// ChangeLightRepresentaion is an observation function,
// which notifies any changes to the resource to stack
// via notifyObservers
void * ChangeLightRepresentation (void *param)
{
LightResource* lightPtr = (LightResource*) param;
// This function continuously monitors for the changes
while (1)
{
sleep (3);
if (gObservation)
{
// If under observation if there are any changes to the light resource
// we call notifyObservors
//
// For demostration we are changing the power value and notifying.
lightPtr->m_power += 10;
cout << "\nPower updated to : " << lightPtr->m_power << endl;
cout << "Notifying observers with resource handle: " << lightPtr->getHandle() << endl;
OCStackResult result = OC_STACK_OK;
if(isListOfObservers)
{
std::shared_ptr<OCResourceResponse> resourceResponse =
{std::make_shared<OCResourceResponse>()};
resourceResponse->setErrorCode(200);
resourceResponse->setResourceRepresentation(lightPtr->get(), DEFAULT_INTERFACE);
result = OCPlatform::notifyListOfObservers( lightPtr->getHandle(),
lightPtr->m_interestedObservers,
resourceResponse);
}
else
{
result = OCPlatform::notifyAllObservers(lightPtr->getHandle());
}
if(OC_STACK_NO_OBSERVERS == result)
{
cout << "No More observers, stopping notifications" << endl;
gObservation = 0;
}
}
}
return NULL;
}
int main(int argc, char* argv[])
{
// Create PlatformConfig object
PlatformConfig cfg {
OC::ServiceType::InProc,
OC::ModeType::Server,
"0.0.0.0", // By setting to "0.0.0.0", it binds to all available interfaces
0, // Uses randomly available port
OC::QualityOfService::LowQos
};
OCPlatform::Configure(cfg);
try
{
// Create the instance of the resource class
// (in this case instance of class 'LightResource').
LightResource myLight;
// Invoke createResource function of class light.
myLight.createResource();
myLight.addType(std::string("core.brightlight"));
myLight.addInterface(std::string("oc.mi.ll"));
// A condition variable will free the mutex it is given, then do a non-
// intensive block until 'notify' is called on it. In this case, since we
// don't ever call cv.notify, this should be a non-processor intensive version
// of while(true);
std::mutex blocker;
std::condition_variable cv;
std::unique_lock<std::mutex> lock(blocker);
cv.wait(lock);
}
catch(OCException& e)
{
oclog() << "Exception in main: "<< e.what();
}
// No explicit call to stop the platform.
// When OCPlatform::destructor is invoked, internally we do platform cleanup
return 0;
}
void * handleSlowResponse (void *param, std::shared_ptr<OCResourceRequest> pRequest)
{
// This function handles slow response case
LightResource* lightPtr = (LightResource*) 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(lightPtr->get());
pResponse->setErrorCode(200);
pResponse->setResponseResult(OC_EH_OK);
// Set the slow response flag back to false
isSlowResponse = false;
OCPlatform::sendResponse(pResponse);
return NULL;
}
int main()
{
// Create PlatformConfig object
PlatformConfig cfg {
OC::ServiceType::InProc,
OC::ModeType::Server,
"0.0.0.0", // By setting to "0.0.0.0", it binds to all available interfaces
0, // Uses randomly available port
OC::QualityOfService::LowQos
};
OCPlatform::Configure(cfg);
try
{
using namespace OC::OCPlatform;
// Time to Live is 30 seconds
startPresence(30);
// Invoke createResource function of class light.
myLightResource.createResource();
std :: cout << "Creating first resource of type \"core.light\"" << std :: endl;
std :: cout << "Will start creating/deleting resources for presence in 10 seconds.\n";
sleep(10);
std :: cout << "\nCreating the second resource of type \"core.light\"" << std :: endl;
sleep(1);
myLightResource.createResource2();
std :: cout << "Stopping presence\n" << std :: endl;
sleep(1);
stopPresence();
std :: cout << "Restarting presence\n" << std :: endl;
sleep(1);
startPresence(30);
std :: cout << "Creating a third resource of type \"core.light\"\n" << std :: endl;
sleep(1);
myLightResource.createResource3();
std :: cout << "Creating two non-operational resources.\"\n" << std :: endl;
sleep(1);
createPresenceResources();
// A condition variable will free the mutex it is given, then do a non-
// intensive block until 'notify' is called on it. In this case, since we
// don't ever call cv.notify, this should be a non-processor intensive version
// of while(true);
std::mutex blocker;
std::condition_variable cv;
std::unique_lock<std::mutex> lock(blocker);
cv.wait(lock);
}
catch(OCException& e)
{
oclog() << "Exception in main: "<< e.what();
}
// No explicit call to stop the platform.
// When OCPlatform destructor is invoked, internally we do platform cleanup
return 0;
}
int main(int argc, char* argv[])
{
PrintUsage();
OCPersistentStorage ps {client_open, fread, fwrite, fclose, unlink };
if (argc == 1)
{
isListOfObservers = false;
isSecure = false;
}
else if (argc == 2)
{
int value = atoi(argv[1]);
switch (value)
{
case 1:
isListOfObservers = true;
isSecure = false;
break;
case 2:
isListOfObservers = false;
isSecure = true;
break;
case 3:
isListOfObservers = true;
isSecure = true;
break;
case 4:
isSlowResponse = true;
break;
default:
break;
}
}
else
{
return -1;
}
// Create PlatformConfig object
PlatformConfig cfg {
OC::ServiceType::InProc,
OC::ModeType::Server,
"0.0.0.0", // By setting to "0.0.0.0", it binds to all available interfaces
0, // Uses randomly available port
OC::QualityOfService::LowQos,
&ps
};
OCPlatform::Configure(cfg);
try
{
// Create the instance of the resource class
// (in this case instance of class 'LightResource').
LightResource myLight;
// Invoke createResource function of class light.
myLight.createResource();
std::cout << "Created resource." << std::endl;
myLight.addType(std::string("core.brightlight"));
myLight.addInterface(std::string(LINK_INTERFACE));
std::cout << "Added Interface and Type" << std::endl;
// A condition variable will free the mutex it is given, then do a non-
// intensive block until 'notify' is called on it. In this case, since we
// don't ever call cv.notify, this should be a non-processor intensive version
// of while(true);
std::mutex blocker;
std::condition_variable cv;
std::unique_lock<std::mutex> lock(blocker);
std::cout <<"Waiting" << std::endl;
cv.wait(lock, []{return false;});
}
catch(OCException &e)
{
std::cout << "OCException in main : " << e.what() << endl;
}
// No explicit call to stop the platform.
// When OCPlatform::destructor is invoked, internally we do platform cleanup
return 0;
}