version 1.10, 2005/05/20 19:37:28 |
version 1.14, 2010/03/10 21:00:36 |
|
|
# $Id$ |
# $RedRiver: Cached.pm,v 1.13 2009/12/16 20:11:13 andrew Exp $ |
use strict; |
use strict; |
|
|
package BT::MetaInfo::Cached; |
package BT::MetaInfo::Cached; |
|
|
require 5.6.0; |
require 5.0060; |
use vars qw( $VERSION @ISA ); |
use vars qw( $VERSION @ISA ); |
|
|
use Cache::FileCache; |
use Cache::FileCache; |
use File::Basename; |
use File::Basename; |
|
use Digest::MD5; |
|
|
use BT::MetaInfo; |
use BT::MetaInfo; |
use base 'BT::MetaInfo'; |
use base 'BT::MetaInfo'; |
|
|
|
use Convert::Bencode_XS; |
|
*{bencode} = \&Convert::Bencode_XS::bencode; |
|
*{bdecode} = \&Convert::Bencode_XS::bdecode; |
|
|
$VERSION = do { my @r = (q$Id$ =~ /\d+/g); sprintf "%d."."%02d" x $#r, @r }; |
$VERSION = do { my @r = (q$Id$ =~ /\d+/g); sprintf "%d."."%02d" x $#r, @r }; |
|
|
sub new |
sub new |
|
|
|
|
my $info = $cache->get( $basename ); |
my $info = $cache->get( $basename ); |
|
|
|
my $md5; |
|
if (defined $info && $info->{'md5'}) { |
|
my $old_md5 = delete $info->{'md5'}; |
|
my $cur_md5 = _MD5_file($file); |
|
if ($old_md5 ne $cur_md5) { |
|
$cache->remove( $basename ); |
|
$info = undef; |
|
} |
|
$md5 = $cur_md5; |
|
} |
|
|
unless (defined $info) { |
unless (defined $info) { |
$info = BT::MetaInfo::_load($file); |
$info = BT::MetaInfo::_load($file); |
|
$info->{'md5'} = $md5; |
$cache->set( $basename, $info ); |
$cache->set( $basename, $info ); |
|
delete $info->{'md5'}; |
} |
} |
|
|
return $info; |
return $info; |
} |
} |
|
|
|
|
my $file = shift; |
my $file = shift; |
my $basename = basename($file); |
my $basename = basename($file); |
|
|
my $cache = delete $self->{cache}; |
my $cache = delete $self->{'cache'}; |
|
|
if ( $self->SUPER::save($file, @_) ) { |
if ( $self->SUPER::save($file, @_) ) { |
my %info_hash = %$self; # unbless |
my %info_hash = %$self; # unbless |
|
|
|
$info_hash{'md5'} = _MD5_file($file); |
$cache->set($basename, \%info_hash) |
$cache->set($basename, \%info_hash) |
} |
} |
|
|
$self->{cache} = $cache; |
$self->{'cache'} = $cache; |
|
|
|
return 1; |
|
} |
|
|
|
sub _MD5_file |
|
{ |
|
my $file = shift; |
|
|
|
my $ctx = Digest::MD5->new; |
|
open my $fh, $file or die "Couldn't open FILE '$file': $!"; |
|
binmode $fh; |
|
$ctx->addfile($fh); |
|
close $fh; |
|
|
|
return $ctx->hexdigest; |
} |
} |