write thread safe singleton class

**Surfer** · 24th May 2010, 18:52

write thread safe singleton class.

**Surfer** · 24th May 2010, 18:53

Code:

class CSingleton
{
    private:
        CSingleton *mInstance;
        ...
    public:
        Static Csingleton* getInstance()
        {
            AcquireLock();
            if(mInstance==NULL)
                mInstance=new CSingleton();
            ReleaseLock();
            return mInstance;
        }
}

AcquireLock/ReleaseLock can be implemented using various different lock semantics.