1 /* 2 * Copyright (c) 2015, Xilinx Inc. and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 /* 8 * @file atomic.h 9 * @brief Atomic primitives for libmetal. 10 */ 11 12 #ifndef __METAL_ATOMIC__H__ 13 #define __METAL_ATOMIC__H__ 14 15 #include <metal/config.h> 16 17 #if defined(__cplusplus) 18 # include <cstdint> 19 20 /* 21 * <atomic> has the same functionality as <stdatomic.h> but all members are only 22 * accessible in the std namespace. As the rest of libmetal is pure C, it does 23 * not know about namespaces, even when compiled as part of a C++ file. So we 24 * just export the members of <atomic> into the global namespace. 25 */ 26 # include <atomic> 27 using std::atomic_flag; 28 using std::memory_order; 29 using std::memory_order_relaxed; 30 using std::memory_order_consume; 31 using std::memory_order_acquire; 32 using std::memory_order_release; 33 using std::memory_order_acq_rel; 34 using std::memory_order_seq_cst; 35 36 using std::atomic_bool; 37 using std::atomic_char; 38 using std::atomic_schar; 39 using std::atomic_uchar; 40 using std::atomic_short; 41 using std::atomic_ushort; 42 using std::atomic_int; 43 using std::atomic_uint; 44 using std::atomic_long; 45 using std::atomic_ulong; 46 using std::atomic_llong; 47 using std::atomic_ullong; 48 using std::atomic_char16_t; 49 using std::atomic_char32_t; 50 using std::atomic_wchar_t; 51 using std::atomic_int_least8_t; 52 using std::atomic_uint_least8_t; 53 using std::atomic_int_least16_t; 54 using std::atomic_uint_least16_t; 55 using std::atomic_int_least32_t; 56 using std::atomic_uint_least32_t; 57 using std::atomic_int_least64_t; 58 using std::atomic_uint_least64_t; 59 using std::atomic_int_fast8_t; 60 using std::atomic_uint_fast8_t; 61 using std::atomic_int_fast16_t; 62 using std::atomic_uint_fast16_t; 63 using std::atomic_int_fast32_t; 64 using std::atomic_uint_fast32_t; 65 using std::atomic_int_fast64_t; 66 using std::atomic_uint_fast64_t; 67 using std::atomic_intptr_t; 68 using std::atomic_uintptr_t; 69 using std::atomic_size_t; 70 using std::atomic_ptrdiff_t; 71 using std::atomic_intmax_t; 72 using std::atomic_uintmax_t; 73 74 using std::atomic_flag_test_and_set; 75 using std::atomic_flag_test_and_set_explicit; 76 using std::atomic_flag_clear; 77 using std::atomic_flag_clear_explicit; 78 using std::atomic_init; 79 using std::atomic_is_lock_free; 80 using std::atomic_store; 81 using std::atomic_store_explicit; 82 using std::atomic_load; 83 using std::atomic_load_explicit; 84 using std::atomic_exchange; 85 using std::atomic_exchange_explicit; 86 using std::atomic_compare_exchange_strong; 87 using std::atomic_compare_exchange_strong_explicit; 88 using std::atomic_compare_exchange_weak; 89 using std::atomic_compare_exchange_weak_explicit; 90 using std::atomic_fetch_add; 91 using std::atomic_fetch_add_explicit; 92 using std::atomic_fetch_sub; 93 using std::atomic_fetch_sub_explicit; 94 using std::atomic_fetch_or; 95 using std::atomic_fetch_or_explicit; 96 using std::atomic_fetch_xor; 97 using std::atomic_fetch_xor_explicit; 98 using std::atomic_fetch_and; 99 using std::atomic_fetch_and_explicit; 100 using std::atomic_thread_fence; 101 using std::atomic_signal_fence; 102 103 #elif defined(HAVE_STDATOMIC_H) && !defined(__ARMCC_VERSION) && \ 104 !defined(__STDC_NO_ATOMICS__) 105 # include <stdint.h> 106 # include <stdatomic.h> 107 #elif defined(__GNUC__) 108 # include <metal/compiler/gcc/atomic.h> 109 #else 110 #if defined(HAVE_PROCESSOR_ATOMIC_H) 111 # include <metal/processor/@PROJECT_PROCESSOR@/atomic.h> 112 #else 113 # include <metal/processor/generic/atomic.h> 114 #endif /* defined(HAVE_PROCESSOR_ATOMIC_H) */ 115 #endif 116 117 #endif /* __METAL_ATOMIC__H__ */ 118
