ConnectionAwaiter Class Reference

#include <Pt/Db/Connection.h>

Base awaiter for a pending connection operation.

Inherits Awaiter, and Connectable.

Inherited by AsyncClose, AsyncExecute, AsyncOpen, AsyncPing, and AsyncSelect.

Public Member Functions
bool	await_ready () const
	Returns false so co_await always suspends.
template<typename P>
bool	await_suspend (std::coroutine_handle< P > h)
	Starts the operation and suspends the coroutine.
void	cancel () override
	Cancels the in-flight operation.

Protected Member Functions
void	onCancel () override
	Aborts the in-flight operation.
void	setReady ()
	Resumes the waiting coroutine.
virtual void	onBegin ()=0
	Starts the asynchronous operation.

Member Function Documentation

onCancel()

void onCancel ( )

overrideprotectedvirtual

Called from Awaiter::cancel() when the waiting task or generator is cancelled.

Implements Awaiter.

setReady()

void setReady ( )

protectedinherited

Call this when the asynchronous operation has completed. Typically connect a completion signal to this method.

onBegin()

virtual void onBegin ( )

protectedpure virtualinherited

Subscribe to completion and begin the work. The coroutine remains suspended until Awaiter::setReady() is called.

Implemented in AsyncYield.