#include "includes/mosquitto.h" // mqtt #include "includes/sqlite3.h" // sqlite3 #include // bool #include #include #include int isConnected = 0; void connect_callback(struct mosquitto *mosq, void *obj, int rc) { if (rc == 0) { printf("---连接服务器成功---\n"); isConnected = 1; } } int main(int argc, char const *argv[]) { if (argc < 3) { printf("format: %s msgid topic msg", argv[0]); return -1; } mosquitto_lib_init(); // 初始化(固定格式) struct mosquitto *client = mosquitto_new(NULL, true, NULL); // 创建客户端 mosquitto_connect_callback_set(client, connect_callback); // 设置连接回调函数 // mosquitto_connect(client, "localhost", 1883, 60); // 连接服务器(地址,端口,超时时间) mosquitto_connect(client, "flykhan.com", 1883, 60); // 连接服务器(地址,端口,超时时间) mosquitto_loop_start(client); // 开启客户端线程 while (isConnected == 0) ; // 等待连接成功(当连接成功后,isConnected会被置为1,然后跳出循环) int msg_id = atoi(argv[1]); // 消息ID char *topic = (char *)argv[2]; // 主题 char *msg = (char *)argv[3]; // 消息 int flag = mosquitto_publish(client, &msg_id, topic, strlen(msg), msg, 1, true); // 发布消息 // 发布成功 if (flag == MOSQ_ERR_SUCCESS) { printf("---消息发布成功: %s(%d):%s---\n", topic, msg_id, msg); mosquitto_destroy(client); mosquitto_lib_cleanup(); } return 0; }