Function wait_for_nonblocking_write

src/iopoll.c:179–195

   Return true, if EAGAIN has been successfully handled. */

static bool
wait_for_nonblocking_write (int fd)
{
  if (! IS_EAGAIN (errno))
    /* non-recoverable write error */
    return false;

  /* wait for the file descriptor to become writable */
  if (iopoll_internal (-1, fd, true, false) != 0)
    {
      errno = EAGAIN;
      return false;
    }

  /* successfully waited for the descriptor to become writable */
  return true;
}

/* wrapper for close() that also waits for FD if non blocking.  */