---
name: "Event::ExecFlow::Scheduler"
section: "3pm"
platform: "linux"
package: "perl-event-execflow"
version: "0.64-10"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Event::ExecFlow::Scheduler"
---

# Event::ExecFlow::Scheduler(3pm)

Abstract class for parallel scheduling

## NAME

Event::ExecFlow::Scheduler - Abstract class for parallel scheduling

## SYNOPSIS

```
  #-- Create a new Scheduler object
  my $scheduler = Event::ExecFlow::Scheduler::XYZ->new ( ... );
  #-- Attach scheduler to a group job with parallel execution
  $group_job->set_parallel(1);
  $group_job->set_scheduler($scheduler);
  #-- The following methods gets called by Event::ExecFlow
  #-- at runtime
  $scheduler->schedule_job($job);
  $scheduler->job_finished($job);
```

## DESCRIPTION

This abstract base class represents just an interface which needs to be implemented by custom schedulers for controlling the execution of jobs in a Event::ExecFlow::Group which has the parallel option set.

Event::ExecFlow ships a very simple example for a scheduler which just limits the maximum number of parallel executed jobs: Event::ExecFlow::Scheduler::SimpleMax.

## OBJECT HIERARCHY

```
  Event::ExecFlow
  Event::ExecFlow::Job
  +--- Event::ExecFlow::Job::Group
  +--- Event::ExecFlow::Job::Command
  +--- Event::ExecFlow::Job::Code
  Event::ExecFlow::Frontend
  Event::ExecFlow::Callbacks
  Event::ExecFlow::Scheduler
  +--- Event::ExecFlow::Scheduler::SimpleMax
```

## METHODS

\[ FIXME: describe all methods in detail \]

## AUTHORS

```
 Jörn Reder <joern at zyn dot de>
```

## COPYRIGHT AND LICENSE

Copyright 2005-2006 by Jörn Reder.

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public License for more details.

You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307 USA.

## POD ERRORS

Hey! **The above document had some coding errors, which are explained below:**

- Around line 63:

  Non-ASCII character seen before =encoding in 'Jörn'. Assuming CP1252