Added an option to bind the datagram socket to a specific

hostname, in hopes of fixing the issue with receiving datagrams 
from the staging server.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5793 542714f4-19e9-0310-aa3c-eee0fc999fb1

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

@@ -154,11 +154,11 @@ public class PresentsServer
         _clmgr.setInjector(injector);
 
         // configure our connection manager
-        _conmgr.init(getListenPorts(), getDatagramPorts());
+        _conmgr.init(getListenPorts(), getDatagramPorts(), getDatagramHostname());
 
         // initialize the time base services
         TimeBaseProvider.init(_invmgr, _omgr);
-        
+
         // Make the client manager shut down before the invoker and dobj threads. This will help
         // application code to avoid long chains of shutdown constraints (e.g. msoy bureau manager).
         _shutmgr.addConstraint(
@@ -207,6 +207,15 @@ public class PresentsServer
         return Client.DEFAULT_DATAGRAM_PORTS;
     }
 
+    /**
+     * Returns the hostname for which the connection manager will listen for datagrams, or
+     * <code>null</code> to bind to the wildcard address.
+     */
+    protected String getDatagramHostname ()
+    {
+        return null;
+    }
+
     /**
      * Called once the invoker and distributed object manager have both completed processing all
      * remaining events and are fully shutdown. <em>Note:</em> this is called as the last act of