/*
* 1: mqtt instance have been init
* 0: mqtt instance init success
* IOT_MQTT_Construct success, MQTT connected.
* -1: mqtt instance init fail
*/
int mqtt_init_instance(char *productKey, char *deviceName, char *deviceSecret, int maxMsgSize)
{
if (mqtt_client)
return 1;
IOT_OpenLog("masterslave");
IOT_SetLogLevel(IOT_LOG_DEBUG);
iotx_conn_info_pt pconn_info;
iotx_mqtt_param_t mqtt_params;
int ret = IOT_SetupConnInfo(productKey, deviceName, deviceSecret, (void **)&pconn_info);
if (ret != SUCCESS_RETURN)
return -1;
mqtt_rbuf = LITE_malloc(maxMsgSize);
if (!mqtt_rbuf)
return -1;
mqtt_wbuf = LITE_malloc(maxMsgSize);
if (!mqtt_wbuf)
goto fail;
/* Initialize MQTT parameter */
memset(&mqtt_params, 0x0, sizeof(mqtt_params));
mqtt_params.port = pconn_info->port;
mqtt_params.host = pconn_info->host_name;
mqtt_params.client_id = pconn_info->client_id;
mqtt_params.username = pconn_info->username;
mqtt_params.password = pconn_info->password;
mqtt_params.pub_key = pconn_info->pub_key;
mqtt_params.request_timeout_ms = 2000;
mqtt_params.clean_session = 0;
mqtt_params.keepalive_interval_ms = 60000;
mqtt_params.pread_buf = mqtt_rbuf;
mqtt_params.read_buf_size = maxMsgSize;
mqtt_params.pwrite_buf = mqtt_wbuf;
mqtt_params.write_buf_size = maxMsgSize;
mqtt_params.handle_event.h_fp = event_handle;
mqtt_params.handle_event.pcontext = NULL;
/* Construct a MQTT client with specify parameter */
mqtt_client = IOT_MQTT_Construct(&mqtt_params);
if (!mqtt_client)
goto fail;
return 0;
fail:
mqtt_deinit_instance();
return -1;
}
int main()
{
IOT_OpenLog("shadow");
IOT_SetLogLevel(IOT_LOG_DEBUG);
char *msg_buf = (char *)HAL_Malloc(SHADOW_MQTT_MSGLEN);
char *msg_readbuf = (char *)HAL_Malloc(SHADOW_MQTT_MSGLEN);
demo_device_shadow(msg_buf, msg_readbuf);
HAL_Free(msg_buf);
HAL_Free(msg_readbuf);
SHADOW_TRACE("out of demo!");
IOT_DumpMemoryStats(IOT_LOG_DEBUG);
IOT_CloseLog();
return 0;
}
