Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 1 | // -*- C++ -*- |
| 2 | //===--------------------------- atomic -----------------------------------===// |
| 3 | // |
Chandler Carruth | 7642bb1 | 2019-01-19 08:50:56 +0000 | [diff] [blame] | 4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 5 | // See https://llvm.org/LICENSE.txt for license information. |
| 6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #ifndef _LIBCPP_ATOMIC |
| 11 | #define _LIBCPP_ATOMIC |
| 12 | |
| 13 | /* |
| 14 | atomic synopsis |
| 15 | |
| 16 | namespace std |
| 17 | { |
| 18 | |
JF Bastien | fdb42c2 | 2016-03-25 15:48:21 +0000 | [diff] [blame] | 19 | // feature test macro |
| 20 | |
| 21 | #define __cpp_lib_atomic_is_always_lock_free // as specified by SG10 |
| 22 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 23 | // order and consistency |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 24 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 25 | enum memory_order: unspecified // enum class in C++20 |
| 26 | { |
| 27 | relaxed, |
| 28 | consume, // load-consume |
| 29 | acquire, // load-acquire |
| 30 | release, // store-release |
| 31 | acq_rel, // store-release load-acquire |
| 32 | seq_cst // store-release load-acquire |
| 33 | }; |
| 34 | |
| 35 | inline constexpr auto memory_order_relaxed = memory_order::relaxed; |
| 36 | inline constexpr auto memory_order_consume = memory_order::consume; |
| 37 | inline constexpr auto memory_order_acquire = memory_order::acquire; |
| 38 | inline constexpr auto memory_order_release = memory_order::release; |
| 39 | inline constexpr auto memory_order_acq_rel = memory_order::acq_rel; |
| 40 | inline constexpr auto memory_order_seq_cst = memory_order::seq_cst; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 41 | |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 42 | template <class T> T kill_dependency(T y) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 43 | |
| 44 | // lock-free property |
| 45 | |
Howard Hinnant | 931e340 | 2013-01-21 20:39:41 +0000 | [diff] [blame] | 46 | #define ATOMIC_BOOL_LOCK_FREE unspecified |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 47 | #define ATOMIC_CHAR_LOCK_FREE unspecified |
| 48 | #define ATOMIC_CHAR16_T_LOCK_FREE unspecified |
| 49 | #define ATOMIC_CHAR32_T_LOCK_FREE unspecified |
| 50 | #define ATOMIC_WCHAR_T_LOCK_FREE unspecified |
| 51 | #define ATOMIC_SHORT_LOCK_FREE unspecified |
| 52 | #define ATOMIC_INT_LOCK_FREE unspecified |
| 53 | #define ATOMIC_LONG_LOCK_FREE unspecified |
| 54 | #define ATOMIC_LLONG_LOCK_FREE unspecified |
Howard Hinnant | 931e340 | 2013-01-21 20:39:41 +0000 | [diff] [blame] | 55 | #define ATOMIC_POINTER_LOCK_FREE unspecified |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 56 | |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 57 | // flag type and operations |
| 58 | |
| 59 | typedef struct atomic_flag |
| 60 | { |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 61 | bool test_and_set(memory_order m = memory_order_seq_cst) volatile noexcept; |
| 62 | bool test_and_set(memory_order m = memory_order_seq_cst) noexcept; |
| 63 | void clear(memory_order m = memory_order_seq_cst) volatile noexcept; |
| 64 | void clear(memory_order m = memory_order_seq_cst) noexcept; |
| 65 | atomic_flag() noexcept = default; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 66 | atomic_flag(const atomic_flag&) = delete; |
| 67 | atomic_flag& operator=(const atomic_flag&) = delete; |
| 68 | atomic_flag& operator=(const atomic_flag&) volatile = delete; |
| 69 | } atomic_flag; |
| 70 | |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 71 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 72 | atomic_flag_test_and_set(volatile atomic_flag* obj) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 73 | |
| 74 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 75 | atomic_flag_test_and_set(atomic_flag* obj) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 76 | |
| 77 | bool |
| 78 | atomic_flag_test_and_set_explicit(volatile atomic_flag* obj, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 79 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 80 | |
| 81 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 82 | atomic_flag_test_and_set_explicit(atomic_flag* obj, memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 83 | |
| 84 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 85 | atomic_flag_clear(volatile atomic_flag* obj) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 86 | |
| 87 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 88 | atomic_flag_clear(atomic_flag* obj) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 89 | |
| 90 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 91 | atomic_flag_clear_explicit(volatile atomic_flag* obj, memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 92 | |
| 93 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 94 | atomic_flag_clear_explicit(atomic_flag* obj, memory_order m) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 95 | |
| 96 | #define ATOMIC_FLAG_INIT see below |
Howard Hinnant | 493d1d9 | 2010-10-19 16:51:18 +0000 | [diff] [blame] | 97 | #define ATOMIC_VAR_INIT(value) see below |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 98 | |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 99 | template <class T> |
| 100 | struct atomic |
| 101 | { |
JF Bastien | fdb42c2 | 2016-03-25 15:48:21 +0000 | [diff] [blame] | 102 | static constexpr bool is_always_lock_free; |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 103 | bool is_lock_free() const volatile noexcept; |
| 104 | bool is_lock_free() const noexcept; |
| 105 | void store(T desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 106 | void store(T desr, memory_order m = memory_order_seq_cst) noexcept; |
| 107 | T load(memory_order m = memory_order_seq_cst) const volatile noexcept; |
| 108 | T load(memory_order m = memory_order_seq_cst) const noexcept; |
| 109 | operator T() const volatile noexcept; |
| 110 | operator T() const noexcept; |
| 111 | T exchange(T desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 112 | T exchange(T desr, memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 113 | bool compare_exchange_weak(T& expc, T desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 114 | memory_order s, memory_order f) volatile noexcept; |
| 115 | bool compare_exchange_weak(T& expc, T desr, memory_order s, memory_order f) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 116 | bool compare_exchange_strong(T& expc, T desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 117 | memory_order s, memory_order f) volatile noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 118 | bool compare_exchange_strong(T& expc, T desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 119 | memory_order s, memory_order f) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 120 | bool compare_exchange_weak(T& expc, T desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 121 | memory_order m = memory_order_seq_cst) volatile noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 122 | bool compare_exchange_weak(T& expc, T desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 123 | memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 124 | bool compare_exchange_strong(T& expc, T desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 125 | memory_order m = memory_order_seq_cst) volatile noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 126 | bool compare_exchange_strong(T& expc, T desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 127 | memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 128 | |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 129 | atomic() noexcept = default; |
| 130 | constexpr atomic(T desr) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 131 | atomic(const atomic&) = delete; |
| 132 | atomic& operator=(const atomic&) = delete; |
| 133 | atomic& operator=(const atomic&) volatile = delete; |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 134 | T operator=(T) volatile noexcept; |
| 135 | T operator=(T) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 136 | }; |
| 137 | |
| 138 | template <> |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 139 | struct atomic<integral> |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 140 | { |
JF Bastien | fdb42c2 | 2016-03-25 15:48:21 +0000 | [diff] [blame] | 141 | static constexpr bool is_always_lock_free; |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 142 | bool is_lock_free() const volatile noexcept; |
| 143 | bool is_lock_free() const noexcept; |
| 144 | void store(integral desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 145 | void store(integral desr, memory_order m = memory_order_seq_cst) noexcept; |
| 146 | integral load(memory_order m = memory_order_seq_cst) const volatile noexcept; |
| 147 | integral load(memory_order m = memory_order_seq_cst) const noexcept; |
| 148 | operator integral() const volatile noexcept; |
| 149 | operator integral() const noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 150 | integral exchange(integral desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 151 | memory_order m = memory_order_seq_cst) volatile noexcept; |
| 152 | integral exchange(integral desr, memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 153 | bool compare_exchange_weak(integral& expc, integral desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 154 | memory_order s, memory_order f) volatile noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 155 | bool compare_exchange_weak(integral& expc, integral desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 156 | memory_order s, memory_order f) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 157 | bool compare_exchange_strong(integral& expc, integral desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 158 | memory_order s, memory_order f) volatile noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 159 | bool compare_exchange_strong(integral& expc, integral desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 160 | memory_order s, memory_order f) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 161 | bool compare_exchange_weak(integral& expc, integral desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 162 | memory_order m = memory_order_seq_cst) volatile noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 163 | bool compare_exchange_weak(integral& expc, integral desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 164 | memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 165 | bool compare_exchange_strong(integral& expc, integral desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 166 | memory_order m = memory_order_seq_cst) volatile noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 167 | bool compare_exchange_strong(integral& expc, integral desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 168 | memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 169 | |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 170 | integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 171 | fetch_add(integral op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 172 | integral fetch_add(integral op, memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 173 | integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 174 | fetch_sub(integral op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 175 | integral fetch_sub(integral op, memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 176 | integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 177 | fetch_and(integral op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 178 | integral fetch_and(integral op, memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 179 | integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 180 | fetch_or(integral op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 181 | integral fetch_or(integral op, memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 182 | integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 183 | fetch_xor(integral op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 184 | integral fetch_xor(integral op, memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 185 | |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 186 | atomic() noexcept = default; |
| 187 | constexpr atomic(integral desr) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 188 | atomic(const atomic&) = delete; |
| 189 | atomic& operator=(const atomic&) = delete; |
| 190 | atomic& operator=(const atomic&) volatile = delete; |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 191 | integral operator=(integral desr) volatile noexcept; |
| 192 | integral operator=(integral desr) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 193 | |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 194 | integral operator++(int) volatile noexcept; |
| 195 | integral operator++(int) noexcept; |
| 196 | integral operator--(int) volatile noexcept; |
| 197 | integral operator--(int) noexcept; |
| 198 | integral operator++() volatile noexcept; |
| 199 | integral operator++() noexcept; |
| 200 | integral operator--() volatile noexcept; |
| 201 | integral operator--() noexcept; |
| 202 | integral operator+=(integral op) volatile noexcept; |
| 203 | integral operator+=(integral op) noexcept; |
| 204 | integral operator-=(integral op) volatile noexcept; |
| 205 | integral operator-=(integral op) noexcept; |
| 206 | integral operator&=(integral op) volatile noexcept; |
| 207 | integral operator&=(integral op) noexcept; |
| 208 | integral operator|=(integral op) volatile noexcept; |
| 209 | integral operator|=(integral op) noexcept; |
| 210 | integral operator^=(integral op) volatile noexcept; |
| 211 | integral operator^=(integral op) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 212 | }; |
| 213 | |
| 214 | template <class T> |
| 215 | struct atomic<T*> |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 216 | { |
JF Bastien | fdb42c2 | 2016-03-25 15:48:21 +0000 | [diff] [blame] | 217 | static constexpr bool is_always_lock_free; |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 218 | bool is_lock_free() const volatile noexcept; |
| 219 | bool is_lock_free() const noexcept; |
| 220 | void store(T* desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 221 | void store(T* desr, memory_order m = memory_order_seq_cst) noexcept; |
| 222 | T* load(memory_order m = memory_order_seq_cst) const volatile noexcept; |
| 223 | T* load(memory_order m = memory_order_seq_cst) const noexcept; |
| 224 | operator T*() const volatile noexcept; |
| 225 | operator T*() const noexcept; |
| 226 | T* exchange(T* desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 227 | T* exchange(T* desr, memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 228 | bool compare_exchange_weak(T*& expc, T* desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 229 | memory_order s, memory_order f) volatile noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 230 | bool compare_exchange_weak(T*& expc, T* desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 231 | memory_order s, memory_order f) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 232 | bool compare_exchange_strong(T*& expc, T* desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 233 | memory_order s, memory_order f) volatile noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 234 | bool compare_exchange_strong(T*& expc, T* desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 235 | memory_order s, memory_order f) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 236 | bool compare_exchange_weak(T*& expc, T* desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 237 | memory_order m = memory_order_seq_cst) volatile noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 238 | bool compare_exchange_weak(T*& expc, T* desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 239 | memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 240 | bool compare_exchange_strong(T*& expc, T* desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 241 | memory_order m = memory_order_seq_cst) volatile noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 242 | bool compare_exchange_strong(T*& expc, T* desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 243 | memory_order m = memory_order_seq_cst) noexcept; |
| 244 | T* fetch_add(ptrdiff_t op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 245 | T* fetch_add(ptrdiff_t op, memory_order m = memory_order_seq_cst) noexcept; |
| 246 | T* fetch_sub(ptrdiff_t op, memory_order m = memory_order_seq_cst) volatile noexcept; |
| 247 | T* fetch_sub(ptrdiff_t op, memory_order m = memory_order_seq_cst) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 248 | |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 249 | atomic() noexcept = default; |
| 250 | constexpr atomic(T* desr) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 251 | atomic(const atomic&) = delete; |
| 252 | atomic& operator=(const atomic&) = delete; |
| 253 | atomic& operator=(const atomic&) volatile = delete; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 254 | |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 255 | T* operator=(T*) volatile noexcept; |
| 256 | T* operator=(T*) noexcept; |
| 257 | T* operator++(int) volatile noexcept; |
| 258 | T* operator++(int) noexcept; |
| 259 | T* operator--(int) volatile noexcept; |
| 260 | T* operator--(int) noexcept; |
| 261 | T* operator++() volatile noexcept; |
| 262 | T* operator++() noexcept; |
| 263 | T* operator--() volatile noexcept; |
| 264 | T* operator--() noexcept; |
| 265 | T* operator+=(ptrdiff_t op) volatile noexcept; |
| 266 | T* operator+=(ptrdiff_t op) noexcept; |
| 267 | T* operator-=(ptrdiff_t op) volatile noexcept; |
| 268 | T* operator-=(ptrdiff_t op) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 269 | }; |
| 270 | |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 271 | |
| 272 | template <class T> |
| 273 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 274 | atomic_is_lock_free(const volatile atomic<T>* obj) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 275 | |
| 276 | template <class T> |
| 277 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 278 | atomic_is_lock_free(const atomic<T>* obj) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 279 | |
| 280 | template <class T> |
| 281 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 282 | atomic_init(volatile atomic<T>* obj, T desr) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 283 | |
| 284 | template <class T> |
| 285 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 286 | atomic_init(atomic<T>* obj, T desr) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 287 | |
| 288 | template <class T> |
| 289 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 290 | atomic_store(volatile atomic<T>* obj, T desr) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 291 | |
| 292 | template <class T> |
| 293 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 294 | atomic_store(atomic<T>* obj, T desr) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 295 | |
| 296 | template <class T> |
| 297 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 298 | atomic_store_explicit(volatile atomic<T>* obj, T desr, memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 299 | |
| 300 | template <class T> |
| 301 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 302 | atomic_store_explicit(atomic<T>* obj, T desr, memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 303 | |
| 304 | template <class T> |
| 305 | T |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 306 | atomic_load(const volatile atomic<T>* obj) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 307 | |
| 308 | template <class T> |
| 309 | T |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 310 | atomic_load(const atomic<T>* obj) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 311 | |
| 312 | template <class T> |
| 313 | T |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 314 | atomic_load_explicit(const volatile atomic<T>* obj, memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 315 | |
| 316 | template <class T> |
| 317 | T |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 318 | atomic_load_explicit(const atomic<T>* obj, memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 319 | |
| 320 | template <class T> |
| 321 | T |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 322 | atomic_exchange(volatile atomic<T>* obj, T desr) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 323 | |
| 324 | template <class T> |
| 325 | T |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 326 | atomic_exchange(atomic<T>* obj, T desr) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 327 | |
| 328 | template <class T> |
| 329 | T |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 330 | atomic_exchange_explicit(volatile atomic<T>* obj, T desr, memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 331 | |
| 332 | template <class T> |
| 333 | T |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 334 | atomic_exchange_explicit(atomic<T>* obj, T desr, memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 335 | |
| 336 | template <class T> |
| 337 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 338 | atomic_compare_exchange_weak(volatile atomic<T>* obj, T* expc, T desr) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 339 | |
| 340 | template <class T> |
| 341 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 342 | atomic_compare_exchange_weak(atomic<T>* obj, T* expc, T desr) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 343 | |
| 344 | template <class T> |
| 345 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 346 | atomic_compare_exchange_strong(volatile atomic<T>* obj, T* expc, T desr) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 347 | |
| 348 | template <class T> |
| 349 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 350 | atomic_compare_exchange_strong(atomic<T>* obj, T* expc, T desr) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 351 | |
| 352 | template <class T> |
| 353 | bool |
| 354 | atomic_compare_exchange_weak_explicit(volatile atomic<T>* obj, T* expc, |
| 355 | T desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 356 | memory_order s, memory_order f) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 357 | |
| 358 | template <class T> |
| 359 | bool |
| 360 | atomic_compare_exchange_weak_explicit(atomic<T>* obj, T* expc, T desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 361 | memory_order s, memory_order f) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 362 | |
| 363 | template <class T> |
| 364 | bool |
| 365 | atomic_compare_exchange_strong_explicit(volatile atomic<T>* obj, |
| 366 | T* expc, T desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 367 | memory_order s, memory_order f) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 368 | |
| 369 | template <class T> |
| 370 | bool |
| 371 | atomic_compare_exchange_strong_explicit(atomic<T>* obj, T* expc, |
| 372 | T desr, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 373 | memory_order s, memory_order f) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 374 | |
| 375 | template <class Integral> |
| 376 | Integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 377 | atomic_fetch_add(volatile atomic<Integral>* obj, Integral op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 378 | |
| 379 | template <class Integral> |
| 380 | Integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 381 | atomic_fetch_add(atomic<Integral>* obj, Integral op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 382 | |
| 383 | template <class Integral> |
| 384 | Integral |
| 385 | atomic_fetch_add_explicit(volatile atomic<Integral>* obj, Integral op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 386 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 387 | template <class Integral> |
| 388 | Integral |
| 389 | atomic_fetch_add_explicit(atomic<Integral>* obj, Integral op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 390 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 391 | template <class Integral> |
| 392 | Integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 393 | atomic_fetch_sub(volatile atomic<Integral>* obj, Integral op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 394 | |
| 395 | template <class Integral> |
| 396 | Integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 397 | atomic_fetch_sub(atomic<Integral>* obj, Integral op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 398 | |
| 399 | template <class Integral> |
| 400 | Integral |
| 401 | atomic_fetch_sub_explicit(volatile atomic<Integral>* obj, Integral op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 402 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 403 | template <class Integral> |
| 404 | Integral |
| 405 | atomic_fetch_sub_explicit(atomic<Integral>* obj, Integral op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 406 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 407 | template <class Integral> |
| 408 | Integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 409 | atomic_fetch_and(volatile atomic<Integral>* obj, Integral op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 410 | |
| 411 | template <class Integral> |
| 412 | Integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 413 | atomic_fetch_and(atomic<Integral>* obj, Integral op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 414 | |
| 415 | template <class Integral> |
| 416 | Integral |
| 417 | atomic_fetch_and_explicit(volatile atomic<Integral>* obj, Integral op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 418 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 419 | template <class Integral> |
| 420 | Integral |
| 421 | atomic_fetch_and_explicit(atomic<Integral>* obj, Integral op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 422 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 423 | template <class Integral> |
| 424 | Integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 425 | atomic_fetch_or(volatile atomic<Integral>* obj, Integral op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 426 | |
| 427 | template <class Integral> |
| 428 | Integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 429 | atomic_fetch_or(atomic<Integral>* obj, Integral op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 430 | |
| 431 | template <class Integral> |
| 432 | Integral |
| 433 | atomic_fetch_or_explicit(volatile atomic<Integral>* obj, Integral op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 434 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 435 | template <class Integral> |
| 436 | Integral |
| 437 | atomic_fetch_or_explicit(atomic<Integral>* obj, Integral op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 438 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 439 | template <class Integral> |
| 440 | Integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 441 | atomic_fetch_xor(volatile atomic<Integral>* obj, Integral op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 442 | |
| 443 | template <class Integral> |
| 444 | Integral |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 445 | atomic_fetch_xor(atomic<Integral>* obj, Integral op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 446 | |
| 447 | template <class Integral> |
| 448 | Integral |
| 449 | atomic_fetch_xor_explicit(volatile atomic<Integral>* obj, Integral op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 450 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 451 | template <class Integral> |
| 452 | Integral |
| 453 | atomic_fetch_xor_explicit(atomic<Integral>* obj, Integral op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 454 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 455 | |
| 456 | template <class T> |
| 457 | T* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 458 | atomic_fetch_add(volatile atomic<T*>* obj, ptrdiff_t op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 459 | |
| 460 | template <class T> |
| 461 | T* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 462 | atomic_fetch_add(atomic<T*>* obj, ptrdiff_t op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 463 | |
| 464 | template <class T> |
| 465 | T* |
| 466 | atomic_fetch_add_explicit(volatile atomic<T*>* obj, ptrdiff_t op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 467 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 468 | template <class T> |
| 469 | T* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 470 | atomic_fetch_add_explicit(atomic<T*>* obj, ptrdiff_t op, memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 471 | |
| 472 | template <class T> |
| 473 | T* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 474 | atomic_fetch_sub(volatile atomic<T*>* obj, ptrdiff_t op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 475 | |
| 476 | template <class T> |
| 477 | T* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 478 | atomic_fetch_sub(atomic<T*>* obj, ptrdiff_t op) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 479 | |
| 480 | template <class T> |
| 481 | T* |
| 482 | atomic_fetch_sub_explicit(volatile atomic<T*>* obj, ptrdiff_t op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 483 | memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 484 | template <class T> |
| 485 | T* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 486 | atomic_fetch_sub_explicit(atomic<T*>* obj, ptrdiff_t op, memory_order m) noexcept; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 487 | |
| 488 | // Atomics for standard typedef types |
| 489 | |
Howard Hinnant | f0af8d9 | 2013-01-04 18:58:50 +0000 | [diff] [blame] | 490 | typedef atomic<bool> atomic_bool; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 491 | typedef atomic<char> atomic_char; |
| 492 | typedef atomic<signed char> atomic_schar; |
| 493 | typedef atomic<unsigned char> atomic_uchar; |
| 494 | typedef atomic<short> atomic_short; |
| 495 | typedef atomic<unsigned short> atomic_ushort; |
| 496 | typedef atomic<int> atomic_int; |
| 497 | typedef atomic<unsigned int> atomic_uint; |
| 498 | typedef atomic<long> atomic_long; |
| 499 | typedef atomic<unsigned long> atomic_ulong; |
| 500 | typedef atomic<long long> atomic_llong; |
| 501 | typedef atomic<unsigned long long> atomic_ullong; |
| 502 | typedef atomic<char16_t> atomic_char16_t; |
| 503 | typedef atomic<char32_t> atomic_char32_t; |
| 504 | typedef atomic<wchar_t> atomic_wchar_t; |
| 505 | |
| 506 | typedef atomic<int_least8_t> atomic_int_least8_t; |
| 507 | typedef atomic<uint_least8_t> atomic_uint_least8_t; |
| 508 | typedef atomic<int_least16_t> atomic_int_least16_t; |
| 509 | typedef atomic<uint_least16_t> atomic_uint_least16_t; |
| 510 | typedef atomic<int_least32_t> atomic_int_least32_t; |
| 511 | typedef atomic<uint_least32_t> atomic_uint_least32_t; |
| 512 | typedef atomic<int_least64_t> atomic_int_least64_t; |
| 513 | typedef atomic<uint_least64_t> atomic_uint_least64_t; |
| 514 | |
| 515 | typedef atomic<int_fast8_t> atomic_int_fast8_t; |
| 516 | typedef atomic<uint_fast8_t> atomic_uint_fast8_t; |
| 517 | typedef atomic<int_fast16_t> atomic_int_fast16_t; |
| 518 | typedef atomic<uint_fast16_t> atomic_uint_fast16_t; |
| 519 | typedef atomic<int_fast32_t> atomic_int_fast32_t; |
| 520 | typedef atomic<uint_fast32_t> atomic_uint_fast32_t; |
| 521 | typedef atomic<int_fast64_t> atomic_int_fast64_t; |
| 522 | typedef atomic<uint_fast64_t> atomic_uint_fast64_t; |
| 523 | |
Marshall Clow | f710afc | 2016-06-30 15:28:38 +0000 | [diff] [blame] | 524 | typedef atomic<int8_t> atomic_int8_t; |
| 525 | typedef atomic<uint8_t> atomic_uint8_t; |
| 526 | typedef atomic<int16_t> atomic_int16_t; |
| 527 | typedef atomic<uint16_t> atomic_uint16_t; |
| 528 | typedef atomic<int32_t> atomic_int32_t; |
| 529 | typedef atomic<uint32_t> atomic_uint32_t; |
| 530 | typedef atomic<int64_t> atomic_int64_t; |
| 531 | typedef atomic<uint64_t> atomic_uint64_t; |
| 532 | |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 533 | typedef atomic<intptr_t> atomic_intptr_t; |
| 534 | typedef atomic<uintptr_t> atomic_uintptr_t; |
| 535 | typedef atomic<size_t> atomic_size_t; |
| 536 | typedef atomic<ptrdiff_t> atomic_ptrdiff_t; |
| 537 | typedef atomic<intmax_t> atomic_intmax_t; |
| 538 | typedef atomic<uintmax_t> atomic_uintmax_t; |
| 539 | |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 540 | // fences |
| 541 | |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 542 | void atomic_thread_fence(memory_order m) noexcept; |
| 543 | void atomic_signal_fence(memory_order m) noexcept; |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 544 | |
| 545 | } // std |
| 546 | |
| 547 | */ |
| 548 | |
| 549 | #include <__config> |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 550 | #include <cstddef> |
| 551 | #include <cstdint> |
| 552 | #include <type_traits> |
Marshall Clow | 0a1e750 | 2018-09-12 19:41:40 +0000 | [diff] [blame] | 553 | #include <version> |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 554 | |
Howard Hinnant | aaaa52b | 2011-10-17 20:05:10 +0000 | [diff] [blame] | 555 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 556 | #pragma GCC system_header |
Howard Hinnant | aaaa52b | 2011-10-17 20:05:10 +0000 | [diff] [blame] | 557 | #endif |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 558 | |
Jonathan Roelofs | 39cb6bf | 2014-09-05 19:45:05 +0000 | [diff] [blame] | 559 | #ifdef _LIBCPP_HAS_NO_THREADS |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 560 | # error <atomic> is not supported on this single threaded system |
Eric Fiselier | 8020b6c | 2015-08-19 17:21:46 +0000 | [diff] [blame] | 561 | #endif |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 562 | #ifdef _LIBCPP_HAS_NO_ATOMIC_HEADER |
| 563 | # error <atomic> is not implemented |
Eric Fiselier | 8020b6c | 2015-08-19 17:21:46 +0000 | [diff] [blame] | 564 | #endif |
Volodymyr Sapsai | f3ed1fd | 2018-05-15 22:38:31 +0000 | [diff] [blame] | 565 | #ifdef kill_dependency |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 566 | # error C++ standard library is incompatible with <stdatomic.h> |
Volodymyr Sapsai | f3ed1fd | 2018-05-15 22:38:31 +0000 | [diff] [blame] | 567 | #endif |
Jonathan Roelofs | 39cb6bf | 2014-09-05 19:45:05 +0000 | [diff] [blame] | 568 | |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 569 | #define _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) \ |
| 570 | _LIBCPP_DIAGNOSE_WARNING(__m == memory_order_consume || \ |
| 571 | __m == memory_order_acquire || \ |
| 572 | __m == memory_order_acq_rel, \ |
| 573 | "memory order argument to atomic operation is invalid") |
| 574 | |
| 575 | #define _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) \ |
| 576 | _LIBCPP_DIAGNOSE_WARNING(__m == memory_order_release || \ |
| 577 | __m == memory_order_acq_rel, \ |
| 578 | "memory order argument to atomic operation is invalid") |
| 579 | |
| 580 | #define _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__m, __f) \ |
| 581 | _LIBCPP_DIAGNOSE_WARNING(__f == memory_order_release || \ |
| 582 | __f == memory_order_acq_rel, \ |
| 583 | "memory order argument to atomic operation is invalid") |
| 584 | |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 585 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 586 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 587 | #if _LIBCPP_STD_VER > 17 |
| 588 | |
Louis Dionne | 66af060 | 2019-03-06 17:07:24 +0000 | [diff] [blame] | 589 | enum class memory_order { |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 590 | relaxed, consume, acquire, release, acq_rel, seq_cst |
| 591 | }; |
| 592 | |
| 593 | inline constexpr auto memory_order_relaxed = memory_order::relaxed; |
| 594 | inline constexpr auto memory_order_consume = memory_order::consume; |
| 595 | inline constexpr auto memory_order_acquire = memory_order::acquire; |
| 596 | inline constexpr auto memory_order_release = memory_order::release; |
| 597 | inline constexpr auto memory_order_acq_rel = memory_order::acq_rel; |
| 598 | inline constexpr auto memory_order_seq_cst = memory_order::seq_cst; |
| 599 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 600 | #else |
| 601 | |
| 602 | typedef enum memory_order { |
| 603 | memory_order_relaxed, memory_order_consume, memory_order_acquire, |
| 604 | memory_order_release, memory_order_acq_rel, memory_order_seq_cst |
Howard Hinnant | dca6e71 | 2010-09-28 17:13:38 +0000 | [diff] [blame] | 605 | } memory_order; |
| 606 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 607 | #endif // _LIBCPP_STD_VER > 17 |
| 608 | |
Louis Dionne | 66af060 | 2019-03-06 17:07:24 +0000 | [diff] [blame] | 609 | typedef underlying_type<memory_order>::type __memory_order_underlying_t; |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 610 | |
| 611 | |
| 612 | #if defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) || \ |
| 613 | defined(_LIBCPP_ATOMIC_ONLY_USE_BUILTINS) |
| 614 | |
| 615 | // [atomics.types.generic]p1 guarantees _Tp is trivially copyable. Because |
| 616 | // the default operator= in an object is not volatile, a byte-by-byte copy |
| 617 | // is required. |
| 618 | template <typename _Tp, typename _Tv> _LIBCPP_INLINE_VISIBILITY |
| 619 | typename enable_if<is_assignable<_Tp&, _Tv>::value>::type |
| 620 | __cxx_atomic_assign_volatile(_Tp& __a_value, _Tv const& __val) { |
| 621 | __a_value = __val; |
| 622 | } |
| 623 | template <typename _Tp, typename _Tv> _LIBCPP_INLINE_VISIBILITY |
| 624 | typename enable_if<is_assignable<_Tp&, _Tv>::value>::type |
| 625 | __cxx_atomic_assign_volatile(_Tp volatile& __a_value, _Tv volatile const& __val) { |
| 626 | volatile char* __to = reinterpret_cast<volatile char*>(&__a_value); |
| 627 | volatile char* __end = __to + sizeof(_Tp); |
| 628 | volatile const char* __from = reinterpret_cast<volatile const char*>(&__val); |
| 629 | while (__to != __end) |
| 630 | *__to++ = *__from++; |
| 631 | } |
| 632 | |
Davide Italiano | 31f218a | 2019-03-05 17:38:33 +0000 | [diff] [blame] | 633 | #endif |
Louis Dionne | a1ae003 | 2019-03-04 15:26:27 +0000 | [diff] [blame] | 634 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 635 | #if defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) |
| 636 | |
| 637 | template <typename _Tp> |
| 638 | struct __cxx_atomic_base_impl { |
| 639 | |
Eric Fiselier | 684aaca | 2015-10-14 08:36:22 +0000 | [diff] [blame] | 640 | _LIBCPP_INLINE_VISIBILITY |
Eric Fiselier | 07b2b55 | 2016-11-18 06:42:17 +0000 | [diff] [blame] | 641 | #ifndef _LIBCPP_CXX03_LANG |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 642 | __cxx_atomic_base_impl() _NOEXCEPT = default; |
Eric Fiselier | 684aaca | 2015-10-14 08:36:22 +0000 | [diff] [blame] | 643 | #else |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 644 | __cxx_atomic_base_impl() _NOEXCEPT : __a_value() {} |
Eric Fiselier | 07b2b55 | 2016-11-18 06:42:17 +0000 | [diff] [blame] | 645 | #endif // _LIBCPP_CXX03_LANG |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 646 | _LIBCPP_CONSTEXPR explicit __cxx_atomic_base_impl(_Tp value) _NOEXCEPT |
Eric Fiselier | 719e044 | 2015-07-14 17:50:27 +0000 | [diff] [blame] | 647 | : __a_value(value) {} |
Marshall Clow | 290eb3f | 2015-01-11 06:15:59 +0000 | [diff] [blame] | 648 | _Tp __a_value; |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 649 | }; |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 650 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 651 | _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_CONSTEXPR int __to_gcc_order(memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 652 | // Avoid switch statement to make this a constexpr. |
| 653 | return __order == memory_order_relaxed ? __ATOMIC_RELAXED: |
| 654 | (__order == memory_order_acquire ? __ATOMIC_ACQUIRE: |
| 655 | (__order == memory_order_release ? __ATOMIC_RELEASE: |
| 656 | (__order == memory_order_seq_cst ? __ATOMIC_SEQ_CST: |
| 657 | (__order == memory_order_acq_rel ? __ATOMIC_ACQ_REL: |
| 658 | __ATOMIC_CONSUME)))); |
| 659 | } |
| 660 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 661 | _LIBCPP_INLINE_VISIBILITY inline _LIBCPP_CONSTEXPR int __to_gcc_failure_order(memory_order __order) { |
Dan Albert | 48815f2 | 2015-01-06 18:39:37 +0000 | [diff] [blame] | 662 | // Avoid switch statement to make this a constexpr. |
| 663 | return __order == memory_order_relaxed ? __ATOMIC_RELAXED: |
| 664 | (__order == memory_order_acquire ? __ATOMIC_ACQUIRE: |
| 665 | (__order == memory_order_release ? __ATOMIC_RELAXED: |
| 666 | (__order == memory_order_seq_cst ? __ATOMIC_SEQ_CST: |
| 667 | (__order == memory_order_acq_rel ? __ATOMIC_ACQUIRE: |
| 668 | __ATOMIC_CONSUME)))); |
| 669 | } |
| 670 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 671 | template <typename _Tp> |
| 672 | _LIBCPP_INLINE_VISIBILITY |
| 673 | void __cxx_atomic_init(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __val) { |
| 674 | __cxx_atomic_assign_volatile(__a->__a_value, __val); |
| 675 | } |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 676 | |
| 677 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 678 | _LIBCPP_INLINE_VISIBILITY |
| 679 | void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp>* __a, _Tp __val) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 680 | __a->__a_value = __val; |
| 681 | } |
| 682 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 683 | _LIBCPP_INLINE_VISIBILITY inline |
| 684 | void __cxx_atomic_thread_fence(memory_order __order) { |
| 685 | __atomic_thread_fence(__to_gcc_order(__order)); |
| 686 | } |
| 687 | |
| 688 | _LIBCPP_INLINE_VISIBILITY inline |
| 689 | void __cxx_atomic_signal_fence(memory_order __order) { |
| 690 | __atomic_signal_fence(__to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 691 | } |
| 692 | |
| 693 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 694 | _LIBCPP_INLINE_VISIBILITY |
| 695 | void __cxx_atomic_store(volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp __val, |
| 696 | memory_order __order) { |
Dan Albert | 48815f2 | 2015-01-06 18:39:37 +0000 | [diff] [blame] | 697 | __atomic_store(&__a->__a_value, &__val, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 698 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 699 | } |
| 700 | |
| 701 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 702 | _LIBCPP_INLINE_VISIBILITY |
| 703 | void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp>* __a, _Tp __val, |
| 704 | memory_order __order) { |
| 705 | __atomic_store(&__a->__a_value, &__val, |
| 706 | __to_gcc_order(__order)); |
| 707 | } |
| 708 | |
| 709 | template <typename _Tp> |
| 710 | _LIBCPP_INLINE_VISIBILITY |
| 711 | _Tp __cxx_atomic_load(const volatile __cxx_atomic_base_impl<_Tp>* __a, |
| 712 | memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 713 | _Tp __ret; |
| 714 | __atomic_load(&__a->__a_value, &__ret, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 715 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 716 | return __ret; |
| 717 | } |
| 718 | |
| 719 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 720 | _LIBCPP_INLINE_VISIBILITY |
| 721 | _Tp __cxx_atomic_load(const __cxx_atomic_base_impl<_Tp>* __a, memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 722 | _Tp __ret; |
| 723 | __atomic_load(&__a->__a_value, &__ret, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 724 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 725 | return __ret; |
| 726 | } |
| 727 | |
| 728 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 729 | _LIBCPP_INLINE_VISIBILITY |
| 730 | _Tp __cxx_atomic_exchange(volatile __cxx_atomic_base_impl<_Tp>* __a, |
| 731 | _Tp __value, memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 732 | _Tp __ret; |
| 733 | __atomic_exchange(&__a->__a_value, &__value, &__ret, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 734 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 735 | return __ret; |
| 736 | } |
| 737 | |
| 738 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 739 | _LIBCPP_INLINE_VISIBILITY |
| 740 | _Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp>* __a, _Tp __value, |
| 741 | memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 742 | _Tp __ret; |
| 743 | __atomic_exchange(&__a->__a_value, &__value, &__ret, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 744 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 745 | return __ret; |
| 746 | } |
| 747 | |
| 748 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 749 | _LIBCPP_INLINE_VISIBILITY |
| 750 | bool __cxx_atomic_compare_exchange_strong( |
| 751 | volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, |
JF Bastien | 6e412d9 | 2018-05-26 19:44:45 +0000 | [diff] [blame] | 752 | memory_order __success, memory_order __failure) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 753 | return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, |
| 754 | false, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 755 | __to_gcc_order(__success), |
| 756 | __to_gcc_failure_order(__failure)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 757 | } |
| 758 | |
| 759 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 760 | _LIBCPP_INLINE_VISIBILITY |
| 761 | bool __cxx_atomic_compare_exchange_strong( |
| 762 | __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, memory_order __success, |
JF Bastien | 6e412d9 | 2018-05-26 19:44:45 +0000 | [diff] [blame] | 763 | memory_order __failure) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 764 | return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, |
| 765 | false, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 766 | __to_gcc_order(__success), |
| 767 | __to_gcc_failure_order(__failure)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 768 | } |
| 769 | |
| 770 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 771 | _LIBCPP_INLINE_VISIBILITY |
| 772 | bool __cxx_atomic_compare_exchange_weak( |
| 773 | volatile __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, |
JF Bastien | 6e412d9 | 2018-05-26 19:44:45 +0000 | [diff] [blame] | 774 | memory_order __success, memory_order __failure) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 775 | return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, |
| 776 | true, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 777 | __to_gcc_order(__success), |
| 778 | __to_gcc_failure_order(__failure)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 779 | } |
| 780 | |
| 781 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 782 | _LIBCPP_INLINE_VISIBILITY |
| 783 | bool __cxx_atomic_compare_exchange_weak( |
| 784 | __cxx_atomic_base_impl<_Tp>* __a, _Tp* __expected, _Tp __value, memory_order __success, |
JF Bastien | 6e412d9 | 2018-05-26 19:44:45 +0000 | [diff] [blame] | 785 | memory_order __failure) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 786 | return __atomic_compare_exchange(&__a->__a_value, __expected, &__value, |
| 787 | true, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 788 | __to_gcc_order(__success), |
| 789 | __to_gcc_failure_order(__failure)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 790 | } |
| 791 | |
| 792 | template <typename _Tp> |
| 793 | struct __skip_amt { enum {value = 1}; }; |
| 794 | |
| 795 | template <typename _Tp> |
| 796 | struct __skip_amt<_Tp*> { enum {value = sizeof(_Tp)}; }; |
| 797 | |
| 798 | // FIXME: Haven't figured out what the spec says about using arrays with |
| 799 | // atomic_fetch_add. Force a failure rather than creating bad behavior. |
| 800 | template <typename _Tp> |
| 801 | struct __skip_amt<_Tp[]> { }; |
| 802 | template <typename _Tp, int n> |
| 803 | struct __skip_amt<_Tp[n]> { }; |
| 804 | |
| 805 | template <typename _Tp, typename _Td> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 806 | _LIBCPP_INLINE_VISIBILITY |
| 807 | _Tp __cxx_atomic_fetch_add(volatile __cxx_atomic_base_impl<_Tp>* __a, |
| 808 | _Td __delta, memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 809 | return __atomic_fetch_add(&__a->__a_value, __delta * __skip_amt<_Tp>::value, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 810 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 811 | } |
| 812 | |
| 813 | template <typename _Tp, typename _Td> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 814 | _LIBCPP_INLINE_VISIBILITY |
| 815 | _Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta, |
| 816 | memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 817 | return __atomic_fetch_add(&__a->__a_value, __delta * __skip_amt<_Tp>::value, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 818 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 819 | } |
| 820 | |
| 821 | template <typename _Tp, typename _Td> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 822 | _LIBCPP_INLINE_VISIBILITY |
| 823 | _Tp __cxx_atomic_fetch_sub(volatile __cxx_atomic_base_impl<_Tp>* __a, |
| 824 | _Td __delta, memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 825 | return __atomic_fetch_sub(&__a->__a_value, __delta * __skip_amt<_Tp>::value, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 826 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 827 | } |
| 828 | |
| 829 | template <typename _Tp, typename _Td> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 830 | _LIBCPP_INLINE_VISIBILITY |
| 831 | _Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp>* __a, _Td __delta, |
| 832 | memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 833 | return __atomic_fetch_sub(&__a->__a_value, __delta * __skip_amt<_Tp>::value, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 834 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 835 | } |
| 836 | |
| 837 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 838 | _LIBCPP_INLINE_VISIBILITY |
| 839 | _Tp __cxx_atomic_fetch_and(volatile __cxx_atomic_base_impl<_Tp>* __a, |
| 840 | _Tp __pattern, memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 841 | return __atomic_fetch_and(&__a->__a_value, __pattern, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 842 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 843 | } |
| 844 | |
| 845 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 846 | _LIBCPP_INLINE_VISIBILITY |
| 847 | _Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp>* __a, |
| 848 | _Tp __pattern, memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 849 | return __atomic_fetch_and(&__a->__a_value, __pattern, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 850 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 851 | } |
| 852 | |
| 853 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 854 | _LIBCPP_INLINE_VISIBILITY |
| 855 | _Tp __cxx_atomic_fetch_or(volatile __cxx_atomic_base_impl<_Tp>* __a, |
| 856 | _Tp __pattern, memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 857 | return __atomic_fetch_or(&__a->__a_value, __pattern, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 858 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 859 | } |
| 860 | |
| 861 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 862 | _LIBCPP_INLINE_VISIBILITY |
| 863 | _Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp>* __a, _Tp __pattern, |
| 864 | memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 865 | return __atomic_fetch_or(&__a->__a_value, __pattern, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 866 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 867 | } |
| 868 | |
| 869 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 870 | _LIBCPP_INLINE_VISIBILITY |
| 871 | _Tp __cxx_atomic_fetch_xor(volatile __cxx_atomic_base_impl<_Tp>* __a, |
| 872 | _Tp __pattern, memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 873 | return __atomic_fetch_xor(&__a->__a_value, __pattern, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 874 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 875 | } |
| 876 | |
| 877 | template <typename _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 878 | _LIBCPP_INLINE_VISIBILITY |
| 879 | _Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp>* __a, _Tp __pattern, |
| 880 | memory_order __order) { |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 881 | return __atomic_fetch_xor(&__a->__a_value, __pattern, |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 882 | __to_gcc_order(__order)); |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 883 | } |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 884 | |
| 885 | #define __cxx_atomic_is_lock_free(__s) __atomic_is_lock_free(__s, 0) |
| 886 | |
| 887 | #elif defined(_LIBCPP_HAS_C_ATOMIC_IMP) |
| 888 | |
| 889 | template <typename _Tp> |
| 890 | struct __cxx_atomic_base_impl { |
| 891 | |
| 892 | _LIBCPP_INLINE_VISIBILITY |
| 893 | #ifndef _LIBCPP_CXX03_LANG |
| 894 | __cxx_atomic_base_impl() _NOEXCEPT = default; |
| 895 | #else |
| 896 | __cxx_atomic_base_impl() _NOEXCEPT : __a_value() {} |
| 897 | #endif // _LIBCPP_CXX03_LANG |
| 898 | _LIBCPP_CONSTEXPR explicit __cxx_atomic_base_impl(_Tp value) _NOEXCEPT |
| 899 | : __a_value(value) {} |
| 900 | _Atomic(_Tp) __a_value; |
| 901 | }; |
| 902 | |
| 903 | #define __cxx_atomic_is_lock_free(__s) __c11_atomic_is_lock_free(__s) |
| 904 | |
| 905 | _LIBCPP_INLINE_VISIBILITY inline |
| 906 | void __cxx_atomic_thread_fence(memory_order __order) { |
| 907 | __c11_atomic_thread_fence(static_cast<__memory_order_underlying_t>(__order)); |
| 908 | } |
| 909 | |
| 910 | _LIBCPP_INLINE_VISIBILITY inline |
| 911 | void __cxx_atomic_signal_fence(memory_order __order) { |
| 912 | __c11_atomic_signal_fence(static_cast<__memory_order_underlying_t>(__order)); |
| 913 | } |
| 914 | |
| 915 | template<class _Tp> |
| 916 | _LIBCPP_INLINE_VISIBILITY |
| 917 | void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __val) { |
| 918 | __c11_atomic_init(&__a->__a_value, __val); |
| 919 | } |
| 920 | template<class _Tp> |
| 921 | _LIBCPP_INLINE_VISIBILITY |
| 922 | void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp> * __a, _Tp __val) { |
| 923 | __c11_atomic_init(&__a->__a_value, __val); |
| 924 | } |
| 925 | |
| 926 | template<class _Tp> |
| 927 | _LIBCPP_INLINE_VISIBILITY |
| 928 | void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __val, memory_order __order) { |
| 929 | __c11_atomic_store(&__a->__a_value, __val, static_cast<__memory_order_underlying_t>(__order)); |
| 930 | } |
| 931 | template<class _Tp> |
| 932 | _LIBCPP_INLINE_VISIBILITY |
| 933 | void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp> * __a, _Tp __val, memory_order __order) { |
| 934 | __c11_atomic_store(&__a->__a_value, __val, static_cast<__memory_order_underlying_t>(__order)); |
| 935 | } |
| 936 | |
| 937 | template<class _Tp> |
| 938 | _LIBCPP_INLINE_VISIBILITY |
| 939 | _Tp __cxx_atomic_load(__cxx_atomic_base_impl<_Tp> const volatile* __a, memory_order __order) { |
| 940 | using __ptr_type = typename remove_const<decltype(__a->__a_value)>::type*; |
| 941 | return __c11_atomic_load(const_cast<__ptr_type>(&__a->__a_value), static_cast<__memory_order_underlying_t>(__order)); |
| 942 | } |
| 943 | template<class _Tp> |
| 944 | _LIBCPP_INLINE_VISIBILITY |
| 945 | _Tp __cxx_atomic_load(__cxx_atomic_base_impl<_Tp> const* __a, memory_order __order) { |
| 946 | using __ptr_type = typename remove_const<decltype(__a->__a_value)>::type*; |
| 947 | return __c11_atomic_load(const_cast<__ptr_type>(&__a->__a_value), static_cast<__memory_order_underlying_t>(__order)); |
| 948 | } |
| 949 | |
| 950 | template<class _Tp> |
| 951 | _LIBCPP_INLINE_VISIBILITY |
| 952 | _Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __value, memory_order __order) { |
| 953 | return __c11_atomic_exchange(&__a->__a_value, __value, static_cast<__memory_order_underlying_t>(__order)); |
| 954 | } |
| 955 | template<class _Tp> |
| 956 | _LIBCPP_INLINE_VISIBILITY |
| 957 | _Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp> * __a, _Tp __value, memory_order __order) { |
| 958 | return __c11_atomic_exchange(&__a->__a_value, __value, static_cast<__memory_order_underlying_t>(__order)); |
| 959 | } |
| 960 | |
| 961 | template<class _Tp> |
| 962 | _LIBCPP_INLINE_VISIBILITY |
| 963 | bool __cxx_atomic_compare_exchange_strong(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) { |
| 964 | return __c11_atomic_compare_exchange_strong(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__failure)); |
| 965 | } |
| 966 | template<class _Tp> |
| 967 | _LIBCPP_INLINE_VISIBILITY |
| 968 | bool __cxx_atomic_compare_exchange_strong(__cxx_atomic_base_impl<_Tp> * __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) { |
| 969 | return __c11_atomic_compare_exchange_strong(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__failure)); |
| 970 | } |
| 971 | |
| 972 | template<class _Tp> |
| 973 | _LIBCPP_INLINE_VISIBILITY |
| 974 | bool __cxx_atomic_compare_exchange_weak(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) { |
| 975 | return __c11_atomic_compare_exchange_weak(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__failure)); |
| 976 | } |
| 977 | template<class _Tp> |
| 978 | _LIBCPP_INLINE_VISIBILITY |
| 979 | bool __cxx_atomic_compare_exchange_weak(__cxx_atomic_base_impl<_Tp> * __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) { |
| 980 | return __c11_atomic_compare_exchange_weak(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__failure)); |
| 981 | } |
| 982 | |
| 983 | template<class _Tp> |
| 984 | _LIBCPP_INLINE_VISIBILITY |
| 985 | _Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __delta, memory_order __order) { |
| 986 | return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); |
| 987 | } |
| 988 | template<class _Tp> |
| 989 | _LIBCPP_INLINE_VISIBILITY |
| 990 | _Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp> * __a, _Tp __delta, memory_order __order) { |
| 991 | return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); |
| 992 | } |
| 993 | |
| 994 | template<class _Tp> |
| 995 | _LIBCPP_INLINE_VISIBILITY |
| 996 | _Tp* __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp*> volatile* __a, ptrdiff_t __delta, memory_order __order) { |
| 997 | return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); |
| 998 | } |
| 999 | template<class _Tp> |
| 1000 | _LIBCPP_INLINE_VISIBILITY |
| 1001 | _Tp* __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp*> * __a, ptrdiff_t __delta, memory_order __order) { |
| 1002 | return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); |
| 1003 | } |
| 1004 | |
| 1005 | template<class _Tp> |
| 1006 | _LIBCPP_INLINE_VISIBILITY |
| 1007 | _Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __delta, memory_order __order) { |
| 1008 | return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); |
| 1009 | } |
| 1010 | template<class _Tp> |
| 1011 | _LIBCPP_INLINE_VISIBILITY |
| 1012 | _Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp> * __a, _Tp __delta, memory_order __order) { |
| 1013 | return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); |
| 1014 | } |
| 1015 | template<class _Tp> |
| 1016 | _LIBCPP_INLINE_VISIBILITY |
| 1017 | _Tp* __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp*> volatile* __a, ptrdiff_t __delta, memory_order __order) { |
| 1018 | return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); |
| 1019 | } |
| 1020 | template<class _Tp> |
| 1021 | _LIBCPP_INLINE_VISIBILITY |
| 1022 | _Tp* __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp*> * __a, ptrdiff_t __delta, memory_order __order) { |
| 1023 | return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order)); |
| 1024 | } |
| 1025 | |
| 1026 | template<class _Tp> |
| 1027 | _LIBCPP_INLINE_VISIBILITY |
| 1028 | _Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) { |
| 1029 | return __c11_atomic_fetch_and(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); |
| 1030 | } |
| 1031 | template<class _Tp> |
| 1032 | _LIBCPP_INLINE_VISIBILITY |
| 1033 | _Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) { |
| 1034 | return __c11_atomic_fetch_and(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); |
| 1035 | } |
| 1036 | |
| 1037 | template<class _Tp> |
| 1038 | _LIBCPP_INLINE_VISIBILITY |
| 1039 | _Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) { |
| 1040 | return __c11_atomic_fetch_or(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); |
| 1041 | } |
| 1042 | template<class _Tp> |
| 1043 | _LIBCPP_INLINE_VISIBILITY |
| 1044 | _Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) { |
| 1045 | return __c11_atomic_fetch_or(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); |
| 1046 | } |
| 1047 | |
| 1048 | template<class _Tp> |
| 1049 | _LIBCPP_INLINE_VISIBILITY |
| 1050 | _Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) { |
| 1051 | return __c11_atomic_fetch_xor(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); |
| 1052 | } |
| 1053 | template<class _Tp> |
| 1054 | _LIBCPP_INLINE_VISIBILITY |
| 1055 | _Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) { |
| 1056 | return __c11_atomic_fetch_xor(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order)); |
| 1057 | } |
| 1058 | |
| 1059 | #endif // _LIBCPP_HAS_GCC_ATOMIC_IMP, _LIBCPP_HAS_C_ATOMIC_IMP |
Dan Albert | 7b65ace | 2014-08-09 23:51:51 +0000 | [diff] [blame] | 1060 | |
Howard Hinnant | dca6e71 | 2010-09-28 17:13:38 +0000 | [diff] [blame] | 1061 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1062 | _LIBCPP_INLINE_VISIBILITY |
| 1063 | _Tp kill_dependency(_Tp __y) _NOEXCEPT |
Howard Hinnant | dca6e71 | 2010-09-28 17:13:38 +0000 | [diff] [blame] | 1064 | { |
| 1065 | return __y; |
| 1066 | } |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 1067 | |
Eric Fiselier | bed42df | 2017-04-20 23:22:46 +0000 | [diff] [blame] | 1068 | #if defined(__CLANG_ATOMIC_BOOL_LOCK_FREE) |
| 1069 | # define ATOMIC_BOOL_LOCK_FREE __CLANG_ATOMIC_BOOL_LOCK_FREE |
| 1070 | # define ATOMIC_CHAR_LOCK_FREE __CLANG_ATOMIC_CHAR_LOCK_FREE |
| 1071 | # define ATOMIC_CHAR16_T_LOCK_FREE __CLANG_ATOMIC_CHAR16_T_LOCK_FREE |
| 1072 | # define ATOMIC_CHAR32_T_LOCK_FREE __CLANG_ATOMIC_CHAR32_T_LOCK_FREE |
| 1073 | # define ATOMIC_WCHAR_T_LOCK_FREE __CLANG_ATOMIC_WCHAR_T_LOCK_FREE |
| 1074 | # define ATOMIC_SHORT_LOCK_FREE __CLANG_ATOMIC_SHORT_LOCK_FREE |
| 1075 | # define ATOMIC_INT_LOCK_FREE __CLANG_ATOMIC_INT_LOCK_FREE |
| 1076 | # define ATOMIC_LONG_LOCK_FREE __CLANG_ATOMIC_LONG_LOCK_FREE |
| 1077 | # define ATOMIC_LLONG_LOCK_FREE __CLANG_ATOMIC_LLONG_LOCK_FREE |
| 1078 | # define ATOMIC_POINTER_LOCK_FREE __CLANG_ATOMIC_POINTER_LOCK_FREE |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1079 | #elif defined(__GCC_ATOMIC_BOOL_LOCK_FREE) |
Eric Fiselier | bed42df | 2017-04-20 23:22:46 +0000 | [diff] [blame] | 1080 | # define ATOMIC_BOOL_LOCK_FREE __GCC_ATOMIC_BOOL_LOCK_FREE |
| 1081 | # define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE |
| 1082 | # define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE |
| 1083 | # define ATOMIC_CHAR32_T_LOCK_FREE __GCC_ATOMIC_CHAR32_T_LOCK_FREE |
| 1084 | # define ATOMIC_WCHAR_T_LOCK_FREE __GCC_ATOMIC_WCHAR_T_LOCK_FREE |
| 1085 | # define ATOMIC_SHORT_LOCK_FREE __GCC_ATOMIC_SHORT_LOCK_FREE |
| 1086 | # define ATOMIC_INT_LOCK_FREE __GCC_ATOMIC_INT_LOCK_FREE |
| 1087 | # define ATOMIC_LONG_LOCK_FREE __GCC_ATOMIC_LONG_LOCK_FREE |
| 1088 | # define ATOMIC_LLONG_LOCK_FREE __GCC_ATOMIC_LLONG_LOCK_FREE |
| 1089 | # define ATOMIC_POINTER_LOCK_FREE __GCC_ATOMIC_POINTER_LOCK_FREE |
| 1090 | #endif |
JF Bastien | fdb42c2 | 2016-03-25 15:48:21 +0000 | [diff] [blame] | 1091 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1092 | #ifdef _LIBCPP_ATOMIC_ONLY_USE_BUILTINS |
| 1093 | |
| 1094 | template<typename _Tp> |
| 1095 | struct __cxx_atomic_lock_impl { |
| 1096 | |
| 1097 | _LIBCPP_INLINE_VISIBILITY |
| 1098 | __cxx_atomic_lock_impl() _NOEXCEPT |
| 1099 | : __a_value(), __a_lock(0) {} |
| 1100 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR explicit |
| 1101 | __cxx_atomic_lock_impl(_Tp value) _NOEXCEPT |
| 1102 | : __a_value(value), __a_lock(0) {} |
| 1103 | |
| 1104 | _Tp __a_value; |
| 1105 | mutable __cxx_atomic_base_impl<_LIBCPP_ATOMIC_FLAG_TYPE> __a_lock; |
| 1106 | |
| 1107 | _LIBCPP_INLINE_VISIBILITY void __lock() const volatile { |
| 1108 | while(1 == __cxx_atomic_exchange(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(true), memory_order_acquire)) |
| 1109 | /*spin*/; |
| 1110 | } |
| 1111 | _LIBCPP_INLINE_VISIBILITY void __lock() const { |
| 1112 | while(1 == __cxx_atomic_exchange(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(true), memory_order_acquire)) |
| 1113 | /*spin*/; |
| 1114 | } |
| 1115 | _LIBCPP_INLINE_VISIBILITY void __unlock() const volatile { |
| 1116 | __cxx_atomic_store(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(false), memory_order_release); |
| 1117 | } |
| 1118 | _LIBCPP_INLINE_VISIBILITY void __unlock() const { |
| 1119 | __cxx_atomic_store(&__a_lock, _LIBCPP_ATOMIC_FLAG_TYPE(false), memory_order_release); |
| 1120 | } |
| 1121 | _LIBCPP_INLINE_VISIBILITY _Tp __read() const volatile { |
| 1122 | __lock(); |
| 1123 | _Tp __old; |
| 1124 | __cxx_atomic_assign_volatile(__old, __a_value); |
| 1125 | __unlock(); |
| 1126 | return __old; |
| 1127 | } |
| 1128 | _LIBCPP_INLINE_VISIBILITY _Tp __read() const { |
| 1129 | __lock(); |
| 1130 | _Tp __old = __a_value; |
| 1131 | __unlock(); |
| 1132 | return __old; |
| 1133 | } |
| 1134 | }; |
| 1135 | |
| 1136 | template <typename _Tp> |
| 1137 | _LIBCPP_INLINE_VISIBILITY |
| 1138 | void __cxx_atomic_init(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __val) { |
| 1139 | __cxx_atomic_assign_volatile(__a->__a_value, __val); |
| 1140 | } |
| 1141 | template <typename _Tp> |
| 1142 | _LIBCPP_INLINE_VISIBILITY |
| 1143 | void __cxx_atomic_init(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __val) { |
| 1144 | __a->__a_value = __val; |
| 1145 | } |
| 1146 | |
| 1147 | template <typename _Tp> |
| 1148 | _LIBCPP_INLINE_VISIBILITY |
| 1149 | void __cxx_atomic_store(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __val, memory_order) { |
| 1150 | __a->__lock(); |
| 1151 | __cxx_atomic_assign_volatile(__a->__a_value, __val); |
| 1152 | __a->__unlock(); |
| 1153 | } |
| 1154 | template <typename _Tp> |
| 1155 | _LIBCPP_INLINE_VISIBILITY |
| 1156 | void __cxx_atomic_store(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __val, memory_order) { |
| 1157 | __a->__lock(); |
| 1158 | __a->__a_value = __val; |
| 1159 | __a->__unlock(); |
| 1160 | } |
| 1161 | |
| 1162 | template <typename _Tp> |
| 1163 | _LIBCPP_INLINE_VISIBILITY |
| 1164 | _Tp __cxx_atomic_load(const volatile __cxx_atomic_lock_impl<_Tp>* __a, memory_order) { |
| 1165 | return __a->__read(); |
| 1166 | } |
| 1167 | template <typename _Tp> |
| 1168 | _LIBCPP_INLINE_VISIBILITY |
| 1169 | _Tp __cxx_atomic_load(const __cxx_atomic_lock_impl<_Tp>* __a, memory_order) { |
| 1170 | return __a->__read(); |
| 1171 | } |
| 1172 | |
| 1173 | template <typename _Tp> |
| 1174 | _LIBCPP_INLINE_VISIBILITY |
| 1175 | _Tp __cxx_atomic_exchange(volatile __cxx_atomic_lock_impl<_Tp>* __a, _Tp __value, memory_order) { |
| 1176 | __a->__lock(); |
| 1177 | _Tp __old; |
| 1178 | __cxx_atomic_assign_volatile(__old, __a->__a_value); |
| 1179 | __cxx_atomic_assign_volatile(__a->__a_value, __value); |
| 1180 | __a->__unlock(); |
| 1181 | return __old; |
| 1182 | } |
| 1183 | template <typename _Tp> |
| 1184 | _LIBCPP_INLINE_VISIBILITY |
| 1185 | _Tp __cxx_atomic_exchange(__cxx_atomic_lock_impl<_Tp>* __a, _Tp __value, memory_order) { |
| 1186 | __a->__lock(); |
| 1187 | _Tp __old = __a->__a_value; |
| 1188 | __a->__a_value = __value; |
| 1189 | __a->__unlock(); |
| 1190 | return __old; |
| 1191 | } |
| 1192 | |
| 1193 | template <typename _Tp> |
| 1194 | _LIBCPP_INLINE_VISIBILITY |
| 1195 | bool __cxx_atomic_compare_exchange_strong(volatile __cxx_atomic_lock_impl<_Tp>* __a, |
| 1196 | _Tp* __expected, _Tp __value, memory_order, memory_order) { |
| 1197 | __a->__lock(); |
| 1198 | _Tp temp; |
| 1199 | __cxx_atomic_assign_volatile(temp, __a->__a_value); |
| 1200 | bool __ret = temp == *__expected; |
| 1201 | if(__ret) |
| 1202 | __cxx_atomic_assign_volatile(__a->__a_value, __value); |
| 1203 | else |
| 1204 | __cxx_atomic_assign_volatile(*__expected, __a->__a_value); |
| 1205 | __a->__unlock(); |
| 1206 | return __ret; |
| 1207 | } |
| 1208 | template <typename _Tp> |
| 1209 | _LIBCPP_INLINE_VISIBILITY |
| 1210 | bool __cxx_atomic_compare_exchange_strong(__cxx_atomic_lock_impl<_Tp>* __a, |
| 1211 | _Tp* __expected, _Tp __value, memory_order, memory_order) { |
| 1212 | __a->__lock(); |
| 1213 | bool __ret = __a->__a_value == *__expected; |
| 1214 | if(__ret) |
| 1215 | __a->__a_value = __value; |
| 1216 | else |
| 1217 | *__expected = __a->__a_value; |
| 1218 | __a->__unlock(); |
| 1219 | return __ret; |
| 1220 | } |
| 1221 | |
| 1222 | template <typename _Tp> |
| 1223 | _LIBCPP_INLINE_VISIBILITY |
| 1224 | bool __cxx_atomic_compare_exchange_weak(volatile __cxx_atomic_lock_impl<_Tp>* __a, |
| 1225 | _Tp* __expected, _Tp __value, memory_order, memory_order) { |
| 1226 | __a->__lock(); |
| 1227 | _Tp temp; |
| 1228 | __cxx_atomic_assign_volatile(temp, __a->__a_value); |
| 1229 | bool __ret = temp == *__expected; |
| 1230 | if(__ret) |
| 1231 | __cxx_atomic_assign_volatile(__a->__a_value, __value); |
| 1232 | else |
| 1233 | __cxx_atomic_assign_volatile(*__expected, __a->__a_value); |
| 1234 | __a->__unlock(); |
| 1235 | return __ret; |
| 1236 | } |
| 1237 | template <typename _Tp> |
| 1238 | _LIBCPP_INLINE_VISIBILITY |
| 1239 | bool __cxx_atomic_compare_exchange_weak(__cxx_atomic_lock_impl<_Tp>* __a, |
| 1240 | _Tp* __expected, _Tp __value, memory_order, memory_order) { |
| 1241 | __a->__lock(); |
| 1242 | bool __ret = __a->__a_value == *__expected; |
| 1243 | if(__ret) |
| 1244 | __a->__a_value = __value; |
| 1245 | else |
| 1246 | *__expected = __a->__a_value; |
| 1247 | __a->__unlock(); |
| 1248 | return __ret; |
| 1249 | } |
| 1250 | |
| 1251 | template <typename _Tp, typename _Td> |
| 1252 | _LIBCPP_INLINE_VISIBILITY |
| 1253 | _Tp __cxx_atomic_fetch_add(volatile __cxx_atomic_lock_impl<_Tp>* __a, |
| 1254 | _Td __delta, memory_order) { |
| 1255 | __a->__lock(); |
| 1256 | _Tp __old; |
| 1257 | __cxx_atomic_assign_volatile(__old, __a->__a_value); |
| 1258 | __cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old + __delta)); |
| 1259 | __a->__unlock(); |
| 1260 | return __old; |
| 1261 | } |
| 1262 | template <typename _Tp, typename _Td> |
| 1263 | _LIBCPP_INLINE_VISIBILITY |
| 1264 | _Tp __cxx_atomic_fetch_add(__cxx_atomic_lock_impl<_Tp>* __a, |
| 1265 | _Td __delta, memory_order) { |
| 1266 | __a->__lock(); |
| 1267 | _Tp __old = __a->__a_value; |
| 1268 | __a->__a_value += __delta; |
| 1269 | __a->__unlock(); |
| 1270 | return __old; |
| 1271 | } |
| 1272 | |
| 1273 | template <typename _Tp, typename _Td> |
| 1274 | _LIBCPP_INLINE_VISIBILITY |
| 1275 | _Tp* __cxx_atomic_fetch_add(volatile __cxx_atomic_lock_impl<_Tp*>* __a, |
| 1276 | ptrdiff_t __delta, memory_order) { |
| 1277 | __a->__lock(); |
| 1278 | _Tp* __old; |
| 1279 | __cxx_atomic_assign_volatile(__old, __a->__a_value); |
| 1280 | __cxx_atomic_assign_volatile(__a->__a_value, __old + __delta); |
| 1281 | __a->__unlock(); |
| 1282 | return __old; |
| 1283 | } |
| 1284 | template <typename _Tp, typename _Td> |
| 1285 | _LIBCPP_INLINE_VISIBILITY |
| 1286 | _Tp* __cxx_atomic_fetch_add(__cxx_atomic_lock_impl<_Tp*>* __a, |
| 1287 | ptrdiff_t __delta, memory_order) { |
| 1288 | __a->__lock(); |
| 1289 | _Tp* __old = __a->__a_value; |
| 1290 | __a->__a_value += __delta; |
| 1291 | __a->__unlock(); |
| 1292 | return __old; |
| 1293 | } |
| 1294 | |
| 1295 | template <typename _Tp, typename _Td> |
| 1296 | _LIBCPP_INLINE_VISIBILITY |
| 1297 | _Tp __cxx_atomic_fetch_sub(volatile __cxx_atomic_lock_impl<_Tp>* __a, |
| 1298 | _Td __delta, memory_order) { |
| 1299 | __a->__lock(); |
| 1300 | _Tp __old; |
| 1301 | __cxx_atomic_assign_volatile(__old, __a->__a_value); |
| 1302 | __cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old - __delta)); |
| 1303 | __a->__unlock(); |
| 1304 | return __old; |
| 1305 | } |
| 1306 | template <typename _Tp, typename _Td> |
| 1307 | _LIBCPP_INLINE_VISIBILITY |
| 1308 | _Tp __cxx_atomic_fetch_sub(__cxx_atomic_lock_impl<_Tp>* __a, |
| 1309 | _Td __delta, memory_order) { |
| 1310 | __a->__lock(); |
| 1311 | _Tp __old = __a->__a_value; |
| 1312 | __a->__a_value -= __delta; |
| 1313 | __a->__unlock(); |
| 1314 | return __old; |
| 1315 | } |
| 1316 | |
| 1317 | template <typename _Tp> |
| 1318 | _LIBCPP_INLINE_VISIBILITY |
| 1319 | _Tp __cxx_atomic_fetch_and(volatile __cxx_atomic_lock_impl<_Tp>* __a, |
| 1320 | _Tp __pattern, memory_order) { |
| 1321 | __a->__lock(); |
| 1322 | _Tp __old; |
| 1323 | __cxx_atomic_assign_volatile(__old, __a->__a_value); |
| 1324 | __cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old & __pattern)); |
| 1325 | __a->__unlock(); |
| 1326 | return __old; |
| 1327 | } |
| 1328 | template <typename _Tp> |
| 1329 | _LIBCPP_INLINE_VISIBILITY |
| 1330 | _Tp __cxx_atomic_fetch_and(__cxx_atomic_lock_impl<_Tp>* __a, |
| 1331 | _Tp __pattern, memory_order) { |
| 1332 | __a->__lock(); |
| 1333 | _Tp __old = __a->__a_value; |
| 1334 | __a->__a_value &= __pattern; |
| 1335 | __a->__unlock(); |
| 1336 | return __old; |
| 1337 | } |
| 1338 | |
| 1339 | template <typename _Tp> |
| 1340 | _LIBCPP_INLINE_VISIBILITY |
| 1341 | _Tp __cxx_atomic_fetch_or(volatile __cxx_atomic_lock_impl<_Tp>* __a, |
| 1342 | _Tp __pattern, memory_order) { |
| 1343 | __a->__lock(); |
| 1344 | _Tp __old; |
| 1345 | __cxx_atomic_assign_volatile(__old, __a->__a_value); |
| 1346 | __cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old | __pattern)); |
| 1347 | __a->__unlock(); |
| 1348 | return __old; |
| 1349 | } |
| 1350 | template <typename _Tp> |
| 1351 | _LIBCPP_INLINE_VISIBILITY |
| 1352 | _Tp __cxx_atomic_fetch_or(__cxx_atomic_lock_impl<_Tp>* __a, |
| 1353 | _Tp __pattern, memory_order) { |
| 1354 | __a->__lock(); |
| 1355 | _Tp __old = __a->__a_value; |
| 1356 | __a->__a_value |= __pattern; |
| 1357 | __a->__unlock(); |
| 1358 | return __old; |
| 1359 | } |
| 1360 | |
| 1361 | template <typename _Tp> |
| 1362 | _LIBCPP_INLINE_VISIBILITY |
| 1363 | _Tp __cxx_atomic_fetch_xor(volatile __cxx_atomic_lock_impl<_Tp>* __a, |
| 1364 | _Tp __pattern, memory_order) { |
| 1365 | __a->__lock(); |
| 1366 | _Tp __old; |
| 1367 | __cxx_atomic_assign_volatile(__old, __a->__a_value); |
| 1368 | __cxx_atomic_assign_volatile(__a->__a_value, _Tp(__old ^ __pattern)); |
| 1369 | __a->__unlock(); |
| 1370 | return __old; |
| 1371 | } |
| 1372 | template <typename _Tp> |
| 1373 | _LIBCPP_INLINE_VISIBILITY |
| 1374 | _Tp __cxx_atomic_fetch_xor(__cxx_atomic_lock_impl<_Tp>* __a, |
| 1375 | _Tp __pattern, memory_order) { |
| 1376 | __a->__lock(); |
| 1377 | _Tp __old = __a->__a_value; |
| 1378 | __a->__a_value ^= __pattern; |
| 1379 | __a->__unlock(); |
| 1380 | return __old; |
| 1381 | } |
| 1382 | |
| 1383 | #ifdef __cpp_lib_atomic_is_always_lock_free |
| 1384 | |
| 1385 | template<typename _Tp> struct __cxx_is_always_lock_free { |
| 1386 | enum { __value = __atomic_always_lock_free(sizeof(_Tp), 0) }; }; |
| 1387 | |
| 1388 | #else |
| 1389 | |
| 1390 | template<typename _Tp> struct __cxx_is_always_lock_free { enum { __value = false }; }; |
| 1391 | // Implementations must match the C ATOMIC_*_LOCK_FREE macro values. |
| 1392 | template<> struct __cxx_is_always_lock_free<bool> { enum { __value = 2 == ATOMIC_BOOL_LOCK_FREE }; }; |
| 1393 | template<> struct __cxx_is_always_lock_free<char> { enum { __value = 2 == ATOMIC_CHAR_LOCK_FREE }; }; |
| 1394 | template<> struct __cxx_is_always_lock_free<signed char> { enum { __value = 2 == ATOMIC_CHAR_LOCK_FREE }; }; |
| 1395 | template<> struct __cxx_is_always_lock_free<unsigned char> { enum { __value = 2 == ATOMIC_CHAR_LOCK_FREE }; }; |
| 1396 | template<> struct __cxx_is_always_lock_free<char16_t> { enum { __value = 2 == ATOMIC_CHAR16_T_LOCK_FREE }; }; |
| 1397 | template<> struct __cxx_is_always_lock_free<char32_t> { enum { __value = 2 == ATOMIC_CHAR32_T_LOCK_FREE }; }; |
| 1398 | template<> struct __cxx_is_always_lock_free<wchar_t> { enum { __value = 2 == ATOMIC_WCHAR_T_LOCK_FREE }; }; |
| 1399 | template<> struct __cxx_is_always_lock_free<short> { enum { __value = 2 == ATOMIC_SHORT_LOCK_FREE }; }; |
| 1400 | template<> struct __cxx_is_always_lock_free<unsigned short> { enum { __value = 2 == ATOMIC_SHORT_LOCK_FREE }; }; |
| 1401 | template<> struct __cxx_is_always_lock_free<int> { enum { __value = 2 == ATOMIC_INT_LOCK_FREE }; }; |
| 1402 | template<> struct __cxx_is_always_lock_free<unsigned int> { enum { __value = 2 == ATOMIC_INT_LOCK_FREE }; }; |
| 1403 | template<> struct __cxx_is_always_lock_free<long> { enum { __value = 2 == ATOMIC_LONG_LOCK_FREE }; }; |
| 1404 | template<> struct __cxx_is_always_lock_free<unsigned long> { enum { __value = 2 == ATOMIC_LONG_LOCK_FREE }; }; |
| 1405 | template<> struct __cxx_is_always_lock_free<long long> { enum { __value = 2 == ATOMIC_LLONG_LOCK_FREE }; }; |
| 1406 | template<> struct __cxx_is_always_lock_free<unsigned long long> { enum { __value = 2 == ATOMIC_LLONG_LOCK_FREE }; }; |
| 1407 | template<typename _Tp> struct __cxx_is_always_lock_free<_Tp*> { enum { __value = 2 == ATOMIC_POINTER_LOCK_FREE }; }; |
| 1408 | template<> struct __cxx_is_always_lock_free<std::nullptr_t> { enum { __value = 2 == ATOMIC_POINTER_LOCK_FREE }; }; |
| 1409 | |
| 1410 | #endif //__cpp_lib_atomic_is_always_lock_free |
| 1411 | |
| 1412 | template <typename _Tp, |
| 1413 | typename _Base = typename conditional<__cxx_is_always_lock_free<_Tp>::__value, |
| 1414 | __cxx_atomic_base_impl<_Tp>, |
| 1415 | __cxx_atomic_lock_impl<_Tp> >::type> |
| 1416 | #else |
| 1417 | template <typename _Tp, |
| 1418 | typename _Base = __cxx_atomic_base_impl<_Tp> > |
| 1419 | #endif //_LIBCPP_ATOMIC_ONLY_USE_BUILTINS |
| 1420 | struct __cxx_atomic_impl : public _Base { |
| 1421 | |
| 1422 | #if _GNUC_VER >= 501 |
| 1423 | static_assert(is_trivially_copyable<_Tp>::value, |
| 1424 | "std::atomic<Tp> requires that 'Tp' be a trivially copyable type"); |
| 1425 | #endif |
| 1426 | |
| 1427 | _LIBCPP_INLINE_VISIBILITY __cxx_atomic_impl() _NOEXCEPT _LIBCPP_DEFAULT |
| 1428 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR explicit __cxx_atomic_impl(_Tp value) _NOEXCEPT |
| 1429 | : _Base(value) {} |
| 1430 | }; |
| 1431 | |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1432 | // general atomic<T> |
| 1433 | |
| 1434 | template <class _Tp, bool = is_integral<_Tp>::value && !is_same<_Tp, bool>::value> |
| 1435 | struct __atomic_base // false |
| 1436 | { |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1437 | mutable __cxx_atomic_impl<_Tp> __a_; |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1438 | |
JF Bastien | fdb42c2 | 2016-03-25 15:48:21 +0000 | [diff] [blame] | 1439 | #if defined(__cpp_lib_atomic_is_always_lock_free) |
| 1440 | static _LIBCPP_CONSTEXPR bool is_always_lock_free = __atomic_always_lock_free(sizeof(__a_), 0); |
| 1441 | #endif |
| 1442 | |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1443 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1444 | bool is_lock_free() const volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1445 | {return __cxx_atomic_is_lock_free(sizeof(_Tp));} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1446 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1447 | bool is_lock_free() const _NOEXCEPT |
Eric Fiselier | 3fd22c2 | 2015-06-13 00:23:07 +0000 | [diff] [blame] | 1448 | {return static_cast<__atomic_base const volatile*>(this)->is_lock_free();} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1449 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1450 | void store(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1451 | _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1452 | {__cxx_atomic_store(&__a_, __d, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1453 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1454 | void store(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1455 | _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1456 | {__cxx_atomic_store(&__a_, __d, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1457 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1458 | _Tp load(memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1459 | _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1460 | {return __cxx_atomic_load(&__a_, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1461 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1462 | _Tp load(memory_order __m = memory_order_seq_cst) const _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1463 | _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1464 | {return __cxx_atomic_load(&__a_, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1465 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1466 | operator _Tp() const volatile _NOEXCEPT {return load();} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1467 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1468 | operator _Tp() const _NOEXCEPT {return load();} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1469 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1470 | _Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1471 | {return __cxx_atomic_exchange(&__a_, __d, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1472 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1473 | _Tp exchange(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1474 | {return __cxx_atomic_exchange(&__a_, __d, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1475 | _LIBCPP_INLINE_VISIBILITY |
| 1476 | bool compare_exchange_weak(_Tp& __e, _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1477 | memory_order __s, memory_order __f) volatile _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1478 | _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1479 | {return __cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1480 | _LIBCPP_INLINE_VISIBILITY |
| 1481 | bool compare_exchange_weak(_Tp& __e, _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1482 | memory_order __s, memory_order __f) _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1483 | _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1484 | {return __cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1485 | _LIBCPP_INLINE_VISIBILITY |
| 1486 | bool compare_exchange_strong(_Tp& __e, _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1487 | memory_order __s, memory_order __f) volatile _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1488 | _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1489 | {return __cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1490 | _LIBCPP_INLINE_VISIBILITY |
| 1491 | bool compare_exchange_strong(_Tp& __e, _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1492 | memory_order __s, memory_order __f) _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1493 | _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1494 | {return __cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1495 | _LIBCPP_INLINE_VISIBILITY |
| 1496 | bool compare_exchange_weak(_Tp& __e, _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1497 | memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1498 | {return __cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __m, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1499 | _LIBCPP_INLINE_VISIBILITY |
| 1500 | bool compare_exchange_weak(_Tp& __e, _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1501 | memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1502 | {return __cxx_atomic_compare_exchange_weak(&__a_, &__e, __d, __m, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1503 | _LIBCPP_INLINE_VISIBILITY |
| 1504 | bool compare_exchange_strong(_Tp& __e, _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1505 | memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1506 | {return __cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __m, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1507 | _LIBCPP_INLINE_VISIBILITY |
| 1508 | bool compare_exchange_strong(_Tp& __e, _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1509 | memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1510 | {return __cxx_atomic_compare_exchange_strong(&__a_, &__e, __d, __m, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1511 | |
| 1512 | _LIBCPP_INLINE_VISIBILITY |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1513 | __atomic_base() _NOEXCEPT _LIBCPP_DEFAULT |
Howard Hinnant | 3d28422 | 2013-05-02 20:18:43 +0000 | [diff] [blame] | 1514 | |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1515 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR |
| 1516 | __atomic_base(_Tp __d) _NOEXCEPT : __a_(__d) {} |
| 1517 | |
Eric Fiselier | 2d8515f | 2017-01-06 20:58:25 +0000 | [diff] [blame] | 1518 | #ifndef _LIBCPP_CXX03_LANG |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1519 | __atomic_base(const __atomic_base&) = delete; |
| 1520 | __atomic_base& operator=(const __atomic_base&) = delete; |
| 1521 | __atomic_base& operator=(const __atomic_base&) volatile = delete; |
Eric Fiselier | 2d8515f | 2017-01-06 20:58:25 +0000 | [diff] [blame] | 1522 | #else |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 1523 | private: |
| 1524 | __atomic_base(const __atomic_base&); |
| 1525 | __atomic_base& operator=(const __atomic_base&); |
| 1526 | __atomic_base& operator=(const __atomic_base&) volatile; |
Eric Fiselier | 2d8515f | 2017-01-06 20:58:25 +0000 | [diff] [blame] | 1527 | #endif |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1528 | }; |
| 1529 | |
JF Bastien | fdb42c2 | 2016-03-25 15:48:21 +0000 | [diff] [blame] | 1530 | #if defined(__cpp_lib_atomic_is_always_lock_free) |
| 1531 | template <class _Tp, bool __b> |
| 1532 | _LIBCPP_CONSTEXPR bool __atomic_base<_Tp, __b>::is_always_lock_free; |
| 1533 | #endif |
| 1534 | |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1535 | // atomic<Integral> |
| 1536 | |
| 1537 | template <class _Tp> |
| 1538 | struct __atomic_base<_Tp, true> |
| 1539 | : public __atomic_base<_Tp, false> |
| 1540 | { |
| 1541 | typedef __atomic_base<_Tp, false> __base; |
| 1542 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 3d28422 | 2013-05-02 20:18:43 +0000 | [diff] [blame] | 1543 | __atomic_base() _NOEXCEPT _LIBCPP_DEFAULT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1544 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1545 | _LIBCPP_CONSTEXPR __atomic_base(_Tp __d) _NOEXCEPT : __base(__d) {} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1546 | |
| 1547 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1548 | _Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1549 | {return __cxx_atomic_fetch_add(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1550 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1551 | _Tp fetch_add(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1552 | {return __cxx_atomic_fetch_add(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1553 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1554 | _Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1555 | {return __cxx_atomic_fetch_sub(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1556 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1557 | _Tp fetch_sub(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1558 | {return __cxx_atomic_fetch_sub(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1559 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1560 | _Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1561 | {return __cxx_atomic_fetch_and(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1562 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1563 | _Tp fetch_and(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1564 | {return __cxx_atomic_fetch_and(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1565 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1566 | _Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1567 | {return __cxx_atomic_fetch_or(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1568 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1569 | _Tp fetch_or(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1570 | {return __cxx_atomic_fetch_or(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1571 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1572 | _Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1573 | {return __cxx_atomic_fetch_xor(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1574 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1575 | _Tp fetch_xor(_Tp __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1576 | {return __cxx_atomic_fetch_xor(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1577 | |
| 1578 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1579 | _Tp operator++(int) volatile _NOEXCEPT {return fetch_add(_Tp(1));} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1580 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1581 | _Tp operator++(int) _NOEXCEPT {return fetch_add(_Tp(1));} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1582 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1583 | _Tp operator--(int) volatile _NOEXCEPT {return fetch_sub(_Tp(1));} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1584 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1585 | _Tp operator--(int) _NOEXCEPT {return fetch_sub(_Tp(1));} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1586 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1587 | _Tp operator++() volatile _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1588 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1589 | _Tp operator++() _NOEXCEPT {return fetch_add(_Tp(1)) + _Tp(1);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1590 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1591 | _Tp operator--() volatile _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1592 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1593 | _Tp operator--() _NOEXCEPT {return fetch_sub(_Tp(1)) - _Tp(1);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1594 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1595 | _Tp operator+=(_Tp __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1596 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1597 | _Tp operator+=(_Tp __op) _NOEXCEPT {return fetch_add(__op) + __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1598 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1599 | _Tp operator-=(_Tp __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1600 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1601 | _Tp operator-=(_Tp __op) _NOEXCEPT {return fetch_sub(__op) - __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1602 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1603 | _Tp operator&=(_Tp __op) volatile _NOEXCEPT {return fetch_and(__op) & __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1604 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1605 | _Tp operator&=(_Tp __op) _NOEXCEPT {return fetch_and(__op) & __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1606 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1607 | _Tp operator|=(_Tp __op) volatile _NOEXCEPT {return fetch_or(__op) | __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1608 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1609 | _Tp operator|=(_Tp __op) _NOEXCEPT {return fetch_or(__op) | __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1610 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1611 | _Tp operator^=(_Tp __op) volatile _NOEXCEPT {return fetch_xor(__op) ^ __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1612 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1613 | _Tp operator^=(_Tp __op) _NOEXCEPT {return fetch_xor(__op) ^ __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1614 | }; |
| 1615 | |
| 1616 | // atomic<T> |
| 1617 | |
| 1618 | template <class _Tp> |
| 1619 | struct atomic |
| 1620 | : public __atomic_base<_Tp> |
| 1621 | { |
| 1622 | typedef __atomic_base<_Tp> __base; |
| 1623 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 3d28422 | 2013-05-02 20:18:43 +0000 | [diff] [blame] | 1624 | atomic() _NOEXCEPT _LIBCPP_DEFAULT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1625 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1626 | _LIBCPP_CONSTEXPR atomic(_Tp __d) _NOEXCEPT : __base(__d) {} |
Howard Hinnant | 96e4cd6 | 2010-12-07 23:24:41 +0000 | [diff] [blame] | 1627 | |
| 1628 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1629 | _Tp operator=(_Tp __d) volatile _NOEXCEPT |
Howard Hinnant | 96e4cd6 | 2010-12-07 23:24:41 +0000 | [diff] [blame] | 1630 | {__base::store(__d); return __d;} |
| 1631 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1632 | _Tp operator=(_Tp __d) _NOEXCEPT |
Howard Hinnant | 96e4cd6 | 2010-12-07 23:24:41 +0000 | [diff] [blame] | 1633 | {__base::store(__d); return __d;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1634 | }; |
| 1635 | |
| 1636 | // atomic<T*> |
| 1637 | |
| 1638 | template <class _Tp> |
| 1639 | struct atomic<_Tp*> |
| 1640 | : public __atomic_base<_Tp*> |
| 1641 | { |
Howard Hinnant | 96e4cd6 | 2010-12-07 23:24:41 +0000 | [diff] [blame] | 1642 | typedef __atomic_base<_Tp*> __base; |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1643 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 3d28422 | 2013-05-02 20:18:43 +0000 | [diff] [blame] | 1644 | atomic() _NOEXCEPT _LIBCPP_DEFAULT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1645 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1646 | _LIBCPP_CONSTEXPR atomic(_Tp* __d) _NOEXCEPT : __base(__d) {} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1647 | |
| 1648 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1649 | _Tp* operator=(_Tp* __d) volatile _NOEXCEPT |
Howard Hinnant | 96e4cd6 | 2010-12-07 23:24:41 +0000 | [diff] [blame] | 1650 | {__base::store(__d); return __d;} |
| 1651 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1652 | _Tp* operator=(_Tp* __d) _NOEXCEPT |
Howard Hinnant | 96e4cd6 | 2010-12-07 23:24:41 +0000 | [diff] [blame] | 1653 | {__base::store(__d); return __d;} |
| 1654 | |
| 1655 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1656 | _Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1657 | volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1658 | {return __cxx_atomic_fetch_add(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1659 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1660 | _Tp* fetch_add(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1661 | {return __cxx_atomic_fetch_add(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1662 | _LIBCPP_INLINE_VISIBILITY |
| 1663 | _Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1664 | volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1665 | {return __cxx_atomic_fetch_sub(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1666 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1667 | _Tp* fetch_sub(ptrdiff_t __op, memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1668 | {return __cxx_atomic_fetch_sub(&this->__a_, __op, __m);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1669 | |
| 1670 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1671 | _Tp* operator++(int) volatile _NOEXCEPT {return fetch_add(1);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1672 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1673 | _Tp* operator++(int) _NOEXCEPT {return fetch_add(1);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1674 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1675 | _Tp* operator--(int) volatile _NOEXCEPT {return fetch_sub(1);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1676 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1677 | _Tp* operator--(int) _NOEXCEPT {return fetch_sub(1);} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1678 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1679 | _Tp* operator++() volatile _NOEXCEPT {return fetch_add(1) + 1;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1680 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1681 | _Tp* operator++() _NOEXCEPT {return fetch_add(1) + 1;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1682 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1683 | _Tp* operator--() volatile _NOEXCEPT {return fetch_sub(1) - 1;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1684 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1685 | _Tp* operator--() _NOEXCEPT {return fetch_sub(1) - 1;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1686 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1687 | _Tp* operator+=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_add(__op) + __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1688 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1689 | _Tp* operator+=(ptrdiff_t __op) _NOEXCEPT {return fetch_add(__op) + __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1690 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1691 | _Tp* operator-=(ptrdiff_t __op) volatile _NOEXCEPT {return fetch_sub(__op) - __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1692 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1693 | _Tp* operator-=(ptrdiff_t __op) _NOEXCEPT {return fetch_sub(__op) - __op;} |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1694 | }; |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1695 | |
| 1696 | // atomic_is_lock_free |
| 1697 | |
| 1698 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1699 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1700 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1701 | atomic_is_lock_free(const volatile atomic<_Tp>* __o) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1702 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1703 | return __o->is_lock_free(); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1704 | } |
| 1705 | |
| 1706 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1707 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1708 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1709 | atomic_is_lock_free(const atomic<_Tp>* __o) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1710 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1711 | return __o->is_lock_free(); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1712 | } |
| 1713 | |
| 1714 | // atomic_init |
| 1715 | |
| 1716 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1717 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1718 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1719 | atomic_init(volatile atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1720 | { |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1721 | __cxx_atomic_init(&__o->__a_, __d); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1722 | } |
| 1723 | |
| 1724 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1725 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1726 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1727 | atomic_init(atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1728 | { |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1729 | __cxx_atomic_init(&__o->__a_, __d); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1730 | } |
| 1731 | |
| 1732 | // atomic_store |
| 1733 | |
| 1734 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1735 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1736 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1737 | atomic_store(volatile atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1738 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1739 | __o->store(__d); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1740 | } |
| 1741 | |
| 1742 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1743 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1744 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1745 | atomic_store(atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1746 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1747 | __o->store(__d); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1748 | } |
| 1749 | |
| 1750 | // atomic_store_explicit |
| 1751 | |
| 1752 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1753 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1754 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1755 | atomic_store_explicit(volatile atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1756 | _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1757 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1758 | __o->store(__d, __m); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1759 | } |
| 1760 | |
| 1761 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1762 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1763 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1764 | atomic_store_explicit(atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1765 | _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1766 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1767 | __o->store(__d, __m); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1768 | } |
| 1769 | |
| 1770 | // atomic_load |
| 1771 | |
| 1772 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1773 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1774 | _Tp |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1775 | atomic_load(const volatile atomic<_Tp>* __o) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1776 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1777 | return __o->load(); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1778 | } |
| 1779 | |
| 1780 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1781 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1782 | _Tp |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1783 | atomic_load(const atomic<_Tp>* __o) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1784 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1785 | return __o->load(); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1786 | } |
| 1787 | |
| 1788 | // atomic_load_explicit |
| 1789 | |
| 1790 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1791 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1792 | _Tp |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1793 | atomic_load_explicit(const volatile atomic<_Tp>* __o, memory_order __m) _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1794 | _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1795 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1796 | return __o->load(__m); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1797 | } |
| 1798 | |
| 1799 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1800 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1801 | _Tp |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1802 | atomic_load_explicit(const atomic<_Tp>* __o, memory_order __m) _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1803 | _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1804 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1805 | return __o->load(__m); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1806 | } |
| 1807 | |
| 1808 | // atomic_exchange |
| 1809 | |
| 1810 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1811 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1812 | _Tp |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1813 | atomic_exchange(volatile atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1814 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1815 | return __o->exchange(__d); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1816 | } |
| 1817 | |
| 1818 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1819 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1820 | _Tp |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1821 | atomic_exchange(atomic<_Tp>* __o, _Tp __d) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1822 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1823 | return __o->exchange(__d); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1824 | } |
| 1825 | |
| 1826 | // atomic_exchange_explicit |
| 1827 | |
| 1828 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1829 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1830 | _Tp |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1831 | atomic_exchange_explicit(volatile atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1832 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1833 | return __o->exchange(__d, __m); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1834 | } |
| 1835 | |
| 1836 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1837 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1838 | _Tp |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1839 | atomic_exchange_explicit(atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1840 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1841 | return __o->exchange(__d, __m); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1842 | } |
| 1843 | |
| 1844 | // atomic_compare_exchange_weak |
| 1845 | |
| 1846 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1847 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1848 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1849 | atomic_compare_exchange_weak(volatile atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1850 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1851 | return __o->compare_exchange_weak(*__e, __d); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1852 | } |
| 1853 | |
| 1854 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1855 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1856 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1857 | atomic_compare_exchange_weak(atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1858 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1859 | return __o->compare_exchange_weak(*__e, __d); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1860 | } |
| 1861 | |
| 1862 | // atomic_compare_exchange_strong |
| 1863 | |
| 1864 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1865 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1866 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1867 | atomic_compare_exchange_strong(volatile atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1868 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1869 | return __o->compare_exchange_strong(*__e, __d); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1870 | } |
| 1871 | |
| 1872 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1873 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1874 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1875 | atomic_compare_exchange_strong(atomic<_Tp>* __o, _Tp* __e, _Tp __d) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1876 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1877 | return __o->compare_exchange_strong(*__e, __d); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1878 | } |
| 1879 | |
| 1880 | // atomic_compare_exchange_weak_explicit |
| 1881 | |
| 1882 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1883 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1884 | bool |
| 1885 | atomic_compare_exchange_weak_explicit(volatile atomic<_Tp>* __o, _Tp* __e, |
| 1886 | _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1887 | memory_order __s, memory_order __f) _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1888 | _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1889 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1890 | return __o->compare_exchange_weak(*__e, __d, __s, __f); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1891 | } |
| 1892 | |
| 1893 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1894 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1895 | bool |
| 1896 | atomic_compare_exchange_weak_explicit(atomic<_Tp>* __o, _Tp* __e, _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1897 | memory_order __s, memory_order __f) _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1898 | _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1899 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1900 | return __o->compare_exchange_weak(*__e, __d, __s, __f); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1901 | } |
| 1902 | |
| 1903 | // atomic_compare_exchange_strong_explicit |
| 1904 | |
| 1905 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1906 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1907 | bool |
| 1908 | atomic_compare_exchange_strong_explicit(volatile atomic<_Tp>* __o, |
| 1909 | _Tp* __e, _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1910 | memory_order __s, memory_order __f) _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1911 | _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1912 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1913 | return __o->compare_exchange_strong(*__e, __d, __s, __f); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1914 | } |
| 1915 | |
| 1916 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1917 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1918 | bool |
| 1919 | atomic_compare_exchange_strong_explicit(atomic<_Tp>* __o, _Tp* __e, |
| 1920 | _Tp __d, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1921 | memory_order __s, memory_order __f) _NOEXCEPT |
Eric Fiselier | b5ab51d | 2017-01-13 23:45:39 +0000 | [diff] [blame] | 1922 | _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1923 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1924 | return __o->compare_exchange_strong(*__e, __d, __s, __f); |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1925 | } |
| 1926 | |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1927 | // atomic_fetch_add |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1928 | |
| 1929 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1930 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1931 | typename enable_if |
| 1932 | < |
| 1933 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 1934 | _Tp |
| 1935 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1936 | atomic_fetch_add(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1937 | { |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1938 | return __o->fetch_add(__op); |
| 1939 | } |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1940 | |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1941 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1942 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1943 | typename enable_if |
| 1944 | < |
| 1945 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 1946 | _Tp |
| 1947 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1948 | atomic_fetch_add(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1949 | { |
| 1950 | return __o->fetch_add(__op); |
| 1951 | } |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 1952 | |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1953 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1954 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1955 | _Tp* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1956 | atomic_fetch_add(volatile atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1957 | { |
| 1958 | return __o->fetch_add(__op); |
| 1959 | } |
| 1960 | |
| 1961 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1962 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1963 | _Tp* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1964 | atomic_fetch_add(atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1965 | { |
| 1966 | return __o->fetch_add(__op); |
| 1967 | } |
| 1968 | |
| 1969 | // atomic_fetch_add_explicit |
| 1970 | |
| 1971 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1972 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1973 | typename enable_if |
| 1974 | < |
| 1975 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 1976 | _Tp |
| 1977 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1978 | atomic_fetch_add_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1979 | { |
| 1980 | return __o->fetch_add(__op, __m); |
| 1981 | } |
| 1982 | |
| 1983 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1984 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1985 | typename enable_if |
| 1986 | < |
| 1987 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 1988 | _Tp |
| 1989 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1990 | atomic_fetch_add_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1991 | { |
| 1992 | return __o->fetch_add(__op, __m); |
| 1993 | } |
| 1994 | |
| 1995 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 1996 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 1997 | _Tp* |
| 1998 | atomic_fetch_add_explicit(volatile atomic<_Tp*>* __o, ptrdiff_t __op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 1999 | memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2000 | { |
| 2001 | return __o->fetch_add(__op, __m); |
| 2002 | } |
| 2003 | |
| 2004 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2005 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2006 | _Tp* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2007 | atomic_fetch_add_explicit(atomic<_Tp*>* __o, ptrdiff_t __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2008 | { |
| 2009 | return __o->fetch_add(__op, __m); |
| 2010 | } |
| 2011 | |
| 2012 | // atomic_fetch_sub |
| 2013 | |
| 2014 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2015 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2016 | typename enable_if |
| 2017 | < |
| 2018 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2019 | _Tp |
| 2020 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2021 | atomic_fetch_sub(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2022 | { |
| 2023 | return __o->fetch_sub(__op); |
| 2024 | } |
| 2025 | |
| 2026 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2027 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2028 | typename enable_if |
| 2029 | < |
| 2030 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2031 | _Tp |
| 2032 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2033 | atomic_fetch_sub(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2034 | { |
| 2035 | return __o->fetch_sub(__op); |
| 2036 | } |
| 2037 | |
| 2038 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2039 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2040 | _Tp* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2041 | atomic_fetch_sub(volatile atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2042 | { |
| 2043 | return __o->fetch_sub(__op); |
| 2044 | } |
| 2045 | |
| 2046 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2047 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2048 | _Tp* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2049 | atomic_fetch_sub(atomic<_Tp*>* __o, ptrdiff_t __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2050 | { |
| 2051 | return __o->fetch_sub(__op); |
| 2052 | } |
| 2053 | |
| 2054 | // atomic_fetch_sub_explicit |
| 2055 | |
| 2056 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2057 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2058 | typename enable_if |
| 2059 | < |
| 2060 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2061 | _Tp |
| 2062 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2063 | atomic_fetch_sub_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2064 | { |
| 2065 | return __o->fetch_sub(__op, __m); |
| 2066 | } |
| 2067 | |
| 2068 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2069 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2070 | typename enable_if |
| 2071 | < |
| 2072 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2073 | _Tp |
| 2074 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2075 | atomic_fetch_sub_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2076 | { |
| 2077 | return __o->fetch_sub(__op, __m); |
| 2078 | } |
| 2079 | |
| 2080 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2081 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2082 | _Tp* |
| 2083 | atomic_fetch_sub_explicit(volatile atomic<_Tp*>* __o, ptrdiff_t __op, |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2084 | memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2085 | { |
| 2086 | return __o->fetch_sub(__op, __m); |
| 2087 | } |
| 2088 | |
| 2089 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2090 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2091 | _Tp* |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2092 | atomic_fetch_sub_explicit(atomic<_Tp*>* __o, ptrdiff_t __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2093 | { |
| 2094 | return __o->fetch_sub(__op, __m); |
| 2095 | } |
| 2096 | |
| 2097 | // atomic_fetch_and |
| 2098 | |
| 2099 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2100 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2101 | typename enable_if |
| 2102 | < |
| 2103 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2104 | _Tp |
| 2105 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2106 | atomic_fetch_and(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2107 | { |
| 2108 | return __o->fetch_and(__op); |
| 2109 | } |
| 2110 | |
| 2111 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2112 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2113 | typename enable_if |
| 2114 | < |
| 2115 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2116 | _Tp |
| 2117 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2118 | atomic_fetch_and(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2119 | { |
| 2120 | return __o->fetch_and(__op); |
| 2121 | } |
| 2122 | |
| 2123 | // atomic_fetch_and_explicit |
| 2124 | |
| 2125 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2126 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2127 | typename enable_if |
| 2128 | < |
| 2129 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2130 | _Tp |
| 2131 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2132 | atomic_fetch_and_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2133 | { |
| 2134 | return __o->fetch_and(__op, __m); |
| 2135 | } |
| 2136 | |
| 2137 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2138 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2139 | typename enable_if |
| 2140 | < |
| 2141 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2142 | _Tp |
| 2143 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2144 | atomic_fetch_and_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2145 | { |
| 2146 | return __o->fetch_and(__op, __m); |
| 2147 | } |
| 2148 | |
| 2149 | // atomic_fetch_or |
| 2150 | |
| 2151 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2152 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2153 | typename enable_if |
| 2154 | < |
| 2155 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2156 | _Tp |
| 2157 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2158 | atomic_fetch_or(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2159 | { |
| 2160 | return __o->fetch_or(__op); |
| 2161 | } |
| 2162 | |
| 2163 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2164 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2165 | typename enable_if |
| 2166 | < |
| 2167 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2168 | _Tp |
| 2169 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2170 | atomic_fetch_or(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2171 | { |
| 2172 | return __o->fetch_or(__op); |
| 2173 | } |
| 2174 | |
| 2175 | // atomic_fetch_or_explicit |
| 2176 | |
| 2177 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2178 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2179 | typename enable_if |
| 2180 | < |
| 2181 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2182 | _Tp |
| 2183 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2184 | atomic_fetch_or_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2185 | { |
| 2186 | return __o->fetch_or(__op, __m); |
| 2187 | } |
| 2188 | |
| 2189 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2190 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2191 | typename enable_if |
| 2192 | < |
| 2193 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2194 | _Tp |
| 2195 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2196 | atomic_fetch_or_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2197 | { |
| 2198 | return __o->fetch_or(__op, __m); |
| 2199 | } |
| 2200 | |
| 2201 | // atomic_fetch_xor |
| 2202 | |
| 2203 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2204 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2205 | typename enable_if |
| 2206 | < |
| 2207 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2208 | _Tp |
| 2209 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2210 | atomic_fetch_xor(volatile atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2211 | { |
| 2212 | return __o->fetch_xor(__op); |
| 2213 | } |
| 2214 | |
| 2215 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2216 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2217 | typename enable_if |
| 2218 | < |
| 2219 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2220 | _Tp |
| 2221 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2222 | atomic_fetch_xor(atomic<_Tp>* __o, _Tp __op) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2223 | { |
| 2224 | return __o->fetch_xor(__op); |
| 2225 | } |
| 2226 | |
| 2227 | // atomic_fetch_xor_explicit |
| 2228 | |
| 2229 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2230 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2231 | typename enable_if |
| 2232 | < |
| 2233 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2234 | _Tp |
| 2235 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2236 | atomic_fetch_xor_explicit(volatile atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2237 | { |
| 2238 | return __o->fetch_xor(__op, __m); |
| 2239 | } |
| 2240 | |
| 2241 | template <class _Tp> |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2242 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2243 | typename enable_if |
| 2244 | < |
| 2245 | is_integral<_Tp>::value && !is_same<_Tp, bool>::value, |
| 2246 | _Tp |
| 2247 | >::type |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2248 | atomic_fetch_xor_explicit(atomic<_Tp>* __o, _Tp __op, memory_order __m) _NOEXCEPT |
Howard Hinnant | 138f592 | 2010-12-07 20:46:14 +0000 | [diff] [blame] | 2249 | { |
| 2250 | return __o->fetch_xor(__op, __m); |
| 2251 | } |
Howard Hinnant | 7bfaeb8 | 2010-12-06 23:10:08 +0000 | [diff] [blame] | 2252 | |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2253 | // flag type and operations |
| 2254 | |
| 2255 | typedef struct atomic_flag |
| 2256 | { |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2257 | __cxx_atomic_impl<_LIBCPP_ATOMIC_FLAG_TYPE> __a_; |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2258 | |
| 2259 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2260 | bool test_and_set(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2261 | {return __cxx_atomic_exchange(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(true), __m);} |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2262 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2263 | bool test_and_set(memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2264 | {return __cxx_atomic_exchange(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(true), __m);} |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2265 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2266 | void clear(memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2267 | {__cxx_atomic_store(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(false), __m);} |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2268 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2269 | void clear(memory_order __m = memory_order_seq_cst) _NOEXCEPT |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2270 | {__cxx_atomic_store(&__a_, _LIBCPP_ATOMIC_FLAG_TYPE(false), __m);} |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2271 | |
| 2272 | _LIBCPP_INLINE_VISIBILITY |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2273 | atomic_flag() _NOEXCEPT _LIBCPP_DEFAULT |
Howard Hinnant | 3d28422 | 2013-05-02 20:18:43 +0000 | [diff] [blame] | 2274 | |
Marshall Clow | cf99075 | 2018-04-25 14:27:29 +0000 | [diff] [blame] | 2275 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR |
Eric Fiselier | fec26a9 | 2016-05-03 02:12:26 +0000 | [diff] [blame] | 2276 | atomic_flag(bool __b) _NOEXCEPT : __a_(__b) {} // EXTENSION |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2277 | |
Eric Fiselier | 2d8515f | 2017-01-06 20:58:25 +0000 | [diff] [blame] | 2278 | #ifndef _LIBCPP_CXX03_LANG |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2279 | atomic_flag(const atomic_flag&) = delete; |
| 2280 | atomic_flag& operator=(const atomic_flag&) = delete; |
| 2281 | atomic_flag& operator=(const atomic_flag&) volatile = delete; |
Eric Fiselier | 2d8515f | 2017-01-06 20:58:25 +0000 | [diff] [blame] | 2282 | #else |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2283 | private: |
| 2284 | atomic_flag(const atomic_flag&); |
| 2285 | atomic_flag& operator=(const atomic_flag&); |
| 2286 | atomic_flag& operator=(const atomic_flag&) volatile; |
Eric Fiselier | 2d8515f | 2017-01-06 20:58:25 +0000 | [diff] [blame] | 2287 | #endif |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2288 | } atomic_flag; |
| 2289 | |
| 2290 | inline _LIBCPP_INLINE_VISIBILITY |
| 2291 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2292 | atomic_flag_test_and_set(volatile atomic_flag* __o) _NOEXCEPT |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2293 | { |
| 2294 | return __o->test_and_set(); |
| 2295 | } |
| 2296 | |
| 2297 | inline _LIBCPP_INLINE_VISIBILITY |
| 2298 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2299 | atomic_flag_test_and_set(atomic_flag* __o) _NOEXCEPT |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2300 | { |
| 2301 | return __o->test_and_set(); |
| 2302 | } |
| 2303 | |
| 2304 | inline _LIBCPP_INLINE_VISIBILITY |
| 2305 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2306 | atomic_flag_test_and_set_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2307 | { |
| 2308 | return __o->test_and_set(__m); |
| 2309 | } |
| 2310 | |
| 2311 | inline _LIBCPP_INLINE_VISIBILITY |
| 2312 | bool |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2313 | atomic_flag_test_and_set_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2314 | { |
| 2315 | return __o->test_and_set(__m); |
| 2316 | } |
| 2317 | |
| 2318 | inline _LIBCPP_INLINE_VISIBILITY |
| 2319 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2320 | atomic_flag_clear(volatile atomic_flag* __o) _NOEXCEPT |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2321 | { |
| 2322 | __o->clear(); |
| 2323 | } |
| 2324 | |
| 2325 | inline _LIBCPP_INLINE_VISIBILITY |
| 2326 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2327 | atomic_flag_clear(atomic_flag* __o) _NOEXCEPT |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2328 | { |
| 2329 | __o->clear(); |
| 2330 | } |
| 2331 | |
| 2332 | inline _LIBCPP_INLINE_VISIBILITY |
| 2333 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2334 | atomic_flag_clear_explicit(volatile atomic_flag* __o, memory_order __m) _NOEXCEPT |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2335 | { |
| 2336 | __o->clear(__m); |
| 2337 | } |
| 2338 | |
| 2339 | inline _LIBCPP_INLINE_VISIBILITY |
| 2340 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2341 | atomic_flag_clear_explicit(atomic_flag* __o, memory_order __m) _NOEXCEPT |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2342 | { |
| 2343 | __o->clear(__m); |
| 2344 | } |
| 2345 | |
| 2346 | // fences |
| 2347 | |
| 2348 | inline _LIBCPP_INLINE_VISIBILITY |
| 2349 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2350 | atomic_thread_fence(memory_order __m) _NOEXCEPT |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2351 | { |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2352 | __cxx_atomic_thread_fence(__m); |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2353 | } |
| 2354 | |
| 2355 | inline _LIBCPP_INLINE_VISIBILITY |
| 2356 | void |
Howard Hinnant | eee2c14 | 2012-04-11 20:14:21 +0000 | [diff] [blame] | 2357 | atomic_signal_fence(memory_order __m) _NOEXCEPT |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2358 | { |
Davide Italiano | 011f80a | 2019-03-05 18:40:49 +0000 | [diff] [blame] | 2359 | __cxx_atomic_signal_fence(__m); |
Howard Hinnant | 6ac60f8 | 2010-12-08 17:20:28 +0000 | [diff] [blame] | 2360 | } |
| 2361 | |
Howard Hinnant | 96e4cd6 | 2010-12-07 23:24:41 +0000 | [diff] [blame] | 2362 | // Atomics for standard typedef types |
| 2363 | |
Howard Hinnant | f0af8d9 | 2013-01-04 18:58:50 +0000 | [diff] [blame] | 2364 | typedef atomic<bool> atomic_bool; |
Howard Hinnant | 96e4cd6 | 2010-12-07 23:24:41 +0000 | [diff] [blame] | 2365 | typedef atomic<char> atomic_char; |
| 2366 | typedef atomic<signed char> atomic_schar; |
| 2367 | typedef atomic<unsigned char> atomic_uchar; |
| 2368 | typedef atomic<short> atomic_short; |
| 2369 | typedef atomic<unsigned short> atomic_ushort; |
| 2370 | typedef atomic<int> atomic_int; |
| 2371 | typedef atomic<unsigned int> atomic_uint; |
| 2372 | typedef atomic<long> atomic_long; |
| 2373 | typedef atomic<unsigned long> atomic_ulong; |
| 2374 | typedef atomic<long long> atomic_llong; |
| 2375 | typedef atomic<unsigned long long> atomic_ullong; |
| 2376 | typedef atomic<char16_t> atomic_char16_t; |
| 2377 | typedef atomic<char32_t> atomic_char32_t; |
| 2378 | typedef atomic<wchar_t> atomic_wchar_t; |
| 2379 | |
| 2380 | typedef atomic<int_least8_t> atomic_int_least8_t; |
| 2381 | typedef atomic<uint_least8_t> atomic_uint_least8_t; |
| 2382 | typedef atomic<int_least16_t> atomic_int_least16_t; |
| 2383 | typedef atomic<uint_least16_t> atomic_uint_least16_t; |
| 2384 | typedef atomic<int_least32_t> atomic_int_least32_t; |
| 2385 | typedef atomic<uint_least32_t> atomic_uint_least32_t; |
| 2386 | typedef atomic<int_least64_t> atomic_int_least64_t; |
| 2387 | typedef atomic<uint_least64_t> atomic_uint_least64_t; |
| 2388 | |
| 2389 | typedef atomic<int_fast8_t> atomic_int_fast8_t; |
| 2390 | typedef atomic<uint_fast8_t> atomic_uint_fast8_t; |
| 2391 | typedef atomic<int_fast16_t> atomic_int_fast16_t; |
| 2392 | typedef atomic<uint_fast16_t> atomic_uint_fast16_t; |
| 2393 | typedef atomic<int_fast32_t> atomic_int_fast32_t; |
| 2394 | typedef atomic<uint_fast32_t> atomic_uint_fast32_t; |
| 2395 | typedef atomic<int_fast64_t> atomic_int_fast64_t; |
| 2396 | typedef atomic<uint_fast64_t> atomic_uint_fast64_t; |
| 2397 | |
Marshall Clow | f710afc | 2016-06-30 15:28:38 +0000 | [diff] [blame] | 2398 | typedef atomic< int8_t> atomic_int8_t; |
| 2399 | typedef atomic<uint8_t> atomic_uint8_t; |
| 2400 | typedef atomic< int16_t> atomic_int16_t; |
| 2401 | typedef atomic<uint16_t> atomic_uint16_t; |
| 2402 | typedef atomic< int32_t> atomic_int32_t; |
| 2403 | typedef atomic<uint32_t> atomic_uint32_t; |
| 2404 | typedef atomic< int64_t> atomic_int64_t; |
| 2405 | typedef atomic<uint64_t> atomic_uint64_t; |
| 2406 | |
Howard Hinnant | 96e4cd6 | 2010-12-07 23:24:41 +0000 | [diff] [blame] | 2407 | typedef atomic<intptr_t> atomic_intptr_t; |
| 2408 | typedef atomic<uintptr_t> atomic_uintptr_t; |
| 2409 | typedef atomic<size_t> atomic_size_t; |
| 2410 | typedef atomic<ptrdiff_t> atomic_ptrdiff_t; |
| 2411 | typedef atomic<intmax_t> atomic_intmax_t; |
| 2412 | typedef atomic<uintmax_t> atomic_uintmax_t; |
| 2413 | |
Howard Hinnant | f1f066a | 2010-09-29 21:20:03 +0000 | [diff] [blame] | 2414 | #define ATOMIC_FLAG_INIT {false} |
Howard Hinnant | 953c31d | 2010-10-04 18:52:54 +0000 | [diff] [blame] | 2415 | #define ATOMIC_VAR_INIT(__v) {__v} |
| 2416 | |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 2417 | _LIBCPP_END_NAMESPACE_STD |
| 2418 | |
Howard Hinnant | 71be729 | 2010-09-27 21:17:38 +0000 | [diff] [blame] | 2419 | #endif // _LIBCPP_ATOMIC |