Allow subclasses to change how signal handlers are registered

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@6132 542714f4-19e9-0310-aa3c-eee0fc999fb1

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

@@ -80,7 +80,7 @@ public class ClientManager
     }
 
     /**
-     * Used by entites that wish to track when clients initiate and end sessions on this server.
+     * Used by entities that wish to track when clients initiate and end sessions on this server.
      */
     public static interface ClientObserver
     {

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

@@ -130,16 +130,7 @@ public class PresentsServer
         SystemInfo si = new SystemInfo();
         log.info("Starting up server", "os", si.osToString(), "jvm", si.jvmToString());
 
-        // register SIGTERM, SIGINT (ctrl-c) and a SIGHUP handlers
+        registerSignalHandlers(injector);
-        boolean registered = false;
-        try {
-            registered = injector.getInstance(SunSignalHandler.class).init();
-        } catch (Throwable t) {
-            log.warning("Unable to register Sun signal handlers", "error", t);
-        }
-        if (!registered) {
-            injector.getInstance(NativeSignalHandler.class).init();
-        }
 
         // initialize our deprecated legacy static references
         omgr = _omgr;
@@ -172,6 +163,20 @@ public class PresentsServer
         _lifecycle.init();
     }
 
+    protected void registerSignalHandlers (Injector injector)
+    {
+        // register SIGTERM, SIGINT (ctrl-c) and a SIGHUP handlers
+        boolean registered = false;
+        try {
+            registered = injector.getInstance(SunSignalHandler.class).init();
+        } catch (Throwable t) {
+            log.warning("Unable to register Sun signal handlers", "error", t);
+        }
+        if (!registered) {
+            injector.getInstance(NativeSignalHandler.class).init();
+        }
+    }
+
     /**
      * Starts up all of the server services and enters the main server event loop.
      */