Event: DevMob 2010

 
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Old 01-26-2010
Event: DevMob 2010

Register for Dev Mob 2010 - free London conference/barcamp giving developers interested in portable devices the opportunity to discuss their issues and find solutions.

If you would like to suggest or host a session (or just participate) on any kind of mobile development issue, please register at DevMob 2010 - Uniting mobile application developers in London

Event details:
3rd February 2010
10am-5pm
Science Museum, South Kensington, London
Registration is free and refreshments will be provided!

Plus: chance to win a netbook courtesy of ASUS (event sponsors)
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Sys::Virt::Event(3)					User Contributed Perl Documentation				       Sys::Virt::Event(3)

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_default() Register the default libvirt event loop implementation run_default() Run a single iteration of the default event loop implementation 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. my $watch = Sys::Virt::Event::add_handle($fd, $events, $coderef) Adds a watch on the file descriptor $fd for the events $events which is a mask of the FILE HANDLE EVENTS constants listed later. The $coderef parameter is a subroutine to invoke when an event is triggered. The subroutine will be passed three parameters, the watch identifier, the file descriptor and the event mask. This method returns the watch identifier which can be used to update or remove the watch Sys::Virt::Event::update_handle($watch, $events) Update the event mask for the file descriptor watch $watch to use the events $events. Sys::Virt::Event::remove_handle($watch) Remove the event mask for the file descriptor watch $watch. my $watch = Sys::Virt::Event::add_timeout($frequency, $coderef) Adds a timeout to trigger with $frequency milliseconds interval. The $coderef parameter is a subroutine to invoke when an event is triggered. The subroutine will be passed one parameter, the timer identifier. This method returns the watch identifier which can be used to update or remove the watch Sys::Virt::Event::update_timeout($timer, $frequency) Update the timeout $timer to have the frequency $frequency milliseconds. Sys::Virt::Event::remove_timeout($timer) Remove the timeout $timer 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" perl v5.16.3 2013-07-30 Sys::Virt::Event(3)