Have the client manager let the clients know that they are being shutdown.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2357 542714f4-19e9-0310-aa3c-eee0fc999fb1

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

@@ -1,5 +1,5 @@
 //
-// $Id: ClientManager.java,v 1.29 2003/03/02 03:47:06 mdb Exp $
+// $Id: ClientManager.java,v 1.30 2003/03/30 21:04:18 mdb Exp $
 
 package com.threerings.presents.server;
 
@@ -10,6 +10,7 @@ import java.util.HashSet;
 import java.util.Iterator;
 
 import com.samskivert.util.IntervalManager;
+import com.samskivert.util.StringUtil;
 
 import com.threerings.presents.Log;
 import com.threerings.presents.data.ClientObject;
@@ -31,7 +32,8 @@ import com.threerings.presents.server.util.SafeInterval;
  * boot for application-defined reasons).
  */
 public class ClientManager
-    implements ConnectionObserver, PresentsServer.Reporter
+    implements ConnectionObserver, PresentsServer.Reporter,
+               PresentsServer.Shutdowner
 {
     /**
      * Used by {@link #applyToClient}.
@@ -70,6 +72,22 @@ public class ClientManager
         PresentsServer.registerReporter(this);
     }
 
+    // documentation inherited from interface
+    public void shutdown ()
+    {
+        // inform all of our clients that they are being shut down
+        for (Iterator iter = _usermap.values().iterator(); iter.hasNext(); ) {
+            PresentsClient pc = (PresentsClient)iter.next();
+            try {
+                pc.shutdown();
+            } catch (Exception e) {
+                Log.warning("Client choked in shutdonw() [client=" +
+                            StringUtil.safeToString(pc) + "].");
+                Log.logStackTrace(e);
+            }
+        }
+    }
+
     /**
      * Instructs the client manager to construct instances of this derived
      * class of {@link PresentsClient} to managed newly accepted client

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

@@ -1,5 +1,5 @@
 //
-// $Id: PresentsClient.java,v 1.52 2003/02/01 04:43:47 mdb Exp $
+// $Id: PresentsClient.java,v 1.53 2003/03/30 21:04:18 mdb Exp $
 
 package com.threerings.presents.server;
 
@@ -383,6 +383,18 @@ public class PresentsClient
         _clobj = null;
     }
 
+    /**
+     * This is called when the server is shut down in the middle of a
+     * client session. In this circumstance, {@link #endSession} will
+     * <em>not</em> be called and so any persistent data that might
+     * normally be flushed at the end of a client's session should likely
+     * be flushed here.
+     */
+    public void shutdown  ()
+    {
+        // nothing to do by default
+    }
+
     /**
      * Makes a note that this client is subscribed to this object so that
      * we can clean up after ourselves if and when the client goes