blob: 27de6e0f36bdb1c0e1ac0641fcc567f75ad38804 (
plain)
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
|
package IO::Uncompress::Adapter::Identity;
use warnings;
use strict;
use bytes;
use IO::Compress::Base::Common 2.024 qw(:Status);
our ($VERSION);
$VERSION = '2.024';
use Compress::Raw::Zlib 2.024 ();
sub mkUncompObject
{
my $crc32 = 1; #shift ;
my $adler32 = shift;
bless { 'CompSize' => 0,
'UnCompSize' => 0,
'wantCRC32' => $crc32,
'CRC32' => Compress::Raw::Zlib::crc32(''),
'wantADLER32'=> $adler32,
'ADLER32' => Compress::Raw::Zlib::adler32(''),
'ConsumesInput' => 1,
} ;
}
sub uncompr
{
my $self = shift;
my $eof = $_[2];
if (defined ${ $_[0] } && length ${ $_[0] }) {
$self->{CompSize} += length ${ $_[0] } ;
$self->{UnCompSize} = $self->{CompSize} ;
$self->{CRC32} = Compress::Raw::Zlib::crc32($_[0], $self->{CRC32})
if $self->{wantCRC32};
$self->{ADLER32} = Compress::Zlib::adler32($_[0], $self->{ADLER32})
if $self->{wantADLER32};
${ $_[1] } .= ${ $_[0] };
${ $_[0] } = "";
}
return STATUS_ENDSTREAM if $eof;
return STATUS_OK ;
}
sub reset
{
my $self = shift;
$self->{CompSize} = 0;
$self->{UnCompSize} = 0;
$self->{CRC32} = Compress::Raw::Zlib::crc32('');
$self->{ADLER32} = Compress::Raw::Zlib::adler32('');
return STATUS_OK ;
}
#sub count
#{
# my $self = shift ;
# return $self->{UnCompSize} ;
#}
sub compressedBytes
{
my $self = shift ;
return $self->{UnCompSize} ;
}
sub uncompressedBytes
{
my $self = shift ;
return $self->{UnCompSize} ;
}
sub sync
{
return STATUS_OK ;
}
sub crc32
{
my $self = shift ;
return $self->{CRC32};
}
sub adler32
{
my $self = shift ;
return $self->{ADLER32};
}
1;
__END__
|
