112 lines
2.0 KiB
Perl
112 lines
2.0 KiB
Perl
package IO::Uncompress::Adapter::Bunzip2;
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use strict;
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use warnings;
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use bytes;
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use IO::Compress::Base::Common 2.204 qw(:Status);
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use Compress::Raw::Bzip2 2.204 ;
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our ($VERSION, @ISA);
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$VERSION = '2.204';
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sub mkUncompObject
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{
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my $small = shift || 0;
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my $verbosity = shift || 0;
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my ($inflate, $status) = Compress::Raw::Bunzip2->new(1, 1, $small, $verbosity, 1);
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return (undef, "Could not create Inflation object: $status", $status)
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if $status != BZ_OK ;
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return bless {'Inf' => $inflate,
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'CompSize' => 0,
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'UnCompSize' => 0,
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'Error' => '',
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'ConsumesInput' => 1,
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} ;
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}
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sub uncompr
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{
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my $self = shift ;
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my $from = shift ;
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my $to = shift ;
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my $eof = shift ;
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my $inf = $self->{Inf};
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my $status = $inf->bzinflate($from, $to);
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$self->{ErrorNo} = $status;
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if ($status != BZ_OK && $status != BZ_STREAM_END )
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{
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$self->{Error} = "Inflation Error: $status";
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return STATUS_ERROR;
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}
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return STATUS_OK if $status == BZ_OK ;
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return STATUS_ENDSTREAM if $status == BZ_STREAM_END ;
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return STATUS_ERROR ;
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}
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sub reset
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{
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my $self = shift ;
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my ($inf, $status) = Compress::Raw::Bunzip2->new();
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$self->{ErrorNo} = ($status == BZ_OK) ? 0 : $status ;
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if ($status != BZ_OK)
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{
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$self->{Error} = "Cannot create Inflate object: $status";
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return STATUS_ERROR;
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}
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$self->{Inf} = $inf;
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return STATUS_OK ;
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}
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sub compressedBytes
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{
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my $self = shift ;
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$self->{Inf}->compressedBytes();
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}
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sub uncompressedBytes
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{
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my $self = shift ;
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$self->{Inf}->uncompressedBytes();
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}
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sub crc32
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{
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my $self = shift ;
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#$self->{Inf}->crc32();
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}
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sub adler32
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{
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my $self = shift ;
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#$self->{Inf}->adler32();
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}
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sub sync
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{
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my $self = shift ;
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#( $self->{Inf}->inflateSync(@_) == BZ_OK)
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# ? STATUS_OK
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# : STATUS_ERROR ;
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}
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1;
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__END__
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