/usr/share/perl5/Cache/SizeAwareFileCache.pm is in libcache-cache-perl 1.06-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 | ######################################################################
# $Id: SizeAwareFileCache.pm,v 1.28 2002/04/07 17:04:46 dclinton Exp $
# Copyright (C) 2001-2003 DeWitt Clinton All Rights Reserved
#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either expressed or
# implied. See the License for the specific language governing
# rights and limitations under the License.
######################################################################
package Cache::SizeAwareFileCache;
use strict;
use vars qw( @ISA );
use Cache::CacheSizer;
use Cache::CacheUtils qw( Static_Params );
use Cache::FileCache;
use Cache::SizeAwareCache qw( $NO_MAX_SIZE );
@ISA = qw ( Cache::FileCache Cache::SizeAwareCache );
my $DEFAULT_MAX_SIZE = $NO_MAX_SIZE;
sub Clear
{
my ( $p_optional_cache_root ) = Static_Params( @_ );
Cache::FileCache::Clear( $p_optional_cache_root );
}
sub Purge
{
my ( $p_optional_cache_root ) = Static_Params( @_ );
Cache::FileCache::Purge( $p_optional_cache_root );
}
sub Size
{
my ( $p_optional_cache_root ) = Static_Params( @_ );
return Cache::FileCache::Size( $p_optional_cache_root );
}
sub new
{
my ( $self ) = _new( @_ );
$self->_complete_initialization( );
return $self;
}
sub get
{
my ( $self, $p_key ) = @_;
$self->_get_cache_sizer( )->update_access_time( $p_key );
return $self->SUPER::get( $p_key );
}
sub limit_size
{
my ( $self, $p_new_size ) = @_;
$self->_get_cache_sizer( )->limit_size( $p_new_size );
}
sub set
{
my ( $self, $p_key, $p_data, $p_expires_in ) = @_;
$self->SUPER::set( $p_key, $p_data, $p_expires_in );
$self->_get_cache_sizer( )->limit_size( $self->get_max_size( ) );
}
sub _new
{
my ( $proto, $p_options_hash_ref ) = @_;
my $class = ref( $proto ) || $proto;
my $self = $class->SUPER::_new( $p_options_hash_ref );
$self->_initialize_cache_sizer( );
return $self;
}
sub _initialize_cache_sizer
{
my ( $self ) = @_;
my $max_size = $self->_read_option( 'max_size', $DEFAULT_MAX_SIZE );
$self->_set_cache_sizer( new Cache::CacheSizer( $self, $max_size ) );
}
sub get_max_size
{
my ( $self ) = @_;
return $self->_get_cache_sizer( )->get_max_size( );
}
sub set_max_size
{
my ( $self, $p_max_size ) = @_;
$self->_get_cache_sizer( )->set_max_size( $p_max_size );
}
sub _get_cache_sizer
{
my ( $self ) = @_;
return $self->{_Cache_Sizer};
}
sub _set_cache_sizer
{
my ( $self, $p_cache_sizer ) = @_;
$self->{_Cache_Sizer} = $p_cache_sizer;
}
1;
__END__
=pod
=head1 NAME
Cache::SizeAwareFileCache -- extends Cache::FileCache
=head1 DESCRIPTION
The SizeAwareFileCache class adds the ability to dynamically limit the
size (in bytes) of a file system based cache. This class also
implements the SizeAwareCache interface, providing the 'max_size'
option and the 'limit_size( $size )' method.
=head1 SYNOPSIS
use Cache::SizeAwareFileCache;
my $cache =
new Cache::SizeAwareFileCache( { 'namespace' => 'MyNamespace',
'default_expires_in' => 600,
'max_size' => 10000 } );
=head1 METHODS
See Cache::Cache and Cache::SizeAwareCache for the API documentation.
=head1 OPTIONS
See Cache::Cache and Cache::SizeAwareCache for the standard options.
=head1 PROPERTIES
See Cache::Cache and Cache::SizeAwareCache for the default properties.
=head1 SEE ALSO
Cache::Cache, Cache::SizeAwareCache, Cache::FileCache
=head1 AUTHOR
Original author: DeWitt Clinton <dewitt@unto.net>
Also: Portions of this code are a rewrite of David Coppit's excellent
extentions to the original File::Cache
Last author: $Author: dclinton $
Copyright (C) 2001-2003 DeWitt Clinton
=cut
|