BasicAsyncCall< R > Class Template Reference

#include <Pt/Lua/AsyncCall.h>

Asynchronous native call with result type R. More...

Inherits AsyncCall.

Public Member Functions
void	bind (Pt::Reflex::TypeManager &tm)
	Binds the result type from tm.
Pt::Reflex::Type *	rtype () const
	Returns the Reflex result type, or a null pointer before bind.
void	beginCall (Pt::System::EventLoop &loop)
	Starts the call on loop.
Pt::Any	getResult ()
	Returns the result after the call has finished.
Pt::Signal &	finished ()
	Signal emitted when the call is ready or has failed.
void	cancel ()
	Cancels the call.
bool	hasError () const
	Returns true when the call stored an error.
const std::string &	errorMessage () const
	Returns the stored error text.

Protected Member Functions
virtual R	onResult ()=0
	Returns the result of the finished call.
void	setReady ()
	Emits finished() to mark the call ready.
void	setError (const std::string &msg)
	Stores msg as the error of this call.

Detailed Description

template<typename R>
class Pt::Lua::BasicAsyncCall< R >

BasicAsyncCall looks up typeid(R) at bind time. Override onBeginCall() to start work on the loop, onResult() to produce R, and onCancel() to abort. Call setReady() or setError() when the work ends.