Sets the non-blocking mode of the acceptor.
void non_blocking( bool mode, std::error_code & ec);
If true
, the acceptor's
synchronous operations will fail with std::experimental::net::v1::error::would_block
if they are unable to perform the requested operation immediately.
If false
, synchronous
operations will block until complete.
Set to indicate what error occurred, if any.
The non-blocking mode has no effect on the behaviour of asynchronous
operations. Asynchronous operations will never fail with the error std::experimental::net::v1::error::would_block
.