(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。 返回值: MOSQ_ERR_SUCCESS:关于成功。 MOSQ_ERR_UNKNOWN:在 Windows 上,不能初始化套接字。 (2)mosquitto_lib_cleanup intmosquitto_lib_cleanup(NULL) 功能:调用与库相关的资源释放。 返回值: MOSQ_E...
int mosquitto_lib_version(int *major, int *minor, int *revision) 查看mosquitto源码的系统版本号 int mosquitto_lib_init(void) 初始化需要的网络资源 int mosquitto_lib_cleanup(void) 将mosquitto_lib_init函数开启的各项服务关闭,释放一些使用到的内存空间 struct mosquitto *mosquitto_new(const char *id, ...
but the payload can be anything so take care. */ printf("%s %d %s\n", msg->topic, msg->qos, (char *)msg->payload); } int main(int argc, char *argv[]) { struct mosquitto *mosq; int rc; int mid; /* Required before calling other mosquitto functions */ mosquitto_lib_init();...
我今天讲的函数是我用到的,也是我们常见的函数,更多的API学习:请参考:https://mosquitto.org/api/files/mosquitto-h.html 1、int mosquitto_lib_init(void) 功能:使用mosquitto库函数前,要先初始化,使用之后就要清除。清除函数;int mosquitto_lib_cleanup(); 返回值:MOSQ_ERR_SUC... ...
#include<stdio.h>#include<string.h>#include<mosquitto.h>intmain(){//1、初始化mosquitto_lib_init();//2、创建客户端structmosquitto*pub_client=mosquitto_new("pub",false,NULL);if(pub_client==NULL){printf("创建客户端失败");return-1;}//3、连接服务器intret=mosquitto_connect(pub_client,"10.9...
intmosquitto_lib_init(void)功能: 使用mosquitto库函数前,要先初始化,使用之后就要清除。清除函数;intmosquitto_lib_cleanup()返回值:MOSQ_ERR_SUCCESS 2. MQTT 清除 函数原型: intmosquitto_lib_cleanup(void)功能:使用MQTT之后,清除工作 返回值MOSQ_ERR_SUCCESS ...
; int keepalive = 60; bool clean_session = true; // 初始化mosquitto库 mosquitto_lib_init(); // 创建MQTT客户端 mosq = mosquitto_new(NULL, clean_session, NULL); if (!mosq) { std::cerr << "Failed to create MQTT client" << std::endl; return -1; } // 设置消息回调函数 mosquitto...
mosquitto_lib_init(); mosq= mosquitto_new(conf->clientid, conf->clean_session, NULL); #ifdef MQTT_DEBUGLOG mosquitto_log_callback_set(mosq, log_callback);#endifmosquitto_connect_callback_set(mosq, on_connect); mosquitto_publish_callback_set(mosq, on_publish); ...
#include<mosquitto.h>voidon_publish(structmosquitto*mosq,void*userdata,intmid){printf("Message published successfully.\n");}intmain(void){structmosquitto*mosq=NULL;/* 初始化 Mosquitto 客户端 */mosquitto_lib_init();/* 创建 Mosquitto 客户端实例 */mosq=mosquitto_new(NULL,true,NULL);/* 设置发布...
#将进程id写入文件。默认值为空字符串,表示不应写入pid文件。 #如果mosquitto为在启动时使用init脚本自动运行,启动停止守护程序或类似程序,则应将其设置为/var/run/mosquitto.pid # 服务进程PID #pid_file #以root用户身份运行时,删除此用户及其主要组的权限。