Class CurrentThreadHolder

RedisStudio/Base/Thread.h:86–109

private:
    class CurrentThreadHolder
    {
    public:
        CurrentThreadHolder(): _slot(TlsAlloc())
        {
            if (_slot == TLS_OUT_OF_INDEXES)
                throw std::exception("cannot allocate thread context key");
        }
        ~CurrentThreadHolder()
        {
            TlsFree(_slot);
        }
        Thread* get() const
        {
            return reinterpret_cast<Thread*>(TlsGetValue(_slot));
        }
        void set(Thread* pThread)
        {
            TlsSetValue(_slot, pThread);
        }
    
    private:
        DWORD _slot;
    };

    Runnable*    _pRunnableTarget;
    CallbackData _callbackTarget;