X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMooseX%2FDaemonize.pm;h=d0c60c612de0035c165ba8186fb8ff9b83cf6c22;hb=105dcffad5ce6cde49886d0f88209f2d54a8a86d;hp=8e87a0d06cb062a109806305a8f42c357e28ccfb;hpb=9c8a33b39421240653ebd0ef14a5b6bf00d4176f;p=gitmo%2FMooseX-Daemonize.git diff --git a/lib/MooseX/Daemonize.pm b/lib/MooseX/Daemonize.pm index 8e87a0d..d0c60c6 100644 --- a/lib/MooseX/Daemonize.pm +++ b/lib/MooseX/Daemonize.pm @@ -2,14 +2,15 @@ package MooseX::Daemonize; use strict; # because Kwalitee is pedantic use Moose::Role; use MooseX::Types::Path::Class; +use File::Path qw(make_path); -our $VERSION = 0.06; +our $VERSION = '0.15'; with 'MooseX::Daemonize::WithPidFile', 'MooseX::Getopt'; - -use constant OK => 0; -use constant ERROR => 1; + +sub OK () { 0 } +sub ERROR () { 1 } has progname => ( metaclass => 'Getopt', @@ -81,6 +82,15 @@ has exit_code => ( sub init_pidfile { my $self = shift; my $file = $self->pidbase . '/' . $self->progname . '.pid'; + + if ( !-d $self->pidbase ) { + make_path( $self->pidbase, { error => \my $err } ); + if (@$err) { + confess sprintf( "Cannot create pidbase directory '%s': %s", + $self->pidbase, @$err ); + } + } + confess "Cannot write to $file" unless (-e $file ? -w $file : -w $self->pidbase); MooseX::Daemonize::Pid::File->new( file => $file ); } @@ -116,15 +126,15 @@ sub start { if ($self->pidfile->is_running) { $self->exit_code($self->OK); - $self->status_message('Daemon is already running with pid (' . $self->pidfile->pid . ')'); + $self->status_message('Daemon is already running with pid (' . $self->pidfile->pid . ')'); return !($self->exit_code); } - - if ($self->foreground) { + + if ($self->foreground) { $self->is_daemon(1); } - else { - eval { $self->daemonize }; + else { + eval { $self->daemonize }; if ($@) { $self->exit_code($self->ERROR); $self->status_message('Start failed : ' . $@); @@ -133,7 +143,7 @@ sub start { } unless ($self->is_daemon) { - $self->exit_code($self->OK); + $self->exit_code($self->OK); $self->status_message('Start succeeded'); return !($self->exit_code); } @@ -155,10 +165,10 @@ sub status { $self->clear_exit_code; if ($self->pidfile->is_running) { - $self->exit_code($self->OK); - $self->status_message('Daemon is running with pid (' . $self->pidfile->pid . ')'); + $self->exit_code($self->OK); + $self->status_message('Daemon is running with pid (' . $self->pidfile->pid . ')'); } - else { + else { $self->exit_code($self->ERROR); $self->status_message('Daemon is not running with pid (' . $self->pidfile->pid . ')'); } @@ -228,7 +238,7 @@ sub stop { # this just returns the OK # exit code for now, but # we should make this overridable - $self->exit_code($self->OK); + $self->exit_code($self->OK); $self->status_message("Not running"); } @@ -304,7 +314,11 @@ MooseX::Daemonize - Role for daemonizing your Moose based application =head1 VERSION -This document describes MooseX::Daemonize version 0.05 +This document describes MooseX::Daemonize version 0.15 + +=head1 WARNING + +The maintainers of this module now recommend using L instead. =head1 SYNOPSIS @@ -342,6 +356,28 @@ Often you want to write a persistant daemon that has a pid file, and responds appropriately to Signals. This module provides a set of basic roles as an infrastructure to do that. +=head1 CAVEATS + +When going into background MooseX::Daemonize closes all open file +handles. This may interfere with you logging because it may also close the log +file handle you want to write to. To prevent this you can either defer opening +the log file until after start. Alternatively, use can use the +'dont_close_all_files' option either from the command line or in your .sh +script. + +Assuming you want to use Log::Log4perl for example you could expand the +MooseX::Daemonize example above like this. + + after start => sub { + my $self = shift; + return unless $self->is_daemon; + Log::Log4perl->init(\$log4perl_config); + my $logger = Log::Log4perl->get_logger(); + $logger->info("Daemon started"); + # your daemon code here ... + }; + + =head1 ATTRIBUTES This list includes attributes brought in from other roles as well @@ -357,17 +393,34 @@ The name of our daemon, defaults to C<$package_name =~ s/::/_/>; =item I -The base for our bid, defaults to C +The base for our PID, defaults to C =item I -The file we store our PID in, defaults to C +The file we store our PID in, defaults to C<$pidbase/$progname.pid> =item I If true, the process won't background. Useful for debugging. This option can be set via Getopt's -f. +=item I + +If true, the process will not perform the typical double-fork, which is extra +added protection from your process accidentally aquiring a controlling terminal. +More information can be found by Googling "double fork daemonize". + +=item I + +If true, the process will not clean up zombie processes. +Normally you don't want this. + +=item I + +If true, the objects open filehandles will not be closed when daemonized. +Normally you don't want this. + + =item I If true, the process is the backgrounded daemon process, if false it is the @@ -520,11 +573,11 @@ L. =head1 SEE ALSO -L, L +L, L, L =head1 AUTHORS -Chris Prather C<< >> +Chris Prather C<< > Stevan Little C<< >> @@ -537,7 +590,7 @@ Some bug fixes sponsored by Takkle Inc. =head1 LICENCE AND COPYRIGHT -Copyright (c) 2007, Chris Prather C<< >>. All rights +Copyright (c) 2007-2011, Chris Prather C<< >>. Some rights reserved. This module is free software; you can redistribute it and/or