void DviSubscription::Remove()
{
iLock.Wait();
DviService* service = iService;
if (service != NULL) {
service->AddRef();
}
iLock.Signal();
if (service != NULL) {
service->RemoveSubscription(iSid);
service->RemoveRef();
}
}
void CpiDeviceDv::Unsubscribe(CpiSubscription& aSubscription, const Brx& aSid)
{
iLock.Wait();
Brn sid(aSid);
SubscriptionMap::iterator it = iSubscriptions.find(sid);
if (it == iSubscriptions.end()) {
iLock.Signal();
return;
}
Subscription* subscription = it->second;
iLock.Signal();
DviService* service = iDeviceDv.ServiceReference(aSubscription.ServiceType());
if (service != NULL) {
service->RemoveSubscription(aSid);
service->RemoveRef();
}
subscription->iCp = NULL;
subscription->iDv->RemoveRef();
// can't safely access subscription now - RemoveRef() above may have resulted in it being deleted
}
void DviSessionUpnp::Unsubscribe()
{
LOG(kDvEvent, "Unsubscribe request: ");
LOG(kDvEvent, iHeaderSid.Sid());
LOG(kDvEvent, "\n");
if (!iHeaderSid.Received()) {
LOG2(kDvEvent, kError, "Unsubscribe failed - no sid\n");
Error(HttpStatus::kPreconditionFailed);
}
DviDevice* device;
DviService* service;
ParseRequestUri(DviProtocolUpnp::kEventUrlTail, &device, &service);
if (device == NULL || service == NULL) {
LOG2(kDvEvent, kError, "Unsubscribe failed - device=%p, service=%p\n", device, service);
Error(HttpStatus::kPreconditionFailed);
}
DviSubscription* subscription = DviSubscriptionManager::Find(iHeaderSid.Sid());
if (subscription == NULL) {
LOG2(kDvEvent, kError, "Unsubscribe failed - couldn't match sid ");
LOG2(kDvEvent, kError, iHeaderSid.Sid());
LOG2(kDvEvent, kError, "\n");
Error(HttpStatus::kPreconditionFailed);
}
service->RemoveSubscription(iHeaderSid.Sid());
if (iHeaderExpect.Continue()) {
iWriterResponse->WriteStatus(HttpStatus::kContinue, Http::eHttp11);
iWriterResponse->WriteFlush();
}
iResponseStarted = true;
iWriterResponse->WriteStatus(HttpStatus::kOk, Http::eHttp11);
iWriterResponse->WriteHeader(Http::kHeaderConnection, Http::kConnectionClose);
iWriterResponse->WriteFlush();
iResponseEnded = true;
LOG(kDvEvent, "Unsubscribe complete: ");
LOG(kDvEvent, iHeaderSid.Sid());
LOG(kDvEvent, "\n");
}