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mosquitto/test/lib/c/02-subscribe-helper-callbac...

34 lines
582 B
C

#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <mosquitto.h>
#define QOS 2
int cb(struct mosquitto *mosq, void *userdata, const struct mosquitto_message *msg)
{
assert(msg);
assert(!strcmp(msg->topic, "qos2/test"));
return 1;
}
int main(int argc, char *argv[])
{
int port;
if(argc < 2){
return 1;
}
port = atoi(argv[1]);
mosquitto_lib_init();
mosquitto_subscribe_callback(
cb, NULL, "qos2/test", QOS, "localhost", port,
"subscribe-qos2-test", 60, true, NULL, NULL, NULL, NULL);
mosquitto_lib_cleanup();
return 0;
}