# Set whether this socket is non blocking
	fun non_blocking=(value: Bool) `{
		int flags = fcntl(*self, F_GETFL, 0);
		if (flags == -1) flags = 0;

		if (value) {
			flags = flags | O_NONBLOCK;
		} else if (flags & O_NONBLOCK) {
			flags = flags - O_NONBLOCK;
		} else {
			return;
		}
		fcntl(*self, F_SETFL, flags);
	`}