/**
* @name Starts the application
* @brief Starts the application to publish data
*
* Establishes the connection with enableiot cloud
*/
int main(void) {
puts("Sample program to publish data to IoT Cloud !!");
srvSpec = (ServiceSpec *) parseServiceSpec("./serviceSpecs/temperatureServiceEnableIot.json");
if (srvSpec){
advertiseServiceBlocking(srvSpec, callback);
}
return 0;
}
int main(int argc, char *argv[]) {
ServiceSpec *specification = (ServiceSpec *)parseServiceSpec("../../examples/serviceSpecs/temperatureServiceMQTT.json");
CommHandle *commHandle = createClient(specification);
if (commHandle) {
Context context;
context.name = "topic";
context.value = "temperature";
commHandle->send("75 degrees", context);
commHandle->unsubscribe("temperature");
commHandle->subscribe("temperature");
}
}
int main(void) {
ServiceQuery *servQuery = (ServiceQuery *) parseServiceQuery("./temperatureServiceQueryMQTT.json");
ServiceSpec *serviceSpec = (ServiceSpec *) parseServiceSpec("./temperatureServiceMQTT.json");
/* Establish a handler for SIGALRM signals. */
signal(SIGALRM, subDiscoveryCallback);
/* Set an alarm to go off*/
alarm(5);
if (serviceSpec) {
if (servQuery) {
fprintf(stderr,"query host address %s\n",servQuery->address);
fprintf(stderr,"query host port %d\n",servQuery->port);
fprintf(stderr,"query service name %s\n",servQuery->service_name);
printf("Waiting for the Service Upto 5 Seconds\n");
discoverServicesBlocking(servQuery, subDiscoveryCallback);
}
}
return 0;
}
/** Callback function. Once the service is discovered this callback function will be invoked
* @param servQuery left for future purpose, currently unused
* @param error_code the error code
* @param commHandle the communication handle used to invoke the interfaces
*/
void subCallback(ServiceQuery *servQuery, int32_t error_code, CommHandle *commHandle) {
int (**receive)(void (*)(char *, Context));
ServiceSpec *serviceSpec = (ServiceSpec *) parseServiceSpec("./serviceSpecs/thermostat-spec.json");
if (serviceSpec) {
advertiseService(serviceSpec);
CommHandle *serviceHandle = createService(NULL, serviceSpec);
mypublisher = commInterfacesLookup(serviceHandle, "publish");
topic = serviceSpec->service_name;
}
if (commHandle != NULL) {
receive = commInterfacesLookup(commHandle, "receive");
if (receive != NULL) {
while (1) { // Infinite Event Loop
(*receive)(clientMessageCallback);
sleep(2);
}
} else {
fprintf(stderr, "Interface lookup failed\n");
}
} else {
fprintf(stderr, "Comm Handle is NULL\n");
}
}
