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# -*- perl -*-
#
# Net::Server::Proto::TCP - Net::Server Protocol module
#
# $Id: TCP.pm,v 1.9 2002/06/20 19:53:56 rhandom Exp $
#
# Copyright (C) 2001, Paul T Seamons
# paul@seamons.com
# http://seamons.com/
#
# This package may be distributed under the terms of either the
# GNU General Public License
# or the
# Perl Artistic License
#
# All rights reserved.
#
################################################################
package Net::Server::Proto::TCP;
use strict;
use vars qw($VERSION $AUTOLOAD @ISA);
use IO::Socket ();
$VERSION = $Net::Server::VERSION; # done until separated
@ISA = qw(IO::Socket::INET);
sub object {
my $type = shift;
my $class = ref($type) || $type || __PACKAGE__;
my ($default_host,$port,$server) = @_;
my $host;
### allow for things like "domain.com:80"
if( $port =~ m/^([\w\.\-\*\/]+):(\w+)$/ ){
($host,$port) = ($1,$2);
### allow for things like "80"
}elsif( $port =~ /^(\w+)$/ ){
($host,$port) = ($default_host,$1);
### don't know that style of port
}else{
$server->fatal("Undeterminate port \"$port\" under ".__PACKAGE__);
}
### create the handle under this package
my $sock = $class->SUPER::new();
### store some properties
$sock->NS_host($host);
$sock->NS_port($port);
$sock->NS_proto('TCP');
return $sock;
}
sub log_connect {
my $sock = shift;
my $server = shift;
my $host = $sock->NS_host;
my $port = $sock->NS_port;
my $proto = $sock->NS_proto;
$server->log(2,"Binding to $proto port $port on host $host\n");
}
### connect the first time
sub connect {
my $sock = shift;
my $server = shift;
my $prop = $server->{server};
my $host = $sock->NS_host;
my $port = $sock->NS_port;
my %args = ();
$args{LocalPort} = $port; # what port to bind on
$args{Proto} = 'tcp'; # what procol to use
$args{LocalAddr} = $host if $host !~ /\*/; # what local address (* is all)
$args{Listen} = $prop->{listen}; # how many connections for kernel to queue
$args{Reuse} = 1; # allow us to rebind the port on a restart
### connect to the sock
$sock->SUPER::configure(\%args)
or $server->fatal("Can't connect to TCP port $port on $host [$!]");
$server->fatal("Back sock [$!]!".caller())
unless $sock;
}
### connect on a sig -HUP
sub reconnect {
my $sock = shift;
my $fd = shift;
my $server = shift;
$sock->fdopen( $fd, 'w' )
or $server->fatal("Error opening to file descriptor ($fd) [$!]");
}
### allow for endowing the child
sub accept {
my $sock = shift;
my $client = $sock->SUPER::accept();
### pass items on
if( defined($client) ){
$client->NS_proto( $sock->NS_proto );
}
return $client;
}
### a string containing any information necessary for restarting the server
### via a -HUP signal
### a newline is not allowed
### the hup_string must be a unique identifier based on configuration info
sub hup_string {
my $sock = shift;
return join("|",
$sock->NS_host,
$sock->NS_port,
$sock->NS_proto,
);
}
### short routine to show what we think we are
sub show {
my $sock = shift;
my $t = "Ref = \"" .ref($sock) . "\"\n";
foreach my $prop ( qw(NS_proto NS_port NS_host) ){
$t .= " $prop = \"" .$sock->$prop()."\"\n";
}
return $t;
}
### self installer
sub AUTOLOAD {
my $sock = shift;
my ($prop) = $AUTOLOAD =~ /::([^:]+)$/ ? $1 : '';
if( ! $prop ){
die "No property called.";
}
if( $prop =~ /^(NS_proto|NS_port|NS_host|NS_recv_len|NS_recv_flags)$/ ){
no strict 'refs';
* { __PACKAGE__ ."::". $prop } = sub {
my $sock = shift;
if( @_ ){
${*$sock}{$prop} = shift;
return delete ${*$sock}{$prop} unless defined ${*$sock}{$prop};
}else{
return ${*$sock}{$prop};
}
};
use strict 'refs';
$sock->$prop(@_);
}else{
die "What method is that? [$prop]";
}
}
1;
__END__
=head1 NAME
Net::Server::Proto::TCP - adp0 - Net::Server TCP protocol.
=head1 SYNOPSIS
See L<Net::Server::Proto>.
=head1 DESCRIPTION
Protocol module for Net::Server. This module implements the
SOCK_STREAM socket type under INET (also known as TCP).
See L<Net::Server::Proto>.
=head1 PARAMETERS
There are no additional parameters that can be specified.
See L<Net::Server> for more information on reading arguments.
=head1 LICENCE
Distributed under the same terms as Net::Server
=cut
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