1/*
2 * Copyright 2014 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef SkBarriers_tsan_DEFINED
9#define SkBarriers_tsan_DEFINED
10
11static inline void sk_compiler_barrier() { asm volatile("" : : : "memory"); }
12
13template <typename T>
14T sk_acquire_load(T* ptr) {
15    SkASSERT(__atomic_always_lock_free(sizeof(T), ptr));
16    return __atomic_load_n(ptr, __ATOMIC_ACQUIRE);
17}
18
19template <typename T>
20T sk_consume_load(T* ptr) {
21    SkASSERT(__atomic_always_lock_free(sizeof(T), ptr));
22    return __atomic_load_n(ptr, __ATOMIC_CONSUME);
23}
24
25template <typename T>
26void sk_release_store(T* ptr, T val) {
27    SkASSERT(__atomic_always_lock_free(sizeof(T), ptr));
28    return __atomic_store_n(ptr, val, __ATOMIC_RELEASE);
29}
30
31#endif//SkBarriers_tsan_DEFINED
32