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
|
package IO::Uncompress::Adapter::Bunzip2;
use strict;
use warnings;
use bytes;
use IO::Compress::Base::Common 2.084 qw(:Status);
use Compress::Raw::Bzip2 2.084 ;
our ($VERSION, @ISA);
$VERSION = '2.084';
sub mkUncompObject
{
my $small = shift || 0;
my $verbosity = shift || 0;
my ($inflate, $status) = new Compress::Raw::Bunzip2(1, 1, $small, $verbosity, 1);
return (undef, "Could not create Inflation object: $status", $status)
if $status != BZ_OK ;
return bless {'Inf' => $inflate,
'CompSize' => 0,
'UnCompSize' => 0,
'Error' => '',
'ConsumesInput' => 1,
} ;
}
sub uncompr
{
my $self = shift ;
my $from = shift ;
my $to = shift ;
my $eof = shift ;
my $inf = $self->{Inf};
my $status = $inf->bzinflate($from, $to);
$self->{ErrorNo} = $status;
if ($status != BZ_OK && $status != BZ_STREAM_END )
{
$self->{Error} = "Inflation Error: $status";
return STATUS_ERROR;
}
return STATUS_OK if $status == BZ_OK ;
return STATUS_ENDSTREAM if $status == BZ_STREAM_END ;
return STATUS_ERROR ;
}
sub reset
{
my $self = shift ;
my ($inf, $status) = new Compress::Raw::Bunzip2();
$self->{ErrorNo} = ($status == BZ_OK) ? 0 : $status ;
if ($status != BZ_OK)
{
$self->{Error} = "Cannot create Inflate object: $status";
return STATUS_ERROR;
}
$self->{Inf} = $inf;
return STATUS_OK ;
}
sub compressedBytes
{
my $self = shift ;
$self->{Inf}->compressedBytes();
}
sub uncompressedBytes
{
my $self = shift ;
$self->{Inf}->uncompressedBytes();
}
sub crc32
{
my $self = shift ;
#$self->{Inf}->crc32();
}
sub adler32
{
my $self = shift ;
#$self->{Inf}->adler32();
}
sub sync
{
my $self = shift ;
#( $self->{Inf}->inflateSync(@_) == BZ_OK)
# ? STATUS_OK
# : STATUS_ERROR ;
}
1;
__END__
|
