| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright 2015 The WebRTC Project Authors. All rights reserved. | 2 * Copyright 2015 The WebRTC Project Authors. All rights reserved. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ | 9 */ |
| 10 | 10 |
| 11 #ifndef WEBRTC_BASE_BUFFERQUEUE_H_ | 11 #ifndef WEBRTC_BASE_BUFFERQUEUE_H_ |
| 12 #define WEBRTC_BASE_BUFFERQUEUE_H_ | 12 #define WEBRTC_BASE_BUFFERQUEUE_H_ |
| 13 | 13 |
| 14 #include <deque> | |
| 15 #include <vector> | |
| 16 | 14 |
| 17 #include "webrtc/base/buffer.h" | 15 // This header is deprecated and is just left here temporarily during |
| 18 #include "webrtc/base/constructormagic.h" | 16 // refactoring. See https://bugs.webrtc.org/7634 for more details. |
| 19 #include "webrtc/base/criticalsection.h" | 17 #include "webrtc/rtc_base/bufferqueue.h" |
| 20 | |
| 21 namespace rtc { | |
| 22 | |
| 23 class BufferQueue { | |
| 24 public: | |
| 25 // Creates a buffer queue with a given capacity and default buffer size. | |
| 26 BufferQueue(size_t capacity, size_t default_size); | |
| 27 virtual ~BufferQueue(); | |
| 28 | |
| 29 // Return number of queued buffers. | |
| 30 size_t size() const; | |
| 31 | |
| 32 // Clear the BufferQueue by moving all Buffers from |queue_| to |free_list_|. | |
| 33 void Clear(); | |
| 34 | |
| 35 // ReadFront will only read one buffer at a time and will truncate buffers | |
| 36 // that don't fit in the passed memory. | |
| 37 // Returns true unless no data could be returned. | |
| 38 bool ReadFront(void* data, size_t bytes, size_t* bytes_read); | |
| 39 | |
| 40 // WriteBack always writes either the complete memory or nothing. | |
| 41 // Returns true unless no data could be written. | |
| 42 bool WriteBack(const void* data, size_t bytes, size_t* bytes_written); | |
| 43 | |
| 44 protected: | |
| 45 // These methods are called when the state of the queue changes. | |
| 46 virtual void NotifyReadableForTest() {} | |
| 47 virtual void NotifyWritableForTest() {} | |
| 48 | |
| 49 private: | |
| 50 size_t capacity_; | |
| 51 size_t default_size_; | |
| 52 CriticalSection crit_; | |
| 53 std::deque<Buffer*> queue_ GUARDED_BY(crit_); | |
| 54 std::vector<Buffer*> free_list_ GUARDED_BY(crit_); | |
| 55 | |
| 56 RTC_DISALLOW_COPY_AND_ASSIGN(BufferQueue); | |
| 57 }; | |
| 58 | |
| 59 } // namespace rtc | |
| 60 | 18 |
| 61 #endif // WEBRTC_BASE_BUFFERQUEUE_H_ | 19 #endif // WEBRTC_BASE_BUFFERQUEUE_H_ |
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