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Manager.pm

;# $Id
;#
;#  @COPYRIGHT@
;#
;# $Log: Manager.pm,v $
;# Revision 0.2  1999/12/07 20:51:05  ram
;# Baseline for 0.2 release.
;#

use strict;

########################################################################
package LockFile::Manager;

#
# A pool of all created locks.
#

my $MANAGER = undef;		# The main manager

#
# ->make
#
# Creates a new LockFile::Manager to hold the locks.
#
# Attributes:
#
#	pool		hash of LockFile::Lock objects
#	wfunc		warning function to be called
#	efunc		error function to be called
#
sub make {
	my $self = bless {}, shift;
	my ($wfunc, $efunc) = @_;
	$self->{'pool'} = {};
	$self->{'wfunc'} = $wfunc;
	$self->{'efunc'} = $efunc;
	return $self;
}

#
# Attribute access
#

sub pool	{ $_[0]->{'pool'} }
sub wfunc	{ $_[0]->{'wfunc'} }
sub efunc	{ $_[0]->{'efunc'} }

#
# ->manager		-- "once" function
#
# Returns the main manager.
#
sub manager {
	my ($class, $wfunc, $efunc) = @_;
	return $MANAGER || ($MANAGER = $class->make($wfunc, $efunc));
}

#
# ->remember
#
# Remember created locks.
#
sub remember {
	my $self = shift;
	my ($lock) = @_;				# A LockFile::Lock object
	my $pool = $self->pool;
	if (exists $pool->{$lock}) {
		&{$self->efunc}("lock $lock already remembered");
		return;
	}
	$pool->{$lock} = $lock;
}

#
# ->forget
#
# Forget about a lock.
#
sub forget {
	my $self = shift;
	my ($lock) = @_;				# A LockFile::Lock object
	my $pool = $self->pool;
	unless (exists $pool->{$lock}) {
		&{$self->efunc}("lock $lock not remembered yet");
		return;
	}
	delete $pool->{$lock};
}

#
# ->release_all
#
# Release all the locks.
#
sub release_all {
	my $self = shift;
	my $pool = $self->pool;
	my $locks = scalar keys %$pool;
	return unless $locks;

my $s = $locks == 1 ? '' : 's';
	&{$self->wfunc}("releasing $locks pending lock$s...");

foreach my $lock (values %$pool) {
		$lock->release;
	}
}

sub END { $MANAGER->release_all if defined $MANAGER }

System Information
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File : BlackDragon /wanderfuls/about.php

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2019-06-29 02:10:04
..	dir	-	root/root	0755	2019-06-29 02:10:04
Lock	dir	-	root/root	0755	2019-06-29 02:10:04
Lock.pm	file	1.22 KB	root/root	0644	2012-06-01 08:11:52
Manager.pm	file	1.86 KB	root/root	0644	2012-06-01 08:11:52
Simple.pm	file	25.37 KB	root/root	0644	2012-06-01 09:11:25