[all-commits] [llvm/llvm-project] 6192f4: [libc++] Make `std::lock_guard` available with `_L...

[Petr Hosek via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6192f458f4fd2ca4e6f01515547034f89325e73c
      https://github.com/llvm/llvm-project/commit/6192f458f4fd2ca4e6f01515547034f89325e73c
  Author: Petr Hosek <phosek at google.com>
  Date:   2024-07-16 (Tue, 16 Jul 2024)

  Changed paths:
    M libcxx/include/__mutex/lock_guard.h
    M libcxx/include/__mutex/tag_types.h
    R libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/adopt_lock.pass.cpp
    R libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/assign.compile.fail.cpp
    A libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/assign.compile.pass.cpp
    R libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/copy.compile.fail.cpp
    A libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/copy.compile.pass.cpp
    A libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/ctor.adopt_lock.pass.cpp
    A libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/ctor.mutex.pass.cpp
    M libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/implicit_ctad.pass.cpp
    R libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/mutex.pass.cpp
    R libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/mutex.verify.cpp
    A libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/std.mutex.pass.cpp
    A libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/types.compile.pass.cpp
    A libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/types.h
    R libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/types.pass.cpp

  Log Message:
  -----------
  [libc++] Make `std::lock_guard` available with `_LIBCPP_HAS_NO_THREADS` (#98717)

This change makes `std::lock_guard` available when
`_LIBCPP_HAS_NO_THREADS` is set. This class is generic and doesn't
require threading support, and is regularly used even in environments
where threading isn't available like embedded.

fixes #89891

---------

Co-authored-by: Louis Dionne <ldionne.2 at gmail.com>



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