mirror of
https://github.com/jart/cosmopolitan.git
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Upgrade to 2022-era LLVM LIBCXX
This commit is contained in:
Justine Tunney
parent
2f4ca71f26
commit
8e68384e15
2078 changed files with 165657 additions and 65010 deletions
116
third_party/libcxx/__atomic/aliases.h
vendored
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116
third_party/libcxx/__atomic/aliases.h
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//===----------------------------------------------------------------------===//
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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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#ifndef _LIBCPP___ATOMIC_ALIASES_H
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#define _LIBCPP___ATOMIC_ALIASES_H
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#include <__atomic/atomic.h>
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#include <__atomic/atomic_lock_free.h>
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#include <__atomic/contention_t.h>
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#include <__atomic/is_always_lock_free.h>
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#include <__config>
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#include <__type_traits/conditional.h>
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#include <cstddef>
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#include <cstdint>
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#include <cstdlib>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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using atomic_bool = atomic<bool>;
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using atomic_char = atomic<char>;
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using atomic_schar = atomic<signed char>;
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using atomic_uchar = atomic<unsigned char>;
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using atomic_short = atomic<short>;
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using atomic_ushort = atomic<unsigned short>;
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using atomic_int = atomic<int>;
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using atomic_uint = atomic<unsigned int>;
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using atomic_long = atomic<long>;
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using atomic_ulong = atomic<unsigned long>;
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using atomic_llong = atomic<long long>;
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using atomic_ullong = atomic<unsigned long long>;
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#ifndef _LIBCPP_HAS_NO_CHAR8_T
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using atomic_char8_t = atomic<char8_t>;
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#endif
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using atomic_char16_t = atomic<char16_t>;
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using atomic_char32_t = atomic<char32_t>;
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#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
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using atomic_wchar_t = atomic<wchar_t>;
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#endif
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using atomic_int_least8_t = atomic<int_least8_t>;
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using atomic_uint_least8_t = atomic<uint_least8_t>;
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using atomic_int_least16_t = atomic<int_least16_t>;
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using atomic_uint_least16_t = atomic<uint_least16_t>;
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using atomic_int_least32_t = atomic<int_least32_t>;
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using atomic_uint_least32_t = atomic<uint_least32_t>;
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using atomic_int_least64_t = atomic<int_least64_t>;
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using atomic_uint_least64_t = atomic<uint_least64_t>;
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using atomic_int_fast8_t = atomic<int_fast8_t>;
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using atomic_uint_fast8_t = atomic<uint_fast8_t>;
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using atomic_int_fast16_t = atomic<int_fast16_t>;
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using atomic_uint_fast16_t = atomic<uint_fast16_t>;
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using atomic_int_fast32_t = atomic<int_fast32_t>;
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using atomic_uint_fast32_t = atomic<uint_fast32_t>;
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using atomic_int_fast64_t = atomic<int_fast64_t>;
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using atomic_uint_fast64_t = atomic<uint_fast64_t>;
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using atomic_int8_t = atomic< int8_t>;
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using atomic_uint8_t = atomic<uint8_t>;
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using atomic_int16_t = atomic< int16_t>;
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using atomic_uint16_t = atomic<uint16_t>;
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using atomic_int32_t = atomic< int32_t>;
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using atomic_uint32_t = atomic<uint32_t>;
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using atomic_int64_t = atomic< int64_t>;
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using atomic_uint64_t = atomic<uint64_t>;
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using atomic_intptr_t = atomic<intptr_t>;
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using atomic_uintptr_t = atomic<uintptr_t>;
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using atomic_size_t = atomic<size_t>;
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using atomic_ptrdiff_t = atomic<ptrdiff_t>;
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using atomic_intmax_t = atomic<intmax_t>;
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using atomic_uintmax_t = atomic<uintmax_t>;
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// atomic_*_lock_free : prefer the contention type most highly, then the largest lock-free type
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#if _LIBCPP_STD_VER >= 17
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# define _LIBCPP_CONTENTION_LOCK_FREE ::std::__libcpp_is_always_lock_free<__cxx_contention_t>::__value
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#else
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# define _LIBCPP_CONTENTION_LOCK_FREE false
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#endif
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#if ATOMIC_LLONG_LOCK_FREE == 2
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using __libcpp_signed_lock_free = __conditional_t<_LIBCPP_CONTENTION_LOCK_FREE, __cxx_contention_t, long long>;
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using __libcpp_unsigned_lock_free =
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__conditional_t<_LIBCPP_CONTENTION_LOCK_FREE, __cxx_contention_t, unsigned long long>;
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#elif ATOMIC_INT_LOCK_FREE == 2
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using __libcpp_signed_lock_free = __conditional_t<_LIBCPP_CONTENTION_LOCK_FREE, __cxx_contention_t, int>;
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using __libcpp_unsigned_lock_free = __conditional_t<_LIBCPP_CONTENTION_LOCK_FREE, __cxx_contention_t, unsigned int>;
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#elif ATOMIC_SHORT_LOCK_FREE == 2
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using __libcpp_signed_lock_free = __conditional_t<_LIBCPP_CONTENTION_LOCK_FREE, __cxx_contention_t, short>;
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using __libcpp_unsigned_lock_free = __conditional_t<_LIBCPP_CONTENTION_LOCK_FREE, __cxx_contention_t, unsigned short>;
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#elif ATOMIC_CHAR_LOCK_FREE == 2
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using __libcpp_signed_lock_free = __conditional_t<_LIBCPP_CONTENTION_LOCK_FREE, __cxx_contention_t, char>;
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using __libcpp_unsigned_lock_free = __conditional_t<_LIBCPP_CONTENTION_LOCK_FREE, __cxx_contention_t, unsigned char>;
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#else
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// No signed/unsigned lock-free types
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# define _LIBCPP_NO_LOCK_FREE_TYPES
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#endif
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#if !defined(_LIBCPP_NO_LOCK_FREE_TYPES)
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using atomic_signed_lock_free = atomic<__libcpp_signed_lock_free>;
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using atomic_unsigned_lock_free = atomic<__libcpp_unsigned_lock_free>;
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#endif
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ATOMIC_ALIASES_H
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664
third_party/libcxx/__atomic/atomic.h
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664
third_party/libcxx/__atomic/atomic.h
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//===----------------------------------------------------------------------===//
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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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#ifndef _LIBCPP___ATOMIC_ATOMIC_H
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#define _LIBCPP___ATOMIC_ATOMIC_H
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#include <__atomic/atomic_base.h>
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#include <__atomic/check_memory_order.h>
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#include <__atomic/cxx_atomic_impl.h>
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#include <__atomic/memory_order.h>
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#include <__config>
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#include <__memory/addressof.h>
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#include <__type_traits/is_function.h>
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#include <__type_traits/is_same.h>
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#include <__type_traits/remove_pointer.h>
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#include <cstddef>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _Tp>
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struct atomic
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: public __atomic_base<_Tp>
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{
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using __base = __atomic_base<_Tp>;
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using value_type = _Tp;
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using difference_type = value_type;
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#if _LIBCPP_STD_VER >= 20
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_LIBCPP_HIDE_FROM_ABI
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atomic() = default;
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#else
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_LIBCPP_HIDE_FROM_ABI
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atomic() _NOEXCEPT = default;
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#endif
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_LIBCPP_HIDE_FROM_ABI
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_LIBCPP_CONSTEXPR atomic(_Tp __d) _NOEXCEPT : __base(__d) {}
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_LIBCPP_HIDE_FROM_ABI
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_Tp operator=(_Tp __d) volatile _NOEXCEPT
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{__base::store(__d); return __d;}
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_LIBCPP_HIDE_FROM_ABI
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_Tp operator=(_Tp __d) _NOEXCEPT
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{__base::store(__d); return __d;}
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atomic& operator=(const atomic&) = delete;
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atomic& operator=(const atomic&) volatile = delete;
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};
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// atomic<T*>
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template <class _Tp>
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struct atomic<_Tp*>
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: public __atomic_base<_Tp*>
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{
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using __base = __atomic_base<_Tp*>;
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using value_type = _Tp*;
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using difference_type = ptrdiff_t;
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_LIBCPP_HIDE_FROM_ABI
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atomic() _NOEXCEPT = default;
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_LIBCPP_HIDE_FROM_ABI
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_LIBCPP_CONSTEXPR atomic(_Tp* __d) _NOEXCEPT : __base(__d) {}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator=(_Tp* __d) volatile _NOEXCEPT
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{__base::store(__d); return __d;}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator=(_Tp* __d) _NOEXCEPT
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{__base::store(__d); return __d;}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
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// __atomic_fetch_add accepts function pointers, guard against them.
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static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed");
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return std::__cxx_atomic_fetch_add(std::addressof(this->__a_), __op, __m);
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}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
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// __atomic_fetch_add accepts function pointers, guard against them.
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static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed");
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return std::__cxx_atomic_fetch_add(std::addressof(this->__a_), __op, __m);
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}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
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// __atomic_fetch_add accepts function pointers, guard against them.
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static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed");
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return std::__cxx_atomic_fetch_sub(std::addressof(this->__a_), __op, __m);
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}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
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// __atomic_fetch_add accepts function pointers, guard against them.
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static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed");
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return std::__cxx_atomic_fetch_sub(std::addressof(this->__a_), __op, __m);
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}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator++(int) volatile _NOEXCEPT {return fetch_add(1);}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator++(int) _NOEXCEPT {return fetch_add(1);}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator--(int) volatile _NOEXCEPT {return fetch_sub(1);}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator--(int) _NOEXCEPT {return fetch_sub(1);}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator++() volatile _NOEXCEPT {return fetch_add(1) + 1;}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator++() _NOEXCEPT {return fetch_add(1) + 1;}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator--() volatile _NOEXCEPT {return fetch_sub(1) - 1;}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator--() _NOEXCEPT {return fetch_sub(1) - 1;}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator+=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator+=(ptrdiff_t __op) _NOEXCEPT {return fetch_add(__op) + __op;}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator-=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;}
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_LIBCPP_HIDE_FROM_ABI
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_Tp* operator-=(ptrdiff_t __op) _NOEXCEPT {return fetch_sub(__op) - __op;}
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atomic& operator=(const atomic&) = delete;
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atomic& operator=(const atomic&) volatile = delete;
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};
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// atomic_is_lock_free
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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bool
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atomic_is_lock_free(const volatile atomic<_Tp>* __o) _NOEXCEPT
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{
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return __o->is_lock_free();
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}
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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bool
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atomic_is_lock_free(const atomic<_Tp>* __o) _NOEXCEPT
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{
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return __o->is_lock_free();
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}
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// atomic_init
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template <class _Tp>
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_LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_HIDE_FROM_ABI
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void
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atomic_init(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
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{
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std::__cxx_atomic_init(std::addressof(__o->__a_), __d);
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}
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template <class _Tp>
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_LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_HIDE_FROM_ABI
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void
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atomic_init(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
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{
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std::__cxx_atomic_init(std::addressof(__o->__a_), __d);
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}
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// atomic_store
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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void
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atomic_store(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
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{
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__o->store(__d);
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}
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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void
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atomic_store(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
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{
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__o->store(__d);
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}
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// atomic_store_explicit
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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void
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atomic_store_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT
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_LIBCPP_CHECK_STORE_MEMORY_ORDER(__m)
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{
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__o->store(__d, __m);
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}
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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void
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atomic_store_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT
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_LIBCPP_CHECK_STORE_MEMORY_ORDER(__m)
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{
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__o->store(__d, __m);
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}
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// atomic_load
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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_Tp
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atomic_load(const volatile atomic<_Tp>* __o) _NOEXCEPT
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{
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return __o->load();
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}
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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_Tp
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atomic_load(const atomic<_Tp>* __o) _NOEXCEPT
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{
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return __o->load();
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}
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// atomic_load_explicit
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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_Tp
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atomic_load_explicit(const volatile atomic<_Tp>* __o, memory_order __m) _NOEXCEPT
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_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m)
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{
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return __o->load(__m);
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}
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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_Tp
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atomic_load_explicit(const atomic<_Tp>* __o, memory_order __m) _NOEXCEPT
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_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m)
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{
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return __o->load(__m);
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}
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// atomic_exchange
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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_Tp
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atomic_exchange(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
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{
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return __o->exchange(__d);
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}
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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_Tp
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atomic_exchange(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
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{
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return __o->exchange(__d);
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}
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// atomic_exchange_explicit
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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_Tp
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atomic_exchange_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT
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{
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return __o->exchange(__d, __m);
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}
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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_Tp
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atomic_exchange_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT
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{
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return __o->exchange(__d, __m);
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}
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// atomic_compare_exchange_weak
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI
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bool
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atomic_compare_exchange_weak(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d) _NOEXCEPT
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{
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return __o->compare_exchange_weak(*__e, __d);
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}
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template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_compare_exchange_weak(atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d) _NOEXCEPT
|
||||
{
|
||||
return __o->compare_exchange_weak(*__e, __d);
|
||||
}
|
||||
|
||||
// atomic_compare_exchange_strong
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_compare_exchange_strong(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d) _NOEXCEPT
|
||||
{
|
||||
return __o->compare_exchange_strong(*__e, __d);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_compare_exchange_strong(atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d) _NOEXCEPT
|
||||
{
|
||||
return __o->compare_exchange_strong(*__e, __d);
|
||||
}
|
||||
|
||||
// atomic_compare_exchange_weak_explicit
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_compare_exchange_weak_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e,
|
||||
typename atomic<_Tp>::value_type __d,
|
||||
memory_order __s, memory_order __f) _NOEXCEPT
|
||||
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
|
||||
{
|
||||
return __o->compare_exchange_weak(*__e, __d, __s, __f);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_compare_exchange_weak_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d,
|
||||
memory_order __s, memory_order __f) _NOEXCEPT
|
||||
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
|
||||
{
|
||||
return __o->compare_exchange_weak(*__e, __d, __s, __f);
|
||||
}
|
||||
|
||||
// atomic_compare_exchange_strong_explicit
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_compare_exchange_strong_explicit(volatile atomic<_Tp>* __o,
|
||||
typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d,
|
||||
memory_order __s, memory_order __f) _NOEXCEPT
|
||||
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
|
||||
{
|
||||
return __o->compare_exchange_strong(*__e, __d, __s, __f);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_compare_exchange_strong_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e,
|
||||
typename atomic<_Tp>::value_type __d,
|
||||
memory_order __s, memory_order __f) _NOEXCEPT
|
||||
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
|
||||
{
|
||||
return __o->compare_exchange_strong(*__e, __d, __s, __f);
|
||||
}
|
||||
|
||||
// atomic_wait
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void atomic_wait(const volatile atomic<_Tp>* __o,
|
||||
typename atomic<_Tp>::value_type __v) _NOEXCEPT
|
||||
{
|
||||
return __o->wait(__v);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void atomic_wait(const atomic<_Tp>* __o,
|
||||
typename atomic<_Tp>::value_type __v) _NOEXCEPT
|
||||
{
|
||||
return __o->wait(__v);
|
||||
}
|
||||
|
||||
// atomic_wait_explicit
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void atomic_wait_explicit(const volatile atomic<_Tp>* __o,
|
||||
typename atomic<_Tp>::value_type __v,
|
||||
memory_order __m) _NOEXCEPT
|
||||
_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m)
|
||||
{
|
||||
return __o->wait(__v, __m);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void atomic_wait_explicit(const atomic<_Tp>* __o,
|
||||
typename atomic<_Tp>::value_type __v,
|
||||
memory_order __m) _NOEXCEPT
|
||||
_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m)
|
||||
{
|
||||
return __o->wait(__v, __m);
|
||||
}
|
||||
|
||||
// atomic_notify_one
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void atomic_notify_one(volatile atomic<_Tp>* __o) _NOEXCEPT
|
||||
{
|
||||
__o->notify_one();
|
||||
}
|
||||
template <class _Tp>
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void atomic_notify_one(atomic<_Tp>* __o) _NOEXCEPT
|
||||
{
|
||||
__o->notify_one();
|
||||
}
|
||||
|
||||
// atomic_notify_all
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void atomic_notify_all(volatile atomic<_Tp>* __o) _NOEXCEPT
|
||||
{
|
||||
__o->notify_all();
|
||||
}
|
||||
template <class _Tp>
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void atomic_notify_all(atomic<_Tp>* __o) _NOEXCEPT
|
||||
{
|
||||
__o->notify_all();
|
||||
}
|
||||
|
||||
// atomic_fetch_add
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp
|
||||
atomic_fetch_add(volatile atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_add(__op);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp
|
||||
atomic_fetch_add(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_add(__op);
|
||||
}
|
||||
|
||||
// atomic_fetch_add_explicit
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp atomic_fetch_add_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_add(__op, __m);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp atomic_fetch_add_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_add(__op, __m);
|
||||
}
|
||||
|
||||
// atomic_fetch_sub
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp atomic_fetch_sub(volatile atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_sub(__op);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp atomic_fetch_sub(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_sub(__op);
|
||||
}
|
||||
|
||||
// atomic_fetch_sub_explicit
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp atomic_fetch_sub_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_sub(__op, __m);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp atomic_fetch_sub_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_sub(__op, __m);
|
||||
}
|
||||
|
||||
// atomic_fetch_and
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_and(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_and(__op);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_and(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_and(__op);
|
||||
}
|
||||
|
||||
// atomic_fetch_and_explicit
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_and_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_and(__op, __m);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_and_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_and(__op, __m);
|
||||
}
|
||||
|
||||
// atomic_fetch_or
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_or(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_or(__op);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_or(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_or(__op);
|
||||
}
|
||||
|
||||
// atomic_fetch_or_explicit
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_or_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_or(__op, __m);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_or_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_or(__op, __m);
|
||||
}
|
||||
|
||||
// atomic_fetch_xor
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_xor(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_xor(__op);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_xor(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_xor(__op);
|
||||
}
|
||||
|
||||
// atomic_fetch_xor_explicit
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_xor_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_xor(__op, __m);
|
||||
}
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if
|
||||
<
|
||||
is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
|
||||
_Tp
|
||||
>::type
|
||||
atomic_fetch_xor_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->fetch_xor(__op, __m);
|
||||
}
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_ATOMIC_H
|
||||
232
third_party/libcxx/__atomic/atomic_base.h
vendored
Normal file
232
third_party/libcxx/__atomic/atomic_base.h
vendored
Normal file
|
|
@ -0,0 +1,232 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_ATOMIC_BASE_H
|
||||
#define _LIBCPP___ATOMIC_ATOMIC_BASE_H
|
||||
|
||||
#include <__atomic/atomic_sync.h>
|
||||
#include <__atomic/check_memory_order.h>
|
||||
#include <__atomic/cxx_atomic_impl.h>
|
||||
#include <__atomic/is_always_lock_free.h>
|
||||
#include <__atomic/memory_order.h>
|
||||
#include <__availability>
|
||||
#include <__config>
|
||||
#include <__memory/addressof.h>
|
||||
#include <__type_traits/is_integral.h>
|
||||
#include <__type_traits/is_nothrow_default_constructible.h>
|
||||
#include <__type_traits/is_same.h>
|
||||
#include <version>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
_LIBCPP_BEGIN_NAMESPACE_STD
|
||||
|
||||
template <class _Tp, bool = is_integral<_Tp>::value && !is_same<_Tp, bool>::value>
|
||||
struct __atomic_base // false
|
||||
{
|
||||
mutable __cxx_atomic_impl<_Tp> __a_;
|
||||
|
||||
#if _LIBCPP_STD_VER >= 17
|
||||
static _LIBCPP_CONSTEXPR bool is_always_lock_free = __libcpp_is_always_lock_free<__cxx_atomic_impl<_Tp> >::__value;
|
||||
#endif
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool is_lock_free() const volatile _NOEXCEPT
|
||||
{return __cxx_atomic_is_lock_free(sizeof(_Tp));}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool is_lock_free() const _NOEXCEPT
|
||||
{return static_cast<__atomic_base const volatile*>(this)->is_lock_free();}
|
||||
_LIBCPP_HIDE_FROM_ABI void store(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
|
||||
_LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) {
|
||||
std::__cxx_atomic_store(std::addressof(__a_), __d, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI void store(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT
|
||||
_LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) {
|
||||
std::__cxx_atomic_store(std::addressof(__a_), __d, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp load(memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT
|
||||
_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) {
|
||||
return std::__cxx_atomic_load(std::addressof(__a_), __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp load(memory_order __m = memory_order_seq_cst) const _NOEXCEPT
|
||||
_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) {
|
||||
return std::__cxx_atomic_load(std::addressof(__a_), __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
operator _Tp() const volatile _NOEXCEPT {return load();}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
operator _Tp() const _NOEXCEPT {return load();}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
|
||||
return std::__cxx_atomic_exchange(std::addressof(__a_), __d, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
|
||||
return std::__cxx_atomic_exchange(std::addressof(__a_), __d, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI bool
|
||||
compare_exchange_weak(_Tp& __e, _Tp __d, memory_order __s, memory_order __f) volatile _NOEXCEPT
|
||||
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) {
|
||||
return std::__cxx_atomic_compare_exchange_weak(std::addressof(__a_), std::addressof(__e), __d, __s, __f);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI bool compare_exchange_weak(_Tp& __e, _Tp __d, memory_order __s, memory_order __f) _NOEXCEPT
|
||||
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) {
|
||||
return std::__cxx_atomic_compare_exchange_weak(std::addressof(__a_), std::addressof(__e), __d, __s, __f);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI bool
|
||||
compare_exchange_strong(_Tp& __e, _Tp __d, memory_order __s, memory_order __f) volatile _NOEXCEPT
|
||||
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) {
|
||||
return std::__cxx_atomic_compare_exchange_strong(std::addressof(__a_), std::addressof(__e), __d, __s, __f);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI bool compare_exchange_strong(_Tp& __e, _Tp __d, memory_order __s, memory_order __f) _NOEXCEPT
|
||||
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) {
|
||||
return std::__cxx_atomic_compare_exchange_strong(std::addressof(__a_), std::addressof(__e), __d, __s, __f);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI bool
|
||||
compare_exchange_weak(_Tp& __e, _Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
|
||||
return std::__cxx_atomic_compare_exchange_weak(std::addressof(__a_), std::addressof(__e), __d, __m, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI bool
|
||||
compare_exchange_weak(_Tp& __e, _Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
|
||||
return std::__cxx_atomic_compare_exchange_weak(std::addressof(__a_), std::addressof(__e), __d, __m, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI bool
|
||||
compare_exchange_strong(_Tp& __e, _Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
|
||||
return std::__cxx_atomic_compare_exchange_strong(std::addressof(__a_), std::addressof(__e), __d, __m, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI bool
|
||||
compare_exchange_strong(_Tp& __e, _Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
|
||||
return std::__cxx_atomic_compare_exchange_strong(std::addressof(__a_), std::addressof(__e), __d, __m, __m);
|
||||
}
|
||||
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI void wait(_Tp __v, memory_order __m = memory_order_seq_cst) const
|
||||
volatile _NOEXCEPT {
|
||||
std::__cxx_atomic_wait(std::addressof(__a_), __v, __m);
|
||||
}
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI void
|
||||
wait(_Tp __v, memory_order __m = memory_order_seq_cst) const _NOEXCEPT {
|
||||
std::__cxx_atomic_wait(std::addressof(__a_), __v, __m);
|
||||
}
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI void notify_one() volatile _NOEXCEPT {
|
||||
std::__cxx_atomic_notify_one(std::addressof(__a_));
|
||||
}
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI void notify_one() _NOEXCEPT {
|
||||
std::__cxx_atomic_notify_one(std::addressof(__a_));
|
||||
}
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI void notify_all() volatile _NOEXCEPT {
|
||||
std::__cxx_atomic_notify_all(std::addressof(__a_));
|
||||
}
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI void notify_all() _NOEXCEPT {
|
||||
std::__cxx_atomic_notify_all(std::addressof(__a_));
|
||||
}
|
||||
|
||||
#if _LIBCPP_STD_VER >= 20
|
||||
_LIBCPP_HIDE_FROM_ABI constexpr
|
||||
__atomic_base() noexcept(is_nothrow_default_constructible_v<_Tp>) : __a_(_Tp()) {}
|
||||
#else
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
__atomic_base() _NOEXCEPT = default;
|
||||
#endif
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR
|
||||
__atomic_base(_Tp __d) _NOEXCEPT : __a_(__d) {}
|
||||
|
||||
__atomic_base(const __atomic_base&) = delete;
|
||||
};
|
||||
|
||||
#if _LIBCPP_STD_VER >= 17
|
||||
template <class _Tp, bool __b>
|
||||
_LIBCPP_CONSTEXPR bool __atomic_base<_Tp, __b>::is_always_lock_free;
|
||||
#endif
|
||||
|
||||
// atomic<Integral>
|
||||
|
||||
template <class _Tp>
|
||||
struct __atomic_base<_Tp, true>
|
||||
: public __atomic_base<_Tp, false>
|
||||
{
|
||||
using __base = __atomic_base<_Tp, false>;
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
__atomic_base() _NOEXCEPT = default;
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_LIBCPP_CONSTEXPR __atomic_base(_Tp __d) _NOEXCEPT : __base(__d) {}
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
|
||||
return std::__cxx_atomic_fetch_add(std::addressof(this->__a_), __op, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
|
||||
return std::__cxx_atomic_fetch_add(std::addressof(this->__a_), __op, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
|
||||
return std::__cxx_atomic_fetch_sub(std::addressof(this->__a_), __op, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
|
||||
return std::__cxx_atomic_fetch_sub(std::addressof(this->__a_), __op, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
|
||||
return std::__cxx_atomic_fetch_and(std::addressof(this->__a_), __op, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
|
||||
return std::__cxx_atomic_fetch_and(std::addressof(this->__a_), __op, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
|
||||
return std::__cxx_atomic_fetch_or(std::addressof(this->__a_), __op, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
|
||||
return std::__cxx_atomic_fetch_or(std::addressof(this->__a_), __op, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
|
||||
return std::__cxx_atomic_fetch_xor(std::addressof(this->__a_), __op, __m);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
|
||||
return std::__cxx_atomic_fetch_xor(std::addressof(this->__a_), __op, __m);
|
||||
}
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator++(int) volatile _NOEXCEPT {return fetch_add(_Tp(1));}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator++(int) _NOEXCEPT {return fetch_add(_Tp(1));}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator--(int) volatile _NOEXCEPT {return fetch_sub(_Tp(1));}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator--(int) _NOEXCEPT {return fetch_sub(_Tp(1));}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator++() volatile _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator++() _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator--() volatile _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator--() _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator+=(_Tp __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator+=(_Tp __op) _NOEXCEPT {return fetch_add(__op) + __op;}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator-=(_Tp __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator-=(_Tp __op) _NOEXCEPT {return fetch_sub(__op) - __op;}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator&=(_Tp __op) volatile _NOEXCEPT {return fetch_and(__op) & __op;}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator&=(_Tp __op) _NOEXCEPT {return fetch_and(__op) & __op;}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator|=(_Tp __op) volatile _NOEXCEPT {return fetch_or(__op) | __op;}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator|=(_Tp __op) _NOEXCEPT {return fetch_or(__op) | __op;}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator^=(_Tp __op) volatile _NOEXCEPT {return fetch_xor(__op) ^ __op;}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp operator^=(_Tp __op) _NOEXCEPT {return fetch_xor(__op) ^ __op;}
|
||||
};
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_ATOMIC_BASE_H
|
||||
230
third_party/libcxx/__atomic/atomic_flag.h
vendored
Normal file
230
third_party/libcxx/__atomic/atomic_flag.h
vendored
Normal file
|
|
@ -0,0 +1,230 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_ATOMIC_FLAG_H
|
||||
#define _LIBCPP___ATOMIC_ATOMIC_FLAG_H
|
||||
|
||||
#include <__atomic/atomic_sync.h>
|
||||
#include <__atomic/contention_t.h>
|
||||
#include <__atomic/cxx_atomic_impl.h>
|
||||
#include <__atomic/memory_order.h>
|
||||
#include <__chrono/duration.h>
|
||||
#include <__config>
|
||||
#include <__threading_support>
|
||||
#include <cstdint>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
_LIBCPP_BEGIN_NAMESPACE_STD
|
||||
|
||||
struct atomic_flag
|
||||
{
|
||||
__cxx_atomic_impl<_LIBCPP_ATOMIC_FLAG_TYPE> __a_;
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool test(memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT
|
||||
{return _LIBCPP_ATOMIC_FLAG_TYPE(true) == __cxx_atomic_load(&__a_, __m);}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool test(memory_order __m = memory_order_seq_cst) const _NOEXCEPT
|
||||
{return _LIBCPP_ATOMIC_FLAG_TYPE(true) == __cxx_atomic_load(&__a_, __m);}
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool test_and_set(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
|
||||
{return __cxx_atomic_exchange(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(true), __m);}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool test_and_set(memory_order __m = memory_order_seq_cst) _NOEXCEPT
|
||||
{return __cxx_atomic_exchange(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(true), __m);}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void clear(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
|
||||
{__cxx_atomic_store(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(false), __m);}
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void clear(memory_order __m = memory_order_seq_cst) _NOEXCEPT
|
||||
{__cxx_atomic_store(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(false), __m);}
|
||||
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void wait(bool __v, memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT
|
||||
{__cxx_atomic_wait(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(__v), __m);}
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void wait(bool __v, memory_order __m = memory_order_seq_cst) const _NOEXCEPT
|
||||
{__cxx_atomic_wait(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(__v), __m);}
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void notify_one() volatile _NOEXCEPT
|
||||
{__cxx_atomic_notify_one(&__a_);}
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void notify_one() _NOEXCEPT
|
||||
{__cxx_atomic_notify_one(&__a_);}
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void notify_all() volatile _NOEXCEPT
|
||||
{__cxx_atomic_notify_all(&__a_);}
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
|
||||
void notify_all() _NOEXCEPT
|
||||
{__cxx_atomic_notify_all(&__a_);}
|
||||
|
||||
#if _LIBCPP_STD_VER >= 20
|
||||
_LIBCPP_HIDE_FROM_ABI constexpr
|
||||
atomic_flag() _NOEXCEPT : __a_(false) {}
|
||||
#else
|
||||
atomic_flag() _NOEXCEPT = default;
|
||||
#endif
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR
|
||||
atomic_flag(bool __b) _NOEXCEPT : __a_(__b) {} // EXTENSION
|
||||
|
||||
atomic_flag(const atomic_flag&) = delete;
|
||||
atomic_flag& operator=(const atomic_flag&) = delete;
|
||||
atomic_flag& operator=(const atomic_flag&) volatile = delete;
|
||||
|
||||
};
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_flag_test(const volatile atomic_flag* __o) _NOEXCEPT
|
||||
{
|
||||
return __o->test();
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_flag_test(const atomic_flag* __o) _NOEXCEPT
|
||||
{
|
||||
return __o->test();
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_flag_test_explicit(const volatile atomic_flag* __o, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->test(__m);
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_flag_test_explicit(const atomic_flag* __o, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->test(__m);
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_flag_test_and_set(volatile atomic_flag* __o) _NOEXCEPT
|
||||
{
|
||||
return __o->test_and_set();
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_flag_test_and_set(atomic_flag* __o) _NOEXCEPT
|
||||
{
|
||||
return __o->test_and_set();
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_flag_test_and_set_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->test_and_set(__m);
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
bool
|
||||
atomic_flag_test_and_set_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
return __o->test_and_set(__m);
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
void
|
||||
atomic_flag_clear(volatile atomic_flag* __o) _NOEXCEPT
|
||||
{
|
||||
__o->clear();
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
void
|
||||
atomic_flag_clear(atomic_flag* __o) _NOEXCEPT
|
||||
{
|
||||
__o->clear();
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
void
|
||||
atomic_flag_clear_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
__o->clear(__m);
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
void
|
||||
atomic_flag_clear_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
__o->clear(__m);
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
|
||||
void
|
||||
atomic_flag_wait(const volatile atomic_flag* __o, bool __v) _NOEXCEPT
|
||||
{
|
||||
__o->wait(__v);
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
|
||||
void
|
||||
atomic_flag_wait(const atomic_flag* __o, bool __v) _NOEXCEPT
|
||||
{
|
||||
__o->wait(__v);
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
|
||||
void
|
||||
atomic_flag_wait_explicit(const volatile atomic_flag* __o,
|
||||
bool __v, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
__o->wait(__v, __m);
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
|
||||
void
|
||||
atomic_flag_wait_explicit(const atomic_flag* __o,
|
||||
bool __v, memory_order __m) _NOEXCEPT
|
||||
{
|
||||
__o->wait(__v, __m);
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
|
||||
void
|
||||
atomic_flag_notify_one(volatile atomic_flag* __o) _NOEXCEPT
|
||||
{
|
||||
__o->notify_one();
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
|
||||
void
|
||||
atomic_flag_notify_one(atomic_flag* __o) _NOEXCEPT
|
||||
{
|
||||
__o->notify_one();
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
|
||||
void
|
||||
atomic_flag_notify_all(volatile atomic_flag* __o) _NOEXCEPT
|
||||
{
|
||||
__o->notify_all();
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
|
||||
void
|
||||
atomic_flag_notify_all(atomic_flag* __o) _NOEXCEPT
|
||||
{
|
||||
__o->notify_all();
|
||||
}
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_ATOMIC_FLAG_H
|
||||
27
third_party/libcxx/__atomic/atomic_init.h
vendored
Normal file
27
third_party/libcxx/__atomic/atomic_init.h
vendored
Normal file
|
|
@ -0,0 +1,27 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_ATOMIC_INIT_H
|
||||
#define _LIBCPP___ATOMIC_ATOMIC_INIT_H
|
||||
|
||||
#include <__config>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
#define ATOMIC_FLAG_INIT {false}
|
||||
#define ATOMIC_VAR_INIT(__v) {__v}
|
||||
|
||||
#if _LIBCPP_STD_VER >= 20 && !defined(_LIBCPP_DISABLE_DEPRECATION_WARNINGS)
|
||||
# if defined(_LIBCPP_CLANG_VER) && _LIBCPP_CLANG_VER >= 1400
|
||||
# pragma clang deprecated(ATOMIC_VAR_INIT)
|
||||
# endif
|
||||
#endif // _LIBCPP_STD_VER >= 20 && !defined(_LIBCPP_DISABLE_DEPRECATION_WARNINGS)
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_ATOMIC_INIT_H
|
||||
48
third_party/libcxx/__atomic/atomic_lock_free.h
vendored
Normal file
48
third_party/libcxx/__atomic/atomic_lock_free.h
vendored
Normal file
|
|
@ -0,0 +1,48 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_ATOMIC_LOCK_FREE_H
|
||||
#define _LIBCPP___ATOMIC_ATOMIC_LOCK_FREE_H
|
||||
|
||||
#include <__config>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
#if defined(__CLANG_ATOMIC_BOOL_LOCK_FREE)
|
||||
# define ATOMIC_BOOL_LOCK_FREE __CLANG_ATOMIC_BOOL_LOCK_FREE
|
||||
# define ATOMIC_CHAR_LOCK_FREE __CLANG_ATOMIC_CHAR_LOCK_FREE
|
||||
#ifndef _LIBCPP_HAS_NO_CHAR8_T
|
||||
# define ATOMIC_CHAR8_T_LOCK_FREE __CLANG_ATOMIC_CHAR8_T_LOCK_FREE
|
||||
#endif
|
||||
# define ATOMIC_CHAR16_T_LOCK_FREE __CLANG_ATOMIC_CHAR16_T_LOCK_FREE
|
||||
# define ATOMIC_CHAR32_T_LOCK_FREE __CLANG_ATOMIC_CHAR32_T_LOCK_FREE
|
||||
# define ATOMIC_WCHAR_T_LOCK_FREE __CLANG_ATOMIC_WCHAR_T_LOCK_FREE
|
||||
# define ATOMIC_SHORT_LOCK_FREE __CLANG_ATOMIC_SHORT_LOCK_FREE
|
||||
# define ATOMIC_INT_LOCK_FREE __CLANG_ATOMIC_INT_LOCK_FREE
|
||||
# define ATOMIC_LONG_LOCK_FREE __CLANG_ATOMIC_LONG_LOCK_FREE
|
||||
# define ATOMIC_LLONG_LOCK_FREE __CLANG_ATOMIC_LLONG_LOCK_FREE
|
||||
# define ATOMIC_POINTER_LOCK_FREE __CLANG_ATOMIC_POINTER_LOCK_FREE
|
||||
#elif defined(__GCC_ATOMIC_BOOL_LOCK_FREE)
|
||||
# define ATOMIC_BOOL_LOCK_FREE __GCC_ATOMIC_BOOL_LOCK_FREE
|
||||
# define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE
|
||||
#ifndef _LIBCPP_HAS_NO_CHAR8_T
|
||||
# define ATOMIC_CHAR8_T_LOCK_FREE __GCC_ATOMIC_CHAR8_T_LOCK_FREE
|
||||
#endif
|
||||
# define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE
|
||||
# define ATOMIC_CHAR32_T_LOCK_FREE __GCC_ATOMIC_CHAR32_T_LOCK_FREE
|
||||
# define ATOMIC_WCHAR_T_LOCK_FREE __GCC_ATOMIC_WCHAR_T_LOCK_FREE
|
||||
# define ATOMIC_SHORT_LOCK_FREE __GCC_ATOMIC_SHORT_LOCK_FREE
|
||||
# define ATOMIC_INT_LOCK_FREE __GCC_ATOMIC_INT_LOCK_FREE
|
||||
# define ATOMIC_LONG_LOCK_FREE __GCC_ATOMIC_LONG_LOCK_FREE
|
||||
# define ATOMIC_LLONG_LOCK_FREE __GCC_ATOMIC_LLONG_LOCK_FREE
|
||||
# define ATOMIC_POINTER_LOCK_FREE __GCC_ATOMIC_POINTER_LOCK_FREE
|
||||
#endif
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_ATOMIC_LOCK_FREE_H
|
||||
112
third_party/libcxx/__atomic/atomic_sync.h
vendored
Normal file
112
third_party/libcxx/__atomic/atomic_sync.h
vendored
Normal file
|
|
@ -0,0 +1,112 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_ATOMIC_SYNC_H
|
||||
#define _LIBCPP___ATOMIC_ATOMIC_SYNC_H
|
||||
|
||||
#include <__atomic/contention_t.h>
|
||||
#include <__atomic/cxx_atomic_impl.h>
|
||||
#include <__atomic/memory_order.h>
|
||||
#include <__availability>
|
||||
#include <__chrono/duration.h>
|
||||
#include <__config>
|
||||
#include <__memory/addressof.h>
|
||||
#include <__thread/poll_with_backoff.h>
|
||||
#include <__threading_support>
|
||||
#include <__type_traits/decay.h>
|
||||
#include <cstring>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
_LIBCPP_BEGIN_NAMESPACE_STD
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_THREADS
|
||||
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_EXPORTED_FROM_ABI void __cxx_atomic_notify_one(void const volatile*);
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_EXPORTED_FROM_ABI void __cxx_atomic_notify_all(void const volatile*);
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_EXPORTED_FROM_ABI __cxx_contention_t __libcpp_atomic_monitor(void const volatile*);
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_EXPORTED_FROM_ABI void __libcpp_atomic_wait(void const volatile*, __cxx_contention_t);
|
||||
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_EXPORTED_FROM_ABI void __cxx_atomic_notify_one(__cxx_atomic_contention_t const volatile*);
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_EXPORTED_FROM_ABI void __cxx_atomic_notify_all(__cxx_atomic_contention_t const volatile*);
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_EXPORTED_FROM_ABI __cxx_contention_t __libcpp_atomic_monitor(__cxx_atomic_contention_t const volatile*);
|
||||
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_EXPORTED_FROM_ABI void __libcpp_atomic_wait(__cxx_atomic_contention_t const volatile*, __cxx_contention_t);
|
||||
|
||||
template <class _Atp, class _Fn>
|
||||
struct __libcpp_atomic_wait_backoff_impl {
|
||||
_Atp* __a;
|
||||
_Fn __test_fn;
|
||||
_LIBCPP_AVAILABILITY_SYNC
|
||||
_LIBCPP_HIDE_FROM_ABI bool operator()(chrono::nanoseconds __elapsed) const
|
||||
{
|
||||
if(__elapsed > chrono::microseconds(64))
|
||||
{
|
||||
auto const __monitor = std::__libcpp_atomic_monitor(__a);
|
||||
if(__test_fn())
|
||||
return true;
|
||||
std::__libcpp_atomic_wait(__a, __monitor);
|
||||
}
|
||||
else if(__elapsed > chrono::microseconds(4))
|
||||
__libcpp_thread_yield();
|
||||
else
|
||||
{} // poll
|
||||
return false;
|
||||
}
|
||||
};
|
||||
|
||||
template <class _Atp, class _Fn>
|
||||
_LIBCPP_AVAILABILITY_SYNC
|
||||
_LIBCPP_HIDE_FROM_ABI bool __cxx_atomic_wait(_Atp* __a, _Fn && __test_fn)
|
||||
{
|
||||
__libcpp_atomic_wait_backoff_impl<_Atp, __decay_t<_Fn> > __backoff_fn = {__a, __test_fn};
|
||||
return std::__libcpp_thread_poll_with_backoff(__test_fn, __backoff_fn);
|
||||
}
|
||||
|
||||
#else // _LIBCPP_HAS_NO_THREADS
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI void __cxx_atomic_notify_all(__cxx_atomic_impl<_Tp> const volatile*) { }
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI void __cxx_atomic_notify_one(__cxx_atomic_impl<_Tp> const volatile*) { }
|
||||
template <class _Atp, class _Fn>
|
||||
_LIBCPP_HIDE_FROM_ABI bool __cxx_atomic_wait(_Atp*, _Fn && __test_fn)
|
||||
{
|
||||
return std::__libcpp_thread_poll_with_backoff(__test_fn, __spinning_backoff_policy());
|
||||
}
|
||||
|
||||
#endif // _LIBCPP_HAS_NO_THREADS
|
||||
|
||||
template <typename _Tp> _LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_nonatomic_compare_equal(_Tp const& __lhs, _Tp const& __rhs) {
|
||||
return std::memcmp(std::addressof(__lhs), std::addressof(__rhs), sizeof(_Tp)) == 0;
|
||||
}
|
||||
|
||||
template <class _Atp, class _Tp>
|
||||
struct __cxx_atomic_wait_test_fn_impl {
|
||||
_Atp* __a;
|
||||
_Tp __val;
|
||||
memory_order __order;
|
||||
_LIBCPP_HIDE_FROM_ABI bool operator()() const
|
||||
{
|
||||
return !std::__cxx_nonatomic_compare_equal(std::__cxx_atomic_load(__a, __order), __val);
|
||||
}
|
||||
};
|
||||
|
||||
template <class _Atp, class _Tp>
|
||||
_LIBCPP_AVAILABILITY_SYNC
|
||||
_LIBCPP_HIDE_FROM_ABI bool __cxx_atomic_wait(_Atp* __a, _Tp const __val, memory_order __order)
|
||||
{
|
||||
__cxx_atomic_wait_test_fn_impl<_Atp, _Tp> __test_fn = {__a, __val, __order};
|
||||
return std::__cxx_atomic_wait(__a, __test_fn);
|
||||
}
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_ATOMIC_SYNC_H
|
||||
34
third_party/libcxx/__atomic/check_memory_order.h
vendored
Normal file
34
third_party/libcxx/__atomic/check_memory_order.h
vendored
Normal file
|
|
@ -0,0 +1,34 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_CHECK_MEMORY_ORDER_H
|
||||
#define _LIBCPP___ATOMIC_CHECK_MEMORY_ORDER_H
|
||||
|
||||
#include <__config>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
#define _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) \
|
||||
_LIBCPP_DIAGNOSE_WARNING(__m == memory_order_consume || \
|
||||
__m == memory_order_acquire || \
|
||||
__m == memory_order_acq_rel, \
|
||||
"memory order argument to atomic operation is invalid")
|
||||
|
||||
#define _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) \
|
||||
_LIBCPP_DIAGNOSE_WARNING(__m == memory_order_release || \
|
||||
__m == memory_order_acq_rel, \
|
||||
"memory order argument to atomic operation is invalid")
|
||||
|
||||
#define _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__m, __f) \
|
||||
_LIBCPP_DIAGNOSE_WARNING(__f == memory_order_release || \
|
||||
__f == memory_order_acq_rel, \
|
||||
"memory order argument to atomic operation is invalid")
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_CHECK_MEMORY_ORDER_H
|
||||
32
third_party/libcxx/__atomic/contention_t.h
vendored
Normal file
32
third_party/libcxx/__atomic/contention_t.h
vendored
Normal file
|
|
@ -0,0 +1,32 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_CONTENTION_T_H
|
||||
#define _LIBCPP___ATOMIC_CONTENTION_T_H
|
||||
|
||||
#include <__atomic/cxx_atomic_impl.h>
|
||||
#include <__config>
|
||||
#include <cstdint>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
_LIBCPP_BEGIN_NAMESPACE_STD
|
||||
|
||||
#if defined(__linux__) || (defined(_AIX) && !defined(__64BIT__))
|
||||
using __cxx_contention_t = int32_t;
|
||||
#else
|
||||
using __cxx_contention_t = int64_t;
|
||||
#endif // __linux__ || (_AIX && !__64BIT__)
|
||||
|
||||
using __cxx_atomic_contention_t = __cxx_atomic_impl<__cxx_contention_t>;
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_CONTENTION_T_H
|
||||
831
third_party/libcxx/__atomic/cxx_atomic_impl.h
vendored
Normal file
831
third_party/libcxx/__atomic/cxx_atomic_impl.h
vendored
Normal file
|
|
@ -0,0 +1,831 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_CXX_ATOMIC_IMPL_H
|
||||
#define _LIBCPP___ATOMIC_CXX_ATOMIC_IMPL_H
|
||||
|
||||
#include <__atomic/is_always_lock_free.h>
|
||||
#include <__atomic/memory_order.h>
|
||||
#include <__config>
|
||||
#include <__memory/addressof.h>
|
||||
#include <__type_traits/conditional.h>
|
||||
#include <__type_traits/is_assignable.h>
|
||||
#include <__type_traits/is_trivially_copyable.h>
|
||||
#include <__type_traits/remove_const.h>
|
||||
#include <cstddef>
|
||||
#include <cstring>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
_LIBCPP_BEGIN_NAMESPACE_STD
|
||||
|
||||
#if defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) || \
|
||||
defined(_LIBCPP_ATOMIC_ONLY_USE_BUILTINS)
|
||||
|
||||
// [atomics.types.generic]p1 guarantees _Tp is trivially copyable. Because
|
||||
// the default operator= in an object is not volatile, a byte-by-byte copy
|
||||
// is required.
|
||||
template <typename _Tp, typename _Tv> _LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if<is_assignable<_Tp&, _Tv>::value>::type
|
||||
__cxx_atomic_assign_volatile(_Tp& __a_value, _Tv const& __val) {
|
||||
__a_value = __val;
|
||||
}
|
||||
template <typename _Tp, typename _Tv> _LIBCPP_HIDE_FROM_ABI
|
||||
typename enable_if<is_assignable<_Tp&, _Tv>::value>::type
|
||||
__cxx_atomic_assign_volatile(_Tp volatile& __a_value, _Tv volatile const& __val) {
|
||||
volatile char* __to = reinterpret_cast<volatile char*>(std::addressof(__a_value));
|
||||
volatile char* __end = __to + sizeof(_Tp);
|
||||
volatile const char* __from = reinterpret_cast<volatile const char*>(std::addressof(__val));
|
||||
while (__to != __end)
|
||||
*__to++ = *__from++;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)
|
||||
|
||||
template <typename _Tp>
|
||||
struct __cxx_atomic_base_impl {
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
#ifndef _LIBCPP_CXX03_LANG
|
||||
__cxx_atomic_base_impl() _NOEXCEPT = default;
|
||||
#else
|
||||
__cxx_atomic_base_impl() _NOEXCEPT : __a_value() {}
|
||||
#endif // _LIBCPP_CXX03_LANG
|
||||
_LIBCPP_CONSTEXPR explicit __cxx_atomic_base_impl(_Tp value) _NOEXCEPT
|
||||
: __a_value(value) {}
|
||||
_Tp __a_value;
|
||||
};
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR int __to_gcc_order(memory_order __order) {
|
||||
// Avoid switch statement to make this a constexpr.
|
||||
return __order == memory_order_relaxed ? __ATOMIC_RELAXED:
|
||||
(__order == memory_order_acquire ? __ATOMIC_ACQUIRE:
|
||||
(__order == memory_order_release ? __ATOMIC_RELEASE:
|
||||
(__order == memory_order_seq_cst ? __ATOMIC_SEQ_CST:
|
||||
(__order == memory_order_acq_rel ? __ATOMIC_ACQ_REL:
|
||||
__ATOMIC_CONSUME))));
|
||||
}
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR int __to_gcc_failure_order(memory_order __order) {
|
||||
// Avoid switch statement to make this a constexpr.
|
||||
return __order == memory_order_relaxed ? __ATOMIC_RELAXED:
|
||||
(__order == memory_order_acquire ? __ATOMIC_ACQUIRE:
|
||||
(__order == memory_order_release ? __ATOMIC_RELAXED:
|
||||
(__order == memory_order_seq_cst ? __ATOMIC_SEQ_CST:
|
||||
(__order == memory_order_acq_rel ? __ATOMIC_ACQUIRE:
|
||||
__ATOMIC_CONSUME))));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_init(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __val) {
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, __val);
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp>* __a, _Tp __val) {
|
||||
__a->__a_value = __val;
|
||||
}
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI inline
|
||||
void __cxx_atomic_thread_fence(memory_order __order) {
|
||||
__atomic_thread_fence(__to_gcc_order(__order));
|
||||
}
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI inline
|
||||
void __cxx_atomic_signal_fence(memory_order __order) {
|
||||
__atomic_signal_fence(__to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_store(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __val,
|
||||
memory_order __order) {
|
||||
__atomic_store(std::addressof(__a->__a_value), std::addressof(__val), __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp>* __a, _Tp __val,
|
||||
memory_order __order) {
|
||||
__atomic_store(std::addressof(__a->__a_value), std::addressof(__val), __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_load(const volatile __cxx_atomic_base_impl<_Tp>* __a,
|
||||
memory_order __order) {
|
||||
_Tp __ret;
|
||||
__atomic_load(std::addressof(__a->__a_value), std::addressof(__ret), __to_gcc_order(__order));
|
||||
return __ret;
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_load(const __cxx_atomic_base_impl<_Tp>* __a, memory_order __order) {
|
||||
_Tp __ret;
|
||||
__atomic_load(std::addressof(__a->__a_value), std::addressof(__ret), __to_gcc_order(__order));
|
||||
return __ret;
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_exchange(volatile __cxx_atomic_base_impl<_Tp>* __a,
|
||||
_Tp __value, memory_order __order) {
|
||||
_Tp __ret;
|
||||
__atomic_exchange(
|
||||
std::addressof(__a->__a_value), std::addressof(__value), std::addressof(__ret), __to_gcc_order(__order));
|
||||
return __ret;
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp>* __a, _Tp __value,
|
||||
memory_order __order) {
|
||||
_Tp __ret;
|
||||
__atomic_exchange(
|
||||
std::addressof(__a->__a_value), std::addressof(__value), std::addressof(__ret), __to_gcc_order(__order));
|
||||
return __ret;
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_strong(
|
||||
volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value,
|
||||
memory_order __success, memory_order __failure) {
|
||||
return __atomic_compare_exchange(
|
||||
std::addressof(__a->__a_value),
|
||||
__expected,
|
||||
std::addressof(__value),
|
||||
false,
|
||||
__to_gcc_order(__success),
|
||||
__to_gcc_failure_order(__failure));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_strong(
|
||||
__cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, memory_order __success,
|
||||
memory_order __failure) {
|
||||
return __atomic_compare_exchange(
|
||||
std::addressof(__a->__a_value),
|
||||
__expected,
|
||||
std::addressof(__value),
|
||||
false,
|
||||
__to_gcc_order(__success),
|
||||
__to_gcc_failure_order(__failure));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_weak(
|
||||
volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value,
|
||||
memory_order __success, memory_order __failure) {
|
||||
return __atomic_compare_exchange(
|
||||
std::addressof(__a->__a_value),
|
||||
__expected,
|
||||
std::addressof(__value),
|
||||
true,
|
||||
__to_gcc_order(__success),
|
||||
__to_gcc_failure_order(__failure));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_weak(
|
||||
__cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, memory_order __success,
|
||||
memory_order __failure) {
|
||||
return __atomic_compare_exchange(
|
||||
std::addressof(__a->__a_value),
|
||||
__expected,
|
||||
std::addressof(__value),
|
||||
true,
|
||||
__to_gcc_order(__success),
|
||||
__to_gcc_failure_order(__failure));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
struct __skip_amt { enum {value = 1}; };
|
||||
|
||||
template <typename _Tp>
|
||||
struct __skip_amt<_Tp*> { enum {value = sizeof(_Tp)}; };
|
||||
|
||||
// FIXME: Haven't figured out what the spec says about using arrays with
|
||||
// atomic_fetch_add. Force a failure rather than creating bad behavior.
|
||||
template <typename _Tp>
|
||||
struct __skip_amt<_Tp[]> { };
|
||||
template <typename _Tp, int n>
|
||||
struct __skip_amt<_Tp[n]> { };
|
||||
|
||||
template <typename _Tp, typename _Td>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_add(volatile __cxx_atomic_base_impl<_Tp>* __a,
|
||||
_Td __delta, memory_order __order) {
|
||||
return __atomic_fetch_add(std::addressof(__a->__a_value), __delta * __skip_amt<_Tp>::value, __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp, typename _Td>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta,
|
||||
memory_order __order) {
|
||||
return __atomic_fetch_add(std::addressof(__a->__a_value), __delta * __skip_amt<_Tp>::value, __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp, typename _Td>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_sub(volatile __cxx_atomic_base_impl<_Tp>* __a,
|
||||
_Td __delta, memory_order __order) {
|
||||
return __atomic_fetch_sub(std::addressof(__a->__a_value), __delta * __skip_amt<_Tp>::value, __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp, typename _Td>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta,
|
||||
memory_order __order) {
|
||||
return __atomic_fetch_sub(std::addressof(__a->__a_value), __delta * __skip_amt<_Tp>::value, __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_and(volatile __cxx_atomic_base_impl<_Tp>* __a,
|
||||
_Tp __pattern, memory_order __order) {
|
||||
return __atomic_fetch_and(std::addressof(__a->__a_value), __pattern, __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp>* __a,
|
||||
_Tp __pattern, memory_order __order) {
|
||||
return __atomic_fetch_and(std::addressof(__a->__a_value), __pattern, __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_or(volatile __cxx_atomic_base_impl<_Tp>* __a,
|
||||
_Tp __pattern, memory_order __order) {
|
||||
return __atomic_fetch_or(std::addressof(__a->__a_value), __pattern, __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp>* __a, _Tp __pattern,
|
||||
memory_order __order) {
|
||||
return __atomic_fetch_or(std::addressof(__a->__a_value), __pattern, __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_xor(volatile __cxx_atomic_base_impl<_Tp>* __a,
|
||||
_Tp __pattern, memory_order __order) {
|
||||
return __atomic_fetch_xor(std::addressof(__a->__a_value), __pattern, __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp>* __a, _Tp __pattern,
|
||||
memory_order __order) {
|
||||
return __atomic_fetch_xor(std::addressof(__a->__a_value), __pattern, __to_gcc_order(__order));
|
||||
}
|
||||
|
||||
#define __cxx_atomic_is_lock_free(__s) __atomic_is_lock_free(__s, 0)
|
||||
|
||||
#elif defined(_LIBCPP_HAS_C_ATOMIC_IMP)
|
||||
|
||||
template <typename _Tp>
|
||||
struct __cxx_atomic_base_impl {
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
#ifndef _LIBCPP_CXX03_LANG
|
||||
__cxx_atomic_base_impl() _NOEXCEPT = default;
|
||||
#else
|
||||
__cxx_atomic_base_impl() _NOEXCEPT : __a_value() {}
|
||||
#endif // _LIBCPP_CXX03_LANG
|
||||
_LIBCPP_CONSTEXPR explicit __cxx_atomic_base_impl(_Tp __value) _NOEXCEPT
|
||||
: __a_value(__value) {}
|
||||
_LIBCPP_DISABLE_EXTENSION_WARNING _Atomic(_Tp) __a_value;
|
||||
};
|
||||
|
||||
#define __cxx_atomic_is_lock_free(__s) __c11_atomic_is_lock_free(__s)
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI inline
|
||||
void __cxx_atomic_thread_fence(memory_order __order) _NOEXCEPT {
|
||||
__c11_atomic_thread_fence(static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI inline
|
||||
void __cxx_atomic_signal_fence(memory_order __order) _NOEXCEPT {
|
||||
__c11_atomic_signal_fence(static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __val) _NOEXCEPT {
|
||||
__c11_atomic_init(std::addressof(__a->__a_value), __val);
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp> * __a, _Tp __val) _NOEXCEPT {
|
||||
__c11_atomic_init(std::addressof(__a->__a_value), __val);
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __val, memory_order __order) _NOEXCEPT {
|
||||
__c11_atomic_store(std::addressof(__a->__a_value), __val, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp> * __a, _Tp __val, memory_order __order) _NOEXCEPT {
|
||||
__c11_atomic_store(std::addressof(__a->__a_value), __val, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_load(__cxx_atomic_base_impl<_Tp> const volatile* __a, memory_order __order) _NOEXCEPT {
|
||||
using __ptr_type = __remove_const_t<decltype(__a->__a_value)>*;
|
||||
return __c11_atomic_load(
|
||||
const_cast<__ptr_type>(std::addressof(__a->__a_value)), static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_load(__cxx_atomic_base_impl<_Tp> const* __a, memory_order __order) _NOEXCEPT {
|
||||
using __ptr_type = __remove_const_t<decltype(__a->__a_value)>*;
|
||||
return __c11_atomic_load(
|
||||
const_cast<__ptr_type>(std::addressof(__a->__a_value)), static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __value, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_exchange(
|
||||
std::addressof(__a->__a_value), __value, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp> * __a, _Tp __value, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_exchange(
|
||||
std::addressof(__a->__a_value), __value, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR memory_order __to_failure_order(memory_order __order) {
|
||||
// Avoid switch statement to make this a constexpr.
|
||||
return __order == memory_order_release ? memory_order_relaxed:
|
||||
(__order == memory_order_acq_rel ? memory_order_acquire:
|
||||
__order);
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_strong(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) _NOEXCEPT {
|
||||
return __c11_atomic_compare_exchange_strong(
|
||||
std::addressof(__a->__a_value),
|
||||
__expected,
|
||||
__value,
|
||||
static_cast<__memory_order_underlying_t>(__success),
|
||||
static_cast<__memory_order_underlying_t>(__to_failure_order(__failure)));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_strong(__cxx_atomic_base_impl<_Tp> * __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) _NOEXCEPT {
|
||||
return __c11_atomic_compare_exchange_strong(
|
||||
std::addressof(__a->__a_value),
|
||||
__expected,
|
||||
__value,
|
||||
static_cast<__memory_order_underlying_t>(__success),
|
||||
static_cast<__memory_order_underlying_t>(__to_failure_order(__failure)));
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_weak(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) _NOEXCEPT {
|
||||
return __c11_atomic_compare_exchange_weak(
|
||||
std::addressof(__a->__a_value),
|
||||
__expected,
|
||||
__value,
|
||||
static_cast<__memory_order_underlying_t>(__success),
|
||||
static_cast<__memory_order_underlying_t>(__to_failure_order(__failure)));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_weak(__cxx_atomic_base_impl<_Tp> * __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) _NOEXCEPT {
|
||||
return __c11_atomic_compare_exchange_weak(
|
||||
std::addressof(__a->__a_value),
|
||||
__expected,
|
||||
__value,
|
||||
static_cast<__memory_order_underlying_t>(__success),
|
||||
static_cast<__memory_order_underlying_t>(__to_failure_order(__failure)));
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __delta, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_add(
|
||||
std::addressof(__a->__a_value), __delta, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp> * __a, _Tp __delta, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_add(
|
||||
std::addressof(__a->__a_value), __delta, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp* __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp*> volatile* __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_add(
|
||||
std::addressof(__a->__a_value), __delta, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp* __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp*> * __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_add(
|
||||
std::addressof(__a->__a_value), __delta, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __delta, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_sub(
|
||||
std::addressof(__a->__a_value), __delta, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp> * __a, _Tp __delta, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_sub(
|
||||
std::addressof(__a->__a_value), __delta, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp* __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp*> volatile* __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_sub(
|
||||
std::addressof(__a->__a_value), __delta, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp* __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp*> * __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_sub(
|
||||
std::addressof(__a->__a_value), __delta, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_and(
|
||||
std::addressof(__a->__a_value), __pattern, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_and(
|
||||
std::addressof(__a->__a_value), __pattern, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_or(
|
||||
std::addressof(__a->__a_value), __pattern, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_or(
|
||||
std::addressof(__a->__a_value), __pattern, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_xor(
|
||||
std::addressof(__a->__a_value), __pattern, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
template<class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
|
||||
return __c11_atomic_fetch_xor(
|
||||
std::addressof(__a->__a_value), __pattern, static_cast<__memory_order_underlying_t>(__order));
|
||||
}
|
||||
|
||||
#endif // _LIBCPP_HAS_GCC_ATOMIC_IMP, _LIBCPP_HAS_C_ATOMIC_IMP
|
||||
|
||||
#ifdef _LIBCPP_ATOMIC_ONLY_USE_BUILTINS
|
||||
|
||||
template<typename _Tp>
|
||||
struct __cxx_atomic_lock_impl {
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
__cxx_atomic_lock_impl() _NOEXCEPT
|
||||
: __a_value(), __a_lock(0) {}
|
||||
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR explicit
|
||||
__cxx_atomic_lock_impl(_Tp value) _NOEXCEPT
|
||||
: __a_value(value), __a_lock(0) {}
|
||||
|
||||
_Tp __a_value;
|
||||
mutable __cxx_atomic_base_impl<_LIBCPP_ATOMIC_FLAG_TYPE> __a_lock;
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI void __lock() const volatile {
|
||||
while(1 == __cxx_atomic_exchange(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(true), memory_order_acquire))
|
||||
/*spin*/;
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI void __lock() const {
|
||||
while(1 == __cxx_atomic_exchange(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(true), memory_order_acquire))
|
||||
/*spin*/;
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI void __unlock() const volatile {
|
||||
__cxx_atomic_store(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(false), memory_order_release);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI void __unlock() const {
|
||||
__cxx_atomic_store(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(false), memory_order_release);
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp __read() const volatile {
|
||||
__lock();
|
||||
_Tp __old;
|
||||
__cxx_atomic_assign_volatile(__old, __a_value);
|
||||
__unlock();
|
||||
return __old;
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI _Tp __read() const {
|
||||
__lock();
|
||||
_Tp __old = __a_value;
|
||||
__unlock();
|
||||
return __old;
|
||||
}
|
||||
};
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_init(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __val) {
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, __val);
|
||||
}
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_init(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __val) {
|
||||
__a->__a_value = __val;
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_store(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __val, memory_order) {
|
||||
__a->__lock();
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, __val);
|
||||
__a->__unlock();
|
||||
}
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
void __cxx_atomic_store(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __val, memory_order) {
|
||||
__a->__lock();
|
||||
__a->__a_value = __val;
|
||||
__a->__unlock();
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_load(const volatile __cxx_atomic_lock_impl<_Tp>* __a, memory_order) {
|
||||
return __a->__read();
|
||||
}
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_load(const __cxx_atomic_lock_impl<_Tp>* __a, memory_order) {
|
||||
return __a->__read();
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_exchange(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __value, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old;
|
||||
__cxx_atomic_assign_volatile(__old, __a->__a_value);
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, __value);
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_exchange(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __value, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old = __a->__a_value;
|
||||
__a->__a_value = __value;
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_strong(volatile __cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Tp* __expected, _Tp __value, memory_order, memory_order) {
|
||||
_Tp __temp;
|
||||
__a->__lock();
|
||||
__cxx_atomic_assign_volatile(__temp, __a->__a_value);
|
||||
bool __ret = (std::memcmp(&__temp, __expected, sizeof(_Tp)) == 0);
|
||||
if(__ret)
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, __value);
|
||||
else
|
||||
__cxx_atomic_assign_volatile(*__expected, __a->__a_value);
|
||||
__a->__unlock();
|
||||
return __ret;
|
||||
}
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_strong(__cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Tp* __expected, _Tp __value, memory_order, memory_order) {
|
||||
__a->__lock();
|
||||
bool __ret = (std::memcmp(&__a->__a_value, __expected, sizeof(_Tp)) == 0);
|
||||
if(__ret)
|
||||
std::memcpy(&__a->__a_value, &__value, sizeof(_Tp));
|
||||
else
|
||||
std::memcpy(__expected, &__a->__a_value, sizeof(_Tp));
|
||||
__a->__unlock();
|
||||
return __ret;
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_weak(volatile __cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Tp* __expected, _Tp __value, memory_order, memory_order) {
|
||||
_Tp __temp;
|
||||
__a->__lock();
|
||||
__cxx_atomic_assign_volatile(__temp, __a->__a_value);
|
||||
bool __ret = (std::memcmp(&__temp, __expected, sizeof(_Tp)) == 0);
|
||||
if(__ret)
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, __value);
|
||||
else
|
||||
__cxx_atomic_assign_volatile(*__expected, __a->__a_value);
|
||||
__a->__unlock();
|
||||
return __ret;
|
||||
}
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
bool __cxx_atomic_compare_exchange_weak(__cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Tp* __expected, _Tp __value, memory_order, memory_order) {
|
||||
__a->__lock();
|
||||
bool __ret = (std::memcmp(&__a->__a_value, __expected, sizeof(_Tp)) == 0);
|
||||
if(__ret)
|
||||
std::memcpy(&__a->__a_value, &__value, sizeof(_Tp));
|
||||
else
|
||||
std::memcpy(__expected, &__a->__a_value, sizeof(_Tp));
|
||||
__a->__unlock();
|
||||
return __ret;
|
||||
}
|
||||
|
||||
template <typename _Tp, typename _Td>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_add(volatile __cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Td __delta, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old;
|
||||
__cxx_atomic_assign_volatile(__old, __a->__a_value);
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old + __delta));
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
template <typename _Tp, typename _Td>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_add(__cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Td __delta, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old = __a->__a_value;
|
||||
__a->__a_value += __delta;
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
|
||||
template <typename _Tp, typename _Td>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp* __cxx_atomic_fetch_add(volatile __cxx_atomic_lock_impl<_Tp*>* __a,
|
||||
ptrdiff_t __delta, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp* __old;
|
||||
__cxx_atomic_assign_volatile(__old, __a->__a_value);
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, __old + __delta);
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
template <typename _Tp, typename _Td>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp* __cxx_atomic_fetch_add(__cxx_atomic_lock_impl<_Tp*>* __a,
|
||||
ptrdiff_t __delta, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp* __old = __a->__a_value;
|
||||
__a->__a_value += __delta;
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
|
||||
template <typename _Tp, typename _Td>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_sub(volatile __cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Td __delta, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old;
|
||||
__cxx_atomic_assign_volatile(__old, __a->__a_value);
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old - __delta));
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
template <typename _Tp, typename _Td>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_sub(__cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Td __delta, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old = __a->__a_value;
|
||||
__a->__a_value -= __delta;
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_and(volatile __cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Tp __pattern, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old;
|
||||
__cxx_atomic_assign_volatile(__old, __a->__a_value);
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old & __pattern));
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_and(__cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Tp __pattern, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old = __a->__a_value;
|
||||
__a->__a_value &= __pattern;
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_or(volatile __cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Tp __pattern, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old;
|
||||
__cxx_atomic_assign_volatile(__old, __a->__a_value);
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old | __pattern));
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_or(__cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Tp __pattern, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old = __a->__a_value;
|
||||
__a->__a_value |= __pattern;
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_xor(volatile __cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Tp __pattern, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old;
|
||||
__cxx_atomic_assign_volatile(__old, __a->__a_value);
|
||||
__cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old ^ __pattern));
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
template <typename _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp __cxx_atomic_fetch_xor(__cxx_atomic_lock_impl<_Tp>* __a,
|
||||
_Tp __pattern, memory_order) {
|
||||
__a->__lock();
|
||||
_Tp __old = __a->__a_value;
|
||||
__a->__a_value ^= __pattern;
|
||||
__a->__unlock();
|
||||
return __old;
|
||||
}
|
||||
|
||||
template <typename _Tp,
|
||||
typename _Base = typename conditional<__libcpp_is_always_lock_free<_Tp>::__value,
|
||||
__cxx_atomic_base_impl<_Tp>,
|
||||
__cxx_atomic_lock_impl<_Tp> >::type>
|
||||
#else
|
||||
template <typename _Tp,
|
||||
typename _Base = __cxx_atomic_base_impl<_Tp> >
|
||||
#endif //_LIBCPP_ATOMIC_ONLY_USE_BUILTINS
|
||||
struct __cxx_atomic_impl : public _Base {
|
||||
static_assert(is_trivially_copyable<_Tp>::value,
|
||||
"std::atomic<T> requires that 'T' be a trivially copyable type");
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI __cxx_atomic_impl() _NOEXCEPT = default;
|
||||
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR explicit __cxx_atomic_impl(_Tp __value) _NOEXCEPT
|
||||
: _Base(__value) {}
|
||||
};
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_CXX_ATOMIC_IMPL_H
|
||||
38
third_party/libcxx/__atomic/fence.h
vendored
Normal file
38
third_party/libcxx/__atomic/fence.h
vendored
Normal file
|
|
@ -0,0 +1,38 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_FENCE_H
|
||||
#define _LIBCPP___ATOMIC_FENCE_H
|
||||
|
||||
#include <__atomic/cxx_atomic_impl.h>
|
||||
#include <__atomic/memory_order.h>
|
||||
#include <__config>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
_LIBCPP_BEGIN_NAMESPACE_STD
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
void
|
||||
atomic_thread_fence(memory_order __m) _NOEXCEPT
|
||||
{
|
||||
__cxx_atomic_thread_fence(__m);
|
||||
}
|
||||
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
void
|
||||
atomic_signal_fence(memory_order __m) _NOEXCEPT
|
||||
{
|
||||
__cxx_atomic_signal_fence(__m);
|
||||
}
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_FENCE_H
|
||||
28
third_party/libcxx/__atomic/is_always_lock_free.h
vendored
Normal file
28
third_party/libcxx/__atomic/is_always_lock_free.h
vendored
Normal file
|
|
@ -0,0 +1,28 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_IS_ALWAYS_LOCK_FREE_H
|
||||
#define _LIBCPP___ATOMIC_IS_ALWAYS_LOCK_FREE_H
|
||||
|
||||
#include <__config>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
_LIBCPP_BEGIN_NAMESPACE_STD
|
||||
|
||||
template <class _Tp>
|
||||
struct __libcpp_is_always_lock_free {
|
||||
// __atomic_always_lock_free is available in all Standard modes
|
||||
static const bool __value = __atomic_always_lock_free(sizeof(_Tp), 0);
|
||||
};
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_IS_ALWAYS_LOCK_FREE_H
|
||||
29
third_party/libcxx/__atomic/kill_dependency.h
vendored
Normal file
29
third_party/libcxx/__atomic/kill_dependency.h
vendored
Normal file
|
|
@ -0,0 +1,29 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_KILL_DEPENDENCY_H
|
||||
#define _LIBCPP___ATOMIC_KILL_DEPENDENCY_H
|
||||
|
||||
#include <__config>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
_LIBCPP_BEGIN_NAMESPACE_STD
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_HIDE_FROM_ABI
|
||||
_Tp kill_dependency(_Tp __y) _NOEXCEPT
|
||||
{
|
||||
return __y;
|
||||
}
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_KILL_DEPENDENCY_H
|
||||
72
third_party/libcxx/__atomic/memory_order.h
vendored
Normal file
72
third_party/libcxx/__atomic/memory_order.h
vendored
Normal file
|
|
@ -0,0 +1,72 @@
|
|||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP___ATOMIC_MEMORY_ORDER_H
|
||||
#define _LIBCPP___ATOMIC_MEMORY_ORDER_H
|
||||
|
||||
#include <__config>
|
||||
#include <__type_traits/is_same.h>
|
||||
#include <__type_traits/underlying_type.h>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
_LIBCPP_BEGIN_NAMESPACE_STD
|
||||
|
||||
// Figure out what the underlying type for `memory_order` would be if it were
|
||||
// declared as an unscoped enum (accounting for -fshort-enums). Use this result
|
||||
// to pin the underlying type in C++20.
|
||||
enum __legacy_memory_order {
|
||||
__mo_relaxed,
|
||||
__mo_consume,
|
||||
__mo_acquire,
|
||||
__mo_release,
|
||||
__mo_acq_rel,
|
||||
__mo_seq_cst
|
||||
};
|
||||
|
||||
using __memory_order_underlying_t = underlying_type<__legacy_memory_order>::type;
|
||||
|
||||
#if _LIBCPP_STD_VER >= 20
|
||||
|
||||
enum class memory_order : __memory_order_underlying_t {
|
||||
relaxed = __mo_relaxed,
|
||||
consume = __mo_consume,
|
||||
acquire = __mo_acquire,
|
||||
release = __mo_release,
|
||||
acq_rel = __mo_acq_rel,
|
||||
seq_cst = __mo_seq_cst
|
||||
};
|
||||
|
||||
static_assert((is_same<underlying_type<memory_order>::type, __memory_order_underlying_t>::value),
|
||||
"unexpected underlying type for std::memory_order");
|
||||
|
||||
inline constexpr auto memory_order_relaxed = memory_order::relaxed;
|
||||
inline constexpr auto memory_order_consume = memory_order::consume;
|
||||
inline constexpr auto memory_order_acquire = memory_order::acquire;
|
||||
inline constexpr auto memory_order_release = memory_order::release;
|
||||
inline constexpr auto memory_order_acq_rel = memory_order::acq_rel;
|
||||
inline constexpr auto memory_order_seq_cst = memory_order::seq_cst;
|
||||
|
||||
#else
|
||||
|
||||
enum memory_order {
|
||||
memory_order_relaxed = __mo_relaxed,
|
||||
memory_order_consume = __mo_consume,
|
||||
memory_order_acquire = __mo_acquire,
|
||||
memory_order_release = __mo_release,
|
||||
memory_order_acq_rel = __mo_acq_rel,
|
||||
memory_order_seq_cst = __mo_seq_cst,
|
||||
};
|
||||
|
||||
#endif // _LIBCPP_STD_VER >= 20
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP___ATOMIC_MEMORY_ORDER_H
|
||||
Loading…
Add table
Add a link
Reference in a new issue