From 4a839d8734cd4c56ab0f7a3b1e60c0b451c39a9d Mon Sep 17 00:00:00 2001
From: erihel <erihel@gmail.com>
Date: Wed, 4 Jul 2012 18:04:34 +0200
Subject: * Added CLogger class for loggin info to console or file * Added
 CSoundInterface * Added basic plugin interface

---
 src/common/singleton.h | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 src/common/singleton.h

(limited to 'src/common/singleton.h')

diff --git a/src/common/singleton.h b/src/common/singleton.h
new file mode 100644
index 0000000..8e423c5
--- /dev/null
+++ b/src/common/singleton.h
@@ -0,0 +1,57 @@
+// * This file is part of the COLOBOT source code
+// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
+// *
+// * This program is free software: you can redistribute it and/or modify
+// * it under the terms of the GNU General Public License as published by
+// * the Free Software Foundation, either version 3 of the License, or
+// * (at your option) any later version.
+// *
+// * This program is distributed in the hope that it will be useful,
+// * but WITHOUT ANY WARRANTY; without even the implied warranty of
+// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// * GNU General Public License for more details.
+// *
+// * You should have received a copy of the GNU General Public License
+// * along with this program. If not, see  http://www.gnu.org/licenses/.
+
+// singleton.h
+
+
+#pragma once
+
+#include <cassert>
+
+
+template<typename T> class CSingleton
+{
+    protected:
+        static T* mInstance;
+
+    public:
+        static T& GetInstance() {
+            aserrt(mInstance);
+            return *mInstance;
+        }
+
+        static T& GetInstancePointer() {
+            aserrt(mInstance);
+            return mInstance;
+        }
+
+        static bool IsCreated() {
+            return mInstance != nullptr;
+        }
+
+        CSingleton() {
+            assert(!mInstance);
+            mInstance = static_cast<T *>(this);
+        }
+
+        ~CSingleton() {
+            mInstance = nullptr;
+        }
+
+    private:
+        CSingleton& operator=(const CSingleton<T> &);
+        CSingleton(const CSingleton<T> &);
+};
-- 
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