webrtc/rtc_base/bufferqueue.h
Yves Gerey 988cc0870b [Cleanup] Add missing #include. Remove useless ones.
This CL is the result of running include-what-you-use tool on part
of the code base (audio target and dependencies) plus manual fixes.

bug: webrtc:8311
Change-Id: I277d281ce943c3ecc1bd45fd8d83055931743604
Reviewed-on: https://webrtc-review.googlesource.com/c/106280
Commit-Queue: Yves Gerey <yvesg@google.com>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25311}
2018-10-23 11:32:56 +00:00

63 lines
1.9 KiB
C++

/*
* 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 RTC_BASE_BUFFERQUEUE_H_
#define RTC_BASE_BUFFERQUEUE_H_
#include <stddef.h>
#include <deque>
#include <vector>
#include "rtc_base/buffer.h"
#include "rtc_base/constructormagic.h"
#include "rtc_base/criticalsection.h"
#include "rtc_base/thread_annotations.h"
namespace rtc {
class BufferQueue {
public:
// Creates a buffer queue with a given capacity and default buffer size.
BufferQueue(size_t capacity, size_t default_size);
virtual ~BufferQueue();
// Return number of queued buffers.
size_t size() const;
// Clear the BufferQueue by moving all Buffers from |queue_| to |free_list_|.
void Clear();
// ReadFront will only read one buffer at a time and will truncate buffers
// that don't fit in the passed memory.
// Returns true unless no data could be returned.
bool ReadFront(void* data, size_t bytes, size_t* bytes_read);
// WriteBack always writes either the complete memory or nothing.
// Returns true unless no data could be written.
bool WriteBack(const void* data, size_t bytes, size_t* bytes_written);
protected:
// These methods are called when the state of the queue changes.
virtual void NotifyReadableForTest() {}
virtual void NotifyWritableForTest() {}
private:
size_t capacity_;
size_t default_size_;
CriticalSection crit_;
std::deque<Buffer*> queue_ RTC_GUARDED_BY(crit_);
std::vector<Buffer*> free_list_ RTC_GUARDED_BY(crit_);
RTC_DISALLOW_COPY_AND_ASSIGN(BufferQueue);
};
} // namespace rtc
#endif // RTC_BASE_BUFFERQUEUE_H_