Control the non-blocking state of the given file descriptor,
nonblock. On most systems this uses
on some older ones may use
Available since: 2.30
A file descriptor.
TRUE, set the descriptor to be non-blocking.
The return location for a recoverable error.
The argument can be
If the return location is not
NULL, then you must initialize it to a
The argument will left initialized to
NULLby the function if there are no errors.
In case of error, the argument will be set to a newly allocated
GError; the caller will take ownership of the data, and be responsible for freeing it.