92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
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/*
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* Copyright 2005 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/base/common.h"
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#include "webrtc/pc/channelmanager.h"
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#include "webrtc/pc/mediamonitor.h"
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namespace cricket {
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enum {
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MSG_MONITOR_POLL = 1,
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MSG_MONITOR_START = 2,
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MSG_MONITOR_STOP = 3,
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MSG_MONITOR_SIGNAL = 4
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};
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MediaMonitor::MediaMonitor(rtc::Thread* worker_thread,
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rtc::Thread* monitor_thread)
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: worker_thread_(worker_thread),
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monitor_thread_(monitor_thread), monitoring_(false), rate_(0) {
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}
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MediaMonitor::~MediaMonitor() {
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monitoring_ = false;
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monitor_thread_->Clear(this);
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worker_thread_->Clear(this);
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}
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void MediaMonitor::Start(uint32_t milliseconds) {
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rate_ = milliseconds;
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if (rate_ < 100)
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rate_ = 100;
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worker_thread_->Post(RTC_FROM_HERE, this, MSG_MONITOR_START);
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}
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void MediaMonitor::Stop() {
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worker_thread_->Post(RTC_FROM_HERE, this, MSG_MONITOR_STOP);
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rate_ = 0;
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}
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void MediaMonitor::OnMessage(rtc::Message* message) {
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rtc::CritScope cs(&crit_);
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switch (message->message_id) {
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case MSG_MONITOR_START:
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ASSERT(rtc::Thread::Current() == worker_thread_);
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if (!monitoring_) {
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monitoring_ = true;
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PollMediaChannel();
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}
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break;
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case MSG_MONITOR_STOP:
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ASSERT(rtc::Thread::Current() == worker_thread_);
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if (monitoring_) {
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monitoring_ = false;
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worker_thread_->Clear(this);
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}
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break;
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case MSG_MONITOR_POLL:
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ASSERT(rtc::Thread::Current() == worker_thread_);
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PollMediaChannel();
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break;
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case MSG_MONITOR_SIGNAL:
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ASSERT(rtc::Thread::Current() == monitor_thread_);
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Update();
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break;
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}
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}
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void MediaMonitor::PollMediaChannel() {
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rtc::CritScope cs(&crit_);
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ASSERT(rtc::Thread::Current() == worker_thread_);
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GetStats();
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// Signal the monitoring thread, start another poll timer
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monitor_thread_->Post(RTC_FROM_HERE, this, MSG_MONITOR_SIGNAL);
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worker_thread_->PostDelayed(RTC_FROM_HERE, rate_, this, MSG_MONITOR_POLL);
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}
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} // namespace cricket
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