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Diff for /loncom/Attic/lonc between versions 1.11 and 1.17

version 1.11, 2000/12/06 18:05:51 version 1.17, 2001/08/30 20:02:28
Line 15 Line 15
 # 2/8,7/25 Gerd Kortemeyer  # 2/8,7/25 Gerd Kortemeyer
 # 12/05 Scott Harrison  # 12/05 Scott Harrison
 # 12/05 Gerd Kortemeyer  # 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 39  sub catchexception { Line 41  sub catchexception {
     die($@);      die($@);
 }  }
   
 $childmaxattempts=10;  $childmaxattempts=5;
   
 # -------------------------------- Set signal handlers to record abnormal exits  # -------------------------------- Set signal handlers to record abnormal exits
   
Line 59  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  # --------------------------------------------- Check if other instance running
   
 my $pidfile="$perlvar{'lonDaemons'}/logs/lonc.pid";  my $pidfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
Line 104  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 113  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 209  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 274  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 291  $key=$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 381  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 430  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};
Removed from v.1.11  
changed lines
  Added in v.1.17

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