Re: Threading classes concept ?

Lothar Behrens wrote:

Why would you want to instantiate the base class?

What's wrong with:

class Thread
{
   private:
       virtual void thread_func() = 0;
       static void start_thread(void* param)
       {
            static_cast<Thread*>(param)->thread_func();
       }
       void start()
       {
          os_specific_thread_starter(&start_thread, this);
       }
    protected:
       Thread() { }
       virtual ~Thread() { }
    private:
       Thread(const Thread&);
       Thread& operator=(const Thread&);
};

Then you have the following:

class MyThread : public Thread
{
    private:
      int n;
    public:
       MyThread(int n_) : Thread(), n(n_) { }
       ~MyThread();
    private:
      void thread_func()
      {
         std::cout << "Hello from thread " << n << std::endl;
      }
};

All you need to do is define thread_func.