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Diff for /loncom/loncnew between versions 1.34 and 1.39

version 1.34, 2003/12/11 23:18:37 version 1.39, 2004/01/13 09:57:18
Line 35 Line 35
 #    - Add ability to create/negotiate lond connections (done).  #    - Add ability to create/negotiate lond connections (done).
 #    - Add general logic for dispatching requests and timeouts. (done).  #    - Add general logic for dispatching requests and timeouts. (done).
 #    - Add support for the lonc/lond requests.          (done).  #    - Add support for the lonc/lond requests.          (done).
 #    - Add logging/status monitoring.  #    - Add logging/status monitoring.                    (done)
 #    - Add Signal handling - HUP restarts. USR1 status report.  #    - Add Signal handling - HUP restarts. USR1 status report. (done)
 #    - Add Configuration file I/O                       (done).  #    - Add Configuration file I/O                       (done).
 #    - Add management/status request interface.  #    - Add management/status request interface.         (done)
 #    - Add deferred request capability.                  (done)  #    - Add deferred request capability.                  (done)
 #    - Detect transmission timeouts.  #    - Detect transmission timeouts.                     (done)
 #  #
   
 use strict;  use strict;
Line 89  my $DebugLevel = 0; Line 89  my $DebugLevel = 0;
 my $NextDebugLevel= 2; # So Sigint can toggle this.  my $NextDebugLevel= 2; # So Sigint can toggle this.
 my $IdleTimeout= 3600; # Wait an hour before pruning connections.  my $IdleTimeout= 3600; # Wait an hour before pruning connections.
   
   my $LogTransactions = 0; # When True, all transactions/replies get logged.
   
 #  #
 #  The variables below are only used by the child processes.  #  The variables below are only used by the child processes.
 #  #
Line 210  sub GetPeername { Line 212  sub GetPeername {
  return $peerfile;   return $peerfile;
     }      }
 }  }
 #----------------------------- Timer management ------------------------  
 =pod  =pod
   
 =head2 Debug  =head2 Debug
Line 262  sub ShowStatus { Line 263  sub ShowStatus {
 =cut  =cut
 sub SocketTimeout {  sub SocketTimeout {
     my $Socket = shift;      my $Socket = shift;
           Log("WARNING", "A socket timeout was detected");
       Debug(0, " SocketTimeout called: ");
       $Socket->Dump();
     KillSocket($Socket); # A transaction timeout also counts as      KillSocket($Socket); # A transaction timeout also counts as
                                 # a connection failure:                                  # a connection failure:
     $ConnectionRetriesLeft--;      $ConnectionRetriesLeft--;
 }  }
   #----------------------------- Timer management ------------------------
   
 =pod  =pod
   
Line 301  sub Tick { Line 305  sub Tick {
     #      #
     #  For each inflight transaction, tick down its timeout counter.      #  For each inflight transaction, tick down its timeout counter.
     #      #
     foreach my $item (keys %ActiveTransactions) {  
  my $Socket = $ActiveTransactions{$item}->getServer();  
  $Socket->Tick();  
     }  
     foreach my $item (keys %ActiveConnections) {      foreach my $item (keys %ActiveConnections) {
  my $State = $ActiveConnections{$item}->data->GetState();   my $State = $ActiveConnections{$item}->data->GetState();
  if ($State ne 'Idle' && $State ne 'SendingRequest' &&   if ($State ne 'Idle') {
     $State ne 'ReceivingReply') {  
     Debug(5,"Ticking Socket $State $item");      Debug(5,"Ticking Socket $State $item");
     $ActiveConnections{$item}->data->Tick();      $ActiveConnections{$item}->data->Tick();
  }   }
Line 515  sub CompleteTransaction { Line 515  sub CompleteTransaction {
   
     if (!$Transaction->isDeferred()) { # Normal transaction      if (!$Transaction->isDeferred()) { # Normal transaction
  my $data   = $Socket->GetReply(); # Data to send.   my $data   = $Socket->GetReply(); # Data to send.
    if($LogTransactions) {
       Log("SUCCESS", "Reply from lond: '$data'");
    }
  StartClientReply($Transaction, $data);   StartClientReply($Transaction, $data);
     } else { # Delete deferred transaction file.      } else { # Delete deferred transaction file.
  Log("SUCCESS", "A delayed transaction was completed");   Log("SUCCESS", "A delayed transaction was completed");
Line 659  sub KillSocket { Line 662  sub KillSocket {
     }      }
     if(exists($ActiveConnections{$Socket})) {      if(exists($ActiveConnections{$Socket})) {
  delete($ActiveConnections{$Socket});   delete($ActiveConnections{$Socket});
    $ConnectionCount--;
    if ($ConnectionCount < 0) { $ConnectionCount = 0; }
     }      }
     $ConnectionCount--;  
   
     #  If the connection count has gone to zero and there is work in the      #  If the connection count has gone to zero and there is work in the
     #  work queue, the work all gets failed with con_lost.      #  work queue, the work all gets failed with con_lost.
     #      #
Line 1219  sub ClientRequest { Line 1222  sub ClientRequest {
     exit;      exit;
  }   }
  Debug(8, "Complete transaction received: ".$data);   Debug(8, "Complete transaction received: ".$data);
    if($LogTransactions) {
       Log("SUCCESS", "Transaction: '$data'"); # Transaction has \n.
    }
  my $Transaction = LondTransaction->new($data);   my $Transaction = LondTransaction->new($data);
  $Transaction->SetClient($socket);   $Transaction->SetClient($socket);
  QueueTransaction($Transaction);   QueueTransaction($Transaction);
Line 1327  sub SetupLoncListener { Line 1333  sub SetupLoncListener {
       fd     => $socket);        fd     => $socket);
 }  }
   
   #
   #   Toggle transaction logging.
   #  Implicit inputs:  
   #     LogTransactions
   #  Implicit Outputs:
   #     LogTransactions
   sub ToggleTransactionLogging {
       print STDERR "Toggle transaction logging...\n";
       if(!$LogTransactions) {
    $LogTransactions = 1;
       } else {
    $LogTransactions = 0;
       }
   
   
       Log("SUCCESS", "Toggled transaction logging: $LogTransactions \n");
   }
   
 =pod   =pod 
   
 =head2 ChildStatus  =head2 ChildStatus
Line 1346  sub ChildStatus { Line 1370  sub ChildStatus {
     my $fh = IO::File->new(">>$docdir/lon-status/loncstatus.txt");      my $fh = IO::File->new(">>$docdir/lon-status/loncstatus.txt");
     print $fh $$."\t".$RemoteHost."\t".$Status."\t".      print $fh $$."\t".$RemoteHost."\t".$Status."\t".
  $RecentLogEntry."\n";   $RecentLogEntry."\n";
       #
       #  Write out information about each of the connections:
       #
       print $fh "Active connection statuses: \n";
       my $i = 1;
       print STDERR  "================================= Socket Status Dump:\n";
       foreach my $item (keys %ActiveConnections) {
    my $Socket = $ActiveConnections{$item}->data;
    my $state  = $Socket->GetState();
    print $fh "Connection $i State: $state\n";
    print STDERR "---------------------- Connection $i \n";
    $Socket->Dump();
    $i++;
       }
     $ConnectionRetriesLeft = $ConnectionRetries;      $ConnectionRetriesLeft = $ConnectionRetries;
 }  }
   
Line 1410  sub ChildProcess { Line 1448  sub ChildProcess {
     Event->signal(signal   => "USR1",      Event->signal(signal   => "USR1",
   cb       => \&ChildStatus,    cb       => \&ChildStatus,
   data     => "USR1");    data     => "USR1");
       Event->signal(signal   => "USR2",
     cb       => \&ToggleTransactionLogging);
     Event->signal(signal   => "INT",      Event->signal(signal   => "INT",
   cb       => \&ToggleDebug,    cb       => \&ToggleDebug,
   data     => "INT");    data     => "INT");
Removed from v.1.34  
changed lines
  Added in v.1.39

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