/**
* @brief 向代理（服务器）发送一个消息
* @param pTopic 消息主题
* @param pMessage 消息内容
* @retval 小于0表示发送失败
*/
int mqtt_publish(char *pTopic,char *pMessage)
{
int32_t len,rc;
MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
unsigned char buf[200];
MQTTString topicString = MQTTString_initializer;
int msglen = strlen(pMessage);
int buflen = sizeof(buf);
data.clientID.cstring = "me";
data.keepAliveInterval = 5;
data.cleansession = 1;
len = MQTTSerialize_connect(buf, buflen, &data); /* 1 */
topicString.cstring = pTopic;
len += MQTTSerialize_publish(buf + len, buflen - len, 0, 0, 0, 0, topicString, (unsigned char*)pMessage, msglen); /* 2 */
len += MQTTSerialize_disconnect(buf + len, buflen - len); /* 3 */
transport_open();
rc = transport_sendPacketBuffer(buf,len);
transport_close();
if (rc == len)
printf("Successfully published\n\r");
else
printf("Publish failed\n\r");
return 0;
}
int send_pub(char *host, int port, char * buf, int buflen, int qos, int retained, short packetid, char *payload, int payloadlen)
{
MQTTSN_topicid topic;
int rc = 0;
int len = 0;
int dup = 0;
/* publish with short name */
topic.type = MQTTSN_TOPIC_TYPE_SHORT;
memcpy(topic.data.short_name, SHORT_TOPIC, 2);
len = MQTTSNSerialize_publish(buf, buflen, dup, qos, retained, packetid,
topic, payload, payloadlen);
rc = transport_sendPacketBuffer(host, port, buf, len);
TLOG("rc %d from send packet %s for publish topictype %d topicid %d length %d\n", rc, payload, topic.type, topic.data.id, len);
return rc;
}
int main(int argc, char** argv)
{
int rc = 0;
int mysock;
unsigned char buf[200];
int buflen = sizeof(buf);
MQTTSN_topicid topic;
unsigned char* payload = (unsigned char*)"mypayload";
int payloadlen = strlen((char*)payload);
int len = 0;
int dup = 0;
int qos = 3;
int retained = 0;
short packetid = 0;
char *topicname = "a long topic name";
char *host = "127.0.0.1";
int port = 1883;
mysock = transport_open();
if(mysock < 0)
return mysock;
if (argc > 1)
host = argv[1];
if (argc > 2)
port = atoi(argv[2]);
printf("Sending to hostname %s port %d\n", host, port);
topic.type = MQTTSN_TOPIC_TYPE_NORMAL;
topic.data.long_.name = topicname;
topic.data.long_.len = strlen(topicname);
len = MQTTSNSerialize_publish(buf, buflen, dup, qos, retained, packetid,
topic, payload, payloadlen);
rc = transport_sendPacketBuffer(host, port, buf, len);
transport_close();
return 0;
}
int main(int argc, char** argv)
{
int rc = 0;
int mysock;
unsigned char buf[200];
int buflen = sizeof(buf);
unsigned char payload[16];
int payloadlen = 0;
int len = 0;
int qos = 0;
int retained = 0;
short packetid = 0;
char ascii = 0;
// char *topicname = "a long topic name";
char *host = "127.0.0.1";
int port = 1884;
int i = 0;
MQTTSNString msstr = {0};
MQTTSNPacket_connectData options = MQTTSNPacket_connectData_initializer;
mysock = transport_open();
if(mysock < 0)
return mysock;
if (argc > 1)
host = argv[1];
if (argc > 2)
port = atoi(argv[2]);
TLOG("Sending to hostname %s port %d\n", host, port);
options.clientID.cstring = "testclientid_case1";
len = MQTTSNSerialize_connect(buf, buflen, &options);
rc = transport_sendPacketBuffer(host, port, buf, len);
/* wait for connack */
if (MQTTSNPacket_read(buf, buflen, transport_getdata) == MQTTSN_CONNACK)
{
int connack_rc = -1;
if (MQTTSNDeserialize_connack(&connack_rc, buf, buflen) != 1 || connack_rc != 0)
{
TLOG("Unable to connect, return code %d\n", connack_rc);
goto exit;
}
else
TLOG("connected rc %d\n", connack_rc);
}
else
goto exit;
len = MQTTSNSerialize_disconnect(buf, buflen, 5);
rc = transport_sendPacketBuffer(host, port, buf, len);
/* wait for DISCONNECT */
if ((rc = MQTTSNPacket_read(buf, buflen, transport_getdata)) == MQTTSN_DISCONNECT)
{
int duration = 0;
if (MQTTSNDeserialize_disconnect(&duration, buf, buflen) != 1)
{
TLOG("Unable to diconnect, return code %d\n", duration);
goto exit;
}
else
TLOG("duration %d\n", duration);
}
else
{
TLOG("rc %d\n", rc);
goto exit;
}
sleep(2);
msstr.cstring = "testclientid_case1";
len = MQTTSNSerialize_pingreq(buf, buflen, msstr);
rc = transport_sendPacketBuffer(host, port, buf, len);
/* wait for PINGRSP */
if (MQTTSNPacket_read(buf, buflen, transport_getdata) == MQTTSN_PINGRESP)
{
if (MQTTSNDeserialize_pingresp(buf, buflen) != 1)
{
TLOG("Unable to ping\n");
goto exit;
}
else
TLOG("get pingresp\n");
}
else
goto exit;
mark_result(argv[0], RESULT_PASS);
transport_close();
return 0;
exit:
mark_result(argv[0], RESULT_FAIL);
transport_close();
return 0;
}
/**
* @brief 向服务器订阅一个消息，该函数会因为TCP接收数据函数而阻塞
* @param pTopic 消息主题，传入
* @param pMessage 消息内容，传出
* @retval 小于0表示订阅消息失败
*/
int mqtt_subscrib(char *pTopic,char *pMessage)
{
MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
int rc = 0;
unsigned char buf[200];
int buflen = sizeof(buf);
int msgid = 1;
MQTTString topicString = MQTTString_initializer;
int req_qos = 0;
int len = 0;
rc = transport_open();
if(rc < 0){
printf("transport_open error\n\r");
return rc;
}
data.clientID.cstring = "";
data.keepAliveInterval = 5;//服务器保持连接时间，超过该时间后，服务器会主动断开连接，单位为秒
data.cleansession = 1;
data.username.cstring = "";
data.password.cstring = "";
len = MQTTSerialize_connect(buf, buflen, &data);
rc = transport_sendPacketBuffer(buf, len);
if(rc != len){
printf("connect transport_sendPacketBuffer error\n\r");
goto exit;
}
/* wait for connack */
if (MQTTPacket_read(buf, buflen, transport_getdata) == CONNACK)
{
unsigned char sessionPresent, connack_rc;
if (MQTTDeserialize_connack(&sessionPresent, &connack_rc, buf, buflen) != 1 || connack_rc != 0)
{
printf("Unable to connect, return code %d\n\r", connack_rc);
goto exit;
}
}else{
printf("MQTTPacket_read error\n\r");
goto exit;
}
/* subscribe */
topicString.cstring = pTopic;
len = MQTTSerialize_subscribe(buf, buflen, 0, msgid, 1, &topicString, &req_qos);
rc = transport_sendPacketBuffer(buf, len);
if(rc != len){
printf("connect transport_sendPacketBuffer error\n\r");
goto exit;
}
if (MQTTPacket_read(buf, buflen, transport_getdata) == SUBACK) /* wait for suback */
{
unsigned short submsgid;
int subcount;
int granted_qos;
rc = MQTTDeserialize_suback(&submsgid, 1, &subcount, &granted_qos, buf, buflen);
if (granted_qos != 0)
{
printf("granted qos != 0, %d\n\r", granted_qos);
goto exit;
}
}
else
goto exit;
/* loop getting msgs on subscribed topic */
topicString.cstring = pTopic;
memset(buf,0,buflen);
//transport_getdata接收数据会阻塞，除非服务器断开连接后才返回
if (MQTTPacket_read(buf, buflen, transport_getdata) == PUBLISH){
unsigned char dup;
int qos;
unsigned char retained;
unsigned short msgid;
int payloadlen_in;
unsigned char* payload_in;
MQTTString receivedTopic;
rc = MQTTDeserialize_publish(&dup, &qos, &retained, &msgid, &receivedTopic,
&payload_in, &payloadlen_in, buf, buflen);
printf("message arrived %d: %s\n\r", payloadlen_in, payload_in);
strcpy(pMessage,(const char *)payload_in);
}
printf("disconnecting\n\r");
len = MQTTSerialize_disconnect(buf, buflen);
rc = transport_sendPacketBuffer(buf, len);
exit:
transport_close();
return rc;
}
int main(int argc, char *argv[])
{
MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
int rc = 0;
int mysock = 0;
unsigned char buf[200];
int buflen = sizeof(buf);
int msgid = 1;
MQTTString topicString = MQTTString_initializer;
int req_qos = 0;
char* payload = "mypayload";
int payloadlen = strlen(payload);
int len = 0;
char *host = "m2m.eclipse.org";
int port = 1883;
MQTTTransport mytransport;
stop_init();
if (argc > 1)
host = argv[1];
if (argc > 2)
port = atoi(argv[2]);
mysock = transport_open(host, port);
if(mysock < 0)
return mysock;
printf("Sending to hostname %s port %d\n", host, port);
mytransport.sck = &mysock;
mytransport.getfn = transport_getdatanb;
mytransport.state = 0;
data.clientID.cstring = "me";
data.keepAliveInterval = 20;
data.cleansession = 1;
data.username.cstring = "testuser";
data.password.cstring = "testpassword";
len = MQTTSerialize_connect(buf, buflen, &data);
rc = transport_sendPacketBuffer(mysock, buf, len);
/* wait for connack */
if (MQTTPacket_read(buf, buflen, transport_getdata) == CONNACK)
{
unsigned char sessionPresent, connack_rc;
if (MQTTDeserialize_connack(&sessionPresent, &connack_rc, buf, buflen) != 1 || connack_rc != 0)
{
printf("Unable to connect, return code %d\n", connack_rc);
goto exit;
}
}
else
goto exit;
/* subscribe */
topicString.cstring = "substopic";
len = MQTTSerialize_subscribe(buf, buflen, 0, msgid, 1, &topicString, &req_qos);
rc = transport_sendPacketBuffer(mysock, buf, len);
do {
int frc;
if ((frc=MQTTPacket_readnb(buf, buflen, &mytransport)) == SUBACK) /* wait for suback */
{
unsigned short submsgid;
int subcount;
int granted_qos;
rc = MQTTDeserialize_suback(&submsgid, 1, &subcount, &granted_qos, buf, buflen);
if (granted_qos != 0)
{
printf("granted qos != 0, %d\n", granted_qos);
goto exit;
}
break;
}
else if (frc == -1)
goto exit;
} while (1); /* handle timeouts here */
/* loop getting msgs on subscribed topic */
topicString.cstring = "pubtopic";
while (!toStop)
{
/* handle timeouts */
if (MQTTPacket_readnb(buf, buflen, &mytransport) == PUBLISH)
{
unsigned char dup;
int qos;
unsigned char retained;
unsigned short msgid;
int payloadlen_in;
unsigned char* payload_in;
int rc;
MQTTString receivedTopic;
rc = MQTTDeserialize_publish(&dup, &qos, &retained, &msgid, &receivedTopic,
&payload_in, &payloadlen_in, buf, buflen);
printf("message arrived %.*s\n", payloadlen_in, payload_in);
printf("publishing reading\n");
len = MQTTSerialize_publish(buf, buflen, 0, 0, 0, 0, topicString, (unsigned char*)payload, payloadlen);
rc = transport_sendPacketBuffer(mysock, buf, len);
}
}
printf("disconnecting\n");
len = MQTTSerialize_disconnect(buf, buflen);
rc = transport_sendPacketBuffer(mysock, buf, len);
exit:
transport_close(mysock);
return 0;
}
int main(int argc, char** argv)
{
int rc = 0;
int mysock;
unsigned char buf[200];
int buflen = sizeof(buf);
MQTTSN_topicid topic;
unsigned char* payload = (unsigned char*)"mypayload";
int payloadlen = strlen((char*)payload);
int len = 0;
unsigned char dup = 0;
int qos = 1;
unsigned char retained = 0;
short packetid = 1;
char *topicname = "a long topic name";
char *host = "127.0.0.1";
int port = 1883;
MQTTSNPacket_connectData options = MQTTSNPacket_connectData_initializer;
unsigned short topicid;
mysock = transport_open();
if(mysock < 0)
return mysock;
if (argc > 1)
host = argv[1];
if (argc > 2)
port = atoi(argv[2]);
printf("Sending to hostname %s port %d\n", host, port);
options.clientID.cstring = "pub0sub1 MQTT-SN";
len = MQTTSNSerialize_connect(buf, buflen, &options);
rc = transport_sendPacketBuffer(host, port, buf, len);
/* wait for connack */
if (MQTTSNPacket_read(buf, buflen, transport_getdata) == MQTTSN_CONNACK)
{
int connack_rc = -1;
if (MQTTSNDeserialize_connack(&connack_rc, buf, buflen) != 1 || connack_rc != 0)
{
printf("Unable to connect, return code %d\n", connack_rc);
goto exit;
}
else
printf("connected rc %d\n", connack_rc);
}
else
goto exit;
/* subscribe */
printf("Subscribing\n");
topic.type = MQTTSN_TOPIC_TYPE_NORMAL;
topic.data.long_.name = topicname;
topic.data.long_.len = strlen(topic.data.long_.name);
len = MQTTSNSerialize_subscribe(buf, buflen, 0, 2, packetid, &topic);
rc = transport_sendPacketBuffer(host, port, buf, len);
if (MQTTSNPacket_read(buf, buflen, transport_getdata) == MQTTSN_SUBACK) /* wait for suback */
{
unsigned short submsgid;
int granted_qos;
unsigned char returncode;
rc = MQTTSNDeserialize_suback(&granted_qos, &topicid, &submsgid, &returncode, buf, buflen);
if (granted_qos != 2 || returncode != 0)
{
printf("granted qos != 2, %d return code %d\n", granted_qos, returncode);
goto exit;
}
else
printf("suback topic id %d\n", topicid);
}
else
goto exit;
printf("Publishing\n");
/* publish with short name */
topic.type = MQTTSN_TOPIC_TYPE_NORMAL;
topic.data.id = topicid;
++packetid;
len = MQTTSNSerialize_publish(buf, buflen, dup, qos, retained, packetid,
topic, payload, payloadlen);
rc = transport_sendPacketBuffer(host, port, buf, len);
/* wait for puback */
if (MQTTSNPacket_read(buf, buflen, transport_getdata) == MQTTSN_PUBACK)
{
unsigned short packet_id, topic_id;
unsigned char returncode;
if (MQTTSNDeserialize_puback(&topic_id, &packet_id, &returncode, buf, buflen) != 1 || returncode != MQTTSN_RC_ACCEPTED)
printf("Unable to publish, return code %d\n", returncode);
else
printf("puback received, msgid %d topic id %d\n", packet_id, topic_id);
}
else
goto exit;
printf("Receive publish\n");
if (MQTTSNPacket_read(buf, buflen, transport_getdata) == MQTTSN_PUBLISH)
{
unsigned short packet_id;
int qos, payloadlen;
unsigned char* payload;
unsigned char dup, retained;
MQTTSN_topicid pubtopic;
if (MQTTSNDeserialize_publish(&dup, &qos, &retained, &packet_id, &pubtopic,
&payload, &payloadlen, buf, buflen) != 1)
printf("Error deserializing publish\n");
else
printf("publish received, id %d qos %d\n", packet_id, qos);
if (qos == 1)
{
len = MQTTSNSerialize_puback(buf, buflen, pubtopic.data.id, packet_id, MQTTSN_RC_ACCEPTED);
rc = transport_sendPacketBuffer(host, port, buf, len);
if (rc == 0)
printf("puback sent\n");
}
}
else
goto exit;
len = MQTTSNSerialize_disconnect(buf, buflen, 0);
rc = transport_sendPacketBuffer(host, port, buf, len);
exit:
transport_close();
return 0;
}
int main(int argc, char** argv)
{
int rc = 0;
int mysock;
unsigned char buf[200];
int buflen = sizeof(buf);
unsigned char payload[16];
int payloadlen = 0;
int len = 0;
int qos = 3;
int retained = 0;
short packetid = 0;
char ascii = 0;
// char *topicname = "a long topic name";
char *host = "127.0.0.1";
int port = 1884;
int i = 0;
MQTTSNPacket_connectData options = MQTTSNPacket_connectData_initializer;
mysock = transport_open();
if(mysock < 0)
return mysock;
if (argc > 1)
host = argv[1];
if (argc > 2)
port = atoi(argv[2]);
TLOG("Sending to hostname %s port %d\n", host, port);
options.clientID.cstring = "pubpredef0 MQTT-SN";
len = MQTTSNSerialize_connect(buf, buflen, &options);
rc = transport_sendPacketBuffer(host, port, buf, len);
/* wait for connack */
if (MQTTSNPacket_read(buf, buflen, transport_getdata) == MQTTSN_CONNACK)
{
int connack_rc = -1;
if (MQTTSNDeserialize_connack(&connack_rc, buf, buflen) != 1 || connack_rc != 0)
{
TLOG("Unable to connect, return code %d\n", connack_rc);
goto exit;
}
else
TLOG("connected rc %d\n", connack_rc);
}
else
goto exit;
for(i=0;i<2;i++)
{
ascii = 'a'+(i%26);
payload[0] = payload[1] = payload[2] = ascii;
payload[3] = 0;
payloadlen = 4;
send_pub(host, port, buf, buflen, qos, retained, packetid, payload, payloadlen);
TLOG("%d send publish %s", i, payload);
sleep(1);
}
exit:
transport_close();
return 0;
}
int main(int argc, char** argv)
{
int rc = 0;
int mysock;
unsigned char buf[200];
int buflen = sizeof(buf);
MQTTSN_topicid topic;
unsigned char* payload = (unsigned char*)"mypayload";
int payloadlen = strlen((char*)payload);
int len = 0;
int dup = 0;
int qos = 1;
int retained = 0;
short packetid = 1;
char *host = "127.0.0.1";
int port = 1883;
MQTTSNPacket_connectData options = MQTTSNPacket_connectData_initializer;
mysock = transport_open();
if(mysock < 0)
return mysock;
if (argc > 1)
host = argv[1];
if (argc > 2)
port = atoi(argv[2]);
printf("Sending to hostname %s port %d\n", host, port);
options.clientID.cstring = "myclientid";
len = MQTTSNSerialize_connect(buf, buflen, &options);
rc = transport_sendPacketBuffer(host, port, buf, len);
/* wait for connack */
if (MQTTSNPacket_read(buf, buflen, transport_getdata) == MQTTSN_CONNACK)
{
int connack_rc = -1;
if (MQTTSNDeserialize_connack(&connack_rc, buf, buflen) != 1 || connack_rc != 0)
{
printf("Unable to connect, return code %d\n", connack_rc);
goto exit;
}
else
printf("connected rc %d\n", connack_rc);
}
else
goto exit;
/* publish with short name */
topic.type = MQTTSN_TOPIC_TYPE_SHORT;
memcpy(topic.data.short_name, "tt", 2);
len = MQTTSNSerialize_publish(buf, buflen - len, dup, qos, retained, packetid,
topic, payload, payloadlen);
rc = transport_sendPacketBuffer(host, port, buf, len);
/* wait for puback */
if (MQTTSNPacket_read(buf, buflen, transport_getdata) == MQTTSN_PUBACK)
{
unsigned short packet_id, topic_id;
unsigned char returncode;
if (MQTTSNDeserialize_puback(&topic_id, &packet_id, &returncode, buf, buflen) != 1 || returncode != MQTTSN_RC_ACCEPTED)
printf("Unable to publish, return code %d\n", returncode);
else
printf("puback received, id %d\n", packet_id);
}
else
goto exit;
len = MQTTSNSerialize_disconnect(buf, buflen, 0);
rc = transport_sendPacketBuffer(host, port, buf, len);
exit:
transport_close();
return 0;
}
int main(int argc, char *argv[])
{
/******MQTT*******/
MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
int rc = 0;
char buf[200];
int buflen = sizeof(buf);
int mysock = 0;
MQTTString topicString = MQTTString_initializer;
char* payload = "mypayload";
int payloadlen = strlen(payload);
int len = 0;
char *host = "192.168.8.241";
int port = 1883;
/******UART*******/
int fd = FALSE;
int ret;
char rcv_buf[512];
int i;
if(argc < 2){
printf("Usage: %s /dev/ttySn \n",argv[0]);
return FALSE;
}
if (argc > 2)
host = argv[2];
if (argc > 3)
port = atoi(argv[3]);
fd = UART_Open(fd,argv[1]);
if(FALSE == fd){
printf("open error\n");
exit(1);
}
ret = UART_Init(fd,9600,0,8,1,'N');
if (FALSE == fd){
printf("Set Port Error\n");
exit(1);
}
ret = UART_Send(fd,"*IDN?\n",6);
if(FALSE == ret){
printf("write error!\n");
exit(1);
}
printf("command: %s\n","*IDN?");
memset(rcv_buf,0,sizeof(rcv_buf));
/**************MQTT tansport*************/
mysock = transport_open(host,port);
if(mysock < 0)
return mysock;
printf("Sending to hostname %s port %d\n", host, port);
data.clientID.cstring = "me";
data.keepAliveInterval = 20;
data.cleansession = 1;
data.username.cstring = "testuser";
data.password.cstring = "testpassword";
data.MQTTVersion = 4;
for(i=0;;i++)
{
ret = UART_Recv(fd, rcv_buf,512);
if(ret > 0)
{
rcv_buf[ret]='\0';
printf("%s",rcv_buf);
len = MQTTSerialize_connect((unsigned char *)buf, buflen, &data);
topicString.cstring = "mytopic";
len += MQTTSerialize_publish((unsigned char *)(buf + len), buflen - len, 0, 0, 0, 0, topicString, (unsigned char *)rcv_buf, ret+1);
len += MQTTSerialize_disconnect((unsigned char *)(buf + len), buflen - len);
rc = transport_sendPacketBuffer(mysock, buf, len);
if (rc == len)
printf("Successfully published\n");
else
printf("Publish failed\n");
}
else
{
printf("cannot receive data1\n");
break;
}
}
exit:
UART_Close(fd);
transport_close(mysock);
return 0;
}