Function setsockopt

app/redis-6.2.6/src/anet_ff.c:248–262

}

int
setsockopt (int sockfd, int level, int optname,
    const void *optval, socklen_t optlen)
{
    if (unlikely(inited == 0)) {
        INIT_FUNCTION(setsockopt);
        return real_setsockopt(sockfd, level, optname, optval, optlen);
    }

    if (ff_fdisused(sockfd)) {
        return ff_setsockopt(sockfd, level, optname, optval, optlen);
    } else {
        return real_setsockopt(sockfd, level, optname, optval, optlen);
    }
}

int
accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen)