Proc::JobQueue::EventQueue - JobQueue combined with IO::Event


 use Proc::JobQueue::EventQueue;
 use Proc::JobQueue::DependencyTask;
 use Proc::JobQueue::DependencyJob;

 my $queue = Proc::JobQueue::EventQueue->new(
        hold_all => 1,

 my $job = Proc::JobQueue::DependencyJob->new($queue, $callback_func);

 my $task => Proc::JobQueue::DependencyTask->new(desc => $desc, func => $callback_func);





 IO::Event::unloop_all() if $queue->alldone;


This module is a sublcass of Proc::JobQueue. It combines the job queue with IO::Event for an asynchronous event loop. IO::Event can use a select loop from Event, AnyEvent or its own.

The jobs that it runs are either full-fledged jobs, Proc::JobQueue::DependencyJob, or simple synchronous one-shot perl callbacks that execute as soon as their prerequisites are met: Proc::JobQueue::DependencyTask.

Generally, the way to use this is to generate your dependency graph, then create your job queue, then start some jobs.


In addition to the parameters supported by Proc::JobQueue, the following construction parameters are used:


Code REF. If provided, invoke it to when the job queue is empty instead of calling IO::Event::unloop_all().


Code REF. If provided, override the default behavior of how to handle the failure of a job. See the code for details.


Copyright (C) 2007-2008 SearchMe, Inc. Copyright (C) 2008-2010 David Sharnoff. Copyright (C) 2011 Google, Inc. This package may be used and redistributed under the terms of either the Artistic 2.0 or LGPL 2.1 license.