Inherited from posix::descriptor.
Sets the non-blocking mode of the native descriptor implementation.
void native_non_blocking( bool mode);
This function is used to modify the non-blocking mode of the underlying native descriptor. It has no effect on the behaviour of the descriptor object's synchronous operations.
If true
, the underlying descriptor is put into non-blocking
mode and direct system calls may fail with asio::error::would_block
(or the equivalent system error).
Thrown on failure. If the mode
is false
,
but the current value of non_blocking()
is true
,
this function fails with asio::error::invalid_argument
,
as the combination does not make sense.