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
|
# -*- cperl -*-
# -----------------------------------------------------------------------------
# Tools::FileCache, Data shared file cache service.
# -----------------------------------------------------------------------------
# $Id: FileCache.pm 11365 2008-05-10 14:58:28Z topia $
# -----------------------------------------------------------------------------
# copyright (C) 2003 Topia <topia@clovery.jp>. all rights reserved.
package Tools::FileCache;
use strict;
use warnings;
use RunLoop;
use Carp;
use Tiarra::SharedMixin;
use Module::Use qw(Tools::FileCache::EachFile);
use Tools::FileCache::EachFile;
our $_shared_instance;
sub _new {
my $class = shift;
my ($this) = {
files => {},
timer => undef,
};
bless $this, $class;
return $this;
}
sub find_file {
my ($class_or_this, $fpath, $mode, $charset) = @_;
my $this = $class_or_this->_this;
my $file = $this->{files}->{$fpath};
if (defined($file)) {
# とりあえずファイルは存在した。
my $obj = $file->{$mode};
if (defined($obj)) {
# そのモードも存在した。オブジェクトを返す。
return $obj;
} else {
# そのモードは存在しなかった。登録して返す。
return $this->_register_inner($fpath, $mode, $charset);
}
} else {
# ファイルは存在しない。登録して返す。
return $this->_register_inner($fpath, $mode, $charset);
}
}
sub register {
my ($class_or_this, $fpath, $mode, $charset) = @_;
my $this = $class_or_this->_this;
my $file = $this->find_file($fpath, $mode, $charset);
if (defined $file) {
# ファイルがあった or ファイルを登録した。
# 参照回数を増やして返す。
$file->register();
return $file;
} else {
# ファイルの登録が出来なかった。
return undef;
}
}
sub unregister {
my ($class_or_this, $fpath) = @_;
my $this = $class_or_this->_this;
my $file = $this->{files}->{$fpath};
if (defined($file)) {
$file->unregister();
return 0;
} else {
croak('file "' . $fpath . '" has not registered yet!');
}
}
sub _register_inner {
my ($class_or_this, $fpath, $mode, $charset) = @_;
my $this = $class_or_this->_this;
my $obj = Tools::FileCache::EachFile->new($this, $fpath, $mode, $charset);
if (defined $obj) {
$this->{files}->{$fpath} = {} unless (defined($this->{files}->{$fpath}));
$this->{files}->{$fpath}->{$mode} = $obj;
$this->_install_timer();
return $obj;
} else {
return undef;
}
}
sub main_loop {
my $this = shift;
# check expire
foreach my $key (keys(%{$this->{files}})) {
my $file = $this->{files}->{$key};
foreach my $mode (keys(%$file)) {
my $obj = $file->{$mode};
if ($obj->can_remove() && ($obj->expire() < time())) {
# expired.
$obj->clean();
delete $this->{files}->{$key}->{$mode};
}
}
if (scalar(keys(%$file)) == 0) {
delete $this->{files}->{$key};
}
}
# check struct-size
if (scalar(keys(%{$this->{files}})) == 0) {
$this->_uninstall_timer();
}
}
sub destruct {
my $this = shared;
# expire all
foreach my $key (keys(%{$this->{files}})) {
my $file = $this->{files}->{$key};
foreach my $mode (keys(%$file)) {
my $obj = $file->{$mode};
$obj->clean();
delete $this->{files}->{$key}->{$mode};
}
delete $this->{files}->{$key};
}
# re-run main_loop (for uninstall timer)
$this->main_loop();
}
# misc/timer
sub _check_timer {
my $this = shift;
return defined($this->{timer});
}
sub _install_timer {
my $this = shift;
unless ($this->_check_timer) {
$this->{timer} = Timer->new(
Interval => 30,
Repeat => 1,
Code => sub {
my $timer = shift;
$this->main_loop();
},
)->install();
}
return 0;
}
sub _uninstall_timer {
my $this = shift;
if ($this->_check_timer()) {
$this->{timer}->uninstall;
$this->{timer} = undef;
}
return 0;
}
1;
|
