Check to be sure that the client is still around before we send the

invocation response. (Better to catch it and report it here than have the
dobjmgr complain when it tries to dispatch an event on a non-existent
object.)


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@224 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/server/InvocationProvider.java

@@ -1,11 +1,14 @@
 //
-// $Id: InvocationProvider.java,v 1.4 2001/08/11 00:05:58 mdb Exp $
+// $Id: InvocationProvider.java,v 1.5 2001/08/11 02:02:24 mdb Exp $
 
 package com.threerings.cocktail.cher.server;
 
-import com.threerings.cocktail.cher.dobj.MessageEvent;
+import com.samskivert.util.StringUtil;
+
+import com.threerings.cocktail.cher.Log;
 import com.threerings.cocktail.cher.data.ClientObject;
 import com.threerings.cocktail.cher.data.InvocationObject;
+import com.threerings.cocktail.cher.dobj.MessageEvent;
 
 /**
  * Invocation providers should extend this class when implementing
@@ -114,10 +117,18 @@ public class InvocationProvider
 
     protected void deliverResponse (ClientObject source, Object[] args)
     {
+        // make sure they didn't go away in the meanwhile
+        if (source.isActive()) {
             // create the response event
             MessageEvent mevt = new MessageEvent(
                 source.getOid(), InvocationObject.RESPONSE_NAME, args);
             // and ship it off
             CherServer.omgr.postEvent(mevt);
+
+        } else {
+            Log.warning("Dropping invrsp due to disappearing client " +
+                        "[cloid=" + source.getOid() +
+                        ", args=" + StringUtil.toString(args) + "].");
+        }
     }
 }