| 1 |
knops.gerd |
11 |
#!/usr/bin/perl -w |
| 2 |
|
|
############################################################################### |
| 3 |
|
|
# Meteor |
| 4 |
|
|
# An HTTP server for the 2.0 web |
| 5 |
|
|
# Copyright (c) 2006 contributing authors |
| 6 |
|
|
# |
| 7 |
|
|
# The Meteor daemon |
| 8 |
|
|
# |
| 9 |
|
|
# Main program should call Meteor::Config::setCommandLineParameters(@ARGV),. |
| 10 |
|
|
# Afterwards anybody can access $::CONF{<parameterName>}, where |
| 11 |
|
|
# <parameterName> is any valid parameter (except 'Help') listed in the |
| 12 |
|
|
# @DEFAULTS array below. |
| 13 |
|
|
# |
| 14 |
|
|
############################################################################### |
| 15 |
|
|
# |
| 16 |
|
|
# This program is free software; you can redistribute it and/or modify it |
| 17 |
|
|
# under the terms of the GNU General Public License as published by the Free |
| 18 |
|
|
# Software Foundation; either version 2 of the License, or (at your option) |
| 19 |
|
|
# any later version. |
| 20 |
|
|
# |
| 21 |
|
|
# This program is distributed in the hope that it will be useful, but WITHOUT |
| 22 |
|
|
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 23 |
|
|
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 24 |
|
|
# more details. |
| 25 |
|
|
# |
| 26 |
|
|
# You should have received a copy of the GNU General Public License along |
| 27 |
|
|
# with this program; if not, write to the Free Software Foundation, Inc., |
| 28 |
|
|
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 29 |
|
|
# |
| 30 |
|
|
# For more information visit www.meteorserver.org |
| 31 |
|
|
# |
| 32 |
|
|
############################################################################### |
| 33 |
|
|
|
| 34 |
|
|
|
| 35 |
|
|
############################################################################### |
| 36 |
|
|
# Configuration |
| 37 |
|
|
############################################################################### |
| 38 |
|
|
|
| 39 |
|
|
use strict; |
| 40 |
|
|
|
| 41 |
|
|
use Meteor::Syslog; |
| 42 |
|
|
|
| 43 |
|
|
use Meteor::Socket; |
| 44 |
|
|
use Meteor::Connection; |
| 45 |
|
|
use Meteor::Controller; |
| 46 |
|
|
use Meteor::Subscriber; |
| 47 |
|
|
use Meteor::Channel; |
| 48 |
|
|
use Meteor::Document; |
| 49 |
|
|
use Meteor::Config; |
| 50 |
|
|
|
| 51 |
|
|
$::CRLF="\r\n"; # Line separator to be used throughout all modules |
| 52 |
|
|
|
| 53 |
|
|
our $CONTROL_QUEUE_SIZE=5; |
| 54 |
|
|
our $SUBSCRIBER_QUEUE_SIZE=20; |
| 55 |
|
|
|
| 56 |
|
|
our $MAIN_LOOP_TIMEOUT=60; |
| 57 |
|
|
our $AGE_CHECK_INTERVALL=60; |
| 58 |
|
|
|
| 59 |
|
|
our $MAX_EXIT_DELAY=120; |
| 60 |
|
|
|
| 61 |
|
|
############################################################################### |
| 62 |
|
|
# Main |
| 63 |
|
|
############################################################################### |
| 64 |
|
|
|
| 65 |
|
|
# |
| 66 |
knops.gerd |
25 |
# Record startup time |
| 67 |
|
|
# |
| 68 |
|
|
$::STARTUP_TIME=time; |
| 69 |
|
|
$::STARTUP_TIME+=0; # avoid warning |
| 70 |
|
|
|
| 71 |
|
|
# |
| 72 |
knops.gerd |
11 |
# Program name |
| 73 |
|
|
# |
| 74 |
|
|
$::PGM=$0; |
| 75 |
|
|
$::PGM=~s/^.*\///; |
| 76 |
|
|
|
| 77 |
|
|
# |
| 78 |
|
|
# Handle command line options and config file |
| 79 |
|
|
# |
| 80 |
|
|
Meteor::Config->setCommandLineParameters(@ARGV); |
| 81 |
|
|
|
| 82 |
|
|
# |
| 83 |
|
|
# Do something about warn and die |
| 84 |
|
|
# |
| 85 |
|
|
unless($::CONF{'Debug'}) |
| 86 |
|
|
{ |
| 87 |
|
|
$SIG{'__WARN__'}=\&Meteor::Syslog::myWarn; |
| 88 |
|
|
$SIG{'__DIE__'}=\&Meteor::Syslog::myDie; |
| 89 |
|
|
} |
| 90 |
|
|
|
| 91 |
|
|
&::syslog('info',"$::PGM launched!"); |
| 92 |
|
|
|
| 93 |
|
|
# |
| 94 |
|
|
# Daemonize |
| 95 |
|
|
# |
| 96 |
|
|
{ |
| 97 |
|
|
$0="$::PGM daemon"; |
| 98 |
|
|
|
| 99 |
|
|
unless($::CONF{'Debug'}) |
| 100 |
|
|
{ |
| 101 |
|
|
# close standard file descriptors |
| 102 |
|
|
close(STDIN); |
| 103 |
|
|
close(STDOUT); |
| 104 |
|
|
close(STDERR); |
| 105 |
|
|
chdir("/"); |
| 106 |
|
|
umask(0); |
| 107 |
|
|
# fork and exit parent |
| 108 |
|
|
exit if fork; |
| 109 |
|
|
setpgrp(0, $$) if defined $SIG{TTOU}; |
| 110 |
|
|
$SIG{TTOU}='ignore' if defined $SIG{TTOU}; |
| 111 |
|
|
|
| 112 |
|
|
# Avoid 'stdin reopened for output' warning with newer perls |
| 113 |
|
|
open(NULL,'/dev/null'); |
| 114 |
|
|
<NULL> if(0); |
| 115 |
|
|
|
| 116 |
|
|
open(OUT,">/var/run/$::PGM.pid"); |
| 117 |
|
|
print OUT "$$\n"; |
| 118 |
|
|
close(OUT); |
| 119 |
|
|
} |
| 120 |
|
|
else |
| 121 |
|
|
{ |
| 122 |
|
|
print "$::PGM PID: $$\n"; |
| 123 |
|
|
} |
| 124 |
|
|
} |
| 125 |
|
|
|
| 126 |
|
|
# |
| 127 |
|
|
# Signal handlers |
| 128 |
|
|
# |
| 129 |
|
|
$::HUP=$::TERM=$::USR1=$::USR2=0; |
| 130 |
|
|
$SIG{'HUP'}=sub{$::HUP=1}; |
| 131 |
|
|
$SIG{'TERM'}=sub{$::TERM=1}; |
| 132 |
|
|
$SIG{'USR1'}=sub{$::USR1=1}; |
| 133 |
|
|
$SIG{'USR2'}=sub{$::USR2=1}; |
| 134 |
|
|
|
| 135 |
|
|
# |
| 136 |
|
|
# Run server |
| 137 |
|
|
# |
| 138 |
|
|
my $con_counter=0; |
| 139 |
|
|
my $con; |
| 140 |
|
|
|
| 141 |
|
|
my $controlServer=Meteor::Socket->newServer( |
| 142 |
|
|
$::CONF{'ControllerPort'}, |
| 143 |
|
|
$CONTROL_QUEUE_SIZE, |
| 144 |
|
|
$::CONF{'ControllerIP'} |
| 145 |
|
|
); |
| 146 |
|
|
my $controlServerFN=$controlServer->fileno(); |
| 147 |
|
|
|
| 148 |
|
|
my $subscriberServer=Meteor::Socket->newServer( |
| 149 |
|
|
$::CONF{'SubscriberPort'}, |
| 150 |
|
|
$SUBSCRIBER_QUEUE_SIZE, |
| 151 |
|
|
$::CONF{'SubscriberIP'} |
| 152 |
|
|
); |
| 153 |
|
|
my $subscriberServerFN=$subscriberServer->fileno(); |
| 154 |
|
|
|
| 155 |
|
|
my $serverVector=''; |
| 156 |
|
|
vec($serverVector,$controlServerFN,1)=1; |
| 157 |
|
|
vec($serverVector,$subscriberServerFN,1)=1; |
| 158 |
|
|
|
| 159 |
|
|
my $lastAgeCheck=time; |
| 160 |
|
|
|
| 161 |
|
|
my $nextPing=undef; |
| 162 |
|
|
if(exists($::CONF{'PingInterval'}) && $::CONF{'PingInterval'}>2) |
| 163 |
|
|
{ |
| 164 |
|
|
$nextPing=$::CONF{'PingInterval'}+$lastAgeCheck; |
| 165 |
|
|
} |
| 166 |
|
|
|
| 167 |
|
|
while(!$::TERM) |
| 168 |
|
|
{ |
| 169 |
|
|
eval |
| 170 |
|
|
{ |
| 171 |
|
|
while(!$::TERM) |
| 172 |
|
|
{ |
| 173 |
|
|
my $rVec=$serverVector; |
| 174 |
|
|
my $wVec=''; |
| 175 |
|
|
my $eVec=''; |
| 176 |
|
|
|
| 177 |
|
|
my $rout; |
| 178 |
|
|
my $wout; |
| 179 |
|
|
my $eout; |
| 180 |
|
|
|
| 181 |
|
|
Meteor::Connection->addAllHandleBits(\$rVec,\$wVec,\$eVec); |
| 182 |
|
|
|
| 183 |
|
|
my $timeout=$MAIN_LOOP_TIMEOUT; |
| 184 |
|
|
if(defined($nextPing)) |
| 185 |
|
|
{ |
| 186 |
|
|
$timeout=$nextPing-time; |
| 187 |
|
|
} |
| 188 |
|
|
|
| 189 |
|
|
my $result=0; |
| 190 |
|
|
if($timeout>0) |
| 191 |
|
|
{ |
| 192 |
|
|
$result=&Meteor::Socket::sselect($rout=$rVec,$wout=$wVec,$eout=$eVec,$timeout); |
| 193 |
|
|
} |
| 194 |
|
|
|
| 195 |
|
|
if($result>0) |
| 196 |
|
|
{ |
| 197 |
|
|
if(vec($rout,$controlServerFN,1)) |
| 198 |
|
|
{ |
| 199 |
|
|
Meteor::Controller->newFromServer($controlServer); |
| 200 |
|
|
} |
| 201 |
|
|
if(vec($rout,$subscriberServerFN,1)) |
| 202 |
|
|
{ |
| 203 |
|
|
Meteor::Subscriber->newFromServer($subscriberServer); |
| 204 |
|
|
} |
| 205 |
|
|
|
| 206 |
|
|
Meteor::Connection->checkAllHandleBits($rout,$wout,$eout); |
| 207 |
|
|
} |
| 208 |
|
|
elsif($result<0) |
| 209 |
|
|
{ |
| 210 |
|
|
&::syslog('crit',"Select failed: $!"); |
| 211 |
|
|
sleep(30); |
| 212 |
|
|
} |
| 213 |
|
|
|
| 214 |
|
|
if($::HUP) |
| 215 |
|
|
{ |
| 216 |
|
|
$::HUP=0; |
| 217 |
|
|
|
| 218 |
|
|
&::syslog('info',"Received SIGHUP, re-reading config and clearing document cache!"); |
| 219 |
|
|
|
| 220 |
|
|
Meteor::Config->readConfig(); |
| 221 |
|
|
Meteor::Config->updateConfig(); |
| 222 |
|
|
|
| 223 |
|
|
Meteor::Document->clearDocuments() |
| 224 |
|
|
} |
| 225 |
|
|
|
| 226 |
|
|
if($::USR1) |
| 227 |
|
|
{ |
| 228 |
|
|
$::USR1=0; |
| 229 |
|
|
|
| 230 |
|
|
&::syslog('info',"Received SIGUSR1, clearing channel buffers!"); |
| 231 |
|
|
|
| 232 |
|
|
Meteor::Channel->clearAllBuffers(); |
| 233 |
|
|
} |
| 234 |
|
|
|
| 235 |
|
|
if($::USR2) |
| 236 |
|
|
{ |
| 237 |
|
|
$::USR2=0; |
| 238 |
|
|
|
| 239 |
|
|
&::syslog('info',"Received SIGUSR2, clearing document cache!"); |
| 240 |
|
|
|
| 241 |
|
|
Meteor::Document->clearDocuments() |
| 242 |
|
|
} |
| 243 |
|
|
|
| 244 |
|
|
my $t=time; |
| 245 |
|
|
if($t>$lastAgeCheck+$AGE_CHECK_INTERVALL) |
| 246 |
|
|
{ |
| 247 |
|
|
my $minTimeStap=time-$::CONF{'MaxMessageAge'}; |
| 248 |
|
|
Meteor::Channel->trimMessageStoresByTimestamp($minTimeStap); |
| 249 |
|
|
$lastAgeCheck=time; |
| 250 |
|
|
$t=$lastAgeCheck; |
| 251 |
|
|
|
| 252 |
|
|
Meteor::Subscriber->checkPersistentConnectionsForMaxTime(); |
| 253 |
|
|
} |
| 254 |
|
|
|
| 255 |
|
|
if(defined($nextPing) && $nextPing<=$t) |
| 256 |
|
|
{ |
| 257 |
|
|
$nextPing=undef; |
| 258 |
|
|
|
| 259 |
|
|
Meteor::Subscriber->pingPersistentConnections(); |
| 260 |
|
|
|
| 261 |
|
|
if(exists($::CONF{'MaxMessageAge'}) && $::CONF{'MaxMessageAge'}>2) |
| 262 |
|
|
{ |
| 263 |
|
|
$nextPing=$::CONF{'PingInterval'}+time; |
| 264 |
|
|
} |
| 265 |
|
|
} |
| 266 |
|
|
} |
| 267 |
|
|
}; |
| 268 |
|
|
unless($::TERM) |
| 269 |
|
|
{ |
| 270 |
|
|
&::syslog('alert',"$::PGM loop died (will restart in 2 seconds): $@"); |
| 271 |
|
|
sleep(2); |
| 272 |
|
|
} |
| 273 |
|
|
} |
| 274 |
|
|
|
| 275 |
|
|
# |
| 276 |
|
|
# Proper shutdown |
| 277 |
|
|
# |
| 278 |
|
|
if($::TERM) |
| 279 |
|
|
{ |
| 280 |
|
|
&::syslog('info',"Received SIGTERM, begin shutdown!"); |
| 281 |
|
|
|
| 282 |
|
|
$subscriberServer->close(); |
| 283 |
|
|
$controlServer->close(); |
| 284 |
|
|
|
| 285 |
|
|
unlink("/var/run/$::PGM.pid") unless($::CONF{'Debug'}); |
| 286 |
|
|
|
| 287 |
|
|
Meteor::Connection->closeAllConnections(); |
| 288 |
|
|
|
| 289 |
|
|
my $timoutAt=time+$MAX_EXIT_DELAY; |
| 290 |
|
|
|
| 291 |
|
|
while(Meteor::Connection->connectionCount() && time<$timoutAt) |
| 292 |
|
|
{ |
| 293 |
|
|
my $rVec=''; |
| 294 |
|
|
my $wVec=''; |
| 295 |
|
|
my $eVec=''; |
| 296 |
|
|
|
| 297 |
|
|
my $rout; |
| 298 |
|
|
my $wout; |
| 299 |
|
|
my $eout; |
| 300 |
|
|
|
| 301 |
|
|
Meteor::Connection->addAllHandleBits(\$rVec,\$wVec,\$eVec); |
| 302 |
|
|
|
| 303 |
|
|
my $result=&Meteor::Socket::sselect($rout=$rVec,$wout=$wVec,$eout=$eVec,$timoutAt-time); |
| 304 |
|
|
|
| 305 |
|
|
if($result>0) |
| 306 |
|
|
{ |
| 307 |
|
|
Meteor::Connection->checkAllHandleBits($rout,$wout,$eout); |
| 308 |
|
|
} |
| 309 |
|
|
} |
| 310 |
|
|
|
| 311 |
|
|
if(my $cnt=Meteor::Connection->connectionCount()) |
| 312 |
|
|
{ |
| 313 |
|
|
&::syslog('info',"$cnt client(s) unresponsive, will shutdown anyway"); |
| 314 |
|
|
|
| 315 |
|
|
exit(1); |
| 316 |
|
|
} |
| 317 |
|
|
|
| 318 |
|
|
&::syslog('info',"shutdown succeeded"); |
| 319 |
|
|
|
| 320 |
|
|
exit(0); |
| 321 |
|
|
} |
| 322 |
|
|
|
| 323 |
|
|
&::syslog('emerg',"$::PGM loop exited"); |
| 324 |
|
|
|
| 325 |
|
|
1; |
| 326 |
andrew.betts |
3 |
############################################################################EOF |
Parent Directory
| 
Revision Log