Move DirectPlay templates into directplayutils.h

refs #564

src/plugins/simulator/fs9/directplayutils.h

@@ -0,0 +1,45 @@
+/* Copyright (C) 2016
+ * swift project community / contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKSIMPLUGIN_FS9_DIRECTPLAYUTILS_H
+#define BLACKSIMPLUGIN_FS9_DIRECTPLAYUTILS_H
+
+namespace BlackSimPlugin
+{
+    namespace Fs9
+    {
+        //! Safely release a COM allocated object
+        template <class T>
+        void SafeRelease(T*& pT)
+        {
+            if (pT) { pT->Release(); }
+            pT = nullptr;
+        }
+
+        //! Safely delete an allocated pointer
+        template <class T>
+        void SafeDelete(T*& pT)
+        {
+            delete pT;
+            pT = nullptr;
+        }
+
+        //! Safely delete an allocated array
+        template <class T>
+        void SafeDeleteArray(T*& pT)
+        {
+            delete[] pT;
+            pT = nullptr;
+        }
+    }
+}
+
+#endif