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Diff for /loncom/lond between versions 1.385 and 1.386

version 1.385, 2007/10/08 17:40:56 version 1.386, 2007/10/08 21:05:49
Line 74  my $keymode; Line 74  my $keymode;
   
 my $cipher; # Cipher key negotiated with client  my $cipher; # Cipher key negotiated with client
 my $tmpsnum = 0; # Id of tmpputs.  my $tmpsnum = 0; # Id of tmpputs.
 my $max_children = 1;           # warn when exceeding this  
 my $max_children_enforcing = 0;  
   
 #   # 
 #   Connection type is:  #   Connection type is:
Line 5181  $server = IO::Socket::INET->new(LocalPor Line 5179  $server = IO::Socket::INET->new(LocalPor
   
 my %children               = ();       # keys are current child process IDs  my %children               = ();       # keys are current child process IDs
   
 sub flip_max_children_enforcing {  
     $max_children_enforcing = !$max_children_enforcing;  
     &logthis("Flipped child maximum enforcement to (".  
      $max_children_enforcing.")");  
 }  
   
 sub REAPER {                        # takes care of dead children  sub REAPER {                        # takes care of dead children
     $SIG{CHLD} = \&REAPER;      $SIG{CHLD} = \&REAPER;
     &status("Handling child death");      &status("Handling child death");
Line 5496  $SIG{INT}  = $SIG{TERM} = \&HUNTSMAN; Line 5488  $SIG{INT}  = $SIG{TERM} = \&HUNTSMAN;
 $SIG{HUP}  = \&HUPSMAN;  $SIG{HUP}  = \&HUPSMAN;
 $SIG{USR1} = \&checkchildren;  $SIG{USR1} = \&checkchildren;
 $SIG{USR2} = \&UpdateHosts;  $SIG{USR2} = \&UpdateHosts;
 $SIG{SEGV} = \&flip_max_children_enforcing;  
   
 #  Read the host hashes:  #  Read the host hashes:
 &Apache::lonnet::load_hosts_tab();  &Apache::lonnet::load_hosts_tab();
Line 5512  while (1) { Line 5503  while (1) {
     &status('Starting accept');      &status('Starting accept');
     $client = $server->accept() or next;      $client = $server->accept() or next;
     &status('Accepted '.$client.' off to spawn');      &status('Accepted '.$client.' off to spawn');
     my $child_count = scalar(keys(%children));      make_new_child($client);
     if ($child_count > $max_children) {  
  &logthis("Warning too many children (".$child_count.")");  
     }  
 #    if ($child_count > $max_children && $max_children_enforcing) {  
 # &logthis(" Not creating new child ");  
 # $client->close();  
 #    } else {  
  &make_new_child($client);  
 #    }  
     &logthis("Concurrent children at ($child_count)");  
     &status('Finished spawning');      &status('Finished spawning');
 }  }
   
Line 5725  sub make_new_child { Line 5706  sub make_new_child {
 # ------------------------------------------------------------ Process requests  # ------------------------------------------------------------ Process requests
     my $keep_going = 1;      my $keep_going = 1;
     my $user_input;      my $user_input;
     my $max_size = (split("\n",`ps -o vsz $$`))[-1];  
     while(($user_input = get_request) && $keep_going) {      while(($user_input = get_request) && $keep_going) {
  alarm(120);   alarm(120);
  Debug("Main: Got $user_input\n");   Debug("Main: Got $user_input\n");
  $keep_going = &process_request($user_input);   $keep_going = &process_request($user_input);
  if (!$max_children_enforcing) {  
     my $new_size = (split("\n",`ps -o vsz $$`))[-1];  
     if ($new_size > $max_size) {  
  &logthis("size increase of ".($new_size-$max_size)." ($new_size) while processing (".length($user_input).")\n".substr($user_input,0,80));  
  $max_size = $new_size;  
     }  
  }  
  alarm(0);   alarm(0);
  &status('Listening to '.$clientname." ($keymode)");      &status('Listening to '.$clientname." ($keymode)");   
     }      }
Line 6417  sub sethost { Line 6390  sub sethost {
  eq &Apache::lonnet::get_host_ip($hostid)) {   eq &Apache::lonnet::get_host_ip($hostid)) {
  $currenthostid  =$hostid;   $currenthostid  =$hostid;
  $currentdomainid=&Apache::lonnet::host_domain($hostid);   $currentdomainid=&Apache::lonnet::host_domain($hostid);
  #&logthis("Setting hostid to $hostid, and domain to $currentdomainid");   &logthis("Setting hostid to $hostid, and domain to $currentdomainid");
     } else {      } else {
  &logthis("Requested host id $hostid not an alias of ".   &logthis("Requested host id $hostid not an alias of ".
  $perlvar{'lonHostID'}." refusing connection");   $perlvar{'lonHostID'}." refusing connection");
Removed from v.1.385  
changed lines
  Added in v.1.386

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