Net::DBus::Callback - a callback for receiving reactor events
use Net::DBus::Callback; # Assume we have a terminal object and its got a method # to be invoked every time there is input on its terminal. # # To create a callback to invoke this method one might use my $cb = Net::DBus::Callback->new(object => $terminal, method => "handle_stdio"); # Whatever is monitoring the stdio channel, would then # invoke the callback, perhaps passing in a parameter with # some interesting data, such as number of bytes available $cb->invoke($nbytes) #... which results in a call to # $terminal->handle_stdio($nbytes)
This module provides a simple container for storing details about a callback to be invoked at a later date. It is used when registering to receive events from the Net::DBus::Reactor class. NB use of this module in application code is no longer necessary and it remains purely for backwards compatibility. Instead you can simply pass a subroutine code reference in any place where a callback is desired.
Creates a new callback object, for invoking a plain old function. The
method parameter should be the fully qualified function
name to invoke, including the package name. The optional
args parameter is an array reference of parameters to be
pass to the callback, in addition to those passed into the
invoke method.
Creates a new callback object, for invoking a method on an object.
The method parameter should be the name of the method to
invoke, while the object parameter should be a blessed
object on which the method will be invoked. The optional
args parameter is an array reference of parameters to be
pass to the callback, in addition to those passed into the
invoke method.
Invokes the callback. The argument list passed to the callback is a
combination of the arguments supplied in the callback constructor,
followed by the arguments supplied in the invoke
method.
Daniel P. Berrange.
Copyright (C) 2004-2011 Daniel P. Berrange
Net::DBus::Reactor