Control the non-blocking state of the given file descriptor, according to @nonblock. On most systems this uses %O_NONBLOCK, but on some older ones may use %O_NDELAY.
A file descriptor
If %TRUE, set the descriptor to be non-blocking
Return: %TRUE if successful
GException on failure.
2.30
See Implementation
Control the non-blocking state of the given file descriptor, according to @nonblock. On most systems this uses %O_NONBLOCK, but on some older ones may use %O_NDELAY.