Replaced old wacked-in-head system with proper reference counting for

client objects.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1989 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/data/ClientObject.dobj

@@ -1,11 +1,13 @@
 //
-// $Id: ClientObject.dobj,v 1.2 2002/09/19 23:36:59 mdb Exp $
+// $Id: ClientObject.dobj,v 1.3 2002/11/26 02:14:24 mdb Exp $
 
 package com.threerings.presents.data;
 
 import com.threerings.presents.dobj.DObject;
 import com.threerings.presents.dobj.DSet;
 
+import com.threerings.presents.Log;
+
 /**
  * Every client in the system has an associated client object to which
  * only they subscribe. The client object can be used to deliver messages
@@ -29,4 +31,32 @@ public class ClientObject extends DObject
     {
         return "(" + getOid() + ")";
     }
+
+    /**
+     * Used for reference counting client objects, adds a reference to
+     * this object.
+     */
+    public synchronized void reference ()
+    {
+        _references++;
+//         Log.info("Incremented references [who=" + who() +
+//                  ", refs=" + _references + "].");
+    }
+
+    /**
+     * Used for reference counting client objects, releases a reference to
+     * this object.
+     *
+     * @return true if the object has remaining references, false
+     * otherwise.
+     */
+    public synchronized boolean release ()
+    {
+//         Log.info("Decremented references [who=" + who() +
+//                  ", refs=" + (_references-1) + "].");
+        return (--_references > 0);
+    }
+
+    /** Used to reference count resolved client objects. */
+    protected transient int _references;
 }

src/java/com/threerings/presents/data/ClientObject.java

@@ -1,11 +1,13 @@
 //
-// $Id: ClientObject.java,v 1.4 2002/09/19 23:36:59 mdb Exp $
+// $Id: ClientObject.java,v 1.5 2002/11/26 02:14:24 mdb Exp $
 
 package com.threerings.presents.data;
 
 import com.threerings.presents.dobj.DObject;
 import com.threerings.presents.dobj.DSet;
 
+import com.threerings.presents.Log;
+
 /**
  * Every client in the system has an associated client object to which
  * only they subscribe. The client object can be used to deliver messages
@@ -33,6 +35,34 @@ public class ClientObject extends DObject
         return "(" + getOid() + ")";
     }
 
+    /**
+     * Used for reference counting client objects, adds a reference to
+     * this object.
+     */
+    public synchronized void reference ()
+    {
+        _references++;
+//         Log.info("Incremented references [who=" + who() +
+//                  ", refs=" + _references + "].");
+    }
+
+    /**
+     * Used for reference counting client objects, releases a reference to
+     * this object.
+     *
+     * @return true if the object has remaining references, false
+     * otherwise.
+     */
+    public synchronized boolean release ()
+    {
+//         Log.info("Decremented references [who=" + who() +
+//                  ", refs=" + (_references-1) + "].");
+        return (--_references > 0);
+    }
+
+    /** Used to reference count resolved client objects. */
+    protected transient int _references;
+
     /**
      * Requests that the specified entry be added to the
      * <code>receivers</code> set. The set will not change until the event is