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| Current File : //usr/share/perl5/Archive/Zip/MockFileHandle.pm |
package Archive::Zip::MockFileHandle;
# Output file handle that calls a custom write routine
# Ned Konz, March 2000
# This is provided to help with writing zip files
# when you have to process them a chunk at a time.
use strict;
use vars qw{$VERSION};
BEGIN {
$VERSION = '1.60';
$VERSION = eval $VERSION;
}
sub new {
my $class = shift || __PACKAGE__;
$class = ref($class) || $class;
my $self = bless(
{
'position' => 0,
'size' => 0
},
$class
);
return $self;
}
sub eof {
my $self = shift;
return $self->{'position'} >= $self->{'size'};
}
# Copy given buffer to me
sub print {
my $self = shift;
my $bytes = join('', @_);
my $bytesWritten = $self->writeHook($bytes);
if ($self->{'position'} + $bytesWritten > $self->{'size'}) {
$self->{'size'} = $self->{'position'} + $bytesWritten;
}
$self->{'position'} += $bytesWritten;
return $bytesWritten;
}
# Called on each write.
# Override in subclasses.
# Return number of bytes written (0 on error).
sub writeHook {
my $self = shift;
my $bytes = shift;
return length($bytes);
}
sub binmode { 1 }
sub close { 1 }
sub clearerr { 1 }
# I'm write-only!
sub read { 0 }
sub tell { return shift->{'position'} }
sub opened { 1 }
1;
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