isc::asiodns::IOFetch::Callback Class Reference

I/O Fetch Callback. More...

#include <io_fetch.h>

Inheritance diagram for isc::asiodns::IOFetch::Callback:

Public Member Functions
	Callback ()
	Default Constructor. More...
virtual	~Callback ()
	Virtual Destructor. More...
virtual void	operator() (Result result)=0
	Callback method. More...

Detailed Description

I/O Fetch Callback.

Class of callback object for when the fetch itself has completed - an object of this class is passed to the IOFetch constructor and its operator() method called when the fetch completes.

Note the difference between the two operator() methods:

• IOFetch::operator() callback is called when an asynchronous I/O has completed.
• IOFetch::Callback::operator() is called when an upstream fetch - which may have involved several asynchronous I/O operations - has completed.

This is an abstract class.

Definition at line 98 of file io_fetch.h.

Constructor & Destructor Documentation

isc::asiodns::IOFetch::Callback::Callback ( )

inline

Default Constructor.

Definition at line 101 of file io_fetch.h.

virtual isc::asiodns::IOFetch::Callback::~Callback ( )

inlinevirtual

Virtual Destructor.

Definition at line 105 of file io_fetch.h.

Member Function Documentation

virtual void isc::asiodns::IOFetch::Callback::operator() ( Result  result )

pure virtual

Callback method.

This is the method called when the fetch completes.

Parameters

result

Result of the fetch

Implemented in isc::d2::DNSClientImpl.

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

• io_fetch.h