gistfile1.txt

class B;

class A {
friend class B;

public:
   const QByteArray content() const {
      return QByteArray::fromRawData(content,size);
   }

private:
   A(int* count_ref,const char* c, const int s, const int k, B* m):manager(m),size(s),content(c),key(k) {
      count = count_ref;
      (*count)++;
   }
   A(const A& copy);
   ~A() {
      (*count)++;
      if ((*count) >= 0)
          manager->free(key);
    }
   int* count;
   B* manager;
   const int size;
   const char* content;
   const int key;
};

class B {
 frient class A;

 A get(QByteArray b) {
    //create an "A"
 }

private:
   void free(int key) {
      //free the string
   }
   struct MyInternalStruct {
       char* content;
       int  size;
       int key;
   };
   
   QHash<int key,MyInternalStruct*> m_hCache;

};