Proc::Launcher::Supervisor - restart watched processes that have exited

Proc-Launcher documentation Contained in the Proc-Launcher distribution.

Index

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NAME

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Proc::Launcher::Supervisor - restart watched processes that have exited

VERSION

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version 0.0.35

DESCRIPTION

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This is a tiny module that's designed for use with panctl and Proc::Launcher, where it is forked off and run as a separate process.

ATTRIBUTES

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monitor_delay

Number of seconds to sleep before attempting to restart any daemons that aren't running. Defaults to 15.

manager

A Proc::Launcher::Manager object, with daemons already registered. The supervisor will call the manager's start method at regular intervals. This will start any daemons that are not found running.

METHODS

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$obj->monitor()

This tiny class contains only this one method.

It will repeatedly sleep for a configured period of time (default 15 seconds), and then call start_all() on the manager object. This will result in restarting any processes that have stopped.

LICENCE AND COPYRIGHT

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Copyright (c) 2009, VVu@geekfarm.org All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Proc-Launcher documentation Contained in the Proc-Launcher distribution. 
package Proc::Launcher::Supervisor;
use strict;
use warnings;

our $VERSION = '0.0.35'; # VERSION

use Mouse;

has 'monitor_delay' => ( is       => 'rw',
                         isa      => 'Int',
                         default  => 15,
                     );

has 'manager'       => ( is       => 'rw',
                         isa      => 'Proc::Launcher::Manager',
                         required => 1,
                     );

sub monitor {
    my ( $self ) = @_;

    sleep 5;

    while ( 1 ) {
        $self->manager->start();
        sleep $self->monitor_delay;
    }
}

no Mouse;

1;

__END__