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Inherited from posix::basic_descriptor.
Sets the non-blocking mode of the native descriptor implementation.
void native_non_blocking(
bool mode,
asio::error_code & ec);
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).
Set to indicate what error occurred, if any. 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.