// ChangeFanRepresentaion is an observation function,
// which notifies any changes to the resource to stack
// via notifyObservers
void *ChangeFanRepresentation (void *param)
{
FanResource *fanPtr = (FanResource *) param;
// This function continuously monitors for the changes
while (1)
{
sleep (5);
if (gObservation)
{
// If under observation if there are any changes to the fan resource
// we call notifyObservors
//
// For demostration we are changing the power value and notifying.
fanPtr->m_power += 10;
cout << "\nPower updated to : " << fanPtr->m_power << endl;
cout << "Notifying observers with resource handle: " << fanPtr->getHandle() << endl;
OCStackResult result = OC_STACK_OK;
if (isListOfObservers)
{
std::shared_ptr<OCResourceResponse> resourceResponse(new OCResourceResponse());
resourceResponse->setErrorCode(200);
resourceResponse->setResourceRepresentation(fanPtr->get(), DEFAULT_INTERFACE);
result = OCPlatform::notifyListOfObservers( fanPtr->getHandle(),
fanPtr->m_interestedObservers,
resourceResponse);
}
else
{
result = OCPlatform::notifyAllObservers(fanPtr->getHandle());
}
if (OC_STACK_NO_OBSERVERS == result)
{
cout << "No More observers, stopping notifications" << endl;
gObservation = 0;
}
}
}
return NULL;
}
void * handleSlowResponse(void *param, std::shared_ptr< OCResourceRequest > pRequest)
{
// This function handles slow response case
FanResource* fanPtr = (FanResource*) param;
// Induce a case for slow response by using sleep
std::cout << "SLOW response" << std::endl;
sleep(10);
auto pResponse = std::make_shared< OC::OCResourceResponse >();
pResponse->setRequestHandle(pRequest->getRequestHandle());
pResponse->setResourceHandle(pRequest->getResourceHandle());
pResponse->setResourceRepresentation(fanPtr->get());
pResponse->setErrorCode(200);
pResponse->setResponseResult(OC_EH_OK);
// Set the slow response flag back to false
isSlowResponse = false;
OCPlatform::sendResponse(pResponse);
return NULL;
}