/*---------------------------------------------------------------------------*
  Project:  Horizon
  File:     osl_Mbuf.h

  Copyright (C)2009 Nintendo Co., Ltd.  All rights reserved.

  These coded instructions, statements, and computer programs contain
  proprietary information of Nintendo of America Inc. and/or Nintendo
  Company Ltd., and are protected by Federal copyright law.  They may
  not be disclosed to third parties or copied or duplicated in any form,
  in whole or in part, without the prior written consent of Nintendo.

  $Rev: 12449 $
 *---------------------------------------------------------------------------*/

#ifndef NN_NET_OSL_OSL_MBUFINDEXED_H_
#define NN_NET_OSL_OSL_MBUFINDEXED_H_

typedef u32 nnnetOslMbufIndex;

/* mbuf for inter-process */
typedef struct nnnetOslMbufIndexed
{
    nnnetOslMbufIndex   m_nextIndex;                    /**< Next cluster index */
    nnnetOslMbufIndex   m_prevIndex;                    /**< Previous cluster index */
    void*               m_reserved;
    u32                 m_pad;
} nnnetOslMbufIndexedHead;

#ifdef __cplusplus

namespace nn {
namespace net {
namespace osl {

class Mbuf;
class MbufIndexed : public nnnetOslMbufIndexed
{
public:
    friend class MbufPool;
    typedef nnnetOslMbufIndex Index;
    static const u32    INVALID_INDEX   = 0xffffffff;

    static MbufIndexed* ConvertToIndexed(Mbuf* pMbuf);
    static Mbuf* ConvertFromIndex(Index index);

    void SetNext(Index index)
    { 
        m_nextIndex = index;
    }

    void SetPrevious(Index index)
    { 
        m_prevIndex = index;
    }

    Index GetIndex(void) const;

    void Dump(void) const;
};

}
}
} // namespace nn::net::osl

#endif // __cplusplus

#endif // NN_NET_OSL_OSL_MBUFINDEXED_H_