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68 lines
1.2 KiB
C
68 lines
1.2 KiB
C
#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <mosquitto.h>
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static int run = -1;
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static void on_connect(struct mosquitto *mosq, void *obj, int rc)
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{
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(void)obj;
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if(rc){
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exit(1);
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}else{
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mosquitto_unsubscribe(mosq, NULL, "unsubscribe/test");
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}
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}
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static void on_disconnect(struct mosquitto *mosq, void *obj, int rc)
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{
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(void)mosq;
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(void)obj;
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run = rc;
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}
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static void on_unsubscribe(struct mosquitto *mosq, void *obj, int mid)
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{
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(void)obj;
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(void)mid;
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mosquitto_disconnect(mosq);
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}
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int main(int argc, char *argv[])
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{
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int rc;
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struct mosquitto *mosq;
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int port;
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if(argc < 2){
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return 1;
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}
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port = atoi(argv[1]);
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mosquitto_lib_init();
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mosq = mosquitto_new("unsubscribe-test", true, NULL);
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if(mosq == NULL){
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return 1;
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}
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mosquitto_int_option(mosq, MOSQ_OPT_PROTOCOL_VERSION, MQTT_PROTOCOL_V5);
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mosquitto_connect_callback_set(mosq, on_connect);
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mosquitto_disconnect_callback_set(mosq, on_disconnect);
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mosquitto_unsubscribe_callback_set(mosq, on_unsubscribe);
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rc = mosquitto_connect(mosq, "localhost", port, 60);
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if(rc != MOSQ_ERR_SUCCESS) return rc;
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while(run == -1){
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mosquitto_loop(mosq, -1, 1);
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}
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mosquitto_destroy(mosq);
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mosquitto_lib_cleanup();
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return run;
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}
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