[BACK]Return to lonc CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom

Diff for /loncom/Attic/lonc between versions 1.6 and 1.17

version 1.6, 2000/02/10 23:20:13 version 1.17, 2001/08/30 20:02:28
Line 12 Line 12
   
 # 6/4/99,6/5,6/7,6/8,6/9,6/10,6/11,6/12,7/14,7/19,  # 6/4/99,6/5,6/7,6/8,6/9,6/10,6/11,6/12,7/14,7/19,
 # 10/8,10/9,10/15,11/18,12/22,  # 10/8,10/9,10/15,11/18,12/22,
 # 2/8 Gerd Kortemeyer   # 2/8,7/25 Gerd Kortemeyer
   # 12/05 Scott Harrison
   # 12/05 Gerd Kortemeyer
   # 01/10/01 Scott Harrison
   # 03/14/01,03/15,06/12 Gerd Kortemeyer
   # 
 # based on nonforker from Perl Cookbook  # based on nonforker from Perl Cookbook
 # - server who multiplexes without forking  # - server who multiplexes without forking
   
Line 25  use Fcntl; Line 30  use Fcntl;
 use Tie::RefHash;  use Tie::RefHash;
 use Crypt::IDEA;  use Crypt::IDEA;
   
 $childmaxattempts=10;  # grabs exception and records it to log before exiting
   sub catchexception {
       my ($signal)=@_;
       $SIG{'QUIT'}='DEFAULT';
       $SIG{__DIE__}='DEFAULT';
       &logthis("<font color=red>CRITICAL: "
        ."ABNORMAL EXIT. Child $$ for server $wasserver died through "
        ."\"$signal\" with this parameter->[$@]</font>");
       die($@);
   }
   
   $childmaxattempts=5;
   
   # -------------------------------- Set signal handlers to record abnormal exits
   
   $SIG{'QUIT'}=\&catchexception;
   $SIG{__DIE__}=\&catchexception;
   
 # ------------------------------------ Read httpd access.conf and get variables  # ------------------------------------ Read httpd access.conf and get variables
   
Line 40  while ($configline=<CONFIG>) { Line 61  while ($configline=<CONFIG>) {
 }  }
 close(CONFIG);  close(CONFIG);
   
   # ----------------------------- Make sure this process is running from user=www
   my $wwwid=getpwnam('www');
   if ($wwwid!=$<) {
      $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
      $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
      system("echo 'User ID mismatch.  lonc must be run as user www.' |\
    mailto $emailto -s '$subj' > /dev/null");
      exit 1;
   }
   
   # --------------------------------------------- Check if other instance running
   
   my $pidfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
   
   if (-e $pidfile) {
      my $lfh=IO::File->new("$pidfile");
      my $pide=<$lfh>;
      chomp($pide);
      if (kill 0 => $pide) { die "already running"; }
   }
   
 # ------------------------------------------------------------- Read hosts file  # ------------------------------------------------------------- Read hosts file
   
 open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") || die "Can't read host file";  open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") || die "Can't read host file";
Line 74  sub REAPER {                        # ta Line 116  sub REAPER {                        # ta
   
 sub HUNTSMAN {                      # signal handler for SIGINT  sub HUNTSMAN {                      # signal handler for SIGINT
     local($SIG{CHLD}) = 'IGNORE';   # we're going to kill our children      local($SIG{CHLD}) = 'IGNORE';   # we're going to kill our children
     kill 'INT' => keys %children;      map {
           $wasserver=$children{$_};
           &logthis('Closing '.$wasserver.': '.&subreply('exit',$wasserver));
    kill ('INT',$_);
       } keys %children;
     my $execdir=$perlvar{'lonDaemons'};      my $execdir=$perlvar{'lonDaemons'};
     unlink("$execdir/logs/lonc.pid");      unlink("$execdir/logs/lonc.pid");
     &logthis("<font color=red>CRITICAL: Shutting down</font>");      &logthis("<font color=red>CRITICAL: Shutting down</font>");
Line 83  sub HUNTSMAN {                      # si Line 129  sub HUNTSMAN {                      # si
   
 sub HUPSMAN {                      # signal handler for SIGHUP  sub HUPSMAN {                      # signal handler for SIGHUP
     local($SIG{CHLD}) = 'IGNORE';  # we're going to kill our children      local($SIG{CHLD}) = 'IGNORE';  # we're going to kill our children
     kill 'INT' => keys %children;      map {
           $wasserver=$children{$_};
           &logthis('Closing '.$wasserver.': '.&subreply('exit',$wasserver));
    kill ('INT',$_);
       } keys %children;
     &logthis("<font color=red>CRITICAL: Restarting</font>");      &logthis("<font color=red>CRITICAL: Restarting</font>");
       unlink("$execdir/logs/lonc.pid");
     my $execdir=$perlvar{'lonDaemons'};      my $execdir=$perlvar{'lonDaemons'};
     exec("$execdir/lonc");         # here we go again      exec("$execdir/lonc");         # here we go again
 }  }
Line 179  while (1) { Line 230  while (1) {
                                     # See who died and start new one                                      # See who died and start new one
     foreach $thisserver (keys %hostip) {      foreach $thisserver (keys %hostip) {
         if (!$childpid{$thisserver}) {          if (!$childpid{$thisserver}) {
     if ($childatt{$thisserver}<=$childmaxattempts) {      if ($childatt{$thisserver}<$childmaxattempts) {
        $childatt{$thisserver}++;         $childatt{$thisserver}++;
                &logthis(                 &logthis(
    "<font color=yellow>INFO: Trying to reconnect for $thisserver "     "<font color=yellow>INFO: Trying to reconnect for $thisserver "
Line 244  print $remotesock "$answer"; Line 295  print $remotesock "$answer";
 $answer=<$remotesock>;  $answer=<$remotesock>;
 chomp($answer);  chomp($answer);
 &logthis("Init reply for $conserver: >$answer<");  &logthis("Init reply for $conserver: >$answer<");
   if ($answer ne 'ok') {
          my $st=120+int(rand(240));
          &logthis(
   "<font color=blue>WARNING: Init failed $conserver ($st secs)</font>");
          sleep($st);
          exit; 
   }
 sleep 5;  sleep 5;
 print $remotesock "pong\n";  print $remotesock "pong\n";
 $answer=<$remotesock>;  $answer=<$remotesock>;
Line 261  $key=$key.$buildkey.$key.$buildkey.$key. Line 319  $key=$key.$buildkey.$key.$buildkey.$key.
 $key=substr($key,0,32);  $key=substr($key,0,32);
 my $cipherkey=pack("H32",$key);  my $cipherkey=pack("H32",$key);
 if ($cipher=new IDEA $cipherkey) {  if ($cipher=new IDEA $cipherkey) {
    &logthis("Secure connection inititalized: $conserver");     &logthis("Secure connection initialized: $conserver");
 } else {  } else {
    my $st=120+int(rand(240));     my $st=120+int(rand(240));
    &logthis(     &logthis(
Line 351  while (1) { Line 409  while (1) {
     # check for new information on the connections we have      # check for new information on the connections we have
   
     # anything to read or accept?      # anything to read or accept?
     foreach $client ($select->can_read(1)) {      foreach $client ($select->can_read(0.1)) {
   
         if ($client == $server) {          if ($client == $server) {
             # accept a new connection              # accept a new connection
Line 400  while (1) { Line 458  while (1) {
         $rv = $client->send($outbuffer{$client}, 0);          $rv = $client->send($outbuffer{$client}, 0);
         unless (defined $rv) {          unless (defined $rv) {
             # Whine, but move on.              # Whine, but move on.
             warn "I was told I could write, but I can't.\n";              &logthis("I was told I could write, but I can't.\n");
             next;              next;
         }          }
           $errno=$!;
         if (($rv == length $outbuffer{$client}) ||          if (($rv == length $outbuffer{$client}) ||
             ($! == POSIX::EWOULDBLOCK)) {              ($errno == POSIX::EWOULDBLOCK) || ($errno == 0)) {
             substr($outbuffer{$client}, 0, $rv) = '';              substr($outbuffer{$client}, 0, $rv) = '';
             delete $outbuffer{$client} unless length $outbuffer{$client};              delete $outbuffer{$client} unless length $outbuffer{$client};
         } else {          } else {
             # Couldn't write all the data, and it wasn't because              # Couldn't write all the data, and it wasn't because
             # it would have blocked.  Shutdown and move on.              # it would have blocked.  Shutdown and move on.
   
       &logthis("Dropping data with ".$errno.": ".
                        length($outbuffer{$client}).", $rv");
   
             delete $inbuffer{$client};              delete $inbuffer{$client};
             delete $outbuffer{$client};              delete $outbuffer{$client};
             delete $ready{$client};              delete $ready{$client};
Line 489  sub nonblock { Line 552  sub nonblock {
             or die "Can't make socket nonblocking: $!\n";              or die "Can't make socket nonblocking: $!\n";
 }  }
   
   
   
   
   
Removed from v.1.6  
changed lines
  Added in v.1.17

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>