#### posix::basic_descriptor::non_blocking_io

Inherited from posix::descriptor_base.

IO control command to set the blocking mode of the descriptor.

    typedef implementation_defined non_blocking_io;

Implements the FIONBIO IO control command.

###### Example

    asio::posix::stream_descriptor descriptor(io_service);
    ...
    asio::descriptor_base::non_blocking_io command(true);
    descriptor.io_control(command);