command timeout

gistfile1.txt

#include <hiredis/hiredis.h>
#include <stdio.h>
#include <time.h>

static void timeoutToTimeval(struct timeval *tv, double timeout) {
    tv->tv_sec = (time_t)timeout;
    tv->tv_usec = (int)((timeout - tv->tv_sec) * 1000000);
}

int main(int argc, const char **argv) {
    struct timeval tv;
    double timeout;
    time_t tm1, tm2;

    redisContext *c;
    redisReply *r;

    /* Connect with a 100s timeout */
    timeoutToTimeval(&tv, 20);
    c = redisConnectUnixWithTimeout("/tmp/redis.sock", tv);
    if (!c || c->err) {
        fprintf(stderr, "Error:  Can't connect!\n");
        return -1;
    }

    /* Set a 2 second communication timeout */
    if (argc > 1) {
        timeoutToTimeval(&tv, 2.0);
        redisSetTimeout(c, tv);
    }

    tm1 = time(NULL);
    r = redisCommand(c, "DEBUG SLEEP 5");
    tm2 = time(NULL);

    if (!r || c->err) {
        printf("Errored out after ~%lds\n", tm2-tm1);
    } else {
        printf("No error after ~%lds\n", tm2-tm1);
    }

    return 0;
}