chxmapbuckets.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
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 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
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 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
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 * This file is part of the Helix DNA Technology. RealNetworks is the 
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#ifndef _CHLXMAPBUCKETS_H_
#define _CHLXMAPBUCKETS_H_

#include "hxmaputils.h"

class CHlxMapBuckets
{
public:
    typedef HlxMap::IntVec_t ITEM;

    CHlxMapBuckets() : m_items(0), m_size(0)
    {
    }

    CHlxMapBuckets(UINT16 num) : m_items(0), m_size(0)
    {
        // Nasty new in constructor makes it hard to detect OOM errors,
        // but I don't think this constructor is actually used by anybody.
        m_items = new ITEM[num];
        m_size = num;
    }

    ~CHlxMapBuckets() { HX_VECTOR_DELETE(m_items); }

    inline ITEM& operator[] (int idx)
    {
        return m_items[idx];
    }

    inline const ITEM& operator[] (int idx) const
    {
        return m_items[idx];
    }

    inline bool empty () const { return !m_items; }

    inline UINT16 size() const { return m_size; }

    inline HX_RESULT Init (UINT16 num)
    {
        HX_VECTOR_DELETE(m_items);
        m_items = new ITEM[num];
        if( !m_items )
        {
            return HXR_OUTOFMEMORY;
        }
        m_size = num;
        return HXR_OK;
    }

private:
    ITEM*       m_items;
    UINT16      m_size;
};

#endif // _CHLXMAPBUCKETS_H_