text: // 
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  // 
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  /**
   ***************************************************************************************************
   * @file  ObservableImpl.h
   * @brief AMFObservableImpl common template declaration
   ***************************************************************************************************
   */
  #ifndef AMF_ObservableImpl_h
  #define AMF_ObservableImpl_h
  #pragma once
  
  #include "Thread.h"
  #include <list>
  
  namespace amf
  {
      template<typename Observer>
      class AMFObservableImpl
      {
      private:
          typedef std::list<Observer*> ObserversList;
          ObserversList m_observers;
      public:
          AMFObservableImpl() : m_observers()
          {}
          virtual ~AMFObservableImpl()
          {
              assert(m_observers.size() == 0);
          }
          virtual void AMF_STD_CALL AddObserver(Observer* pObserver)
          {
              amf_bool found = false;
              AMFLock lock(&m_sc);
              
              for (typename ObserversList::iterator it = m_observers.begin(); it != m_observers.end(); it++)
              {
                  if (*it == pObserver)
                  {
                      found = true;
                      break;
                  }
              }
              if (found == false)
              {
                  m_observers.push_back(pObserver);
              }
          }
  
          virtual void AMF_STD_CALL RemoveObserver(Observer* pObserver)
          {
              AMFLock lock(&m_sc);
              m_observers.remove(pObserver);
          }
  
      protected:
          void AMF_STD_CALL ClearObservers()
          {
              AMFLock lock(&m_sc);
              m_observers.clear();
          }
  
          void AMF_STD_CALL NotifyObservers(void  (AMF_STD_CALL Observer::* pEvent)())
          {
              ObserversList tempList;
              {
                  AMFLock lock(&m_sc);
                  tempList = m_observers;
              }
              for (typename ObserversList::iterator it = tempList.begin(); it != tempList.end(); ++it)
              {
                  Observer* pObserver = *it;
                  (pObserver->*pEvent)();
              }
          }
  
          template<typename TArg0>
          void AMF_STD_CALL NotifyObservers(void (AMF_STD_CALL Observer::* pEvent)(TArg0), TArg0 arg0)
          {
              ObserversList tempList;
              {
                  AMFLock lock(&m_sc);
                  tempList = m_observers;
              }
              for (typename ObserversList::iterator it = tempList.begin(); it != tempList.end(); ++it)
              {
                  Observer* pObserver = *it;
                  (pObserver->*pEvent)(arg0);
              }
          }
          template<typename TArg0, typename TArg1>
          void AMF_STD_CALL NotifyObservers(void (AMF_STD_CALL Observer::* pEvent)(TArg0, TArg1), TArg0 arg0, TArg1 arg1)
          {
              ObserversList tempList;
              {
                  AMFLock lock(&m_sc);
                  tempList = m_observers;
              }
              for (typename ObserversList::iterator it = tempList.begin(); it != tempList.end(); it++)
              {
                  Observer* pObserver = *it;
                  (pObserver->*pEvent)(arg0, arg1);
              }
          }
      private:
          AMFCriticalSection m_sc;
      };
  }
  #endif //AMF_ObservableImpl_h
  