int Ts2::Network::RouteManager::CancelDataPackets(u32 srcVtId)
{
int err = 0;
{
MutexAutoLock lock(&mutex);
state.clients++;
if (state.stop == STOP_STATE_STOPPING) {
LOG_WARN("RouteManager[%p]: Method called after Stop", this);
}
// Removing an element from the middle of a queue maybe expensive.
// Thus, instead of removing it, we will simply replace the pointer to a Packet obj with a NULL pointer.
// Dequeue code (in packetThreadMain()) will check the pointer value and ignore if NULL.
std::deque<std::pair<Packet*, VPLTime_t> >::iterator it;
for (it = packetQueue.begin(); it != packetQueue.end(); it++) {
Packet *packet = it->first;
if (packet && (packet->GetPktType() == TS_PKT_DATA) && (packet->GetSrcVtId() == srcVtId)) {
delete packet; // destroy Packet obj
it->first = NULL; // replace pointer with NULL pointer
}
}
}
{
// If the worker thread is trying to send, wait until it is done.
// This is necessary, since it may be currently processing a packet that
// would have been cancelled by the loop above.
MutexAutoLock lock(&mutex_packetThreadSending);
while (packetThreadSending) {
err = VPLCond_TimedWait(&cond_packetThreadSending, &mutex_packetThreadSending, VPL_TIMEOUT_NONE);
if (err) {
LOG_ERROR("RouteManager[%p]: CondVar failed: err %d", this, err);
err = 0; // Reset error and exit.
break;
}
}
}
{
MutexAutoLock lock(&mutex);
state.clients--;
if (state.clients == 0) {
VPLCond_Broadcast(&cond_state_noClients);
}
}
return err;
}
