Ejemplo n.º 1
0
/**
 *  \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();
}
Ejemplo n.º 2
0
/** \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();
}