#include #include #include #include #include static int run = -1; void on_connect(struct mosquitto *mosq, void *obj, int rc) { if(rc){ exit(1); }else{ mosquitto_publish(mosq, NULL, "pub/qos2/test", strlen("message"), "message", 2, false); } } void on_publish(struct mosquitto *mosq, void *obj, int mid, int reason_code, const mosquitto_property *properties) { mosquitto_disconnect(mosq); } void on_disconnect(struct mosquitto *mosq, void *obj, int rc) { run = 0; } int main(int argc, char *argv[]) { int rc; struct mosquitto *mosq; int port = atoi(argv[1]); mosquitto_lib_init(); mosq = mosquitto_new("publish-qos2-test", true, NULL); mosquitto_int_option(mosq, MOSQ_OPT_PROTOCOL_VERSION, MQTT_PROTOCOL_V5); mosquitto_connect_callback_set(mosq, on_connect); mosquitto_disconnect_callback_set(mosq, on_disconnect); mosquitto_publish_v5_callback_set(mosq, on_publish); mosquitto_message_retry_set(mosq, 3); rc = mosquitto_connect(mosq, "localhost", port, 60); while(run == -1){ mosquitto_loop(mosq, 300, 1); } mosquitto_destroy(mosq); mosquitto_lib_cleanup(); return run; }