mosquitto_log_callback_set(mosq, mqtt_log_callback); mosquitto_connect_callback_set(mosq, mqtt_connect_callback); mosquitto_message_callback_set(mosq, mqtt_message_callback); mosquitto_subscribe_callback_set(mosq, mqtt_subscribe_callback); //客户端连接服务器 err =mosquitto_connect(mosq, HOST...
mosq=mosquitto_new(NULL,true,NULL);if(mosq==NULL){fprintf(stderr,"Error: Out of memory.\n");return1;}// 配置回调函数mosquitto_connect_callback_set(mosq,on_connect);mosquitto_subscribe_callback_set(mosq,on_subscribe);mosquitto_message_callback_set(mosq,on_message);mosquitto_disconnect_callba...
mosquitto_log_callback_set(mosq, mqtt_log_callback); mosquitto_connect_callback_set(mosq, mqtt_connect_callback); mosquitto_message_callback_set(mosq, mqtt_message_callback); mosquitto_subscribe_callback_set(mosq, mqtt_subscribe_callback); //客户端连接服务器 err = mosquitto_connect(mosq, HOS...
*/ mosquitto_connect_callback_set(mosq, on_connect); mosquitto_subscribe_callback_set(mosq, on_subscribe); mosquitto_message_callback_set(mosq, on_message); /* Connect to test.mosquitto.org on port 1883, with a keepalive of 60 seconds. * This call makes the socket connection only, it ...
(5)mosquitto_subscribe_callback_set (6)mosquitto_unsubscribe_callback_set (7)mosquitto_log_callback_set 八、实用功能 mosquitto_strerror 九、常见返回值 一、初始化和清理 (1)mosquitto_lib_init intmosquitto_lib_init(NULL) 功能:初始化mosquitto,一定是别的mosqtto使用函数前。
void my_connect_callback(struct mosquitto *mosq, void *userdata, int result) { int i; if(!result){ /* Subscribe to broker information topics on successful connect. */ mosquitto_subscribe(mosq, NULL, "$SYS/#", 2); }else{ fprintf(stderr, "Connect failed\n"); ...
voidmy_subscribe_callback(structmosquitto *mosq,void*userdata,intmid,intqos_count,constint*granted_qos) { inti; printf("Subscribed (mid: %d): %d", mid, granted_qos[0]); for(i=1; i<qos_count; i++){ printf(", %d", granted_qos[i]); ...
voidmy_connect_callback(structmosquitto*mosq,void*userdata,intresult) { inti; if(!result){ /* Subscribe to broker information topics on successful connect. */ mosquitto_subscribe(mosq,NULL,"CCYY ",2); }else{ fprintf(stderr,"Connect failed\n"); ...
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问题是当我试图订阅所有主题时,这通常是作为client.subscribe('#',callback)完成的,它没有订阅任何主题。) listenIncoming()client.on('error',err=>{ console.log("E 浏览67提问于2021-11-16得票数 0 回答已采纳 2回答 读入.db文件 、 我在使用摩斯基托项目(),这是我的mosquitto.conf persistence_locati...