Example if hiredis subscribe with libevent

example.c

    #include <stdio.h>
    #include <stdlib.h>
    #include <string.h>
    #include <signal.h>
    #include "hiredis.h"
    #include "async.h"
    #include "adapters/libevent.h"

    void subCallback(redisAsyncContext *c, void *r, void *priv) {
        redisReply *reply = r;
        if (reply == NULL) return;
        if ( reply->type == REDIS_REPLY_ARRAY && reply->elements == 3 ) {
            if ( strcmp( reply->element[0]->str, "subscribe" ) != 0 ) {
                printf( "Received[%s] channel %s: %s\n",
                        (char*)priv,
                        reply->element[1]->str,
                        reply->element[2]->str );
            }
        }
    }

    void connectCallback(const redisAsyncContext *c, int status) {
        if (status != REDIS_OK) {
            printf("Error: %s\n", c->errstr);
            return;
        }
        printf("Connected...\n");
    }

    void disconnectCallback(const redisAsyncContext *c, int status) {
        if (status != REDIS_OK) {
            printf("Error: %s\n", c->errstr);
            return;
        }
        printf("Disconnected...\n");
    }

    int main (int argc, char **argv) {
        signal(SIGPIPE, SIG_IGN);
        struct event_base *base = event_base_new();

        redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379);
        if (c->err) {
            /* Let *c leak for now... */
            printf("Error: %s\n", c->errstr);
            return 1;
        }

        redisLibeventAttach(c,base);
        redisAsyncSetConnectCallback(c,connectCallback);
        redisAsyncSetDisconnectCallback(c,disconnectCallback);
        redisAsyncCommand(c, subCallback, (char*) "sub", "SUBSCRIBE foo");

        event_base_dispatch(base);
        return 0;
    }