# Third-party notices for Data Web The Data application, third-party packages and build tools retain their respective licenses. Native-source notices below are an intentionally conservative source-derived superset, not a claim that every component is linked. No third-party source has been modified. ## node_modules/@swc/helpers@0.5.23/LICENSE Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright 2024 SWC contributors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ## node_modules/@types/command-line-args@5.2.3/LICENSE MIT License Copyright (c) Microsoft Corporation. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE ## node_modules/@types/command-line-usage@5.0.4/LICENSE MIT License Copyright (c) Microsoft Corporation. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE ## node_modules/@types/node@20.19.43/LICENSE MIT License Copyright (c) Microsoft Corporation. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE ## node_modules/ansi-styles@4.3.0/license MIT License Copyright (c) Sindre Sorhus (sindresorhus.com) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## node_modules/apache-arrow@17.0.0/LICENSE.txt Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. -------------------------------------------------------------------------------- src/arrow/util (some portions): Apache 2.0, and 3-clause BSD Some portions of this module are derived from code in the Chromium project, copyright (c) Google inc and (c) The Chromium Authors and licensed under the Apache 2.0 License or the under the 3-clause BSD license: Copyright (c) 2013 The Chromium Authors. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -------------------------------------------------------------------------------- This project includes code from Daniel Lemire's FrameOfReference project. https://github.com/lemire/FrameOfReference/blob/6ccaf9e97160f9a3b299e23a8ef739e711ef0c71/src/bpacking.cpp https://github.com/lemire/FrameOfReference/blob/146948b6058a976bc7767262ad3a2ce201486b93/scripts/turbopacking64.py Copyright: 2013 Daniel Lemire Home page: http://lemire.me/en/ Project page: https://github.com/lemire/FrameOfReference License: Apache License Version 2.0 http://www.apache.org/licenses/LICENSE-2.0 -------------------------------------------------------------------------------- This project includes code from the TensorFlow project Copyright 2015 The TensorFlow Authors. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. -------------------------------------------------------------------------------- This project includes code from the NumPy project. https://github.com/numpy/numpy/blob/e1f191c46f2eebd6cb892a4bfe14d9dd43a06c4e/numpy/core/src/multiarray/multiarraymodule.c#L2910 https://github.com/numpy/numpy/blob/68fd82271b9ea5a9e50d4e761061dfcca851382a/numpy/core/src/multiarray/datetime.c Copyright (c) 2005-2017, NumPy Developers. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the NumPy Developers nor the names of any contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -------------------------------------------------------------------------------- This project includes code from the Boost project Boost Software License - Version 1.0 - August 17th, 2003 Permission is hereby granted, free of charge, to any person or organization obtaining a copy of the software and accompanying documentation covered by this license (the "Software") to use, reproduce, display, distribute, execute, and transmit the Software, and to prepare derivative works of the Software, and to permit third-parties to whom the Software is furnished to do so, all subject to the following: The copyright notices in the Software and this entire statement, including the above license grant, this restriction and the following disclaimer, must be included in all copies of the Software, in whole or in part, and all derivative works of the Software, unless such copies or derivative works are solely in the form of machine-executable object code generated by a source language processor. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- This project includes code from the FlatBuffers project Copyright 2014 Google Inc. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. -------------------------------------------------------------------------------- This project includes code from the tslib project Copyright 2015 Microsoft Corporation. All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. -------------------------------------------------------------------------------- This project includes code from the jemalloc project https://github.com/jemalloc/jemalloc Copyright (C) 2002-2017 Jason Evans . All rights reserved. Copyright (C) 2007-2012 Mozilla Foundation. All rights reserved. Copyright (C) 2009-2017 Facebook, Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice(s), this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice(s), this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -------------------------------------------------------------------------------- This project includes code from the Go project, BSD 3-clause license + PATENTS weak patent termination clause (https://github.com/golang/go/blob/master/PATENTS). Copyright (c) 2009 The Go Authors. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -------------------------------------------------------------------------------- This project includes code from the hs2client https://github.com/cloudera/hs2client Copyright 2016 Cloudera Inc. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. -------------------------------------------------------------------------------- The script ci/scripts/util_wait_for_it.sh has the following license Copyright (c) 2016 Giles Hall Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- The script r/configure has the following license (MIT) Copyright (c) 2017, Jeroen Ooms and Jim Hester Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- cpp/src/arrow/util/logging.cc, cpp/src/arrow/util/logging.h and cpp/src/arrow/util/logging-test.cc are adapted from Ray Project (https://github.com/ray-project/ray) (Apache 2.0). Copyright (c) 2016 Ray Project (https://github.com/ray-project/ray) Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. 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The MIT License (MIT) Copyright (c) 2015, 2016, 2017 Howard Hinnant Copyright (c) 2016 Adrian Colomitchi Copyright (c) 2017 Florian Dang Copyright (c) 2017 Paul Thompson Copyright (c) 2018 Tomasz KamiƄski Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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Copyright: 2016 manylinux Homepage: https://github.com/pypa/manylinux License: The MIT License (MIT) -------------------------------------------------------------------------------- This project includes code from the cymove project: * python/pyarrow/includes/common.pxd includes code from the cymove project The MIT License (MIT) Copyright (c) 2019 Omer Ozarslan Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- The projects includes code from the Ursabot project under the dev/archery directory. License: BSD 2-Clause Copyright 2019 RStudio, Inc. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. 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Terms of the MIT License: -------------------------------------------------------------------- Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. === Some of the benchmark data in testdata/ is licensed differently: - fireworks.jpeg is Copyright 2013 Steinar H. Gunderson, and is licensed under the Creative Commons Attribution 3.0 license (CC-BY-3.0). See https://creativecommons.org/licenses/by/3.0/ for more information. - kppkn.gtb is taken from the Gaviota chess tablebase set, and is licensed under the MIT License. See https://sites.google.com/site/gaviotachessengine/Home/endgame-tablebases-1 for more information. - paper-100k.pdf is an excerpt (bytes 92160 to 194560) from the paper “Combinatorial Modeling of Chromatin Features Quantitatively Predicts DNA Replication Timing in _Drosophila_” by Federico Comoglio and Renato Paro, which is licensed under the CC-BY license. See http://www.ploscompbiol.org/static/license for more ifnormation. - alice29.txt, asyoulik.txt, plrabn12.txt and lcet10.txt are from Project Gutenberg. The first three have expired copyrights and are in the public domain; the latter does not have expired copyright, but is still in the public domain according to the license information (http://www.gutenberg.org/ebooks/53). -------------------------------------------------------------------------------- 3rdparty dependency gflags is statically linked in certain binary distributions, like the python wheels. gflags has the following license: Copyright (c) 2006, Google Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. A function gettimeofday in utilities.cc is based on http://www.google.com/codesearch/p?hl=en#dR3YEbitojA/COPYING&q=GetSystemTimeAsFileTime%20license:bsd The license of this code is: Copyright (c) 2003-2008, Jouni Malinen and contributors All Rights Reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. 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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 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In the future this will likely change to static linkage. zlib has the following license: zlib.h -- interface of the 'zlib' general purpose compression library version 1.2.11, January 15th, 2017 Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. Jean-loup Gailly Mark Adler jloup@gzip.org madler@alumni.caltech.edu -------------------------------------------------------------------------------- 3rdparty dependency openssl is redistributed as a dynamically linked shared library in certain binary distributions, like the python wheels. openssl preceding version 3 has the following license: LICENSE ISSUES ============== The OpenSSL toolkit stays under a double license, i.e. both the conditions of the OpenSSL License and the original SSLeay license apply to the toolkit. See below for the actual license texts. OpenSSL License --------------- /* ==================================================================== * Copyright (c) 1998-2019 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. 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Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ -------------------------------------------------------------------------------- This project includes code from the rtools-backports project. * ci/scripts/PKGBUILD and ci/scripts/r_windows_build.sh are based on code from the rtools-backports project. Copyright: Copyright (c) 2013 - 2019, АлДĐșсДĐč and Jeroen Ooms. All rights reserved. Homepage: https://github.com/r-windows/rtools-backports License: 3-clause BSD -------------------------------------------------------------------------------- Some code from pandas has been adapted for the pyarrow codebase. pandas is available under the 3-clause BSD license, which follows: pandas license ============== Copyright (c) 2011-2012, Lambda Foundry, Inc. and PyData Development Team All rights reserved. Copyright (c) 2008-2011 AQR Capital Management, LLC All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the copyright holder nor the names of any contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -------------------------------------------------------------------------------- Some bits from DyND, in particular aspects of the build system, have been adapted from libdynd and dynd-python under the terms of the BSD 2-clause license The BSD 2-Clause License Copyright (C) 2011-12, Dynamic NDArray Developers All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Dynamic NDArray Developers list: * Mark Wiebe * Continuum Analytics -------------------------------------------------------------------------------- Some source code from Ibis (https://github.com/cloudera/ibis) has been adapted for PyArrow. Ibis is released under the Apache License, Version 2.0. -------------------------------------------------------------------------------- dev/tasks/homebrew-formulae/apache-arrow.rb has the following license: BSD 2-Clause License Copyright (c) 2009-present, Homebrew contributors All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ---------------------------------------------------------------------- cpp/src/arrow/vendored/base64.cpp has the following license ZLIB License Copyright (C) 2004-2017 RenĂ© Nyffenegger This source code is provided 'as-is', without any express or implied warranty. In no event will the author be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this source code must not be misrepresented; you must not claim that you wrote the original source code. If you use this source code in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original source code. 3. This notice may not be removed or altered from any source distribution. RenĂ© Nyffenegger rene.nyffenegger@adp-gmbh.ch -------------------------------------------------------------------------------- This project includes code from Folly. * cpp/src/arrow/vendored/ProducerConsumerQueue.h is based on Folly's * folly/Portability.h * folly/lang/Align.h * folly/ProducerConsumerQueue.h Copyright: Copyright (c) Facebook, Inc. and its affiliates. Home page: https://github.com/facebook/folly License: http://www.apache.org/licenses/LICENSE-2.0 -------------------------------------------------------------------------------- The file cpp/src/arrow/vendored/musl/strptime.c has the following license Copyright © 2005-2020 Rich Felker, et al. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- The file cpp/cmake_modules/BuildUtils.cmake contains code from https://gist.github.com/cristianadam/ef920342939a89fae3e8a85ca9459b49 which is made available under the MIT license Copyright (c) 2019 Cristian Adam Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- The files in cpp/src/arrow/vendored/portable-snippets/ contain code from https://github.com/nemequ/portable-snippets and have the following copyright notice: Each source file contains a preamble explaining the license situation for that file, which takes priority over this file. With the exception of some code pulled in from other repositories (such as ”nit, an MIT-licensed project which is used for testing), the code is public domain, released using the CC0 1.0 Universal dedication (*). (*) https://creativecommons.org/publicdomain/zero/1.0/legalcode -------------------------------------------------------------------------------- The files in cpp/src/arrow/vendored/fast_float/ contain code from https://github.com/lemire/fast_float which is made available under the Apache License 2.0. -------------------------------------------------------------------------------- The file python/pyarrow/vendored/docscrape.py contains code from https://github.com/numpy/numpydoc/ which is made available under the BSD 2-clause license. -------------------------------------------------------------------------------- The file python/pyarrow/vendored/version.py contains code from https://github.com/pypa/packaging/ which is made available under both the Apache license v2.0 and the BSD 2-clause license. -------------------------------------------------------------------------------- The files in cpp/src/arrow/vendored/pcg contain code from https://github.com/imneme/pcg-cpp and have the following copyright notice: Copyright 2014-2019 Melissa O'Neill , and the PCG Project contributors. SPDX-License-Identifier: (Apache-2.0 OR MIT) Licensed under the Apache License, Version 2.0 (provided in LICENSE-APACHE.txt and at http://www.apache.org/licenses/LICENSE-2.0) or under the MIT license (provided in LICENSE-MIT.txt and at http://opensource.org/licenses/MIT), at your option. This file may not be copied, modified, or distributed except according to those terms. Distributed on an "AS IS" BASIS, WITHOUT WARRANTY OF ANY KIND, either express or implied. See your chosen license for details. -------------------------------------------------------------------------------- r/R/dplyr-count-tally.R (some portions) Some portions of this file are derived from code from https://github.com/tidyverse/dplyr/ which is made available under the MIT license Copyright (c) 2013-2019 RStudio and others. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- The file src/arrow/util/io_util.cc contains code from the CPython project which is made available under the Python Software Foundation License Version 2. -------------------------------------------------------------------------------- 3rdparty dependency opentelemetry-cpp is statically linked in certain binary distributions. opentelemetry-cpp is made available under the Apache License 2.0. Copyright The OpenTelemetry Authors SPDX-License-Identifier: Apache-2.0 -------------------------------------------------------------------------------- ci/conan/ is based on code from Conan Package and Dependency Manager. Copyright (c) 2019 Conan.io Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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This product includes software developed by Hewlett-Packard: (c) Copyright [2014-2015] Hewlett-Packard Development Company, L.P ## node_modules/array-back@3.1.0/LICENSE The MIT License (MIT) Copyright (c) 2015-19 Lloyd Brookes <75pound@gmail.com> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## node_modules/command-line-args@5.2.1/LICENSE The MIT License (MIT) Copyright (c) 2014-22 Lloyd Brookes <75pound@gmail.com> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## node_modules/command-line-usage/node_modules/array-back@6.2.3/LICENSE The MIT License (MIT) Copyright (c) 2015-26 Lloyd Brookes Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 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See the License for the specific language governing permissions and limitations under the License. ## node_modules/has-flag@4.0.0/license MIT License Copyright (c) Sindre Sorhus (sindresorhus.com) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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For exact contribution history, see the revision history available at https://github.com/lodash/lodash The following license applies to all parts of this software except as documented below: ==== Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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See the License for the specific language governing permissions and limitations under the License. -------------------------------------------------------------------------------- src/arrow/util (some portions): Apache 2.0, and 3-clause BSD Some portions of this module are derived from code in the Chromium project, copyright (c) Google inc and (c) The Chromium Authors and licensed under the Apache 2.0 License or the under the 3-clause BSD license: Copyright (c) 2013 The Chromium Authors. All rights reserved. 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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the NumPy Developers nor the names of any contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 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See the License for the specific language governing permissions and limitations under the License. -------------------------------------------------------------------------------- This project includes code from the jemalloc project https://github.com/jemalloc/jemalloc Copyright (C) 2002-2017 Jason Evans . All rights reserved. Copyright (C) 2007-2012 Mozilla Foundation. All rights reserved. Copyright (C) 2009-2017 Facebook, Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice(s), this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice(s), this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 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See the License for the specific language governing permissions and limitations under the License. -------------------------------------------------------------------------------- The script ci/scripts/util_wait_for_it.sh has the following license Copyright (c) 2016 Giles Hall Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- cpp/src/arrow/util/logging.cc, cpp/src/arrow/util/logging.h and cpp/src/arrow/util/logging-test.cc are adapted from Ray Project (https://github.com/ray-project/ray) (Apache 2.0). Copyright (c) 2016 Ray Project (https://github.com/ray-project/ray) Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. 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The MIT License (MIT) Copyright (c) 2015, 2016, 2017 Howard Hinnant Copyright (c) 2016 Adrian Colomitchi Copyright (c) 2017 Florian Dang Copyright (c) 2017 Paul Thompson Copyright (c) 2018 Tomasz KamiƄski Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- The file cpp/src/arrow/util/utf8.h includes code adapted from the page https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ with the following license (MIT) Copyright (c) 2008-2009 Bjoern Hoehrmann Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. === Some of the benchmark data in testdata/ is licensed differently: - fireworks.jpeg is Copyright 2013 Steinar H. Gunderson, and is licensed under the Creative Commons Attribution 3.0 license (CC-BY-3.0). See https://creativecommons.org/licenses/by/3.0/ for more information. - kppkn.gtb is taken from the Gaviota chess tablebase set, and is licensed under the MIT License. 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IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. A function gettimeofday in utilities.cc is based on http://www.google.com/codesearch/p?hl=en#dR3YEbitojA/COPYING&q=GetSystemTimeAsFileTime%20license:bsd The license of this code is: Copyright (c) 2003-2008, Jouni Malinen and contributors All Rights Reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name(s) of the above-listed copyright holder(s) nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 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Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of M.I.T. not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. M.I.T. makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. -------------------------------------------------------------------------------- 3rdparty dependency zlib is redistributed as a dynamically linked shared library in certain binary distributions, like the python wheels. In the future this will likely change to static linkage. zlib has the following license: zlib.h -- interface of the 'zlib' general purpose compression library version 1.2.11, January 15th, 2017 Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. Jean-loup Gailly Mark Adler jloup@gzip.org madler@alumni.caltech.edu -------------------------------------------------------------------------------- 3rdparty dependency openssl is redistributed as a dynamically linked shared library in certain binary distributions, like the python wheels. openssl preceding version 3 has the following license: LICENSE ISSUES ============== The OpenSSL toolkit stays under a double license, i.e. both the conditions of the OpenSSL License and the original SSLeay license apply to the toolkit. See below for the actual license texts. OpenSSL License --------------- /* ==================================================================== * Copyright (c) 1998-2019 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. 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The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ -------------------------------------------------------------------------------- This project includes code from the rtools-backports project. * ci/scripts/PKGBUILD and ci/scripts/r_windows_build.sh are based on code from the rtools-backports project. Copyright: Copyright (c) 2013 - 2019, АлДĐșсДĐč and Jeroen Ooms. All rights reserved. Homepage: https://github.com/r-windows/rtools-backports License: 3-clause BSD -------------------------------------------------------------------------------- Some code from pandas has been adapted for the pyarrow codebase. pandas is available under the 3-clause BSD license, which follows: pandas license ============== Copyright (c) 2011-2012, Lambda Foundry, Inc. and PyData Development Team All rights reserved. Copyright (c) 2008-2011 AQR Capital Management, LLC All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the copyright holder nor the names of any contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -------------------------------------------------------------------------------- Some bits from DyND, in particular aspects of the build system, have been adapted from libdynd and dynd-python under the terms of the BSD 2-clause license The BSD 2-Clause License Copyright (C) 2011-12, Dynamic NDArray Developers All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Dynamic NDArray Developers list: * Mark Wiebe * Continuum Analytics -------------------------------------------------------------------------------- Some source code from Ibis (https://github.com/cloudera/ibis) has been adapted for PyArrow. Ibis is released under the Apache License, Version 2.0. -------------------------------------------------------------------------------- dev/tasks/homebrew-formulae/apache-arrow.rb has the following license: BSD 2-Clause License Copyright (c) 2009-present, Homebrew contributors All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ---------------------------------------------------------------------- cpp/src/arrow/vendored/base64.cpp has the following license ZLIB License Copyright (C) 2004-2017 RenĂ© Nyffenegger This source code is provided 'as-is', without any express or implied warranty. In no event will the author be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this source code must not be misrepresented; you must not claim that you wrote the original source code. If you use this source code in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original source code. 3. This notice may not be removed or altered from any source distribution. RenĂ© Nyffenegger rene.nyffenegger@adp-gmbh.ch -------------------------------------------------------------------------------- This project includes code from Folly. * cpp/src/arrow/vendored/ProducerConsumerQueue.h is based on Folly's * folly/Portability.h * folly/lang/Align.h * folly/ProducerConsumerQueue.h Copyright: Copyright (c) Facebook, Inc. and its affiliates. Home page: https://github.com/facebook/folly License: http://www.apache.org/licenses/LICENSE-2.0 -------------------------------------------------------------------------------- The file cpp/src/arrow/vendored/musl/strptime.c has the following license Copyright © 2005-2020 Rich Felker, et al. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- The file cpp/cmake_modules/BuildUtils.cmake contains code from https://gist.github.com/cristianadam/ef920342939a89fae3e8a85ca9459b49 which is made available under the MIT license Copyright (c) 2019 Cristian Adam Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- The files in cpp/src/arrow/vendored/portable-snippets/ contain code from https://github.com/nemequ/portable-snippets and have the following copyright notice: Each source file contains a preamble explaining the license situation for that file, which takes priority over this file. With the exception of some code pulled in from other repositories (such as ”nit, an MIT-licensed project which is used for testing), the code is public domain, released using the CC0 1.0 Universal dedication (*). (*) https://creativecommons.org/publicdomain/zero/1.0/legalcode -------------------------------------------------------------------------------- The files in cpp/src/arrow/vendored/fast_float/ contain code from https://github.com/lemire/fast_float which is made available under the Apache License 2.0. -------------------------------------------------------------------------------- The file python/pyarrow/vendored/docscrape.py contains code from https://github.com/numpy/numpydoc/ which is made available under the BSD 2-clause license. -------------------------------------------------------------------------------- The file python/pyarrow/vendored/version.py contains code from https://github.com/pypa/packaging/ which is made available under both the Apache license v2.0 and the BSD 2-clause license. -------------------------------------------------------------------------------- The files in cpp/src/arrow/vendored/pcg contain code from https://github.com/imneme/pcg-cpp and have the following copyright notice: Copyright 2014-2019 Melissa O'Neill , and the PCG Project contributors. SPDX-License-Identifier: (Apache-2.0 OR MIT) Licensed under the Apache License, Version 2.0 (provided in LICENSE-APACHE.txt and at http://www.apache.org/licenses/LICENSE-2.0) or under the MIT license (provided in LICENSE-MIT.txt and at http://opensource.org/licenses/MIT), at your option. This file may not be copied, modified, or distributed except according to those terms. Distributed on an "AS IS" BASIS, WITHOUT WARRANTY OF ANY KIND, either express or implied. See your chosen license for details. -------------------------------------------------------------------------------- r/R/dplyr-count-tally.R (some portions) Some portions of this file are derived from code from https://github.com/tidyverse/dplyr/ which is made available under the MIT license Copyright (c) 2013-2019 RStudio and others. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- The file src/arrow/util/io_util.cc contains code from the CPython project which is made available under the Python Software Foundation License Version 2. -------------------------------------------------------------------------------- 3rdparty dependency opentelemetry-cpp is statically linked in certain binary distributions. opentelemetry-cpp is made available under the Apache License 2.0. Copyright The OpenTelemetry Authors SPDX-License-Identifier: Apache-2.0 -------------------------------------------------------------------------------- ci/conan/ is based on code from Conan Package and Dependency Manager. Copyright (c) 2019 Conan.io Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- 3rdparty dependency UCX is redistributed as a dynamically linked shared library in certain binary distributions. UCX has the following license: Copyright (c) 2014-2015 UT-Battelle, LLC. All rights reserved. Copyright (C) 2014-2020 Mellanox Technologies Ltd. All rights reserved. Copyright (C) 2014-2015 The University of Houston System. All rights reserved. Copyright (C) 2015 The University of Tennessee and The University of Tennessee Research Foundation. All rights reserved. Copyright (C) 2016-2020 ARM Ltd. All rights reserved. Copyright (c) 2016 Los Alamos National Security, LLC. All rights reserved. Copyright (C) 2016-2020 Advanced Micro Devices, Inc. All rights reserved. Copyright (C) 2019 UChicago Argonne, LLC. All rights reserved. Copyright (c) 2018-2020 NVIDIA CORPORATION. All rights reserved. Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved. Copyright (C) 2016-2020 Stony Brook University. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -------------------------------------------------------------------------------- The file dev/tasks/r/github.packages.yml contains code from https://github.com/ursa-labs/arrow-r-nightly which is made available under the Apache License 2.0. -------------------------------------------------------------------------------- .github/actions/sync-nightlies/action.yml (some portions) Some portions of this file are derived from code from https://github.com/JoshPiper/rsync-docker which is made available under the MIT license Copyright (c) 2020 Joshua Piper Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- .github/actions/sync-nightlies/action.yml (some portions) Some portions of this file are derived from code from https://github.com/burnett01/rsync-deployments which is made available under the MIT license Copyright (c) 2019-2022 Contention Copyright (c) 2019-2022 Burnett01 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- java/vector/src/main/java/org/apache/arrow/vector/util/IntObjectHashMap.java java/vector/src/main/java/org/apache/arrow/vector/util/IntObjectMap.java These file are derived from code from Netty, which is made available under the Apache License 2.0. ## arrow/NOTICE.txt Apache Arrow Copyright 2016-2024 The Apache Software Foundation This product includes software developed at The Apache Software Foundation (http://www.apache.org/). This product includes software from the SFrame project (BSD, 3-clause). * Copyright (C) 2015 Dato, Inc. * Copyright (c) 2009 Carnegie Mellon University. This product includes software from the Feather project (Apache 2.0) https://github.com/wesm/feather This product includes software from the DyND project (BSD 2-clause) https://github.com/libdynd This product includes software from the LLVM project * distributed under the University of Illinois Open Source This product includes software from the google-lint project * Copyright (c) 2009 Google Inc. All rights reserved. This product includes software from the mman-win32 project * Copyright https://code.google.com/p/mman-win32/ * Licensed under the MIT License; This product includes software from the LevelDB project * Copyright (c) 2011 The LevelDB Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * Moved from Kudu http://github.com/cloudera/kudu This product includes software from the CMake project * Copyright 2001-2009 Kitware, Inc. * Copyright 2012-2014 Continuum Analytics, Inc. * All rights reserved. This product includes software from https://github.com/matthew-brett/multibuild (BSD 2-clause) * Copyright (c) 2013-2016, Matt Terry and Matthew Brett; all rights reserved. This product includes software from the Ibis project (Apache 2.0) * Copyright (c) 2015 Cloudera, Inc. * https://github.com/cloudera/ibis This product includes software from Dremio (Apache 2.0) * Copyright (C) 2017-2018 Dremio Corporation * https://github.com/dremio/dremio-oss This product includes software from Google Guava (Apache 2.0) * Copyright (C) 2007 The Guava Authors * https://github.com/google/guava This product include software from CMake (BSD 3-Clause) * CMake - Cross Platform Makefile Generator * Copyright 2000-2019 Kitware, Inc. and Contributors The web site includes files generated by Jekyll. -------------------------------------------------------------------------------- This product includes code from Apache Kudu, which includes the following in its NOTICE file: Apache Kudu Copyright 2016 The Apache Software Foundation This product includes software developed at The Apache Software Foundation (http://www.apache.org/). Portions of this software were developed at Cloudera, Inc (http://www.cloudera.com/). -------------------------------------------------------------------------------- This product includes code from Apache ORC, which includes the following in its NOTICE file: Apache ORC Copyright 2013-2019 The Apache Software Foundation This product includes software developed by The Apache Software Foundation (http://www.apache.org/). This product includes software developed by Hewlett-Packard: (c) Copyright [2014-2015] Hewlett-Packard Development Company, L.P ## duckdb/LICENSE Copyright 2018-2025 Stichting DuckDB Foundation Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/brotli/LICENSE Copyright (c) 2009, 2010, 2013-2016 by the Brotli Authors. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/concurrentqueue/LICENSE This license file applies to everything in this repository except that which is explicitly annotated as being written by other authors, i.e. the Boost queue (included in the benchmarks for comparison), Intel's TBB library (ditto), the CDSChecker tool (used for verification), the Relacy model checker (ditto), and Jeff Preshing's semaphore implementation (used in the blocking queue) which has a zlib license (embedded in lightweightsempahore.h). --- Simplified BSD License: Copyright (c) 2013-2016, Cameron Desrochers. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. --- I have also chosen to dual-license under the Boost Software License as an alternative to the Simplified BSD license above: Boost Software License - Version 1.0 - August 17th, 2003 Permission is hereby granted, free of charge, to any person or organization obtaining a copy of the software and accompanying documentation covered by this license (the "Software") to use, reproduce, display, distribute, execute, and transmit the Software, and to prepare derivative works of the Software, and to permit third-parties to whom the Software is furnished to do so, all subject to the following: The copyright notices in the Software and this entire statement, including the above license grant, this restriction and the following disclaimer, must be included in all copies of the Software, in whole or in part, and all derivative works of the Software, unless such copies or derivative works are solely in the form of machine-executable object code generated by a source language processor. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/fast_float/LICENSE Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/fastpforlib/LICENSE Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: You must give any other recipients of the Work or Derivative Works a copy of this License; and You must cause any modified files to carry prominent notices stating that You changed the files; and You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ## duckdb/third_party/fmt/LICENSE Copyright (c) 2012 - present, Victor Zverovich Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. --- Optional exception to the license --- As an exception, if, as a result of your compiling your source code, portions of this Software are embedded into a machine-executable object form of such source code, you may redistribute such embedded portions in such object form without including the above copyright and permission notices. ## duckdb/third_party/fsst/LICENSE MIT License Copyright (c) 2018-2020, CWI, TU Munich, FSU Jena Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/httplib/LICENSE The MIT License (MIT) Copyright (c) 2017 yhirose Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/hyperloglog/LICENSE Copyright (c) 2012 Art.sy, Inc. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/jaro_winkler/LICENSE Copyright © 2022 Max Bachmann Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/libpg_query/LICENSE Copyright (c) 2015, Lukas Fittl All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of pg_query nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ## duckdb/third_party/lz4/LICENSE LZ4 Library Copyright (c) 2011-2020, Yann Collet All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ## duckdb/third_party/mbedtls/LICENSE Mbed TLS files are provided under a dual [Apache-2.0](https://spdx.org/licenses/Apache-2.0.html) OR [GPL-2.0-or-later](https://spdx.org/licenses/GPL-2.0-or-later.html) license. This means that users may choose which of these licenses they take the code under. The full text of each of these licenses is given below. Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. =============================================================================== GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. ## duckdb/third_party/miniz/LICENSE Copyright 2013-2014 RAD Game Tools and Valve Software Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC All Rights Reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/parquet/LICENSE Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS -------------------------------------------------------------------------------- This product includes code from Apache Avro. Copyright: 2014 The Apache Software Foundation. Home page: https://avro.apache.org/ License: http://www.apache.org/licenses/LICENSE-2.0 -------------------------------------------------------------------------------- This project includes code from Daniel Lemire's JavaFastPFOR project. The "Lemire" bit packing source code produced by parquet-generator is derived from the JavaFastPFOR project. Copyright: 2013 Daniel Lemire Home page: http://lemire.me/en/ Project page: https://github.com/lemire/JavaFastPFOR License: Apache License Version 2.0 http://www.apache.org/licenses/LICENSE-2.0 -------------------------------------------------------------------------------- This product includes code from Apache Spark. * dev/merge_parquet_pr.py is based on Spark's dev/merge_spark_pr.py Copyright: 2014 The Apache Software Foundation. Home page: https://spark.apache.org/ License: http://www.apache.org/licenses/LICENSE-2.0 -------------------------------------------------------------------------------- This product includes code from Twitter's ElephantBird project. * parquet-hadoop's UnmaterializableRecordCounter.java includes code from ElephantBird's LzoRecordReader.java Copyright: 2012-2014 Twitter Home page: https://github.com/twitter/elephant-bird License: http://www.apache.org/licenses/LICENSE-2.0 ## duckdb/third_party/pcg/LICENSE Copyright (c) 2014-2017 Melissa O'Neill and PCG Project contributors Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/pdqsort/LICENSE Copyright (c) 2021 Orson Peters This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. ## duckdb/third_party/re2/LICENSE // Copyright (c) 2009 The RE2 Authors. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ## duckdb/third_party/ska_sort/LICENSE Copyright Malte Skarupke 2016. Distributed under the Boost Software License, Version 1.0. (See http://www.boost.org/LICENSE_1_0.txt) ## duckdb/third_party/skiplist/LICENSE MIT License Copyright (c) 2017-2023 Paul Ross Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/snappy/LICENSE Copyright 2011, Google Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. === Some of the benchmark data in testdata/ is licensed differently: - fireworks.jpeg is Copyright 2013 Steinar H. Gunderson, and is licensed under the Creative Commons Attribution 3.0 license (CC-BY-3.0). See https://creativecommons.org/licenses/by/3.0/ for more information. - kppkn.gtb is taken from the Gaviota chess tablebase set, and is licensed under the MIT License. See https://sites.google.com/site/gaviotachessengine/Home/endgame-tablebases-1 for more information. - paper-100k.pdf is an excerpt (bytes 92160 to 194560) from the paper “Combinatorial Modeling of Chromatin Features Quantitatively Predicts DNA Replication Timing in _Drosophila_” by Federico Comoglio and Renato Paro, which is licensed under the CC-BY license. See http://www.ploscompbiol.org/static/license for more ifnormation. - alice29.txt, asyoulik.txt, plrabn12.txt and lcet10.txt are from Project Gutenberg. The first three have expired copyrights and are in the public domain; the latter does not have expired copyright, but is still in the public domain according to the license information (http://www.gutenberg.org/ebooks/53). ## duckdb/third_party/snowball/LICENSE Copyright (c) 2001, Dr Martin Porter Copyright (c) 2004,2005, Richard Boulton Copyright (c) 2013, Yoshiki Shibukawa Copyright (c) 2006,2007,2009,2010,2011,2014-2019, Olly Betts All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the Snowball project nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ## duckdb/third_party/tdigest/LICENSE Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ## duckdb/third_party/tdigest/NOTICES The Java version of the t-digest was originally authored by Ted Dunning A number of small but very helpful changes have been contributed by Adrien Grand (https://github.com/jpountz) to the Java version. The C++ version herein is a derivative of the Java version. It was written by Derrick R. Burns (https:://github.com/derrickburns). The main modifications are 1) higher performance multi- t-digest merging and 2) faster quantile() and cdf() computation. ## duckdb/third_party/thrift/thrift/LICENSE Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. -------------------------------------------------- SOFTWARE DISTRIBUTED WITH THRIFT: The Apache Thrift software includes a number of subcomponents with separate copyright notices and license terms. Your use of the source code for the these subcomponents is subject to the terms and conditions of the following licenses. -------------------------------------------------- Portions of the following files are licensed under the MIT License: lib/erl/src/Makefile.am Please see doc/otp-base-license.txt for the full terms of this license. -------------------------------------------------- For the aclocal/ax_boost_base.m4 and contrib/fb303/aclocal/ax_boost_base.m4 components: # Copyright (c) 2007 Thomas Porschberg # # Copying and distribution of this file, with or without # modification, are permitted in any medium without royalty provided # the copyright notice and this notice are preserved. -------------------------------------------------- For the lib/nodejs/lib/thrift/json_parse.js: /* json_parse.js 2015-05-02 Public Domain. NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK. */ (By Douglas Crockford ) -------------------------------------------------- ## duckdb/third_party/utf8proc/LICENSE ## utf8proc license ## **utf8proc** is a software package originally developed by Jan Behrens and the rest of the Public Software Group, who deserve nearly all of the credit for this library, that is now maintained by the Julia-language developers. Like the original utf8proc, whose copyright and license statements are reproduced below, all new work on the utf8proc library is licensed under the [MIT "expat" license](http://opensource.org/licenses/MIT): *Copyright © 2014-2019 by Steven G. Johnson, Jiahao Chen, Tony Kelman, Jonas Fonseca, and other contributors listed in the git history.* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## Original utf8proc license ## *Copyright (c) 2009, 2013 Public Software Group e. V., Berlin, Germany* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## Unicode data license ## This software contains data (`utf8proc_data.c`) derived from processing the Unicode data files. The following license applies to that data: **COPYRIGHT AND PERMISSION NOTICE** *Copyright (c) 1991-2007 Unicode, Inc. All rights reserved. Distributed under the Terms of Use in http://www.unicode.org/copyright.html.* Permission is hereby granted, free of charge, to any person obtaining a copy of the Unicode data files and any associated documentation (the "Data Files") or Unicode software and any associated documentation (the "Software") to deal in the Data Files or Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, and/or sell copies of the Data Files or Software, and to permit persons to whom the Data Files or Software are furnished to do so, provided that (a) the above copyright notice(s) and this permission notice appear with all copies of the Data Files or Software, (b) both the above copyright notice(s) and this permission notice appear in associated documentation, and (c) there is clear notice in each modified Data File or in the Software as well as in the documentation associated with the Data File(s) or Software that the data or software has been modified. THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE DATA FILES OR SOFTWARE. Except as contained in this notice, the name of a copyright holder shall not be used in advertising or otherwise to promote the sale, use or other dealings in these Data Files or Software without prior written authorization of the copyright holder. Unicode and the Unicode logo are trademarks of Unicode, Inc., and may be registered in some jurisdictions. All other trademarks and registered trademarks mentioned herein are the property of their respective owners. ## duckdb/third_party/vergesort/LICENSE The MIT License (MIT) Copyright (c) 2015 Morwenn Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/yyjson/LICENSE MIT License Copyright (c) 2020 YaoYuan Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## duckdb/third_party/zstd/LICENSE BSD License For Zstandard software Copyright (c) 2016-present, Facebook, Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name Facebook nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ## emscripten/LICENSE Emscripten is available under 2 licenses, the MIT license and the University of Illinois/NCSA Open Source License. Both are permissive open source licenses, with little if any practical difference between them. The reason for offering both is that (1) the MIT license is well-known, while (2) the University of Illinois/NCSA Open Source License allows Emscripten's code to be integrated upstream into LLVM, which uses that license, should the opportunity arise. The full text of both licenses follows. ============================================================================== Copyright (c) 2010-2014 Emscripten authors, see AUTHORS file. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ============================================================================== Copyright (c) 2010-2014 Emscripten authors, see AUTHORS file. All rights reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal with the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimers. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimers in the documentation and/or other materials provided with the distribution. Neither the names of Mozilla, nor the names of its contributors may be used to endorse or promote products derived from this Software without specific prior written permission. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE. ============================================================================== This program uses portions of Node.js source code located in src/library_path.js, in accordance with the terms of the MIT license. Node's license follows: """ Copyright Joyent, Inc. and other Node contributors. All rights reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. """ The musl libc project is bundled in this repo, and it has the MIT license, see system/lib/libc/musl/COPYRIGHT The third_party/ subdirectory contains code with other licenses. None of it is used by default, but certain options use it (e.g., the optional closure compiler flag will run closure compiler from third_party/). ## emscripten/system/include/SDL/COPYING Simple DirectMedia Layer Copyright (C) 1997-2011 Sam Lantinga This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. --- Portions of these headers taken from SDL2 (where noted) Copyright (C) 1997-2013 Sam Lantinga ## emscripten/system/lib/compiler-rt/LICENSE.TXT ============================================================================== The LLVM Project is under the Apache License v2.0 with LLVM Exceptions: ============================================================================== Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ---- LLVM Exceptions to the Apache 2.0 License ---- As an exception, if, as a result of your compiling your source code, portions of this Software are embedded into an Object form of such source code, you may redistribute such embedded portions in such Object form without complying with the conditions of Sections 4(a), 4(b) and 4(d) of the License. In addition, if you combine or link compiled forms of this Software with software that is licensed under the GPLv2 ("Combined Software") and if a court of competent jurisdiction determines that the patent provision (Section 3), the indemnity provision (Section 9) or other Section of the License conflicts with the conditions of the GPLv2, you may retroactively and prospectively choose to deem waived or otherwise exclude such Section(s) of the License, but only in their entirety and only with respect to the Combined Software. ============================================================================== Software from third parties included in the LLVM Project: ============================================================================== The LLVM Project contains third party software which is under different license terms. All such code will be identified clearly using at least one of two mechanisms: 1) It will be in a separate directory tree with its own `LICENSE.txt` or `LICENSE` file at the top containing the specific license and restrictions which apply to that software, or 2) It will contain specific license and restriction terms at the top of every file. ============================================================================== Legacy LLVM License (https://llvm.org/docs/DeveloperPolicy.html#legacy): ============================================================================== The compiler_rt library is dual licensed under both the University of Illinois "BSD-Like" license and the MIT license. As a user of this code you may choose to use it under either license. As a contributor, you agree to allow your code to be used under both. Full text of the relevant licenses is included below. ============================================================================== University of Illinois/NCSA Open Source License Copyright (c) 2009-2019 by the contributors listed in CREDITS.TXT All rights reserved. Developed by: LLVM Team University of Illinois at Urbana-Champaign http://llvm.org Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal with the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimers. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimers in the documentation and/or other materials provided with the distribution. * Neither the names of the LLVM Team, University of Illinois at Urbana-Champaign, nor the names of its contributors may be used to endorse or promote products derived from this Software without specific prior written permission. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE. ============================================================================== Copyright (c) 2009-2015 by the contributors listed in CREDITS.TXT Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## emscripten/system/lib/libc/musl/COPYRIGHT musl as a whole is licensed under the following standard MIT license: ---------------------------------------------------------------------- Copyright © 2005-2020 Rich Felker, et al. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ---------------------------------------------------------------------- Authors/contributors include: A. Wilcox Ada Worcester Alex Dowad Alex Suykov Alexander Monakov Andre McCurdy Andrew Kelley Anthony G. Basile Aric Belsito Arvid Picciani Bartosz Brachaczek Benjamin Peterson Bobby Bingham Boris Brezillon Brent Cook Chris Spiegel ClĂ©ment Vasseur Daniel Micay Daniel Sabogal Daurnimator David Carlier David Edelsohn Denys Vlasenko Dmitry Ivanov Dmitry V. Levin Drew DeVault Emil Renner Berthing Fangrui Song Felix Fietkau Felix Janda Gianluca Anzolin Hauke Mehrtens He X Hiltjo Posthuma Isaac Dunham Jaydeep Patil Jens Gustedt Jeremy Huntwork Jo-Philipp Wich Joakim Sindholt John Spencer Julien Ramseier Justin Cormack Kaarle Ritvanen Khem Raj Kylie McClain Leah Neukirchen Luca Barbato Luka Perkov M Farkas-Dyck (Strake) Mahesh Bodapati Markus Wichmann Masanori Ogino Michael Clark Michael Forney Mikhail Kremnyov Natanael Copa Nicholas J. Kain orc Pascal Cuoq Patrick Oppenlander Petr Hosek Petr Skocik Pierre Carrier Reini Urban Rich Felker Richard Pennington Ryan Fairfax Samuel Holland Segev Finer Shiz sin Solar Designer Stefan Kristiansson Stefan O'Rear Szabolcs Nagy Timo TerĂ€s Trutz Behn Valentin Ochs Will Dietz William Haddon William Pitcock Portions of this software are derived from third-party works licensed under terms compatible with the above MIT license: The TRE regular expression implementation (src/regex/reg* and src/regex/tre*) is Copyright © 2001-2008 Ville Laurikari and licensed under a 2-clause BSD license (license text in the source files). The included version has been heavily modified by Rich Felker in 2012, in the interests of size, simplicity, and namespace cleanliness. Much of the math library code (src/math/* and src/complex/*) is Copyright © 1993,2004 Sun Microsystems or Copyright © 2003-2011 David Schultz or Copyright © 2003-2009 Steven G. Kargl or Copyright © 2003-2009 Bruce D. Evans or Copyright © 2008 Stephen L. Moshier or Copyright © 2017-2018 Arm Limited and labelled as such in comments in the individual source files. All have been licensed under extremely permissive terms. The ARM memcpy code (src/string/arm/memcpy.S) is Copyright © 2008 The Android Open Source Project and is licensed under a two-clause BSD license. It was taken from Bionic libc, used on Android. The AArch64 memcpy and memset code (src/string/aarch64/*) are Copyright © 1999-2019, Arm Limited. The implementation of DES for crypt (src/crypt/crypt_des.c) is Copyright © 1994 David Burren. It is licensed under a BSD license. The implementation of blowfish crypt (src/crypt/crypt_blowfish.c) was originally written by Solar Designer and placed into the public domain. The code also comes with a fallback permissive license for use in jurisdictions that may not recognize the public domain. The smoothsort implementation (src/stdlib/qsort.c) is Copyright © 2011 Valentin Ochs and is licensed under an MIT-style license. The x86_64 port was written by Nicholas J. Kain and is licensed under the standard MIT terms. The mips and microblaze ports were originally written by Richard Pennington for use in the ellcc project. The original code was adapted by Rich Felker for build system and code conventions during upstream integration. It is licensed under the standard MIT terms. The mips64 port was contributed by Imagination Technologies and is licensed under the standard MIT terms. The powerpc port was also originally written by Richard Pennington, and later supplemented and integrated by John Spencer. It is licensed under the standard MIT terms. All other files which have no copyright comments are original works produced specifically for use as part of this library, written either by Rich Felker, the main author of the library, or by one or more contibutors listed above. Details on authorship of individual files can be found in the git version control history of the project. The omission of copyright and license comments in each file is in the interest of source tree size. In addition, permission is hereby granted for all public header files (include/* and arch/*/bits/*) and crt files intended to be linked into applications (crt/*, ldso/dlstart.c, and arch/*/crt_arch.h) to omit the copyright notice and permission notice otherwise required by the license, and to use these files without any requirement of attribution. These files include substantial contributions from: Bobby Bingham John Spencer Nicholas J. Kain Rich Felker Richard Pennington Stefan Kristiansson Szabolcs Nagy all of whom have explicitly granted such permission. This file previously contained text expressing a belief that most of the files covered by the above exception were sufficiently trivial not to be subject to copyright, resulting in confusion over whether it negated the permissions granted in the license. In the spirit of permissive licensing, and of not having licensing issues being an obstacle to adoption, that text has been removed. ## emscripten/system/lib/libcxx/LICENSE.TXT ============================================================================== The LLVM Project is under the Apache License v2.0 with LLVM Exceptions: ============================================================================== Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ---- LLVM Exceptions to the Apache 2.0 License ---- As an exception, if, as a result of your compiling your source code, portions of this Software are embedded into an Object form of such source code, you may redistribute such embedded portions in such Object form without complying with the conditions of Sections 4(a), 4(b) and 4(d) of the License. In addition, if you combine or link compiled forms of this Software with software that is licensed under the GPLv2 ("Combined Software") and if a court of competent jurisdiction determines that the patent provision (Section 3), the indemnity provision (Section 9) or other Section of the License conflicts with the conditions of the GPLv2, you may retroactively and prospectively choose to deem waived or otherwise exclude such Section(s) of the License, but only in their entirety and only with respect to the Combined Software. ============================================================================== Software from third parties included in the LLVM Project: ============================================================================== The LLVM Project contains third party software which is under different license terms. All such code will be identified clearly using at least one of two mechanisms: 1) It will be in a separate directory tree with its own `LICENSE.txt` or `LICENSE` file at the top containing the specific license and restrictions which apply to that software, or 2) It will contain specific license and restriction terms at the top of every file. ============================================================================== Legacy LLVM License (https://llvm.org/docs/DeveloperPolicy.html#legacy): ============================================================================== The libc++ library is dual licensed under both the University of Illinois "BSD-Like" license and the MIT license. As a user of this code you may choose to use it under either license. As a contributor, you agree to allow your code to be used under both. Full text of the relevant licenses is included below. ============================================================================== University of Illinois/NCSA Open Source License Copyright (c) 2009-2019 by the contributors listed in CREDITS.TXT All rights reserved. Developed by: LLVM Team University of Illinois at Urbana-Champaign http://llvm.org Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal with the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimers. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimers in the documentation and/or other materials provided with the distribution. * Neither the names of the LLVM Team, University of Illinois at Urbana-Champaign, nor the names of its contributors may be used to endorse or promote products derived from this Software without specific prior written permission. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE. ============================================================================== Copyright (c) 2009-2014 by the contributors listed in CREDITS.TXT Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## emscripten/system/lib/libcxxabi/LICENSE.TXT ============================================================================== The LLVM Project is under the Apache License v2.0 with LLVM Exceptions: ============================================================================== Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ---- LLVM Exceptions to the Apache 2.0 License ---- As an exception, if, as a result of your compiling your source code, portions of this Software are embedded into an Object form of such source code, you may redistribute such embedded portions in such Object form without complying with the conditions of Sections 4(a), 4(b) and 4(d) of the License. In addition, if you combine or link compiled forms of this Software with software that is licensed under the GPLv2 ("Combined Software") and if a court of competent jurisdiction determines that the patent provision (Section 3), the indemnity provision (Section 9) or other Section of the License conflicts with the conditions of the GPLv2, you may retroactively and prospectively choose to deem waived or otherwise exclude such Section(s) of the License, but only in their entirety and only with respect to the Combined Software. ============================================================================== Software from third parties included in the LLVM Project: ============================================================================== The LLVM Project contains third party software which is under different license terms. All such code will be identified clearly using at least one of two mechanisms: 1) It will be in a separate directory tree with its own `LICENSE.txt` or `LICENSE` file at the top containing the specific license and restrictions which apply to that software, or 2) It will contain specific license and restriction terms at the top of every file. ============================================================================== Legacy LLVM License (https://llvm.org/docs/DeveloperPolicy.html#legacy): ============================================================================== The libc++abi library is dual licensed under both the University of Illinois "BSD-Like" license and the MIT license. As a user of this code you may choose to use it under either license. As a contributor, you agree to allow your code to be used under both. Full text of the relevant licenses is included below. ============================================================================== University of Illinois/NCSA Open Source License Copyright (c) 2009-2019 by the contributors listed in CREDITS.TXT All rights reserved. Developed by: LLVM Team University of Illinois at Urbana-Champaign http://llvm.org Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal with the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimers. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimers in the documentation and/or other materials provided with the distribution. * Neither the names of the LLVM Team, University of Illinois at Urbana-Champaign, nor the names of its contributors may be used to endorse or promote products derived from this Software without specific prior written permission. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE. ============================================================================== Copyright (c) 2009-2014 by the contributors listed in CREDITS.TXT Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## emscripten/system/lib/libunwind/LICENSE.TXT ============================================================================== The LLVM Project is under the Apache License v2.0 with LLVM Exceptions: ============================================================================== Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ---- LLVM Exceptions to the Apache 2.0 License ---- As an exception, if, as a result of your compiling your source code, portions of this Software are embedded into an Object form of such source code, you may redistribute such embedded portions in such Object form without complying with the conditions of Sections 4(a), 4(b) and 4(d) of the License. In addition, if you combine or link compiled forms of this Software with software that is licensed under the GPLv2 ("Combined Software") and if a court of competent jurisdiction determines that the patent provision (Section 3), the indemnity provision (Section 9) or other Section of the License conflicts with the conditions of the GPLv2, you may retroactively and prospectively choose to deem waived or otherwise exclude such Section(s) of the License, but only in their entirety and only with respect to the Combined Software. ============================================================================== Software from third parties included in the LLVM Project: ============================================================================== The LLVM Project contains third party software which is under different license terms. All such code will be identified clearly using at least one of two mechanisms: 1) It will be in a separate directory tree with its own `LICENSE.txt` or `LICENSE` file at the top containing the specific license and restrictions which apply to that software, or 2) It will contain specific license and restriction terms at the top of every file. ============================================================================== Legacy LLVM License (https://llvm.org/docs/DeveloperPolicy.html#legacy): ============================================================================== The libunwind library is dual licensed under both the University of Illinois "BSD-Like" license and the MIT license. As a user of this code you may choose to use it under either license. As a contributor, you agree to allow your code to be used under both. Full text of the relevant licenses is included below. ============================================================================== University of Illinois/NCSA Open Source License Copyright (c) 2009-2019 by the contributors listed in CREDITS.TXT All rights reserved. Developed by: LLVM Team University of Illinois at Urbana-Champaign http://llvm.org Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal with the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimers. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimers in the documentation and/or other materials provided with the distribution. * Neither the names of the LLVM Team, University of Illinois at Urbana-Champaign, nor the names of its contributors may be used to endorse or promote products derived from this Software without specific prior written permission. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE. ============================================================================== Copyright (c) 2009-2014 by the contributors listed in CREDITS.TXT Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## emscripten/system/lib/mimalloc/LICENSE MIT License Copyright (c) 2018-2021 Microsoft Corporation, Daan Leijen Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## emscripten/third_party/closure-compiler/node-externs/LICENSE Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ## emscripten/third_party/leb128/LICENSE MIT License Copyright (c) 2021 Mohanson Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## emscripten/third_party/terser/LICENSE UglifyJS is released under the BSD license: Copyright 2012-2018 (c) Mihai Bazon Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## Native embedded headers ## duckdb-d1dc88f950d456d72493df452dabdcd13aa413dd/third_party/concurrentqueue/blockingconcurrentqueue.h // Provides an efficient blocking version of moodycamel::ConcurrentQueue. // ©2015-2016 Cameron Desrochers. Distributed under the terms of the simplified // BSD license, available at the top of concurrentqueue.h. // Uses Jeff Preshing's semaphore implementation (under the terms of its // separate zlib license, embedded below). #pragma once #include "concurrentqueue.h" #include "lightweightsemaphore.h" #include #include #include #include #include namespace duckdb_moodycamel { // This is a blocking version of the queue. It has an almost identical interface to // the normal non-blocking version, with the addition of various wait_dequeue() methods // and the removal of producer-specific dequeue methods. template class BlockingConcurrentQueue { private: typedef ::duckdb_moodycamel::ConcurrentQueue ConcurrentQueue; typedef ::duckdb_moodycamel::LightweightSemaphore LightweightSemaphore; public: typedef typename ConcurrentQueue::producer_token_t producer_token_t; typedef typename ConcurrentQueue::consumer_token_t consumer_token_t; typedef typename ConcurrentQueue::index_t index_t; typedef typename ConcurrentQueue::size_t size_t; typedef typename std::make_signed::type ssize_t; static const size_t BLOCK_SIZE = ConcurrentQueue::BLOCK_SIZE; static const size_t EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD = ConcurrentQueue::EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD; static const size_t EXPLICIT_INITIAL_INDEX_SIZE = ConcurrentQueue::EXPLICIT_INITIAL_INDEX_SIZE; static const size_t IMPLICIT_INITIAL_INDEX_SIZE = ConcurrentQueue::IMPLICIT_INITIAL_INDEX_SIZE; static const size_t INITIAL_IMPLICIT_PRODUCER_HASH_SIZE = ConcurrentQueue::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE; static const std::uint32_t EXPLICIT_CONSUMER_CONSUMPTION_QUOTA_BEFORE_ROTATE = ConcurrentQueue::EXPLICIT_CONSUMER_CONSUMPTION_QUOTA_BEFORE_ROTATE; static const size_t MAX_SUBQUEUE_SIZE = ConcurrentQueue::MAX_SUBQUEUE_SIZE; public: // Creates a queue with at least `capacity` element slots; note that the // actual number of elements that can be inserted without additional memory // allocation depends on the number of producers and the block size (e.g. if // the block size is equal to `capacity`, only a single block will be allocated // up-front, which means only a single producer will be able to enqueue elements // without an extra allocation -- blocks aren't shared between producers). // This method is not thread safe -- it is up to the user to ensure that the // queue is fully constructed before it starts being used by other threads (this // includes making the memory effects of construction visible, possibly with a // memory barrier). explicit BlockingConcurrentQueue(size_t capacity = 6 * BLOCK_SIZE) : inner(capacity), sema(create(), &BlockingConcurrentQueue::template destroy) { assert(reinterpret_cast((BlockingConcurrentQueue*)1) == &((BlockingConcurrentQueue*)1)->inner && "BlockingConcurrentQueue must have ConcurrentQueue as its first member"); if (!sema) { MOODYCAMEL_THROW(std::bad_alloc()); } } BlockingConcurrentQueue(size_t minCapacity, size_t maxExplicitProducers, size_t maxImplicitProducers) : inner(minCapacity, maxExplicitProducers, maxImplicitProducers), sema(create(), &BlockingConcurrentQueue::template destroy) { assert(reinterpret_cast((BlockingConcurrentQueue*)1) == &((BlockingConcurrentQueue*)1)->inner && "BlockingConcurrentQueue must have ConcurrentQueue as its first member"); if (!sema) { MOODYCAMEL_THROW(std::bad_alloc()); } } // Disable copying and copy assignment BlockingConcurrentQueue(BlockingConcurrentQueue const&) MOODYCAMEL_DELETE_FUNCTION; BlockingConcurrentQueue& operator=(BlockingConcurrentQueue const&) MOODYCAMEL_DELETE_FUNCTION; // Moving is supported, but note that it is *not* a thread-safe operation. // Nobody can use the queue while it's being moved, and the memory effects // of that move must be propagated to other threads before they can use it. // Note: When a queue is moved, its tokens are still valid but can only be // used with the destination queue (i.e. semantically they are moved along // with the queue itself). BlockingConcurrentQueue(BlockingConcurrentQueue&& other) MOODYCAMEL_NOEXCEPT : inner(std::move(other.inner)), sema(std::move(other.sema)) { } inline BlockingConcurrentQueue& operator=(BlockingConcurrentQueue&& other) MOODYCAMEL_NOEXCEPT { return swap_internal(other); } // Swaps this queue's state with the other's. Not thread-safe. // Swapping two queues does not invalidate their tokens, however // the tokens that were created for one queue must be used with // only the swapped queue (i.e. the tokens are tied to the // queue's movable state, not the object itself). inline void swap(BlockingConcurrentQueue& other) MOODYCAMEL_NOEXCEPT { swap_internal(other); } private: BlockingConcurrentQueue& swap_internal(BlockingConcurrentQueue& other) { if (this == &other) { return *this; } inner.swap(other.inner); sema.swap(other.sema); return *this; } public: // Enqueues a single item (by copying it). // Allocates memory if required. Only fails if memory allocation fails (or implicit // production is disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE is 0, // or Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Thread-safe. inline bool enqueue(T const& item) { if ((details::likely)(inner.enqueue(item))) { sema->signal(); return true; } return false; } // Enqueues a single item (by moving it, if possible). // Allocates memory if required. Only fails if memory allocation fails (or implicit // production is disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE is 0, // or Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Thread-safe. inline bool enqueue(T&& item) { if ((details::likely)(inner.enqueue(std::move(item)))) { sema->signal(); return true; } return false; } // Enqueues a single item (by copying it) using an explicit producer token. // Allocates memory if required. Only fails if memory allocation fails (or // Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Thread-safe. inline bool enqueue(producer_token_t const& token, T const& item) { if ((details::likely)(inner.enqueue(token, item))) { sema->signal(); return true; } return false; } // Enqueues a single item (by moving it, if possible) using an explicit producer token. // Allocates memory if required. Only fails if memory allocation fails (or // Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Thread-safe. inline bool enqueue(producer_token_t const& token, T&& item) { if ((details::likely)(inner.enqueue(token, std::move(item)))) { sema->signal(); return true; } return false; } // Enqueues several items. // Allocates memory if required. Only fails if memory allocation fails (or // implicit production is disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE // is 0, or Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Note: Use std::make_move_iterator if the elements should be moved instead of copied. // Thread-safe. template inline bool enqueue_bulk(It itemFirst, size_t count) { if ((details::likely)(inner.enqueue_bulk(std::forward(itemFirst), count))) { sema->signal((LightweightSemaphore::ssize_t)(ssize_t)count); return true; } return false; } // Enqueues several items using an explicit producer token. // Allocates memory if required. Only fails if memory allocation fails // (or Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Note: Use std::make_move_iterator if the elements should be moved // instead of copied. // Thread-safe. template inline bool enqueue_bulk(producer_token_t const& token, It itemFirst, size_t count) { if ((details::likely)(inner.enqueue_bulk(token, std::forward(itemFirst), count))) { sema->signal((LightweightSemaphore::ssize_t)(ssize_t)count); return true; } return false; } // Enqueues a single item (by copying it). // Does not allocate memory. Fails if not enough room to enqueue (or implicit // production is disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE // is 0). // Thread-safe. inline bool try_enqueue(T const& item) { if (inner.try_enqueue(item)) { sema->signal(); return true; } return false; } // Enqueues a single item (by moving it, if possible). // Does not allocate memory (except for one-time implicit producer). // Fails if not enough room to enqueue (or implicit production is // disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE is 0). // Thread-safe. inline bool try_enqueue(T&& item) { if (inner.try_enqueue(std::move(item))) { sema->signal(); return true; } return false; } // Enqueues a single item (by copying it) using an explicit producer token. // Does not allocate memory. Fails if not enough room to enqueue. // Thread-safe. inline bool try_enqueue(producer_token_t const& token, T const& item) { if (inner.try_enqueue(token, item)) { sema->signal(); return true; } return false; } // Enqueues a single item (by moving it, if possible) using an explicit producer token. // Does not allocate memory. Fails if not enough room to enqueue. // Thread-safe. inline bool try_enqueue(producer_token_t const& token, T&& item) { if (inner.try_enqueue(token, std::move(item))) { sema->signal(); return true; } return false; } // Enqueues several items. // Does not allocate memory (except for one-time implicit producer). // Fails if not enough room to enqueue (or implicit production is // disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE is 0). // Note: Use std::make_move_iterator if the elements should be moved // instead of copied. // Thread-safe. template inline bool try_enqueue_bulk(It itemFirst, size_t count) { if (inner.try_enqueue_bulk(std::forward(itemFirst), count)) { sema->signal((LightweightSemaphore::ssize_t)(ssize_t)count); return true; } return false; } // Enqueues several items using an explicit producer token. // Does not allocate memory. Fails if not enough room to enqueue. // Note: Use std::make_move_iterator if the elements should be moved // instead of copied. // Thread-safe. template inline bool try_enqueue_bulk(producer_token_t const& token, It itemFirst, size_t count) { if (inner.try_enqueue_bulk(token, std::forward(itemFirst), count)) { sema->signal((LightweightSemaphore::ssize_t)(ssize_t)count); return true; } return false; } // Attempts to dequeue from the queue. // Returns false if all producer streams appeared empty at the time they // were checked (so, the queue is likely but not guaranteed to be empty). // Never allocates. Thread-safe. template inline bool try_dequeue(U& item) { if (sema->tryWait()) { while (!inner.try_dequeue(item)) { continue; } return true; } return false; } // Attempts to dequeue from the queue using an explicit consumer token. // Returns false if all producer streams appeared empty at the time they // were checked (so, the queue is likely but not guaranteed to be empty). // Never allocates. Thread-safe. template inline bool try_dequeue(consumer_token_t& token, U& item) { if (sema->tryWait()) { while (!inner.try_dequeue(token, item)) { continue; } return true; } return false; } // Attempts to dequeue several elements from the queue. // Returns the number of items actually dequeued. // Returns 0 if all producer streams appeared empty at the time they // were checked (so, the queue is likely but not guaranteed to be empty). // Never allocates. Thread-safe. template inline size_t try_dequeue_bulk(It itemFirst, size_t max) { size_t count = 0; max = (size_t)sema->tryWaitMany((LightweightSemaphore::ssize_t)(ssize_t)max); while (count != max) { count += inner.template try_dequeue_bulk(itemFirst, max - count); } return count; } // Attempts to dequeue several elements from the queue using an explicit consumer token. // Returns the number of items actually dequeued. // Returns 0 if all producer streams appeared empty at the time they // were checked (so, the queue is likely but not guaranteed to be empty). // Never allocates. Thread-safe. template inline size_t try_dequeue_bulk(consumer_token_t& token, It itemFirst, size_t max) { size_t count = 0; max = (size_t)sema->tryWaitMany((LightweightSemaphore::ssize_t)(ssize_t)max); while (count != max) { count += inner.template try_dequeue_bulk(token, itemFirst, max - count); } return count; } // Blocks the current thread until there's something to dequeue, then // dequeues it. // Never allocates. Thread-safe. template inline void wait_dequeue(U& item) { while (!sema->wait()) { continue; } while (!inner.try_dequeue(item)) { continue; } } // Blocks the current thread until either there's something to dequeue // or the timeout (specified in microseconds) expires. Returns false // without setting `item` if the timeout expires, otherwise assigns // to `item` and returns true. // Using a negative timeout indicates an indefinite timeout, // and is thus functionally equivalent to calling wait_dequeue. // Never allocates. Thread-safe. template inline bool wait_dequeue_timed(U& item, std::int64_t timeout_usecs) { if (!sema->wait(timeout_usecs)) { return false; } while (!inner.try_dequeue(item)) { continue; } return true; } // Blocks the current thread until either there's something to dequeue // or the timeout expires. Returns false without setting `item` if the // timeout expires, otherwise assigns to `item` and returns true. // Never allocates. Thread-safe. template inline bool wait_dequeue_timed(U& item, std::chrono::duration const& timeout) { return wait_dequeue_timed(item, std::chrono::duration_cast(timeout).count()); } // Blocks the current thread until there's something to dequeue, then // dequeues it using an explicit consumer token. // Never allocates. Thread-safe. template inline void wait_dequeue(consumer_token_t& token, U& item) { while (!sema->wait()) { continue; } while (!inner.try_dequeue(token, item)) { continue; } } // Blocks the current thread until either there's something to dequeue // or the timeout (specified in microseconds) expires. Returns false // without setting `item` if the timeout expires, otherwise assigns // to `item` and returns true. // Using a negative timeout indicates an indefinite timeout, // and is thus functionally equivalent to calling wait_dequeue. // Never allocates. Thread-safe. template inline bool wait_dequeue_timed(consumer_token_t& token, U& item, std::int64_t timeout_usecs) { if (!sema->wait(timeout_usecs)) { return false; } while (!inner.try_dequeue(token, item)) { continue; } return true; } // Blocks the current thread until either there's something to dequeue // or the timeout expires. Returns false without setting `item` if the // timeout expires, otherwise assigns to `item` and returns true. // Never allocates. Thread-safe. template inline bool wait_dequeue_timed(consumer_token_t& token, U& item, std::chrono::duration const& timeout) { return wait_dequeue_timed(token, item, std::chrono::duration_cast(timeout).count()); } // Attempts to dequeue several elements from the queue. // Returns the number of items actually dequeued, which will // always be at least one (this method blocks until the queue // is non-empty) and at most max. // Never allocates. Thread-safe. template inline size_t wait_dequeue_bulk(It itemFirst, size_t max) { size_t count = 0; max = (size_t)sema->waitMany((LightweightSemaphore::ssize_t)(ssize_t)max); while (count != max) { count += inner.template try_dequeue_bulk(itemFirst, max - count); } return count; } // Attempts to dequeue several elements from the queue. // Returns the number of items actually dequeued, which can // be 0 if the timeout expires while waiting for elements, // and at most max. // Using a negative timeout indicates an indefinite timeout, // and is thus functionally equivalent to calling wait_dequeue_bulk. // Never allocates. Thread-safe. template inline size_t wait_dequeue_bulk_timed(It itemFirst, size_t max, std::int64_t timeout_usecs) { size_t count = 0; max = (size_t)sema->waitMany((LightweightSemaphore::ssize_t)(ssize_t)max, timeout_usecs); while (count != max) { count += inner.template try_dequeue_bulk(itemFirst, max - count); } return count; } // Attempts to dequeue several elements from the queue. // Returns the number of items actually dequeued, which can // be 0 if the timeout expires while waiting for elements, // and at most max. // Never allocates. Thread-safe. template inline size_t wait_dequeue_bulk_timed(It itemFirst, size_t max, std::chrono::duration const& timeout) { return wait_dequeue_bulk_timed(itemFirst, max, std::chrono::duration_cast(timeout).count()); } // Attempts to dequeue several elements from the queue using an explicit consumer token. // Returns the number of items actually dequeued, which will // always be at least one (this method blocks until the queue // is non-empty) and at most max. // Never allocates. Thread-safe. template inline size_t wait_dequeue_bulk(consumer_token_t& token, It itemFirst, size_t max) { size_t count = 0; max = (size_t)sema->waitMany((LightweightSemaphore::ssize_t)(ssize_t)max); while (count != max) { count += inner.template try_dequeue_bulk(token, itemFirst, max - count); } return count; } // Attempts to dequeue several elements from the queue using an explicit consumer token. // Returns the number of items actually dequeued, which can // be 0 if the timeout expires while waiting for elements, // and at most max. // Using a negative timeout indicates an indefinite timeout, // and is thus functionally equivalent to calling wait_dequeue_bulk. // Never allocates. Thread-safe. template inline size_t wait_dequeue_bulk_timed(consumer_token_t& token, It itemFirst, size_t max, std::int64_t timeout_usecs) { size_t count = 0; max = (size_t)sema->waitMany((LightweightSemaphore::ssize_t)(ssize_t)max, timeout_usecs); while (count != max) { count += inner.template try_dequeue_bulk(token, itemFirst, max - count); } return count; } // Attempts to dequeue several elements from the queue using an explicit consumer token. // Returns the number of items actually dequeued, which can // be 0 if the timeout expires while waiting for elements, // and at most max. // Never allocates. Thread-safe. template inline size_t wait_dequeue_bulk_timed(consumer_token_t& token, It itemFirst, size_t max, std::chrono::duration const& timeout) { return wait_dequeue_bulk_timed(token, itemFirst, max, std::chrono::duration_cast(timeout).count()); } // Returns an estimate of the total number of elements currently in the queue. This // estimate is only accurate if the queue has completely stabilized before it is called // (i.e. all enqueue and dequeue operations have completed and their memory effects are // visible on the calling thread, and no further operations start while this method is // being called). // Thread-safe. inline size_t size_approx() const { return (size_t)sema->availableApprox(); } // Returns true if the underlying atomic variables used by // the queue are lock-free (they should be on most platforms). // Thread-safe. static bool is_lock_free() { return ConcurrentQueue::is_lock_free(); } private: template static inline U* create() { auto p = (Traits::malloc)(sizeof(U)); return p != nullptr ? new (p) U : nullptr; } template static inline U* create(A1&& a1) { auto p = (Traits::malloc)(sizeof(U)); return p != nullptr ? new (p) U(std::forward(a1)) : nullptr; } template static inline void destroy(U* p) { if (p != nullptr) { p->~U(); } (Traits::free)(p); } private: ConcurrentQueue inner; std::unique_ptr sema; }; template inline void swap(BlockingConcurrentQueue& a, BlockingConcurrentQueue& b) MOODYCAMEL_NOEXCEPT { a.swap(b); } } // end namespace moodycamel */ ## duckdb-d1dc88f950d456d72493df452dabdcd13aa413dd/third_party/concurrentqueue/concurrentqueue.h // Provides a C++11 implementation of a multi-producer, multi-consumer lock-free queue. // An overview, including benchmark results, is provided here: // http://moodycamel.com/blog/2014/a-fast-general-purpose-lock-free-queue-for-c++ // The full design is also described in excruciating detail at: // http://moodycamel.com/blog/2014/detailed-design-of-a-lock-free-queue // Simplified BSD license: // Copyright (c) 2013-2016, Cameron Desrochers. // All rights reserved. // // Redistribution and use in source and binary forms, with or without modification, // are permitted provided that the following conditions are met: // // - Redistributions of source code must retain the above copyright notice, this list of // conditions and the following disclaimer. // - Redistributions in binary form must reproduce the above copyright notice, this list of // conditions and the following disclaimer in the documentation and/or other materials // provided with the distribution. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL // THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT // OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) // HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR // TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, // EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #pragma once #if defined(__GNUC__) // Disable -Wconversion warnings (spuriously triggered when Traits::size_t and // Traits::index_t are set to < 32 bits, causing integer promotion, causing warnings // upon assigning any computed values) #endif #if defined(__APPLE__) #include #endif #include // Requires C++11. Sorry VS2010. #include #include // for max_align_t #include #include #include #include #include #include #include // for CHAR_BIT #include #include // partly for __WINPTHREADS_VERSION if on MinGW-w64 w/ POSIX threading // Platform-specific definitions of a numeric thread ID type and an invalid value namespace duckdb_moodycamel { namespace details { template struct thread_id_converter { typedef thread_id_t thread_id_numeric_size_t; typedef thread_id_t thread_id_hash_t; static thread_id_hash_t prehash(thread_id_t const& x) { return x; } }; } } #if defined(MCDBGQ_USE_RELACY) namespace duckdb_moodycamel { namespace details { typedef std::uint32_t thread_id_t; static const thread_id_t invalid_thread_id = 0xFFFFFFFFU; static const thread_id_t invalid_thread_id2 = 0xFFFFFFFEU; static inline thread_id_t thread_id() { return rl::thread_index(); } } } #elif defined(_WIN32) || defined(__WINDOWS__) || defined(__WIN32__) // No sense pulling in windows.h in a header, we'll manually declare the function // we use and rely on backwards-compatibility for this not to break extern "C" __declspec(dllimport) unsigned long __stdcall GetCurrentThreadId(void); namespace duckdb_moodycamel { namespace details { static_assert(sizeof(unsigned long) == sizeof(std::uint32_t), "Expected size of unsigned long to be 32 bits on Windows"); typedef std::uint32_t thread_id_t; static const thread_id_t invalid_thread_id = 0; // See http://blogs.msdn.com/b/oldnewthing/archive/2004/02/23/78395.aspx static const thread_id_t invalid_thread_id2 = 0xFFFFFFFFU; // Not technically guaranteed to be invalid, but is never used in practice. Note that all Win32 thread IDs are presently multiples of 4. static inline thread_id_t thread_id() { return static_cast(::GetCurrentThreadId()); } } } #elif defined(__arm__) || defined(_M_ARM) || defined(__aarch64__) || (defined(__APPLE__) && TARGET_OS_IPHONE) || defined(__MVS__) namespace duckdb_moodycamel { namespace details { static_assert(sizeof(std::thread::id) == 4 || sizeof(std::thread::id) == 8, "std::thread::id is expected to be either 4 or 8 bytes"); typedef std::thread::id thread_id_t; static const thread_id_t invalid_thread_id; // Default ctor creates invalid ID // Note we don't define a invalid_thread_id2 since std::thread::id doesn't have one; it's // only used if MOODYCAMEL_CPP11_THREAD_LOCAL_SUPPORTED is defined anyway, which it won't // be. static inline thread_id_t thread_id() { return std::this_thread::get_id(); } template struct thread_id_size { }; template<> struct thread_id_size<4> { typedef std::uint32_t numeric_t; }; template<> struct thread_id_size<8> { typedef std::uint64_t numeric_t; }; template<> struct thread_id_converter { typedef thread_id_size::numeric_t thread_id_numeric_size_t; #ifndef __APPLE__ typedef std::size_t thread_id_hash_t; #else typedef thread_id_numeric_size_t thread_id_hash_t; #endif static thread_id_hash_t prehash(thread_id_t const& x) { #ifndef __APPLE__ return std::hash()(x); #else return *reinterpret_cast(&x); #endif } }; } } #else // Use a nice trick from this answer: http://stackoverflow.com/a/8438730/21475 // In order to get a numeric thread ID in a platform-independent way, we use a thread-local // static variable's address as a thread identifier :-) #if defined(__GNUC__) || defined(__INTEL_COMPILER) #define MOODYCAMEL_THREADLOCAL __thread #elif defined(_MSC_VER) #define MOODYCAMEL_THREADLOCAL __declspec(thread) #else // Assume C++11 compliant compiler #define MOODYCAMEL_THREADLOCAL thread_local #endif namespace duckdb_moodycamel { namespace details { typedef std::uintptr_t thread_id_t; static const thread_id_t invalid_thread_id = 0; // Address can't be nullptr #ifdef MOODYCAMEL_CPP11_THREAD_LOCAL_SUPPORTED static const thread_id_t invalid_thread_id2 = 1; // Member accesses off a null pointer are also generally invalid. Plus it's not aligned. #endif inline thread_id_t thread_id() { static MOODYCAMEL_THREADLOCAL int x; return reinterpret_cast(&x); } } } #endif // Constexpr if #ifndef MOODYCAMEL_CONSTEXPR_IF #if (defined(_MSC_VER) && defined(_HAS_CXX17) && _HAS_CXX17) || __cplusplus > 201402L #define MOODYCAMEL_CONSTEXPR_IF if constexpr #define MOODYCAMEL_MAYBE_UNUSED [[maybe_unused]] #else #define MOODYCAMEL_CONSTEXPR_IF if #define MOODYCAMEL_MAYBE_UNUSED #endif #endif // Exceptions #ifndef MOODYCAMEL_EXCEPTIONS_ENABLED #if (defined(_MSC_VER) && defined(_CPPUNWIND)) || (defined(__GNUC__) && defined(__EXCEPTIONS)) || (!defined(_MSC_VER) && !defined(__GNUC__)) #define MOODYCAMEL_EXCEPTIONS_ENABLED #endif #endif #ifdef MOODYCAMEL_EXCEPTIONS_ENABLED #define MOODYCAMEL_TRY try #define MOODYCAMEL_CATCH(...) catch(__VA_ARGS__) #define MOODYCAMEL_RETHROW throw #define MOODYCAMEL_THROW(expr) throw (expr) #else #define MOODYCAMEL_TRY MOODYCAMEL_CONSTEXPR_IF (true) #define MOODYCAMEL_CATCH(...) else MOODYCAMEL_CONSTEXPR_IF (false) #define MOODYCAMEL_RETHROW #define MOODYCAMEL_THROW(expr) #endif #ifndef MOODYCAMEL_NOEXCEPT #if !defined(MOODYCAMEL_EXCEPTIONS_ENABLED) #define MOODYCAMEL_NOEXCEPT #define MOODYCAMEL_NOEXCEPT_CTOR(type, valueType, expr) true #define MOODYCAMEL_NOEXCEPT_ASSIGN(type, valueType, expr) true #elif defined(_MSC_VER) && defined(_NOEXCEPT) && _MSC_VER < 1800 // VS2012's std::is_nothrow_[move_]constructible is broken and returns true when it shouldn't :-( // We have to assume *all* non-trivial constructors may throw on VS2012! #define MOODYCAMEL_NOEXCEPT _NOEXCEPT #define MOODYCAMEL_NOEXCEPT_CTOR(type, valueType, expr) (std::is_rvalue_reference::value && std::is_move_constructible::value ? std::is_trivially_move_constructible::value : std::is_trivially_copy_constructible::value) #define MOODYCAMEL_NOEXCEPT_ASSIGN(type, valueType, expr) ((std::is_rvalue_reference::value && std::is_move_assignable::value ? std::is_trivially_move_assignable::value || std::is_nothrow_move_assignable::value : std::is_trivially_copy_assignable::value || std::is_nothrow_copy_assignable::value) && MOODYCAMEL_NOEXCEPT_CTOR(type, valueType, expr)) #elif defined(_MSC_VER) && defined(_NOEXCEPT) && _MSC_VER < 1900 #define MOODYCAMEL_NOEXCEPT _NOEXCEPT #define MOODYCAMEL_NOEXCEPT_CTOR(type, valueType, expr) (std::is_rvalue_reference::value && std::is_move_constructible::value ? std::is_trivially_move_constructible::value || std::is_nothrow_move_constructible::value : std::is_trivially_copy_constructible::value || std::is_nothrow_copy_constructible::value) #define MOODYCAMEL_NOEXCEPT_ASSIGN(type, valueType, expr) ((std::is_rvalue_reference::value && std::is_move_assignable::value ? std::is_trivially_move_assignable::value || std::is_nothrow_move_assignable::value : std::is_trivially_copy_assignable::value || std::is_nothrow_copy_assignable::value) && MOODYCAMEL_NOEXCEPT_CTOR(type, valueType, expr)) #else #define MOODYCAMEL_NOEXCEPT noexcept #define MOODYCAMEL_NOEXCEPT_CTOR(type, valueType, expr) noexcept(expr) #define MOODYCAMEL_NOEXCEPT_ASSIGN(type, valueType, expr) noexcept(expr) #endif #endif #ifndef MOODYCAMEL_CPP11_THREAD_LOCAL_SUPPORTED #ifdef MCDBGQ_USE_RELACY #define MOODYCAMEL_CPP11_THREAD_LOCAL_SUPPORTED #else // VS2013 doesn't support `thread_local`, and MinGW-w64 w/ POSIX threading has a crippling bug: http://sourceforge.net/p/mingw-w64/bugs/445 // g++ <=4.7 doesn't support thread_local either. // Finally, iOS/ARM doesn't have support for it either, and g++/ARM allows it to compile but it's unconfirmed to actually work #if (!defined(_MSC_VER) || _MSC_VER >= 1900) && (!defined(__MINGW32__) && !defined(__MINGW64__) || !defined(__WINPTHREADS_VERSION)) && (!defined(__GNUC__) || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)) && (!defined(__APPLE__) || !TARGET_OS_IPHONE) && !defined(__arm__) && !defined(_M_ARM) && !defined(__aarch64__) && !defined(__MVS__) // Assume `thread_local` is fully supported in all other C++11 compilers/platforms //#define MOODYCAMEL_CPP11_THREAD_LOCAL_SUPPORTED // always disabled for now since several users report having problems with it on #endif #endif #endif // VS2012 doesn't support deleted functions. // In this case, we declare the function normally but don't define it. A link error will be generated if the function is called. #ifndef MOODYCAMEL_DELETE_FUNCTION #if defined(_MSC_VER) && _MSC_VER < 1800 #define MOODYCAMEL_DELETE_FUNCTION #else #define MOODYCAMEL_DELETE_FUNCTION = delete #endif #endif #ifndef MOODYCAMEL_ALIGNAS // VS2013 doesn't support alignas or alignof #if defined(_MSC_VER) && _MSC_VER <= 1800 #define MOODYCAMEL_ALIGNAS(alignment) __declspec(align(alignment)) #define MOODYCAMEL_ALIGNOF(obj) __alignof(obj) #else #define MOODYCAMEL_ALIGNAS(alignment) alignas(alignment) #define MOODYCAMEL_ALIGNOF(obj) alignof(obj) #endif #endif // Compiler-specific likely/unlikely hints namespace duckdb_moodycamel { namespace details { #if defined(__GNUC__) static inline bool (likely)(bool x) { return __builtin_expect((x), true); } // static inline bool (unlikely)(bool x) { return __builtin_expect((x), false); } #else static inline bool (likely)(bool x) { return x; } // static inline bool (unlikely)(bool x) { return x; } #endif } } namespace duckdb_moodycamel { namespace details { template struct const_numeric_max { static_assert(std::is_integral::value, "const_numeric_max can only be used with integers"); static const T value = std::numeric_limits::is_signed ? (static_cast(1) << (sizeof(T) * CHAR_BIT - 1)) - static_cast(1) : static_cast(-1); }; #if defined(__GLIBCXX__) typedef ::max_align_t std_max_align_t; // libstdc++ forgot to add it to std:: for a while #else typedef std::max_align_t std_max_align_t; // Others (e.g. MSVC) insist it can *only* be accessed via std:: #endif // Some platforms have incorrectly set max_align_t to a type with <8 bytes alignment even while supporting // 8-byte aligned scalar values (*cough* 32-bit iOS). Work around this with our own union. See issue #64. typedef union { std_max_align_t x; long long y; void* z; } max_align_t; } // Default traits for the ConcurrentQueue. To change some of the // traits without re-implementing all of them, inherit from this // struct and shadow the declarations you wish to be different; // since the traits are used as a template type parameter, the // shadowed declarations will be used where defined, and the defaults // otherwise. struct ConcurrentQueueDefaultTraits { // General-purpose size type. std::size_t is strongly recommended. typedef std::size_t size_t; // The type used for the enqueue and dequeue indices. Must be at least as // large as size_t. Should be significantly larger than the number of elements // you expect to hold at once, especially if you have a high turnover rate; // for example, on 32-bit x86, if you expect to have over a hundred million // elements or pump several million elements through your queue in a very // short space of time, using a 32-bit type *may* trigger a race condition. // A 64-bit int type is recommended in that case, and in practice will // prevent a race condition no matter the usage of the queue. Note that // whether the queue is lock-free with a 64-int type depends on the whether // std::atomic is lock-free, which is platform-specific. typedef std::size_t index_t; // Internally, all elements are enqueued and dequeued from multi-element // blocks; this is the smallest controllable unit. If you expect few elements // but many producers, a smaller block size should be favoured. For few producers // and/or many elements, a larger block size is preferred. A sane default // is provided. Must be a power of 2. static const size_t BLOCK_SIZE = 32; // For explicit producers (i.e. when using a producer token), the block is // checked for being empty by iterating through a list of flags, one per element. // For large block sizes, this is too inefficient, and switching to an atomic // counter-based approach is faster. The switch is made for block sizes strictly // larger than this threshold. static const size_t EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD = 32; // How many full blocks can be expected for a single explicit producer? This should // reflect that number's maximum for optimal performance. Must be a power of 2. static const size_t EXPLICIT_INITIAL_INDEX_SIZE = 32; // How many full blocks can be expected for a single implicit producer? This should // reflect that number's maximum for optimal performance. Must be a power of 2. static const size_t IMPLICIT_INITIAL_INDEX_SIZE = 32; // The initial size of the hash table mapping thread IDs to implicit producers. // Note that the hash is resized every time it becomes half full. // Must be a power of two, and either 0 or at least 1. If 0, implicit production // (using the enqueue methods without an explicit producer token) is disabled. static const size_t INITIAL_IMPLICIT_PRODUCER_HASH_SIZE = 32; // Controls the number of items that an explicit consumer (i.e. one with a token) // must consume before it causes all consumers to rotate and move on to the next // internal queue. static const std::uint32_t EXPLICIT_CONSUMER_CONSUMPTION_QUOTA_BEFORE_ROTATE = 256; // The maximum number of elements (inclusive) that can be enqueued to a sub-queue. // Enqueue operations that would cause this limit to be surpassed will fail. Note // that this limit is enforced at the block level (for performance reasons), i.e. // it's rounded up to the nearest block size. static const size_t MAX_SUBQUEUE_SIZE = details::const_numeric_max::value; #ifndef MCDBGQ_USE_RELACY // Memory allocation can be customized if needed. // malloc should return nullptr on failure, and handle alignment like std::malloc. #if defined(malloc) || defined(free) // Gah, this is 2015, stop defining macros that break standard code already! // Work around malloc/free being special macros: static inline void* WORKAROUND_malloc(size_t size) { return malloc(size); } static inline void WORKAROUND_free(void* ptr) { return free(ptr); } static inline void* (malloc)(size_t size) { return WORKAROUND_malloc(size); } static inline void (free)(void* ptr) { return WORKAROUND_free(ptr); } #else static inline void* malloc(size_t size) { return std::malloc(size); } static inline void free(void* ptr) { return std::free(ptr); } #endif #else // Debug versions when running under the Relacy race detector (ignore // these in user code) static inline void* malloc(size_t size) { return rl::rl_malloc(size, $); } static inline void free(void* ptr) { return rl::rl_free(ptr, $); } #endif }; // When producing or consuming many elements, the most efficient way is to: // 1) Use one of the bulk-operation methods of the queue with a token // 2) Failing that, use the bulk-operation methods without a token // 3) Failing that, create a token and use that with the single-item methods // 4) Failing that, use the single-parameter methods of the queue // Having said that, don't create tokens willy-nilly -- ideally there should be // a maximum of one token per thread (of each kind). struct ProducerToken; struct ConsumerToken; template class ConcurrentQueue; template class BlockingConcurrentQueue; class ConcurrentQueueTests; namespace details { struct ConcurrentQueueProducerTypelessBase { ConcurrentQueueProducerTypelessBase* next; std::atomic inactive; ProducerToken* token; ConcurrentQueueProducerTypelessBase() : next(nullptr), inactive(false), token(nullptr) { } }; template struct _hash_32_or_64 { static inline std::uint32_t hash(std::uint32_t h) { // MurmurHash3 finalizer -- see https://code.google.com/p/smhasher/source/browse/trunk/MurmurHash3.cpp // Since the thread ID is already unique, all we really want to do is propagate that // uniqueness evenly across all the bits, so that we can use a subset of the bits while // reducing collisions significantly h ^= h >> 16; h *= 0x85ebca6b; h ^= h >> 13; h *= 0xc2b2ae35; return h ^ (h >> 16); } }; template<> struct _hash_32_or_64<1> { static inline std::uint64_t hash(std::uint64_t h) { h ^= h >> 33; h *= 0xff51afd7ed558ccd; h ^= h >> 33; h *= 0xc4ceb9fe1a85ec53; return h ^ (h >> 33); } }; template struct hash_32_or_64 : public _hash_32_or_64<(size > 4)> { }; static inline size_t hash_thread_id(thread_id_t id) { static_assert(sizeof(thread_id_t) <= 8, "Expected a platform where thread IDs are at most 64-bit values"); return static_cast(hash_32_or_64::thread_id_hash_t)>::hash( thread_id_converter::prehash(id))); } template static inline bool circular_less_than(T a, T b) { #ifdef _MSC_VER #pragma warning(push) #pragma warning(disable: 4554) #endif static_assert(std::is_integral::value && !std::numeric_limits::is_signed, "circular_less_than is intended to be used only with unsigned integer types"); return static_cast(a - b) > static_cast(static_cast(1) << static_cast(sizeof(T) * CHAR_BIT - 1)); #ifdef _MSC_VER #pragma warning(pop) #endif } template static inline char* align_for(char* ptr) { const std::size_t alignment = std::alignment_of::value; return ptr + (alignment - (reinterpret_cast(ptr) % alignment)) % alignment; } template static inline T ceil_to_pow_2(T x) { static_assert(std::is_integral::value && !std::numeric_limits::is_signed, "ceil_to_pow_2 is intended to be used only with unsigned integer types"); // Adapted from http://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2 --x; x |= x >> 1; x |= x >> 2; x |= x >> 4; for (std::size_t i = 1; i < sizeof(T); i <<= 1) { x |= x >> (i << 3); } ++x; return x; } template static inline void swap_relaxed(std::atomic& left, std::atomic& right) { T temp = std::move(left.load(std::memory_order_relaxed)); left.store(std::move(right.load(std::memory_order_relaxed)), std::memory_order_relaxed); right.store(std::move(temp), std::memory_order_relaxed); } template static inline T const& nomove(T const& x) { return x; } template struct nomove_if { template static inline T const& eval(T const& x) { return x; } }; template<> struct nomove_if { template static inline auto eval(U&& x) -> decltype(std::forward(x)) { return std::forward(x); } }; template static inline auto deref_noexcept(It& it) MOODYCAMEL_NOEXCEPT -> decltype(*it) { return *it; } #if defined(__clang__) || !defined(__GNUC__) || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8) template struct is_trivially_destructible : std::is_trivially_destructible { }; #else template struct is_trivially_destructible : std::has_trivial_destructor { }; #endif #ifdef MOODYCAMEL_CPP11_THREAD_LOCAL_SUPPORTED #ifdef MCDBGQ_USE_RELACY typedef RelacyThreadExitListener ThreadExitListener; typedef RelacyThreadExitNotifier ThreadExitNotifier; #else struct ThreadExitListener { typedef void (*callback_t)(void*); callback_t callback; void* userData; ThreadExitListener* next; // reserved for use by the ThreadExitNotifier }; class ThreadExitNotifier { public: static void subscribe(ThreadExitListener* listener) { auto& tlsInst = instance(); listener->next = tlsInst.tail; tlsInst.tail = listener; } static void unsubscribe(ThreadExitListener* listener) { auto& tlsInst = instance(); ThreadExitListener** prev = &tlsInst.tail; for (auto ptr = tlsInst.tail; ptr != nullptr; ptr = ptr->next) { if (ptr == listener) { *prev = ptr->next; break; } prev = &ptr->next; } } private: ThreadExitNotifier() : tail(nullptr) { } ThreadExitNotifier(ThreadExitNotifier const&) MOODYCAMEL_DELETE_FUNCTION; ThreadExitNotifier& operator=(ThreadExitNotifier const&) MOODYCAMEL_DELETE_FUNCTION; ~ThreadExitNotifier() { // This thread is about to exit, let everyone know! assert(this == &instance() && "If this assert fails, you likely have a buggy compiler! Change the preprocessor conditions such that MOODYCAMEL_CPP11_THREAD_LOCAL_SUPPORTED is no longer defined."); for (auto ptr = tail; ptr != nullptr; ptr = ptr->next) { ptr->callback(ptr->userData); } } // Thread-local static inline ThreadExitNotifier& instance() { static thread_local ThreadExitNotifier notifier; return notifier; } private: ThreadExitListener* tail; }; #endif #endif template struct static_is_lock_free_num { enum { value = 0 }; }; template<> struct static_is_lock_free_num { enum { value = ATOMIC_CHAR_LOCK_FREE }; }; template<> struct static_is_lock_free_num { enum { value = ATOMIC_SHORT_LOCK_FREE }; }; template<> struct static_is_lock_free_num { enum { value = ATOMIC_INT_LOCK_FREE }; }; template<> struct static_is_lock_free_num { enum { value = ATOMIC_LONG_LOCK_FREE }; }; template<> struct static_is_lock_free_num { enum { value = ATOMIC_LLONG_LOCK_FREE }; }; template struct static_is_lock_free : static_is_lock_free_num::type> { }; template<> struct static_is_lock_free { enum { value = ATOMIC_BOOL_LOCK_FREE }; }; template struct static_is_lock_free { enum { value = ATOMIC_POINTER_LOCK_FREE }; }; } struct ProducerToken { template explicit ProducerToken(ConcurrentQueue& queue); template explicit ProducerToken(BlockingConcurrentQueue& queue); ProducerToken(ProducerToken&& other) MOODYCAMEL_NOEXCEPT : producer(other.producer) { other.producer = nullptr; if (producer != nullptr) { producer->token = this; } } inline ProducerToken& operator=(ProducerToken&& other) MOODYCAMEL_NOEXCEPT { swap(other); return *this; } void swap(ProducerToken& other) MOODYCAMEL_NOEXCEPT { std::swap(producer, other.producer); if (producer != nullptr) { producer->token = this; } if (other.producer != nullptr) { other.producer->token = &other; } } // A token is always valid unless: // 1) Memory allocation failed during construction // 2) It was moved via the move constructor // (Note: assignment does a swap, leaving both potentially valid) // 3) The associated queue was destroyed // Note that if valid() returns true, that only indicates // that the token is valid for use with a specific queue, // but not which one; that's up to the user to track. inline bool valid() const { return producer != nullptr; } ~ProducerToken() { if (producer != nullptr) { producer->token = nullptr; producer->inactive.store(true, std::memory_order_release); } } // Disable copying and assignment ProducerToken(ProducerToken const&) MOODYCAMEL_DELETE_FUNCTION; ProducerToken& operator=(ProducerToken const&) MOODYCAMEL_DELETE_FUNCTION; private: template friend class ConcurrentQueue; friend class ConcurrentQueueTests; protected: details::ConcurrentQueueProducerTypelessBase* producer; }; struct ConsumerToken { template explicit ConsumerToken(ConcurrentQueue& q); template explicit ConsumerToken(BlockingConcurrentQueue& q); ConsumerToken(ConsumerToken&& other) MOODYCAMEL_NOEXCEPT : initialOffset(other.initialOffset), lastKnownGlobalOffset(other.lastKnownGlobalOffset), itemsConsumedFromCurrent(other.itemsConsumedFromCurrent), currentProducer(other.currentProducer), desiredProducer(other.desiredProducer) { } inline ConsumerToken& operator=(ConsumerToken&& other) MOODYCAMEL_NOEXCEPT { swap(other); return *this; } void swap(ConsumerToken& other) MOODYCAMEL_NOEXCEPT { std::swap(initialOffset, other.initialOffset); std::swap(lastKnownGlobalOffset, other.lastKnownGlobalOffset); std::swap(itemsConsumedFromCurrent, other.itemsConsumedFromCurrent); std::swap(currentProducer, other.currentProducer); std::swap(desiredProducer, other.desiredProducer); } // Disable copying and assignment ConsumerToken(ConsumerToken const&) MOODYCAMEL_DELETE_FUNCTION; ConsumerToken& operator=(ConsumerToken const&) MOODYCAMEL_DELETE_FUNCTION; private: template friend class ConcurrentQueue; friend class ConcurrentQueueTests; private: // but shared with ConcurrentQueue std::uint32_t initialOffset; std::uint32_t lastKnownGlobalOffset; std::uint32_t itemsConsumedFromCurrent; details::ConcurrentQueueProducerTypelessBase* currentProducer; details::ConcurrentQueueProducerTypelessBase* desiredProducer; }; // Need to forward-declare this swap because it's in a namespace. // See http://stackoverflow.com/questions/4492062/why-does-a-c-friend-class-need-a-forward-declaration-only-in-other-namespaces template inline void swap(typename ConcurrentQueue::ImplicitProducerKVP& a, typename ConcurrentQueue::ImplicitProducerKVP& b) MOODYCAMEL_NOEXCEPT; template class ConcurrentQueue { public: typedef ::duckdb_moodycamel::ProducerToken producer_token_t; typedef ::duckdb_moodycamel::ConsumerToken consumer_token_t; typedef typename Traits::index_t index_t; typedef typename Traits::size_t size_t; static const size_t BLOCK_SIZE = static_cast(Traits::BLOCK_SIZE); static const size_t EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD = static_cast(Traits::EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD); static const size_t EXPLICIT_INITIAL_INDEX_SIZE = static_cast(Traits::EXPLICIT_INITIAL_INDEX_SIZE); static const size_t IMPLICIT_INITIAL_INDEX_SIZE = static_cast(Traits::IMPLICIT_INITIAL_INDEX_SIZE); static const size_t INITIAL_IMPLICIT_PRODUCER_HASH_SIZE = static_cast(Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE); static const std::uint32_t EXPLICIT_CONSUMER_CONSUMPTION_QUOTA_BEFORE_ROTATE = static_cast(Traits::EXPLICIT_CONSUMER_CONSUMPTION_QUOTA_BEFORE_ROTATE); #ifdef _MSC_VER #pragma warning(push) #pragma warning(disable: 4307) // + integral constant overflow (that's what the ternary expression is for!) #pragma warning(disable: 4309) // static_cast: Truncation of constant value #endif static const size_t MAX_SUBQUEUE_SIZE = (details::const_numeric_max::value - static_cast(Traits::MAX_SUBQUEUE_SIZE) < BLOCK_SIZE) ? details::const_numeric_max::value : ((static_cast(Traits::MAX_SUBQUEUE_SIZE) + (BLOCK_SIZE - 1)) / BLOCK_SIZE * BLOCK_SIZE); #ifdef _MSC_VER #pragma warning(pop) #endif static_assert(!std::numeric_limits::is_signed && std::is_integral::value, "Traits::size_t must be an unsigned integral type"); static_assert(!std::numeric_limits::is_signed && std::is_integral::value, "Traits::index_t must be an unsigned integral type"); static_assert(sizeof(index_t) >= sizeof(size_t), "Traits::index_t must be at least as wide as Traits::size_t"); static_assert((BLOCK_SIZE > 1) && !(BLOCK_SIZE & (BLOCK_SIZE - 1)), "Traits::BLOCK_SIZE must be a power of 2 (and at least 2)"); static_assert((EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD > 1) && !(EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD & (EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD - 1)), "Traits::EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD must be a power of 2 (and greater than 1)"); static_assert((EXPLICIT_INITIAL_INDEX_SIZE > 1) && !(EXPLICIT_INITIAL_INDEX_SIZE & (EXPLICIT_INITIAL_INDEX_SIZE - 1)), "Traits::EXPLICIT_INITIAL_INDEX_SIZE must be a power of 2 (and greater than 1)"); static_assert((IMPLICIT_INITIAL_INDEX_SIZE > 1) && !(IMPLICIT_INITIAL_INDEX_SIZE & (IMPLICIT_INITIAL_INDEX_SIZE - 1)), "Traits::IMPLICIT_INITIAL_INDEX_SIZE must be a power of 2 (and greater than 1)"); static_assert((INITIAL_IMPLICIT_PRODUCER_HASH_SIZE == 0) || !(INITIAL_IMPLICIT_PRODUCER_HASH_SIZE & (INITIAL_IMPLICIT_PRODUCER_HASH_SIZE - 1)), "Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE must be a power of 2"); static_assert(INITIAL_IMPLICIT_PRODUCER_HASH_SIZE == 0 || INITIAL_IMPLICIT_PRODUCER_HASH_SIZE >= 1, "Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE must be at least 1 (or 0 to disable implicit enqueueing)"); public: // Creates a queue with at least `capacity` element slots; note that the // actual number of elements that can be inserted without additional memory // allocation depends on the number of producers and the block size (e.g. if // the block size is equal to `capacity`, only a single block will be allocated // up-front, which means only a single producer will be able to enqueue elements // without an extra allocation -- blocks aren't shared between producers). // This method is not thread safe -- it is up to the user to ensure that the // queue is fully constructed before it starts being used by other threads (this // includes making the memory effects of construction visible, possibly with a // memory barrier). explicit ConcurrentQueue(size_t capacity = 6 * BLOCK_SIZE) : producerListTail(nullptr), producerCount(0), initialBlockPoolIndex(0), nextExplicitConsumerId(0), globalExplicitConsumerOffset(0) { implicitProducerHashResizeInProgress.clear(std::memory_order_relaxed); populate_initial_implicit_producer_hash(); populate_initial_block_list(capacity / BLOCK_SIZE + ((capacity & (BLOCK_SIZE - 1)) == 0 ? 0 : 1)); #ifdef MOODYCAMEL_QUEUE_INTERNAL_DEBUG // Track all the producers using a fully-resolved typed list for // each kind; this makes it possible to debug them starting from // the root queue object (otherwise wacky casts are needed that // don't compile in the debugger's expression evaluator). explicitProducers.store(nullptr, std::memory_order_relaxed); implicitProducers.store(nullptr, std::memory_order_relaxed); #endif } // Computes the correct amount of pre-allocated blocks for you based // on the minimum number of elements you want available at any given // time, and the maximum concurrent number of each type of producer. ConcurrentQueue(size_t minCapacity, size_t maxExplicitProducers, size_t maxImplicitProducers) : producerListTail(nullptr), producerCount(0), initialBlockPoolIndex(0), nextExplicitConsumerId(0), globalExplicitConsumerOffset(0) { implicitProducerHashResizeInProgress.clear(std::memory_order_relaxed); populate_initial_implicit_producer_hash(); size_t blocks = (((minCapacity + BLOCK_SIZE - 1) / BLOCK_SIZE) - 1) * (maxExplicitProducers + 1) + 2 * (maxExplicitProducers + maxImplicitProducers); populate_initial_block_list(blocks); #ifdef MOODYCAMEL_QUEUE_INTERNAL_DEBUG explicitProducers.store(nullptr, std::memory_order_relaxed); implicitProducers.store(nullptr, std::memory_order_relaxed); #endif } // Note: The queue should not be accessed concurrently while it's // being deleted. It's up to the user to synchronize this. // This method is not thread safe. ~ConcurrentQueue() { // Destroy producers auto ptr = producerListTail.load(std::memory_order_relaxed); while (ptr != nullptr) { auto next = ptr->next_prod(); if (ptr->token != nullptr) { ptr->token->producer = nullptr; } destroy(ptr); ptr = next; } // Destroy implicit producer hash tables MOODYCAMEL_CONSTEXPR_IF (INITIAL_IMPLICIT_PRODUCER_HASH_SIZE != 0) { auto hash = implicitProducerHash.load(std::memory_order_relaxed); while (hash != nullptr) { auto prev = hash->prev; if (prev != nullptr) { // The last hash is part of this object and was not allocated dynamically for (size_t i = 0; i != hash->capacity; ++i) { hash->entries[i].~ImplicitProducerKVP(); } hash->~ImplicitProducerHash(); (Traits::free)(hash); } hash = prev; } } // Destroy global free list auto block = freeList.head_unsafe(); while (block != nullptr) { auto next = block->freeListNext.load(std::memory_order_relaxed); if (block->dynamicallyAllocated) { destroy(block); } block = next; } // Destroy initial free list destroy_array(initialBlockPool, initialBlockPoolSize); } // Disable copying and copy assignment ConcurrentQueue(ConcurrentQueue const&) MOODYCAMEL_DELETE_FUNCTION; ConcurrentQueue& operator=(ConcurrentQueue const&) MOODYCAMEL_DELETE_FUNCTION; // Moving is supported, but note that it is *not* a thread-safe operation. // Nobody can use the queue while it's being moved, and the memory effects // of that move must be propagated to other threads before they can use it. // Note: When a queue is moved, its tokens are still valid but can only be // used with the destination queue (i.e. semantically they are moved along // with the queue itself). ConcurrentQueue(ConcurrentQueue&& other) MOODYCAMEL_NOEXCEPT : producerListTail(other.producerListTail.load(std::memory_order_relaxed)), producerCount(other.producerCount.load(std::memory_order_relaxed)), initialBlockPoolIndex(other.initialBlockPoolIndex.load(std::memory_order_relaxed)), initialBlockPool(other.initialBlockPool), initialBlockPoolSize(other.initialBlockPoolSize), freeList(std::move(other.freeList)), nextExplicitConsumerId(other.nextExplicitConsumerId.load(std::memory_order_relaxed)), globalExplicitConsumerOffset(other.globalExplicitConsumerOffset.load(std::memory_order_relaxed)) { // Move the other one into this, and leave the other one as an empty queue implicitProducerHashResizeInProgress.clear(std::memory_order_relaxed); populate_initial_implicit_producer_hash(); swap_implicit_producer_hashes(other); other.producerListTail.store(nullptr, std::memory_order_relaxed); other.producerCount.store(0, std::memory_order_relaxed); other.nextExplicitConsumerId.store(0, std::memory_order_relaxed); other.globalExplicitConsumerOffset.store(0, std::memory_order_relaxed); #ifdef MOODYCAMEL_QUEUE_INTERNAL_DEBUG explicitProducers.store(other.explicitProducers.load(std::memory_order_relaxed), std::memory_order_relaxed); other.explicitProducers.store(nullptr, std::memory_order_relaxed); implicitProducers.store(other.implicitProducers.load(std::memory_order_relaxed), std::memory_order_relaxed); other.implicitProducers.store(nullptr, std::memory_order_relaxed); #endif other.initialBlockPoolIndex.store(0, std::memory_order_relaxed); other.initialBlockPoolSize = 0; other.initialBlockPool = nullptr; reown_producers(); } inline ConcurrentQueue& operator=(ConcurrentQueue&& other) MOODYCAMEL_NOEXCEPT { return swap_internal(other); } // Swaps this queue's state with the other's. Not thread-safe. // Swapping two queues does not invalidate their tokens, however // the tokens that were created for one queue must be used with // only the swapped queue (i.e. the tokens are tied to the // queue's movable state, not the object itself). inline void swap(ConcurrentQueue& other) MOODYCAMEL_NOEXCEPT { swap_internal(other); } private: ConcurrentQueue& swap_internal(ConcurrentQueue& other) { if (this == &other) { return *this; } details::swap_relaxed(producerListTail, other.producerListTail); details::swap_relaxed(producerCount, other.producerCount); details::swap_relaxed(initialBlockPoolIndex, other.initialBlockPoolIndex); std::swap(initialBlockPool, other.initialBlockPool); std::swap(initialBlockPoolSize, other.initialBlockPoolSize); freeList.swap(other.freeList); details::swap_relaxed(nextExplicitConsumerId, other.nextExplicitConsumerId); details::swap_relaxed(globalExplicitConsumerOffset, other.globalExplicitConsumerOffset); swap_implicit_producer_hashes(other); reown_producers(); other.reown_producers(); #ifdef MOODYCAMEL_QUEUE_INTERNAL_DEBUG details::swap_relaxed(explicitProducers, other.explicitProducers); details::swap_relaxed(implicitProducers, other.implicitProducers); #endif return *this; } public: // Enqueues a single item (by copying it). // Allocates memory if required. Only fails if memory allocation fails (or implicit // production is disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE is 0, // or Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Thread-safe. inline bool enqueue(T const& item) { MOODYCAMEL_CONSTEXPR_IF (INITIAL_IMPLICIT_PRODUCER_HASH_SIZE == 0) return false; else return inner_enqueue(item); } // Enqueues a single item (by moving it, if possible). // Allocates memory if required. Only fails if memory allocation fails (or implicit // production is disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE is 0, // or Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Thread-safe. inline bool enqueue(T&& item) { MOODYCAMEL_CONSTEXPR_IF (INITIAL_IMPLICIT_PRODUCER_HASH_SIZE == 0) return false; else return inner_enqueue(std::move(item)); } // Enqueues a single item (by copying it) using an explicit producer token. // Allocates memory if required. Only fails if memory allocation fails (or // Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Thread-safe. inline bool enqueue(producer_token_t const& token, T const& item) { return inner_enqueue(token, item); } // Enqueues a single item (by moving it, if possible) using an explicit producer token. // Allocates memory if required. Only fails if memory allocation fails (or // Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Thread-safe. inline bool enqueue(producer_token_t const& token, T&& item) { return inner_enqueue(token, std::move(item)); } // Enqueues several items. // Allocates memory if required. Only fails if memory allocation fails (or // implicit production is disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE // is 0, or Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Note: Use std::make_move_iterator if the elements should be moved instead of copied. // Thread-safe. template bool enqueue_bulk(It itemFirst, size_t count) { MOODYCAMEL_CONSTEXPR_IF (INITIAL_IMPLICIT_PRODUCER_HASH_SIZE == 0) return false; else return inner_enqueue_bulk(itemFirst, count); } // Enqueues several items using an explicit producer token. // Allocates memory if required. Only fails if memory allocation fails // (or Traits::MAX_SUBQUEUE_SIZE has been defined and would be surpassed). // Note: Use std::make_move_iterator if the elements should be moved // instead of copied. // Thread-safe. template bool enqueue_bulk(producer_token_t const& token, It itemFirst, size_t count) { return inner_enqueue_bulk(token, itemFirst, count); } // Enqueues a single item (by copying it). // Does not allocate memory. Fails if not enough room to enqueue (or implicit // production is disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE // is 0). // Thread-safe. inline bool try_enqueue(T const& item) { MOODYCAMEL_CONSTEXPR_IF (INITIAL_IMPLICIT_PRODUCER_HASH_SIZE == 0) return false; else return inner_enqueue(item); } // Enqueues a single item (by moving it, if possible). // Does not allocate memory (except for one-time implicit producer). // Fails if not enough room to enqueue (or implicit production is // disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE is 0). // Thread-safe. inline bool try_enqueue(T&& item) { MOODYCAMEL_CONSTEXPR_IF (INITIAL_IMPLICIT_PRODUCER_HASH_SIZE == 0) return false; else return inner_enqueue(std::move(item)); } // Enqueues a single item (by copying it) using an explicit producer token. // Does not allocate memory. Fails if not enough room to enqueue. // Thread-safe. inline bool try_enqueue(producer_token_t const& token, T const& item) { return inner_enqueue(token, item); } // Enqueues a single item (by moving it, if possible) using an explicit producer token. // Does not allocate memory. Fails if not enough room to enqueue. // Thread-safe. inline bool try_enqueue(producer_token_t const& token, T&& item) { return inner_enqueue(token, std::move(item)); } // Enqueues several items. // Does not allocate memory (except for one-time implicit producer). // Fails if not enough room to enqueue (or implicit production is // disabled because Traits::INITIAL_IMPLICIT_PRODUCER_HASH_SIZE is 0). // Note: Use std::make_move_iterator if the elements should be moved // instead of copied. // Thread-safe. template bool try_enqueue_bulk(It itemFirst, size_t count) { MOODYCAMEL_CONSTEXPR_IF (INITIAL_IMPLICIT_PRODUCER_HASH_SIZE == 0) return false; else return inner_enqueue_bulk(itemFirst, count); } // Enqueues several items using an explicit producer token. // Does not allocate memory. Fails if not enough room to enqueue. // Note: Use std::make_move_iterator if the elements should be moved // instead of copied. // Thread-safe. template bool try_enqueue_bulk(producer_token_t const& token, It itemFirst, size_t count) { return inner_enqueue_bulk(token, itemFirst, count); } // Attempts to dequeue from the queue. // Returns false if all producer streams appeared empty at the time they // were checked (so, the queue is likely but not guaranteed to be empty). // Never allocates. Thread-safe. template bool try_dequeue(U& item) { // Instead of simply trying each producer in turn (which could cause needless contention on the first // producer), we score them heuristically. size_t nonEmptyCount = 0; ProducerBase* best = nullptr; size_t bestSize = 0; for (auto ptr = producerListTail.load(std::memory_order_acquire); nonEmptyCount < 3 && ptr != nullptr; ptr = ptr->next_prod()) { auto size = ptr->size_approx(); if (size > 0) { if (size > bestSize) { bestSize = size; best = ptr; } ++nonEmptyCount; } } // If there was at least one non-empty queue but it appears empty at the time // we try to dequeue from it, we need to make sure every queue's been tried if (nonEmptyCount > 0) { if ((details::likely)(best->dequeue(item))) { return true; } for (auto ptr = producerListTail.load(std::memory_order_acquire); ptr != nullptr; ptr = ptr->next_prod()) { if (ptr != best && ptr->dequeue(item)) { return true; } } } return false; } // Attempts to dequeue from the queue. // Returns false if all producer streams appeared empty at the time they // were checked (so, the queue is likely but not guaranteed to be empty). // This differs from the try_dequeue(item) method in that this one does // not attempt to reduce contention by interleaving the order that producer // streams are dequeued from. So, using this method can reduce overall throughput // under contention, but will give more predictable results in single-threaded // consumer scenarios. This is mostly only useful for internal unit tests. // Never allocates. Thread-safe. template bool try_dequeue_non_interleaved(U& item) { for (auto ptr = producerListTail.load(std::memory_order_acquire); ptr != nullptr; ptr = ptr->next_prod()) { if (ptr->dequeue(item)) { return true; } } return false; } // Attempts to dequeue from the queue using an explicit consumer token. // Returns false if all producer streams appeared empty at the time they // were checked (so, the queue is likely but not guaranteed to be empty). // Never allocates. Thread-safe. template bool try_dequeue(consumer_token_t& token, U& item) { // The idea is roughly as follows: // Every 256 items from one producer, make everyone rotate (increase the global offset) -> this means the highest efficiency consumer dictates the rotation speed of everyone else, more or less // If you see that the global offset has changed, you must reset your consumption counter and move to your designated place // If there's no items where you're supposed to be, keep moving until you find a producer with some items // If the global offset has not changed but you've run out of items to consume, move over from your current position until you find an producer with something in it if (token.desiredProducer == nullptr || token.lastKnownGlobalOffset != globalExplicitConsumerOffset.load(std::memory_order_relaxed)) { if (!update_current_producer_after_rotation(token)) { return false; } } // If there was at least one non-empty queue but it appears empty at the time // we try to dequeue from it, we need to make sure every queue's been tried if (static_cast(token.currentProducer)->dequeue(item)) { if (++token.itemsConsumedFromCurrent == EXPLICIT_CONSUMER_CONSUMPTION_QUOTA_BEFORE_ROTATE) { globalExplicitConsumerOffset.fetch_add(1, std::memory_order_relaxed); } return true; } auto tail = producerListTail.load(std::memory_order_acquire); auto ptr = static_cast(token.currentProducer)->next_prod(); if (ptr == nullptr) { ptr = tail; } while (ptr != static_cast(token.currentProducer)) { if (ptr->dequeue(item)) { token.currentProducer = ptr; token.itemsConsumedFromCurrent = 1; return true; } ptr = ptr->next_prod(); if (ptr == nullptr) { ptr = tail; } } return false; } // Attempts to dequeue several elements from the queue. // Returns the number of items actually dequeued. // Returns 0 if all producer streams appeared empty at the time they // were checked (so, the queue is likely but not guaranteed to be empty). // Never allocates. Thread-safe. template size_t try_dequeue_bulk(It itemFirst, size_t max) { size_t count = 0; for (auto ptr = producerListTail.load(std::memory_order_acquire); ptr != nullptr; ptr = ptr->next_prod()) { count += ptr->dequeue_bulk(itemFirst, max - count); if (count == max) { break; } } return count; } // Attempts to dequeue several elements from the queue using an explicit consumer token. // Returns the number of items actually dequeued. // Returns 0 if all producer streams appeared empty at the time they // were checked (so, the queue is likely but not guaranteed to be empty). // Never allocates. Thread-safe. template size_t try_dequeue_bulk(consumer_token_t& token, It itemFirst, size_t max) { if (token.desiredProducer == nullptr || token.lastKnownGlobalOffset != globalExplicitConsumerOffset.load(std::memory_order_relaxed)) { if (!update_current_producer_after_rotation(token)) { return 0; } } size_t count = static_cast(token.currentProducer)->dequeue_bulk(itemFirst, max); if (count == max) { if ((token.itemsConsumedFromCurrent += static_cast(max)) >= EXPLICIT_CONSUMER_CONSUMPTION_QUOTA_BEFORE_ROTATE) { globalExplicitConsumerOffset.fetch_add(1, std::memory_order_relaxed); } return max; } token.itemsConsumedFromCurrent += static_cast(count); max -= count; auto tail = producerListTail.load(std::memory_order_acquire); auto ptr = static_cast(token.currentProducer)->next_prod(); if (ptr == nullptr) { ptr = tail; } while (ptr != static_cast(token.currentProducer)) { auto dequeued = ptr->dequeue_bulk(itemFirst, max); count += dequeued; if (dequeued != 0) { token.currentProducer = ptr; token.itemsConsumedFromCurrent = static_cast(dequeued); } if (dequeued == max) { break; } max -= dequeued; ptr = ptr->next_prod(); if (ptr == nullptr) { ptr = tail; } } return count; } // Attempts to dequeue from a specific producer's inner queue. // If you happen to know which producer you want to dequeue from, this // is significantly faster than using the general-case try_dequeue methods. // Returns false if the producer's queue appeared empty at the time it // was checked (so, the queue is likely but not guaranteed to be empty). // Never allocates. Thread-safe. template inline bool try_dequeue_from_producer(producer_token_t const& producer, U& item) { return static_cast(producer.producer)->dequeue(item); } // Attempts to dequeue several elements from a specific producer's inner queue. // Returns the number of items actually dequeued. // If you happen to know which producer you want to dequeue from, this // is significantly faster than using the general-case try_dequeue methods. // Returns 0 if the producer's queue appeared empty at the time it // was checked (so, the queue is likely but not guaranteed to be empty). // Never allocates. Thread-safe. template inline size_t try_dequeue_bulk_from_producer(producer_token_t const& producer, It itemFirst, size_t max) { return static_cast(producer.producer)->dequeue_bulk(itemFirst, max); } // Returns an estimate of the total number of elements currently in the queue. This // estimate is only accurate if the queue has completely stabilized before it is called // (i.e. all enqueue and dequeue operations have completed and their memory effects are // visible on the calling thread, and no further operations start while this method is // being called). // Thread-safe. size_t size_approx() const { size_t size = 0; for (auto ptr = producerListTail.load(std::memory_order_acquire); ptr != nullptr; ptr = ptr->next_prod()) { size += ptr->size_approx(); } return size; } // Returns the number of producers currently associated with the queue. size_t size_producers_approx() const { size_t size = 0; for (auto ptr = producerListTail.load(std::memory_order_acquire); ptr != nullptr; ptr = ptr->next_prod()) { size += 1; } return size; } // Returns the number of elements currently in the queue for a specific producer. size_t size_producer_approx(producer_token_t const& producer) const { return static_cast(producer.producer)->size_approx(); } // Returns true if the underlying atomic variables used by // the queue are lock-free (they should be on most platforms). // Thread-safe. static bool is_lock_free() { return details::static_is_lock_free::value == 2 && details::static_is_lock_free::value == 2 && details::static_is_lock_free::value == 2 && details::static_is_lock_free::value == 2 && details::static_is_lock_free::value == 2 && details::static_is_lock_free::thread_id_numeric_size_t>::value == 2; } private: friend struct ProducerToken; friend struct ConsumerToken; struct ExplicitProducer; friend struct ExplicitProducer; struct ImplicitProducer; friend struct ImplicitProducer; friend class ConcurrentQueueTests; enum AllocationMode { CanAlloc, CannotAlloc }; /////////////////////////////// // Queue methods /////////////////////////////// template inline bool inner_enqueue(producer_token_t const& token, U&& element) { return static_cast(token.producer)->ConcurrentQueue::ExplicitProducer::template enqueue(std::forward(element)); } template inline bool inner_enqueue(U&& element) { auto producer = get_or_add_implicit_producer(); return producer == nullptr ? false : producer->ConcurrentQueue::ImplicitProducer::template enqueue(std::forward(element)); } template inline bool inner_enqueue_bulk(producer_token_t const& token, It itemFirst, size_t count) { return static_cast(token.producer)->ConcurrentQueue::ExplicitProducer::template enqueue_bulk(itemFirst, count); } template inline bool inner_enqueue_bulk(It itemFirst, size_t count) { auto producer = get_or_add_implicit_producer(); return producer == nullptr ? false : producer->ConcurrentQueue::ImplicitProducer::template enqueue_bulk(itemFirst, count); } inline bool update_current_producer_after_rotation(consumer_token_t& token) { // Ah, there's been a rotation, figure out where we should be! auto tail = producerListTail.load(std::memory_order_acquire); if (token.desiredProducer == nullptr && tail == nullptr) { return false; } auto prodCount = producerCount.load(std::memory_order_relaxed); auto globalOffset = globalExplicitConsumerOffset.load(std::memory_order_relaxed); if (token.desiredProducer == nullptr) { // Aha, first time we're dequeueing anything. // Figure out our local position // Note: offset is from start, not end, but we're traversing from end -- subtract from count first std::uint32_t offset = prodCount - 1 - (token.initialOffset % prodCount); token.desiredProducer = tail; for (std::uint32_t i = 0; i != offset; ++i) { token.desiredProducer = static_cast(token.desiredProducer)->next_prod(); if (token.desiredProducer == nullptr) { token.desiredProducer = tail; } } } std::uint32_t delta = globalOffset - token.lastKnownGlobalOffset; if (delta >= prodCount) { delta = delta % prodCount; } for (std::uint32_t i = 0; i != delta; ++i) { token.desiredProducer = static_cast(token.desiredProducer)->next_prod(); if (token.desiredProducer == nullptr) { token.desiredProducer = tail; } } token.lastKnownGlobalOffset = globalOffset; token.currentProducer = token.desiredProducer; token.itemsConsumedFromCurrent = 0; return true; } /////////////////////////// // Free list /////////////////////////// template struct FreeListNode { FreeListNode() : freeListRefs(0), freeListNext(nullptr) { } std::atomic freeListRefs; std::atomic freeListNext; }; // A simple CAS-based lock-free free list. Not the fastest thing in the world under heavy contention, but // simple and correct (assuming nodes are never freed until after the free list is destroyed), and fairly // speedy under low contention. template // N must inherit FreeListNode or have the same fields (and initialization of them) struct FreeList { FreeList() : freeListHead(nullptr) { } FreeList(FreeList&& other) : freeListHead(other.freeListHead.load(std::memory_order_relaxed)) { other.freeListHead.store(nullptr, std::memory_order_relaxed); } void swap(FreeList& other) { details::swap_relaxed(freeListHead, other.freeListHead); } FreeList(FreeList const&) MOODYCAMEL_DELETE_FUNCTION; FreeList& operator=(FreeList const&) MOODYCAMEL_DELETE_FUNCTION; inline void add(N* node) { #ifdef MCDBGQ_NOLOCKFREE_FREELIST debug::DebugLock lock(mutex); #endif // We know that the should-be-on-freelist bit is 0 at this point, so it's safe to // set it using a fetch_add if (node->freeListRefs.fetch_add(SHOULD_BE_ON_FREELIST, std::memory_order_acq_rel) == 0) { // Oh look! We were the last ones referencing this node, and we know // we want to add it to the free list, so let's do it! add_knowing_refcount_is_zero(node); } } inline N* try_get() { #ifdef MCDBGQ_NOLOCKFREE_FREELIST debug::DebugLock lock(mutex); #endif auto head = freeListHead.load(std::memory_order_acquire); while (head != nullptr) { auto prevHead = head; auto refs = head->freeListRefs.load(std::memory_order_relaxed); if ((refs & REFS_MASK) == 0 || !head->freeListRefs.compare_exchange_strong(refs, refs + 1, std::memory_order_acquire, std::memory_order_relaxed)) { head = freeListHead.load(std::memory_order_acquire); continue; } // Good, reference count has been incremented (it wasn't at zero), which means we can read the // next and not worry about it changing between now and the time we do the CAS auto next = head->freeListNext.load(std::memory_order_relaxed); if (freeListHead.compare_exchange_strong(head, next, std::memory_order_acquire, std::memory_order_relaxed)) { // Yay, got the node. This means it was on the list, which means shouldBeOnFreeList must be false no // matter the refcount (because nobody else knows it's been taken off yet, it can't have been put back on). assert((head->freeListRefs.load(std::memory_order_relaxed) & SHOULD_BE_ON_FREELIST) == 0); // Decrease refcount twice, once for our ref, and once for the list's ref head->freeListRefs.fetch_sub(2, std::memory_order_release); return head; } // OK, the head must have changed on us, but we still need to decrease the refcount we increased. // Note that we don't need to release any memory effects, but we do need to ensure that the reference // count decrement happens-after the CAS on the head. refs = prevHead->freeListRefs.fetch_sub(1, std::memory_order_acq_rel); if (refs == SHOULD_BE_ON_FREELIST + 1) { add_knowing_refcount_is_zero(prevHead); } } return nullptr; } // Useful for traversing the list when there's no contention (e.g. to destroy remaining nodes) N* head_unsafe() const { return freeListHead.load(std::memory_order_relaxed); } private: inline void add_knowing_refcount_is_zero(N* node) { // Since the refcount is zero, and nobody can increase it once it's zero (except us, and we run // only one copy of this method per node at a time, i.e. the single thread case), then we know // we can safely change the next pointer of the node; however, once the refcount is back above // zero, then other threads could increase it (happens under heavy contention, when the refcount // goes to zero in between a load and a refcount increment of a node in try_get, then back up to // something non-zero, then the refcount increment is done by the other thread) -- so, if the CAS // to add the node to the actual list fails, decrease the refcount and leave the add operation to // the next thread who puts the refcount back at zero (which could be us, hence the loop). auto head = freeListHead.load(std::memory_order_relaxed); while (true) { node->freeListNext.store(head, std::memory_order_relaxed); node->freeListRefs.store(1, std::memory_order_release); if (!freeListHead.compare_exchange_strong(head, node, std::memory_order_release, std::memory_order_relaxed)) { // Hmm, the add failed, but we can only try again when the refcount goes back to zero if (node->freeListRefs.fetch_add(SHOULD_BE_ON_FREELIST - 1, std::memory_order_release) == 1) { continue; } } return; } } private: // Implemented like a stack, but where node order doesn't matter (nodes are inserted out of order under contention) std::atomic freeListHead; static const std::uint32_t REFS_MASK = 0x7FFFFFFF; static const std::uint32_t SHOULD_BE_ON_FREELIST = 0x80000000; #ifdef MCDBGQ_NOLOCKFREE_FREELIST debug::DebugMutex mutex; #endif }; /////////////////////////// // Block /////////////////////////// enum InnerQueueContext { implicit_context = 0, explicit_context = 1 }; struct Block { Block() : next(nullptr), elementsCompletelyDequeued(0), freeListRefs(0), freeListNext(nullptr), shouldBeOnFreeList(false), dynamicallyAllocated(true) { #ifdef MCDBGQ_TRACKMEM owner = nullptr; #endif } template inline bool is_empty() const { MOODYCAMEL_CONSTEXPR_IF (context == explicit_context && BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD) { // Check flags for (size_t i = 0; i < BLOCK_SIZE; ++i) { if (!emptyFlags[i].load(std::memory_order_relaxed)) { return false; } } // Aha, empty; make sure we have all other memory effects that happened before the empty flags were set std::atomic_thread_fence(std::memory_order_acquire); return true; } else { // Check counter if (elementsCompletelyDequeued.load(std::memory_order_relaxed) == BLOCK_SIZE) { std::atomic_thread_fence(std::memory_order_acquire); return true; } assert(elementsCompletelyDequeued.load(std::memory_order_relaxed) <= BLOCK_SIZE); return false; } } // Returns true if the block is now empty (does not apply in explicit context) template inline bool set_empty(MOODYCAMEL_MAYBE_UNUSED index_t i) { MOODYCAMEL_CONSTEXPR_IF (context == explicit_context && BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD) { // Set flag assert(!emptyFlags[BLOCK_SIZE - 1 - static_cast(i & static_cast(BLOCK_SIZE - 1))].load(std::memory_order_relaxed)); emptyFlags[BLOCK_SIZE - 1 - static_cast(i & static_cast(BLOCK_SIZE - 1))].store(true, std::memory_order_release); return false; } else { // Increment counter auto prevVal = elementsCompletelyDequeued.fetch_add(1, std::memory_order_release); assert(prevVal < BLOCK_SIZE); return prevVal == BLOCK_SIZE - 1; } } // Sets multiple contiguous item statuses to 'empty' (assumes no wrapping and count > 0). // Returns true if the block is now empty (does not apply in explicit context). template inline bool set_many_empty(MOODYCAMEL_MAYBE_UNUSED index_t i, size_t count) { MOODYCAMEL_CONSTEXPR_IF (context == explicit_context && BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD) { // Set flags std::atomic_thread_fence(std::memory_order_release); i = BLOCK_SIZE - 1 - static_cast(i & static_cast(BLOCK_SIZE - 1)) - count + 1; for (size_t j = 0; j != count; ++j) { assert(!emptyFlags[i + j].load(std::memory_order_relaxed)); emptyFlags[i + j].store(true, std::memory_order_relaxed); } return false; } else { // Increment counter auto prevVal = elementsCompletelyDequeued.fetch_add(count, std::memory_order_release); assert(prevVal + count <= BLOCK_SIZE); return prevVal + count == BLOCK_SIZE; } } template inline void set_all_empty() { MOODYCAMEL_CONSTEXPR_IF (context == explicit_context && BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD) { // Set all flags for (size_t i = 0; i != BLOCK_SIZE; ++i) { emptyFlags[i].store(true, std::memory_order_relaxed); } } else { // Reset counter elementsCompletelyDequeued.store(BLOCK_SIZE, std::memory_order_relaxed); } } template inline void reset_empty() { MOODYCAMEL_CONSTEXPR_IF (context == explicit_context && BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD) { // Reset flags for (size_t i = 0; i != BLOCK_SIZE; ++i) { emptyFlags[i].store(false, std::memory_order_relaxed); } } else { // Reset counter elementsCompletelyDequeued.store(0, std::memory_order_relaxed); } } inline T* operator[](index_t idx) MOODYCAMEL_NOEXCEPT { return static_cast(static_cast(elements)) + static_cast(idx & static_cast(BLOCK_SIZE - 1)); } inline T const* operator[](index_t idx) const MOODYCAMEL_NOEXCEPT { return static_cast(static_cast(elements)) + static_cast(idx & static_cast(BLOCK_SIZE - 1)); } private: static_assert(std::alignment_of::value <= sizeof(T), "The queue does not support types with an alignment greater than their size at this time"); MOODYCAMEL_ALIGNAS(MOODYCAMEL_ALIGNOF(T)) char elements[sizeof(T) * BLOCK_SIZE]; public: Block* next; std::atomic elementsCompletelyDequeued; std::atomic emptyFlags[BLOCK_SIZE <= EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD ? BLOCK_SIZE : 1]; public: std::atomic freeListRefs; std::atomic freeListNext; std::atomic shouldBeOnFreeList; bool dynamicallyAllocated; // Perhaps a better name for this would be 'isNotPartOfInitialBlockPool' #ifdef MCDBGQ_TRACKMEM void* owner; #endif }; static_assert(std::alignment_of::value >= std::alignment_of::value, "Internal error: Blocks must be at least as aligned as the type they are wrapping"); #ifdef MCDBGQ_TRACKMEM public: struct MemStats; private: #endif /////////////////////////// // Producer base /////////////////////////// struct ProducerBase : public details::ConcurrentQueueProducerTypelessBase { ProducerBase(ConcurrentQueue* parent_, bool isExplicit_) : tailIndex(0), headIndex(0), dequeueOptimisticCount(0), dequeueOvercommit(0), tailBlock(nullptr), isExplicit(isExplicit_), parent(parent_) { } virtual ~ProducerBase() { }; template inline bool dequeue(U& element) { if (isExplicit) { return static_cast(this)->dequeue(element); } else { return static_cast(this)->dequeue(element); } } template inline size_t dequeue_bulk(It& itemFirst, size_t max) { if (isExplicit) { return static_cast(this)->dequeue_bulk(itemFirst, max); } else { return static_cast(this)->dequeue_bulk(itemFirst, max); } } inline ProducerBase* next_prod() const { return static_cast(next); } inline size_t size_approx() const { auto tail = tailIndex.load(std::memory_order_relaxed); auto head = headIndex.load(std::memory_order_relaxed); return details::circular_less_than(head, tail) ? static_cast(tail - head) : 0; } inline index_t getTail() const { return tailIndex.load(std::memory_order_relaxed); } protected: std::atomic tailIndex; // Where to enqueue to next std::atomic headIndex; // Where to dequeue from next std::atomic dequeueOptimisticCount; std::atomic dequeueOvercommit; Block* tailBlock; public: bool isExplicit; ConcurrentQueue* parent; protected: #ifdef MCDBGQ_TRACKMEM friend struct MemStats; #endif }; /////////////////////////// // Explicit queue /////////////////////////// struct ExplicitProducer : public ProducerBase { explicit ExplicitProducer(ConcurrentQueue* parent_) : ProducerBase(parent_, true), blockIndex(nullptr), pr_blockIndexSlotsUsed(0), pr_blockIndexSize(EXPLICIT_INITIAL_INDEX_SIZE >> 1), pr_blockIndexFront(0), pr_blockIndexEntries(nullptr), pr_blockIndexRaw(nullptr) { size_t poolBasedIndexSize = details::ceil_to_pow_2(parent_->initialBlockPoolSize) >> 1; if (poolBasedIndexSize > pr_blockIndexSize) { pr_blockIndexSize = poolBasedIndexSize; } new_block_index(0); // This creates an index with double the number of current entries, i.e. EXPLICIT_INITIAL_INDEX_SIZE } ~ExplicitProducer() { // Destruct any elements not yet dequeued. // Since we're in the destructor, we can assume all elements // are either completely dequeued or completely not (no halfways). if (this->tailBlock != nullptr) { // Note this means there must be a block index too // First find the block that's partially dequeued, if any Block* halfDequeuedBlock = nullptr; if ((this->headIndex.load(std::memory_order_relaxed) & static_cast(BLOCK_SIZE - 1)) != 0) { // The head's not on a block boundary, meaning a block somewhere is partially dequeued // (or the head block is the tail block and was fully dequeued, but the head/tail are still not on a boundary) size_t i = (pr_blockIndexFront - pr_blockIndexSlotsUsed) & (pr_blockIndexSize - 1); while (details::circular_less_than(pr_blockIndexEntries[i].base + BLOCK_SIZE, this->headIndex.load(std::memory_order_relaxed))) { i = (i + 1) & (pr_blockIndexSize - 1); } assert(details::circular_less_than(pr_blockIndexEntries[i].base, this->headIndex.load(std::memory_order_relaxed))); halfDequeuedBlock = pr_blockIndexEntries[i].block; } // Start at the head block (note the first line in the loop gives us the head from the tail on the first iteration) auto block = this->tailBlock; do { block = block->next; if (block->ConcurrentQueue::Block::template is_empty()) { continue; } size_t i = 0; // Offset into block if (block == halfDequeuedBlock) { i = static_cast(this->headIndex.load(std::memory_order_relaxed) & static_cast(BLOCK_SIZE - 1)); } // Walk through all the items in the block; if this is the tail block, we need to stop when we reach the tail index auto lastValidIndex = (this->tailIndex.load(std::memory_order_relaxed) & static_cast(BLOCK_SIZE - 1)) == 0 ? BLOCK_SIZE : static_cast(this->tailIndex.load(std::memory_order_relaxed) & static_cast(BLOCK_SIZE - 1)); while (i != BLOCK_SIZE && (block != this->tailBlock || i != lastValidIndex)) { (*block)[i++]->~T(); } } while (block != this->tailBlock); } // Destroy all blocks that we own if (this->tailBlock != nullptr) { auto block = this->tailBlock; do { auto nextBlock = block->next; if (block->dynamicallyAllocated) { destroy(block); } else { this->parent->add_block_to_free_list(block); } block = nextBlock; } while (block != this->tailBlock); } // Destroy the block indices auto header = static_cast(pr_blockIndexRaw); while (header != nullptr) { auto prev = static_cast(header->prev); header->~BlockIndexHeader(); (Traits::free)(header); header = prev; } } template inline bool enqueue(U&& element) { index_t currentTailIndex = this->tailIndex.load(std::memory_order_relaxed); index_t newTailIndex = 1 + currentTailIndex; if ((currentTailIndex & static_cast(BLOCK_SIZE - 1)) == 0) { // We reached the end of a block, start a new one auto startBlock = this->tailBlock; auto originalBlockIndexSlotsUsed = pr_blockIndexSlotsUsed; if (this->tailBlock != nullptr && this->tailBlock->next->ConcurrentQueue::Block::template is_empty()) { // We can re-use the block ahead of us, it's empty! this->tailBlock = this->tailBlock->next; this->tailBlock->ConcurrentQueue::Block::template reset_empty(); // We'll put the block on the block index (guaranteed to be room since we're conceptually removing the // last block from it first -- except instead of removing then adding, we can just overwrite). // Note that there must be a valid block index here, since even if allocation failed in the ctor, // it would have been re-attempted when adding the first block to the queue; since there is such // a block, a block index must have been successfully allocated. } else { // Whatever head value we see here is >= the last value we saw here (relatively), // and <= its current value. Since we have the most recent tail, the head must be // <= to it. auto head = this->headIndex.load(std::memory_order_relaxed); assert(!details::circular_less_than(currentTailIndex, head)); if (!details::circular_less_than(head, currentTailIndex + BLOCK_SIZE) || (MAX_SUBQUEUE_SIZE != details::const_numeric_max::value && (MAX_SUBQUEUE_SIZE == 0 || MAX_SUBQUEUE_SIZE - BLOCK_SIZE < currentTailIndex - head))) { // We can't enqueue in another block because there's not enough leeway -- the // tail could surpass the head by the time the block fills up! (Or we'll exceed // the size limit, if the second part of the condition was true.) return false; } // We're going to need a new block; check that the block index has room if (pr_blockIndexRaw == nullptr || pr_blockIndexSlotsUsed == pr_blockIndexSize) { // Hmm, the circular block index is already full -- we'll need // to allocate a new index. Note pr_blockIndexRaw can only be nullptr if // the initial allocation failed in the constructor. MOODYCAMEL_CONSTEXPR_IF (allocMode == CannotAlloc) { return false; } else if (!new_block_index(pr_blockIndexSlotsUsed)) { return false; } } // Insert a new block in the circular linked list auto newBlock = this->parent->ConcurrentQueue::template requisition_block(); if (newBlock == nullptr) { return false; } #ifdef MCDBGQ_TRACKMEM newBlock->owner = this; #endif newBlock->ConcurrentQueue::Block::template reset_empty(); if (this->tailBlock == nullptr) { newBlock->next = newBlock; } else { newBlock->next = this->tailBlock->next; this->tailBlock->next = newBlock; } this->tailBlock = newBlock; ++pr_blockIndexSlotsUsed; } if (!MOODYCAMEL_NOEXCEPT_CTOR(T, U, new ((T*)nullptr) T(std::forward(element)))) { // The constructor may throw. We want the element not to appear in the queue in // that case (without corrupting the queue): MOODYCAMEL_TRY { new ((*this->tailBlock)[currentTailIndex]) T(std::forward(element)); } MOODYCAMEL_CATCH (...) { // Revert change to the current block, but leave the new block available // for next time pr_blockIndexSlotsUsed = originalBlockIndexSlotsUsed; this->tailBlock = startBlock == nullptr ? this->tailBlock : startBlock; MOODYCAMEL_RETHROW; } } else { (void)startBlock; (void)originalBlockIndexSlotsUsed; } // Add block to block index auto& entry = blockIndex.load(std::memory_order_relaxed)->entries[pr_blockIndexFront]; entry.base = currentTailIndex; entry.block = this->tailBlock; blockIndex.load(std::memory_order_relaxed)->front.store(pr_blockIndexFront, std::memory_order_release); pr_blockIndexFront = (pr_blockIndexFront + 1) & (pr_blockIndexSize - 1); if (!MOODYCAMEL_NOEXCEPT_CTOR(T, U, new ((T*)nullptr) T(std::forward(element)))) { this->tailIndex.store(newTailIndex, std::memory_order_release); return true; } } // Enqueue new ((*this->tailBlock)[currentTailIndex]) T(std::forward(element)); this->tailIndex.store(newTailIndex, std::memory_order_release); return true; } template bool dequeue(U& element) { auto tail = this->tailIndex.load(std::memory_order_relaxed); auto overcommit = this->dequeueOvercommit.load(std::memory_order_relaxed); if (details::circular_less_than(this->dequeueOptimisticCount.load(std::memory_order_relaxed) - overcommit, tail)) { // Might be something to dequeue, let's give it a try // Note that this if is purely for performance purposes in the common case when the queue is // empty and the values are eventually consistent -- we may enter here spuriously. // Note that whatever the values of overcommit and tail are, they are not going to change (unless we // change them) and must be the same value at this point (inside the if) as when the if condition was // evaluated. // We insert an acquire fence here to synchronize-with the release upon incrementing dequeueOvercommit below. // This ensures that whatever the value we got loaded into overcommit, the load of dequeueOptisticCount in // the fetch_add below will result in a value at least as recent as that (and therefore at least as large). // Note that I believe a compiler (signal) fence here would be sufficient due to the nature of fetch_add (all // read-modify-write operations are guaranteed to work on the latest value in the modification order), but // unfortunately that can't be shown to be correct using only the C++11 standard. // See http://stackoverflow.com/questions/18223161/what-are-the-c11-memory-ordering-guarantees-in-this-corner-case std::atomic_thread_fence(std::memory_order_acquire); // Increment optimistic counter, then check if it went over the boundary auto myDequeueCount = this->dequeueOptimisticCount.fetch_add(1, std::memory_order_relaxed); // Note that since dequeueOvercommit must be <= dequeueOptimisticCount (because dequeueOvercommit is only ever // incremented after dequeueOptimisticCount -- this is enforced in the `else` block below), and since we now // have a version of dequeueOptimisticCount that is at least as recent as overcommit (due to the release upon // incrementing dequeueOvercommit and the acquire above that synchronizes with it), overcommit <= myDequeueCount. // However, we can't assert this since both dequeueOptimisticCount and dequeueOvercommit may (independently) // overflow; in such a case, though, the logic still holds since the difference between the two is maintained. // Note that we reload tail here in case it changed; it will be the same value as before or greater, since // this load is sequenced after (happens after) the earlier load above. This is supported by read-read // coherency (as defined in the standard), explained here: http://en.cppreference.com/w/cpp/atomic/memory_order tail = this->tailIndex.load(std::memory_order_acquire); if ((details::likely)(details::circular_less_than(myDequeueCount - overcommit, tail))) { // Guaranteed to be at least one element to dequeue! // Get the index. Note that since there's guaranteed to be at least one element, this // will never exceed tail. We need to do an acquire-release fence here since it's possible // that whatever condition got us to this point was for an earlier enqueued element (that // we already see the memory effects for), but that by the time we increment somebody else // has incremented it, and we need to see the memory effects for *that* element, which is // in such a case is necessarily visible on the thread that incremented it in the first // place with the more current condition (they must have acquired a tail that is at least // as recent). auto index = this->headIndex.fetch_add(1, std::memory_order_acq_rel); // Determine which block the element is in auto localBlockIndex = blockIndex.load(std::memory_order_acquire); auto localBlockIndexHead = localBlockIndex->front.load(std::memory_order_acquire); // We need to be careful here about subtracting and dividing because of index wrap-around. // When an index wraps, we need to preserve the sign of the offset when dividing it by the // block size (in order to get a correct signed block count offset in all cases): auto headBase = localBlockIndex->entries[localBlockIndexHead].base; auto blockBaseIndex = index & ~static_cast(BLOCK_SIZE - 1); auto offset = static_cast(static_cast::type>(blockBaseIndex - headBase) / static_cast::type>(BLOCK_SIZE)); auto block = localBlockIndex->entries[(localBlockIndexHead + offset) & (localBlockIndex->size - 1)].block; // Dequeue auto& el = *((*block)[index]); if (!MOODYCAMEL_NOEXCEPT_ASSIGN(T, T&&, element = std::move(el))) { // Make sure the element is still fully dequeued and destroyed even if the assignment // throws struct Guard { Block* block; index_t index; ~Guard() { (*block)[index]->~T(); block->ConcurrentQueue::Block::template set_empty(index); } } guard = { block, index }; element = std::move(el); // NOLINT } else { element = std::move(el); // NOLINT el.~T(); // NOLINT block->ConcurrentQueue::Block::template set_empty(index); } return true; } else { // Wasn't anything to dequeue after all; make the effective dequeue count eventually consistent this->dequeueOvercommit.fetch_add(1, std::memory_order_release); // Release so that the fetch_add on dequeueOptimisticCount is guaranteed to happen before this write } } return false; } template bool enqueue_bulk(It itemFirst, size_t count) { // First, we need to make sure we have enough room to enqueue all of the elements; // this means pre-allocating blocks and putting them in the block index (but only if // all the allocations succeeded). index_t startTailIndex = this->tailIndex.load(std::memory_order_relaxed); auto startBlock = this->tailBlock; auto originalBlockIndexFront = pr_blockIndexFront; auto originalBlockIndexSlotsUsed = pr_blockIndexSlotsUsed; Block* firstAllocatedBlock = nullptr; // Figure out how many blocks we'll need to allocate, and do so size_t blockBaseDiff = ((startTailIndex + count - 1) & ~static_cast(BLOCK_SIZE - 1)) - ((startTailIndex - 1) & ~static_cast(BLOCK_SIZE - 1)); index_t currentTailIndex = (startTailIndex - 1) & ~static_cast(BLOCK_SIZE - 1); if (blockBaseDiff > 0) { // Allocate as many blocks as possible from ahead while (blockBaseDiff > 0 && this->tailBlock != nullptr && this->tailBlock->next != firstAllocatedBlock && this->tailBlock->next->ConcurrentQueue::Block::template is_empty()) { blockBaseDiff -= static_cast(BLOCK_SIZE); currentTailIndex += static_cast(BLOCK_SIZE); this->tailBlock = this->tailBlock->next; firstAllocatedBlock = firstAllocatedBlock == nullptr ? this->tailBlock : firstAllocatedBlock; auto& entry = blockIndex.load(std::memory_order_relaxed)->entries[pr_blockIndexFront]; entry.base = currentTailIndex; entry.block = this->tailBlock; pr_blockIndexFront = (pr_blockIndexFront + 1) & (pr_blockIndexSize - 1); } // Now allocate as many blocks as necessary from the block pool while (blockBaseDiff > 0) { blockBaseDiff -= static_cast(BLOCK_SIZE); currentTailIndex += static_cast(BLOCK_SIZE); auto head = this->headIndex.load(std::memory_order_relaxed); assert(!details::circular_less_than(currentTailIndex, head)); bool full = !details::circular_less_than(head, currentTailIndex + BLOCK_SIZE) || (MAX_SUBQUEUE_SIZE != details::const_numeric_max::value && (MAX_SUBQUEUE_SIZE == 0 || MAX_SUBQUEUE_SIZE - BLOCK_SIZE < currentTailIndex - head)); if (pr_blockIndexRaw == nullptr || pr_blockIndexSlotsUsed == pr_blockIndexSize || full) { MOODYCAMEL_CONSTEXPR_IF (allocMode == CannotAlloc) { // Failed to allocate, undo changes (but keep injected blocks) pr_blockIndexFront = originalBlockIndexFront; pr_blockIndexSlotsUsed = originalBlockIndexSlotsUsed; this->tailBlock = startBlock == nullptr ? firstAllocatedBlock : startBlock; return false; } else if (full || !new_block_index(originalBlockIndexSlotsUsed)) { // Failed to allocate, undo changes (but keep injected blocks) pr_blockIndexFront = originalBlockIndexFront; pr_blockIndexSlotsUsed = originalBlockIndexSlotsUsed; this->tailBlock = startBlock == nullptr ? firstAllocatedBlock : startBlock; return false; } // pr_blockIndexFront is updated inside new_block_index, so we need to // update our fallback value too (since we keep the new index even if we // later fail) originalBlockIndexFront = originalBlockIndexSlotsUsed; } // Insert a new block in the circular linked list auto newBlock = this->parent->ConcurrentQueue::template requisition_block(); if (newBlock == nullptr) { pr_blockIndexFront = originalBlockIndexFront; pr_blockIndexSlotsUsed = originalBlockIndexSlotsUsed; this->tailBlock = startBlock == nullptr ? firstAllocatedBlock : startBlock; return false; } #ifdef MCDBGQ_TRACKMEM newBlock->owner = this; #endif newBlock->ConcurrentQueue::Block::template set_all_empty(); if (this->tailBlock == nullptr) { newBlock->next = newBlock; } else { newBlock->next = this->tailBlock->next; this->tailBlock->next = newBlock; } this->tailBlock = newBlock; firstAllocatedBlock = firstAllocatedBlock == nullptr ? this->tailBlock : firstAllocatedBlock; ++pr_blockIndexSlotsUsed; auto& entry = blockIndex.load(std::memory_order_relaxed)->entries[pr_blockIndexFront]; entry.base = currentTailIndex; entry.block = this->tailBlock; pr_blockIndexFront = (pr_blockIndexFront + 1) & (pr_blockIndexSize - 1); } // Excellent, all allocations succeeded. Reset each block's emptiness before we fill them up, and // publish the new block index front auto block = firstAllocatedBlock; while (true) { block->ConcurrentQueue::Block::template reset_empty(); if (block == this->tailBlock) { break; } block = block->next; } if (MOODYCAMEL_NOEXCEPT_CTOR(T, decltype(*itemFirst), new ((T*)nullptr) T(details::deref_noexcept(itemFirst)))) { blockIndex.load(std::memory_order_relaxed)->front.store((pr_blockIndexFront - 1) & (pr_blockIndexSize - 1), std::memory_order_release); } } // Enqueue, one block at a time index_t newTailIndex = startTailIndex + static_cast(count); currentTailIndex = startTailIndex; auto endBlock = this->tailBlock; this->tailBlock = startBlock; assert((startTailIndex & static_cast(BLOCK_SIZE - 1)) != 0 || firstAllocatedBlock != nullptr || count == 0); if ((startTailIndex & static_cast(BLOCK_SIZE - 1)) == 0 && firstAllocatedBlock != nullptr) { this->tailBlock = firstAllocatedBlock; } while (true) { auto stopIndex = (currentTailIndex & ~static_cast(BLOCK_SIZE - 1)) + static_cast(BLOCK_SIZE); if (details::circular_less_than(newTailIndex, stopIndex)) { stopIndex = newTailIndex; } if (MOODYCAMEL_NOEXCEPT_CTOR(T, decltype(*itemFirst), new ((T*)nullptr) T(details::deref_noexcept(itemFirst)))) { while (currentTailIndex != stopIndex) { new ((*this->tailBlock)[currentTailIndex++]) T(*itemFirst++); } } else { MOODYCAMEL_TRY { while (currentTailIndex != stopIndex) { // Must use copy constructor even if move constructor is available // because we may have to revert if there's an exception. // Sorry about the horrible templated next line, but it was the only way // to disable moving *at compile time*, which is important because a type // may only define a (noexcept) move constructor, and so calls to the // cctor will not compile, even if they are in an if branch that will never // be executed new ((*this->tailBlock)[currentTailIndex]) T(details::nomove_if<(bool)!MOODYCAMEL_NOEXCEPT_CTOR(T, decltype(*itemFirst), new ((T*)nullptr) T(details::deref_noexcept(itemFirst)))>::eval(*itemFirst)); ++currentTailIndex; ++itemFirst; } } MOODYCAMEL_CATCH (...) { // Oh dear, an exception's been thrown -- destroy the elements that // were enqueued so far and revert the entire bulk operation (we'll keep // any allocated blocks in our linked list for later, though). auto constructedStopIndex = currentTailIndex; auto lastBlockEnqueued = this->tailBlock; pr_blockIndexFront = originalBlockIndexFront; pr_blockIndexSlotsUsed = originalBlockIndexSlotsUsed; this->tailBlock = startBlock == nullptr ? firstAllocatedBlock : startBlock; if (!details::is_trivially_destructible::value) { auto block = startBlock; if ((startTailIndex & static_cast(BLOCK_SIZE - 1)) == 0) { block = firstAllocatedBlock; } currentTailIndex = startTailIndex; while (true) { stopIndex = (currentTailIndex & ~static_cast(BLOCK_SIZE - 1)) + static_cast(BLOCK_SIZE); if (details::circular_less_than(constructedStopIndex, stopIndex)) { stopIndex = constructedStopIndex; } while (currentTailIndex != stopIndex) { (*block)[currentTailIndex++]->~T(); } if (block == lastBlockEnqueued) { break; } block = block->next; } } MOODYCAMEL_RETHROW; } } if (this->tailBlock == endBlock) { assert(currentTailIndex == newTailIndex); break; } this->tailBlock = this->tailBlock->next; } if (!MOODYCAMEL_NOEXCEPT_CTOR(T, decltype(*itemFirst), new ((T*)nullptr) T(details::deref_noexcept(itemFirst))) && firstAllocatedBlock != nullptr) { blockIndex.load(std::memory_order_relaxed)->front.store((pr_blockIndexFront - 1) & (pr_blockIndexSize - 1), std::memory_order_release); } this->tailIndex.store(newTailIndex, std::memory_order_release); return true; } template size_t dequeue_bulk(It& itemFirst, size_t max) { auto tail = this->tailIndex.load(std::memory_order_relaxed); auto overcommit = this->dequeueOvercommit.load(std::memory_order_relaxed); auto desiredCount = static_cast(tail - (this->dequeueOptimisticCount.load(std::memory_order_relaxed) - overcommit)); if (details::circular_less_than(0, desiredCount)) { desiredCount = desiredCount < max ? desiredCount : max; std::atomic_thread_fence(std::memory_order_acquire); auto myDequeueCount = this->dequeueOptimisticCount.fetch_add(desiredCount, std::memory_order_relaxed);; tail = this->tailIndex.load(std::memory_order_acquire); auto actualCount = static_cast(tail - (myDequeueCount - overcommit)); if (details::circular_less_than(0, actualCount)) { actualCount = desiredCount < actualCount ? desiredCount : actualCount; if (actualCount < desiredCount) { this->dequeueOvercommit.fetch_add(desiredCount - actualCount, std::memory_order_release); } // Get the first index. Note that since there's guaranteed to be at least actualCount elements, this // will never exceed tail. auto firstIndex = this->headIndex.fetch_add(actualCount, std::memory_order_acq_rel); // Determine which block the first element is in auto localBlockIndex = blockIndex.load(std::memory_order_acquire); auto localBlockIndexHead = localBlockIndex->front.load(std::memory_order_acquire); auto headBase = localBlockIndex->entries[localBlockIndexHead].base; auto firstBlockBaseIndex = firstIndex & ~static_cast(BLOCK_SIZE - 1); auto offset = static_cast(static_cast::type>(firstBlockBaseIndex - headBase) / static_cast::type>(BLOCK_SIZE)); auto indexIndex = (localBlockIndexHead + offset) & (localBlockIndex->size - 1); // Iterate the blocks and dequeue auto index = firstIndex; do { auto firstIndexInBlock = index; auto endIndex = (index & ~static_cast(BLOCK_SIZE - 1)) + static_cast(BLOCK_SIZE); endIndex = details::circular_less_than(firstIndex + static_cast(actualCount), endIndex) ? firstIndex + static_cast(actualCount) : endIndex; auto block = localBlockIndex->entries[indexIndex].block; if (MOODYCAMEL_NOEXCEPT_ASSIGN(T, T&&, details::deref_noexcept(itemFirst) = std::move((*(*block)[index])))) { while (index != endIndex) { auto& el = *((*block)[index]); *itemFirst++ = std::move(el); el.~T(); ++index; } } else { MOODYCAMEL_TRY { while (index != endIndex) { auto& el = *((*block)[index]); *itemFirst = std::move(el); ++itemFirst; el.~T(); ++index; } } MOODYCAMEL_CATCH (...) { // It's too late to revert the dequeue, but we can make sure that all // the dequeued objects are properly destroyed and the block index // (and empty count) are properly updated before we propagate the exception do { block = localBlockIndex->entries[indexIndex].block; while (index != endIndex) { (*block)[index++]->~T(); } block->ConcurrentQueue::Block::template set_many_empty(firstIndexInBlock, static_cast(endIndex - firstIndexInBlock)); indexIndex = (indexIndex + 1) & (localBlockIndex->size - 1); firstIndexInBlock = index; endIndex = (index & ~static_cast(BLOCK_SIZE - 1)) + static_cast(BLOCK_SIZE); endIndex = details::circular_less_than(firstIndex + static_cast(actualCount), endIndex) ? firstIndex + static_cast(actualCount) : endIndex; } while (index != firstIndex + actualCount); MOODYCAMEL_RETHROW; } } block->ConcurrentQueue::Block::template set_many_empty(firstIndexInBlock, static_cast(endIndex - firstIndexInBlock)); indexIndex = (indexIndex + 1) & (localBlockIndex->size - 1); } while (index != firstIndex + actualCount); return actualCount; } else { // Wasn't anything to dequeue after all; make the effective dequeue count eventually consistent this->dequeueOvercommit.fetch_add(desiredCount, std::memory_order_release); } } return 0; } private: struct BlockIndexEntry { index_t base; Block* block; }; struct BlockIndexHeader { size_t size; std::atomic front; // Current slot (not next, like pr_blockIndexFront) BlockIndexEntry* entries; void* prev; }; bool new_block_index(size_t numberOfFilledSlotsToExpose) { auto prevBlockSizeMask = pr_blockIndexSize - 1; // Create the new block pr_blockIndexSize <<= 1; auto newRawPtr = static_cast((Traits::malloc)(sizeof(BlockIndexHeader) + std::alignment_of::value - 1 + sizeof(BlockIndexEntry) * pr_blockIndexSize)); if (newRawPtr == nullptr) { pr_blockIndexSize >>= 1; // Reset to allow graceful retry return false; } auto newBlockIndexEntries = reinterpret_cast(details::align_for(newRawPtr + sizeof(BlockIndexHeader))); // Copy in all the old indices, if any size_t j = 0; if (pr_blockIndexSlotsUsed != 0) { auto i = (pr_blockIndexFront - pr_blockIndexSlotsUsed) & prevBlockSizeMask; do { newBlockIndexEntries[j++] = pr_blockIndexEntries[i]; i = (i + 1) & prevBlockSizeMask; } while (i != pr_blockIndexFront); } // Update everything auto header = new (newRawPtr) BlockIndexHeader; header->size = pr_blockIndexSize; header->front.store(numberOfFilledSlotsToExpose - 1, std::memory_order_relaxed); header->entries = newBlockIndexEntries; header->prev = pr_blockIndexRaw; // we link the new block to the old one so we can free it later pr_blockIndexFront = j; pr_blockIndexEntries = newBlockIndexEntries; pr_blockIndexRaw = newRawPtr; blockIndex.store(header, std::memory_order_release); return true; } private: std::atomic blockIndex; // To be used by producer only -- consumer must use the ones in referenced by blockIndex size_t pr_blockIndexSlotsUsed; size_t pr_blockIndexSize; size_t pr_blockIndexFront; // Next slot (not current) BlockIndexEntry* pr_blockIndexEntries; void* pr_blockIndexRaw; #ifdef MOODYCAMEL_QUEUE_INTERNAL_DEBUG public: ExplicitProducer* nextExplicitProducer; private: #endif #ifdef MCDBGQ_TRACKMEM friend struct MemStats; #endif }; ////////////////////////////////// // Implicit queue ////////////////////////////////// struct ImplicitProducer : public ProducerBase { ImplicitProducer(ConcurrentQueue* parent_) : ProducerBase(parent_, false), nextBlockIndexCapacity(IMPLICIT_INITIAL_INDEX_SIZE), blockIndex(nullptr) { new_block_index(); } ~ImplicitProducer() { // Note that since we're in the destructor we can assume that all enqueue/dequeue operations // completed already; this means that all undequeued elements are placed contiguously across // contiguous blocks, and that only the first and last remaining blocks can be only partially // empty (all other remaining blocks must be completely full). #ifdef MOODYCAMEL_CPP11_THREAD_LOCAL_SUPPORTED // Unregister ourselves for thread termination notification if (!this->inactive.load(std::memory_order_relaxed)) { details::ThreadExitNotifier::unsubscribe(&threadExitListener); } #endif // Destroy all remaining elements! auto tail = this->tailIndex.load(std::memory_order_relaxed); auto index = this->headIndex.load(std::memory_order_relaxed); Block* block = nullptr; assert(index == tail || details::circular_less_than(index, tail)); bool forceFreeLastBlock = index != tail; // If we enter the loop, then the last (tail) block will not be freed while (index != tail) { if ((index & static_cast(BLOCK_SIZE - 1)) == 0 || block == nullptr) { if (block != nullptr) { // Free the old block this->parent->add_block_to_free_list(block); } block = get_block_index_entry_for_index(index)->value.load(std::memory_order_relaxed); } ((*block)[index])->~T(); ++index; } // Even if the queue is empty, there's still one block that's not on the free list // (unless the head index reached the end of it, in which case the tail will be poised // to create a new block). if (this->tailBlock != nullptr && (forceFreeLastBlock || (tail & static_cast(BLOCK_SIZE - 1)) != 0)) { this->parent->add_block_to_free_list(this->tailBlock); } // Destroy block index auto localBlockIndex = blockIndex.load(std::memory_order_relaxed); if (localBlockIndex != nullptr) { for (size_t i = 0; i != localBlockIndex->capacity; ++i) { localBlockIndex->index[i]->~BlockIndexEntry(); } do { auto prev = localBlockIndex->prev; localBlockIndex->~BlockIndexHeader(); (Traits::free)(localBlockIndex); localBlockIndex = prev; } while (localBlockIndex != nullptr); } } template inline bool enqueue(U&& element) { index_t currentTailIndex = this->tailIndex.load(std::memory_order_relaxed); index_t newTailIndex = 1 + currentTailIndex; if ((currentTailIndex & static_cast(BLOCK_SIZE - 1)) == 0) { // We reached the end of a block, start a new one auto head = this->headIndex.load(std::memory_order_relaxed); assert(!details::circular_less_than(currentTailIndex, head)); if (!details::circular_less_than(head, currentTailIndex + BLOCK_SIZE) || (MAX_SUBQUEUE_SIZE != details::const_numeric_max::value && (MAX_SUBQUEUE_SIZE == 0 || MAX_SUBQUEUE_SIZE - BLOCK_SIZE < currentTailIndex - head))) { return false; } #ifdef MCDBGQ_NOLOCKFREE_IMPLICITPRODBLOCKINDEX debug::DebugLock lock(mutex); #endif // Find out where we'll be inserting this block in the block index BlockIndexEntry* idxEntry; if (!insert_block_index_entry(idxEntry, currentTailIndex)) { return false; } // Get ahold of a new block auto newBlock = this->parent->ConcurrentQueue::template requisition_block(); if (newBlock == nullptr) { rewind_block_index_tail(); idxEntry->value.store(nullptr, std::memory_order_relaxed); return false; } #ifdef MCDBGQ_TRACKMEM newBlock->owner = this; #endif newBlock->ConcurrentQueue::Block::template reset_empty(); if (!MOODYCAMEL_NOEXCEPT_CTOR(T, U, new ((T*)nullptr) T(std::forward(element)))) { // May throw, try to insert now before we publish the fact that we have this new block MOODYCAMEL_TRY { new ((*newBlock)[currentTailIndex]) T(std::forward(element)); } MOODYCAMEL_CATCH (...) { rewind_block_index_tail(); idxEntry->value.store(nullptr, std::memory_order_relaxed); this->parent->add_block_to_free_list(newBlock); MOODYCAMEL_RETHROW; } } // Insert the new block into the index idxEntry->value.store(newBlock, std::memory_order_relaxed); this->tailBlock = newBlock; if (!MOODYCAMEL_NOEXCEPT_CTOR(T, U, new ((T*)nullptr) T(std::forward(element)))) { this->tailIndex.store(newTailIndex, std::memory_order_release); return true; } } // Enqueue new ((*this->tailBlock)[currentTailIndex]) T(std::forward(element)); this->tailIndex.store(newTailIndex, std::memory_order_release); return true; } template bool dequeue(U& element) { // See ExplicitProducer::dequeue for rationale and explanation index_t tail = this->tailIndex.load(std::memory_order_relaxed); index_t overcommit = this->dequeueOvercommit.load(std::memory_order_relaxed); if (details::circular_less_than(this->dequeueOptimisticCount.load(std::memory_order_relaxed) - overcommit, tail)) { std::atomic_thread_fence(std::memory_order_acquire); index_t myDequeueCount = this->dequeueOptimisticCount.fetch_add(1, std::memory_order_relaxed); tail = this->tailIndex.load(std::memory_order_acquire); if ((details::likely)(details::circular_less_than(myDequeueCount - overcommit, tail))) { index_t index = this->headIndex.fetch_add(1, std::memory_order_acq_rel); // Determine which block the element is in auto entry = get_block_index_entry_for_index(index); // Dequeue auto block = entry->value.load(std::memory_order_relaxed); auto& el = *((*block)[index]); if (!MOODYCAMEL_NOEXCEPT_ASSIGN(T, T&&, element = std::move(el))) { #ifdef MCDBGQ_NOLOCKFREE_IMPLICITPRODBLOCKINDEX // Note: Acquiring the mutex with every dequeue instead of only when a block // is released is very sub-optimal, but it is, after all, purely debug code. debug::DebugLock lock(producer->mutex); #endif struct Guard { Block* block; index_t index; BlockIndexEntry* entry; ConcurrentQueue* parent; ~Guard() { (*block)[index]->~T(); if (block->ConcurrentQueue::Block::template set_empty(index)) { entry->value.store(nullptr, std::memory_order_relaxed); parent->add_block_to_free_list(block); } } } guard = { block, index, entry, this->parent }; element = std::move(el); // NOLINT } else { element = std::move(el); // NOLINT el.~T(); // NOLINT if (block->ConcurrentQueue::Block::template set_empty(index)) { { #ifdef MCDBGQ_NOLOCKFREE_IMPLICITPRODBLOCKINDEX debug::DebugLock lock(mutex); #endif // Add the block back into the global free pool (and remove from block index) entry->value.store(nullptr, std::memory_order_relaxed); } this->parent->add_block_to_free_list(block); // releases the above store } } return true; } else { this->dequeueOvercommit.fetch_add(1, std::memory_order_release); } } return false; } template bool enqueue_bulk(It itemFirst, size_t count) { // First, we need to make sure we have enough room to enqueue all of the elements; // this means pre-allocating blocks and putting them in the block index (but only if // all the allocations succeeded). // Note that the tailBlock we start off with may not be owned by us any more; // this happens if it was filled up exactly to the top (setting tailIndex to // the first index of the next block which is not yet allocated), then dequeued // completely (putting it on the free list) before we enqueue again. index_t startTailIndex = this->tailIndex.load(std::memory_order_relaxed); auto startBlock = this->tailBlock; Block* firstAllocatedBlock = nullptr; auto endBlock = this->tailBlock; // Figure out how many blocks we'll need to allocate, and do so size_t blockBaseDiff = ((startTailIndex + count - 1) & ~static_cast(BLOCK_SIZE - 1)) - ((startTailIndex - 1) & ~static_cast(BLOCK_SIZE - 1)); index_t currentTailIndex = (startTailIndex - 1) & ~static_cast(BLOCK_SIZE - 1); if (blockBaseDiff > 0) { #ifdef MCDBGQ_NOLOCKFREE_IMPLICITPRODBLOCKINDEX debug::DebugLock lock(mutex); #endif do { blockBaseDiff -= static_cast(BLOCK_SIZE); currentTailIndex += static_cast(BLOCK_SIZE); // Find out where we'll be inserting this block in the block index BlockIndexEntry* idxEntry = nullptr; // initialization here unnecessary but compiler can't always tell Block* newBlock; bool indexInserted = false; auto head = this->headIndex.load(std::memory_order_relaxed); assert(!details::circular_less_than(currentTailIndex, head)); bool full = !details::circular_less_than(head, currentTailIndex + BLOCK_SIZE) || (MAX_SUBQUEUE_SIZE != details::const_numeric_max::value && (MAX_SUBQUEUE_SIZE == 0 || MAX_SUBQUEUE_SIZE - BLOCK_SIZE < currentTailIndex - head)); if (full || !(indexInserted = insert_block_index_entry(idxEntry, currentTailIndex)) || (newBlock = this->parent->ConcurrentQueue::template requisition_block()) == nullptr) { // Index allocation or block allocation failed; revert any other allocations // and index insertions done so far for this operation if (indexInserted) { rewind_block_index_tail(); idxEntry->value.store(nullptr, std::memory_order_relaxed); } currentTailIndex = (startTailIndex - 1) & ~static_cast(BLOCK_SIZE - 1); for (auto block = firstAllocatedBlock; block != nullptr; block = block->next) { currentTailIndex += static_cast(BLOCK_SIZE); idxEntry = get_block_index_entry_for_index(currentTailIndex); idxEntry->value.store(nullptr, std::memory_order_relaxed); rewind_block_index_tail(); } this->parent->add_blocks_to_free_list(firstAllocatedBlock); this->tailBlock = startBlock; return false; } #ifdef MCDBGQ_TRACKMEM newBlock->owner = this; #endif newBlock->ConcurrentQueue::Block::template reset_empty(); newBlock->next = nullptr; // Insert the new block into the index idxEntry->value.store(newBlock, std::memory_order_relaxed); // Store the chain of blocks so that we can undo if later allocations fail, // and so that we can find the blocks when we do the actual enqueueing if ((startTailIndex & static_cast(BLOCK_SIZE - 1)) != 0 || firstAllocatedBlock != nullptr) { assert(this->tailBlock != nullptr); this->tailBlock->next = newBlock; } this->tailBlock = newBlock; endBlock = newBlock; firstAllocatedBlock = firstAllocatedBlock == nullptr ? newBlock : firstAllocatedBlock; } while (blockBaseDiff > 0); } // Enqueue, one block at a time index_t newTailIndex = startTailIndex + static_cast(count); currentTailIndex = startTailIndex; this->tailBlock = startBlock; assert((startTailIndex & static_cast(BLOCK_SIZE - 1)) != 0 || firstAllocatedBlock != nullptr || count == 0); if ((startTailIndex & static_cast(BLOCK_SIZE - 1)) == 0 && firstAllocatedBlock != nullptr) { this->tailBlock = firstAllocatedBlock; } while (true) { auto stopIndex = (currentTailIndex & ~static_cast(BLOCK_SIZE - 1)) + static_cast(BLOCK_SIZE); if (details::circular_less_than(newTailIndex, stopIndex)) { stopIndex = newTailIndex; } if (MOODYCAMEL_NOEXCEPT_CTOR(T, decltype(*itemFirst), new ((T*)nullptr) T(details::deref_noexcept(itemFirst)))) { while (currentTailIndex != stopIndex) { new ((*this->tailBlock)[currentTailIndex++]) T(*itemFirst++); } } else { MOODYCAMEL_TRY { while (currentTailIndex != stopIndex) { new ((*this->tailBlock)[currentTailIndex]) T(details::nomove_if<(bool)!MOODYCAMEL_NOEXCEPT_CTOR(T, decltype(*itemFirst), new ((T*)nullptr) T(details::deref_noexcept(itemFirst)))>::eval(*itemFirst)); ++currentTailIndex; ++itemFirst; } } MOODYCAMEL_CATCH (...) { auto constructedStopIndex = currentTailIndex; auto lastBlockEnqueued = this->tailBlock; if (!details::is_trivially_destructible::value) { auto block = startBlock; if ((startTailIndex & static_cast(BLOCK_SIZE - 1)) == 0) { block = firstAllocatedBlock; } currentTailIndex = startTailIndex; while (true) { stopIndex = (currentTailIndex & ~static_cast(BLOCK_SIZE - 1)) + static_cast(BLOCK_SIZE); if (details::circular_less_than(constructedStopIndex, stopIndex)) { stopIndex = constructedStopIndex; } while (currentTailIndex != stopIndex) { (*block)[currentTailIndex++]->~T(); } if (block == lastBlockEnqueued) { break; } block = block->next; } } currentTailIndex = (startTailIndex - 1) & ~static_cast(BLOCK_SIZE - 1); for (auto block = firstAllocatedBlock; block != nullptr; block = block->next) { currentTailIndex += static_cast(BLOCK_SIZE); auto idxEntry = get_block_index_entry_for_index(currentTailIndex); idxEntry->value.store(nullptr, std::memory_order_relaxed); rewind_block_index_tail(); } this->parent->add_blocks_to_free_list(firstAllocatedBlock); this->tailBlock = startBlock; MOODYCAMEL_RETHROW; } } if (this->tailBlock == endBlock) { assert(currentTailIndex == newTailIndex); break; } this->tailBlock = this->tailBlock->next; } this->tailIndex.store(newTailIndex, std::memory_order_release); return true; } template size_t dequeue_bulk(It& itemFirst, size_t max) { auto tail = this->tailIndex.load(std::memory_order_relaxed); auto overcommit = this->dequeueOvercommit.load(std::memory_order_relaxed); auto desiredCount = static_cast(tail - (this->dequeueOptimisticCount.load(std::memory_order_relaxed) - overcommit)); if (details::circular_less_than(0, desiredCount)) { desiredCount = desiredCount < max ? desiredCount : max; std::atomic_thread_fence(std::memory_order_acquire); auto myDequeueCount = this->dequeueOptimisticCount.fetch_add(desiredCount, std::memory_order_relaxed); tail = this->tailIndex.load(std::memory_order_acquire); auto actualCount = static_cast(tail - (myDequeueCount - overcommit)); if (details::circular_less_than(0, actualCount)) { actualCount = desiredCount < actualCount ? desiredCount : actualCount; if (actualCount < desiredCount) { this->dequeueOvercommit.fetch_add(desiredCount - actualCount, std::memory_order_release); } // Get the first index. Note that since there's guaranteed to be at least actualCount elements, this // will never exceed tail. auto firstIndex = this->headIndex.fetch_add(actualCount, std::memory_order_acq_rel); // Iterate the blocks and dequeue auto index = firstIndex; BlockIndexHeader* localBlockIndex; auto indexIndex = get_block_index_index_for_index(index, localBlockIndex); do { auto blockStartIndex = index; auto endIndex = (index & ~static_cast(BLOCK_SIZE - 1)) + static_cast(BLOCK_SIZE); endIndex = details::circular_less_than(firstIndex + static_cast(actualCount), endIndex) ? firstIndex + static_cast(actualCount) : endIndex; auto entry = localBlockIndex->index[indexIndex]; auto block = entry->value.load(std::memory_order_relaxed); if (MOODYCAMEL_NOEXCEPT_ASSIGN(T, T&&, details::deref_noexcept(itemFirst) = std::move((*(*block)[index])))) { while (index != endIndex) { auto& el = *((*block)[index]); *itemFirst++ = std::move(el); el.~T(); ++index; } } else { MOODYCAMEL_TRY { while (index != endIndex) { auto& el = *((*block)[index]); *itemFirst = std::move(el); ++itemFirst; el.~T(); ++index; } } MOODYCAMEL_CATCH (...) { do { entry = localBlockIndex->index[indexIndex]; block = entry->value.load(std::memory_order_relaxed); while (index != endIndex) { (*block)[index++]->~T(); } if (block->ConcurrentQueue::Block::template set_many_empty(blockStartIndex, static_cast(endIndex - blockStartIndex))) { #ifdef MCDBGQ_NOLOCKFREE_IMPLICITPRODBLOCKINDEX debug::DebugLock lock(mutex); #endif entry->value.store(nullptr, std::memory_order_relaxed); this->parent->add_block_to_free_list(block); } indexIndex = (indexIndex + 1) & (localBlockIndex->capacity - 1); blockStartIndex = index; endIndex = (index & ~static_cast(BLOCK_SIZE - 1)) + static_cast(BLOCK_SIZE); endIndex = details::circular_less_than(firstIndex + static_cast(actualCount), endIndex) ? firstIndex + static_cast(actualCount) : endIndex; } while (index != firstIndex + actualCount); MOODYCAMEL_RETHROW; } } if (block->ConcurrentQueue::Block::template set_many_empty(blockStartIndex, static_cast(endIndex - blockStartIndex))) { { #ifdef MCDBGQ_NOLOCKFREE_IMPLICITPRODBLOCKINDEX debug::DebugLock lock(mutex); #endif // Note that the set_many_empty above did a release, meaning that anybody who acquires the block // we're about to free can use it safely since our writes (and reads!) will have happened-before then. entry->value.store(nullptr, std::memory_order_relaxed); } this->parent->add_block_to_free_list(block); // releases the above store } indexIndex = (indexIndex + 1) & (localBlockIndex->capacity - 1); } while (index != firstIndex + actualCount); return actualCount; } else { this->dequeueOvercommit.fetch_add(desiredCount, std::memory_order_release); } } return 0; } private: // The block size must be > 1, so any number with the low bit set is an invalid block base index static const index_t INVALID_BLOCK_BASE = 1; struct BlockIndexEntry { std::atomic key; std::atomic value; }; struct BlockIndexHeader { size_t capacity; std::atomic tail; BlockIndexEntry* entries; BlockIndexEntry** index; BlockIndexHeader* prev; }; template inline bool insert_block_index_entry(BlockIndexEntry*& idxEntry, index_t blockStartIndex) { auto localBlockIndex = blockIndex.load(std::memory_order_relaxed); // We're the only writer thread, relaxed is OK if (localBlockIndex == nullptr) { return false; // this can happen if new_block_index failed in the constructor } auto newTail = (localBlockIndex->tail.load(std::memory_order_relaxed) + 1) & (localBlockIndex->capacity - 1); idxEntry = localBlockIndex->index[newTail]; if (idxEntry->key.load(std::memory_order_relaxed) == INVALID_BLOCK_BASE || idxEntry->value.load(std::memory_order_relaxed) == nullptr) { idxEntry->key.store(blockStartIndex, std::memory_order_relaxed); localBlockIndex->tail.store(newTail, std::memory_order_release); return true; } // No room in the old block index, try to allocate another one! MOODYCAMEL_CONSTEXPR_IF (allocMode == CannotAlloc) { return false; } else if (!new_block_index()) { return false; } localBlockIndex = blockIndex.load(std::memory_order_relaxed); newTail = (localBlockIndex->tail.load(std::memory_order_relaxed) + 1) & (localBlockIndex->capacity - 1); idxEntry = localBlockIndex->index[newTail]; assert(idxEntry->key.load(std::memory_order_relaxed) == INVALID_BLOCK_BASE); idxEntry->key.store(blockStartIndex, std::memory_order_relaxed); localBlockIndex->tail.store(newTail, std::memory_order_release); return true; } inline void rewind_block_index_tail() { auto localBlockIndex = blockIndex.load(std::memory_order_relaxed); localBlockIndex->tail.store((localBlockIndex->tail.load(std::memory_order_relaxed) - 1) & (localBlockIndex->capacity - 1), std::memory_order_relaxed); } inline BlockIndexEntry* get_block_index_entry_for_index(index_t index) const { BlockIndexHeader* localBlockIndex; auto idx = get_block_index_index_for_index(index, localBlockIndex); return localBlockIndex->index[idx]; } inline size_t get_block_index_index_for_index(index_t index, BlockIndexHeader*& localBlockIndex) const { #ifdef MCDBGQ_NOLOCKFREE_IMPLICITPRODBLOCKINDEX debug::DebugLock lock(mutex); #endif index &= ~static_cast(BLOCK_SIZE - 1); localBlockIndex = blockIndex.load(std::memory_order_acquire); auto tail = localBlockIndex->tail.load(std::memory_order_acquire); auto tailBase = localBlockIndex->index[tail]->key.load(std::memory_order_relaxed); assert(tailBase != INVALID_BLOCK_BASE); // Note: Must use division instead of shift because the index may wrap around, causing a negative // offset, whose negativity we want to preserve auto offset = static_cast(static_cast::type>(index - tailBase) / static_cast::type>(BLOCK_SIZE)); size_t idx = (tail + offset) & (localBlockIndex->capacity - 1); assert(localBlockIndex->index[idx]->key.load(std::memory_order_relaxed) == index && localBlockIndex->index[idx]->value.load(std::memory_order_relaxed) != nullptr); return idx; } bool new_block_index() { auto prev = blockIndex.load(std::memory_order_relaxed); size_t prevCapacity = prev == nullptr ? 0 : prev->capacity; auto entryCount = prev == nullptr ? nextBlockIndexCapacity : prevCapacity; auto raw = static_cast((Traits::malloc)( sizeof(BlockIndexHeader) + std::alignment_of::value - 1 + sizeof(BlockIndexEntry) * entryCount + std::alignment_of::value - 1 + sizeof(BlockIndexEntry*) * nextBlockIndexCapacity)); if (raw == nullptr) { return false; } auto header = new (raw) BlockIndexHeader; auto entries = reinterpret_cast(details::align_for(raw + sizeof(BlockIndexHeader))); auto index = reinterpret_cast(details::align_for(reinterpret_cast(entries) + sizeof(BlockIndexEntry) * entryCount)); if (prev != nullptr) { auto prevTail = prev->tail.load(std::memory_order_relaxed); auto prevPos = prevTail; size_t i = 0; do { prevPos = (prevPos + 1) & (prev->capacity - 1); index[i++] = prev->index[prevPos]; } while (prevPos != prevTail); assert(i == prevCapacity); } for (size_t i = 0; i != entryCount; ++i) { new (entries + i) BlockIndexEntry; entries[i].key.store(INVALID_BLOCK_BASE, std::memory_order_relaxed); index[prevCapacity + i] = entries + i; } header->prev = prev; header->entries = entries; header->index = index; header->capacity = nextBlockIndexCapacity; header->tail.store((prevCapacity - 1) & (nextBlockIndexCapacity - 1), std::memory_order_relaxed); blockIndex.store(header, std::memory_order_release); nextBlockIndexCapacity <<= 1; return true; } private: size_t nextBlockIndexCapacity; std::atomic blockIndex; #ifdef MOODYCAMEL_CPP11_THREAD_LOCAL_SUPPORTED public: details::ThreadExitListener threadExitListener; private: #endif #ifdef MOODYCAMEL_QUEUE_INTERNAL_DEBUG public: ImplicitProducer* nextImplicitProducer; private: #endif #ifdef MCDBGQ_NOLOCKFREE_IMPLICITPRODBLOCKINDEX mutable debug::DebugMutex mutex; #endif #ifdef MCDBGQ_TRACKMEM friend struct MemStats; #endif }; ////////////////////////////////// // Block pool manipulation ////////////////////////////////// void populate_initial_block_list(size_t blockCount) { initialBlockPoolSize = blockCount; if (initialBlockPoolSize == 0) { initialBlockPool = nullptr; return; } initialBlockPool = create_array(blockCount); if (initialBlockPool == nullptr) { initialBlockPoolSize = 0; } for (size_t i = 0; i < initialBlockPoolSize; ++i) { initialBlockPool[i].dynamicallyAllocated = false; } } inline Block* try_get_block_from_initial_pool() { if (initialBlockPoolIndex.load(std::memory_order_relaxed) >= initialBlockPoolSize) { return nullptr; } auto index = initialBlockPoolIndex.fetch_add(1, std::memory_order_relaxed); return index < initialBlockPoolSize ? (initialBlockPool + index) : nullptr; } inline void add_block_to_free_list(Block* block) { #ifdef MCDBGQ_TRACKMEM block->owner = nullptr; #endif freeList.add(block); } inline void add_blocks_to_free_list(Block* block) { while (block != nullptr) { auto next = block->next; add_block_to_free_list(block); block = next; } } inline Block* try_get_block_from_free_list() { return freeList.try_get(); } // Gets a free block from one of the memory pools, or allocates a new one (if applicable) template Block* requisition_block() { auto block = try_get_block_from_initial_pool(); if (block != nullptr) { return block; } block = try_get_block_from_free_list(); if (block != nullptr) { return block; } MOODYCAMEL_CONSTEXPR_IF (canAlloc == CanAlloc) { return create(); } else { return nullptr; } } #ifdef MCDBGQ_TRACKMEM public: struct MemStats { size_t allocatedBlocks; size_t usedBlocks; size_t freeBlocks; size_t ownedBlocksExplicit; size_t ownedBlocksImplicit; size_t implicitProducers; size_t explicitProducers; size_t elementsEnqueued; size_t blockClassBytes; size_t queueClassBytes; size_t implicitBlockIndexBytes; size_t explicitBlockIndexBytes; friend class ConcurrentQueue; private: static MemStats getFor(ConcurrentQueue* q) { MemStats stats = { 0 }; stats.elementsEnqueued = q->size_approx(); auto block = q->freeList.head_unsafe(); while (block != nullptr) { ++stats.allocatedBlocks; ++stats.freeBlocks; block = block->freeListNext.load(std::memory_order_relaxed); } for (auto ptr = q->producerListTail.load(std::memory_order_acquire); ptr != nullptr; ptr = ptr->next_prod()) { bool implicit = dynamic_cast(ptr) != nullptr; stats.implicitProducers += implicit ? 1 : 0; stats.explicitProducers += implicit ? 0 : 1; if (implicit) { auto prod = static_cast(ptr); stats.queueClassBytes += sizeof(ImplicitProducer); auto head = prod->headIndex.load(std::memory_order_relaxed); auto tail = prod->tailIndex.load(std::memory_order_relaxed); auto hash = prod->blockIndex.load(std::memory_order_relaxed); if (hash != nullptr) { for (size_t i = 0; i != hash->capacity; ++i) { if (hash->index[i]->key.load(std::memory_order_relaxed) != ImplicitProducer::INVALID_BLOCK_BASE && hash->index[i]->value.load(std::memory_order_relaxed) != nullptr) { ++stats.allocatedBlocks; ++stats.ownedBlocksImplicit; } } stats.implicitBlockIndexBytes += hash->capacity * sizeof(typename ImplicitProducer::BlockIndexEntry); for (; hash != nullptr; hash = hash->prev) { stats.implicitBlockIndexBytes += sizeof(typename ImplicitProducer::BlockIndexHeader) + hash->capacity * sizeof(typename ImplicitProducer::BlockIndexEntry*); } } for (; details::circular_less_than(head, tail); head += BLOCK_SIZE) { //auto block = prod->get_block_index_entry_for_index(head); ++stats.usedBlocks; } } else { auto prod = static_cast(ptr); stats.queueClassBytes += sizeof(ExplicitProducer); auto tailBlock = prod->tailBlock; bool wasNonEmpty = false; if (tailBlock != nullptr) { auto block = tailBlock; do { ++stats.allocatedBlocks; if (!block->ConcurrentQueue::Block::template is_empty() || wasNonEmpty) { ++stats.usedBlocks; wasNonEmpty = wasNonEmpty || block != tailBlock; } ++stats.ownedBlocksExplicit; block = block->next; } while (block != tailBlock); } auto index = prod->blockIndex.load(std::memory_order_relaxed); while (index != nullptr) { stats.explicitBlockIndexBytes += sizeof(typename ExplicitProducer::BlockIndexHeader) + index->size * sizeof(typename ExplicitProducer::BlockIndexEntry); index = static_cast(index->prev); } } } auto freeOnInitialPool = q->initialBlockPoolIndex.load(std::memory_order_relaxed) >= q->initialBlockPoolSize ? 0 : q->initialBlockPoolSize - q->initialBlockPoolIndex.load(std::memory_order_relaxed); stats.allocatedBlocks += freeOnInitialPool; stats.freeBlocks += freeOnInitialPool; stats.blockClassBytes = sizeof(Block) * stats.allocatedBlocks; stats.queueClassBytes += sizeof(ConcurrentQueue); return stats; } }; // For debugging only. Not thread-safe. MemStats getMemStats() { return MemStats::getFor(this); } private: friend struct MemStats; #endif ////////////////////////////////// // Producer list manipulation ////////////////////////////////// ProducerBase* recycle_or_create_producer(bool isExplicit) { bool recycled; return recycle_or_create_producer(isExplicit, recycled); } ProducerBase* recycle_or_create_producer(bool isExplicit, bool& recycled) { #ifdef MCDBGQ_NOLOCKFREE_IMPLICITPRODHASH debug::DebugLock lock(implicitProdMutex); #endif // Try to re-use one first for (auto ptr = producerListTail.load(std::memory_order_acquire); ptr != nullptr; ptr = ptr->next_prod()) { if (ptr->inactive.load(std::memory_order_relaxed) && ptr->isExplicit == isExplicit) { bool expected = true; if (ptr->inactive.compare_exchange_strong(expected, /* desired */ ## duckdb-d1dc88f950d456d72493df452dabdcd13aa413dd/third_party/concurrentqueue/lightweightsemaphore.h // Provides an efficient implementation of a semaphore (LightweightSemaphore). // This is an extension of Jeff Preshing's sempahore implementation (licensed // under the terms of its separate zlib license) that has been adapted and // extended by Cameron Desrochers. #pragma once #include // For std::size_t #include #include // For std::make_signed #if defined(_WIN32) // Avoid including windows.h in a header; we only need a handful of // items, so we'll redeclare them here (this is relatively safe since // the API generally has to remain stable between Windows versions). // I know this is an ugly hack but it still beats polluting the global // namespace with thousands of generic names or adding a .cpp for nothing. extern "C" { struct _SECURITY_ATTRIBUTES; __declspec(dllimport) void* __stdcall CreateSemaphoreW(_SECURITY_ATTRIBUTES* lpSemaphoreAttributes, long lInitialCount, long lMaximumCount, const wchar_t* lpName); __declspec(dllimport) int __stdcall CloseHandle(void* hObject); __declspec(dllimport) unsigned long __stdcall WaitForSingleObject(void* hHandle, unsigned long dwMilliseconds); __declspec(dllimport) int __stdcall ReleaseSemaphore(void* hSemaphore, long lReleaseCount, long* lpPreviousCount); } #elif defined(__MACH__) #include #elif defined(__unix__) #include #include #elif defined(__MVS__) #include #include #endif namespace duckdb_moodycamel { namespace details { // Code in the mpmc_sema namespace below is an adaptation of Jeff Preshing's // portable + lightweight semaphore implementations, originally from // https://github.com/preshing/cpp11-on-multicore/blob/master/common/sema.h // LICENSE: // Copyright (c) 2015 Jeff Preshing // // This software is provided 'as-is', without any express or implied // warranty. In no event will the authors be held liable for any damages // arising from the use of this software. // // Permission is granted to anyone to use this software for any purpose, // including commercial applications, and to alter it and redistribute it // freely, subject to the following restrictions: // // 1. The origin of this software must not be misrepresented; you must not // claim that you wrote the original software. If you use this software // in a product, an acknowledgement in the product documentation would be // appreciated but is not required. // 2. Altered source versions must be plainly marked as such, and must not be // misrepresented as being the original software. // 3. This notice may not be removed or altered from any source distribution. #if defined(_WIN32) class Semaphore { private: void* m_hSema; Semaphore(const Semaphore& other) MOODYCAMEL_DELETE_FUNCTION; Semaphore& operator=(const Semaphore& other) MOODYCAMEL_DELETE_FUNCTION; public: Semaphore(int initialCount = 0) { assert(initialCount >= 0); const long maxLong = 0x7fffffff; m_hSema = CreateSemaphoreW(nullptr, initialCount, maxLong, nullptr); assert(m_hSema); } ~Semaphore() { CloseHandle(m_hSema); } bool wait() { const unsigned long infinite = 0xffffffff; return WaitForSingleObject(m_hSema, infinite) == 0; } bool try_wait() { return WaitForSingleObject(m_hSema, 0) == 0; } bool timed_wait(std::uint64_t usecs) { return WaitForSingleObject(m_hSema, (unsigned long)(usecs / 1000)) == 0; } void signal(int count = 1) { while (!ReleaseSemaphore(m_hSema, count, nullptr)); } }; #elif defined(__MACH__) //--------------------------------------------------------- // Semaphore (Apple iOS and OSX) // Can't use POSIX semaphores due to http://lists.apple.com/archives/darwin-kernel/2009/Apr/msg00010.html //--------------------------------------------------------- class Semaphore { private: semaphore_t m_sema; Semaphore(const Semaphore& other) MOODYCAMEL_DELETE_FUNCTION; Semaphore& operator=(const Semaphore& other) MOODYCAMEL_DELETE_FUNCTION; public: Semaphore(int initialCount = 0) { assert(initialCount >= 0); kern_return_t rc = semaphore_create(mach_task_self(), &m_sema, SYNC_POLICY_FIFO, initialCount); assert(rc == KERN_SUCCESS); (void)rc; } ~Semaphore() { semaphore_destroy(mach_task_self(), m_sema); } bool wait() { return semaphore_wait(m_sema) == KERN_SUCCESS; } bool try_wait() { return timed_wait(0); } bool timed_wait(std::uint64_t timeout_usecs) { mach_timespec_t ts; ts.tv_sec = static_cast(timeout_usecs / 1000000); ts.tv_nsec = (timeout_usecs % 1000000) * 1000; // added in OSX 10.10: https://developer.apple.com/library/prerelease/mac/documentation/General/Reference/APIDiffsMacOSX10_10SeedDiff/modules/Darwin.html kern_return_t rc = semaphore_timedwait(m_sema, ts); return rc == KERN_SUCCESS; } void signal() { while (semaphore_signal(m_sema) != KERN_SUCCESS); } void signal(int count) { while (count-- > 0) { while (semaphore_signal(m_sema) != KERN_SUCCESS); } } }; #elif defined(__unix__) || defined(__MVS__) //--------------------------------------------------------- // Semaphore (POSIX, Linux, zOS aka MVS) //--------------------------------------------------------- class Semaphore { private: sem_t m_sema; Semaphore(const Semaphore& other) MOODYCAMEL_DELETE_FUNCTION; Semaphore& operator=(const Semaphore& other) MOODYCAMEL_DELETE_FUNCTION; public: Semaphore(int initialCount = 0) { assert(initialCount >= 0); int rc = sem_init(&m_sema, 0, initialCount); assert(rc == 0); (void)rc; } ~Semaphore() { sem_destroy(&m_sema); } bool wait() { // http://stackoverflow.com/questions/2013181/gdb-causes-sem-wait-to-fail-with-eintr-error int rc; do { rc = sem_wait(&m_sema); } while (rc == -1 && errno == EINTR); return rc == 0; } bool try_wait() { int rc; do { rc = sem_trywait(&m_sema); } while (rc == -1 && errno == EINTR); return rc == 0; } bool timed_wait(std::uint64_t usecs) { struct timespec ts; const int usecs_in_1_sec = 1000000; const int nsecs_in_1_sec = 1000000000; // sem_timedwait needs an absolute time // hence we need to first obtain the current time // and then add the maximum time we want to wait // we want to avoid clock_gettime because of linking issues // chrono -> timespec conversion from here: https://embeddedartistry.com/blog/2019/01/31/converting-between-timespec-stdchrono/ auto current_time = std::chrono::system_clock::now(); auto secs = std::chrono::time_point_cast(current_time); auto ns = std::chrono::time_point_cast(current_time) - std::chrono::time_point_cast(secs); ts.tv_sec = secs.time_since_epoch().count(); ts.tv_nsec = ns.count(); // now add the time we want to wait ts.tv_sec += usecs / usecs_in_1_sec; ts.tv_nsec += (usecs % usecs_in_1_sec) * 1000; // sem_timedwait bombs if you have more than 1e9 in tv_nsec // so we have to clean things up before passing it in if (ts.tv_nsec >= nsecs_in_1_sec) { ts.tv_nsec -= nsecs_in_1_sec; ++ts.tv_sec; } int rc; do { rc = sem_timedwait(&m_sema, &ts); } while (rc == -1 && errno == EINTR); return rc == 0; } void signal() { while (sem_post(&m_sema) == -1); } void signal(int count) { while (count-- > 0) { while (sem_post(&m_sema) == -1); } } }; #else #error Unsupported platform! (No semaphore wrapper available) #endif } // end namespace details //--------------------------------------------------------- // LightweightSemaphore //--------------------------------------------------------- class LightweightSemaphore { public: typedef std::make_signed::type ssize_t; private: std::atomic m_count; details::Semaphore m_sema; bool waitWithPartialSpinning(std::int64_t timeout_usecs = -1) { ssize_t oldCount; // Is there a better way to set the initial spin count? // If we lower it to 1000, testBenaphore becomes 15x slower on my Core i7-5930K Windows PC, // as threads start hitting the kernel semaphore. int spin = 10000; while (--spin >= 0) { oldCount = m_count.load(std::memory_order_relaxed); if ((oldCount > 0) && m_count.compare_exchange_strong(oldCount, oldCount - 1, std::memory_order_acquire, std::memory_order_relaxed)) return true; std::atomic_signal_fence(std::memory_order_acquire); // Prevent the compiler from collapsing the loop. } oldCount = m_count.fetch_sub(1, std::memory_order_acquire); if (oldCount > 0) return true; if (timeout_usecs < 0) return m_sema.wait(); if (m_sema.timed_wait((std::uint64_t)timeout_usecs)) return true; // At this point, we've timed out waiting for the semaphore, but the // count is still decremented indicating we may still be waiting on // it. So we have to re-adjust the count, but only if the semaphore // wasn't signaled enough times for us too since then. If it was, we // need to release the semaphore too. while (true) { oldCount = m_count.load(std::memory_order_acquire); if (oldCount >= 0 && m_sema.try_wait()) return true; if (oldCount < 0 && m_count.compare_exchange_strong(oldCount, oldCount + 1, std::memory_order_relaxed, std::memory_order_relaxed)) return false; } } ssize_t waitManyWithPartialSpinning(ssize_t max, std::int64_t timeout_usecs = -1) { assert(max > 0); ssize_t oldCount; int spin = 10000; while (--spin >= 0) { oldCount = m_count.load(std::memory_order_relaxed); if (oldCount > 0) { ssize_t newCount = oldCount > max ? oldCount - max : 0; if (m_count.compare_exchange_strong(oldCount, newCount, std::memory_order_acquire, std::memory_order_relaxed)) return oldCount - newCount; } std::atomic_signal_fence(std::memory_order_acquire); } oldCount = m_count.fetch_sub(1, std::memory_order_acquire); if (oldCount <= 0) { if (timeout_usecs < 0) { if (!m_sema.wait()) return 0; } else if (!m_sema.timed_wait((std::uint64_t)timeout_usecs)) { while (true) { oldCount = m_count.load(std::memory_order_acquire); if (oldCount >= 0 && m_sema.try_wait()) break; if (oldCount < 0 && m_count.compare_exchange_strong(oldCount, oldCount + 1, std::memory_order_relaxed, std::memory_order_relaxed)) return 0; } } } if (max > 1) return 1 + tryWaitMany(max - 1); return 1; } public: LightweightSemaphore(ssize_t initialCount = 0) : m_count(initialCount) { assert(initialCount >= 0); } bool tryWait() { ssize_t oldCount = m_count.load(std::memory_order_relaxed); while (oldCount > 0) { if (m_count.compare_exchange_weak(oldCount, oldCount - 1, std::memory_order_acquire, std::memory_order_relaxed)) return true; } return false; } bool wait() { return tryWait() || waitWithPartialSpinning(); } bool wait(std::int64_t timeout_usecs) { return tryWait() || waitWithPartialSpinning(timeout_usecs); } // Acquires between 0 and (greedily) max, inclusive ssize_t tryWaitMany(ssize_t max) { assert(max >= 0); ssize_t oldCount = m_count.load(std::memory_order_relaxed); while (oldCount > 0) { ssize_t newCount = oldCount > max ? oldCount - max : 0; if (m_count.compare_exchange_weak(oldCount, newCount, std::memory_order_acquire, std::memory_order_relaxed)) return oldCount - newCount; } return 0; } // Acquires at least one, and (greedily) at most max ssize_t waitMany(ssize_t max, std::int64_t timeout_usecs) { assert(max >= 0); ssize_t result = tryWaitMany(max); if (result == 0 && max > 0) result = waitManyWithPartialSpinning(max, timeout_usecs); return result; } ssize_t waitMany(ssize_t max) { ssize_t result = waitMany(max, -1); assert(result > 0); return result; } void signal(ssize_t count = 1) { assert(count >= 0); ssize_t oldCount = m_count.fetch_add(count, std::memory_order_release); ssize_t toRelease = -oldCount < count ? -oldCount : count; if (toRelease > 0) { m_sema.signal((int)toRelease); } } ssize_t availableApprox() const { ssize_t count = m_count.load(std::memory_order_relaxed); return count > 0 ? count : 0; } }; } // end namespace duckdb_moodycamel */ ## duckdb-d1dc88f950d456d72493df452dabdcd13aa413dd/third_party/pdqsort/pdqsort.h /* pdqsort.h - Pattern-defeating quicksort. Copyright (c) 2021 Orson Peters This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. */ ## duckdb-d1dc88f950d456d72493df452dabdcd13aa413dd/third_party/ska_sort/ska_sort.hpp // Copyright Malte Skarupke 2016. // Distributed under the Boost Software License, Version 1.0. // (See http://www.boost.org/LICENSE_1_0.txt) #pragma once #include #include #include #include #include #include "pdqsort.h" #include "vergesort.h" namespace duckdb_ska_sort { namespace detail { template void counting_sort_impl(It begin, It end, OutIt out_begin, ExtractKey && extract_key) { count_type counts[256] = {}; for (It it = begin; it != end; ++it) { ++counts[extract_key(*it)]; } count_type nonzero = 0; count_type total = 0; for (count_type * it = counts, * end_it = counts + 256; it != end_it; ++it) { count_type old_count = *it; nonzero += old_count != 0; *it = total; total += old_count; } if (nonzero == 1) { return; // LNK: skip moving data if all belong to same bucket } for (; begin != end; ++begin) { std::uint8_t key = extract_key(*begin); out_begin[counts[key]] = std::move(*begin); ++counts[key]; } } template void counting_sort_impl(It begin, It end, OutIt out_begin, ExtractKey && extract_key) { counting_sort_impl(begin, end, out_begin, extract_key); } inline bool to_unsigned_or_bool(bool b) { return b; } inline unsigned char to_unsigned_or_bool(unsigned char c) { return c; } inline unsigned char to_unsigned_or_bool(signed char c) { return static_cast(c) + 128; } inline unsigned char to_unsigned_or_bool(char c) { return static_cast(c); } inline std::uint16_t to_unsigned_or_bool(char16_t c) { return static_cast(c); } inline std::uint32_t to_unsigned_or_bool(char32_t c) { return static_cast(c); } inline std::uint32_t to_unsigned_or_bool(wchar_t c) { return static_cast(c); } inline unsigned short to_unsigned_or_bool(short i) { return static_cast(i) + static_cast(1 << (sizeof(short) * 8 - 1)); } inline unsigned short to_unsigned_or_bool(unsigned short i) { return i; } inline unsigned int to_unsigned_or_bool(int i) { return static_cast(i) + static_cast(1 << (sizeof(int) * 8 - 1)); } inline unsigned int to_unsigned_or_bool(unsigned int i) { return i; } inline unsigned long to_unsigned_or_bool(long l) { return static_cast(l) + static_cast(1l << (sizeof(long) * 8 - 1)); } inline unsigned long to_unsigned_or_bool(unsigned long l) { return l; } inline unsigned long long to_unsigned_or_bool(long long l) { return static_cast(l) + static_cast(1ll << (sizeof(long long) * 8 - 1)); } inline unsigned long long to_unsigned_or_bool(unsigned long long l) { return l; } inline std::uint32_t to_unsigned_or_bool(float f) { union { float f; std::uint32_t u; } as_union = { f }; std::uint32_t sign_bit = static_cast(-std::int32_t(as_union.u >> 31)); return as_union.u ^ (sign_bit | 0x80000000); } inline std::uint64_t to_unsigned_or_bool(double f) { union { double d; std::uint64_t u; } as_union = { f }; std::uint64_t sign_bit = static_cast(-std::int64_t(as_union.u >> 63)); return as_union.u ^ (sign_bit | 0x8000000000000000); } template inline size_t to_unsigned_or_bool(T * ptr) { return reinterpret_cast(ptr); } // template // struct SizedRadixSorter; // // template<> // struct SizedRadixSorter<1> // { // template // static bool sort(It begin, It end, OutIt buffer_begin, ExtractKey && extract_key) // { // counting_sort_impl(begin, end, buffer_begin, [&](typename std::remove_reference::type & o) // { // return to_unsigned_or_bool(extract_key(o)); // }); // return true; // } // // static constexpr size_t pass_count = 2; // }; // template<> // struct SizedRadixSorter<2> // { // template // static bool sort(It begin, It end, OutIt buffer_begin, ExtractKey && extract_key) // { // size_t num_elements = end - begin; // if (num_elements <= (1ll << 32)) // return sort_inline(begin, end, buffer_begin, buffer_begin + num_elements, extract_key); // else // return sort_inline(begin, end, buffer_begin, buffer_begin + num_elements, extract_key); // } // // template // static bool sort_inline(It begin, It end, OutIt out_begin, OutIt out_end, ExtractKey && extract_key) // { // count_type counts0[256] = {}; // count_type counts1[256] = {}; // // for (It it = begin; it != end; ++it) // { // uint16_t key = to_unsigned_or_bool(extract_key(*it)); // ++counts0[key & 0xff]; // ++counts1[(key >> 8) & 0xff]; // } // count_type total0 = 0; // count_type total1 = 0; // for (int i = 0; i < 256; ++i) // { // count_type old_count0 = counts0[i]; // count_type old_count1 = counts1[i]; // counts0[i] = total0; // counts1[i] = total1; // total0 += old_count0; // total1 += old_count1; // } // for (It it = begin; it != end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)); // out_begin[counts0[key]++] = std::move(*it); // } // for (OutIt it = out_begin; it != out_end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)) >> 8; // begin[counts1[key]++] = std::move(*it); // } // return false; // } // // static constexpr size_t pass_count = 3; // }; // template<> // struct SizedRadixSorter<4> // { // template // static bool sort(It begin, It end, OutIt buffer_begin, ExtractKey && extract_key) // { // size_t num_elements = end - begin; // if (num_elements <= (1ll << 32)) // return sort_inline(begin, end, buffer_begin, buffer_begin + num_elements, extract_key); // else // return sort_inline(begin, end, buffer_begin, buffer_begin + num_elements, extract_key); // } // template // static bool sort_inline(It begin, It end, OutIt out_begin, OutIt out_end, ExtractKey && extract_key) // { // count_type counts0[256] = {}; // count_type counts1[256] = {}; // count_type counts2[256] = {}; // count_type counts3[256] = {}; // // for (It it = begin; it != end; ++it) // { // uint32_t key = to_unsigned_or_bool(extract_key(*it)); // ++counts0[key & 0xff]; // ++counts1[(key >> 8) & 0xff]; // ++counts2[(key >> 16) & 0xff]; // ++counts3[(key >> 24) & 0xff]; // } // count_type total0 = 0; // count_type total1 = 0; // count_type total2 = 0; // count_type total3 = 0; // for (int i = 0; i < 256; ++i) // { // count_type old_count0 = counts0[i]; // count_type old_count1 = counts1[i]; // count_type old_count2 = counts2[i]; // count_type old_count3 = counts3[i]; // counts0[i] = total0; // counts1[i] = total1; // counts2[i] = total2; // counts3[i] = total3; // total0 += old_count0; // total1 += old_count1; // total2 += old_count2; // total3 += old_count3; // } // for (It it = begin; it != end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)); // out_begin[counts0[key]++] = std::move(*it); // } // for (OutIt it = out_begin; it != out_end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)) >> 8; // begin[counts1[key]++] = std::move(*it); // } // for (It it = begin; it != end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)) >> 16; // out_begin[counts2[key]++] = std::move(*it); // } // for (OutIt it = out_begin; it != out_end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)) >> 24; // begin[counts3[key]++] = std::move(*it); // } // return false; // } // // static constexpr size_t pass_count = 5; // }; // template<> // struct SizedRadixSorter<8> // { // template // static bool sort(It begin, It end, OutIt buffer_begin, ExtractKey && extract_key) // { // size_t num_elements = end - begin; // if (num_elements <= (1ll << 32)) // return sort_inline(begin, end, buffer_begin, buffer_begin + num_elements, extract_key); // else // return sort_inline(begin, end, buffer_begin, buffer_begin + num_elements, extract_key); // } // template // static bool sort_inline(It begin, It end, OutIt out_begin, OutIt out_end, ExtractKey && extract_key) // { // count_type counts0[256] = {}; // count_type counts1[256] = {}; // count_type counts2[256] = {}; // count_type counts3[256] = {}; // count_type counts4[256] = {}; // count_type counts5[256] = {}; // count_type counts6[256] = {}; // count_type counts7[256] = {}; // // for (It it = begin; it != end; ++it) // { // uint64_t key = to_unsigned_or_bool(extract_key(*it)); // ++counts0[key & 0xff]; // ++counts1[(key >> 8) & 0xff]; // ++counts2[(key >> 16) & 0xff]; // ++counts3[(key >> 24) & 0xff]; // ++counts4[(key >> 32) & 0xff]; // ++counts5[(key >> 40) & 0xff]; // ++counts6[(key >> 48) & 0xff]; // ++counts7[(key >> 56) & 0xff]; // } // count_type total0 = 0; // count_type total1 = 0; // count_type total2 = 0; // count_type total3 = 0; // count_type total4 = 0; // count_type total5 = 0; // count_type total6 = 0; // count_type total7 = 0; // for (int i = 0; i < 256; ++i) // { // count_type old_count0 = counts0[i]; // count_type old_count1 = counts1[i]; // count_type old_count2 = counts2[i]; // count_type old_count3 = counts3[i]; // count_type old_count4 = counts4[i]; // count_type old_count5 = counts5[i]; // count_type old_count6 = counts6[i]; // count_type old_count7 = counts7[i]; // counts0[i] = total0; // counts1[i] = total1; // counts2[i] = total2; // counts3[i] = total3; // counts4[i] = total4; // counts5[i] = total5; // counts6[i] = total6; // counts7[i] = total7; // total0 += old_count0; // total1 += old_count1; // total2 += old_count2; // total3 += old_count3; // total4 += old_count4; // total5 += old_count5; // total6 += old_count6; // total7 += old_count7; // } // for (It it = begin; it != end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)); // out_begin[counts0[key]++] = std::move(*it); // } // for (OutIt it = out_begin; it != out_end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)) >> 8; // begin[counts1[key]++] = std::move(*it); // } // for (It it = begin; it != end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)) >> 16; // out_begin[counts2[key]++] = std::move(*it); // } // for (OutIt it = out_begin; it != out_end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)) >> 24; // begin[counts3[key]++] = std::move(*it); // } // for (It it = begin; it != end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)) >> 32; // out_begin[counts4[key]++] = std::move(*it); // } // for (OutIt it = out_begin; it != out_end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)) >> 40; // begin[counts5[key]++] = std::move(*it); // } // for (It it = begin; it != end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)) >> 48; // out_begin[counts6[key]++] = std::move(*it); // } // for (OutIt it = out_begin; it != out_end; ++it) // { // std::uint8_t key = to_unsigned_or_bool(extract_key(*it)) >> 56; // begin[counts7[key]++] = std::move(*it); // } // return false; // } // // static constexpr size_t pass_count = 9; // }; // // template // struct RadixSorter; // template<> // struct RadixSorter // { // template // static bool sort(It begin, It end, OutIt buffer_begin, ExtractKey && extract_key) // { // size_t false_count = 0; // for (It it = begin; it != end; ++it) // { // if (!extract_key(*it)) // ++false_count; // } // size_t true_position = false_count; // false_count = 0; // for (; begin != end; ++begin) // { // if (extract_key(*begin)) // buffer_begin[true_position++] = std::move(*begin); // else // buffer_begin[false_count++] = std::move(*begin); // } // return true; // } // // static constexpr size_t pass_count = 2; // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template<> // struct RadixSorter : SizedRadixSorter // { // }; // template // struct RadixSorter> // { // template // static bool sort(It begin, It end, OutIt buffer_begin, ExtractKey && extract_key) // { // bool first_result = RadixSorter::sort(begin, end, buffer_begin, [&](typename std::remove_reference::type & o) // { // return extract_key(o).second; // }); // auto extract_first = [&](typename std::remove_reference::type & o) // { // return extract_key(o).first; // }; // // if (first_result) // { // return !RadixSorter::sort(buffer_begin, buffer_begin + (end - begin), begin, extract_first); // } // else // { // return RadixSorter::sort(begin, end, buffer_begin, extract_first); // } // } // // static constexpr size_t pass_count = RadixSorter::pass_count + RadixSorter::pass_count; // }; // template // struct RadixSorter &> // { // template // static bool sort(It begin, It end, OutIt buffer_begin, ExtractKey && extract_key) // { // bool first_result = RadixSorter::sort(begin, end, buffer_begin, [&](typename std::remove_reference::type & o) -> const V & // { // return extract_key(o).second; // }); // auto extract_first = [&](typename std::remove_reference::type & o) -> const K & // { // return extract_key(o).first; // }; // // if (first_result) // { // return !RadixSorter::sort(buffer_begin, buffer_begin + (end - begin), begin, extract_first); // } // else // { // return RadixSorter::sort(begin, end, buffer_begin, extract_first); // } // } // // static constexpr size_t pass_count = RadixSorter::pass_count + RadixSorter::pass_count; // }; // template // struct TupleRadixSorter // { // using NextSorter = TupleRadixSorter; // using ThisSorter = RadixSorter::type>; // // template // static bool sort(It begin, It end, OutIt out_begin, OutIt out_end, ExtractKey && extract_key) // { // bool which = NextSorter::sort(begin, end, out_begin, out_end, extract_key); // auto extract_i = [&](typename std::remove_reference::type & o) // { // return std::get(extract_key(o)); // }; // if (which) // return !ThisSorter::sort(out_begin, out_end, begin, extract_i); // else // return ThisSorter::sort(begin, end, out_begin, extract_i); // } // // static constexpr size_t pass_count = ThisSorter::pass_count + NextSorter::pass_count; // }; // template // struct TupleRadixSorter // { // using NextSorter = TupleRadixSorter; // using ThisSorter = RadixSorter::type>; // // template // static bool sort(It begin, It end, OutIt out_begin, OutIt out_end, ExtractKey && extract_key) // { // bool which = NextSorter::sort(begin, end, out_begin, out_end, extract_key); // auto extract_i = [&](typename std::remove_reference::type & o) -> typename std::tuple_element::type const & // { // return std::get(extract_key(o)); // }; // if (which) // return !ThisSorter::sort(out_begin, out_end, begin, extract_i); // else // return ThisSorter::sort(begin, end, out_begin, extract_i); // } // // static constexpr size_t pass_count = ThisSorter::pass_count + NextSorter::pass_count; // }; // template // struct TupleRadixSorter // { // template // static bool sort(It, It, OutIt, OutIt, ExtractKey &&) // { // return false; // } // // static constexpr size_t pass_count = 0; // }; // template // struct TupleRadixSorter // { // template // static bool sort(It, It, OutIt, OutIt, ExtractKey &&) // { // return false; // } // // static constexpr size_t pass_count = 0; // }; // // template // struct RadixSorter> // { // using SorterImpl = TupleRadixSorter<0, sizeof...(Args), std::tuple>; // // template // static bool sort(It begin, It end, OutIt buffer_begin, ExtractKey && extract_key) // { // return SorterImpl::sort(begin, end, buffer_begin, buffer_begin + (end - begin), extract_key); // } // // static constexpr size_t pass_count = SorterImpl::pass_count; // }; // // template // struct RadixSorter &> // { // using SorterImpl = TupleRadixSorter<0, sizeof...(Args), const std::tuple &>; // // template // static bool sort(It begin, It end, OutIt buffer_begin, ExtractKey && extract_key) // { // return SorterImpl::sort(begin, end, buffer_begin, buffer_begin + (end - begin), extract_key); // } // // static constexpr size_t pass_count = SorterImpl::pass_count; // }; // // template // struct RadixSorter> // { // template // static bool sort(It begin, It end, OutIt buffer_begin, ExtractKey && extract_key) // { // auto buffer_end = buffer_begin + (end - begin); // bool which = false; // for (size_t i = S; i > 0; --i) // { // auto i_copy = i - 1; // auto extract_i = [&, i_copy](typename std::remove_reference::type & o) // { // return extract_key(o)[i_copy]; // }; // if (which) // which = !RadixSorter::sort(buffer_begin, buffer_end, begin, extract_i); // else // which = RadixSorter::sort(begin, end, buffer_begin, extract_i); // } // return which; // } // // static constexpr size_t pass_count = RadixSorter::pass_count * S; // }; // // template // struct RadixSorter : RadixSorter // { // }; // template // struct RadixSorter : RadixSorter // { // }; // template // struct RadixSorter : RadixSorter // { // }; // template // struct RadixSorter : RadixSorter // { // }; // template // struct RadixSorter : RadixSorter // { // }; // // struct ExampleStructA { int i; }; // struct ExampleStructB { float f; }; // inline int to_radix_sort_key(ExampleStructA a) { return a.i; } // inline float to_radix_sort_key(ExampleStructB b) { return b.f; } // // template // struct FallbackRadixSorter : RadixSorter()))> // { // using base = RadixSorter()))>; // // template // static bool sort(It begin, It end, OutIt buffer_begin, ExtractKey && extract_key) // { // return base::sort(begin, end, buffer_begin, [&](typename std::remove_reference::type & a) // { // return to_radix_sort_key(extract_key(a)); // }); // } // }; template struct has_subscript_operator_impl { template static auto test(int) -> decltype(std::declval()[0], std::true_type()); template static std::false_type test(...); typedef decltype(test(0)) type; }; template struct has_subscript_operator : has_subscript_operator_impl::type { }; // template // struct FallbackRadixSorter::value>::type> : RadixSorter()[0])>::type> // { // }; // // template // struct RadixSorter : FallbackRadixSorter // { // }; // // template // struct RadixSortPassCount // { // static const size_t value = RadixSorter::pass_count; // }; template inline void unroll_loop_four_times(It begin, size_t iteration_count, Func && to_call) { size_t loop_count = iteration_count / 4; size_t remainder_count = iteration_count - loop_count * 4; for (; loop_count > 0; --loop_count) { to_call(begin); ++begin; to_call(begin); ++begin; to_call(begin); ++begin; to_call(begin); ++begin; } switch(remainder_count) { case 3: to_call(begin); ++begin; DUCKDB_EXPLICIT_FALLTHROUGH; case 2: to_call(begin); ++begin; DUCKDB_EXPLICIT_FALLTHROUGH; case 1: to_call(begin); } } template inline It custom_std_partition(It begin, It end, F && func) { for (;; ++begin) { if (begin == end) return end; if (!func(*begin)) break; } It it = begin; for(++it; it != end; ++it) { if (!func(*it)) continue; std::iter_swap(begin, it); ++begin; } return begin; } struct PartitionInfo { PartitionInfo() : count(0) { } union { size_t count; size_t offset; }; size_t next_offset; }; template struct UnsignedForSize; template<> struct UnsignedForSize<1> { typedef uint8_t type; }; template<> struct UnsignedForSize<2> { typedef uint16_t type; }; template<> struct UnsignedForSize<4> { typedef uint32_t type; }; template<> struct UnsignedForSize<8> { typedef uint64_t type; }; template struct SubKey; template struct SizedSubKey { template static typename UnsignedForSize::type sub_key(T && value, void *) { return to_unsigned_or_bool(value); } typedef SubKey next; using sub_key_type = typename UnsignedForSize::type; }; template struct SubKey : SubKey { }; template struct SubKey : SubKey { }; template struct SubKey : SubKey { }; template struct SubKey : SubKey { }; template struct SubKey : SubKey { }; // First, ensure this void_t helper is near the top of the file: template struct void_type { typedef void type; }; template using void_t = typename void_type::type; // Primary template declaration template struct FallbackSubKey; // Specialization 1: For types with to_radix_sort_key template struct FallbackSubKey()))>> : SubKey()))> { using base = SubKey()))>; template static typename base::sub_key_type sub_key(U && value, void * data) { return base::sub_key(to_radix_sort_key(value), data); } }; // Specialization 2: For types that can be converted to unsigned/bool template struct FallbackSubKey::value && // Only if no subscript operator std::is_same< void_t()))>, void >::value >::type> : SubKey()))> { }; // Specialization 3: For types with subscript operator (replaces both previous definitions) template struct FallbackSubKey::value>::type> : SubKey()[0])>::type> { }; // The existing SubKey definition should remain unchanged: template struct SubKey : FallbackSubKey { }; template<> struct SubKey { template static bool sub_key(T && value, void *) { return value; } typedef SubKey next; using sub_key_type = bool; }; template<> struct SubKey; template<> struct SubKey : SizedSubKey { }; template<> struct SubKey : SizedSubKey { }; template<> struct SubKey : SizedSubKey { }; template<> struct SubKey : SizedSubKey { }; template<> struct SubKey : SizedSubKey { }; template struct SubKey : SizedSubKey { }; template struct PairSecondSubKey : Current { static typename Current::sub_key_type sub_key(const std::pair & value, void * sort_data) { return Current::sub_key(value.second, sort_data); } typedef typename std::conditional, typename Current::next>::value, SubKey, PairSecondSubKey>::type next; }; template struct PairFirstSubKey : Current { static typename Current::sub_key_type sub_key(const std::pair & value, void * sort_data) { return Current::sub_key(value.first, sort_data); } typedef typename std::conditional, typename Current::next>::value, PairSecondSubKey>, PairFirstSubKey>::type next; }; template struct SubKey> : PairFirstSubKey> { }; template struct TypeAt : TypeAt { }; template struct TypeAt<0, First, More...> { typedef First type; }; // template // struct TupleSubKey; // // template // struct NextTupleSubKey // { // typedef TupleSubKey type; // }; // template // struct NextTupleSubKey, First, Second, More...> // { // typedef TupleSubKey, Second, More...> type; // }; // template // struct NextTupleSubKey, First> // { // typedef SubKey type; // }; // // template // struct TupleSubKey : Current // { // template // static typename Current::sub_key_type sub_key(const Tuple & value, void * sort_data) // { // return Current::sub_key(std::get(value), sort_data); // } // // typedef typename NextTupleSubKey::type next; // }; // template // struct TupleSubKey : Current // { // template // static typename Current::sub_key_type sub_key(const Tuple & value, void * sort_data) // { // return Current::sub_key(std::get(value), sort_data); // } // // typedef typename NextTupleSubKey::type next; // }; // template // struct SubKey> : TupleSubKey<0, SubKey, First, More...> // { // }; // // struct BaseListSortData // { // size_t current_index; // size_t recursion_limit; // void * next_sort_data; // }; // template // struct ListSortData : BaseListSortData // { // void (*next_sort)(It, It, size_t, ExtractKey &, void *); // }; // // template // struct ListElementSubKey : SubKey()[0])>::type> // { // using base = SubKey()[0])>::type>; // // typedef ListElementSubKey next; // // template // static typename base::sub_key_type sub_key(U && value, void * sort_data) // { // BaseListSortData * list_sort_data = static_cast(sort_data); // const T & list = CurrentSubKey::sub_key(value, list_sort_data->next_sort_data); // return base::sub_key(list[list_sort_data->current_index], list_sort_data->next_sort_data); // } // }; // // template // struct ListSubKey // { // typedef SubKey next; // // typedef T sub_key_type; // // static const T & sub_key(const T & value, void *) // { // return value; // } // }; // // template // struct FallbackSubKey::value>::type> : ListSubKey // { // }; template inline void StdSortFallback(It begin, It end, ExtractKey & extract_key) { // LNK note that we use the full comparison (not just extracted key) here static const auto comp = [&](const typename std::remove_reference::type & l, const typename std::remove_reference::type & r){ return l < r; }; static const auto fallback = [&](const It &fb_begin, const It &fb_end) { duckdb_pdqsort::pdqsort_branchless(fb_begin, fb_end, comp); }; duckdb_vergesort::vergesort(begin, end, comp, fallback); } template inline bool StdSortIfLessThanThreshold(It begin, It end, size_t num_elements, ExtractKey & extract_key) { if (num_elements <= 1) return true; if (num_elements >= StdSortThreshold) return false; StdSortFallback(begin, end, extract_key); return true; } template struct InplaceSorter; template struct UnsignedInplaceSorter { static constexpr size_t ShiftAmount = (((NumBytes - 1) - Offset) * 8); template inline static uint8_t current_byte(T && elem, void * sort_data) { return static_cast(CurrentSubKey::sub_key(elem, sort_data) >> ShiftAmount); } template static void sort(It begin, It end, size_t num_elements, ExtractKey & extract_key, void (*next_sort)(It, It, size_t, ExtractKey &, void *), void * sort_data) { if (extract_key.Interrupted()) return; else if (extract_key.ByteIsSkippable(Offset)) UnsignedInplaceSorter::sort(begin, end, num_elements, extract_key, next_sort, sort_data); else if (num_elements < AmericanFlagSortThreshold) american_flag_sort(begin, end, extract_key, next_sort, sort_data); else ska_byte_sort(begin, end, extract_key, next_sort, sort_data); } template static void american_flag_sort(It begin, It end, ExtractKey & extract_key, void (*next_sort)(It, It, size_t, ExtractKey &, void *), void * sort_data) { PartitionInfo partitions[256]; for (It it = begin; it != end; ++it) { ++partitions[current_byte(extract_key(*it), sort_data)].count; } size_t total = 0; uint8_t remaining_partitions[256]; int num_partitions = 0; for (int i = 0; i < 256; ++i) { size_t count = partitions[i].count; if (!count) continue; partitions[i].offset = total; total += count; partitions[i].next_offset = total; remaining_partitions[num_partitions] = static_cast(i); ++num_partitions; } if (num_partitions > 1) { uint8_t * current_block_ptr = remaining_partitions; PartitionInfo * current_block = partitions + *current_block_ptr; uint8_t * last_block = remaining_partitions + num_partitions - 1; It it = begin; It block_end = begin + current_block->next_offset; It last_element = end - 1; for (;;) { PartitionInfo * block = partitions + current_byte(extract_key(*it), sort_data); if (block == current_block) { ++it; if (it == last_element) break; else if (it == block_end) { for (;;) { ++current_block_ptr; if (current_block_ptr == last_block) goto recurse; current_block = partitions + *current_block_ptr; if (current_block->offset != current_block->next_offset) break; } it = begin + current_block->offset; block_end = begin + current_block->next_offset; } } else { size_t offset = block->offset++; std::iter_swap(it, begin + offset); } } } recurse: if (Offset + 1 != extract_key.ska_sort_width || next_sort) { size_t start_offset = 0; It partition_begin = begin; for (uint8_t * it = remaining_partitions, * end_it = remaining_partitions + num_partitions; it != end_it; ++it) { size_t end_offset = partitions[*it].next_offset; It partition_end = begin + end_offset; size_t num_elements = end_offset - start_offset; if (!StdSortIfLessThanThreshold(partition_begin, partition_end, num_elements, extract_key)) { UnsignedInplaceSorter::sort(partition_begin, partition_end, num_elements, extract_key, next_sort, sort_data); } start_offset = end_offset; partition_begin = partition_end; } } } template static void ska_byte_sort(It begin, It end, ExtractKey & extract_key, void (*next_sort)(It, It, size_t, ExtractKey &, void *), void * sort_data) { PartitionInfo partitions[256]; for (It it = begin; it != end; ++it) { ++partitions[current_byte(extract_key(*it), sort_data)].count; } uint8_t remaining_partitions[256]; size_t total = 0; int num_partitions = 0; for (int i = 0; i < 256; ++i) { size_t count = partitions[i].count; if (count) { partitions[i].offset = total; total += count; remaining_partitions[num_partitions] = static_cast(i); ++num_partitions; } partitions[i].next_offset = total; } for (uint8_t * last_remaining = remaining_partitions + num_partitions, * end_partition = remaining_partitions + 1; last_remaining > end_partition;) { last_remaining = custom_std_partition(remaining_partitions, last_remaining, [&](uint8_t partition) { size_t & begin_offset = partitions[partition].offset; size_t & end_offset = partitions[partition].next_offset; if (begin_offset == end_offset) return false; auto partitions_copy = partitions; unroll_loop_four_times(begin + begin_offset, end_offset - begin_offset, [&partitions_copy, begin, &extract_key, sort_data](It it) { uint8_t this_partition = current_byte(extract_key(*it), sort_data); size_t offset = partitions_copy[this_partition].offset++; std::iter_swap(it, begin + offset); }); return begin_offset != end_offset; }); } if (Offset + 1 != extract_key.ska_sort_width || next_sort) { for (uint8_t * it = remaining_partitions + num_partitions; it != remaining_partitions; --it) { uint8_t partition = it[-1]; size_t start_offset = (partition == 0 ? 0 : partitions[partition - 1].next_offset); size_t end_offset = partitions[partition].next_offset; It partition_begin = begin + start_offset; It partition_end = begin + end_offset; size_t num_elements = end_offset - start_offset; if (!StdSortIfLessThanThreshold(partition_begin, partition_end, num_elements, extract_key)) { UnsignedInplaceSorter::sort(partition_begin, partition_end, num_elements, extract_key, next_sort, sort_data); } } } } }; template struct UnsignedInplaceSorter { template inline static void sort(It begin, It end, size_t num_elements, ExtractKey & extract_key, void (*next_sort)(It, It, size_t, ExtractKey &, void *), void * next_sort_data) { next_sort(begin, end, num_elements, extract_key, next_sort_data); } }; // template // size_t CommonPrefix(It begin, It end, size_t start_index, ExtractKey && extract_key, ElementKey && element_key) // { // const auto & largest_match_list = extract_key(*begin); // size_t largest_match = largest_match_list.size(); // if (largest_match == start_index) // return start_index; // for (++begin; begin != end; ++begin) // { // const auto & current_list = extract_key(*begin); // size_t current_size = current_list.size(); // if (current_size < largest_match) // { // largest_match = current_size; // if (largest_match == start_index) // return start_index; // } // if (element_key(largest_match_list[start_index]) != element_key(current_list[start_index])) // return start_index; // for (size_t i = start_index + 1; i < largest_match; ++i) // { // if (element_key(largest_match_list[i]) != element_key(current_list[i])) // { // largest_match = i; // break; // } // } // } // return largest_match; // } // // template // struct ListInplaceSorter // { // using ElementSubKey = ListElementSubKey; // template // static void sort(It begin, It end, ExtractKey & extract_key, ListSortData * sort_data) // { // size_t current_index = sort_data->current_index; // void * next_sort_data = sort_data->next_sort_data; // auto current_key = [&](typename std::remove_reference::type & elem) -> typename CurrentSubKey::sub_key_type // { // return CurrentSubKey::sub_key(extract_key(elem), next_sort_data); // }; // auto element_key = [&](typename std::remove_reference::type & elem) -> typename ElementSubKey::base::sub_key_type // { // return ElementSubKey::base::sub_key(elem, sort_data); // }; // sort_data->current_index = current_index = CommonPrefix(begin, end, current_index, current_key, element_key); // It end_of_shorter_ones = std::partition(begin, end, [&](typename std::remove_reference::type & elem) // { // return current_key(elem).size() <= current_index; // }); // size_t num_shorter_ones = end_of_shorter_ones - begin; // if (sort_data->next_sort && !StdSortIfLessThanThreshold(begin, end_of_shorter_ones, num_shorter_ones, extract_key)) // { // sort_data->next_sort(begin, end_of_shorter_ones, num_shorter_ones, extract_key, next_sort_data); // } // size_t num_elements = end - end_of_shorter_ones; // if (!StdSortIfLessThanThreshold(end_of_shorter_ones, end, num_elements, extract_key)) // { // void (*sort_next_element)(It, It, size_t, ExtractKey &, void *) = static_cast(&sort_from_recursion); // InplaceSorter::sort(end_of_shorter_ones, end, num_elements, extract_key, sort_next_element, sort_data); // } // } // // template // static void sort_from_recursion(It begin, It end, size_t, ExtractKey & extract_key, void * next_sort_data) // { // ListSortData offset = *static_cast *>(next_sort_data); // ++offset.current_index; // --offset.recursion_limit; // if (offset.recursion_limit == 0) // { // StdSortFallback(begin, end, extract_key); // } // else // { // sort(begin, end, extract_key, &offset); // } // } // // template // static void sort(It begin, It end, size_t, ExtractKey & extract_key, void (*next_sort)(It, It, size_t, ExtractKey &, void *), void * next_sort_data) // { // ListSortData offset; // offset.current_index = 0; // offset.recursion_limit = 16; // offset.next_sort = next_sort; // offset.next_sort_data = next_sort_data; // sort(begin, end, extract_key, &offset); // } // }; template struct InplaceSorter { template static void sort(It begin, It end, size_t, ExtractKey & extract_key, void (*next_sort)(It, It, size_t, ExtractKey &, void *), void * sort_data) { It middle = std::partition(begin, end, [&](typename std::remove_reference::type & a){ return !CurrentSubKey::sub_key(extract_key(a), sort_data); }); if (next_sort) { next_sort(begin, middle, middle - begin, extract_key, sort_data); next_sort(middle, end, end - middle, extract_key, sort_data); } } }; // template // struct InplaceSorter : UnsignedInplaceSorter // { // }; // template // struct InplaceSorter : UnsignedInplaceSorter // { // }; // template // struct InplaceSorter : UnsignedInplaceSorter // { // }; template struct InplaceSorter : UnsignedInplaceSorter { }; // template // struct FallbackInplaceSorter; // // template // struct InplaceSorter : FallbackInplaceSorter // { // }; // // template // struct FallbackInplaceSorter::value>::type> // : ListInplaceSorter // { // }; template struct SortStarter; template struct SortStarter> { template static void sort(It, It, size_t, ExtractKey &, void *) { } }; template struct SortStarter { template static void sort(It begin, It end, size_t num_elements, ExtractKey & extract_key, void * next_sort_data = nullptr) { if (StdSortIfLessThanThreshold(begin, end, num_elements, extract_key)) return; // void (*next_sort)(It, It, size_t, ExtractKey &, void *) = static_cast(&SortStarter::sort); // if (next_sort == static_cast(&SortStarter>::sort)) // next_sort = nullptr; // LNK: different templating for DuckDB void (*next_sort)(It, It, size_t, ExtractKey &, void *) = nullptr; if (extract_key.requires_next_sort) { next_sort = [](It b, It e, size_t, ExtractKey& ek, void*) { StdSortFallback(b, e, ek); }; } InplaceSorter::sort(begin, end, num_elements, extract_key, next_sort, next_sort_data); } }; template void inplace_radix_sort(It begin, It end, ExtractKey & extract_key) { typedef SubKey SubKeyType; SortStarter::sort(begin, end, end - begin, extract_key); } struct IdentityFunctor { template typename std::remove_reference::type && operator()(T && i) const { return std::forward(i); } }; } template static void ska_sort(It begin, It end, ExtractKey && extract_key) { detail::inplace_radix_sort<128, 1024>(begin, end, extract_key); } template static void ska_sort(It begin, It end) { ska_sort(begin, end, detail::IdentityFunctor()); } // template // bool ska_sort_copy(It begin, It end, OutIt buffer_begin, ExtractKey && key) // { // size_t num_elements = end - begin; // if (num_elements < 128 || detail::RadixSortPassCount::type>::value >= 8) // { // ska_sort(begin, end, key); // return false; // } // else // return detail::RadixSorter::type>::sort(begin, end, buffer_begin, key); // } // template // bool ska_sort_copy(It begin, It end, OutIt buffer_begin) // { // return ska_sort_copy(begin, end, buffer_begin, detail::IdentityFunctor()); // } } // namespace duckdb_ska_sort */