// initialize redis
bool redis_init(redisContext* c) {
    c = redisConnect(REDIS_HOST, REDIS_PORT);

    if (c == NULL || c->err) {
        if (c) {
            printf("Redis connection error: %s\n", c->errstr);
            redisFree(c);
        } else
            printf("Redis connection error: can't allocate redis context\n");

        return false;
    }

    redisReply* redReply = reinterpret_cast<redisReply*>(redisCommand(c, "PING"));
    printf("PING: %s\n", redReply->str);
    freeReplyObject(redReply);

    printf("Redis started successfully\n");

    return true;
}

my_function(redisContext* c) {
    redisReply* redReply = reinterpret_cast<redisReply*>(redisCommand(c, "PING2"));
    printf("PING2: %s\n", redReply->str);
    freeReplyObject(redReply);
}

int main(int argc, char* argv[]) {
    redisContext* c;

    if (redis_init(c))
        my_function(c);

    return 0;
}