61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
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/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "atomic32.h"
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#include <assert.h>
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#include <libkern/OSAtomic.h>
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#include <stdlib.h>
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#include "common_types.h"
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namespace webrtc {
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Atomic32::Atomic32(WebRtc_Word32 initialValue) : _value(initialValue)
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{
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assert(Is32bitAligned());
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}
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Atomic32::~Atomic32()
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{
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}
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WebRtc_Word32 Atomic32::operator++()
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{
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return OSAtomicIncrement32Barrier(&_value);
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}
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WebRtc_Word32 Atomic32::operator--()
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{
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return OSAtomicDecrement32Barrier(&_value);
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}
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WebRtc_Word32 Atomic32::operator+=(WebRtc_Word32 value)
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{
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return OSAtomicAdd32Barrier(value, &_value);
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}
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WebRtc_Word32 Atomic32::operator-=(WebRtc_Word32 value)
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{
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return OSAtomicAdd32Barrier(-value, &_value);
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}
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bool Atomic32::CompareExchange(WebRtc_Word32 newValue,
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WebRtc_Word32 compareValue)
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{
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return OSAtomicCompareAndSwap32Barrier(compareValue, newValue, &_value);
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}
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WebRtc_Word32 Atomic32::Value() const
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{
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return _value;
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}
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} // namespace webrtc
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