Reland "Move webrtc/{base => rtc_base}" (https://codereview.webrtc.org/2877023002)
Reland the base->rtc_base without adding stub headers (will be
done in follow-up CL). This preserves git blame history of all files.
BUG=webrtc:7634
NOTRY=True
TBR=kwiberg@webrtc.org
Change-Id: Iea3bb6f3f67b8374c96337b63e8f5aa3e6181012
Reviewed-on: https://chromium-review.googlesource.com/554611
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#18821}diff --git a/webrtc/rtc_base/bufferqueue.h b/webrtc/rtc_base/bufferqueue.h
new file mode 100644
index 0000000..7db2c8c
--- /dev/null
+++ b/webrtc/rtc_base/bufferqueue.h
@@ -0,0 +1,61 @@
+/*
+ * 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_RTC_BASE_BUFFERQUEUE_H_
+#define WEBRTC_RTC_BASE_BUFFERQUEUE_H_
+
+#include <deque>
+#include <vector>
+
+#include "webrtc/base/buffer.h"
+#include "webrtc/base/constructormagic.h"
+#include "webrtc/base/criticalsection.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_ GUARDED_BY(crit_);
+ std::vector<Buffer*> free_list_ GUARDED_BY(crit_);
+
+ RTC_DISALLOW_COPY_AND_ASSIGN(BufferQueue);
+};
+
+} // namespace rtc
+
+#endif // WEBRTC_RTC_BASE_BUFFERQUEUE_H_