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Diffstat (limited to 'lib/isc/include/isc/stdatomic.h')
| -rw-r--r-- | lib/isc/include/isc/stdatomic.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/lib/isc/include/isc/stdatomic.h b/lib/isc/include/isc/stdatomic.h new file mode 100644 index 0000000..7c2e21c --- /dev/null +++ b/lib/isc/include/isc/stdatomic.h @@ -0,0 +1,125 @@ +/* + * Copyright (C) Internet Systems Consortium, Inc. ("ISC") + * + * SPDX-License-Identifier: MPL-2.0 + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, you can obtain one at https://mozilla.org/MPL/2.0/. + * + * See the COPYRIGHT file distributed with this work for additional + * information regarding copyright ownership. + */ + +#pragma once + +#include <inttypes.h> +#include <stdbool.h> +#include <stddef.h> +#if HAVE_UCHAR_H +#include <uchar.h> +#endif /* HAVE_UCHAR_H */ + +/* GCC 4.7.0 introduced __atomic builtins, but not the __GNUC_ATOMICS define */ +#if !defined(__GNUC_ATOMICS) && __GNUC__ == 4 && __GNUC_MINOR__ >= 7 +#define __GNUC_ATOMICS +#endif + +#if !defined(__GNUC_ATOMICS) +#error "isc/stdatomic.h does not support your compiler" +#endif /* if !defined(__GNUC_ATOMICS) */ + +typedef enum memory_order { + memory_order_relaxed = __ATOMIC_RELAXED, + memory_order_consume = __ATOMIC_CONSUME, + memory_order_acquire = __ATOMIC_ACQUIRE, + memory_order_release = __ATOMIC_RELEASE, + memory_order_acq_rel = __ATOMIC_ACQ_REL, + memory_order_seq_cst = __ATOMIC_SEQ_CST +} memory_order; + +#ifndef HAVE_UCHAR_H +typedef uint_least16_t char16_t; +typedef uint_least32_t char32_t; +#endif /* HAVE_UCHAR_H */ + +typedef bool atomic_bool; +typedef char atomic_char; +typedef signed char atomic_schar; +typedef unsigned char atomic_uchar; +typedef short atomic_short; +typedef unsigned short atomic_ushort; +typedef int atomic_int; +typedef unsigned int atomic_uint; +typedef long atomic_long; +typedef unsigned long atomic_ulong; +typedef long long atomic_llong; +typedef unsigned long long atomic_ullong; +typedef char16_t atomic_char16_t; +typedef char32_t atomic_char32_t; +typedef wchar_t atomic_wchar_t; +typedef int_least8_t atomic_int_least8_t; +typedef uint_least8_t atomic_uint_least8_t; +typedef int_least16_t atomic_int_least16_t; +typedef uint_least16_t atomic_uint_least16_t; +typedef int_least32_t atomic_int_least32_t; +typedef uint_least32_t atomic_uint_least32_t; +typedef int_least64_t atomic_int_least64_t; +typedef uint_least64_t atomic_uint_least64_t; +typedef int_fast8_t atomic_int_fast8_t; +typedef uint_fast8_t atomic_uint_fast8_t; +typedef int_fast16_t atomic_int_fast16_t; +typedef uint_fast16_t atomic_uint_fast16_t; +typedef int_fast32_t atomic_int_fast32_t; +typedef uint_fast32_t atomic_uint_fast32_t; +typedef int_fast64_t atomic_int_fast64_t; +typedef uint_fast64_t atomic_uint_fast64_t; +typedef intptr_t atomic_intptr_t; +typedef uintptr_t atomic_uintptr_t; +typedef size_t atomic_size_t; +typedef ptrdiff_t atomic_ptrdiff_t; +typedef intmax_t atomic_intmax_t; +typedef uintmax_t atomic_uintmax_t; + +#define atomic_init(obj, desired) (*obj = desired) +#define atomic_load_explicit(obj, order) __atomic_load_n(obj, order) +#define atomic_store_explicit(obj, desired, order) \ + __atomic_store_n(obj, desired, order) +#define atomic_fetch_add_explicit(obj, arg, order) \ + __atomic_fetch_add(obj, arg, order) +#define atomic_fetch_sub_explicit(obj, arg, order) \ + __atomic_fetch_sub(obj, arg, order) +#define atomic_fetch_and_explicit(obj, arg, order) \ + __atomic_fetch_and(obj, arg, order) +#define atomic_fetch_or_explicit(obj, arg, order) \ + __atomic_fetch_or(obj, arg, order) +#define atomic_compare_exchange_strong_explicit(obj, expected, desired, succ, \ + fail) \ + __atomic_compare_exchange_n(obj, expected, desired, 0, succ, fail) +#define atomic_compare_exchange_weak_explicit(obj, expected, desired, succ, \ + fail) \ + __atomic_compare_exchange_n(obj, expected, desired, 1, succ, fail) +#define atomic_exchange_explicit(obj, desired, order) \ + __atomic_exchange_n(obj, desired, order) + +#define atomic_load(obj) atomic_load_explicit(obj, memory_order_seq_cst) +#define atomic_store(obj, arg) \ + atomic_store_explicit(obj, arg, memory_order_seq_cst) +#define atomic_fetch_add(obj, arg) \ + atomic_fetch_add_explicit(obj, arg, memory_order_seq_cst) +#define atomic_fetch_sub(obj, arg) \ + atomic_fetch_sub_explicit(obj, arg, memory_order_seq_cst) +#define atomic_fetch_and(obj, arg) \ + atomic_fetch_and_explicit(obj, arg, memory_order_seq_cst) +#define atomic_fetch_or(obj, arg) \ + atomic_fetch_or_explicit(obj, arg, memory_order_seq_cst) +#define atomic_compare_exchange_strong(obj, expected, desired) \ + atomic_compare_exchange_strong_explicit(obj, expected, desired, \ + memory_order_seq_cst, \ + memory_order_seq_cst) +#define atomic_compare_exchange_weak(obj, expected, desired) \ + atomic_compare_exchange_weak_explicit(obj, expected, desired, \ + memory_order_seq_cst, \ + memory_order_seq_cst) +#define atomic_exchange(obj, desired) \ + atomic_exchange_explicit(obj, desired, memory_order_seq_cst) |