Sys::Virt::Event(3pm)
NAME
Sys::Virt::Event - An event loop contract
DESCRIPTION
The "Sys::Virt::Event" module represents the contract for integrating
libvirt with an event loop. This package is abstract and intended to be
subclassed to provide an actual implementation.
METHODS
- register($impl)
- Register an event loop implementation. The implementation should be a instance of a sub-class of the "Sys::Virt::Event" package.
- $self->_run_handle_callback($watch, $fd, $events, $cb, $opaque)
- A helper method for executing a callback in response to one of more
$events on the file handle $fd. The $watch number is the unique
idenifier associated with the file descriptor. The $cb and $opaque parameters are the callback and data registered for the handle. - $self->_run_timeout_callback($timer, $cb, $opaque)
- A helper method for executing a callback in response to the expiry
of a timeout identified by $timer. The $cb and $opaque parameters
are the callback and data registered for the timeout. - $self->_free_callback_opaque($ff, $opaque)
- A helper method for freeing the data associated with a callback.
The $ff and $opaque parameters are the callback and data registered for the handle/timeout.
CONSTANTS
- FILE HANDLE EVENTS
- When integrating with an event loop the following constants define the file descriptor events
- Sys::Virt::Event::HANDLE_READABLE
The file descriptor has data available for read without blocking
- Sys::Virt::Event::HANDLE_WRITABLE
The file descriptor has ability to write data without blocking
- Sys::Virt::Event::HANDLE_ERROR
An error occurred on the file descriptor
- Sys::Virt::Event::HANDLE_HANGUP
The remote end of the file descriptor closed
AUTHORS
Daniel P. Berrange <berrange@redhat.com>
COPYRIGHT
Copyright (C) 2006-2009 Red Hat Copyright (C) 2006-2009 Daniel P.
Berrange
LICENSE
This program is free software; you can redistribute it and/or modify it
under the terms of either the GNU General Public License as published
by the Free Software Foundation (either version 2 of the License, or at
your option any later version), or, the Artistic License, as specified
in the Perl README file.
SEE ALSO
- Sys::Virt, "http://libvirt.org"