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#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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