network_io/unix/sockopt.c

25     int fd_flags;
27     fd_flags = fcntl(sd, F_GETFL, 0);
29     fd_flags &= ~O_NONBLOCK;
31     fd_flags &= ~O_NDELAY;
33     fd_flags &= ~FNDELAY;
37     if (fcntl(sd, F_SETFL, fd_flags) == -1) {
51     int fd_flags;
53     fd_flags = fcntl(sd, F_GETFL, 0);
55     fd_flags |= O_NONBLOCK;
57     fd_flags |= O_NDELAY;
59     fd_flags |= FNDELAY;
63     if (fcntl(sd, F_SETFL, fd_flags) == -1) {