int CXBMCRenderManager::WaitForBuffer(volatile bool& bStop, int timeout)
{
CSingleLock lock2(m_presentlock);
// check if gui is active and discard buffer if not
// this keeps videoplayer going
if (!m_bRenderGUI || !g_application.GetRenderGUI())
{
m_bRenderGUI = false;
double presenttime = 0;
double clock = GetPresentTime();
if (!m_queued.empty())
{
int idx = m_queued.front();
presenttime = m_Queue[idx].timestamp;
}
else
presenttime = clock + 0.02;
int sleeptime = (presenttime - clock) * 1000;
if (sleeptime < 0)
sleeptime = 0;
sleeptime = std::min(sleeptime, 20);
m_presentevent.wait(lock2, sleeptime);
DiscardBuffer();
return 0;
}
XbmcThreads::EndTime endtime(timeout);
while(m_free.empty())
{
m_presentevent.wait(lock2, std::min(50, timeout));
if(endtime.IsTimePast() || bStop)
{
if (timeout != 0 && !bStop)
{
CLog::Log(LOGWARNING, "CRenderManager::WaitForBuffer - timeout waiting for buffer");
m_waitForBufferCount++;
if (m_waitForBufferCount > 2)
{
m_bRenderGUI = false;
}
}
return -1;
}
}
m_waitForBufferCount = 0;
// make sure overlay buffer is released, this won't happen on AddOverlay
m_overlays.Release(m_free.front());
// return buffer level
return m_queued.size() + m_discard.size();;
}
ssize_t
DataSocketIO::ReceiveData(int aFd)
{
MOZ_ASSERT(aFd >= 0);
UnixSocketIOBuffer* incoming;
nsresult rv = QueryReceiveBuffer(&incoming);
if (NS_FAILED(rv)) {
/* an error occured */
GetConsumerThread()->PostTask(FROM_HERE,
new SocketRequestClosingTask(this));
return -1;
}
ssize_t res = incoming->Receive(aFd);
if (res < 0) {
/* an I/O error occured */
DiscardBuffer();
GetConsumerThread()->PostTask(FROM_HERE,
new SocketRequestClosingTask(this));
return -1;
} else if (!res) {
/* EOF or peer shut down sending */
DiscardBuffer();
GetConsumerThread()->PostTask(FROM_HERE,
new SocketRequestClosingTask(this));
return 0;
}
#ifdef MOZ_TASK_TRACER
/* Make unix socket creation events to be the source events of TaskTracer,
* and originate the rest correlation tasks from here.
*/
AutoSourceEvent taskTracerEvent(SourceEventType::Unixsocket);
#endif
ConsumeBuffer();
return res;
}