Where to initialize CRITICAL_SECTION in a singleton?

[Salvadoravi]

Hi all,

I want to use a CRITICAL_SECTION in my singleton class to synchronize access by multiple threads.

I need to lock the singleton even after initialization so the double checked lock perils are not an issue for me.

What I don't unserstand is where do I need to initialize my critical section?

Can someone show me in the following code where InitilalizeCriticalSection() needs to be used?

class CSingleton
{
private:
    static CRITICAL_SECTION m_cs;
    static CSingleton *pInstance;

    CSingleton();
    CSingleton(const CSingleton&);
    CSingleton&  operator=(const CSingleton&);
    
public:  
    static CSingleton& Instance(); 
};

Singleton* CSingleton::pInstance = NULL;
Singleton* CSingleton::m_cs = 0;

Singleton* Singleton::Instance()
{
    EnterCriticalSection(&m_cs); // To simplify I'm not using raii guard
	
    if ( !pInstance )
        pInstance = new CSingleton;
  
    // Do stuff............

    LeaveCriticalSection(&m_cs);
    return *pInstance;
}

Many thanks!!!!