Overview

template<typename T>
class pw::async2::ValueProvider< T >

A one-to-one provider for a single value.

An ValueProvider can only vend one ValueFuture at a time.

This provider is multi-shot: after Resolve is called, a new future can be retrieved with Get to wait for the next Resolve event.

Public Member Functions
ValueFuture< T >	Get ()

std::optional< ValueFuture< T > >	TryGet ()

bool	has_future ()
	Returns `true` if the provider stores a pending future.

template<typename... Args, typename U = T, std::enable_if_t<!std::is_void_v< U >, int > = 0>
void	Resolve (Args &&... args)
	Resolves the pending `ValueFuture` by constructing its value in-place.

template<typename U = T, std::enable_if_t< std::is_void_v< U >, int > = 0>
void	Resolve ()
	Resolves the pending `ValueFuture`.

Member Function Documentation

template<typename T >

ValueFuture< T > pw::async2::ValueProvider< T >::Get ( )

inline

Returns a ValueFuture that will be completed when Resolve is called.

If a future has already been vended and is still pending, this crashes.

template<typename T >

std::optional< ValueFuture< T > > pw::async2::ValueProvider< T >::TryGet ( )

inline

Returns a ValueFuture that will be completed when Resolve is called.

If a future has already been vended and is still pending, this will return std::nullopt.

The documentation for this class was generated from the following file: