Changes in semaphore

643df8fa - [libc++] Make sure that all headers can be included with modules enabled

Tue, 10 May 2022 19:27:52 +0000

[libc++] Make sure that all headers can be included with modules enabledThis commit ensures that we can include all libc++ headers with modulesenabled. It adds a test to ensure that this doesn't regress, which isnecessary because our modules CI job does not build in all Standard modes.Differential Revision: https://reviews.llvm.org/D125331 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

1c4b31c3 - [libc++] Improve error messages for disabled modes

Wed, 18 May 2022 17:17:14 +0000

[libc++] Improve error messages for disabled modesWe should not surface CMake-level options like LIBCXX_ENABLE_FILESYSTEMto our users, since they don't know what it means. Instead, use a slightlymore general wording.Also, add an error in to improve the quality of errors for peopletrying to use when localization is disabled.Differential Revision: https://reviews.llvm.org/D125910 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

385cc25a - [libc++] Ensure that all public C++ headers include <__assert>

Fri, 25 Mar 2022 16:55:36 +0000

[libc++] Ensure that all public C++ headers include <__assert>This patch changes the requirement for getting the declaration of theassertion handler from including <__assert> to including any publicC++ header of the library. Note that C compatibility headers areexcluded because we don't implement all the C headers ourselves --some of them are taken straight from the C library, like assert.h.It also adds a generated test to check it. Furthermore, this newgenerated test is designed in a way that will make it possible toreplace almost all the existing test-generation scripts with thissystem in upcoming patches.Differential Revision: https://reviews.llvm.org/D122506 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

489637e6 - [libc++] Granularize chrono includes

Wed, 23 Feb 2022 22:05:22 +0000

[libc++] Granularize chrono includesReviewed By: Quuxplusone, #libcSpies: libcxx-commitsDifferential Revision: https://reviews.llvm.org/D120141 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

fa6b9e40 - [libc++] Normalize all our '#pragma GCC system_header', and regression-test.

Wed, 02 Feb 2022 01:16:40 +0000

[libc++] Normalize all our '#pragma GCC system_header', and regression-test.Now we'll notice if a header forgets to include this magic phrase.Differential Revision: https://reviews.llvm.org/D118800 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

df51be85 - [libc++] Split a few utilities out of __threading_support

Mon, 10 Jan 2022 14:43:29 +0000

[libc++] Split a few utilities out of __threading_supportThis change is the basis for a further refactoring where I'm going tosplit up the various implementations we have in __threading_support tomake that code easier to understand.Note that I had to make __convert_to_timespec a template to breakcircular dependencies. Concretely, we never seem to use it with anythingother than ::timespec, but I am wary of hardcoding that assumption aspart of this change, since I suspect there's a reason for going throughthese hoops in the first place.Differential Revision: https://reviews.llvm.org/D116944 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

bd6e6846 - [libc++] Add the version header to all headers.

Wed, 22 Dec 2021 17:14:14 +0000

[libc++] Add the version header to all headers.Some headers which require the version header depend on other headers toprovide it. Include the version header in all top-level headers to makesure a header cleanup can't remove the version header.Note this doesn't add the version header to the c headers.Reviewed By: #libc, Quuxplusone, ldionneDifferential Revision: https://reviews.llvm.org/D116172 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

eb8650a7 - [runtimes][NFC] Remove filenames at the top of the license notice

Wed, 17 Nov 2021 21:25:01 +0000

[runtimes][NFC] Remove filenames at the top of the license noticeWe've stopped doing it in libc++ for a while now because these nameswould end up rotting as we move things around and copy/paste stuff.This cleans up all the existing files so as to stop the spreadingas people copy-paste headers around. List of files: /llvm-project-15.0.7/libcxx/include/semaphore

c92a253c - [libc++] Fix hang in counting_semaphore::try_acquire

Thu, 04 Nov 2021 21:58:33 +0000

[libc++] Fix hang in counting_semaphore::try_acquireBefore this patch, `try_acquire` blocks instead of returning false.This is because `__libcpp_thread_poll_with_backoff` interprets zeroas meaning infinite, causing `try_acquire` to wait indefinitely.Thanks to Pablo Busse (pabusse) for the patch!Differential Revision: https://reviews.llvm.org/D98334 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

d0eaf753 - [libc++] Remove non-atomic "platform" semaphore implementations.

Mon, 20 Sep 2021 22:03:49 +0000

[libc++] Remove non-atomic "platform" semaphore implementations.These can't be made constexpr-constructible (constinit'able),so they aren't C++20-conforming. Also, the platform versions aregoing to be bigger than the atomic/futex version, so we'd havethe awkward situation that `semaphore<42>` could be bigger than`semaphore<43>`, and that's just silly.Differential Revision: https://reviews.llvm.org/D110110 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

c9af0e61 - [libc++] counting_semaphore should not be default-constructible.

Fri, 17 Sep 2021 03:14:57 +0000

[libc++] counting_semaphore should not be default-constructible.Neither the current C++2b draft, nor any revision of [p1135],nor libstdc++, claims that `counting_semaphore` should bedefault-constructible. I think this was just a copy-paste issuesomehow.Also, `explicit` was missing from the constructor.Also, `constexpr` remains missing; but that's probably more of atechnical limitation, since apparently there are some platformswhere we don't (can't??) use the atomic implementation andhave to rely on pthreads, which obviously isn't constexpr.Differential Revision: https://reviews.llvm.org/D110042 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

2e4755ff - [libc++] Fix a few warnings in system headers with GCC

Tue, 27 Jul 2021 21:30:47 +0000

[libc++] Fix a few warnings in system headers with GCCThis isn't fixing all of them, but at least it's making some progress.Differential Revision: https://reviews.llvm.org/D106283 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

bfbd73f8 - [libc++] Alphabetize and include-what-you-use. NFCI.

Wed, 19 May 2021 15:57:04 +0000

[libc++] Alphabetize and include-what-you-use. NFCI.Differential Revision: https://reviews.llvm.org/D102781 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

b6f19174 - [libc++] Fix some one-off typos in comments. NFCI.

Sat, 12 Dec 2020 16:57:32 +0000

[libc++] Fix some one-off typos in comments. NFCI. List of files: /llvm-project-15.0.7/libcxx/include/semaphore

d4303307 - [libc++] Update and normalize the "all the headers" tests.

Wed, 02 Dec 2020 23:55:01 +0000

[libc++] Update and normalize the "all the headers" tests.Some C++20 headers weren't added properly to all three of thesetest files. Add them, and take the time to normalize the formattingso that diff <(grep '#include' foo.cpp) <(grep '#include' bar.cpp)shows no diffs (except that `no_assert_include` deliberatelyexcludes ``).- Add macro guards to <{barrier,latch,semaphore}>.- Add macro guards to .- Remove an include of from .- Instead, include in the semaphore tests.Differential Revision: https://reviews.llvm.org/D92525 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

2eadbc86 - [libc++] Rework the whole availability markup implementation

Wed, 04 Nov 2020 20:01:25 +0000

[libc++] Rework the whole availability markup implementationCurrently, vendor-specific availability markup is enabled by default.This means that even when building against trunk libc++, the headerswill by default prevent you from using some features that were notreleased in the dylib on your target platform. This is a source offrustration since people building libc++ from sources are usually nottrying to use some vendor's released dylib.For that reason, I've been thinking for a long time that availabilityannotations should be off by default, which is the primary change thatthis commit enables.In addition, it reworks the implementation to make it easier for newvendors to add availability annotations for their platform, and itrefreshes the documentation to reflect the current state of the codebase.Finally, a CMake configuration option is added to control whetheravailability annotations should be turned on for the flavor of libc++being created. The intent is for vendors like Apple to turn it on, andfor the upstream libc++ to leave it off (the default).Differential Revision: https://reviews.llvm.org/D90843 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

46c38761 - [libc++] Add availability markup for the C++20 Synchronization Library on Apple

Mon, 24 Feb 2020 15:09:29 +0000

[libc++] Add availability markup for the C++20 Synchronization Library on Apple List of files: /llvm-project-15.0.7/libcxx/include/semaphore

62138846 - Some fixes for open breaks on MacOS and UBSan

Thu, 27 Feb 2020 00:49:37 +0000

Some fixes for open breaks on MacOS and UBSan List of files: /llvm-project-15.0.7/libcxx/include/semaphore

ab41129b - [libc++] Proper fix for libc++'s modulemap after D68480

Mon, 24 Feb 2020 23:12:44 +0000

[libc++] Proper fix for libc++'s modulemap after D68480Summary:In libc++, we normally #ifdef out header content instead of #erroringout when the Standard in use is insufficient for the requirements ofthe header.Reviewers: EricWFSubscribers: jkorous, dexonsmith, libcxx-commits, teemperorTags: #libcDifferential Revision: https://reviews.llvm.org/D75074 List of files: /llvm-project-15.0.7/libcxx/include/semaphore

54fa9ecd - [libc++] Implementation of C++20's P1135R6 for libcxx

Tue, 18 Feb 2020 14:58:34 +0000

[libc++] Implementation of C++20's P1135R6 for libcxxDifferential Revision: https://reviews.llvm.org/D68480 List of files: /llvm-project-15.0.7/libcxx/include/semaphore