webrtc_m130/webrtc/rtc_base/bufferqueue.cc
Henrik Kjellander 6776518bea Move webrtc/{base => rtc_base}
This refactoring takes a careful approach to avoid rushing the change:
* stub headers are left in all the old locations of webrtc/base
* existing GN targets are kept and now just forward to the moved ones
  using public_deps.
The only exception to the above is the base_java target and its .java files,
which were moved to webrtc/rtc_base right away since it's not possible
to use public_deps for android_library.
To avoid breaking builds, a temporary Dummy.java file was added to
the new intermediate target in webrtc/rtc_base:base_java as well to avoid
hitting a GN assert in the android_library template.

The above approach should make the transition smooth without breaking
downstream.

A helper script was created (https://codereview.webrtc.org/2879203002/)
and was run like this:
stub-headers.py -s webrtc/base -d webrtc/rtc_base -i 7634
stub-headers.py -s webrtc/base/numerics -d webrtc/rtc_base/numerics -i 7634

Fixed invalid header guards in the following files:
webrtc/base/base64.h
webrtc/base/cryptstring.h
webrtc/base/event.h
webrtc/base/flags.h
webrtc/base/httpbase.h
webrtc/base/httpcommon-inl.h
webrtc/base/httpcommon.h
webrtc/base/httpserver.h
webrtc/base/logsinks.h
webrtc/base/macutils.h
webrtc/base/nattypes.h
webrtc/base/openssladapter.h
webrtc/base/opensslstreamadapter.h
webrtc/base/pathutils.h
webrtc/base/physicalsocketserver.h
webrtc/base/proxyinfo.h
webrtc/base/sigslot.h
webrtc/base/sigslotrepeater.h
webrtc/base/socket.h
webrtc/base/socketaddresspair.h
webrtc/base/socketfactory.h
webrtc/base/stringutils.h
webrtc/base/testbase64.h
webrtc/base/testutils.h
webrtc/base/transformadapter.h
webrtc/base/win32filesystem.h

Added new header guards to:
sslroots.h
testbase64.h

BUG=webrtc:7634
NOTRY=True
NOPRESUBMIT=True
R=kwiberg@webrtc.org

Review-Url: https://codereview.webrtc.org/2877023002 .
Cr-Commit-Position: refs/heads/master@{#18816}
2017-06-28 18:58:10 +00:00

95 lines
2.1 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.
*/
#include "webrtc/base/bufferqueue.h"
#include <algorithm>
namespace rtc {
BufferQueue::BufferQueue(size_t capacity, size_t default_size)
: capacity_(capacity), default_size_(default_size) {
}
BufferQueue::~BufferQueue() {
CritScope cs(&crit_);
for (Buffer* buffer : queue_) {
delete buffer;
}
for (Buffer* buffer : free_list_) {
delete buffer;
}
}
size_t BufferQueue::size() const {
CritScope cs(&crit_);
return queue_.size();
}
void BufferQueue::Clear() {
CritScope cs(&crit_);
while (!queue_.empty()) {
free_list_.push_back(queue_.front());
queue_.pop_front();
}
}
bool BufferQueue::ReadFront(void* buffer, size_t bytes, size_t* bytes_read) {
CritScope cs(&crit_);
if (queue_.empty()) {
return false;
}
bool was_writable = queue_.size() < capacity_;
Buffer* packet = queue_.front();
queue_.pop_front();
bytes = std::min(bytes, packet->size());
memcpy(buffer, packet->data(), bytes);
if (bytes_read) {
*bytes_read = bytes;
}
free_list_.push_back(packet);
if (!was_writable) {
NotifyWritableForTest();
}
return true;
}
bool BufferQueue::WriteBack(const void* buffer, size_t bytes,
size_t* bytes_written) {
CritScope cs(&crit_);
if (queue_.size() == capacity_) {
return false;
}
bool was_readable = !queue_.empty();
Buffer* packet;
if (!free_list_.empty()) {
packet = free_list_.back();
free_list_.pop_back();
} else {
packet = new Buffer(bytes, default_size_);
}
packet->SetData(static_cast<const uint8_t*>(buffer), bytes);
if (bytes_written) {
*bytes_written = bytes;
}
queue_.push_back(packet);
if (!was_readable) {
NotifyReadableForTest();
}
return true;
}
} // namespace rtc