| // -*- C++ -*- |
| //===--------------------------- atomic -----------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP_ATOMIC |
| #define _LIBCPP_ATOMIC |
| |
| /* |
| atomic synopsis |
| |
| namespace std |
| { |
| |
| // feature test macro |
| |
| #define __cpp_lib_atomic_is_always_lock_free // as specified by SG10 |
| |
| // order and consistency |
| |
| typedef enum memory_order |
| { |
| memory_order_relaxed, |
| memory_order_consume, // load-consume |
| memory_order_acquire, // load-acquire |
| memory_order_release, // store-release |
| memory_order_acq_rel, // store-release load-acquire |
| memory_order_seq_cst // store-release load-acquire |
| } memory_order; |
| |
| template <class T> T kill_dependency(T y) noexcept; |
| |
| // lock-free property |
| |
| #define ATOMIC_BOOL_LOCK_FREE unspecified |
| #define ATOMIC_CHAR_LOCK_FREE unspecified |
| #define ATOMIC_CHAR16_T_LOCK_FREE unspecified |
| #define ATOMIC_CHAR32_T_LOCK_FREE unspecified |
| #define ATOMIC_WCHAR_T_LOCK_FREE unspecified |
| #define ATOMIC_SHORT_LOCK_FREE unspecified |
| #define ATOMIC_INT_LOCK_FREE unspecified |
| #define ATOMIC_LONG_LOCK_FREE unspecified |
| #define ATOMIC_LLONG_LOCK_FREE unspecified |
| #define ATOMIC_POINTER_LOCK_FREE unspecified |
| |
| // flag type and operations |
| |
| typedef struct atomic_flag |
| { |
| bool test_and_set(memory_order m = memory_order_seq_cst) volatile noexcept; |
| bool test_and_set(memory_order m = memory_order_seq_cst) noexcept; |
| void clear(memory_order m = memory_order_seq_cst) volatile noexcept; |
| void clear(memory_order m = memory_order_seq_cst) noexcept; |
| atomic_flag() noexcept = default; |
| atomic_flag(const atomic_flag&) = delete; |
| atomic_flag& operator=(const atomic_flag&) = delete; |
| atomic_flag& operator=(const atomic_flag&) volatile = delete; |
| } atomic_flag; |
| |
| bool |
| atomic_flag_test_and_set(volatile atomic_flag* obj) noexcept; |
| |
| bool |
| atomic_flag_test_and_set(atomic_flag* obj) noexcept; |
| |
| bool |
| atomic_flag_test_and_set_explicit(volatile atomic_flag* obj, |
| memory_order m) noexcept; |
| |
| bool |
| atomic_flag_test_and_set_explicit(atomic_flag* obj, memory_order m) noexcept; |
| |
| void |
| atomic_flag_clear(volatile atomic_flag* obj) noexcept; |
| |
| void |
| atomic_flag_clear(atomic_flag* obj) noexcept; |
| |
| void |
| atomic_flag_clear_explicit(volatile atomic_flag* obj, memory_order m) noexcept; |
| |
| void |
| atomic_flag_clear_explicit(atomic_flag* obj, memory_order m) noexcept; |
| |
| #define ATOMIC_FLAG_INIT see below |
| #define ATOMIC_VAR_INIT(value) see below |
| |
| template <class T> |
| struct atomic |
| { |
| static constexpr bool is_always_lock_free; |
| bool is_lock_free() const volatile noexcept; |
| bool is_lock_free() const noexcept; |
| void store(T desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| void store(T desr, memory_order m = memory_order_seq_cst) noexcept; |
| T load(memory_order m = memory_order_seq_cst) const volatile noexcept; |
| T load(memory_order m = memory_order_seq_cst) const noexcept; |
| operator T() const volatile noexcept; |
| operator T() const noexcept; |
| T exchange(T desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| T exchange(T desr, memory_order m = memory_order_seq_cst) noexcept; |
| bool compare_exchange_weak(T& expc, T desr, |
| memory_order s, memory_order f) volatile noexcept; |
| bool compare_exchange_weak(T& expc, T desr, memory_order s, memory_order f) noexcept; |
| bool compare_exchange_strong(T& expc, T desr, |
| memory_order s, memory_order f) volatile noexcept; |
| bool compare_exchange_strong(T& expc, T desr, |
| memory_order s, memory_order f) noexcept; |
| bool compare_exchange_weak(T& expc, T desr, |
| memory_order m = memory_order_seq_cst) volatile noexcept; |
| bool compare_exchange_weak(T& expc, T desr, |
| memory_order m = memory_order_seq_cst) noexcept; |
| bool compare_exchange_strong(T& expc, T desr, |
| memory_order m = memory_order_seq_cst) volatile noexcept; |
| bool compare_exchange_strong(T& expc, T desr, |
| memory_order m = memory_order_seq_cst) noexcept; |
| |
| atomic() noexcept = default; |
| constexpr atomic(T desr) noexcept; |
| atomic(const atomic&) = delete; |
| atomic& operator=(const atomic&) = delete; |
| atomic& operator=(const atomic&) volatile = delete; |
| T operator=(T) volatile noexcept; |
| T operator=(T) noexcept; |
| }; |
| |
| template <> |
| struct atomic<integral> |
| { |
| static constexpr bool is_always_lock_free; |
| bool is_lock_free() const volatile noexcept; |
| bool is_lock_free() const noexcept; |
| void store(integral desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| void store(integral desr, memory_order m = memory_order_seq_cst) noexcept; |
| integral load(memory_order m = memory_order_seq_cst) const volatile noexcept; |
| integral load(memory_order m = memory_order_seq_cst) const noexcept; |
| operator integral() const volatile noexcept; |
| operator integral() const noexcept; |
| integral exchange(integral desr, |
| memory_order m = memory_order_seq_cst) volatile noexcept; |
| integral exchange(integral desr, memory_order m = memory_order_seq_cst) noexcept; |
| bool compare_exchange_weak(integral& expc, integral desr, |
| memory_order s, memory_order f) volatile noexcept; |
| bool compare_exchange_weak(integral& expc, integral desr, |
| memory_order s, memory_order f) noexcept; |
| bool compare_exchange_strong(integral& expc, integral desr, |
| memory_order s, memory_order f) volatile noexcept; |
| bool compare_exchange_strong(integral& expc, integral desr, |
| memory_order s, memory_order f) noexcept; |
| bool compare_exchange_weak(integral& expc, integral desr, |
| memory_order m = memory_order_seq_cst) volatile noexcept; |
| bool compare_exchange_weak(integral& expc, integral desr, |
| memory_order m = memory_order_seq_cst) noexcept; |
| bool compare_exchange_strong(integral& expc, integral desr, |
| memory_order m = memory_order_seq_cst) volatile noexcept; |
| bool compare_exchange_strong(integral& expc, integral desr, |
| memory_order m = memory_order_seq_cst) noexcept; |
| |
| integral |
| fetch_add(integral op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| integral fetch_add(integral op, memory_order m = memory_order_seq_cst) noexcept; |
| integral |
| fetch_sub(integral op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| integral fetch_sub(integral op, memory_order m = memory_order_seq_cst) noexcept; |
| integral |
| fetch_and(integral op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| integral fetch_and(integral op, memory_order m = memory_order_seq_cst) noexcept; |
| integral |
| fetch_or(integral op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| integral fetch_or(integral op, memory_order m = memory_order_seq_cst) noexcept; |
| integral |
| fetch_xor(integral op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| integral fetch_xor(integral op, memory_order m = memory_order_seq_cst) noexcept; |
| |
| atomic() noexcept = default; |
| constexpr atomic(integral desr) noexcept; |
| atomic(const atomic&) = delete; |
| atomic& operator=(const atomic&) = delete; |
| atomic& operator=(const atomic&) volatile = delete; |
| integral operator=(integral desr) volatile noexcept; |
| integral operator=(integral desr) noexcept; |
| |
| integral operator++(int) volatile noexcept; |
| integral operator++(int) noexcept; |
| integral operator--(int) volatile noexcept; |
| integral operator--(int) noexcept; |
| integral operator++() volatile noexcept; |
| integral operator++() noexcept; |
| integral operator--() volatile noexcept; |
| integral operator--() noexcept; |
| integral operator+=(integral op) volatile noexcept; |
| integral operator+=(integral op) noexcept; |
| integral operator-=(integral op) volatile noexcept; |
| integral operator-=(integral op) noexcept; |
| integral operator&=(integral op) volatile noexcept; |
| integral operator&=(integral op) noexcept; |
| integral operator|=(integral op) volatile noexcept; |
| integral operator|=(integral op) noexcept; |
| integral operator^=(integral op) volatile noexcept; |
| integral operator^=(integral op) noexcept; |
| }; |
| |
| template <class T> |
| struct atomic<T*> |
| { |
| static constexpr bool is_always_lock_free; |
| bool is_lock_free() const volatile noexcept; |
| bool is_lock_free() const noexcept; |
| void store(T* desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| void store(T* desr, memory_order m = memory_order_seq_cst) noexcept; |
| T* load(memory_order m = memory_order_seq_cst) const volatile noexcept; |
| T* load(memory_order m = memory_order_seq_cst) const noexcept; |
| operator T*() const volatile noexcept; |
| operator T*() const noexcept; |
| T* exchange(T* desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| T* exchange(T* desr, memory_order m = memory_order_seq_cst) noexcept; |
| bool compare_exchange_weak(T*& expc, T* desr, |
| memory_order s, memory_order f) volatile noexcept; |
| bool compare_exchange_weak(T*& expc, T* desr, |
| memory_order s, memory_order f) noexcept; |
| bool compare_exchange_strong(T*& expc, T* desr, |
| memory_order s, memory_order f) volatile noexcept; |
| bool compare_exchange_strong(T*& expc, T* desr, |
| memory_order s, memory_order f) noexcept; |
| bool compare_exchange_weak(T*& expc, T* desr, |
| memory_order m = memory_order_seq_cst) volatile noexcept; |
| bool compare_exchange_weak(T*& expc, T* desr, |
| memory_order m = memory_order_seq_cst) noexcept; |
| bool compare_exchange_strong(T*& expc, T* desr, |
| memory_order m = memory_order_seq_cst) volatile noexcept; |
| bool compare_exchange_strong(T*& expc, T* desr, |
| memory_order m = memory_order_seq_cst) noexcept; |
| T* fetch_add(ptrdiff_t op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| T* fetch_add(ptrdiff_t op, memory_order m = memory_order_seq_cst) noexcept; |
| T* fetch_sub(ptrdiff_t op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| T* fetch_sub(ptrdiff_t op, memory_order m = memory_order_seq_cst) noexcept; |
| |
| atomic() noexcept = default; |
| constexpr atomic(T* desr) noexcept; |
| atomic(const atomic&) = delete; |
| atomic& operator=(const atomic&) = delete; |
| atomic& operator=(const atomic&) volatile = delete; |
| |
| T* operator=(T*) volatile noexcept; |
| T* operator=(T*) noexcept; |
| T* operator++(int) volatile noexcept; |
| T* operator++(int) noexcept; |
| T* operator--(int) volatile noexcept; |
| T* operator--(int) noexcept; |
| T* operator++() volatile noexcept; |
| T* operator++() noexcept; |
| T* operator--() volatile noexcept; |
| T* operator--() noexcept; |
| T* operator+=(ptrdiff_t op) volatile noexcept; |
| T* operator+=(ptrdiff_t op) noexcept; |
| T* operator-=(ptrdiff_t op) volatile noexcept; |
| T* operator-=(ptrdiff_t op) noexcept; |
| }; |
| |
| |
| template <class T> |
| bool |
| atomic_is_lock_free(const volatile atomic<T>* obj) noexcept; |
| |
| template <class T> |
| bool |
| atomic_is_lock_free(const atomic<T>* obj) noexcept; |
| |
| template <class T> |
| void |
| atomic_init(volatile atomic<T>* obj, T desr) noexcept; |
| |
| template <class T> |
| void |
| atomic_init(atomic<T>* obj, T desr) noexcept; |
| |
| template <class T> |
| void |
| atomic_store(volatile atomic<T>* obj, T desr) noexcept; |
| |
| template <class T> |
| void |
| atomic_store(atomic<T>* obj, T desr) noexcept; |
| |
| template <class T> |
| void |
| atomic_store_explicit(volatile atomic<T>* obj, T desr, memory_order m) noexcept; |
| |
| template <class T> |
| void |
| atomic_store_explicit(atomic<T>* obj, T desr, memory_order m) noexcept; |
| |
| template <class T> |
| T |
| atomic_load(const volatile atomic<T>* obj) noexcept; |
| |
| template <class T> |
| T |
| atomic_load(const atomic<T>* obj) noexcept; |
| |
| template <class T> |
| T |
| atomic_load_explicit(const volatile atomic<T>* obj, memory_order m) noexcept; |
| |
| template <class T> |
| T |
| atomic_load_explicit(const atomic<T>* obj, memory_order m) noexcept; |
| |
| template <class T> |
| T |
| atomic_exchange(volatile atomic<T>* obj, T desr) noexcept; |
| |
| template <class T> |
| T |
| atomic_exchange(atomic<T>* obj, T desr) noexcept; |
| |
| template <class T> |
| T |
| atomic_exchange_explicit(volatile atomic<T>* obj, T desr, memory_order m) noexcept; |
| |
| template <class T> |
| T |
| atomic_exchange_explicit(atomic<T>* obj, T desr, memory_order m) noexcept; |
| |
| template <class T> |
| bool |
| atomic_compare_exchange_weak(volatile atomic<T>* obj, T* expc, T desr) noexcept; |
| |
| template <class T> |
| bool |
| atomic_compare_exchange_weak(atomic<T>* obj, T* expc, T desr) noexcept; |
| |
| template <class T> |
| bool |
| atomic_compare_exchange_strong(volatile atomic<T>* obj, T* expc, T desr) noexcept; |
| |
| template <class T> |
| bool |
| atomic_compare_exchange_strong(atomic<T>* obj, T* expc, T desr) noexcept; |
| |
| template <class T> |
| bool |
| atomic_compare_exchange_weak_explicit(volatile atomic<T>* obj, T* expc, |
| T desr, |
| memory_order s, memory_order f) noexcept; |
| |
| template <class T> |
| bool |
| atomic_compare_exchange_weak_explicit(atomic<T>* obj, T* expc, T desr, |
| memory_order s, memory_order f) noexcept; |
| |
| template <class T> |
| bool |
| atomic_compare_exchange_strong_explicit(volatile atomic<T>* obj, |
| T* expc, T desr, |
| memory_order s, memory_order f) noexcept; |
| |
| template <class T> |
| bool |
| atomic_compare_exchange_strong_explicit(atomic<T>* obj, T* expc, |
| T desr, |
| memory_order s, memory_order f) noexcept; |
| |
| template <class Integral> |
| Integral |
| atomic_fetch_add(volatile atomic<Integral>* obj, Integral op) noexcept; |
| |
| template <class Integral> |
| Integral |
| atomic_fetch_add(atomic<Integral>* obj, Integral op) noexcept; |
| |
| template <class Integral> |
| Integral |
| atomic_fetch_add_explicit(volatile atomic<Integral>* obj, Integral op, |
| memory_order m) noexcept; |
| template <class Integral> |
| Integral |
| atomic_fetch_add_explicit(atomic<Integral>* obj, Integral op, |
| memory_order m) noexcept; |
| template <class Integral> |
| Integral |
| atomic_fetch_sub(volatile atomic<Integral>* obj, Integral op) noexcept; |
| |
| template <class Integral> |
| Integral |
| atomic_fetch_sub(atomic<Integral>* obj, Integral op) noexcept; |
| |
| template <class Integral> |
| Integral |
| atomic_fetch_sub_explicit(volatile atomic<Integral>* obj, Integral op, |
| memory_order m) noexcept; |
| template <class Integral> |
| Integral |
| atomic_fetch_sub_explicit(atomic<Integral>* obj, Integral op, |
| memory_order m) noexcept; |
| template <class Integral> |
| Integral |
| atomic_fetch_and(volatile atomic<Integral>* obj, Integral op) noexcept; |
| |
| template <class Integral> |
| Integral |
| atomic_fetch_and(atomic<Integral>* obj, Integral op) noexcept; |
| |
| template <class Integral> |
| Integral |
| atomic_fetch_and_explicit(volatile atomic<Integral>* obj, Integral op, |
| memory_order m) noexcept; |
| template <class Integral> |
| Integral |
| atomic_fetch_and_explicit(atomic<Integral>* obj, Integral op, |
| memory_order m) noexcept; |
| template <class Integral> |
| Integral |
| atomic_fetch_or(volatile atomic<Integral>* obj, Integral op) noexcept; |
| |
| template <class Integral> |
| Integral |
| atomic_fetch_or(atomic<Integral>* obj, Integral op) noexcept; |
| |
| template <class Integral> |
| Integral |
| atomic_fetch_or_explicit(volatile atomic<Integral>* obj, Integral op, |
| memory_order m) noexcept; |
| template <class Integral> |
| Integral |
| atomic_fetch_or_explicit(atomic<Integral>* obj, Integral op, |
| memory_order m) noexcept; |
| template <class Integral> |
| Integral |
| atomic_fetch_xor(volatile atomic<Integral>* obj, Integral op) noexcept; |
| |
| template <class Integral> |
| Integral |
| atomic_fetch_xor(atomic<Integral>* obj, Integral op) noexcept; |
| |
| template <class Integral> |
| Integral |
| atomic_fetch_xor_explicit(volatile atomic<Integral>* obj, Integral op, |
| memory_order m) noexcept; |
| template <class Integral> |
| Integral |
| atomic_fetch_xor_explicit(atomic<Integral>* obj, Integral op, |
| memory_order m) noexcept; |
| |
| template <class T> |
| T* |
| atomic_fetch_add(volatile atomic<T*>* obj, ptrdiff_t op) noexcept; |
| |
| template <class T> |
| T* |
| atomic_fetch_add(atomic<T*>* obj, ptrdiff_t op) noexcept; |
| |
| template <class T> |
| T* |
| atomic_fetch_add_explicit(volatile atomic<T*>* obj, ptrdiff_t op, |
| memory_order m) noexcept; |
| template <class T> |
| T* |
| atomic_fetch_add_explicit(atomic<T*>* obj, ptrdiff_t op, memory_order m) noexcept; |
| |
| template <class T> |
| T* |
| atomic_fetch_sub(volatile atomic<T*>* obj, ptrdiff_t op) noexcept; |
| |
| template <class T> |
| T* |
| atomic_fetch_sub(atomic<T*>* obj, ptrdiff_t op) noexcept; |
| |
| template <class T> |
| T* |
| atomic_fetch_sub_explicit(volatile atomic<T*>* obj, ptrdiff_t op, |
| memory_order m) noexcept; |
| template <class T> |
| T* |
| atomic_fetch_sub_explicit(atomic<T*>* obj, ptrdiff_t op, memory_order m) noexcept; |
| |
| // Atomics for standard typedef types |
| |
| typedef atomic<bool> atomic_bool; |
| typedef atomic<char> atomic_char; |
| typedef atomic<signed char> atomic_schar; |
| typedef atomic<unsigned char> atomic_uchar; |
| typedef atomic<short> atomic_short; |
| typedef atomic<unsigned short> atomic_ushort; |
| typedef atomic<int> atomic_int; |
| typedef atomic<unsigned int> atomic_uint; |
| typedef atomic<long> atomic_long; |
| typedef atomic<unsigned long> atomic_ulong; |
| typedef atomic<long long> atomic_llong; |
| typedef atomic<unsigned long long> atomic_ullong; |
| typedef atomic<char16_t> atomic_char16_t; |
| typedef atomic<char32_t> atomic_char32_t; |
| typedef atomic<wchar_t> atomic_wchar_t; |
| |
| typedef atomic<int_least8_t> atomic_int_least8_t; |
| typedef atomic<uint_least8_t> atomic_uint_least8_t; |
| typedef atomic<int_least16_t> atomic_int_least16_t; |
| typedef atomic<uint_least16_t> atomic_uint_least16_t; |
| typedef atomic<int_least32_t> atomic_int_least32_t; |
| typedef atomic<uint_least32_t> atomic_uint_least32_t; |
| typedef atomic<int_least64_t> atomic_int_least64_t; |
| typedef atomic<uint_least64_t> atomic_uint_least64_t; |
| |
| typedef atomic<int_fast8_t> atomic_int_fast8_t; |
| typedef atomic<uint_fast8_t> atomic_uint_fast8_t; |
| typedef atomic<int_fast16_t> atomic_int_fast16_t; |
| typedef atomic<uint_fast16_t> atomic_uint_fast16_t; |
| typedef atomic<int_fast32_t> atomic_int_fast32_t; |
| typedef atomic<uint_fast32_t> atomic_uint_fast32_t; |
| typedef atomic<int_fast64_t> atomic_int_fast64_t; |
| typedef atomic<uint_fast64_t> atomic_uint_fast64_t; |
| |
| typedef atomic<int8_t> atomic_int8_t; |
| typedef atomic<uint8_t> atomic_uint8_t; |
| typedef atomic<int16_t> atomic_int16_t; |
| typedef atomic<uint16_t> atomic_uint16_t; |
| typedef atomic<int32_t> atomic_int32_t; |
| typedef atomic<uint32_t> atomic_uint32_t; |
| typedef atomic<int64_t> atomic_int64_t; |
| typedef atomic<uint64_t> atomic_uint64_t; |
| |
| typedef atomic<intptr_t> atomic_intptr_t; |
| typedef atomic<uintptr_t> atomic_uintptr_t; |
| typedef atomic<size_t> atomic_size_t; |
| typedef atomic<ptrdiff_t> atomic_ptrdiff_t; |
| typedef atomic<intmax_t> atomic_intmax_t; |
| typedef atomic<uintmax_t> atomic_uintmax_t; |
| |
| // fences |
| |
| void atomic_thread_fence(memory_order m) noexcept; |
| void atomic_signal_fence(memory_order m) noexcept; |
| |
| } // std |
| |
| */ |
| |
| #include <__config> |
| #include <cstddef> |
| #include <cstdint> |
| #include <type_traits> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| #pragma GCC system_header |
| #endif |
| |
| #ifdef _LIBCPP_HAS_NO_THREADS |
| #error <atomic> is not supported on this single threaded system |
| #endif |
| #if !defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) |
| #error <atomic> is not implemented |
| #endif |
| #ifdef kill_dependency |
| #error C++ standard library is incompatible with <stdatomic.h> |
| #endif |
| |
| #if _LIBCPP_STD_VER > 14 |
| # define __cpp_lib_atomic_is_always_lock_free 201603L |
| #endif |
| |
| #define _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) \ |
| _LIBCPP_DIAGNOSE_WARNING(__m == memory_order_consume || \ |
| __m == memory_order_acquire || \ |
| __m == memory_order_acq_rel, \ |
| "memory order argument to atomic operation is invalid") |
| |
| #define _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) \ |
| _LIBCPP_DIAGNOSE_WARNING(__m == memory_order_release || \ |
| __m == memory_order_acq_rel, \ |
| "memory order argument to atomic operation is invalid") |
| |
| #define _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__m, __f) \ |
| _LIBCPP_DIAGNOSE_WARNING(__f == memory_order_release || \ |
| __f == memory_order_acq_rel, \ |
| "memory order argument to atomic operation is invalid") |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| typedef enum memory_order |
| { |
| memory_order_relaxed, memory_order_consume, memory_order_acquire, |
| memory_order_release, memory_order_acq_rel, memory_order_seq_cst |
| } memory_order; |
| |
| #if defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) |
| namespace __gcc_atomic { |
| template <typename _Tp> |
| struct __gcc_atomic_t { |
| |
| #if _GNUC_VER >= 501 |
| static_assert(is_trivially_copyable<_Tp>::value, |
| "std::atomic<Tp> requires that 'Tp' be a trivially copyable type"); |
| #endif |
| |
| _LIBCPP_INLINE_VISIBILITY |
| #ifndef _LIBCPP_CXX03_LANG |
| __gcc_atomic_t() _NOEXCEPT = default; |
| #else |
| __gcc_atomic_t() _NOEXCEPT : __a_value() {} |
| #endif // _LIBCPP_CXX03_LANG |
| _LIBCPP_CONSTEXPR explicit __gcc_atomic_t(_Tp value) _NOEXCEPT |
| : __a_value(value) {} |
| _Tp __a_value; |
| }; |
| #define _Atomic(x) __gcc_atomic::__gcc_atomic_t<x> |
| |
| template <typename _Tp> _Tp __create(); |
| |
| template <typename _Tp, typename _Td> |
| typename enable_if<sizeof(_Tp()->__a_value = __create<_Td>()), char>::type |
| __test_atomic_assignable(int); |
| template <typename _Tp, typename _Up> |
| __two __test_atomic_assignable(...); |
| |
| template <typename _Tp, typename _Td> |
| struct __can_assign { |
| static const bool value = |
| sizeof(__test_atomic_assignable<_Tp, _Td>(1)) == sizeof(char); |
| }; |
| |
| static inline _LIBCPP_CONSTEXPR int __to_gcc_order(memory_order __order) { |
| // Avoid switch statement to make this a constexpr. |
| return __order == memory_order_relaxed ? __ATOMIC_RELAXED: |
| (__order == memory_order_acquire ? __ATOMIC_ACQUIRE: |
| (__order == memory_order_release ? __ATOMIC_RELEASE: |
| (__order == memory_order_seq_cst ? __ATOMIC_SEQ_CST: |
| (__order == memory_order_acq_rel ? __ATOMIC_ACQ_REL: |
| __ATOMIC_CONSUME)))); |
| } |
| |
| static inline _LIBCPP_CONSTEXPR int __to_gcc_failure_order(memory_order __order) { |
| // Avoid switch statement to make this a constexpr. |
| return __order == memory_order_relaxed ? __ATOMIC_RELAXED: |
| (__order == memory_order_acquire ? __ATOMIC_ACQUIRE: |
| (__order == memory_order_release ? __ATOMIC_RELAXED: |
| (__order == memory_order_seq_cst ? __ATOMIC_SEQ_CST: |
| (__order == memory_order_acq_rel ? __ATOMIC_ACQUIRE: |
| __ATOMIC_CONSUME)))); |
| } |
| |
| } // namespace __gcc_atomic |
| |
| template <typename _Tp> |
| static inline |
| typename enable_if< |
| __gcc_atomic::__can_assign<volatile _Atomic(_Tp)*, _Tp>::value>::type |
| __c11_atomic_init(volatile _Atomic(_Tp)* __a, _Tp __val) { |
| __a->__a_value = __val; |
| } |
| |
| template <typename _Tp> |
| static inline |
| typename enable_if< |
| !__gcc_atomic::__can_assign<volatile _Atomic(_Tp)*, _Tp>::value && |
| __gcc_atomic::__can_assign< _Atomic(_Tp)*, _Tp>::value>::type |
| __c11_atomic_init(volatile _Atomic(_Tp)* __a, _Tp __val) { |
| // [atomics.types.generic]p1 guarantees _Tp is trivially copyable. Because |
| // the default operator= in an object is not volatile, a byte-by-byte copy |
| // is required. |
| volatile char* to = reinterpret_cast<volatile char*>(&__a->__a_value); |
| volatile char* end = to + sizeof(_Tp); |
| char* from = reinterpret_cast<char*>(&__val); |
| while (to != end) { |
| *to++ = *from++; |
| } |
| } |
| |
| template <typename _Tp> |
| static inline void __c11_atomic_init(_Atomic(_Tp)* __a, _Tp __val) { |
| __a->__a_value = __val; |
| } |
| |
| static inline void __c11_atomic_thread_fence(memory_order __order) { |
| __atomic_thread_fence(__gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| static inline void __c11_atomic_signal_fence(memory_order __order) { |
| __atomic_signal_fence(__gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp> |
| static inline void __c11_atomic_store(volatile _Atomic(_Tp)* __a, _Tp __val, |
| memory_order __order) { |
| return __atomic_store(&__a->__a_value, &__val, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp> |
| static inline void __c11_atomic_store(_Atomic(_Tp)* __a, _Tp __val, |
| memory_order __order) { |
| __atomic_store(&__a->__a_value, &__val, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp> |
| static inline _Tp __c11_atomic_load(const volatile _Atomic(_Tp)* __a, |
| memory_order __order) { |
| _Tp __ret; |
| __atomic_load(&__a->__a_value, &__ret, |
| __gcc_atomic::__to_gcc_order(__order)); |
| return __ret; |
| } |
| |
| template <typename _Tp> |
| static inline _Tp __c11_atomic_load(const _Atomic(_Tp)* __a, memory_order __order) { |
| _Tp __ret; |
| __atomic_load(&__a->__a_value, &__ret, |
| __gcc_atomic::__to_gcc_order(__order)); |
| return __ret; |
| } |
| |
| template <typename _Tp> |
| static inline _Tp __c11_atomic_exchange(volatile _Atomic(_Tp)* __a, |
| _Tp __value, memory_order __order) { |
| _Tp __ret; |
| __atomic_exchange(&__a->__a_value, &__value, &__ret, |
| __gcc_atomic::__to_gcc_order(__order)); |
| return __ret; |
| } |
| |
| template <typename _Tp> |
| static inline _Tp __c11_atomic_exchange(_Atomic(_Tp)* __a, _Tp __value, |
| memory_order __order) { |
| _Tp __ret; |
| __atomic_exchange(&__a->__a_value, &__value, &__ret, |
| __gcc_atomic::__to_gcc_order(__order)); |
| return __ret; |
| } |
| |
| template <typename _Tp> |
| static inline bool __c11_atomic_compare_exchange_strong( |
| volatile _Atomic(_Tp)* __a, _Tp* __expected, _Tp __value, |
| memory_order __success, memory_order __failure) { |
| return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, |
| false, |
| __gcc_atomic::__to_gcc_order(__success), |
| __gcc_atomic::__to_gcc_failure_order(__failure)); |
| } |
| |
| template <typename _Tp> |
| static inline bool __c11_atomic_compare_exchange_strong( |
| _Atomic(_Tp)* __a, _Tp* __expected, _Tp __value, memory_order __success, |
| memory_order __failure) { |
| return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, |
| false, |
| __gcc_atomic::__to_gcc_order(__success), |
| __gcc_atomic::__to_gcc_failure_order(__failure)); |
| } |
| |
| template <typename _Tp> |
| static inline bool __c11_atomic_compare_exchange_weak( |
| volatile _Atomic(_Tp)* __a, _Tp* __expected, _Tp __value, |
| memory_order __success, memory_order __failure) { |
| return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, |
| true, |
| __gcc_atomic::__to_gcc_order(__success), |
| __gcc_atomic::__to_gcc_failure_order(__failure)); |
| } |
| |
| template <typename _Tp> |
| static inline bool __c11_atomic_compare_exchange_weak( |
| _Atomic(_Tp)* __a, _Tp* __expected, _Tp __value, memory_order __success, |
| memory_order __failure) { |
| return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, |
| true, |
| __gcc_atomic::__to_gcc_order(__success), |
| __gcc_atomic::__to_gcc_failure_order(__failure)); |
| } |
| |
| template <typename _Tp> |
| struct __skip_amt { enum {value = 1}; }; |
| |
| template <typename _Tp> |
| struct __skip_amt<_Tp*> { enum {value = sizeof(_Tp)}; }; |
| |
| // FIXME: Haven't figured out what the spec says about using arrays with |
| // atomic_fetch_add. Force a failure rather than creating bad behavior. |
| template <typename _Tp> |
| struct __skip_amt<_Tp[]> { }; |
| template <typename _Tp, int n> |
| struct __skip_amt<_Tp[n]> { }; |
| |
| template <typename _Tp, typename _Td> |
| static inline _Tp __c11_atomic_fetch_add(volatile _Atomic(_Tp)* __a, |
| _Td __delta, memory_order __order) { |
| return __atomic_fetch_add(&__a->__a_value, __delta * __skip_amt<_Tp>::value, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp, typename _Td> |
| static inline _Tp __c11_atomic_fetch_add(_Atomic(_Tp)* __a, _Td __delta, |
| memory_order __order) { |
| return __atomic_fetch_add(&__a->__a_value, __delta * __skip_amt<_Tp>::value, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp, typename _Td> |
| static inline _Tp __c11_atomic_fetch_sub(volatile _Atomic(_Tp)* __a, |
| _Td __delta, memory_order __order) { |
| return __atomic_fetch_sub(&__a->__a_value, __delta * __skip_amt<_Tp>::value, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp, typename _Td> |
| static inline _Tp __c11_atomic_fetch_sub(_Atomic(_Tp)* __a, _Td __delta, |
| memory_order __order) { |
| return __atomic_fetch_sub(&__a->__a_value, __delta * __skip_amt<_Tp>::value, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp> |
| static inline _Tp __c11_atomic_fetch_and(volatile _Atomic(_Tp)* __a, |
| _Tp __pattern, memory_order __order) { |
| return __atomic_fetch_and(&__a->__a_value, __pattern, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp> |
| static inline _Tp __c11_atomic_fetch_and(_Atomic(_Tp)* __a, |
| _Tp __pattern, memory_order __order) { |
| return __atomic_fetch_and(&__a->__a_value, __pattern, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp> |
| static inline _Tp __c11_atomic_fetch_or(volatile _Atomic(_Tp)* __a, |
| _Tp __pattern, memory_order __order) { |
| return __atomic_fetch_or(&__a->__a_value, __pattern, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp> |
| static inline _Tp __c11_atomic_fetch_or(_Atomic(_Tp)* __a, _Tp __pattern, |
| memory_order __order) { |
| return __atomic_fetch_or(&__a->__a_value, __pattern, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp> |
| static inline _Tp __c11_atomic_fetch_xor(volatile _Atomic(_Tp)* __a, |
| _Tp __pattern, memory_order __order) { |
| return __atomic_fetch_xor(&__a->__a_value, __pattern, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| |
| template <typename _Tp> |
| static inline _Tp __c11_atomic_fetch_xor(_Atomic(_Tp)* __a, _Tp __pattern, |
| memory_order __order) { |
| return __atomic_fetch_xor(&__a->__a_value, __pattern, |
| __gcc_atomic::__to_gcc_order(__order)); |
| } |
| #endif // _LIBCPP_HAS_GCC_ATOMIC_IMP |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp |
| kill_dependency(_Tp __y) _NOEXCEPT |
| { |
| return __y; |
| } |
| |
| #if defined(__CLANG_ATOMIC_BOOL_LOCK_FREE) |
| # define ATOMIC_BOOL_LOCK_FREE __CLANG_ATOMIC_BOOL_LOCK_FREE |
| # define ATOMIC_CHAR_LOCK_FREE __CLANG_ATOMIC_CHAR_LOCK_FREE |
| # define ATOMIC_CHAR16_T_LOCK_FREE __CLANG_ATOMIC_CHAR16_T_LOCK_FREE |
| # define ATOMIC_CHAR32_T_LOCK_FREE __CLANG_ATOMIC_CHAR32_T_LOCK_FREE |
| # define ATOMIC_WCHAR_T_LOCK_FREE __CLANG_ATOMIC_WCHAR_T_LOCK_FREE |
| # define ATOMIC_SHORT_LOCK_FREE __CLANG_ATOMIC_SHORT_LOCK_FREE |
| # define ATOMIC_INT_LOCK_FREE __CLANG_ATOMIC_INT_LOCK_FREE |
| # define ATOMIC_LONG_LOCK_FREE __CLANG_ATOMIC_LONG_LOCK_FREE |
| # define ATOMIC_LLONG_LOCK_FREE __CLANG_ATOMIC_LLONG_LOCK_FREE |
| # define ATOMIC_POINTER_LOCK_FREE __CLANG_ATOMIC_POINTER_LOCK_FREE |
| #else |
| # define ATOMIC_BOOL_LOCK_FREE __GCC_ATOMIC_BOOL_LOCK_FREE |
| # define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE |
| # define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE |
| # define ATOMIC_CHAR32_T_LOCK_FREE __GCC_ATOMIC_CHAR32_T_LOCK_FREE |
| # define ATOMIC_WCHAR_T_LOCK_FREE __GCC_ATOMIC_WCHAR_T_LOCK_FREE |
| # define ATOMIC_SHORT_LOCK_FREE __GCC_ATOMIC_SHORT_LOCK_FREE |
| # define ATOMIC_INT_LOCK_FREE __GCC_ATOMIC_INT_LOCK_FREE |
| # define ATOMIC_LONG_LOCK_FREE __GCC_ATOMIC_LONG_LOCK_FREE |
| # define ATOMIC_LLONG_LOCK_FREE __GCC_ATOMIC_LLONG_LOCK_FREE |
| # define ATOMIC_POINTER_LOCK_FREE __GCC_ATOMIC_POINTER_LOCK_FREE |
| #endif |
| |
| // general atomic<T> |
| |
| template <class _Tp, bool = is_integral<_Tp>::value && !is_same<_Tp, bool>::value> |
| struct __atomic_base // false |
| { |
| mutable _Atomic(_Tp) __a_; |
| |
| #if defined(__cpp_lib_atomic_is_always_lock_free) |
| static _LIBCPP_CONSTEXPR bool is_always_lock_free = __atomic_always_lock_free(sizeof(__a_), 0); |
| #endif |
| |
| _LIBCPP_INLINE_VISIBILITY |
| bool is_lock_free() const volatile _NOEXCEPT |
| { |
| #if defined(_LIBCPP_HAS_C_ATOMIC_IMP) |
| return __c11_atomic_is_lock_free(sizeof(_Tp)); |
| #else |
| return __atomic_is_lock_free(sizeof(_Tp), 0); |
| #endif |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| bool is_lock_free() const _NOEXCEPT |
| {return static_cast<__atomic_base const volatile*>(this)->is_lock_free();} |
| _LIBCPP_INLINE_VISIBILITY |
| void store(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
| _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) |
| {__c11_atomic_store(&__a_, __d, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| void store(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) |
| {__c11_atomic_store(&__a_, __d, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp load(memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT |
| _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) |
| {return __c11_atomic_load(&__a_, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp load(memory_order __m = memory_order_seq_cst) const _NOEXCEPT |
| _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) |
| {return __c11_atomic_load(&__a_, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| operator _Tp() const volatile _NOEXCEPT {return load();} |
| _LIBCPP_INLINE_VISIBILITY |
| operator _Tp() const _NOEXCEPT {return load();} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
| {return __c11_atomic_exchange(&__a_, __d, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {return __c11_atomic_exchange(&__a_, __d, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool compare_exchange_weak(_Tp& __e, _Tp __d, |
| memory_order __s, memory_order __f) volatile _NOEXCEPT |
| _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
| {return __c11_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool compare_exchange_weak(_Tp& __e, _Tp __d, |
| memory_order __s, memory_order __f) _NOEXCEPT |
| _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
| {return __c11_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool compare_exchange_strong(_Tp& __e, _Tp __d, |
| memory_order __s, memory_order __f) volatile _NOEXCEPT |
| _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
| {return __c11_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool compare_exchange_strong(_Tp& __e, _Tp __d, |
| memory_order __s, memory_order __f) _NOEXCEPT |
| _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
| {return __c11_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool compare_exchange_weak(_Tp& __e, _Tp __d, |
| memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
| {return __c11_atomic_compare_exchange_weak(&__a_, &__e, __d, __m, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool compare_exchange_weak(_Tp& __e, _Tp __d, |
| memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {return __c11_atomic_compare_exchange_weak(&__a_, &__e, __d, __m, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool compare_exchange_strong(_Tp& __e, _Tp __d, |
| memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
| {return __c11_atomic_compare_exchange_strong(&__a_, &__e, __d, __m, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool compare_exchange_strong(_Tp& __e, _Tp __d, |
| memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {return __c11_atomic_compare_exchange_strong(&__a_, &__e, __d, __m, __m);} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| #ifndef _LIBCPP_CXX03_LANG |
| __atomic_base() _NOEXCEPT = default; |
| #else |
| __atomic_base() _NOEXCEPT : __a_() {} |
| #endif // _LIBCPP_CXX03_LANG |
| |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR __atomic_base(_Tp __d) _NOEXCEPT : __a_(__d) {} |
| #ifndef _LIBCPP_CXX03_LANG |
| __atomic_base(const __atomic_base&) = delete; |
| __atomic_base& operator=(const __atomic_base&) = delete; |
| __atomic_base& operator=(const __atomic_base&) volatile = delete; |
| #else |
| private: |
| __atomic_base(const __atomic_base&); |
| __atomic_base& operator=(const __atomic_base&); |
| __atomic_base& operator=(const __atomic_base&) volatile; |
| #endif |
| }; |
| |
| #if defined(__cpp_lib_atomic_is_always_lock_free) |
| template <class _Tp, bool __b> |
| _LIBCPP_CONSTEXPR bool __atomic_base<_Tp, __b>::is_always_lock_free; |
| #endif |
| |
| // atomic<Integral> |
| |
| template <class _Tp> |
| struct __atomic_base<_Tp, true> |
| : public __atomic_base<_Tp, false> |
| { |
| typedef __atomic_base<_Tp, false> __base; |
| _LIBCPP_INLINE_VISIBILITY |
| __atomic_base() _NOEXCEPT _LIBCPP_DEFAULT |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR __atomic_base(_Tp __d) _NOEXCEPT : __base(__d) {} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
| {return __c11_atomic_fetch_add(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {return __c11_atomic_fetch_add(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
| {return __c11_atomic_fetch_sub(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {return __c11_atomic_fetch_sub(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
| {return __c11_atomic_fetch_and(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {return __c11_atomic_fetch_and(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
| {return __c11_atomic_fetch_or(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {return __c11_atomic_fetch_or(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
| {return __c11_atomic_fetch_xor(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {return __c11_atomic_fetch_xor(&this->__a_, __op, __m);} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator++(int) volatile _NOEXCEPT {return fetch_add(_Tp(1));} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator++(int) _NOEXCEPT {return fetch_add(_Tp(1));} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator--(int) volatile _NOEXCEPT {return fetch_sub(_Tp(1));} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator--(int) _NOEXCEPT {return fetch_sub(_Tp(1));} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator++() volatile _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator++() _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator--() volatile _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator--() _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator+=(_Tp __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator+=(_Tp __op) _NOEXCEPT {return fetch_add(__op) + __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator-=(_Tp __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator-=(_Tp __op) _NOEXCEPT {return fetch_sub(__op) - __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator&=(_Tp __op) volatile _NOEXCEPT {return fetch_and(__op) & __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator&=(_Tp __op) _NOEXCEPT {return fetch_and(__op) & __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator|=(_Tp __op) volatile _NOEXCEPT {return fetch_or(__op) | __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator|=(_Tp __op) _NOEXCEPT {return fetch_or(__op) | __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator^=(_Tp __op) volatile _NOEXCEPT {return fetch_xor(__op) ^ __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator^=(_Tp __op) _NOEXCEPT {return fetch_xor(__op) ^ __op;} |
| }; |
| |
| // atomic<T> |
| |
| template <class _Tp> |
| struct atomic |
| : public __atomic_base<_Tp> |
| { |
| typedef __atomic_base<_Tp> __base; |
| _LIBCPP_INLINE_VISIBILITY |
| atomic() _NOEXCEPT _LIBCPP_DEFAULT |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR atomic(_Tp __d) _NOEXCEPT : __base(__d) {} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator=(_Tp __d) volatile _NOEXCEPT |
| {__base::store(__d); return __d;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp operator=(_Tp __d) _NOEXCEPT |
| {__base::store(__d); return __d;} |
| }; |
| |
| // atomic<T*> |
| |
| template <class _Tp> |
| struct atomic<_Tp*> |
| : public __atomic_base<_Tp*> |
| { |
| typedef __atomic_base<_Tp*> __base; |
| _LIBCPP_INLINE_VISIBILITY |
| atomic() _NOEXCEPT _LIBCPP_DEFAULT |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR atomic(_Tp* __d) _NOEXCEPT : __base(__d) {} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator=(_Tp* __d) volatile _NOEXCEPT |
| {__base::store(__d); return __d;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator=(_Tp* __d) _NOEXCEPT |
| {__base::store(__d); return __d;} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) |
| volatile _NOEXCEPT |
| {return __c11_atomic_fetch_add(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {return __c11_atomic_fetch_add(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) |
| volatile _NOEXCEPT |
| {return __c11_atomic_fetch_sub(&this->__a_, __op, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {return __c11_atomic_fetch_sub(&this->__a_, __op, __m);} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator++(int) volatile _NOEXCEPT {return fetch_add(1);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator++(int) _NOEXCEPT {return fetch_add(1);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator--(int) volatile _NOEXCEPT {return fetch_sub(1);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator--(int) _NOEXCEPT {return fetch_sub(1);} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator++() volatile _NOEXCEPT {return fetch_add(1) + 1;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator++() _NOEXCEPT {return fetch_add(1) + 1;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator--() volatile _NOEXCEPT {return fetch_sub(1) - 1;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator--() _NOEXCEPT {return fetch_sub(1) - 1;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator+=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator+=(ptrdiff_t __op) _NOEXCEPT {return fetch_add(__op) + __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator-=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;} |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* operator-=(ptrdiff_t __op) _NOEXCEPT {return fetch_sub(__op) - __op;} |
| }; |
| |
| // atomic_is_lock_free |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_is_lock_free(const volatile atomic<_Tp>* __o) _NOEXCEPT |
| { |
| return __o->is_lock_free(); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_is_lock_free(const atomic<_Tp>* __o) _NOEXCEPT |
| { |
| return __o->is_lock_free(); |
| } |
| |
| // atomic_init |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_init(volatile atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
| { |
| __c11_atomic_init(&__o->__a_, __d); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_init(atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
| { |
| __c11_atomic_init(&__o->__a_, __d); |
| } |
| |
| // atomic_store |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_store(volatile atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
| { |
| __o->store(__d); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_store(atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
| { |
| __o->store(__d); |
| } |
| |
| // atomic_store_explicit |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_store_explicit(volatile atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT |
| _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) |
| { |
| __o->store(__d, __m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_store_explicit(atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT |
| _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) |
| { |
| __o->store(__d, __m); |
| } |
| |
| // atomic_load |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp |
| atomic_load(const volatile atomic<_Tp>* __o) _NOEXCEPT |
| { |
| return __o->load(); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp |
| atomic_load(const atomic<_Tp>* __o) _NOEXCEPT |
| { |
| return __o->load(); |
| } |
| |
| // atomic_load_explicit |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp |
| atomic_load_explicit(const volatile atomic<_Tp>* __o, memory_order __m) _NOEXCEPT |
| _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) |
| { |
| return __o->load(__m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp |
| atomic_load_explicit(const atomic<_Tp>* __o, memory_order __m) _NOEXCEPT |
| _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) |
| { |
| return __o->load(__m); |
| } |
| |
| // atomic_exchange |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp |
| atomic_exchange(volatile atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
| { |
| return __o->exchange(__d); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp |
| atomic_exchange(atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
| { |
| return __o->exchange(__d); |
| } |
| |
| // atomic_exchange_explicit |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp |
| atomic_exchange_explicit(volatile atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT |
| { |
| return __o->exchange(__d, __m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp |
| atomic_exchange_explicit(atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT |
| { |
| return __o->exchange(__d, __m); |
| } |
| |
| // atomic_compare_exchange_weak |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_compare_exchange_weak(volatile atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT |
| { |
| return __o->compare_exchange_weak(*__e, __d); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_compare_exchange_weak(atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT |
| { |
| return __o->compare_exchange_weak(*__e, __d); |
| } |
| |
| // atomic_compare_exchange_strong |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_compare_exchange_strong(volatile atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT |
| { |
| return __o->compare_exchange_strong(*__e, __d); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_compare_exchange_strong(atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT |
| { |
| return __o->compare_exchange_strong(*__e, __d); |
| } |
| |
| // atomic_compare_exchange_weak_explicit |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_compare_exchange_weak_explicit(volatile atomic<_Tp>* __o, _Tp* __e, |
| _Tp __d, |
| memory_order __s, memory_order __f) _NOEXCEPT |
| _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
| { |
| return __o->compare_exchange_weak(*__e, __d, __s, __f); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_compare_exchange_weak_explicit(atomic<_Tp>* __o, _Tp* __e, _Tp __d, |
| memory_order __s, memory_order __f) _NOEXCEPT |
| _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
| { |
| return __o->compare_exchange_weak(*__e, __d, __s, __f); |
| } |
| |
| // atomic_compare_exchange_strong_explicit |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_compare_exchange_strong_explicit(volatile atomic<_Tp>* __o, |
| _Tp* __e, _Tp __d, |
| memory_order __s, memory_order __f) _NOEXCEPT |
| _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
| { |
| return __o->compare_exchange_strong(*__e, __d, __s, __f); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_compare_exchange_strong_explicit(atomic<_Tp>* __o, _Tp* __e, |
| _Tp __d, |
| memory_order __s, memory_order __f) _NOEXCEPT |
| _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
| { |
| return __o->compare_exchange_strong(*__e, __d, __s, __f); |
| } |
| |
| // atomic_fetch_add |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_add(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
| { |
| return __o->fetch_add(__op); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_add(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
| { |
| return __o->fetch_add(__op); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp* |
| atomic_fetch_add(volatile atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT |
| { |
| return __o->fetch_add(__op); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp* |
| atomic_fetch_add(atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT |
| { |
| return __o->fetch_add(__op); |
| } |
| |
| // atomic_fetch_add_explicit |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_add_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_add(__op, __m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_add_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_add(__op, __m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp* |
| atomic_fetch_add_explicit(volatile atomic<_Tp*>* __o, ptrdiff_t __op, |
| memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_add(__op, __m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp* |
| atomic_fetch_add_explicit(atomic<_Tp*>* __o, ptrdiff_t __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_add(__op, __m); |
| } |
| |
| // atomic_fetch_sub |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_sub(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
| { |
| return __o->fetch_sub(__op); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_sub(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
| { |
| return __o->fetch_sub(__op); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp* |
| atomic_fetch_sub(volatile atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT |
| { |
| return __o->fetch_sub(__op); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp* |
| atomic_fetch_sub(atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT |
| { |
| return __o->fetch_sub(__op); |
| } |
| |
| // atomic_fetch_sub_explicit |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_sub_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_sub(__op, __m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_sub_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_sub(__op, __m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp* |
| atomic_fetch_sub_explicit(volatile atomic<_Tp*>* __o, ptrdiff_t __op, |
| memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_sub(__op, __m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp* |
| atomic_fetch_sub_explicit(atomic<_Tp*>* __o, ptrdiff_t __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_sub(__op, __m); |
| } |
| |
| // atomic_fetch_and |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_and(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
| { |
| return __o->fetch_and(__op); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_and(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
| { |
| return __o->fetch_and(__op); |
| } |
| |
| // atomic_fetch_and_explicit |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_and_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_and(__op, __m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_and_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_and(__op, __m); |
| } |
| |
| // atomic_fetch_or |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_or(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
| { |
| return __o->fetch_or(__op); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_or(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
| { |
| return __o->fetch_or(__op); |
| } |
| |
| // atomic_fetch_or_explicit |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_or_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_or(__op, __m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_or_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_or(__op, __m); |
| } |
| |
| // atomic_fetch_xor |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_xor(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
| { |
| return __o->fetch_xor(__op); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_xor(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
| { |
| return __o->fetch_xor(__op); |
| } |
| |
| // atomic_fetch_xor_explicit |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_xor_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_xor(__op, __m); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| _Tp |
| >::type |
| atomic_fetch_xor_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
| { |
| return __o->fetch_xor(__op, __m); |
| } |
| |
| // flag type and operations |
| |
| typedef struct atomic_flag |
| { |
| _Atomic(bool) __a_; |
| |
| _LIBCPP_INLINE_VISIBILITY |
| bool test_and_set(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
| {return __c11_atomic_exchange(&__a_, true, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool test_and_set(memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {return __c11_atomic_exchange(&__a_, true, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| void clear(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
| {__c11_atomic_store(&__a_, false, __m);} |
| _LIBCPP_INLINE_VISIBILITY |
| void clear(memory_order __m = memory_order_seq_cst) _NOEXCEPT |
| {__c11_atomic_store(&__a_, false, __m);} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| #ifndef _LIBCPP_CXX03_LANG |
| atomic_flag() _NOEXCEPT = default; |
| #else |
| atomic_flag() _NOEXCEPT : __a_() {} |
| #endif // _LIBCPP_CXX03_LANG |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR |
| atomic_flag(bool __b) _NOEXCEPT : __a_(__b) {} // EXTENSION |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| atomic_flag(const atomic_flag&) = delete; |
| atomic_flag& operator=(const atomic_flag&) = delete; |
| atomic_flag& operator=(const atomic_flag&) volatile = delete; |
| #else |
| private: |
| atomic_flag(const atomic_flag&); |
| atomic_flag& operator=(const atomic_flag&); |
| atomic_flag& operator=(const atomic_flag&) volatile; |
| #endif |
| } atomic_flag; |
| |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_flag_test_and_set(volatile atomic_flag* __o) _NOEXCEPT |
| { |
| return __o->test_and_set(); |
| } |
| |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_flag_test_and_set(atomic_flag* __o) _NOEXCEPT |
| { |
| return __o->test_and_set(); |
| } |
| |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_flag_test_and_set_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT |
| { |
| return __o->test_and_set(__m); |
| } |
| |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_flag_test_and_set_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT |
| { |
| return __o->test_and_set(__m); |
| } |
| |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_flag_clear(volatile atomic_flag* __o) _NOEXCEPT |
| { |
| __o->clear(); |
| } |
| |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_flag_clear(atomic_flag* __o) _NOEXCEPT |
| { |
| __o->clear(); |
| } |
| |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_flag_clear_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT |
| { |
| __o->clear(__m); |
| } |
| |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_flag_clear_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT |
| { |
| __o->clear(__m); |
| } |
| |
| // fences |
| |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_thread_fence(memory_order __m) _NOEXCEPT |
| { |
| __c11_atomic_thread_fence(__m); |
| } |
| |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| atomic_signal_fence(memory_order __m) _NOEXCEPT |
| { |
| __c11_atomic_signal_fence(__m); |
| } |
| |
| // Atomics for standard typedef types |
| |
| typedef atomic<bool> atomic_bool; |
| typedef atomic<char> atomic_char; |
| typedef atomic<signed char> atomic_schar; |
| typedef atomic<unsigned char> atomic_uchar; |
| typedef atomic<short> atomic_short; |
| typedef atomic<unsigned short> atomic_ushort; |
| typedef atomic<int> atomic_int; |
| typedef atomic<unsigned int> atomic_uint; |
| typedef atomic<long> atomic_long; |
| typedef atomic<unsigned long> atomic_ulong; |
| typedef atomic<long long> atomic_llong; |
| typedef atomic<unsigned long long> atomic_ullong; |
| typedef atomic<char16_t> atomic_char16_t; |
| typedef atomic<char32_t> atomic_char32_t; |
| typedef atomic<wchar_t> atomic_wchar_t; |
| |
| typedef atomic<int_least8_t> atomic_int_least8_t; |
| typedef atomic<uint_least8_t> atomic_uint_least8_t; |
| typedef atomic<int_least16_t> atomic_int_least16_t; |
| typedef atomic<uint_least16_t> atomic_uint_least16_t; |
| typedef atomic<int_least32_t> atomic_int_least32_t; |
| typedef atomic<uint_least32_t> atomic_uint_least32_t; |
| typedef atomic<int_least64_t> atomic_int_least64_t; |
| typedef atomic<uint_least64_t> atomic_uint_least64_t; |
| |
| typedef atomic<int_fast8_t> atomic_int_fast8_t; |
| typedef atomic<uint_fast8_t> atomic_uint_fast8_t; |
| typedef atomic<int_fast16_t> atomic_int_fast16_t; |
| typedef atomic<uint_fast16_t> atomic_uint_fast16_t; |
| typedef atomic<int_fast32_t> atomic_int_fast32_t; |
| typedef atomic<uint_fast32_t> atomic_uint_fast32_t; |
| typedef atomic<int_fast64_t> atomic_int_fast64_t; |
| typedef atomic<uint_fast64_t> atomic_uint_fast64_t; |
| |
| typedef atomic< int8_t> atomic_int8_t; |
| typedef atomic<uint8_t> atomic_uint8_t; |
| typedef atomic< int16_t> atomic_int16_t; |
| typedef atomic<uint16_t> atomic_uint16_t; |
| typedef atomic< int32_t> atomic_int32_t; |
| typedef atomic<uint32_t> atomic_uint32_t; |
| typedef atomic< int64_t> atomic_int64_t; |
| typedef atomic<uint64_t> atomic_uint64_t; |
| |
| typedef atomic<intptr_t> atomic_intptr_t; |
| typedef atomic<uintptr_t> atomic_uintptr_t; |
| typedef atomic<size_t> atomic_size_t; |
| typedef atomic<ptrdiff_t> atomic_ptrdiff_t; |
| typedef atomic<intmax_t> atomic_intmax_t; |
| typedef atomic<uintmax_t> atomic_uintmax_t; |
| |
| #define ATOMIC_FLAG_INIT {false} |
| #define ATOMIC_VAR_INIT(__v) {__v} |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP_ATOMIC |
