Illegal Operation

by Jeff Trier · in Torque Game Engine · 03/14/2003 (4:49 pm) · 8 replies · 03/14/2003 (5:03 pm)

template <class T> class Resource
{
private:
   ResourceObject *obj;
   // ***WARNING***
   // Using a faster lock that bypasses the resource manger.
   // void _lock() { if (obj) obj->rm->lockResource( obj ); }
   void _lock();
   void _unlock();

public:
   // If assigned a ResourceObject, it's assumed to already have
   // been locked, lock count is incremented only for copies or
   // assignment from another Resource.
   Resource() : obj(NULL) { ; }
   Resource(ResourceObject *p) : obj(p) { ; }
   Resource(const Resource &res) : obj(res.obj) { _lock(); }
   ~Resource() { unlock(); }

   const char *getFilePath() const { return (obj ? obj->path : NULL); }
   const char *getFileName() const { return (obj ? obj->name : NULL); }

   Resource& operator= (ResourceObject *p) { _unlock(); obj = p; return *this; }
   Resource& operator= (const Resource &r) { _unlock(); obj = r.obj; _lock(); return *this; }

   U32 getCRC() { return (obj ? obj->crc : 0); }
   bool isNull()   const { return ((obj == NULL) || (obj->mInstance == NULL)); }
   operator bool() const { return ((obj != NULL) && (obj->mInstance != NULL)); }
   T* operator->()   { return (T*)obj->mInstance; }
   T& operator*()    { return *((T*)obj->mInstance); }
   operator T*() const    { return (obj) ? (T*)obj->mInstance : (T*)NULL; }
   const T* operator->() const  { return (const T*)obj->mInstance; }
   const T& operator*() const   { return *((const T*)obj->mInstance); }
   operator const T*() const    { return (obj) ? (const T*)obj->mInstance :  (const T*)NULL; }
   void unlock();
   void purge();
};

Game Development Community

Illegal Operation

About the author

Recent Threads