/*
 * BufferCore.h
 *
 *  Created on: 22 July 2017
 *      Author: wentzelc
 */

#ifndef REDACORE_ITEMBUFFERCORE_H_
#define REDACORE_ITEMBUFFERCORE_H_

// Standard C/C++ Libraries
#include <stdlib.h>

// redA Libraries
/* none */

//---------------------------------------------------------------------------

//***** Data Structures *****//

typedef struct SBufferItem  TBufferItem;

struct SBufferItem {
    void            * Entry;
    int             Size;

    TBufferItem     * NextItem;
};

//---------------------------------------------------------------------------

//***** Function Prototypes *****//

class CItemBuffer
{
    protected:
        // Parameters
        bool    CopyEntries;            // Make copies of entries and destroy them when done?
        int     Count;

        // Items
        TBufferItem     * FirstItem;
        TBufferItem     ** LastItem;

        // Item Life cycle
        TBufferItem *   CreateItem( void * Entry, int Size );
        bool            DestroyItem( TBufferItem ** BufferItem );

        virtual bool    DestroyEntry( void ** Entry );

    public:
        // Initiate object
        CItemBuffer( bool pCopyEntries );
        virtual ~CItemBuffer();

        // Buffer Operations
        bool    Push( void * Entry, int Size );
        void *  Pop( int * Size = NULL );
        void *  Peek( int * Size = NULL );
        bool    Delete();
        void    DeleteAll();

        // Misc
        int GetCount()  { return Count; };
};

//---------------------------------------------------------------------------

#endif /* REDACORE_ITEMBUFFERCORE_H_ */