Boost C++ Libraries

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This is the documentation for a snapshot of the develop branch, built from commit 84940c5a0e.

async_immediate (2 of 2 overloads)

Launch a trivial asynchronous operation that completes immediately.

template<
    typename ExecutionContext,
    typename NullaryToken = default_completion_token_t<typename ExecutionContext::executor_type>>
DEDUCED async_immediate(
    ExecutionContext & ctx,
    NullaryToken && token = default_completion_token_t< typename ExecutionContext::executor_type >(),
    constraint_t< is_convertible< ExecutionContext &, execution_context & >::value >  = 0);

The async_immediate function is intended for use by composed operations, which can delegate to this operation in order to implement the correct semantics for immediate completion.

Parameters

ex: The execution context used to obtain the asynchronous operation's I/O executor.
token: The completion token.

The completion handler is immediately submitted for execution by calling dispatch on the handler's associated immediate executor.

If the completion handler does not have a customised associated immediate executor, then the handler is submitted as if by calling post on the I/O executor obtained from the supplied execution context.

Completion Signature

void()