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Diffstat (limited to 'tinycc/include/stdatomic.h')
| -rw-r--r-- | tinycc/include/stdatomic.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/tinycc/include/stdatomic.h b/tinycc/include/stdatomic.h new file mode 100644 index 0000000..a8372ee --- /dev/null +++ b/tinycc/include/stdatomic.h @@ -0,0 +1,172 @@ +/* This file is derived from clang's stdatomic.h */ + +/*===---- stdatomic.h - Standard header for atomic types and operations -----=== + * + * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. + * See https://llvm.org/LICENSE.txt for license information. + * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception + * + *===-----------------------------------------------------------------------=== + */ + +#ifndef _STDATOMIC_H +#define _STDATOMIC_H + +#include <stddef.h> +#include <stdint.h> +#include <stdbool.h> + +#define __ATOMIC_RELAXED 0 +#define __ATOMIC_CONSUME 1 +#define __ATOMIC_ACQUIRE 2 +#define __ATOMIC_RELEASE 3 +#define __ATOMIC_ACQ_REL 4 +#define __ATOMIC_SEQ_CST 5 + +/* Memory ordering */ +typedef enum { + 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; + +/* Atomic typedefs */ +typedef _Atomic(_Bool) atomic_bool; +typedef _Atomic(char) atomic_char; +typedef _Atomic(signed char) atomic_schar; +typedef _Atomic(unsigned char) atomic_uchar; +typedef _Atomic(short) atomic_short; +typedef _Atomic(unsigned short) atomic_ushort; +typedef _Atomic(int) atomic_int; +typedef _Atomic(unsigned int) atomic_uint; +typedef _Atomic(long) atomic_long; +typedef _Atomic(unsigned long) atomic_ulong; +typedef _Atomic(long long) atomic_llong; +typedef _Atomic(unsigned long long) atomic_ullong; +typedef _Atomic(uint_least16_t) atomic_char16_t; +typedef _Atomic(uint_least32_t) atomic_char32_t; +typedef _Atomic(wchar_t) atomic_wchar_t; +typedef _Atomic(int_least8_t) atomic_int_least8_t; +typedef _Atomic(uint_least8_t) atomic_uint_least8_t; +typedef _Atomic(int_least16_t) atomic_int_least16_t; +typedef _Atomic(uint_least16_t) atomic_uint_least16_t; +typedef _Atomic(int_least32_t) atomic_int_least32_t; +typedef _Atomic(uint_least32_t) atomic_uint_least32_t; +typedef _Atomic(int_least64_t) atomic_int_least64_t; +typedef _Atomic(uint_least64_t) atomic_uint_least64_t; +typedef _Atomic(int_fast8_t) atomic_int_fast8_t; +typedef _Atomic(uint_fast8_t) atomic_uint_fast8_t; +typedef _Atomic(int_fast16_t) atomic_int_fast16_t; +typedef _Atomic(uint_fast16_t) atomic_uint_fast16_t; +typedef _Atomic(int_fast32_t) atomic_int_fast32_t; +typedef _Atomic(uint_fast32_t) atomic_uint_fast32_t; +typedef _Atomic(int_fast64_t) atomic_int_fast64_t; +typedef _Atomic(uint_fast64_t) atomic_uint_fast64_t; +typedef _Atomic(intptr_t) atomic_intptr_t; +typedef _Atomic(uintptr_t) atomic_uintptr_t; +typedef _Atomic(size_t) atomic_size_t; +typedef _Atomic(ptrdiff_t) atomic_ptrdiff_t; +typedef _Atomic(intmax_t) atomic_intmax_t; +typedef _Atomic(uintmax_t) atomic_uintmax_t; + +/* Atomic flag */ +typedef struct { + atomic_bool value; +} atomic_flag; + +#define ATOMIC_FLAG_INIT {0} + +#define atomic_flag_test_and_set_explicit(object, order) \ + __atomic_test_and_set((void *)(&((object)->value)), order) +#define atomic_flag_test_and_set(object) \ + atomic_flag_test_and_set_explicit(object, __ATOMIC_SEQ_CST) + +#define atomic_flag_clear_explicit(object, order) \ + __atomic_clear((bool *)(&((object)->value)), order) +#define atomic_flag_clear(object) \ + atomic_flag_clear_explicit(object, __ATOMIC_SEQ_CST) + +/* Generic routines */ +#define atomic_init(object, desired) \ + atomic_store_explicit(object, desired, __ATOMIC_RELAXED) + +#define atomic_store_explicit(object, desired, order) \ + ({ __typeof__ (object) ptr = (object); \ + __typeof__ (*ptr) tmp = (desired); \ + __atomic_store (ptr, &tmp, (order)); \ + }) +#define atomic_store(object, desired) \ + atomic_store_explicit (object, desired, __ATOMIC_SEQ_CST) + +#define atomic_load_explicit(object, order) \ + ({ __typeof__ (object) ptr = (object); \ + __typeof__ (*ptr) tmp; \ + __atomic_load (ptr, &tmp, (order)); \ + tmp; \ + }) +#define atomic_load(object) atomic_load_explicit (object, __ATOMIC_SEQ_CST) + +#define atomic_exchange_explicit(object, desired, order) \ + ({ __typeof__ (object) ptr = (object); \ + __typeof__ (*ptr) val = (desired); \ + __typeof__ (*ptr) tmp; \ + __atomic_exchange (ptr, &val, &tmp, (order)); \ + tmp; \ + }) +#define atomic_exchange(object, desired) \ + atomic_exchange_explicit (object, desired, __ATOMIC_SEQ_CST) + +#define atomic_compare_exchange_strong_explicit(object, expected, desired, success, failure) \ + ({ __typeof__ (object) ptr = (object); \ + __typeof__ (*ptr) tmp = desired; \ + __atomic_compare_exchange(ptr, expected, &tmp, 0, success, failure); \ + }) +#define atomic_compare_exchange_strong(object, expected, desired) \ + atomic_compare_exchange_strong_explicit (object, expected, desired, \ + __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST) + +#define atomic_compare_exchange_weak_explicit(object, expected, desired, success, failure) \ + ({ __typeof__ (object) ptr = (object); \ + __typeof__ (*ptr) tmp = desired; \ + __atomic_compare_exchange(ptr, expected, &tmp, 1, success, failure); \ + }) +#define atomic_compare_exchange_weak(object, expected, desired) \ + atomic_compare_exchange_weak_explicit (PTR, VAL, DES, \ + __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST) + +#define atomic_fetch_add(object, operand) \ + __atomic_fetch_add(object, operand, __ATOMIC_SEQ_CST) +#define atomic_fetch_add_explicit __atomic_fetch_add + +#define atomic_fetch_sub(object, operand) \ + __atomic_fetch_sub(object, operand, __ATOMIC_SEQ_CST) +#define atomic_fetch_sub_explicit __atomic_fetch_sub + +#define atomic_fetch_or(object, operand) \ + __atomic_fetch_or(object, operand, __ATOMIC_SEQ_CST) +#define atomic_fetch_or_explicit __atomic_fetch_or + +#define atomic_fetch_xor(object, operand) \ + __atomic_fetch_xor(object, operand, __ATOMIC_SEQ_CST) +#define atomic_fetch_xor_explicit __atomic_fetch_xor + +#define atomic_fetch_and(object, operand) \ + __atomic_fetch_and(object, operand, __ATOMIC_SEQ_CST) +#define atomic_fetch_and_explicit __atomic_fetch_and + +extern void atomic_thread_fence (memory_order); +extern void __atomic_thread_fence (memory_order); +#define atomic_thread_fence(order) __atomic_thread_fence (order) +extern void atomic_signal_fence (memory_order); +extern void __atomic_signal_fence (memory_order); +#define atomic_signal_fence(order) __atomic_signal_fence (order) +extern bool __atomic_is_lock_free(size_t size, void *ptr); +#define atomic_is_lock_free(OBJ) __atomic_is_lock_free (sizeof (*(OBJ)), (OBJ)) + +extern bool __atomic_test_and_set (void *, memory_order); +extern void __atomic_clear (bool *, memory_order); + +#endif /* _STDATOMIC_H */ |