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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/libwebrtc/rtc_base/buffer_queue.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/rtc_base/buffer_queue.h')
-rw-r--r-- | third_party/libwebrtc/rtc_base/buffer_queue.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/buffer_queue.h b/third_party/libwebrtc/rtc_base/buffer_queue.h new file mode 100644 index 0000000000..b018e160a1 --- /dev/null +++ b/third_party/libwebrtc/rtc_base/buffer_queue.h @@ -0,0 +1,70 @@ +/* + * 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_BUFFER_QUEUE_H_ +#define RTC_BASE_BUFFER_QUEUE_H_ + +#include <stddef.h> + +#include <deque> +#include <vector> + +#include "api/sequence_checker.h" +#include "rtc_base/buffer.h" +#include "rtc_base/system/no_unique_address.h" +#include "rtc_base/thread_annotations.h" + +namespace rtc { + +class BufferQueue final { + public: + // Creates a buffer queue with a given capacity and default buffer size. + BufferQueue(size_t capacity, size_t default_size); + ~BufferQueue(); + + BufferQueue(const BufferQueue&) = delete; + BufferQueue& operator=(const BufferQueue&) = delete; + + // 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); + + bool is_writable() const { + RTC_DCHECK_RUN_ON(&sequence_checker_); + return queue_.size() < capacity_; + } + + bool is_readable() const { + RTC_DCHECK_RUN_ON(&sequence_checker_); + return !queue_.empty(); + } + + private: + RTC_NO_UNIQUE_ADDRESS webrtc::SequenceChecker sequence_checker_; + const size_t capacity_; + const size_t default_size_; + std::deque<Buffer*> queue_ RTC_GUARDED_BY(sequence_checker_); + std::vector<Buffer*> free_list_ RTC_GUARDED_BY(sequence_checker_); +}; + +} // namespace rtc + +#endif // RTC_BASE_BUFFER_QUEUE_H_ |