mosquitto_loop_forever()和mosquitto_loop()是Mosquitto MQTT库中的两个函数,用于处理MQTT消息循环。 mosquitto_loop_forever(): 该函数是一个阻塞调用,会一直运行直到出现错误或手动停止。 它会自动处理MQTT消息,并触发相应的回调函数。 适用于希望在程序的主循环中处理MQTT消息,并且不需要手动控制消息循环结束的情况。
mosquitto_loop_forever()是一个阻塞调用,适用于你只想在回调中处理传入消息的情况。换句话说,调用这个函数,该函数内部调用了一个while(1)循环和mosquitto_loop(),接下来你什么也不能干。 mosquitto_loop_start() & mosquitto_loop_stop()# mosquitto_loop_start(),调用一次以启动一个新线程来处理网络流量。mosqu...
(mosq, 2, 20, false); /* start loop */ int loop = mosquitto_loop_start(mosq); if (loop) { syslog(LOG_ALERT, "error: MQTT: Unable to start loop: %s\n", mosquitto_strerror(loop)); unlocksafe(ac_lock); return wda_restart(ac); } unlocksafe(ac_lock); return mqtt_connect(ac);...
In int handle__publish(struct mosquitto *mosq) There is packet__read_string that returns (correctly) an error on malformed UTF8 in the topic string, but that should not make the connection reset I believe? Suggest maybe changing to packe...
发布订阅(pub/sub)是一种消息通信模式,主要目的是解除消息发布者、消息订阅者之间的耦合 pub/sub的特点...
loop函数主要的用途在于读取、写入接收缓存区的或者发送缓冲区中的数据,并调用对应的回调函数。 Understanding The Loop -Using The Python MQTT Client When writing code using the Paho Python client you would have had to use the loop() function . ...
no-loop:可以理解为它只针对当前规则生效,如果当前规则的RHS部分发生了变更,导致当前规则触发,那么它不会在执行。 lock-on-active:这个一般和agenda-group或ruleflow-group结合使用,它可以保证当前规则只...
文档中说loop_Start()返回“如果线程支持不可用,则返回MOSQ_ERR_NOT_SUPPORTED”。这将导致be because...
_mosquitto_log_printf(NULL, MOSQ_LOG_NOTICE, "Client %s has exceeded timeout, disconnecting.", id); } /* Client has exceeded keepalive*1.5 */ do_disconnect(db, context); } } } last_check = mosquitto_time(); } } #endifint mosquitto_main_loop(struct mosquitto_db *db, mosq_sock_t...
mosquitto__add_context_to_disused(db, context); if(context->id){ HASH_DELETE(hh_id, db->contexts_by_id, context); _mosquitto_free(context->id); context->id = NULL; } } context->state = mosq_cs_disconnected; } }static void loop_handle_reads_writes(struct mosquitto_db *db, struct...