add Daemon::Control to SEE ALSO

[gitmo/MooseX-Daemonize.git] / lib / MooseX / Daemonize.pm

diff --git a/lib/MooseX/Daemonize.pm b/lib/MooseX/Daemonize.pm
index c7be66a..4d21a26 100644 (file)
--- a/lib/MooseX/Daemonize.pm
+++ b/lib/MooseX/Daemonize.pm
@@ -2,8 +2,9 @@ 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 = "0.10";
+our $VERSION   = '0.13';
 
 with 'MooseX::Daemonize::WithPidFile',
      'MooseX::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 );
 }
@@ -342,6 +352,28 @@ 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
@@ -368,6 +400,23 @@ The file we store our PID in, defaults to C<$pidbase/$progname.pid>
 If true, the process won't background. Useful for debugging. This option can
 be set via Getopt's -f.
 
+=item I<no_double_fork Bool>
+
+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<ignore_zombies Bool>
+
+If true, the process will not clean up zombie processes.
+Normally you don't want this.
+
+=item I<dont_close_all_files Bool>
+
+If true, the objects open filehandles will not be closed when daemonized.
+Normally you don't want this.
+
+
 =item I<is_daemon Bool>
 
 If true, the process is the backgrounded daemon process, if false it is the
@@ -520,7 +569,7 @@ L<http://rt.cpan.org>.
 
 =head1 SEE ALSO
 
-L<Proc::Daemon>, L<Daemon::Generic>
+L<Daemon::Control>, L<Proc::Daemon>, L<Daemon::Generic>
 
 =head1 AUTHORS
 
@@ -537,7 +586,7 @@ Some bug fixes sponsored by Takkle Inc.
 
 =head1 LICENCE AND COPYRIGHT
 
-Copyright (c) 2007-2010, Chris Prather C<< <chris@prather.org> >>. Some rights
+Copyright (c) 2007-2011, Chris Prather C<< <chris@prather.org> >>. Some rights
 reserved.
 
 This module is free software; you can redistribute it and/or