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async_result

An interface for customising the behaviour of an initiating function.

template<
    typename CompletionToken,
    typename Signature>
class async_result
Types

Name

Description

completion_handler_type

The concrete completion handler type for the specific signature.

return_type

The return type of the initiating function.

Member Functions

Name

Description

async_result

Construct an async result from a given handler.

get

Obtain the value to be returned from the initiating function.

The async_result traits class is used for determining:

The trait allows the handler and return types to be determined at the point where the specific completion handler signature is known.

This template may be specialised for user-defined completion token types. The primary template assumes that the CompletionToken is the completion handler.

Requirements

Header: boost/asio/async_result.hpp

Convenience header: boost/asio.hpp


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