1 files changed, 62 insertions, 0 deletions

diff --git a/src/leeds/base/singletonManager.h b/src/leeds/base/singletonManager.h
new file mode 100644
index 00000000..9c980bb2
--- /dev/null
+++ b/src/leeds/base/singletonManager.h
@@ -0,0 +1,62 @@
+#pragma once
+
+#include "common.h"
+
+namespace base
+{
+
+class cSingletonBase;
+
+class cSingletonManager
+{
+	cSingletonBase* head;
+	cSingletonBase* tail;
+
+public:
+	cSingletonManager() :
+		head(nil),
+		tail(nil)
+	{}
+
+	void Add(cSingletonBase*);
+	void Purge();
+	~cSingletonManager();
+};
+
+cSingletonManager& SingletonManager();
+
+class cSingletonBase
+{
+	friend class cSingletonManager;
+
+	cSingletonBase* next;
+
+public:
+	virtual ~cSingletonBase() {}
+};
+
+template<typename T>
+class cSingleton : public cSingletonBase
+{
+	static T* mspInstance;
+	static void CreateInstance()
+	{
+		mspInstance = new T();
+		SingletonManager().Add(mspInstance);
+	}
+
+public:
+	static T* Instance()
+	{
+		if (!mspInstance)
+			CreateInstance();
+		return mspInstance;
+	}
+
+	~cSingleton<T>()
+	{
+		mspInstance = nil;
+	}
+};
+
+}
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