void
tr_upnpPulse( tr_upnp_t * upnp )
{
tr_upnp_device_t ** ii;
tr_lockLock( &upnp->lock );
if( upnp->active )
{
/* pulse on all known devices */
upnp->discovering = 1;
for( ii = &upnp->devices; NULL != *ii; ii = &(*ii)->next )
{
if( devicePulse( *ii, upnp->fdlimit, upnp->port ) )
{
upnp->discovering = 0;
}
}
/* send an SSDP discover message */
if( upnp->discovering &&
upnp->lastdelay + upnp->lastdiscover < tr_date() )
{
upnp->outfd = sendSSDP( upnp->fdlimit, upnp->outfd );
upnp->lastdiscover = tr_date();
upnp->lastdelay = MIN( upnp->lastdelay * 2, SSDP_MAX_DELAY );
}
/* try to receive SSDP messages */
watchSSDP( &upnp->devices, upnp->infd );
if( watchSSDP( &upnp->devices, upnp->outfd ) )
{
killSock( upnp->fdlimit, &upnp->outfd );
}
}
else
{
/* delete all mappings then delete devices */
ii = &upnp->devices;
while( NULL != *ii )
{
if( deviceStop( *ii ) )
{
deviceRemove( ii, upnp->fdlimit );
}
else
{
devicePulse( *ii, upnp->fdlimit, 0 );
ii = &(*ii)->next;
}
}
}
tr_lockUnlock( &upnp->lock );
}
void Engine::onDeviceStop() {
emit deviceStop();
}
