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/*
* Copyright (c) 2013 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.
*/
#ifndef WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_SINGLE_RW_FIFO_H_
#define WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_SINGLE_RW_FIFO_H_
namespace webrtc {
// Implements a lock-free FIFO losely based on
// http://src.chromium.org/viewvc/chrome/trunk/src/media/base/audio_fifo.cc
// Note that this class assumes there is one producer (writer) and one
// consumer (reader) thread.
class SingleRwFifo {
public:
explicit SingleRwFifo(int capacity);
~SingleRwFifo();
void Push(int8_t* mem);
int8_t* Pop();
void Clear();
int size() { return size_; }
int capacity() const { return capacity_; }
private:
std::unique_ptr<int8_t* []> queue_;
int capacity_;
std::atomic<int32_t> size_;
int read_pos_;
int write_pos_;
};
} // namespace webrtc
#endif // WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_SINGLE_RW_FIFO_H_
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