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package IO::Uncompress::Adapter::Bunzip2;
use strict;
use warnings;
use bytes;
use IO::Compress::Base::Common 2.060 qw(:Status);
use Compress::Raw::Bzip2 2.060 ;
our ($VERSION, @ISA);
$VERSION = '2.060';
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__