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Unified Diff: include/ports/SkAtomics_std.h

Issue 1441773002: SkAtomic: always use std::atomic (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years, 1 month ago
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Index: include/ports/SkAtomics_std.h
diff --git a/include/ports/SkAtomics_std.h b/include/ports/SkAtomics_std.h
deleted file mode 100644
index 163efb78c0c1019942986ea4c3eaca8d5a049bb5..0000000000000000000000000000000000000000
--- a/include/ports/SkAtomics_std.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkAtomics_std_DEFINED
-#define SkAtomics_std_DEFINED
-
-// We try not to depend on the C++ standard library,
-// but these uses of <atomic> should all inline, so we don't feel to bad here.
-#include <atomic>
-
-template <typename T>
-T sk_atomic_load(const T* ptr, sk_memory_order mo) {
- SkASSERT(mo == sk_memory_order_relaxed ||
- mo == sk_memory_order_seq_cst ||
- mo == sk_memory_order_acquire ||
- mo == sk_memory_order_consume);
- const std::atomic<T>* ap = reinterpret_cast<const std::atomic<T>*>(ptr);
- return std::atomic_load_explicit(ap, (std::memory_order)mo);
-}
-
-template <typename T>
-void sk_atomic_store(T* ptr, T val, sk_memory_order mo) {
- SkASSERT(mo == sk_memory_order_relaxed ||
- mo == sk_memory_order_seq_cst ||
- mo == sk_memory_order_release);
- std::atomic<T>* ap = reinterpret_cast<std::atomic<T>*>(ptr);
- return std::atomic_store_explicit(ap, val, (std::memory_order)mo);
-}
-
-template <typename T>
-T sk_atomic_fetch_add(T* ptr, T val, sk_memory_order mo) {
- // All values of mo are valid.
- std::atomic<T>* ap = reinterpret_cast<std::atomic<T>*>(ptr);
- return std::atomic_fetch_add_explicit(ap, val, (std::memory_order)mo);
-}
-
-template <typename T>
-T sk_atomic_fetch_sub(T* ptr, T val, sk_memory_order mo) {
- // All values of mo are valid.
- std::atomic<T>* ap = reinterpret_cast<std::atomic<T>*>(ptr);
- return std::atomic_fetch_sub_explicit(ap, val, (std::memory_order)mo);
-}
-
-template <typename T>
-bool sk_atomic_compare_exchange(T* ptr, T* expected, T desired,
- sk_memory_order success,
- sk_memory_order failure) {
- // All values of success are valid.
- SkASSERT(failure == sk_memory_order_relaxed ||
- failure == sk_memory_order_seq_cst ||
- failure == sk_memory_order_acquire ||
- failure == sk_memory_order_consume);
- SkASSERT(failure <= success);
- std::atomic<T>* ap = reinterpret_cast<std::atomic<T>*>(ptr);
- return std::atomic_compare_exchange_strong_explicit(ap, expected, desired,
- (std::memory_order)success,
- (std::memory_order)failure);
-}
-
-template <typename T>
-T sk_atomic_exchange(T* ptr, T val, sk_memory_order mo) {
- // All values of mo are valid.
- std::atomic<T>* ap = reinterpret_cast<std::atomic<T>*>(ptr);
- return std::atomic_exchange_explicit(ap, val, (std::memory_order)mo);
-}
-
-#endif//SkAtomics_std_DEFINED
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