This file is indexed.

/usr/share/perl5/Cache/Simple/TimedExpiry.pm is in libcache-simple-timedexpiry-perl 0.27-2.

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
package Cache::Simple::TimedExpiry;
use warnings;
use strict;

use vars qw/$VERSION/;

$VERSION = '0.27';

=head1 NAME

Cache::Simple::TimedExpiry - simple, time-expiring cache

=head2 EXAMPLE 

 package main; 

 use strict; 
 use warnings;
 $,=' '; $|++;

 use Cache::Simple::TimedExpiry;
 my $h =  Cache::Simple::TimedExpiry->new;

 $h->set( DieQuick => "No duration!", 0); 
 print $h->elements;
 do { $h->set($_,"Value of $_", 1); sleep 2;} 
    for qw(Have a nice day you little monkey); 


 print $h->elements; $h->dump; sleep 4; print $h->elements; $h->dump;

 print time;


=cut


# 0 - expiration delay
# 1 - hash
# 2 - expiration queue
# 3 - last expiration

=head2 new

Set up a new cache object

=cut


sub new {
  bless [2,{},[],0], "Cache::Simple::TimedExpiry";
}


=head2 expire_after SECONDS

Set the cache's expiry policy to expire entries after SECONDS seconds. Setting this changes the expiry policy for pre-existing cache entries and for new ones.


=cut

sub expire_after {
    my $self = shift;
    $self->[0] = shift if (@_);
    return ($self->[0]);

}


=head2 has_key KEY

Return true if the cache has an entry with the key KEY

=cut

sub has_key ($$) { # exists
  my ($self, $key) = @_;
  
  my $time = time;
  $self->expire($time) if ($time > $self->[3]);
  return 1 if defined $key && exists $self->[1]->{$key};
  return 0;
}

=head2 fetch KEY

Return the cache entry with key KEY.
Returns undef if there is no such entry

(Can also be called as L<get>)

=cut

*get = \&fetch;

sub fetch ($$) {
  my ($self,$key) = @_;

  # Only expire 
    unless ( $self->has_key($key)) {
          return undef;
     }

  return $self->[1]->{$key};

}

=head2 store KEY VALUE

Store VALUE in the cache with accessor KEY.  Expire it from the cache 
at or after EXPIRYTIME.

(Can also be called as L<set>)

=cut

*set = \&store;

sub store ($$$) {
  my ($self,$key,$value) = @_;
  my $time = time;
  # Only expire 
  $self->expire($time) if ($time > $self->[3]);

  return undef unless defined ($key);
  $self->[1]->{$key} = $value;

    push @{$self->[2]}, [ time, $key ];
}

sub expire ($$) {
  my $self = shift;
  my $time = shift;
    
  $self->[3] = $time;

  my $oldest_nonexpired_entry = ($time - $self->[0]);
 

  return unless defined $self->[2]->[0]; # do we have an element in the array?


  return unless $self->[2]->[0]->[0] < $oldest_nonexpired_entry; # is it expired?

  while ( @{$self->[2]} && $self->[2]->[0]->[0] <$oldest_nonexpired_entry ) {
    my $key =  $self->[2]->[0]->[1];
    delete $self->[1]->{ $key };
    shift @{$self->[2]};
  }

}

sub elements ($) { # keys
  my $self = shift;
  my $time = time;
  # Only expire 
  $self->expire($time) if ($time > $self->[3]);

  return keys %{$self->[1]};

}

sub dump ($) {
  require Data::Dumper;
  print Data::Dumper::Dumper($_[0]);
}



=head1 AUTHOR

Jesse Vincent <jesse@bestpractical.com>
Some of the heavy lifting was designed by Robert Spier <rspier@pobox.com>

Copyright 2004 Jesse Vincent <jesse@bestpractical.com>

=cut

1;