blob: 7c77d092b55f694663f0f8e54038ccb13770c95c [file] [log] [blame]
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include "webrtc/system_wrappers/include/atomic32.h"
#include <assert.h>
#include <libkern/OSAtomic.h>
#include <stdlib.h>
#include "webrtc/common_types.h"
namespace webrtc {
Atomic32::Atomic32(int32_t initial_value)
: value_(initial_value) {
Atomic32::~Atomic32() {
int32_t Atomic32::operator++() {
return OSAtomicIncrement32Barrier(&value_);
int32_t Atomic32::operator--() {
return OSAtomicDecrement32Barrier(&value_);
int32_t Atomic32::operator+=(int32_t value) {
return OSAtomicAdd32Barrier(value, &value_);
int32_t Atomic32::operator-=(int32_t value) {
return OSAtomicAdd32Barrier(-value, &value_);
bool Atomic32::CompareExchange(int32_t new_value, int32_t compare_value) {
return OSAtomicCompareAndSwap32Barrier(compare_value, new_value, &value_);
} // namespace webrtc