blob: e2e3da8b20932989770e27aaff07cd7aacb52781 [file] [log] [blame]
/*
* Copyright 2005 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 "pc/mediamonitor.h"
#include "pc/channelmanager.h"
#include "rtc_base/checks.h"
namespace cricket {
enum {
MSG_MONITOR_POLL = 1,
MSG_MONITOR_START = 2,
MSG_MONITOR_STOP = 3,
MSG_MONITOR_SIGNAL = 4
};
MediaMonitor::MediaMonitor(rtc::Thread* worker_thread,
rtc::Thread* monitor_thread)
: worker_thread_(worker_thread),
monitor_thread_(monitor_thread), monitoring_(false), rate_(0) {
}
MediaMonitor::~MediaMonitor() {
monitoring_ = false;
monitor_thread_->Clear(this);
worker_thread_->Clear(this);
}
void MediaMonitor::Start(uint32_t milliseconds) {
rate_ = milliseconds;
if (rate_ < 100)
rate_ = 100;
worker_thread_->Post(RTC_FROM_HERE, this, MSG_MONITOR_START);
}
void MediaMonitor::Stop() {
worker_thread_->Post(RTC_FROM_HERE, this, MSG_MONITOR_STOP);
rate_ = 0;
}
void MediaMonitor::OnMessage(rtc::Message* message) {
rtc::CritScope cs(&crit_);
switch (message->message_id) {
case MSG_MONITOR_START:
RTC_DCHECK(rtc::Thread::Current() == worker_thread_);
if (!monitoring_) {
monitoring_ = true;
PollMediaChannel();
}
break;
case MSG_MONITOR_STOP:
RTC_DCHECK(rtc::Thread::Current() == worker_thread_);
if (monitoring_) {
monitoring_ = false;
worker_thread_->Clear(this);
}
break;
case MSG_MONITOR_POLL:
RTC_DCHECK(rtc::Thread::Current() == worker_thread_);
PollMediaChannel();
break;
case MSG_MONITOR_SIGNAL:
RTC_DCHECK(rtc::Thread::Current() == monitor_thread_);
Update();
break;
}
}
void MediaMonitor::PollMediaChannel() {
rtc::CritScope cs(&crit_);
RTC_DCHECK(rtc::Thread::Current() == worker_thread_);
GetStats();
// Signal the monitoring thread, start another poll timer
monitor_thread_->Post(RTC_FROM_HERE, this, MSG_MONITOR_SIGNAL);
worker_thread_->PostDelayed(RTC_FROM_HERE, rate_, this, MSG_MONITOR_POLL);
}
} // namespace cricket