posix::descriptor::non_blocking (2 of 3 overloads)

Sets the non-blocking mode of the descriptor.

void non_blocking(
    bool mode);

Parameters

mode: If true, the descriptor's synchronous operations will fail with asio::error::would_block if they are unable to perform the requested operation immediately. If false, synchronous operations will block until complete.

Exceptions

asio::system_error: Thrown on failure.

Remarks

The non-blocking mode has no effect on the behaviour of asynchronous operations. Asynchronous operations will never fail with the error asio::error::would_block.