Function ioctl

app/redis-6.2.6/src/anet_ff.c:367–380

}

int
ioctl(int sockfd, int request, void *p)
{
    if (unlikely(inited == 0)) {
        INIT_FUNCTION(ioctl);
        return real_ioctl(sockfd, request, p);
    }

    if (ff_fdisused(sockfd)) {
        return ff_ioctl(sockfd, request, p);
    } else {
        return real_ioctl(sockfd, request, p);
    }
}

int fcntl(int sockfd, int cmd, void *p)
{