[LON-CAPA-cvs] cvs: loncom / lonmaxima

[albertel]

albertel		Tue Jun 12 19:48:45 2007 EDT

  Modified files:              
    /loncom	lonmaxima 
  Log:
  - in some cases maxima just goes off and spins and spins, soft_close
    never returns etc. so taking the forceful way at when exiting
  
  
  
Index: loncom/lonmaxima
diff -u loncom/lonmaxima:1.29 loncom/lonmaxima:1.30
--- loncom/lonmaxima:1.29	Sat May 26 12:00:30 2007
+++ loncom/lonmaxima	Tue Jun 12 19:48:45 2007
@@ -3,7 +3,7 @@
 # The LearningOnline Network with CAPA
 # Connect to MAXIMA CAS
 #
-# $Id: lonmaxima,v 1.29 2007/05/26 16:00:30 www Exp $
+# $Id: lonmaxima,v 1.30 2007/06/12 23:48:45 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -237,7 +237,7 @@
         return;
     } else {
         # Child can *not* return from this subroutine.
-        $SIG{INT} = 'DEFAULT';      # make SIGINT kill us as it did before
+        
      
         # unblock signals
         sigprocmask(SIG_UNBLOCK, $sigset)
@@ -246,7 +246,15 @@
         &logthis('New process started');
 
         my $command=Expect->spawn('maxima');
-        $command->log_stdout(0);
+	# soft/hard_close can take awhile and we really
+        # don't care we just want it gone
+	$SIG{INT} = sub {
+	    my $pid = $command->pid();
+	    kill('KILL'=>$pid);
+	    exit; 
+	};
+
+	$command->log_stdout(0);
 	#$command->log_file("$execdir/logs/lonmaxima.session.log");
         &getmaximaoutput($command);