blob: 4941fccf2e1c6233584c21588e34991a312e41e3 [file] [log] [blame]
/*
* Copyright 2015 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_BASE_BUFFERQUEUE_H_
#define WEBRTC_BASE_BUFFERQUEUE_H_
#include <deque>
#include <vector>
#include "webrtc/base/buffer.h"
#include "webrtc/base/criticalsection.h"
namespace rtc {
class BufferQueue {
public:
// Creates a buffer queue queue with a given capacity and default buffer size.
BufferQueue(size_t capacity, size_t default_size);
~BufferQueue();
// Return number of queued buffers.
size_t size() const;
// ReadFront will only read one buffer at a time and will truncate buffers
// that don't fit in the passed memory.
bool ReadFront(void* data, size_t bytes, size_t* bytes_read);
// WriteBack always writes either the complete memory or nothing.
bool WriteBack(const void* data, size_t bytes, size_t* bytes_written);
private:
size_t capacity_;
size_t default_size_;
std::deque<Buffer*> queue_;
std::vector<Buffer*> free_list_;
mutable CriticalSection crit_; // object lock
RTC_DISALLOW_COPY_AND_ASSIGN(BufferQueue);
};
} // namespace rtc
#endif // WEBRTC_BASE_BUFFERQUEUE_H_