1 package Memoize::ExpireFile;
5 Memoize::ExpireFile - test for Memoize expiration semantics
9 See L<Memoize::Expire>.
16 my ($package, %args) = @_;
19 my ($module, @opts) = @{$args{TIE}};
20 my $modulefile = $module . '.pm';
21 $modulefile =~ s{::}{/}g;
22 eval { require $modulefile };
24 croak "Memoize::ExpireFile: Couldn't load hash tie module `$module': $@; aborting";
26 my $rc = (tie %cache => $module, @opts);
28 croak "Memoize::ExpireFile: Couldn't tie hash to `$module': $@; aborting";
31 bless {ARGS => \%args, C => \%cache} => $package;
36 my ($self, $key, $data) = @_;
37 my $cache = $self->{C};
38 my $cur_date = pack("N", (stat($key))[9]);
39 $cache->{"C$key"} = $data;
40 $cache->{"T$key"} = $cur_date;
44 my ($self, $key) = @_;
49 my ($self, $key) = @_;
50 my $old_date = $self->{C}{"T$key"} || "0";
51 my $cur_date = pack("N", (stat($key))[9]);
52 if ($self->{ARGS}{CHECK_DATE} && $old_date gt $cur_date) {
53 return $self->{ARGS}{CHECK_DATE}->($key, $old_date, $cur_date);
55 return $old_date ge $cur_date;