Function socketSetNonBlockNoDelay

chatlib.c:23–35

Set the specified socket in non-blocking mode, with no delay flag. */

/* Set the specified socket in non-blocking mode, with no delay flag. */
int socketSetNonBlockNoDelay(int fd) {
    int flags, yes = 1;

    /* Set the socket nonblocking.
     * Note that fcntl(2) for F_GETFL and F_SETFL can't be
     * interrupted by a signal. */
    if ((flags = fcntl(fd, F_GETFL)) == -1) return -1;
    if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) return -1;

    /* This is best-effort. No need to check for errors. */
    setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &yes, sizeof(yes));
    return 0;
}

/* Create a TCP socket listening to 'port' ready to accept connections. */
int createTCPServer(int port) {