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/*
* libjingle
* Copyright 2005 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/session/media/channelmanager.h"
#include "talk/session/media/mediamonitor.h"
#include "webrtc/base/common.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(this, MSG_MONITOR_START);
}
void MediaMonitor::Stop() {
worker_thread_->Post(this, MSG_MONITOR_STOP);
rate_ = 0;
}
void MediaMonitor::OnMessage(rtc::Message* message) {
rtc::CritScope cs(&crit_);
switch (message->message_id) {
case MSG_MONITOR_START:
ASSERT(rtc::Thread::Current() == worker_thread_);
if (!monitoring_) {
monitoring_ = true;
PollMediaChannel();
}
break;
case MSG_MONITOR_STOP:
ASSERT(rtc::Thread::Current() == worker_thread_);
if (monitoring_) {
monitoring_ = false;
worker_thread_->Clear(this);
}
break;
case MSG_MONITOR_POLL:
ASSERT(rtc::Thread::Current() == worker_thread_);
PollMediaChannel();
break;
case MSG_MONITOR_SIGNAL:
ASSERT(rtc::Thread::Current() == monitor_thread_);
Update();
break;
}
}
void MediaMonitor::PollMediaChannel() {
rtc::CritScope cs(&crit_);
ASSERT(rtc::Thread::Current() == worker_thread_);
GetStats();
// Signal the monitoring thread, start another poll timer
monitor_thread_->Post(this, MSG_MONITOR_SIGNAL);
worker_thread_->PostDelayed(rate_, this, MSG_MONITOR_POLL);
}
}
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