Refactor

- Only use one instance of LogForm

Signed-off-by: Syrone Wong <wong.syrone@gmail.com>

shadowsocks-csharp/Program.cs

@@ -13,7 +13,9 @@ namespace Shadowsocks
 {
     static class Program
     {
-        static ShadowsocksController controller;
+        private static ShadowsocksController _controller;
+        // XXX: Don't change this name
+        private static MenuViewController _viewController;
 
         /// <summary>
         /// 应用程序的主入口点。
@@ -61,9 +63,9 @@ namespace Shadowsocks
 #else
                 Logging.OpenLogFile();
 #endif
-                controller = new ShadowsocksController();
-                MenuViewController viewController = new MenuViewController(controller);
-                controller.Start();
+                _controller = new ShadowsocksController();
+                _viewController = new MenuViewController(_controller);
+                _controller.Start();
                 Application.Run();
             }
         }
@@ -88,10 +90,10 @@ namespace Shadowsocks
             {
                 case PowerModes.Resume:
                     Logging.Info("os wake up");
-                    controller?.Start();
+                    _controller?.Start();
                     break;
                 case PowerModes.Suspend:
-                    controller?.Stop();
+                    _controller?.Stop();
                     Logging.Info("os suspend");
                     break;
             }
@@ -99,10 +101,10 @@ namespace Shadowsocks
 
         private static void Application_ApplicationExit(object sender, EventArgs e)
         {
-            if (controller != null)
+            if (_controller != null)
             {
-                controller.Stop();
-                controller = null;
+                _controller.Stop();
+                _controller = null;
             }
         }
     }