/**
* \brief This runs the event loop for EITScanner until 'exitThread' is true.
*/
void EITScanner::run(void)
{
static const uint sz[] = { 2000, 1800, 1600, 1400, 1200, };
static const float rt[] = { 0.0f, 0.2f, 0.4f, 0.6f, 0.8f, };
lock.lock();
MythTimer t;
uint eitCount = 0;
while (!exitThread)
{
lock.unlock();
uint list_size = eitHelper->GetListSize();
float rate = 1.0f;
for (uint i = 0; i < 5; i++)
{
if (list_size >= sz[i])
{
rate = rt[i];
break;
}
}
lock.lock();
if (eitSource)
eitSource->SetEITRate(rate);
lock.unlock();
if (list_size)
{
eitCount += eitHelper->ProcessEvents();
t.start();
}
// Tell the scheduler to run if
// we are in passive scan
// and there have been updated events since the last scheduler run
// but not in the last 60 seconds
if (!activeScan && eitCount && (t.elapsed() > 60 * 1000))
{
LOG(VB_EIT, LOG_INFO,
LOC_ID + QString("Added %1 EIT Events").arg(eitCount));
eitCount = 0;
RescheduleRecordings();
}
// Is it time to move to the next transport in active scan?
if (activeScan && (MythDate::current() > activeScanNextTrig))
{
// if there have been any new events, tell scheduler to run.
if (eitCount)
{
LOG(VB_EIT, LOG_INFO,
LOC_ID + QString("Added %1 EIT Events").arg(eitCount));
eitCount = 0;
RescheduleRecordings();
}
if (activeScanNextChan == activeScanChannels.end())
activeScanNextChan = activeScanChannels.begin();
if (!(*activeScanNextChan).isEmpty())
{
eitHelper->WriteEITCache();
if (rec->QueueEITChannelChange(*activeScanNextChan))
{
eitHelper->SetChannelID(ChannelUtil::GetChanID(
rec->GetSourceID(), *activeScanNextChan));
LOG(VB_EIT, LOG_INFO,
LOC_ID + QString("Now looking for EIT data on "
"multiplex of channel %1")
.arg(*activeScanNextChan));
}
}
activeScanNextTrig = MythDate::current()
.addSecs(activeScanTrigTime);
++activeScanNextChan;
// 24 hours ago
eitHelper->PruneEITCache(activeScanNextTrig.toTime_t() - 86400);
}
lock.lock();
if ((activeScan || activeScanStopped) && !exitThread)
exitThreadCond.wait(&lock, 400); // sleep up to 400 ms.
if (!activeScan && !activeScanStopped)
{
activeScanStopped = true;
activeScanCond.wakeAll();
}
}
if (eitCount) /* some events have been handled since the last schedule request */
{
eitCount = 0;
RescheduleRecordings();
}
activeScanStopped = true;
activeScanCond.wakeAll();
lock.unlock();
}
/** \fn EITScanner::RunEventLoop(void)
* \brief This runs the event loop for EITScanner until 'exitThread' is true.
*/
void EITScanner::RunEventLoop(void)
{
static const uint sz[] = { 2000, 1800, 1600, 1400, 1200, };
static const float rt[] = { 0.0f, 0.2f, 0.4f, 0.6f, 0.8f, };
lock.lock();
exitThread = false;
MythTimer t;
uint eitCount = 0;
while (!exitThread)
{
lock.unlock();
uint list_size = eitHelper->GetListSize();
float rate = 1.0f;
for (uint i = 0; i < 5; i++)
{
if (list_size >= sz[i])
{
rate = rt[i];
break;
}
}
lock.lock();
if (eitSource)
eitSource->SetEITRate(rate);
lock.unlock();
if (list_size)
{
eitCount += eitHelper->ProcessEvents();
t.start();
}
// If there have been any new events and we haven't
// seen any in a while, tell scheduler to run.
if (eitCount && (t.elapsed() > 60 * 1000))
{
VERBOSE(VB_EIT, LOC_ID + "Added "<<eitCount<<" EIT Events");
eitCount = 0;
RescheduleRecordings();
}
if (activeScan && (QDateTime::currentDateTime() > activeScanNextTrig))
{
// if there have been any new events, tell scheduler to run.
if (eitCount)
{
VERBOSE(VB_EIT, LOC_ID + "Added "<<eitCount<<" EIT Events");
eitCount = 0;
RescheduleRecordings();
}
if (activeScanNextChan == activeScanChannels.end())
activeScanNextChan = activeScanChannels.begin();
if (!(*activeScanNextChan).isEmpty())
{
eitHelper->WriteEITCache();
rec->SetChannel(*activeScanNextChan, TVRec::kFlagEITScan);
VERBOSE(VB_EIT, LOC_ID +
QString("Now looking for EIT data on "
"multiplex of channel %1")
.arg(*activeScanNextChan));
}
activeScanNextTrig = QDateTime::currentDateTime()
.addSecs(activeScanTrigTime);
activeScanNextChan++;
// 24 hours ago
eitHelper->PruneEITCache(activeScanNextTrig.toTime_t() - 86400);
}
lock.lock();
if (!exitThread)
exitThreadCond.wait(&lock, 400); // sleep up to 400 ms.
}
lock.unlock();
}
