Viewing file:  swoole_atomic.h (2.39 KB) -rw-r--r--
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/*
+----------------------------------------------------------------------+
| Swoole |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the Apache license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.apache.org/licenses/LICENSE-2.0.html |
| If you did not receive a copy of the Apache2.0 license and are unable|
| to obtain it through the world-wide-web, please send a note to |
| license@swoole.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Tianfeng Han <mikan.tenny@gmail.com> |
| Twosee <twose@qq.com> |
+----------------------------------------------------------------------+
*/
#pragma once
typedef volatile int32_t sw_atomic_int32_t;
typedef volatile uint32_t sw_atomic_uint32_t;
#if defined(__x86_64__) || defined(__aarch64__)
typedef volatile int64_t sw_atomic_int64_t;
typedef volatile uint64_t sw_atomic_uint64_t;
#endif
#if defined(__x86_64__) || defined(__aarch64__)
typedef sw_atomic_int64_t sw_atomic_long_t;
typedef sw_atomic_uint64_t sw_atomic_ulong_t;
#else
typedef sw_atomic_int32_t sw_atomic_long_t;
typedef sw_atomic_uint32_t sw_atomic_ulong_t;
#endif
typedef sw_atomic_uint32_t sw_atomic_t;
#define sw_atomic_cmp_set(lock, old, set) __sync_bool_compare_and_swap(lock, old, set)
#define sw_atomic_fetch_add(value, add) __sync_fetch_and_add(value, add)
#define sw_atomic_fetch_sub(value, sub) __sync_fetch_and_sub(value, sub)
#define sw_atomic_memory_barrier() __sync_synchronize()
#define sw_atomic_add_fetch(value, add) __sync_add_and_fetch(value, add)
#define sw_atomic_sub_fetch(value, sub) __sync_sub_and_fetch(value, sub)
#ifdef __arm__
#define sw_atomic_cpu_pause() __asm__ __volatile__("NOP");
#elif defined(__x86_64__)
#define sw_atomic_cpu_pause() __asm__ __volatile__("pause")
#elif defined(__aarch64__)
#define sw_atomic_cpu_pause() __asm__ __volatile__("yield")
#else
#define sw_atomic_cpu_pause()
#endif
#if 0
#define sw_spinlock_release(lock) __sync_lock_release(lock)
#else
#define sw_spinlock_release(lock) *(lock) = 0
#endif
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