# $Id: ZOOM.pm,v 1.6 2005/12/21 16:56:59 mike Exp $

package Net::Z3950::ZOOM; 

use 5.008;
use strict;
use warnings;

our $VERSION = '1.01';

require XSLoader;
XSLoader::load('Net::Z3950::ZOOM', $VERSION);


# The only thing this module does is define the following constants,
# which MUST BE KEPT SYNCHRONISED with the definitions in <yaz/zoom.h>

# Error codes, as returned from connection_error()
sub ERROR_NONE { 0 }
sub ERROR_CONNECT { 10000 }
sub ERROR_MEMORY { 10001 }
sub ERROR_ENCODE { 10002 }
sub ERROR_DECODE { 10003 }
sub ERROR_CONNECTION_LOST { 10004 }
sub ERROR_INIT { 10005 }
sub ERROR_INTERNAL { 10006 }
sub ERROR_TIMEOUT { 10007 }
sub ERROR_UNSUPPORTED_PROTOCOL { 10008 }
sub ERROR_UNSUPPORTED_QUERY { 10009 }
sub ERROR_INVALID_QUERY { 10010 }
sub ERROR_CQL_PARSE { 10011 }
sub ERROR_CQL_TRANSFORM { 10012 }

# Event types, as returned from connection_last_event()
sub EVENT_NONE { 0 }
sub EVENT_CONNECT { 1 }
sub EVENT_SEND_DATA { 2 }
sub EVENT_RECV_DATA { 3 }
sub EVENT_TIMEOUT { 4 }
sub EVENT_UNKNOWN { 5 }
sub EVENT_SEND_APDU { 6 }
sub EVENT_RECV_APDU { 7 }
sub EVENT_RECV_RECORD { 8 }
sub EVENT_RECV_SEARCH { 9 }


=head1 NAME

Net::Z3950::ZOOM - Perl extension for invoking the ZOOM-C API.

=head1 SYNOPSIS

 use Net::Z3950::ZOOM;
 $conn = Net::Z3950::ZOOM::connection_new($host, $port);
 $errcode = Net::Z3950::ZOOM::connection_error($conn, $errmsg, $addinfo);
 Net::Z3950::ZOOM::connection_option_set($conn, databaseName => "foo");
 # etc.

=head1 DESCRIPTION

This module provides a simple thin-layer through to the ZOOM-C
functions in the YAZ toolkit for Z39.50 and SRW/U communication.  You
should not be using this very nasty, low-level API.  You should be
using the C<ZOOM> module instead, which implements a nice, Perlish API
on top of this module, conformant to the ZOOM Abstract API described at
http://zoom.z3950.org/api/

To enforce the don't-use-this-module prohibition, I am not even going
to document it.  If you really, really, really want to use it, then it
pretty much follows the API described in the ZOOM-C documentation at
http://www.indexdata.dk/yaz/doc/zoom.tkl

=head1 SEE ALSO

The C<ZOOM> module, included in the same distribution as this one.

=head1 AUTHOR

Mike Taylor, E<lt>mike@indexdata.comE<gt>

=head1 COPYRIGHT AND LICENCE

Copyright (C) 2005 by Index Data.

This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.8.4 or,
at your option, any later version of Perl 5 you may have available.

=cut

1;