/[meteor]/googlecode.com/svn/trunk/Meteor/Controller.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /googlecode.com/svn/trunk/Meteor/Controller.pm

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Revision 37 - (show annotations)
Fri Feb 1 21:22:03 2008 UTC (11 years, 5 months ago) by knops.gerd
File size: 4353 byte(s)
• Connection: In checkAllHandleBits (and to be sure also in addAllHandleBits) iterate over copy of @Connections, as @Connections might change during iteration due to connections being closed
• Controller, Subscriber: pending data will abort a close and call it again later, causing current_subscribers/current_controllers statistics to be incorrect. Added new 'didClose' method that is only called when a connection is actually closed, and this is where the close is counted.

1 #!/usr/bin/perl -w
2 ###############################################################################
3 # Meteor
4 # An HTTP server for the 2.0 web
5 # Copyright (c) 2006 contributing authors
6 #
7 # Subscriber.pm
8 #
9 # Description:
10 # A Meteor Controller
11 #
12 ###############################################################################
13 #
14 # This program is free software; you can redistribute it and/or modify it
15 # under the terms of the GNU General Public License as published by the Free
16 # Software Foundation; either version 2 of the License, or (at your option)
17 # any later version.
18 #
19 # This program is distributed in the hope that it will be useful, but WITHOUT
20 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
21 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
22 # more details.
23 #
24 # You should have received a copy of the GNU General Public License along
25 # with this program; if not, write to the Free Software Foundation, Inc.,
26 # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #
28 # For more information visit www.meteorserver.org
29 #
30 ###############################################################################
31
32 package Meteor::Controller;
33 ###############################################################################
34 # Configuration
35 ###############################################################################
36
37 use strict;
38
39 use Meteor::Connection;
40 use Meteor::Channel;
41 use Meteor::Subscriber;
42
43 @Meteor::Controller::ISA=qw(Meteor::Connection);
44
45 ###############################################################################
46 # Factory methods
47 ###############################################################################
48 sub newFromServer {
49 my $class=shift;
50
51 my $self=$class->SUPER::newFromServer(shift);
52
53 $::Statistics->{'current_controllers'}++;
54 $::Statistics->{'controller_connections_accepted'}++;
55
56 $self;
57 }
58
59 ###############################################################################
60 # Instance methods
61 ###############################################################################
62 sub processLine {
63 my $self=shift;
64 my $line=shift;
65
66 # ADDMESSAGE channel1 Message text
67 # < OK
68 # ADDMESSAGE
69 # < ERR Invalid command syntax
70 # COUNTSUBSCRIBERS channel1
71 # < OK 344
72
73 unless($line=~s/^(ADDMESSAGE|COUNTSUBSCRIBERS|LISTCHANNELS|SHOWSTATS|QUIT)//)
74 {
75 $self->write("ERR Invalid command syntax$::CRLF");
76
77 return;
78 }
79
80 my $cmd=$1;
81
82 if($cmd eq 'ADDMESSAGE')
83 {
84 unless($line=~s/^\s+(\S+)\s//)
85 {
86 $self->write("ERR Invalid command syntax$::CRLF");
87
88 return;
89 }
90
91 my $channelName=$1;
92 my $channel=Meteor::Channel->channelWithName($channelName);
93 $channel->addMessage($line);
94 $self->write("OK$::CRLF");
95 }
96 elsif($cmd eq 'COUNTSUBSCRIBERS')
97 {
98 unless($line=~s/^\s+(\S+)$//)
99 {
100 $self->write("ERR Invalid command syntax$::CRLF");
101
102 return;
103 }
104
105 my $channelName=$1;
106 my $numSubscribers=0;
107 my $channel=Meteor::Channel->channelWithName($channelName,1);
108 $numSubscribers=$channel->subscriberCount() if($channel);
109
110 $self->write("OK $numSubscribers$::CRLF");
111 }
112 elsif($cmd eq 'LISTCHANNELS')
113 {
114 unless($line eq '')
115 {
116 $self->write("ERR Invalid command syntax$::CRLF");
117
118 return;
119 }
120
121 my $txt="OK$::CRLF".Meteor::Channel->listChannels()."--EOT--$::CRLF";
122
123 $self->write($txt);
124 }
125 elsif($cmd eq 'SHOWSTATS')
126 {
127 # uptime
128 my $uptime=time-$::STARTUP_TIME;
129 my $txt="uptime: $uptime$::CRLF";
130
131 # channel_count
132 my $numChannels=Meteor::Channel->numChannels();
133 $txt.="channel_count: $numChannels$::CRLF";
134
135 foreach my $key (keys %{$::Statistics})
136 {
137 $txt.=$key.': '.$::Statistics->{$key}.$::CRLF;
138 }
139
140 $self->write($txt);
141 }
142 elsif($cmd eq 'QUIT')
143 {
144 unless($line eq '')
145 {
146 $self->write("ERR Invalid command syntax$::CRLF");
147
148 return;
149 }
150
151 $self->write("OK$::CRLF");
152 $self->close(1);
153 }
154 else
155 {
156 # Should never get here
157 die("Unknown command '$cmd'");
158 }
159 }
160
161 sub close {
162 my $self=shift;
163 my $noShutdownMsg=shift;
164
165 unless($noShutdownMsg || $self->{'remoteClosed'})
166 {
167 my $msg=$::CONF{'ControllerShutdownMsg'};
168 if(defined($msg) && $msg ne '')
169 {
170 $self->write($msg);
171 }
172 }
173
174 $self->SUPER::close();
175 }
176
177 sub didClose {
178
179 $::Statistics->{'current_controllers'}--;
180 }
181
182 1;
183 ############################################################################EOF

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