int test1_messageArrived(void* context, char* topicName, int topicLen, MQTTAsync_message* message)
{
MQTTAsync c = (MQTTAsync)context;
static int message_count = 0;
int rc;
MyLog(LOGA_DEBUG, "In messageArrived callback %p", c);
if (++message_count == 1)
{
MQTTAsync_message pubmsg = MQTTAsync_message_initializer;
MQTTAsync_responseOptions opts = MQTTAsync_responseOptions_initializer;
pubmsg.payload = "a much longer message that we can shorten to the extent that we need to payload up to 11";
pubmsg.payloadlen = 11;
pubmsg.qos = 2;
pubmsg.retained = 0;
rc = MQTTAsync_sendMessage(c, test_topic, &pubmsg, &opts);
}
else
{
MQTTAsync_responseOptions opts = MQTTAsync_responseOptions_initializer;
opts.onSuccess = test1_onUnsubscribe;
opts.context = c;
rc = MQTTAsync_unsubscribe(c, test_topic, &opts);
assert("Unsubscribe successful", rc == MQTTASYNC_SUCCESS, "rc was %d", rc);
}
MQTTAsync_freeMessage(&message);
MQTTAsync_free(topicName);
return 1;
}
int test3_messageArrived(void* context, char* topicName, int topicLen, MQTTAsync_message* message)
{
client_data* cd = (client_data*)context;
int rc;
MyLog(LOGA_DEBUG, "In messageArrived callback \"%s\" message count ", cd->clientid);
if (++cd->message_count == 1)
{
MQTTAsync_message pubmsg = MQTTAsync_message_initializer;
MQTTAsync_responseOptions opts = MQTTAsync_responseOptions_initializer;
pubmsg.payload = "a much longer message that we can shorten to the extent that we need to payload up to 11";
pubmsg.payloadlen = 25;
pubmsg.qos = 1;
pubmsg.retained = 0;
rc = MQTTAsync_sendMessage(cd->c, cd->test_topic, &pubmsg, &opts);
assert("Good rc from publish", rc == MQTTASYNC_SUCCESS, "rc was %d", rc);
}
else if (cd->message_count == 2)
{
MQTTAsync_message pubmsg = MQTTAsync_message_initializer;
MQTTAsync_responseOptions opts = MQTTAsync_responseOptions_initializer;
pubmsg.payload = "a QoS 0 message that we can shorten to the extent that we need to payload up to 11";
pubmsg.payloadlen = 29;
pubmsg.qos = 0;
pubmsg.retained = 0;
opts.context = cd;
opts.onSuccess = test3_onPublish;
rc = MQTTAsync_sendMessage(cd->c, cd->test_topic, &pubmsg, &opts);
assert("Good rc from publish", rc == MQTTASYNC_SUCCESS, "rc was %d", rc);
}
else
{
MQTTAsync_responseOptions opts = MQTTAsync_responseOptions_initializer;
opts.onSuccess = test3_onUnsubscribe;
opts.context = cd;
rc = MQTTAsync_unsubscribe(cd->c, cd->test_topic, &opts);
assert("Unsubscribe successful", rc == MQTTASYNC_SUCCESS, "rc was %d", rc);
}
MQTTAsync_freeMessage(&message);
MQTTAsync_free(topicName);
return 1;
}
/**
* @name Unsubscribe a topic
* @brief Discontinues the subscription to a topic.
* @param[in] topic has been previously subscribed to
*/
int unsubscribe(char *topic) {
#if DEBUG
printf("Invoked MQTT: unsubscribe()\n");
#endif
MQTTAsync_responseOptions opts = MQTTAsync_responseOptions_initializer;
opts.onSuccess = onUnSubscribe;
opts.onFailure = onUnSubscribeFailure;
opts.context = client;
int rc = 0;
if ((rc = MQTTAsync_unsubscribe(client, topic, &opts)) != MQTTASYNC_SUCCESS) {
printf("Failed to unsubscribe, return code %d\n", rc);
exit(-1);
}
return rc;
}
int test4_messageArrived(void* context, char* topicName, int topicLen, MQTTAsync_message* message)
{
MQTTAsync c = (MQTTAsync)context;
static int message_count = 0;
int rc, i;
MyLog(LOGA_DEBUG, "In messageArrived callback %p", c);
assert("Message size correct", message->payloadlen == test4_payloadlen,
"message size was %d", message->payloadlen);
for (i = 0; i < options.size; ++i)
{
if (((char*)test4_payload)[i] != ((char*)message->payload)[i])
{
assert("Message contents correct", ((char*)test4_payload)[i] != ((char*)message->payload)[i],
"message content was %c", ((char*)message->payload)[i]);
break;
}
}
if (++message_count == 1)
{
MQTTAsync_message pubmsg = MQTTAsync_message_initializer;
MQTTAsync_responseOptions opts = MQTTAsync_responseOptions_initializer;
pubmsg.payload = test4_payload;
pubmsg.payloadlen = test4_payloadlen;
pubmsg.qos = 1;
pubmsg.retained = 0;
opts.onSuccess = test4_onPublish;
opts.context = c;
rc = MQTTAsync_sendMessage(c, test_topic, &pubmsg, &opts);
}
else if (message_count == 2)
{
MQTTAsync_message pubmsg = MQTTAsync_message_initializer;
MQTTAsync_responseOptions opts = MQTTAsync_responseOptions_initializer;
pubmsg.payload = test4_payload;
pubmsg.payloadlen = test4_payloadlen;
pubmsg.qos = 0;
pubmsg.retained = 0;
opts.onSuccess = test4_onPublish;
opts.context = c;
rc = MQTTAsync_sendMessage(c, test_topic, &pubmsg, &opts);
}
else
{
MQTTAsync_responseOptions opts = MQTTAsync_responseOptions_initializer;
opts.onSuccess = test1_onUnsubscribe;
opts.context = c;
rc = MQTTAsync_unsubscribe(c, test_topic, &opts);
assert("Unsubscribe successful", rc == MQTTASYNC_SUCCESS, "rc was %d", rc);
}
MQTTAsync_freeMessage(&message);
MQTTAsync_free(topicName);
return 1;
}
