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Differential D144258

[libc++][NFC] Replace _VSTD and _LIBCPP_INLINE_VISIBILITY in <__atomic/*>
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Authored by philnik on Feb 17 2023, 4:00 AM.

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Mordante
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Restricted Project
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rGef3a3b0726f4: [libc++][NFC] Replace _VSTD and _LIBCPP_INLINE_VISIBILITY in <__atomic/*>

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philnik created this revision.Feb 17 2023, 4:00 AM
Herald added a project: Restricted Project. · View Herald TranscriptFeb 17 2023, 4:00 AM
philnik requested review of this revision.Feb 17 2023, 4:00 AM
Herald added a project: Restricted Project. · View Herald TranscriptFeb 17 2023, 4:00 AM
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Harbormaster completed remote builds in B214375: Diff 498318.Feb 17 2023, 6:02 AM
Mordante accepted this revision.Feb 17 2023, 10:12 AM

Thanks! LGTM!

This revision is now accepted and ready to land.Feb 17 2023, 10:12 AM
Closed by commit rGef3a3b0726f4: [libc++][NFC] Replace _VSTD and _LIBCPP_INLINE_VISIBILITY in <__atomic/*> (authored by philnik). · Explain WhyFeb 17 2023, 12:54 PM
This revision was automatically updated to reflect the committed changes.
philnik added a commit: rGef3a3b0726f4: [libc++][NFC] Replace _VSTD and _LIBCPP_INLINE_VISIBILITY in <__atomic/*>.

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libcxx/
include/
__atomic/
154 lines
114 lines
70 lines
18 lines
202 lines
4 lines
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Diff 498482

libcxx/include/__atomic/atomic.h

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struct atomic struct atomic
: public __atomic_base<_Tp> : public __atomic_base<_Tp>
{ {
typedef __atomic_base<_Tp> __base; typedef __atomic_base<_Tp> __base;
typedef _Tp value_type; typedef _Tp value_type;
typedef value_type difference_type; typedef value_type difference_type;
#if _LIBCPP_STD_VER >= 20 #if _LIBCPP_STD_VER >= 20
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
atomic() = default; atomic() = default;
#else #else
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
atomic() _NOEXCEPT = default; atomic() _NOEXCEPT = default;
#endif #endif
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_LIBCPP_CONSTEXPR atomic(_Tp __d) _NOEXCEPT : __base(__d) {} _LIBCPP_CONSTEXPR atomic(_Tp __d) _NOEXCEPT : __base(__d) {}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator=(_Tp __d) volatile _NOEXCEPT _Tp operator=(_Tp __d) volatile _NOEXCEPT
{__base::store(__d); return __d;} {__base::store(__d); return __d;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator=(_Tp __d) _NOEXCEPT _Tp operator=(_Tp __d) _NOEXCEPT
{__base::store(__d); return __d;} {__base::store(__d); return __d;}
atomic& operator=(const atomic&) = delete; atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete; atomic& operator=(const atomic&) volatile = delete;
}; };
// atomic<T*> // atomic<T*>
template <class _Tp> template <class _Tp>
struct atomic<_Tp*> struct atomic<_Tp*>
: public __atomic_base<_Tp*> : public __atomic_base<_Tp*>
{ {
typedef __atomic_base<_Tp*> __base; typedef __atomic_base<_Tp*> __base;
typedef _Tp* value_type; typedef _Tp* value_type;
typedef ptrdiff_t difference_type; typedef ptrdiff_t difference_type;
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
atomic() _NOEXCEPT = default; atomic() _NOEXCEPT = default;
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_LIBCPP_CONSTEXPR atomic(_Tp* __d) _NOEXCEPT : __base(__d) {} _LIBCPP_CONSTEXPR atomic(_Tp* __d) _NOEXCEPT : __base(__d) {}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator=(_Tp* __d) volatile _NOEXCEPT _Tp* operator=(_Tp* __d) volatile _NOEXCEPT
{__base::store(__d); return __d;} {__base::store(__d); return __d;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator=(_Tp* __d) _NOEXCEPT _Tp* operator=(_Tp* __d) _NOEXCEPT
{__base::store(__d); return __d;} {__base::store(__d); return __d;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT { _Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
// __atomic_fetch_add accepts function pointers, guard against them. // __atomic_fetch_add accepts function pointers, guard against them.
static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed"); static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed");
return std::__cxx_atomic_fetch_add(&this->__a_, __op, __m); return std::__cxx_atomic_fetch_add(&this->__a_, __op, __m);
} }
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT { _Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
// __atomic_fetch_add accepts function pointers, guard against them. // __atomic_fetch_add accepts function pointers, guard against them.
static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed"); static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed");
return std::__cxx_atomic_fetch_add(&this->__a_, __op, __m); return std::__cxx_atomic_fetch_add(&this->__a_, __op, __m);
} }
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT { _Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT {
// __atomic_fetch_add accepts function pointers, guard against them. // __atomic_fetch_add accepts function pointers, guard against them.
static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed"); static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed");
return std::__cxx_atomic_fetch_sub(&this->__a_, __op, __m); return std::__cxx_atomic_fetch_sub(&this->__a_, __op, __m);
} }
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT { _Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT {
// __atomic_fetch_add accepts function pointers, guard against them. // __atomic_fetch_add accepts function pointers, guard against them.
static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed"); static_assert(!is_function<__remove_pointer_t<_Tp> >::value, "Pointer to function isn't allowed");
return std::__cxx_atomic_fetch_sub(&this->__a_, __op, __m); return std::__cxx_atomic_fetch_sub(&this->__a_, __op, __m);
} }
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator++(int) volatile _NOEXCEPT {return fetch_add(1);} _Tp* operator++(int) volatile _NOEXCEPT {return fetch_add(1);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator++(int) _NOEXCEPT {return fetch_add(1);} _Tp* operator++(int) _NOEXCEPT {return fetch_add(1);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator--(int) volatile _NOEXCEPT {return fetch_sub(1);} _Tp* operator--(int) volatile _NOEXCEPT {return fetch_sub(1);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator--(int) _NOEXCEPT {return fetch_sub(1);} _Tp* operator--(int) _NOEXCEPT {return fetch_sub(1);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator++() volatile _NOEXCEPT {return fetch_add(1) + 1;} _Tp* operator++() volatile _NOEXCEPT {return fetch_add(1) + 1;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator++() _NOEXCEPT {return fetch_add(1) + 1;} _Tp* operator++() _NOEXCEPT {return fetch_add(1) + 1;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator--() volatile _NOEXCEPT {return fetch_sub(1) - 1;} _Tp* operator--() volatile _NOEXCEPT {return fetch_sub(1) - 1;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator--() _NOEXCEPT {return fetch_sub(1) - 1;} _Tp* operator--() _NOEXCEPT {return fetch_sub(1) - 1;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator+=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;} _Tp* operator+=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator+=(ptrdiff_t __op) _NOEXCEPT {return fetch_add(__op) + __op;} _Tp* operator+=(ptrdiff_t __op) _NOEXCEPT {return fetch_add(__op) + __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator-=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;} _Tp* operator-=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* operator-=(ptrdiff_t __op) _NOEXCEPT {return fetch_sub(__op) - __op;} _Tp* operator-=(ptrdiff_t __op) _NOEXCEPT {return fetch_sub(__op) - __op;}
atomic& operator=(const atomic&) = delete; atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete; atomic& operator=(const atomic&) volatile = delete;
}; };
// atomic_is_lock_free // atomic_is_lock_free
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_is_lock_free(const volatile atomic<_Tp>* __o) _NOEXCEPT atomic_is_lock_free(const volatile atomic<_Tp>* __o) _NOEXCEPT
{ {
return __o->is_lock_free(); return __o->is_lock_free();
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_is_lock_free(const atomic<_Tp>* __o) _NOEXCEPT atomic_is_lock_free(const atomic<_Tp>* __o) _NOEXCEPT
{ {
return __o->is_lock_free(); return __o->is_lock_free();
} }
// atomic_init // atomic_init
template <class _Tp> template <class _Tp>
_LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_INLINE_VISIBILITY _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_HIDE_FROM_ABI
void void
atomic_init(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT atomic_init(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
{ {
std::__cxx_atomic_init(&__o->__a_, __d); std::__cxx_atomic_init(&__o->__a_, __d);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_INLINE_VISIBILITY _LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_HIDE_FROM_ABI
void void
atomic_init(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT atomic_init(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
{ {
std::__cxx_atomic_init(&__o->__a_, __d); std::__cxx_atomic_init(&__o->__a_, __d);
} }
// atomic_store // atomic_store
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void void
atomic_store(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT atomic_store(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
{ {
__o->store(__d); __o->store(__d);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void void
atomic_store(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT atomic_store(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
{ {
__o->store(__d); __o->store(__d);
} }
// atomic_store_explicit // atomic_store_explicit
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void void
atomic_store_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT atomic_store_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT
_LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m)
{ {
__o->store(__d, __m); __o->store(__d, __m);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void void
atomic_store_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT atomic_store_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT
_LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m)
{ {
__o->store(__d, __m); __o->store(__d, __m);
} }
// atomic_load // atomic_load
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp _Tp
atomic_load(const volatile atomic<_Tp>* __o) _NOEXCEPT atomic_load(const volatile atomic<_Tp>* __o) _NOEXCEPT
{ {
return __o->load(); return __o->load();
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp _Tp
atomic_load(const atomic<_Tp>* __o) _NOEXCEPT atomic_load(const atomic<_Tp>* __o) _NOEXCEPT
{ {
return __o->load(); return __o->load();
} }
// atomic_load_explicit // atomic_load_explicit
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp _Tp
atomic_load_explicit(const volatile atomic<_Tp>* __o, memory_order __m) _NOEXCEPT atomic_load_explicit(const volatile atomic<_Tp>* __o, memory_order __m) _NOEXCEPT
_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m)
{ {
return __o->load(__m); return __o->load(__m);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp _Tp
atomic_load_explicit(const atomic<_Tp>* __o, memory_order __m) _NOEXCEPT atomic_load_explicit(const atomic<_Tp>* __o, memory_order __m) _NOEXCEPT
_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m)
{ {
return __o->load(__m); return __o->load(__m);
} }
// atomic_exchange // atomic_exchange
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp _Tp
atomic_exchange(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT atomic_exchange(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
{ {
return __o->exchange(__d); return __o->exchange(__d);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp _Tp
atomic_exchange(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT atomic_exchange(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d) _NOEXCEPT
{ {
return __o->exchange(__d); return __o->exchange(__d);
} }
// atomic_exchange_explicit // atomic_exchange_explicit
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp _Tp
atomic_exchange_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT atomic_exchange_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT
{ {
return __o->exchange(__d, __m); return __o->exchange(__d, __m);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp _Tp
atomic_exchange_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT atomic_exchange_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __d, memory_order __m) _NOEXCEPT
{ {
return __o->exchange(__d, __m); return __o->exchange(__d, __m);
} }
// atomic_compare_exchange_weak // atomic_compare_exchange_weak
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_compare_exchange_weak(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d) _NOEXCEPT atomic_compare_exchange_weak(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d) _NOEXCEPT
{ {
return __o->compare_exchange_weak(*__e, __d); return __o->compare_exchange_weak(*__e, __d);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_compare_exchange_weak(atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d) _NOEXCEPT 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); return __o->compare_exchange_weak(*__e, __d);
} }
// atomic_compare_exchange_strong // atomic_compare_exchange_strong
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_compare_exchange_strong(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d) _NOEXCEPT 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); return __o->compare_exchange_strong(*__e, __d);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_compare_exchange_strong(atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d) _NOEXCEPT 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); return __o->compare_exchange_strong(*__e, __d);
} }
// atomic_compare_exchange_weak_explicit // atomic_compare_exchange_weak_explicit
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_compare_exchange_weak_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, atomic_compare_exchange_weak_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e,
typename atomic<_Tp>::value_type __d, typename atomic<_Tp>::value_type __d,
memory_order __s, memory_order __f) _NOEXCEPT memory_order __s, memory_order __f) _NOEXCEPT
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
{ {
return __o->compare_exchange_weak(*__e, __d, __s, __f); return __o->compare_exchange_weak(*__e, __d, __s, __f);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_compare_exchange_weak_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d, 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 memory_order __s, memory_order __f) _NOEXCEPT
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
{ {
return __o->compare_exchange_weak(*__e, __d, __s, __f); return __o->compare_exchange_weak(*__e, __d, __s, __f);
} }
// atomic_compare_exchange_strong_explicit // atomic_compare_exchange_strong_explicit
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_compare_exchange_strong_explicit(volatile atomic<_Tp>* __o, atomic_compare_exchange_strong_explicit(volatile atomic<_Tp>* __o,
typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d, typename atomic<_Tp>::value_type* __e, typename atomic<_Tp>::value_type __d,
memory_order __s, memory_order __f) _NOEXCEPT memory_order __s, memory_order __f) _NOEXCEPT
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
{ {
return __o->compare_exchange_strong(*__e, __d, __s, __f); return __o->compare_exchange_strong(*__e, __d, __s, __f);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_compare_exchange_strong_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e, atomic_compare_exchange_strong_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type* __e,
typename atomic<_Tp>::value_type __d, typename atomic<_Tp>::value_type __d,
memory_order __s, memory_order __f) _NOEXCEPT memory_order __s, memory_order __f) _NOEXCEPT
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
{ {
return __o->compare_exchange_strong(*__e, __d, __s, __f); return __o->compare_exchange_strong(*__e, __d, __s, __f);
} }
// atomic_wait // atomic_wait
template <class _Tp> template <class _Tp>
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void atomic_wait(const volatile atomic<_Tp>* __o, void atomic_wait(const volatile atomic<_Tp>* __o,
typename atomic<_Tp>::value_type __v) _NOEXCEPT typename atomic<_Tp>::value_type __v) _NOEXCEPT
{ {
return __o->wait(__v); return __o->wait(__v);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void atomic_wait(const atomic<_Tp>* __o, void atomic_wait(const atomic<_Tp>* __o,
typename atomic<_Tp>::value_type __v) _NOEXCEPT typename atomic<_Tp>::value_type __v) _NOEXCEPT
{ {
return __o->wait(__v); return __o->wait(__v);
} }
// atomic_wait_explicit // atomic_wait_explicit
template <class _Tp> template <class _Tp>
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void atomic_wait_explicit(const volatile atomic<_Tp>* __o, void atomic_wait_explicit(const volatile atomic<_Tp>* __o,
typename atomic<_Tp>::value_type __v, typename atomic<_Tp>::value_type __v,
memory_order __m) _NOEXCEPT memory_order __m) _NOEXCEPT
_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m)
{ {
return __o->wait(__v, __m); return __o->wait(__v, __m);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void atomic_wait_explicit(const atomic<_Tp>* __o, void atomic_wait_explicit(const atomic<_Tp>* __o,
typename atomic<_Tp>::value_type __v, typename atomic<_Tp>::value_type __v,
memory_order __m) _NOEXCEPT memory_order __m) _NOEXCEPT
_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m)
{ {
return __o->wait(__v, __m); return __o->wait(__v, __m);
} }
// atomic_notify_one // atomic_notify_one
template <class _Tp> template <class _Tp>
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void atomic_notify_one(volatile atomic<_Tp>* __o) _NOEXCEPT void atomic_notify_one(volatile atomic<_Tp>* __o) _NOEXCEPT
{ {
__o->notify_one(); __o->notify_one();
} }
template <class _Tp> template <class _Tp>
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void atomic_notify_one(atomic<_Tp>* __o) _NOEXCEPT void atomic_notify_one(atomic<_Tp>* __o) _NOEXCEPT
{ {
__o->notify_one(); __o->notify_one();
} }
// atomic_notify_all // atomic_notify_all
template <class _Tp> template <class _Tp>
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void atomic_notify_all(volatile atomic<_Tp>* __o) _NOEXCEPT void atomic_notify_all(volatile atomic<_Tp>* __o) _NOEXCEPT
{ {
__o->notify_all(); __o->notify_all();
} }
template <class _Tp> template <class _Tp>
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void atomic_notify_all(atomic<_Tp>* __o) _NOEXCEPT void atomic_notify_all(atomic<_Tp>* __o) _NOEXCEPT
{ {
__o->notify_all(); __o->notify_all();
} }
// atomic_fetch_add // atomic_fetch_add
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp _Tp
atomic_fetch_add(volatile atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT atomic_fetch_add(volatile atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT
{ {
return __o->fetch_add(__op); return __o->fetch_add(__op);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp _Tp
atomic_fetch_add(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT atomic_fetch_add(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT
{ {
return __o->fetch_add(__op); return __o->fetch_add(__op);
} }
// atomic_fetch_add_explicit // atomic_fetch_add_explicit
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp atomic_fetch_add_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op, memory_order __m) _NOEXCEPT _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); return __o->fetch_add(__op, __m);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp atomic_fetch_add_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op, memory_order __m) _NOEXCEPT _Tp atomic_fetch_add_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op, memory_order __m) _NOEXCEPT
{ {
return __o->fetch_add(__op, __m); return __o->fetch_add(__op, __m);
} }
// atomic_fetch_sub // atomic_fetch_sub
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp atomic_fetch_sub(volatile atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT _Tp atomic_fetch_sub(volatile atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT
{ {
return __o->fetch_sub(__op); return __o->fetch_sub(__op);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp atomic_fetch_sub(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT _Tp atomic_fetch_sub(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op) _NOEXCEPT
{ {
return __o->fetch_sub(__op); return __o->fetch_sub(__op);
} }
// atomic_fetch_sub_explicit // atomic_fetch_sub_explicit
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp atomic_fetch_sub_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op, memory_order __m) _NOEXCEPT _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); return __o->fetch_sub(__op, __m);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp atomic_fetch_sub_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op, memory_order __m) _NOEXCEPT _Tp atomic_fetch_sub_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::difference_type __op, memory_order __m) _NOEXCEPT
{ {
return __o->fetch_sub(__op, __m); return __o->fetch_sub(__op, __m);
} }
// atomic_fetch_and // atomic_fetch_and
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_and(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT atomic_fetch_and(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
{ {
return __o->fetch_and(__op); return __o->fetch_and(__op);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_and(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT atomic_fetch_and(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
{ {
return __o->fetch_and(__op); return __o->fetch_and(__op);
} }
// atomic_fetch_and_explicit // atomic_fetch_and_explicit
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_and_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT atomic_fetch_and_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
{ {
return __o->fetch_and(__op, __m); return __o->fetch_and(__op, __m);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_and_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT atomic_fetch_and_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
{ {
return __o->fetch_and(__op, __m); return __o->fetch_and(__op, __m);
} }
// atomic_fetch_or // atomic_fetch_or
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_or(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT atomic_fetch_or(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
{ {
return __o->fetch_or(__op); return __o->fetch_or(__op);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_or(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT atomic_fetch_or(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
{ {
return __o->fetch_or(__op); return __o->fetch_or(__op);
} }
// atomic_fetch_or_explicit // atomic_fetch_or_explicit
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_or_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT atomic_fetch_or_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
{ {
return __o->fetch_or(__op, __m); return __o->fetch_or(__op, __m);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_or_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT atomic_fetch_or_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
{ {
return __o->fetch_or(__op, __m); return __o->fetch_or(__op, __m);
} }
// atomic_fetch_xor // atomic_fetch_xor
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_xor(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT atomic_fetch_xor(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
{ {
return __o->fetch_xor(__op); return __o->fetch_xor(__op);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_xor(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT atomic_fetch_xor(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op) _NOEXCEPT
{ {
return __o->fetch_xor(__op); return __o->fetch_xor(__op);
} }
// atomic_fetch_xor_explicit // atomic_fetch_xor_explicit
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_xor_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT atomic_fetch_xor_explicit(volatile atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
{ {
return __o->fetch_xor(__op, __m); return __o->fetch_xor(__op, __m);
} }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
typename enable_if typename enable_if
< <
is_integral<_Tp>::value && !is_same<_Tp, bool>::value, is_integral<_Tp>::value && !is_same<_Tp, bool>::value,
_Tp _Tp
>::type >::type
atomic_fetch_xor_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT atomic_fetch_xor_explicit(atomic<_Tp>* __o, typename atomic<_Tp>::value_type __op, memory_order __m) _NOEXCEPT
{ {
return __o->fetch_xor(__op, __m); return __o->fetch_xor(__op, __m);
} }
_LIBCPP_END_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ATOMIC_ATOMIC_H #endif // _LIBCPP___ATOMIC_ATOMIC_H

libcxx/include/__atomic/atomic_base.h

Show All 30 Lines
struct __atomic_base // false struct __atomic_base // false
{ {
mutable __cxx_atomic_impl<_Tp> __a_; mutable __cxx_atomic_impl<_Tp> __a_;
#if defined(__cpp_lib_atomic_is_always_lock_free) #if defined(__cpp_lib_atomic_is_always_lock_free)
static _LIBCPP_CONSTEXPR bool is_always_lock_free = __libcpp_is_always_lock_free<__cxx_atomic_impl<_Tp> >::__value; static _LIBCPP_CONSTEXPR bool is_always_lock_free = __libcpp_is_always_lock_free<__cxx_atomic_impl<_Tp> >::__value;
#endif #endif
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool is_lock_free() const volatile _NOEXCEPT bool is_lock_free() const volatile _NOEXCEPT
{return __cxx_atomic_is_lock_free(sizeof(_Tp));} {return __cxx_atomic_is_lock_free(sizeof(_Tp));}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool is_lock_free() const _NOEXCEPT bool is_lock_free() const _NOEXCEPT
{return static_cast<__atomic_base const volatile*>(this)->is_lock_free();} {return static_cast<__atomic_base const volatile*>(this)->is_lock_free();}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void store(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT void store(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
_LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m)
{std::__cxx_atomic_store(&__a_, __d, __m);} {std::__cxx_atomic_store(&__a_, __d, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void store(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT void store(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT
_LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m)
{std::__cxx_atomic_store(&__a_, __d, __m);} {std::__cxx_atomic_store(&__a_, __d, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp load(memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT _Tp load(memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT
_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m)
{return std::__cxx_atomic_load(&__a_, __m);} {return std::__cxx_atomic_load(&__a_, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp load(memory_order __m = memory_order_seq_cst) const _NOEXCEPT _Tp load(memory_order __m = memory_order_seq_cst) const _NOEXCEPT
_LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m)
{return std::__cxx_atomic_load(&__a_, __m);} {return std::__cxx_atomic_load(&__a_, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
operator _Tp() const volatile _NOEXCEPT {return load();} operator _Tp() const volatile _NOEXCEPT {return load();}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
operator _Tp() const _NOEXCEPT {return load();} operator _Tp() const _NOEXCEPT {return load();}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT _Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
{return std::__cxx_atomic_exchange(&__a_, __d, __m);} {return std::__cxx_atomic_exchange(&__a_, __d, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT _Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT
{return std::__cxx_atomic_exchange(&__a_, __d, __m);} {return std::__cxx_atomic_exchange(&__a_, __d, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool compare_exchange_weak(_Tp& __e, _Tp __d, bool compare_exchange_weak(_Tp& __e, _Tp __d,
memory_order __s, memory_order __f) volatile _NOEXCEPT memory_order __s, memory_order __f) volatile _NOEXCEPT
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
{return std::__cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);} {return std::__cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool compare_exchange_weak(_Tp& __e, _Tp __d, bool compare_exchange_weak(_Tp& __e, _Tp __d,
memory_order __s, memory_order __f) _NOEXCEPT memory_order __s, memory_order __f) _NOEXCEPT
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
{return std::__cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);} {return std::__cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool compare_exchange_strong(_Tp& __e, _Tp __d, bool compare_exchange_strong(_Tp& __e, _Tp __d,
memory_order __s, memory_order __f) volatile _NOEXCEPT memory_order __s, memory_order __f) volatile _NOEXCEPT
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
{return std::__cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);} {return std::__cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool compare_exchange_strong(_Tp& __e, _Tp __d, bool compare_exchange_strong(_Tp& __e, _Tp __d,
memory_order __s, memory_order __f) _NOEXCEPT memory_order __s, memory_order __f) _NOEXCEPT
_LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f)
{return std::__cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);} {return std::__cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool compare_exchange_weak(_Tp& __e, _Tp __d, bool compare_exchange_weak(_Tp& __e, _Tp __d,
memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
{return std::__cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __m, __m);} {return std::__cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __m, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool compare_exchange_weak(_Tp& __e, _Tp __d, bool compare_exchange_weak(_Tp& __e, _Tp __d,
memory_order __m = memory_order_seq_cst) _NOEXCEPT memory_order __m = memory_order_seq_cst) _NOEXCEPT
{return std::__cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __m, __m);} {return std::__cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __m, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool compare_exchange_strong(_Tp& __e, _Tp __d, bool compare_exchange_strong(_Tp& __e, _Tp __d,
memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
{return std::__cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __m, __m);} {return std::__cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __m, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool compare_exchange_strong(_Tp& __e, _Tp __d, bool compare_exchange_strong(_Tp& __e, _Tp __d,
memory_order __m = memory_order_seq_cst) _NOEXCEPT memory_order __m = memory_order_seq_cst) _NOEXCEPT
{return std::__cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __m, __m);} {return std::__cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __m, __m);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY void wait(_Tp __v, memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT _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(&__a_, __v, __m);} {std::__cxx_atomic_wait(&__a_, __v, __m);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY void wait(_Tp __v, memory_order __m = memory_order_seq_cst) const _NOEXCEPT _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI void wait(_Tp __v, memory_order __m = memory_order_seq_cst) const _NOEXCEPT
{std::__cxx_atomic_wait(&__a_, __v, __m);} {std::__cxx_atomic_wait(&__a_, __v, __m);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY void notify_one() volatile _NOEXCEPT _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI void notify_one() volatile _NOEXCEPT
{std::__cxx_atomic_notify_one(&__a_);} {std::__cxx_atomic_notify_one(&__a_);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY void notify_one() _NOEXCEPT _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI void notify_one() _NOEXCEPT
{std::__cxx_atomic_notify_one(&__a_);} {std::__cxx_atomic_notify_one(&__a_);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY void notify_all() volatile _NOEXCEPT _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI void notify_all() volatile _NOEXCEPT
{std::__cxx_atomic_notify_all(&__a_);} {std::__cxx_atomic_notify_all(&__a_);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY void notify_all() _NOEXCEPT _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI void notify_all() _NOEXCEPT
{std::__cxx_atomic_notify_all(&__a_);} {std::__cxx_atomic_notify_all(&__a_);}
#if _LIBCPP_STD_VER >= 20 #if _LIBCPP_STD_VER >= 20
_LIBCPP_INLINE_VISIBILITY constexpr _LIBCPP_HIDE_FROM_ABI constexpr
__atomic_base() noexcept(is_nothrow_default_constructible_v<_Tp>) : __a_(_Tp()) {} __atomic_base() noexcept(is_nothrow_default_constructible_v<_Tp>) : __a_(_Tp()) {}
#else #else
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
__atomic_base() _NOEXCEPT = default; __atomic_base() _NOEXCEPT = default;
#endif #endif
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR
__atomic_base(_Tp __d) _NOEXCEPT : __a_(__d) {} __atomic_base(_Tp __d) _NOEXCEPT : __a_(__d) {}
__atomic_base(const __atomic_base&) = delete; __atomic_base(const __atomic_base&) = delete;
}; };
#if defined(__cpp_lib_atomic_is_always_lock_free) #if defined(__cpp_lib_atomic_is_always_lock_free)
template <class _Tp, bool __b> template <class _Tp, bool __b>
_LIBCPP_CONSTEXPR bool __atomic_base<_Tp, __b>::is_always_lock_free; _LIBCPP_CONSTEXPR bool __atomic_base<_Tp, __b>::is_always_lock_free;
#endif #endif
// atomic<Integral> // atomic<Integral>
template <class _Tp> template <class _Tp>
struct __atomic_base<_Tp, true> struct __atomic_base<_Tp, true>
: public __atomic_base<_Tp, false> : public __atomic_base<_Tp, false>
{ {
typedef __atomic_base<_Tp, false> __base; typedef __atomic_base<_Tp, false> __base;
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
__atomic_base() _NOEXCEPT = default; __atomic_base() _NOEXCEPT = default;
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_LIBCPP_CONSTEXPR __atomic_base(_Tp __d) _NOEXCEPT : __base(__d) {} _LIBCPP_CONSTEXPR __atomic_base(_Tp __d) _NOEXCEPT : __base(__d) {}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT _Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
{return std::__cxx_atomic_fetch_add(&this->__a_, __op, __m);} {return std::__cxx_atomic_fetch_add(&this->__a_, __op, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT _Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
{return std::__cxx_atomic_fetch_add(&this->__a_, __op, __m);} {return std::__cxx_atomic_fetch_add(&this->__a_, __op, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT _Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
{return std::__cxx_atomic_fetch_sub(&this->__a_, __op, __m);} {return std::__cxx_atomic_fetch_sub(&this->__a_, __op, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT _Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
{return std::__cxx_atomic_fetch_sub(&this->__a_, __op, __m);} {return std::__cxx_atomic_fetch_sub(&this->__a_, __op, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT _Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
{return std::__cxx_atomic_fetch_and(&this->__a_, __op, __m);} {return std::__cxx_atomic_fetch_and(&this->__a_, __op, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT _Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
{return std::__cxx_atomic_fetch_and(&this->__a_, __op, __m);} {return std::__cxx_atomic_fetch_and(&this->__a_, __op, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT _Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
{return std::__cxx_atomic_fetch_or(&this->__a_, __op, __m);} {return std::__cxx_atomic_fetch_or(&this->__a_, __op, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT _Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
{return std::__cxx_atomic_fetch_or(&this->__a_, __op, __m);} {return std::__cxx_atomic_fetch_or(&this->__a_, __op, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT _Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
{return std::__cxx_atomic_fetch_xor(&this->__a_, __op, __m);} {return std::__cxx_atomic_fetch_xor(&this->__a_, __op, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT _Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT
{return std::__cxx_atomic_fetch_xor(&this->__a_, __op, __m);} {return std::__cxx_atomic_fetch_xor(&this->__a_, __op, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator++(int) volatile _NOEXCEPT {return fetch_add(_Tp(1));} _Tp operator++(int) volatile _NOEXCEPT {return fetch_add(_Tp(1));}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator++(int) _NOEXCEPT {return fetch_add(_Tp(1));} _Tp operator++(int) _NOEXCEPT {return fetch_add(_Tp(1));}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator--(int) volatile _NOEXCEPT {return fetch_sub(_Tp(1));} _Tp operator--(int) volatile _NOEXCEPT {return fetch_sub(_Tp(1));}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator--(int) _NOEXCEPT {return fetch_sub(_Tp(1));} _Tp operator--(int) _NOEXCEPT {return fetch_sub(_Tp(1));}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator++() volatile _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);} _Tp operator++() volatile _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator++() _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);} _Tp operator++() _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator--() volatile _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);} _Tp operator--() volatile _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator--() _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);} _Tp operator--() _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator+=(_Tp __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;} _Tp operator+=(_Tp __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator+=(_Tp __op) _NOEXCEPT {return fetch_add(__op) + __op;} _Tp operator+=(_Tp __op) _NOEXCEPT {return fetch_add(__op) + __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator-=(_Tp __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;} _Tp operator-=(_Tp __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator-=(_Tp __op) _NOEXCEPT {return fetch_sub(__op) - __op;} _Tp operator-=(_Tp __op) _NOEXCEPT {return fetch_sub(__op) - __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator&=(_Tp __op) volatile _NOEXCEPT {return fetch_and(__op) & __op;} _Tp operator&=(_Tp __op) volatile _NOEXCEPT {return fetch_and(__op) & __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator&=(_Tp __op) _NOEXCEPT {return fetch_and(__op) & __op;} _Tp operator&=(_Tp __op) _NOEXCEPT {return fetch_and(__op) & __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator|=(_Tp __op) volatile _NOEXCEPT {return fetch_or(__op) | __op;} _Tp operator|=(_Tp __op) volatile _NOEXCEPT {return fetch_or(__op) | __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator|=(_Tp __op) _NOEXCEPT {return fetch_or(__op) | __op;} _Tp operator|=(_Tp __op) _NOEXCEPT {return fetch_or(__op) | __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator^=(_Tp __op) volatile _NOEXCEPT {return fetch_xor(__op) ^ __op;} _Tp operator^=(_Tp __op) volatile _NOEXCEPT {return fetch_xor(__op) ^ __op;}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp operator^=(_Tp __op) _NOEXCEPT {return fetch_xor(__op) ^ __op;} _Tp operator^=(_Tp __op) _NOEXCEPT {return fetch_xor(__op) ^ __op;}
}; };
_LIBCPP_END_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ATOMIC_ATOMIC_BASE_H #endif // _LIBCPP___ATOMIC_ATOMIC_BASE_H

libcxx/include/__atomic/atomic_flag.h

Show All 22 Lines
#endif #endif
_LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_BEGIN_NAMESPACE_STD
typedef struct atomic_flag typedef struct atomic_flag
{ {
__cxx_atomic_impl<_LIBCPP_ATOMIC_FLAG_TYPE> __a_; __cxx_atomic_impl<_LIBCPP_ATOMIC_FLAG_TYPE> __a_;
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool test(memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT bool test(memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT
{return _LIBCPP_ATOMIC_FLAG_TYPE(true) == __cxx_atomic_load(&__a_, __m);} {return _LIBCPP_ATOMIC_FLAG_TYPE(true) == __cxx_atomic_load(&__a_, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool test(memory_order __m = memory_order_seq_cst) const _NOEXCEPT bool test(memory_order __m = memory_order_seq_cst) const _NOEXCEPT
{return _LIBCPP_ATOMIC_FLAG_TYPE(true) == __cxx_atomic_load(&__a_, __m);} {return _LIBCPP_ATOMIC_FLAG_TYPE(true) == __cxx_atomic_load(&__a_, __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool test_and_set(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT bool test_and_set(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
{return __cxx_atomic_exchange(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(true), __m);} {return __cxx_atomic_exchange(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(true), __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool test_and_set(memory_order __m = memory_order_seq_cst) _NOEXCEPT bool test_and_set(memory_order __m = memory_order_seq_cst) _NOEXCEPT
{return __cxx_atomic_exchange(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(true), __m);} {return __cxx_atomic_exchange(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(true), __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void clear(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT void clear(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT
{__cxx_atomic_store(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(false), __m);} {__cxx_atomic_store(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(false), __m);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void clear(memory_order __m = memory_order_seq_cst) _NOEXCEPT void clear(memory_order __m = memory_order_seq_cst) _NOEXCEPT
{__cxx_atomic_store(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(false), __m);} {__cxx_atomic_store(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(false), __m);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void wait(bool __v, memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT void wait(bool __v, memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT
{__cxx_atomic_wait(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(__v), __m);} {__cxx_atomic_wait(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(__v), __m);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void wait(bool __v, memory_order __m = memory_order_seq_cst) const _NOEXCEPT void wait(bool __v, memory_order __m = memory_order_seq_cst) const _NOEXCEPT
{__cxx_atomic_wait(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(__v), __m);} {__cxx_atomic_wait(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(__v), __m);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void notify_one() volatile _NOEXCEPT void notify_one() volatile _NOEXCEPT
{__cxx_atomic_notify_one(&__a_);} {__cxx_atomic_notify_one(&__a_);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void notify_one() _NOEXCEPT void notify_one() _NOEXCEPT
{__cxx_atomic_notify_one(&__a_);} {__cxx_atomic_notify_one(&__a_);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void notify_all() volatile _NOEXCEPT void notify_all() volatile _NOEXCEPT
{__cxx_atomic_notify_all(&__a_);} {__cxx_atomic_notify_all(&__a_);}
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC _LIBCPP_HIDE_FROM_ABI
void notify_all() _NOEXCEPT void notify_all() _NOEXCEPT
{__cxx_atomic_notify_all(&__a_);} {__cxx_atomic_notify_all(&__a_);}
#if _LIBCPP_STD_VER >= 20 #if _LIBCPP_STD_VER >= 20
_LIBCPP_INLINE_VISIBILITY constexpr _LIBCPP_HIDE_FROM_ABI constexpr
atomic_flag() _NOEXCEPT : __a_(false) {} atomic_flag() _NOEXCEPT : __a_(false) {}
#else #else
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
atomic_flag() _NOEXCEPT = default; atomic_flag() _NOEXCEPT = default;
#endif #endif
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR
atomic_flag(bool __b) _NOEXCEPT : __a_(__b) {} // EXTENSION atomic_flag(bool __b) _NOEXCEPT : __a_(__b) {} // EXTENSION
atomic_flag(const atomic_flag&) = delete; atomic_flag(const atomic_flag&) = delete;
atomic_flag& operator=(const atomic_flag&) = delete; atomic_flag& operator=(const atomic_flag&) = delete;
atomic_flag& operator=(const atomic_flag&) volatile = delete; atomic_flag& operator=(const atomic_flag&) volatile = delete;
} atomic_flag; } atomic_flag;
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_flag_test(const volatile atomic_flag* __o) _NOEXCEPT atomic_flag_test(const volatile atomic_flag* __o) _NOEXCEPT
{ {
return __o->test(); return __o->test();
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_flag_test(const atomic_flag* __o) _NOEXCEPT atomic_flag_test(const atomic_flag* __o) _NOEXCEPT
{ {
return __o->test(); return __o->test();
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_flag_test_explicit(const volatile atomic_flag* __o, memory_order __m) _NOEXCEPT atomic_flag_test_explicit(const volatile atomic_flag* __o, memory_order __m) _NOEXCEPT
{ {
return __o->test(__m); return __o->test(__m);
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_flag_test_explicit(const atomic_flag* __o, memory_order __m) _NOEXCEPT atomic_flag_test_explicit(const atomic_flag* __o, memory_order __m) _NOEXCEPT
{ {
return __o->test(__m); return __o->test(__m);
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_flag_test_and_set(volatile atomic_flag* __o) _NOEXCEPT atomic_flag_test_and_set(volatile atomic_flag* __o) _NOEXCEPT
{ {
return __o->test_and_set(); return __o->test_and_set();
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_flag_test_and_set(atomic_flag* __o) _NOEXCEPT atomic_flag_test_and_set(atomic_flag* __o) _NOEXCEPT
{ {
return __o->test_and_set(); return __o->test_and_set();
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_flag_test_and_set_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT atomic_flag_test_and_set_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT
{ {
return __o->test_and_set(__m); return __o->test_and_set(__m);
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
bool bool
atomic_flag_test_and_set_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT atomic_flag_test_and_set_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT
{ {
return __o->test_and_set(__m); return __o->test_and_set(__m);
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
void void
atomic_flag_clear(volatile atomic_flag* __o) _NOEXCEPT atomic_flag_clear(volatile atomic_flag* __o) _NOEXCEPT
{ {
__o->clear(); __o->clear();
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
void void
atomic_flag_clear(atomic_flag* __o) _NOEXCEPT atomic_flag_clear(atomic_flag* __o) _NOEXCEPT
{ {
__o->clear(); __o->clear();
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
void void
atomic_flag_clear_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT atomic_flag_clear_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT
{ {
__o->clear(__m); __o->clear(__m);
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
void void
atomic_flag_clear_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT atomic_flag_clear_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT
{ {
__o->clear(__m); __o->clear(__m);
} }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
void void
atomic_flag_wait(const volatile atomic_flag* __o, bool __v) _NOEXCEPT atomic_flag_wait(const volatile atomic_flag* __o, bool __v) _NOEXCEPT
{ {
__o->wait(__v); __o->wait(__v);
} }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
void void
atomic_flag_wait(const atomic_flag* __o, bool __v) _NOEXCEPT atomic_flag_wait(const atomic_flag* __o, bool __v) _NOEXCEPT
{ {
__o->wait(__v); __o->wait(__v);
} }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
void void
atomic_flag_wait_explicit(const volatile atomic_flag* __o, atomic_flag_wait_explicit(const volatile atomic_flag* __o,
bool __v, memory_order __m) _NOEXCEPT bool __v, memory_order __m) _NOEXCEPT
{ {
__o->wait(__v, __m); __o->wait(__v, __m);
} }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
void void
atomic_flag_wait_explicit(const atomic_flag* __o, atomic_flag_wait_explicit(const atomic_flag* __o,
bool __v, memory_order __m) _NOEXCEPT bool __v, memory_order __m) _NOEXCEPT
{ {
__o->wait(__v, __m); __o->wait(__v, __m);
} }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
void void
atomic_flag_notify_one(volatile atomic_flag* __o) _NOEXCEPT atomic_flag_notify_one(volatile atomic_flag* __o) _NOEXCEPT
{ {
__o->notify_one(); __o->notify_one();
} }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
void void
atomic_flag_notify_one(atomic_flag* __o) _NOEXCEPT atomic_flag_notify_one(atomic_flag* __o) _NOEXCEPT
{ {
__o->notify_one(); __o->notify_one();
} }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
void void
atomic_flag_notify_all(volatile atomic_flag* __o) _NOEXCEPT atomic_flag_notify_all(volatile atomic_flag* __o) _NOEXCEPT
{ {
__o->notify_all(); __o->notify_all();
} }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_SYNC inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_SYNC
void void
atomic_flag_notify_all(atomic_flag* __o) _NOEXCEPT atomic_flag_notify_all(atomic_flag* __o) _NOEXCEPT
{ {
__o->notify_all(); __o->notify_all();
} }
_LIBCPP_END_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ATOMIC_ATOMIC_FLAG_H #endif // _LIBCPP___ATOMIC_ATOMIC_FLAG_H

libcxx/include/__atomic/atomic_sync.h

Show All 37 Lines
_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 __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); _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> template <class _Atp, class _Fn>
struct __libcpp_atomic_wait_backoff_impl { struct __libcpp_atomic_wait_backoff_impl {
_Atp* __a; _Atp* __a;
_Fn __test_fn; _Fn __test_fn;
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_AVAILABILITY_SYNC
_LIBCPP_INLINE_VISIBILITY bool operator()(chrono::nanoseconds __elapsed) const _LIBCPP_HIDE_FROM_ABI bool operator()(chrono::nanoseconds __elapsed) const
{ {
if(__elapsed > chrono::microseconds(64)) if(__elapsed > chrono::microseconds(64))
{ {
auto const __monitor = std::__libcpp_atomic_monitor(__a); auto const __monitor = std::__libcpp_atomic_monitor(__a);
if(__test_fn()) if(__test_fn())
return true; return true;
std::__libcpp_atomic_wait(__a, __monitor); std::__libcpp_atomic_wait(__a, __monitor);
} }
else if(__elapsed > chrono::microseconds(4)) else if(__elapsed > chrono::microseconds(4))
__libcpp_thread_yield(); __libcpp_thread_yield();
else else
{} // poll {} // poll
return false; return false;
} }
}; };
template <class _Atp, class _Fn> template <class _Atp, class _Fn>
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_AVAILABILITY_SYNC
_LIBCPP_INLINE_VISIBILITY bool __cxx_atomic_wait(_Atp* __a, _Fn && __test_fn) _LIBCPP_HIDE_FROM_ABI bool __cxx_atomic_wait(_Atp* __a, _Fn && __test_fn)
{ {
__libcpp_atomic_wait_backoff_impl<_Atp, typename decay<_Fn>::type> __backoff_fn = {__a, __test_fn}; __libcpp_atomic_wait_backoff_impl<_Atp, typename decay<_Fn>::type> __backoff_fn = {__a, __test_fn};
return std::__libcpp_thread_poll_with_backoff(__test_fn, __backoff_fn); return std::__libcpp_thread_poll_with_backoff(__test_fn, __backoff_fn);
} }
#else // _LIBCPP_HAS_NO_THREADS #else // _LIBCPP_HAS_NO_THREADS
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY void __cxx_atomic_notify_all(__cxx_atomic_impl<_Tp> const volatile*) { } _LIBCPP_HIDE_FROM_ABI void __cxx_atomic_notify_all(__cxx_atomic_impl<_Tp> const volatile*) { }
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY void __cxx_atomic_notify_one(__cxx_atomic_impl<_Tp> const volatile*) { } _LIBCPP_HIDE_FROM_ABI void __cxx_atomic_notify_one(__cxx_atomic_impl<_Tp> const volatile*) { }
template <class _Atp, class _Fn> template <class _Atp, class _Fn>
_LIBCPP_INLINE_VISIBILITY bool __cxx_atomic_wait(_Atp*, _Fn && __test_fn) _LIBCPP_HIDE_FROM_ABI bool __cxx_atomic_wait(_Atp*, _Fn && __test_fn)
{ {
return __libcpp_thread_poll_with_backoff(__test_fn, __spinning_backoff_policy()); return __libcpp_thread_poll_with_backoff(__test_fn, __spinning_backoff_policy());
} }
#endif // _LIBCPP_HAS_NO_THREADS #endif // _LIBCPP_HAS_NO_THREADS
template <typename _Tp> _LIBCPP_INLINE_VISIBILITY template <typename _Tp> _LIBCPP_HIDE_FROM_ABI
bool __cxx_nonatomic_compare_equal(_Tp const& __lhs, _Tp const& __rhs) { bool __cxx_nonatomic_compare_equal(_Tp const& __lhs, _Tp const& __rhs) {
return _VSTD::memcmp(&__lhs, &__rhs, sizeof(_Tp)) == 0; return std::memcmp(&__lhs, &__rhs, sizeof(_Tp)) == 0;
} }
template <class _Atp, class _Tp> template <class _Atp, class _Tp>
struct __cxx_atomic_wait_test_fn_impl { struct __cxx_atomic_wait_test_fn_impl {
_Atp* __a; _Atp* __a;
_Tp __val; _Tp __val;
memory_order __order; memory_order __order;
_LIBCPP_INLINE_VISIBILITY bool operator()() const _LIBCPP_HIDE_FROM_ABI bool operator()() const
{ {
return !std::__cxx_nonatomic_compare_equal(std::__cxx_atomic_load(__a, __order), __val); return !std::__cxx_nonatomic_compare_equal(std::__cxx_atomic_load(__a, __order), __val);
} }
}; };
template <class _Atp, class _Tp> template <class _Atp, class _Tp>
_LIBCPP_AVAILABILITY_SYNC _LIBCPP_AVAILABILITY_SYNC
_LIBCPP_INLINE_VISIBILITY bool __cxx_atomic_wait(_Atp* __a, _Tp const __val, memory_order __order) _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}; __cxx_atomic_wait_test_fn_impl<_Atp, _Tp> __test_fn = {__a, __val, __order};
return std::__cxx_atomic_wait(__a, __test_fn); return std::__cxx_atomic_wait(__a, __test_fn);
} }
_LIBCPP_END_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ATOMIC_ATOMIC_SYNC_H #endif // _LIBCPP___ATOMIC_ATOMIC_SYNC_H

libcxx/include/__atomic/cxx_atomic_impl.h

Show All 23 Lines
_LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_BEGIN_NAMESPACE_STD
#if defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) || \ #if defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) || \
defined(_LIBCPP_ATOMIC_ONLY_USE_BUILTINS) defined(_LIBCPP_ATOMIC_ONLY_USE_BUILTINS)
// [atomics.types.generic]p1 guarantees _Tp is trivially copyable. Because // [atomics.types.generic]p1 guarantees _Tp is trivially copyable. Because
// the default operator= in an object is not volatile, a byte-by-byte copy // the default operator= in an object is not volatile, a byte-by-byte copy
// is required. // is required.
template <typename _Tp, typename _Tv> _LIBCPP_INLINE_VISIBILITY template <typename _Tp, typename _Tv> _LIBCPP_HIDE_FROM_ABI
typename enable_if<is_assignable<_Tp&, _Tv>::value>::type typename enable_if<is_assignable<_Tp&, _Tv>::value>::type
__cxx_atomic_assign_volatile(_Tp& __a_value, _Tv const& __val) { __cxx_atomic_assign_volatile(_Tp& __a_value, _Tv const& __val) {
__a_value = __val; __a_value = __val;
} }
template <typename _Tp, typename _Tv> _LIBCPP_INLINE_VISIBILITY template <typename _Tp, typename _Tv> _LIBCPP_HIDE_FROM_ABI
typename enable_if<is_assignable<_Tp&, _Tv>::value>::type typename enable_if<is_assignable<_Tp&, _Tv>::value>::type
__cxx_atomic_assign_volatile(_Tp volatile& __a_value, _Tv volatile const& __val) { __cxx_atomic_assign_volatile(_Tp volatile& __a_value, _Tv volatile const& __val) {
volatile char* __to = reinterpret_cast<volatile char*>(&__a_value); volatile char* __to = reinterpret_cast<volatile char*>(&__a_value);
volatile char* __end = __to + sizeof(_Tp); volatile char* __end = __to + sizeof(_Tp);
volatile const char* __from = reinterpret_cast<volatile const char*>(&__val); volatile const char* __from = reinterpret_cast<volatile const char*>(&__val);
while (__to != __end) while (__to != __end)
*__to++ = *__from++; *__to++ = *__from++;
} }
#endif #endif
#if defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) #if defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)
template <typename _Tp> template <typename _Tp>
struct __cxx_atomic_base_impl { struct __cxx_atomic_base_impl {
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
#ifndef _LIBCPP_CXX03_LANG #ifndef _LIBCPP_CXX03_LANG
__cxx_atomic_base_impl() _NOEXCEPT = default; __cxx_atomic_base_impl() _NOEXCEPT = default;
#else #else
__cxx_atomic_base_impl() _NOEXCEPT : __a_value() {} __cxx_atomic_base_impl() _NOEXCEPT : __a_value() {}
#endif // _LIBCPP_CXX03_LANG #endif // _LIBCPP_CXX03_LANG
_LIBCPP_CONSTEXPR explicit __cxx_atomic_base_impl(_Tp value) _NOEXCEPT _LIBCPP_CONSTEXPR explicit __cxx_atomic_base_impl(_Tp value) _NOEXCEPT
: __a_value(value) {} : __a_value(value) {}
_Tp __a_value; _Tp __a_value;
}; };
_LIBCPP_INLINE_VISIBILITY inline _LIBCPP_CONSTEXPR int __to_gcc_order(memory_order __order) { _LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR int __to_gcc_order(memory_order __order) {
// Avoid switch statement to make this a constexpr. // Avoid switch statement to make this a constexpr.
return __order == memory_order_relaxed ? __ATOMIC_RELAXED: return __order == memory_order_relaxed ? __ATOMIC_RELAXED:
(__order == memory_order_acquire ? __ATOMIC_ACQUIRE: (__order == memory_order_acquire ? __ATOMIC_ACQUIRE:
(__order == memory_order_release ? __ATOMIC_RELEASE: (__order == memory_order_release ? __ATOMIC_RELEASE:
(__order == memory_order_seq_cst ? __ATOMIC_SEQ_CST: (__order == memory_order_seq_cst ? __ATOMIC_SEQ_CST:
(__order == memory_order_acq_rel ? __ATOMIC_ACQ_REL: (__order == memory_order_acq_rel ? __ATOMIC_ACQ_REL:
__ATOMIC_CONSUME)))); __ATOMIC_CONSUME))));
} }
_LIBCPP_INLINE_VISIBILITY inline _LIBCPP_CONSTEXPR int __to_gcc_failure_order(memory_order __order) { _LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR int __to_gcc_failure_order(memory_order __order) {
// Avoid switch statement to make this a constexpr. // Avoid switch statement to make this a constexpr.
return __order == memory_order_relaxed ? __ATOMIC_RELAXED: return __order == memory_order_relaxed ? __ATOMIC_RELAXED:
(__order == memory_order_acquire ? __ATOMIC_ACQUIRE: (__order == memory_order_acquire ? __ATOMIC_ACQUIRE:
(__order == memory_order_release ? __ATOMIC_RELAXED: (__order == memory_order_release ? __ATOMIC_RELAXED:
(__order == memory_order_seq_cst ? __ATOMIC_SEQ_CST: (__order == memory_order_seq_cst ? __ATOMIC_SEQ_CST:
(__order == memory_order_acq_rel ? __ATOMIC_ACQUIRE: (__order == memory_order_acq_rel ? __ATOMIC_ACQUIRE:
__ATOMIC_CONSUME)))); __ATOMIC_CONSUME))));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_init(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __val) { void __cxx_atomic_init(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __val) {
__cxx_atomic_assign_volatile(__a->__a_value, __val); __cxx_atomic_assign_volatile(__a->__a_value, __val);
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp>* __a, _Tp __val) { void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp>* __a, _Tp __val) {
__a->__a_value = __val; __a->__a_value = __val;
} }
_LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI inline
void __cxx_atomic_thread_fence(memory_order __order) { void __cxx_atomic_thread_fence(memory_order __order) {
__atomic_thread_fence(__to_gcc_order(__order)); __atomic_thread_fence(__to_gcc_order(__order));
} }
_LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI inline
void __cxx_atomic_signal_fence(memory_order __order) { void __cxx_atomic_signal_fence(memory_order __order) {
__atomic_signal_fence(__to_gcc_order(__order)); __atomic_signal_fence(__to_gcc_order(__order));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_store(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __val, void __cxx_atomic_store(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __val,
memory_order __order) { memory_order __order) {
__atomic_store(&__a->__a_value, &__val, __atomic_store(&__a->__a_value, &__val,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp>* __a, _Tp __val, void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp>* __a, _Tp __val,
memory_order __order) { memory_order __order) {
__atomic_store(&__a->__a_value, &__val, __atomic_store(&__a->__a_value, &__val,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_load(const volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __cxx_atomic_load(const volatile __cxx_atomic_base_impl<_Tp>* __a,
memory_order __order) { memory_order __order) {
_Tp __ret; _Tp __ret;
__atomic_load(&__a->__a_value, &__ret, __atomic_load(&__a->__a_value, &__ret,
__to_gcc_order(__order)); __to_gcc_order(__order));
return __ret; return __ret;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_load(const __cxx_atomic_base_impl<_Tp>* __a, memory_order __order) { _Tp __cxx_atomic_load(const __cxx_atomic_base_impl<_Tp>* __a, memory_order __order) {
_Tp __ret; _Tp __ret;
__atomic_load(&__a->__a_value, &__ret, __atomic_load(&__a->__a_value, &__ret,
__to_gcc_order(__order)); __to_gcc_order(__order));
return __ret; return __ret;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_exchange(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __cxx_atomic_exchange(volatile __cxx_atomic_base_impl<_Tp>* __a,
_Tp __value, memory_order __order) { _Tp __value, memory_order __order) {
_Tp __ret; _Tp __ret;
__atomic_exchange(&__a->__a_value, &__value, &__ret, __atomic_exchange(&__a->__a_value, &__value, &__ret,
__to_gcc_order(__order)); __to_gcc_order(__order));
return __ret; return __ret;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp>* __a, _Tp __value, _Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp>* __a, _Tp __value,
memory_order __order) { memory_order __order) {
_Tp __ret; _Tp __ret;
__atomic_exchange(&__a->__a_value, &__value, &__ret, __atomic_exchange(&__a->__a_value, &__value, &__ret,
__to_gcc_order(__order)); __to_gcc_order(__order));
return __ret; return __ret;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool __cxx_atomic_compare_exchange_strong( bool __cxx_atomic_compare_exchange_strong(
volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value,
memory_order __success, memory_order __failure) { memory_order __success, memory_order __failure) {
return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, return __atomic_compare_exchange(&__a->__a_value, __expected, &__value,
false, false,
__to_gcc_order(__success), __to_gcc_order(__success),
__to_gcc_failure_order(__failure)); __to_gcc_failure_order(__failure));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool __cxx_atomic_compare_exchange_strong( bool __cxx_atomic_compare_exchange_strong(
__cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, memory_order __success, __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, memory_order __success,
memory_order __failure) { memory_order __failure) {
return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, return __atomic_compare_exchange(&__a->__a_value, __expected, &__value,
false, false,
__to_gcc_order(__success), __to_gcc_order(__success),
__to_gcc_failure_order(__failure)); __to_gcc_failure_order(__failure));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool __cxx_atomic_compare_exchange_weak( bool __cxx_atomic_compare_exchange_weak(
volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value,
memory_order __success, memory_order __failure) { memory_order __success, memory_order __failure) {
return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, return __atomic_compare_exchange(&__a->__a_value, __expected, &__value,
true, true,
__to_gcc_order(__success), __to_gcc_order(__success),
__to_gcc_failure_order(__failure)); __to_gcc_failure_order(__failure));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool __cxx_atomic_compare_exchange_weak( bool __cxx_atomic_compare_exchange_weak(
__cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, memory_order __success, __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, memory_order __success,
memory_order __failure) { memory_order __failure) {
return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, return __atomic_compare_exchange(&__a->__a_value, __expected, &__value,
true, true,
__to_gcc_order(__success), __to_gcc_order(__success),
__to_gcc_failure_order(__failure)); __to_gcc_failure_order(__failure));
} }
template <typename _Tp> template <typename _Tp>
struct __skip_amt { enum {value = 1}; }; struct __skip_amt { enum {value = 1}; };
template <typename _Tp> template <typename _Tp>
struct __skip_amt<_Tp*> { enum {value = sizeof(_Tp)}; }; struct __skip_amt<_Tp*> { enum {value = sizeof(_Tp)}; };
// FIXME: Haven't figured out what the spec says about using arrays with // FIXME: Haven't figured out what the spec says about using arrays with
// atomic_fetch_add. Force a failure rather than creating bad behavior. // atomic_fetch_add. Force a failure rather than creating bad behavior.
template <typename _Tp> template <typename _Tp>
struct __skip_amt<_Tp[]> { }; struct __skip_amt<_Tp[]> { };
template <typename _Tp, int n> template <typename _Tp, int n>
struct __skip_amt<_Tp[n]> { }; struct __skip_amt<_Tp[n]> { };
template <typename _Tp, typename _Td> template <typename _Tp, typename _Td>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_add(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_add(volatile __cxx_atomic_base_impl<_Tp>* __a,
_Td __delta, memory_order __order) { _Td __delta, memory_order __order) {
return __atomic_fetch_add(&__a->__a_value, __delta * __skip_amt<_Tp>::value, return __atomic_fetch_add(&__a->__a_value, __delta * __skip_amt<_Tp>::value,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
template <typename _Tp, typename _Td> template <typename _Tp, typename _Td>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta, _Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta,
memory_order __order) { memory_order __order) {
return __atomic_fetch_add(&__a->__a_value, __delta * __skip_amt<_Tp>::value, return __atomic_fetch_add(&__a->__a_value, __delta * __skip_amt<_Tp>::value,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
template <typename _Tp, typename _Td> template <typename _Tp, typename _Td>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_sub(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_sub(volatile __cxx_atomic_base_impl<_Tp>* __a,
_Td __delta, memory_order __order) { _Td __delta, memory_order __order) {
return __atomic_fetch_sub(&__a->__a_value, __delta * __skip_amt<_Tp>::value, return __atomic_fetch_sub(&__a->__a_value, __delta * __skip_amt<_Tp>::value,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
template <typename _Tp, typename _Td> template <typename _Tp, typename _Td>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta, _Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta,
memory_order __order) { memory_order __order) {
return __atomic_fetch_sub(&__a->__a_value, __delta * __skip_amt<_Tp>::value, return __atomic_fetch_sub(&__a->__a_value, __delta * __skip_amt<_Tp>::value,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_and(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_and(volatile __cxx_atomic_base_impl<_Tp>* __a,
_Tp __pattern, memory_order __order) { _Tp __pattern, memory_order __order) {
return __atomic_fetch_and(&__a->__a_value, __pattern, return __atomic_fetch_and(&__a->__a_value, __pattern,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp>* __a,
_Tp __pattern, memory_order __order) { _Tp __pattern, memory_order __order) {
return __atomic_fetch_and(&__a->__a_value, __pattern, return __atomic_fetch_and(&__a->__a_value, __pattern,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_or(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_or(volatile __cxx_atomic_base_impl<_Tp>* __a,
_Tp __pattern, memory_order __order) { _Tp __pattern, memory_order __order) {
return __atomic_fetch_or(&__a->__a_value, __pattern, return __atomic_fetch_or(&__a->__a_value, __pattern,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp>* __a, _Tp __pattern, _Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp>* __a, _Tp __pattern,
memory_order __order) { memory_order __order) {
return __atomic_fetch_or(&__a->__a_value, __pattern, return __atomic_fetch_or(&__a->__a_value, __pattern,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_xor(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_xor(volatile __cxx_atomic_base_impl<_Tp>* __a,
_Tp __pattern, memory_order __order) { _Tp __pattern, memory_order __order) {
return __atomic_fetch_xor(&__a->__a_value, __pattern, return __atomic_fetch_xor(&__a->__a_value, __pattern,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp>* __a, _Tp __pattern, _Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp>* __a, _Tp __pattern,
memory_order __order) { memory_order __order) {
return __atomic_fetch_xor(&__a->__a_value, __pattern, return __atomic_fetch_xor(&__a->__a_value, __pattern,
__to_gcc_order(__order)); __to_gcc_order(__order));
} }
#define __cxx_atomic_is_lock_free(__s) __atomic_is_lock_free(__s, 0) #define __cxx_atomic_is_lock_free(__s) __atomic_is_lock_free(__s, 0)
#elif defined(_LIBCPP_HAS_C_ATOMIC_IMP) #elif defined(_LIBCPP_HAS_C_ATOMIC_IMP)
template <typename _Tp> template <typename _Tp>
struct __cxx_atomic_base_impl { struct __cxx_atomic_base_impl {
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
#ifndef _LIBCPP_CXX03_LANG #ifndef _LIBCPP_CXX03_LANG
__cxx_atomic_base_impl() _NOEXCEPT = default; __cxx_atomic_base_impl() _NOEXCEPT = default;
#else #else
__cxx_atomic_base_impl() _NOEXCEPT : __a_value() {} __cxx_atomic_base_impl() _NOEXCEPT : __a_value() {}
#endif // _LIBCPP_CXX03_LANG #endif // _LIBCPP_CXX03_LANG
_LIBCPP_CONSTEXPR explicit __cxx_atomic_base_impl(_Tp __value) _NOEXCEPT _LIBCPP_CONSTEXPR explicit __cxx_atomic_base_impl(_Tp __value) _NOEXCEPT
: __a_value(__value) {} : __a_value(__value) {}
_LIBCPP_DISABLE_EXTENSION_WARNING _Atomic(_Tp) __a_value; _LIBCPP_DISABLE_EXTENSION_WARNING _Atomic(_Tp) __a_value;
}; };
#define __cxx_atomic_is_lock_free(__s) __c11_atomic_is_lock_free(__s) #define __cxx_atomic_is_lock_free(__s) __c11_atomic_is_lock_free(__s)
_LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI inline
void __cxx_atomic_thread_fence(memory_order __order) _NOEXCEPT { void __cxx_atomic_thread_fence(memory_order __order) _NOEXCEPT {
__c11_atomic_thread_fence(static_cast<__memory_order_underlying_t>(__order)); __c11_atomic_thread_fence(static_cast<__memory_order_underlying_t>(__order));
} }
_LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI inline
void __cxx_atomic_signal_fence(memory_order __order) _NOEXCEPT { void __cxx_atomic_signal_fence(memory_order __order) _NOEXCEPT {
__c11_atomic_signal_fence(static_cast<__memory_order_underlying_t>(__order)); __c11_atomic_signal_fence(static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __val) _NOEXCEPT { void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __val) _NOEXCEPT {
__c11_atomic_init(&__a->__a_value, __val); __c11_atomic_init(&__a->__a_value, __val);
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp> * __a, _Tp __val) _NOEXCEPT { void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp> * __a, _Tp __val) _NOEXCEPT {
__c11_atomic_init(&__a->__a_value, __val); __c11_atomic_init(&__a->__a_value, __val);
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __val, memory_order __order) _NOEXCEPT { void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __val, memory_order __order) _NOEXCEPT {
__c11_atomic_store(&__a->__a_value, __val, static_cast<__memory_order_underlying_t>(__order)); __c11_atomic_store(&__a->__a_value, __val, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp> * __a, _Tp __val, memory_order __order) _NOEXCEPT { void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp> * __a, _Tp __val, memory_order __order) _NOEXCEPT {
__c11_atomic_store(&__a->__a_value, __val, static_cast<__memory_order_underlying_t>(__order)); __c11_atomic_store(&__a->__a_value, __val, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_load(__cxx_atomic_base_impl<_Tp> const volatile* __a, memory_order __order) _NOEXCEPT { _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)>*; using __ptr_type = __remove_const_t<decltype(__a->__a_value)>*;
return __c11_atomic_load(const_cast<__ptr_type>(&__a->__a_value), static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_load(const_cast<__ptr_type>(&__a->__a_value), static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_load(__cxx_atomic_base_impl<_Tp> const* __a, memory_order __order) _NOEXCEPT { _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)>*; using __ptr_type = __remove_const_t<decltype(__a->__a_value)>*;
return __c11_atomic_load(const_cast<__ptr_type>(&__a->__a_value), static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_load(const_cast<__ptr_type>(&__a->__a_value), static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __value, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __value, memory_order __order) _NOEXCEPT {
return __c11_atomic_exchange(&__a->__a_value, __value, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_exchange(&__a->__a_value, __value, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp> * __a, _Tp __value, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp> * __a, _Tp __value, memory_order __order) _NOEXCEPT {
return __c11_atomic_exchange(&__a->__a_value, __value, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_exchange(&__a->__a_value, __value, static_cast<__memory_order_underlying_t>(__order));
} }
_LIBCPP_INLINE_VISIBILITY inline _LIBCPP_CONSTEXPR memory_order __to_failure_order(memory_order __order) { _LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR memory_order __to_failure_order(memory_order __order) {
// Avoid switch statement to make this a constexpr. // Avoid switch statement to make this a constexpr.
return __order == memory_order_release ? memory_order_relaxed: return __order == memory_order_release ? memory_order_relaxed:
(__order == memory_order_acq_rel ? memory_order_acquire: (__order == memory_order_acq_rel ? memory_order_acquire:
__order); __order);
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _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 { 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(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__to_failure_order(__failure))); return __c11_atomic_compare_exchange_strong(&__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> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _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 { 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(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__to_failure_order(__failure))); return __c11_atomic_compare_exchange_strong(&__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> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _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 { 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(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__to_failure_order(__failure))); return __c11_atomic_compare_exchange_weak(&__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> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _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 { 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(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__to_failure_order(__failure))); return __c11_atomic_compare_exchange_weak(&__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> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __delta, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __delta, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp> * __a, _Tp __delta, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp> * __a, _Tp __delta, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp*> volatile* __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT { _Tp* __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp*> volatile* __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp*> * __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT { _Tp* __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp*> * __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __delta, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __delta, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp> * __a, _Tp __delta, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp> * __a, _Tp __delta, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp*> volatile* __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT { _Tp* __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp*> volatile* __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp*> * __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT { _Tp* __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp*> * __a, ptrdiff_t __delta, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_and(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_and(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_and(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_and(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_or(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_or(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_or(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_or(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_xor(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_xor(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
} }
template<class _Tp> template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) _NOEXCEPT { _Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) _NOEXCEPT {
return __c11_atomic_fetch_xor(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); return __c11_atomic_fetch_xor(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
} }
#endif // _LIBCPP_HAS_GCC_ATOMIC_IMP, _LIBCPP_HAS_C_ATOMIC_IMP #endif // _LIBCPP_HAS_GCC_ATOMIC_IMP, _LIBCPP_HAS_C_ATOMIC_IMP
#ifdef _LIBCPP_ATOMIC_ONLY_USE_BUILTINS #ifdef _LIBCPP_ATOMIC_ONLY_USE_BUILTINS
template<typename _Tp> template<typename _Tp>
struct __cxx_atomic_lock_impl { struct __cxx_atomic_lock_impl {
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
__cxx_atomic_lock_impl() _NOEXCEPT __cxx_atomic_lock_impl() _NOEXCEPT
: __a_value(), __a_lock(0) {} : __a_value(), __a_lock(0) {}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR explicit _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR explicit
__cxx_atomic_lock_impl(_Tp value) _NOEXCEPT __cxx_atomic_lock_impl(_Tp value) _NOEXCEPT
: __a_value(value), __a_lock(0) {} : __a_value(value), __a_lock(0) {}
_Tp __a_value; _Tp __a_value;
mutable __cxx_atomic_base_impl<_LIBCPP_ATOMIC_FLAG_TYPE> __a_lock; mutable __cxx_atomic_base_impl<_LIBCPP_ATOMIC_FLAG_TYPE> __a_lock;
_LIBCPP_INLINE_VISIBILITY void __lock() const volatile { _LIBCPP_HIDE_FROM_ABI void __lock() const volatile {
while(1 == __cxx_atomic_exchange(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(true), memory_order_acquire)) while(1 == __cxx_atomic_exchange(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(true), memory_order_acquire))
/*spin*/; /*spin*/;
} }
_LIBCPP_INLINE_VISIBILITY void __lock() const { _LIBCPP_HIDE_FROM_ABI void __lock() const {
while(1 == __cxx_atomic_exchange(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(true), memory_order_acquire)) while(1 == __cxx_atomic_exchange(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(true), memory_order_acquire))
/*spin*/; /*spin*/;
} }
_LIBCPP_INLINE_VISIBILITY void __unlock() const volatile { _LIBCPP_HIDE_FROM_ABI void __unlock() const volatile {
__cxx_atomic_store(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(false), memory_order_release); __cxx_atomic_store(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(false), memory_order_release);
} }
_LIBCPP_INLINE_VISIBILITY void __unlock() const { _LIBCPP_HIDE_FROM_ABI void __unlock() const {
__cxx_atomic_store(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(false), memory_order_release); __cxx_atomic_store(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(false), memory_order_release);
} }
_LIBCPP_INLINE_VISIBILITY _Tp __read() const volatile { _LIBCPP_HIDE_FROM_ABI _Tp __read() const volatile {
__lock(); __lock();
_Tp __old; _Tp __old;
__cxx_atomic_assign_volatile(__old, __a_value); __cxx_atomic_assign_volatile(__old, __a_value);
__unlock(); __unlock();
return __old; return __old;
} }
_LIBCPP_INLINE_VISIBILITY _Tp __read() const { _LIBCPP_HIDE_FROM_ABI _Tp __read() const {
__lock(); __lock();
_Tp __old = __a_value; _Tp __old = __a_value;
__unlock(); __unlock();
return __old; return __old;
} }
}; };
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_init(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __val) { void __cxx_atomic_init(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __val) {
__cxx_atomic_assign_volatile(__a->__a_value, __val); __cxx_atomic_assign_volatile(__a->__a_value, __val);
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_init(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __val) { void __cxx_atomic_init(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __val) {
__a->__a_value = __val; __a->__a_value = __val;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_store(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __val, memory_order) { void __cxx_atomic_store(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __val, memory_order) {
__a->__lock(); __a->__lock();
__cxx_atomic_assign_volatile(__a->__a_value, __val); __cxx_atomic_assign_volatile(__a->__a_value, __val);
__a->__unlock(); __a->__unlock();
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
void __cxx_atomic_store(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __val, memory_order) { void __cxx_atomic_store(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __val, memory_order) {
__a->__lock(); __a->__lock();
__a->__a_value = __val; __a->__a_value = __val;
__a->__unlock(); __a->__unlock();
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_load(const volatile __cxx_atomic_lock_impl<_Tp>* __a, memory_order) { _Tp __cxx_atomic_load(const volatile __cxx_atomic_lock_impl<_Tp>* __a, memory_order) {
return __a->__read(); return __a->__read();
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_load(const __cxx_atomic_lock_impl<_Tp>* __a, memory_order) { _Tp __cxx_atomic_load(const __cxx_atomic_lock_impl<_Tp>* __a, memory_order) {
return __a->__read(); return __a->__read();
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_exchange(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __value, memory_order) { _Tp __cxx_atomic_exchange(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __value, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old; _Tp __old;
__cxx_atomic_assign_volatile(__old, __a->__a_value); __cxx_atomic_assign_volatile(__old, __a->__a_value);
__cxx_atomic_assign_volatile(__a->__a_value, __value); __cxx_atomic_assign_volatile(__a->__a_value, __value);
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_exchange(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __value, memory_order) { _Tp __cxx_atomic_exchange(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __value, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old = __a->__a_value; _Tp __old = __a->__a_value;
__a->__a_value = __value; __a->__a_value = __value;
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool __cxx_atomic_compare_exchange_strong(volatile __cxx_atomic_lock_impl<_Tp>* __a, bool __cxx_atomic_compare_exchange_strong(volatile __cxx_atomic_lock_impl<_Tp>* __a,
_Tp* __expected, _Tp __value, memory_order, memory_order) { _Tp* __expected, _Tp __value, memory_order, memory_order) {
_Tp __temp; _Tp __temp;
__a->__lock(); __a->__lock();
__cxx_atomic_assign_volatile(__temp, __a->__a_value); __cxx_atomic_assign_volatile(__temp, __a->__a_value);
bool __ret = (_VSTD::memcmp(&__temp, __expected, sizeof(_Tp)) == 0); bool __ret = (std::memcmp(&__temp, __expected, sizeof(_Tp)) == 0);
if(__ret) if(__ret)
__cxx_atomic_assign_volatile(__a->__a_value, __value); __cxx_atomic_assign_volatile(__a->__a_value, __value);
else else
__cxx_atomic_assign_volatile(*__expected, __a->__a_value); __cxx_atomic_assign_volatile(*__expected, __a->__a_value);
__a->__unlock(); __a->__unlock();
return __ret; return __ret;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool __cxx_atomic_compare_exchange_strong(__cxx_atomic_lock_impl<_Tp>* __a, bool __cxx_atomic_compare_exchange_strong(__cxx_atomic_lock_impl<_Tp>* __a,
_Tp* __expected, _Tp __value, memory_order, memory_order) { _Tp* __expected, _Tp __value, memory_order, memory_order) {
__a->__lock(); __a->__lock();
bool __ret = (_VSTD::memcmp(&__a->__a_value, __expected, sizeof(_Tp)) == 0); bool __ret = (std::memcmp(&__a->__a_value, __expected, sizeof(_Tp)) == 0);
if(__ret) if(__ret)
_VSTD::memcpy(&__a->__a_value, &__value, sizeof(_Tp)); std::memcpy(&__a->__a_value, &__value, sizeof(_Tp));
else else
_VSTD::memcpy(__expected, &__a->__a_value, sizeof(_Tp)); std::memcpy(__expected, &__a->__a_value, sizeof(_Tp));
__a->__unlock(); __a->__unlock();
return __ret; return __ret;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool __cxx_atomic_compare_exchange_weak(volatile __cxx_atomic_lock_impl<_Tp>* __a, bool __cxx_atomic_compare_exchange_weak(volatile __cxx_atomic_lock_impl<_Tp>* __a,
_Tp* __expected, _Tp __value, memory_order, memory_order) { _Tp* __expected, _Tp __value, memory_order, memory_order) {
_Tp __temp; _Tp __temp;
__a->__lock(); __a->__lock();
__cxx_atomic_assign_volatile(__temp, __a->__a_value); __cxx_atomic_assign_volatile(__temp, __a->__a_value);
bool __ret = (_VSTD::memcmp(&__temp, __expected, sizeof(_Tp)) == 0); bool __ret = (std::memcmp(&__temp, __expected, sizeof(_Tp)) == 0);
if(__ret) if(__ret)
__cxx_atomic_assign_volatile(__a->__a_value, __value); __cxx_atomic_assign_volatile(__a->__a_value, __value);
else else
__cxx_atomic_assign_volatile(*__expected, __a->__a_value); __cxx_atomic_assign_volatile(*__expected, __a->__a_value);
__a->__unlock(); __a->__unlock();
return __ret; return __ret;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
bool __cxx_atomic_compare_exchange_weak(__cxx_atomic_lock_impl<_Tp>* __a, bool __cxx_atomic_compare_exchange_weak(__cxx_atomic_lock_impl<_Tp>* __a,
_Tp* __expected, _Tp __value, memory_order, memory_order) { _Tp* __expected, _Tp __value, memory_order, memory_order) {
__a->__lock(); __a->__lock();
bool __ret = (_VSTD::memcmp(&__a->__a_value, __expected, sizeof(_Tp)) == 0); bool __ret = (std::memcmp(&__a->__a_value, __expected, sizeof(_Tp)) == 0);
if(__ret) if(__ret)
_VSTD::memcpy(&__a->__a_value, &__value, sizeof(_Tp)); std::memcpy(&__a->__a_value, &__value, sizeof(_Tp));
else else
_VSTD::memcpy(__expected, &__a->__a_value, sizeof(_Tp)); std::memcpy(__expected, &__a->__a_value, sizeof(_Tp));
__a->__unlock(); __a->__unlock();
return __ret; return __ret;
} }
template <typename _Tp, typename _Td> template <typename _Tp, typename _Td>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_add(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_add(volatile __cxx_atomic_lock_impl<_Tp>* __a,
_Td __delta, memory_order) { _Td __delta, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old; _Tp __old;
__cxx_atomic_assign_volatile(__old, __a->__a_value); __cxx_atomic_assign_volatile(__old, __a->__a_value);
__cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old + __delta)); __cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old + __delta));
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp, typename _Td> template <typename _Tp, typename _Td>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_add(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_add(__cxx_atomic_lock_impl<_Tp>* __a,
_Td __delta, memory_order) { _Td __delta, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old = __a->__a_value; _Tp __old = __a->__a_value;
__a->__a_value += __delta; __a->__a_value += __delta;
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp, typename _Td> template <typename _Tp, typename _Td>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* __cxx_atomic_fetch_add(volatile __cxx_atomic_lock_impl<_Tp*>* __a, _Tp* __cxx_atomic_fetch_add(volatile __cxx_atomic_lock_impl<_Tp*>* __a,
ptrdiff_t __delta, memory_order) { ptrdiff_t __delta, memory_order) {
__a->__lock(); __a->__lock();
_Tp* __old; _Tp* __old;
__cxx_atomic_assign_volatile(__old, __a->__a_value); __cxx_atomic_assign_volatile(__old, __a->__a_value);
__cxx_atomic_assign_volatile(__a->__a_value, __old + __delta); __cxx_atomic_assign_volatile(__a->__a_value, __old + __delta);
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp, typename _Td> template <typename _Tp, typename _Td>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp* __cxx_atomic_fetch_add(__cxx_atomic_lock_impl<_Tp*>* __a, _Tp* __cxx_atomic_fetch_add(__cxx_atomic_lock_impl<_Tp*>* __a,
ptrdiff_t __delta, memory_order) { ptrdiff_t __delta, memory_order) {
__a->__lock(); __a->__lock();
_Tp* __old = __a->__a_value; _Tp* __old = __a->__a_value;
__a->__a_value += __delta; __a->__a_value += __delta;
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp, typename _Td> template <typename _Tp, typename _Td>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_sub(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_sub(volatile __cxx_atomic_lock_impl<_Tp>* __a,
_Td __delta, memory_order) { _Td __delta, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old; _Tp __old;
__cxx_atomic_assign_volatile(__old, __a->__a_value); __cxx_atomic_assign_volatile(__old, __a->__a_value);
__cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old - __delta)); __cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old - __delta));
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp, typename _Td> template <typename _Tp, typename _Td>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_sub(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_sub(__cxx_atomic_lock_impl<_Tp>* __a,
_Td __delta, memory_order) { _Td __delta, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old = __a->__a_value; _Tp __old = __a->__a_value;
__a->__a_value -= __delta; __a->__a_value -= __delta;
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_and(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_and(volatile __cxx_atomic_lock_impl<_Tp>* __a,
_Tp __pattern, memory_order) { _Tp __pattern, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old; _Tp __old;
__cxx_atomic_assign_volatile(__old, __a->__a_value); __cxx_atomic_assign_volatile(__old, __a->__a_value);
__cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old & __pattern)); __cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old & __pattern));
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_and(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_and(__cxx_atomic_lock_impl<_Tp>* __a,
_Tp __pattern, memory_order) { _Tp __pattern, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old = __a->__a_value; _Tp __old = __a->__a_value;
__a->__a_value &= __pattern; __a->__a_value &= __pattern;
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_or(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_or(volatile __cxx_atomic_lock_impl<_Tp>* __a,
_Tp __pattern, memory_order) { _Tp __pattern, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old; _Tp __old;
__cxx_atomic_assign_volatile(__old, __a->__a_value); __cxx_atomic_assign_volatile(__old, __a->__a_value);
__cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old | __pattern)); __cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old | __pattern));
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_or(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_or(__cxx_atomic_lock_impl<_Tp>* __a,
_Tp __pattern, memory_order) { _Tp __pattern, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old = __a->__a_value; _Tp __old = __a->__a_value;
__a->__a_value |= __pattern; __a->__a_value |= __pattern;
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_xor(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_xor(volatile __cxx_atomic_lock_impl<_Tp>* __a,
_Tp __pattern, memory_order) { _Tp __pattern, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old; _Tp __old;
__cxx_atomic_assign_volatile(__old, __a->__a_value); __cxx_atomic_assign_volatile(__old, __a->__a_value);
__cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old ^ __pattern)); __cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old ^ __pattern));
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp> template <typename _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp __cxx_atomic_fetch_xor(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __cxx_atomic_fetch_xor(__cxx_atomic_lock_impl<_Tp>* __a,
_Tp __pattern, memory_order) { _Tp __pattern, memory_order) {
__a->__lock(); __a->__lock();
_Tp __old = __a->__a_value; _Tp __old = __a->__a_value;
__a->__a_value ^= __pattern; __a->__a_value ^= __pattern;
__a->__unlock(); __a->__unlock();
return __old; return __old;
} }
template <typename _Tp, template <typename _Tp,
typename _Base = typename conditional<__libcpp_is_always_lock_free<_Tp>::__value, typename _Base = typename conditional<__libcpp_is_always_lock_free<_Tp>::__value,
__cxx_atomic_base_impl<_Tp>, __cxx_atomic_base_impl<_Tp>,
__cxx_atomic_lock_impl<_Tp> >::type> __cxx_atomic_lock_impl<_Tp> >::type>
#else #else
template <typename _Tp, template <typename _Tp,
typename _Base = __cxx_atomic_base_impl<_Tp> > typename _Base = __cxx_atomic_base_impl<_Tp> >
#endif //_LIBCPP_ATOMIC_ONLY_USE_BUILTINS #endif //_LIBCPP_ATOMIC_ONLY_USE_BUILTINS
struct __cxx_atomic_impl : public _Base { struct __cxx_atomic_impl : public _Base {
static_assert(is_trivially_copyable<_Tp>::value, static_assert(is_trivially_copyable<_Tp>::value,
"std::atomic<T> requires that 'T' be a trivially copyable type"); "std::atomic<T> requires that 'T' be a trivially copyable type");
_LIBCPP_INLINE_VISIBILITY __cxx_atomic_impl() _NOEXCEPT = default; _LIBCPP_HIDE_FROM_ABI __cxx_atomic_impl() _NOEXCEPT = default;
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR explicit __cxx_atomic_impl(_Tp __value) _NOEXCEPT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR explicit __cxx_atomic_impl(_Tp __value) _NOEXCEPT
: _Base(__value) {} : _Base(__value) {}
}; };
_LIBCPP_END_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ATOMIC_CXX_ATOMIC_IMPL_H #endif // _LIBCPP___ATOMIC_CXX_ATOMIC_IMPL_H

libcxx/include/__atomic/fence.h

Show All 13 Lines
#include <__config> #include <__config>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header # pragma GCC system_header
#endif #endif
_LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_BEGIN_NAMESPACE_STD
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
void void
atomic_thread_fence(memory_order __m) _NOEXCEPT atomic_thread_fence(memory_order __m) _NOEXCEPT
{ {
__cxx_atomic_thread_fence(__m); __cxx_atomic_thread_fence(__m);
} }
inline _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_HIDE_FROM_ABI
void void
atomic_signal_fence(memory_order __m) _NOEXCEPT atomic_signal_fence(memory_order __m) _NOEXCEPT
{ {
__cxx_atomic_signal_fence(__m); __cxx_atomic_signal_fence(__m);
} }
_LIBCPP_END_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ATOMIC_FENCE_H #endif // _LIBCPP___ATOMIC_FENCE_H

libcxx/include/__atomic/kill_dependency.h

Show All 12 Lines
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header # pragma GCC system_header
#endif #endif
_LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_BEGIN_NAMESPACE_STD
template <class _Tp> template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI
_Tp kill_dependency(_Tp __y) _NOEXCEPT _Tp kill_dependency(_Tp __y) _NOEXCEPT
{ {
return __y; return __y;
} }
_LIBCPP_END_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ATOMIC_KILL_DEPENDENCY_H #endif // _LIBCPP___ATOMIC_KILL_DEPENDENCY_H