chxpckts.h

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

    ~_CStoreNameBufferPair();

    IHXBuffer* GetValue();
    void SetValue(IHXBuffer* pbufValue);
private:
    IHXBuffer* m_pbufValue;
};

/****************************************************************************
 * 
 *        Class:
 *
 *                CHXHeader
 *
 *        Purpose:
 *
 *                PN implementation of a basic header.
 *
 */

class CHXHeader : public IHXValues
{

private:
    INT32                        m_lRefCount;

    struct CValue
    {
        UINT32 m_lVal;
        BOOL m_lValValid;
        IHXBuffer* m_pIBuffer;
        IHXBuffer* m_pIString;
        const char* m_Key;

        CValue() : m_lValValid(FALSE), m_pIBuffer(NULL), 
            m_pIString(NULL), m_Key(NULL)
        {
        }

        CValue(CValue const& rhs)
        :   m_lVal(rhs.m_lVal), 
            m_lValValid(rhs.m_lValValid), 
            m_pIBuffer(rhs.m_pIBuffer),
            m_pIString(rhs.m_pIString), 
            m_Key(rhs.m_Key)
        {
            if (m_pIBuffer) m_pIBuffer->AddRef();
            if (m_pIString) m_pIString->AddRef();
        }
        CValue& operator= (CValue const&);
        ~CValue();

        HX_RESULT Get(IHXBuffer* CValue::*pMem, IHXBuffer*& value) const
        {
            if (!(this->*pMem)) return HXR_FAIL;
            value = this->*pMem;
            value->AddRef ();
            return HXR_OK;
        }
        
        HX_RESULT Get(UINT32 CValue::*pMem, UINT32& value) const
        {
            HX_ASSERT(pMem == &CValue::m_lVal);
            if (!m_lValValid) return HXR_FAIL;
            value = m_lVal;
            return HXR_OK;
        }
        
        void Set(IHXBuffer* CValue::*pMem, IHXBuffer* value)
        {
            HX_ASSERT(value);
            HX_RELEASE (this->*pMem);
            this->*pMem = value;
            value->AddRef();
        }
        
        void Set(UINT32 CValue::*pMem, UINT32 value)
        {
                m_lVal = value;
                m_lValValid = TRUE;
        }
        
        void Swap(CValue& rhs)
        {
            std::swap(m_lVal, rhs.m_lVal);
            std::swap(m_lValValid, rhs.m_lValValid);
            std::swap(m_pIBuffer, rhs.m_pIBuffer);
            std::swap(m_pIString, rhs.m_pIString);
            std::swap(m_Key, rhs.m_Key);
        }
    };

    struct MyCompare : public std::binary_function<const char*, const char*, bool>
    {
        char m_PreserveCase;
        
        explicit MyCompare(char PreserveCase) : m_PreserveCase(PreserveCase) 
        {
        }

        bool operator()(const char* p1, const char* p2) const;
    };
    
    typedef Loki::AssocVector<const char*, CValue, MyCompare> Map;
    //typedef std::map<std::string, CValue/*, MyCompare*/> Map;

    Map m_Map;

    template <typename TVal>
    HX_RESULT GetProperty(
        const char* pPropertyName,
        TVal CValue::*pMem,
        TVal& value)
    {
        HX_ASSERT(pPropertyName);
        //HX_ASSERT(pMem);
        Map::const_iterator i = m_Map.find(pPropertyName);
        return (i == m_Map.end()) ? HXR_FAIL : i->second.Get(pMem, value);
    }
    
    template <typename TVal>
    HX_RESULT SetProperty(
            const char* pPropertyName,
            TVal CValue::*pMem,
            TVal value)
    {
        HX_ASSERT(pPropertyName);

        Map::iterator i = m_Map.find(pPropertyName);
        CValue* pVal; // uninitialized
        if (i == m_Map.end())
        {
            char* pTmp = new char[strlen(pPropertyName)+1];
            strcpy(pTmp, pPropertyName); /* Flawfinder: ignore */
	    pVal = &m_Map[pTmp];
            pVal->m_Key = pTmp;
        }
        else
        {
            pVal = &i->second;
        }

        pVal->Set(pMem, value);
        
        return HXR_OK;
    }
    
    template <typename TVal>
    HX_RESULT GetNextProperty(
            const char*& pPropertyName,
            TVal CValue::*pMem,
            TVal& value,
            Map::const_iterator& iter)
    {
            for (; iter != m_Map.end(); ++iter)
            {
                    if (SUCCEEDED(iter->second.Get(pMem, value)))
                    {
                            pPropertyName = iter->second.m_Key;
                            return HXR_OK;
                    }
            }
            return HXR_FAIL;
    }


        Map::const_iterator 
                m_ULONG32Position,
                m_BufferPosition,
                m_CStringPosition;

        ~CHXHeader();

        PRIVATE_DESTRUCTORS_ARE_NOT_A_CRIME

protected:
#if 0
// function to encode CString property escape sequences
        IHXBuffer*                encodeCString(IHXBuffer* pBuffer);

// function to encode buffer property int MIME Base64
        IHXBuffer*                encodeBuffer(IHXBuffer* pBuffer);
#endif

public:
        CHXHeader()
                : m_lRefCount(0)
                , m_Map(MyCompare(FALSE)) // case-insensitive by default
        {
                m_ULONG32Position = m_BufferPosition = m_CStringPosition = m_Map.end();
        }

    /*
     *        IUnknown methods
     */
    STDMETHOD(QueryInterface)                (THIS_
                                        REFIID riid,
                                        void** ppvObj);

    STDMETHOD_(ULONG32,AddRef)                (THIS);

    STDMETHOD_(ULONG32,Release)                (THIS);

    /*
     *        IHXValues methods
     */

    STDMETHOD(SetPropertyULONG32)        (THIS_
                                        const char*         pPropertyName,
                                        ULONG32                 uPropertyValue);

    STDMETHOD(GetPropertyULONG32)        (THIS_
                                        const char*         pPropertyName,
                                        REF(ULONG32)         uPropertyValue);

    STDMETHOD(GetFirstPropertyULONG32)        (THIS_
                                        REF(const char*) pPropertyName,
                                        REF(ULONG32)         uPropertyValue);

    STDMETHOD(GetNextPropertyULONG32)        (THIS_
                                        REF(const char*) pPropertyName,
                                        REF(ULONG32)         uPropertyValue);


    STDMETHOD(SetPropertyBuffer)        (THIS_
                                        const char*         pPropertyName,
                                        IHXBuffer*         pPropertyValue);

    STDMETHOD(GetPropertyBuffer)        (THIS_
                                        const char*         pPropertyName,
                                        REF(IHXBuffer*) pPropertyValue);

#if 0
    STDMETHOD(GetEncodedPropertyBuffer)        (THIS_
                                        const char*         pPropertyName,
                                        REF(IHXBuffer*) pPropertyValue);
#endif

    STDMETHOD(GetFirstPropertyBuffer)        (THIS_
                                        REF(const char*) pPropertyName,
                                        REF(IHXBuffer*) pPropertyValue);

    STDMETHOD(GetNextPropertyBuffer)        (THIS_
                                        REF(const char*) pPropertyName,
                                        REF(IHXBuffer*) pPropertyValue);

    STDMETHOD(SetPropertyCString)        (THIS_
                                        const char*         pPropertyName,
                                        IHXBuffer*         pPropertyValue);

    STDMETHOD(GetPropertyCString)        (THIS_
                                        const char*         pPropertyName,
                                        REF(IHXBuffer*) pPropertyValue);

#if 0
    STDMETHOD(GetEncodedPropertyCString)(THIS_
                                        const char*         pPropertyName,
                                        REF(IHXBuffer*) pPropertyValue);
#endif

    STDMETHOD(GetFirstPropertyCString)        (THIS_
                                        REF(const char*) pPropertyName,
                                        REF(IHXBuffer*) pPropertyValue);

    STDMETHOD(GetNextPropertyCString)        (THIS_
                                        REF(const char*) pPropertyName,
                                        REF(IHXBuffer*) pPropertyValue);

    void PreserveCase(BOOL bPreserve);

public:
    static void mergeHeaders
    (
        IHXValues* pIHXValuesDestHeaders, 
        IHXValues* pIHXValuesSourceHeaders
    );

};

#endif
#endif /* _HXPCKTS_H_ */