9783f28cbb
This patch runs clang-format on all of libcxx/include and libcxx/src, in
accordance with the RFC discussed at [1]. Follow-up patches will format
the benchmarks, the test suite and remaining parts of the code. I'm
splitting this one into its own patch so the diff is a bit easier to
review.
This patch was generated with:
find libcxx/include libcxx/src -type f \
| grep -v 'module.modulemap.in' \
| grep -v 'CMakeLists.txt' \
| grep -v 'README.txt' \
| grep -v 'libcxx.imp' \
| grep -v '__config_site.in' \
| xargs clang-format -i
A Git merge driver is available in libcxx/utils/clang-format-merge-driver.sh
to help resolve merge and rebase issues across these formatting changes.
[1]: https://discourse.llvm.org/t/rfc-clang-formatting-all-of-libc-once-and-for-all
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// Define ~mutex.
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//
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// On some platforms ~mutex has been made trivial and the definition is only
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// provided for ABI compatibility.
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//
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// In order to avoid ODR violations within libc++ itself, we need to ensure
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// that *nothing* sees the non-trivial mutex declaration. For this reason
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// we re-declare the entire class in this file instead of using
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// _LIBCPP_BUILDING_LIBRARY to change the definition in the headers.
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#include <__config>
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#include <__threading_support>
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#if _LIBCPP_ABI_VERSION == 1 || !defined(_LIBCPP_HAS_TRIVIAL_MUTEX_DESTRUCTION)
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# define NEEDS_MUTEX_DESTRUCTOR
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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#ifdef NEEDS_MUTEX_DESTRUCTOR
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class _LIBCPP_EXPORTED_FROM_ABI mutex {
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__libcpp_mutex_t __m_ = _LIBCPP_MUTEX_INITIALIZER;
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public:
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_LIBCPP_ALWAYS_INLINE _LIBCPP_HIDE_FROM_ABI constexpr mutex() = default;
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mutex(const mutex&) = delete;
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mutex& operator=(const mutex&) = delete;
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~mutex() noexcept;
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};
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mutex::~mutex() noexcept { __libcpp_mutex_destroy(&__m_); }
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#endif // !NEEDS_MUTEX_DESTRUCTOR
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_LIBCPP_END_NAMESPACE_STD
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