int main(int argc, char* argv[])
{
int packet_length;
uint16_t msg_id, msg_id_rcv;
mqtt_broker_handle_t broker;
mqtt_init(&broker, "sancho");
mqtt_init_auth(&broker, "quijote", "rocinante");
init_socket(&broker, "192.168.10.40", 1883, keepalive);
// >>>>> CONNECT
mqtt_connect(&broker);
// <<<<< CONNACK
packet_length = read_packet(1);
if(packet_length < 0)
{
fprintf(stderr, "Error(%d) on read packet!\n", packet_length);
return -1;
}
if(MQTTParseMessageType(packet_buffer) != MQTT_MSG_CONNACK)
{
fprintf(stderr, "CONNACK expected!\n");
return -2;
}
if(packet_buffer[3] != 0x00)
{
fprintf(stderr, "CONNACK failed!\n");
return -2;
}
// >>>>> PUBLISH QoS 0
printf("Publish: QoS 0\n");
mqtt_publish(&broker, "public/myexample/example", "Test libemqtt message.", 0);
// >>>>> PUBLISH QoS 1
printf("Publish: QoS 1\n");
mqtt_publish_with_qos(&broker, "hello/emqtt", "Example: QoS 1", 0, 1, &msg_id);
// <<<<< PUBACK
packet_length = read_packet(1);
if(packet_length < 0)
{
fprintf(stderr, "Error(%d) on read packet!\n", packet_length);
return -1;
}
if(MQTTParseMessageType(packet_buffer) != MQTT_MSG_PUBACK)
{
fprintf(stderr, "PUBACK expected!\n");
return -2;
}
MQTTParseMessageId(packet_buffer, msg_id_rcv);
if(msg_id != msg_id_rcv)
{
fprintf(stderr, "%d message id was expected, but %d message id was found!\n", msg_id, msg_id_rcv);
return -3;
}
// >>>>> PUBLISH QoS 2
printf("Publish: QoS 2\n");
mqtt_publish_with_qos(&broker, "hello/emqtt", "Example: QoS 2", 1, 2, &msg_id); // Retain
// <<<<< PUBREC
packet_length = read_packet(1);
if(packet_length < 0)
{
fprintf(stderr, "Error(%d) on read packet!\n", packet_length);
return -1;
}
if(MQTTParseMessageType(packet_buffer) != MQTT_MSG_PUBREC)
{
fprintf(stderr, "PUBREC expected!\n");
return -2;
}
MQTTParseMessageId(packet_buffer, msg_id_rcv);
if(msg_id != msg_id_rcv)
{
fprintf(stderr, "%d message id was expected, but %d message id was found!\n", msg_id, msg_id_rcv);
return -3;
}
// >>>>> PUBREL
mqtt_pubrel(&broker, msg_id);
// <<<<< PUBCOMP
packet_length = read_packet(1);
if(packet_length < 0)
{
fprintf(stderr, "Error(%d) on read packet!\n", packet_length);
return -1;
}
if(MQTTParseMessageType(packet_buffer) != MQTT_MSG_PUBCOMP)
{
fprintf(stderr, "PUBCOMP expected!\n");
return -2;
}
MQTTParseMessageId(packet_buffer, msg_id_rcv);
if(msg_id != msg_id_rcv)
{
fprintf(stderr, "%d message id was expected, but %d message id was found!\n", msg_id, msg_id_rcv);
return -3;
}
// >>>>> DISCONNECT
mqtt_disconnect(&broker);
close_socket(&broker);
return 0;
}
void app_parse_mqttmsg(uint8_t *packet_buffer)
{
uint8_t msg_type = 0;
uint16_t msg_id_rcv = 0;
char topic_name[56]={0};
char msg[128]={0};
msg_type = MQTTParseMessageType(packet_buffer);
//printf("-----> parse:0x%02X\n", msg_type);
switch(msg_type)
{
case MQTT_MSG_CONNACK:
if(packet_buffer[3] == 0)
{
printf("Mqtt login server success\n");
/* subscribe */
init_topic(&g_sub_topic, sub_topic_name, sizeof(sub_topic_name));
mqtt_subscribe(&g_stMQTTBroker, g_sub_topic->name, &(g_sub_topic->msg_id));
/* publish msg with Qos 0 */
//step1:>>>publish
init_topic(&g_pub_topic1, pub_topic_name1, sizeof(pub_topic_name1));
mqtt_publish(&g_stMQTTBroker, g_pub_topic1->name, pub_msg1, 0);
printf("APP publish msg[%s] with Qos 0\n", pub_msg1);
deinit_topic(&g_pub_topic1);
/* publish msg with Qos 1 */
//step1:>>>publish
//step2:<<<puback
init_topic(&g_pub_topic2, pub_topic_name2, sizeof(pub_topic_name2));
mqtt_publish_with_qos(&g_stMQTTBroker, g_pub_topic2->name, pub_msg2, 0, 1, &(g_pub_topic2->msg_id));
}
else
printf("Mqtt login server fail!\n");
break;
case MQTT_MSG_SUBACK:
msg_id_rcv = mqtt_parse_msg_id(packet_buffer);
if(g_sub_topic && msg_id_rcv == g_sub_topic->msg_id)
printf("Subcribe topic[%s] success\n", g_sub_topic->name);
break;
case MQTT_MSG_PUBLISH:
mqtt_parse_pub_topic(packet_buffer, topic_name);
mqtt_parse_publish_msg(packet_buffer, msg);
printf("****** Topic[%s] recv msg: *****\n%s\n",topic_name, msg);
/* unsubscribe */
if(!strcmp(g_sub_topic->name, topic_name))
mqtt_unsubscribe(&g_stMQTTBroker, g_sub_topic->name, &(g_sub_topic->msg_id));
break;
case MQTT_MSG_UNSUBACK:
msg_id_rcv = mqtt_parse_msg_id(packet_buffer);
if(g_sub_topic && msg_id_rcv == g_sub_topic->msg_id)
{
printf("Unsubcribe topic[%s] success\n", g_sub_topic->name);
deinit_topic(&g_sub_topic);
}
break;
case MQTT_MSG_PUBACK://Qos1
msg_id_rcv = mqtt_parse_msg_id(packet_buffer);
if(g_pub_topic2 && msg_id_rcv == g_pub_topic2->msg_id)
{
printf("APP publish msg[%s] with Qos 1\n", pub_msg2);
deinit_topic(&g_pub_topic2);
/* publish msg with Qos 2 */
//step1:>>>publish
//step2:<<<pubrec
//step3:>>>pubrel
//step4:<<<pubcomp
init_topic(&g_pub_topic3, pub_topic_name3, sizeof(pub_topic_name3));
mqtt_publish_with_qos(&g_stMQTTBroker, g_pub_topic3->name, pub_msg3, 1, 2, &(g_pub_topic3->msg_id));
}
break;
case MQTT_MSG_PUBREC://Qos2
msg_id_rcv = mqtt_parse_msg_id(packet_buffer);
if(g_pub_topic3 && msg_id_rcv == g_pub_topic3->msg_id)
mqtt_pubrel(&g_stMQTTBroker, g_pub_topic3->msg_id);
break;
case MQTT_MSG_PUBCOMP://Qos2
msg_id_rcv = mqtt_parse_msg_id(packet_buffer);
if(g_pub_topic3 && msg_id_rcv == g_pub_topic3->msg_id)
{
printf("APP publish msg[%s] with Qos 2\n", pub_msg3);
deinit_topic(&g_pub_topic3);
}
break;
default:
printf("Unknow mqtt msg type\n");
break;
}
}
int main(int argc, char* argv[])
{
int packet_length;
uint16_t msg_id, msg_id_rcv;
mqtt_broker_handle_t broker;
mqtt_init(&broker, "avengalvon");
mqtt_init_auth(&broker, "cid", "campeador");
init_socket(&broker, "127.0.0.1", 1883);
// >>>>> CONNECT
mqtt_connect(&broker);
// <<<<< CONNACK
packet_length = read_packet(1);
if(packet_length < 0)
{
fprintf(stderr, "Error(%d) on read packet!\n", packet_length);
return -1;
}
if(MQTTParseMessageType(packet_buffer) != MQTT_MSG_CONNACK)
{
fprintf(stderr, "CONNACK expected!\n");
return -2;
}
if(packet_buffer[3] != 0x00)
{
fprintf(stderr, "CONNACK failed!\n");
return -2;
}
// >>>>> PUBLISH QoS 0
printf("Publish: QoS 0\n");
mqtt_publish(&broker, "hello/emqtt", "Example: QoS 0", 0);
// >>>>> PUBLISH QoS 1
printf("Publish: QoS 1\n");
mqtt_publish_with_qos(&broker, "hello/emqtt", "Example: QoS 1", 0, 1, &msg_id);
// <<<<< PUBACK
packet_length = read_packet(1);
if(packet_length < 0)
{
fprintf(stderr, "Error(%d) on read packet!\n", packet_length);
return -1;
}
if(MQTTParseMessageType(packet_buffer) != MQTT_MSG_PUBACK)
{
fprintf(stderr, "PUBACK expected!\n");
return -2;
}
msg_id_rcv = mqtt_parse_msg_id(packet_buffer);
if(msg_id != msg_id_rcv)
{
fprintf(stderr, "%d message id was expected, but %d message id was found!\n", msg_id, msg_id_rcv);
return -3;
}
// >>>>> PUBLISH QoS 2
printf("Publish: QoS 2\n");
mqtt_publish_with_qos(&broker, "hello/emqtt", "Example: QoS 2", 1, 2, &msg_id); // Retain
// <<<<< PUBREC
packet_length = read_packet(1);
if(packet_length < 0)
{
fprintf(stderr, "Error(%d) on read packet!\n", packet_length);
return -1;
}
if(MQTTParseMessageType(packet_buffer) != MQTT_MSG_PUBREC)
{
fprintf(stderr, "PUBREC expected!\n");
return -2;
}
msg_id_rcv = mqtt_parse_msg_id(packet_buffer);
if(msg_id != msg_id_rcv)
{
fprintf(stderr, "%d message id was expected, but %d message id was found!\n", msg_id, msg_id_rcv);
return -3;
}
// >>>>> PUBREL
mqtt_pubrel(&broker, msg_id);
// <<<<< PUBCOMP
packet_length = read_packet(1);
if(packet_length < 0)
{
fprintf(stderr, "Error(%d) on read packet!\n", packet_length);
return -1;
}
if(MQTTParseMessageType(packet_buffer) != MQTT_MSG_PUBCOMP)
{
fprintf(stderr, "PUBCOMP expected!\n");
return -2;
}
msg_id_rcv = mqtt_parse_msg_id(packet_buffer);
if(msg_id != msg_id_rcv)
{
fprintf(stderr, "%d message id was expected, but %d message id was found!\n", msg_id, msg_id_rcv);
return -3;
}
// >>>>> DISCONNECT
mqtt_disconnect(&broker);
close_socket(&broker);
return 0;
}
