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