Current File : //usr/share/perl5/X11/Protocol/Connection/FileHandle.pm
#!/usr/bin/perl
package X11::Protocol::Connection::FileHandle;
# Copyright (C) 1997, 2003 Stephen McCamant. All rights reserved. This
# program is free software; you can redistribute and/or modify it
# under the same terms as Perl itself.
use FileHandle;
use Carp;
use strict;
use vars '$VERSION', '@ISA';
use X11::Protocol::Connection;
@ISA = ('X11::Protocol::Connection');
$VERSION = 0.02;
sub give {
my($self) = shift;
my($msg) = @_;
my($fh) = $$self;
$fh->print($msg) or croak $!;
}
sub get {
my($self) = shift;
my($len) = @_;
my($x, $n, $o) = ("", 0, 0);
my($fh) = $$self;
until ($o == $len) {
$n = sysread $fh, $x, $len - $o, $o;
croak $! unless defined $n;
$o += $n;
}
return $x;
}
sub fh {
my($self) = shift;
return $$self;
}
sub flush {
my($self) = shift;
my($fh) = $$self;
}
1;
__END__
=head1 NAME
X11::Protocol::Connection::FileHandle - Perl module base class for FileHandle-based X11 connections
=head1 SYNOPSIS
package X11::Protocol::Connection::WeirdFH;
use X11::Protocol::Connection::FileHandle;
@ISA = ('X11::Protocol::Connection::FileHandle')
=head1 DESCRIPTION
This module defines get(), give() and fh() methods common to
X11::Protocol::Connection types that are based on the FileHandle
package. They expect the object they are called with to be a reference
to a FileHandle.
=head1 AUTHOR
Stephen McCamant <SMCCAM@cpan.org>.
=head1 SEE ALSO
L<perl(1)>,
L<X11::Protocol>,
L<X11::Protocol::Connection::INETFH>,
L<X11::Protocol::Connection::UNIXFH>,
L<FileHandle>.
=cut
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