Proc::DaemonLite - Simple server daemonisation module

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NAME

Proc::DaemonLite - Simple server daemonisation module

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SYNOPSIS

 use strict;
 use Proc::DaemonLite qw(:all);
 
 my $pid = init_server();
 log_warn("Forked in to background PID $pid");
 
 $SIG{__WARN__} = \&log_warn;
 $SIG{__DIE__} = \&log_die;
 
 for my $cid (1..4) {
     my $child = launch_child();
     if ($child == 0) {
         log_warn("I am child PID $$") while sleep 2;
         exit;
     } else {
         log_warn("Spawned child number $cid, PID $child");
     }
 }
 
 sleep 20;
 kill_children();

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DESCRIPTION

Proc::DaemonLite is a basic server daemonisation module that trys to cater for most basic Perl daemon requirements.

The POD for this module is incomplete, as is some of the tidying of the code. It is however fully functional. This is a pre-release in order to reserve the namespace before it becomes unavailable.

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EXPORTS

By default only init_server() is exported. The export tag all will export the following: init_server(), kill_children(), launch_child(), do_relaunch(), log_debug(), log_notice(), log_warn(), log_info(), log_die() and %CHILDREN.

init_server()

 my $pid = init_server($pidfile, $user, $group);

launch_child()

 my $child_pid = launch_child($callback, $home);

kill_children()

 kill_children();

Terminate all children with a TERM signal.

do_relaunch()

 do_relaunch()

Attempt to start a new incovation of the current script.

log_debug()

 log_debug(@messages);

log_info()

 log_info(@messages);

log_notice()

 log_notice(@messages);

log_warn()

 log_warn(@messages);

log_die()

 log_die(@messages);

%CHILDREN

%CHILDREN is a hash of all child processes keyed by PID. Children with registered callbacks will contain a reference to their callback in this hash.

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SEE ALSO

the Proc::Deamon manpage, the Proc::Fork manpage, the Proc::Application::Daemon manpage, the Proc::Forking manpage, the Proc::Background manpage, the Net::Daemon manpage, the POE::Component::Daemon manpage, http://www.modperl.com/perl_networking/, perlfork

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VERSION

$Id: DaemonLite.pm 946 2007-02-11 15:14:13Z nicolaw $

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AUTHOR

Nicola Worthington <nicolaw@cpan.org>

http://perlgirl.org.uk

If you like this software, why not show your appreciation by sending the author something nice from her Amazon wishlist? ( http://www.amazon.co.uk/gp/registry/1VZXC59ESWYK0?sort=priority )

Original code written by Lincoln D. Stein, featured in "Network Programming with Perl". http://www.modperl.com/perl_networking/

Released with permission of Lincoln D. Stein.

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COPYRIGHT

Copyright 2006,2007 Nicola Worthington.

This software is licensed under The Apache Software License, Version 2.0.

http://www.apache.org/licenses/LICENSE-2.0

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 Proc::DaemonLite - Simple server daemonisation module