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#ifndef __JE_LUA_SHARED_H__
#define __JE_LUA_SHARED_H__

#include <map>
#include <vector>
#include <functional>

#include "libjin/jin.h"

namespace JinEngine
{
    namespace Lua
    {

        class LuaObject;

        ///
        /// Thread shared object wrapper.
        ///
        class Shared
        {
        public:
            Shared(Object* obj)
                : mCount(0)
                , mObject(obj)
            {
            }

            inline Object* operator->()
            {
                return static_cast<Object*>(mObject);
            }

            inline Object* getObject()
            {
                return static_cast<Object*>(mObject);
            }

            template<class T>
            inline T* getObject()
            {
                return static_cast<T*>(mObject);
            }

        private:
            friend class LuaObject;

            // Disable copy.
            Shared(const Shared& shared);

            ///
            /// Sharedֻڶ
            ///
            ~Shared()
            {
                delete mObject;
            }

            ///
            /// ͬһ̵߳lua_StateУLuaObjectEngineObjectӦһһӦLuaObject(lua runtime)ü
            /// ͻաEngine-sideüΪά̵ͬ߳lua_StateͬһEngineObjectÿLuaObjectһ
            /// Sharedʱһüͬһ߳УһEngineObjectֻһLuaObject󶨣new 
            /// instanceУômCountͱEngineObjectĹ߳
            ///
            inline void Shared::retain()
            {
                ++mCount;
            }

            inline void Shared::release()
            {
                if (--mCount <= 0)
                    delete this;
            }

            Object* mObject;
            int mCount;

        };
        
    } // namespace Lua
} // namespace JinEngine

#endif