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chxpckts.h：源码内容
							/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 
#ifndef _HXPCKTS_H_
#include "hxcppflags.h"
#ifndef HX_CPP_BASIC_TEMPLATES
#include "old_hxpckts.h"
#else
#define _HXPCKTS_H_
#include "assocvector.h"
#include "hxtypes.h"
#include "hlxclib/string.h"
#include "hxmap.h"
#include "ihxpckts.h"
#include "hxbuffer.h" /* For all the places that just include this */
struct HXPacketInfo
{
    UINT8   lost;
    UINT8   ASMFlags;
    UINT16  ASMRuleNumber;
    UINT16  streamNum;
    UINT32  time;
};
/****************************************************************************
 * 
 *        Class:
 *
 *                CHXPacket
 *
 *        Purpose:
 *
 *                PN implementation of a basic packet.
 *
 */
class CHXPacket : public IHXRTPPacket
{
protected:
    LONG32                m_lRefCount;
    IHXBuffer*                m_pBuffer;
    ULONG32                m_ulTime;
    UINT16                m_uStreamNumber;        
    UINT8                m_unASMFlags;
    UINT16                m_unASMRuleNumber;
    BOOL                m_bIsLost;
    
    ~CHXPacket()
    {
        if (m_pBuffer)
        {
            m_pBuffer->Release();
        }
    };
    
    inline HX_RESULT _Get(
        IHXBuffer*& pBuffer, 
        ULONG32 &ulTime,
        UINT16 &uStreamNumber,
        UINT8 &unASMFlags,
        UINT16 &unASMRuleNumber);
    inline HX_RESULT _Set(
           IHXBuffer* pBuffer, 
           ULONG32 ulTime,
           UINT16 uStreamNumber,
           UINT8 unASMFlags,
           UINT16 unASMRuleNumber);
public:
    CHXPacket()
        : m_lRefCount(0)
        , m_pBuffer(NULL)
        , m_ulTime(0)
        , m_uStreamNumber(0)
        , m_unASMFlags(0)
        , m_unASMRuleNumber(0)
        , m_bIsLost(FALSE)
    {
        ;
    }
    /*
     *        IUnknown methods
     */
    STDMETHOD(QueryInterface)        (THIS_
                                REFIID riid,
                                void** ppvObj);
    STDMETHOD_(ULONG32,AddRef)        (THIS);
    STDMETHOD_(ULONG32,Release)        (THIS);
    /*
     *        IHXPacket methods
     */
    STDMETHOD(Get)  (THIS_
                    REF(IHXBuffer*)        pBuffer, 
                    REF(ULONG32)                ulTime,
                    REF(UINT16)                uStreamNumber,
                    REF(UINT8)                unASMFlags,
                    REF(UINT16)                unASMRuleNumber);
    STDMETHOD_(IHXBuffer*,GetBuffer)                (THIS);
    STDMETHOD_(ULONG32,GetTime)                        (THIS);
    STDMETHOD_(UINT16,GetStreamNumber)                (THIS);
    STDMETHOD_(UINT8,GetASMFlags)                (THIS);
    STDMETHOD_(UINT16,GetASMRuleNumber)                (THIS);
    STDMETHOD_(BOOL,IsLost)                        (THIS);
    STDMETHOD(SetAsLost)                        (THIS);
    STDMETHOD(Set)                                (THIS_
                                                IHXBuffer*                pBuffer, 
                                                ULONG32                        ulTime,
                                                UINT16                        uStreamNumber,
                                                UINT8                        unASMFlags,
                                                UINT16                        unASMRuleNumber);
    /*
     *        IHXPacket methods
     */
   STDMETHOD(GetRTP)                                (THIS_
                                                REF(IHXBuffer*)        pBuffer, 
                                                REF(ULONG32)                ulTime,
                                                REF(ULONG32)                ulRTPTime,
                                                REF(UINT16)                uStreamNumber,
                                                REF(UINT8)                unASMFlags,
                                                REF(UINT16)                unASMRuleNumber);
   STDMETHOD_(ULONG32,GetRTPTime)                (THIS);
   STDMETHOD(SetRTP)                                (THIS_
                                                IHXBuffer*                pBuffer, 
                                                ULONG32                        ulTime,
                                                ULONG32                        ulRTPTime,
                                                UINT16                        uStreamNumber,
                                                UINT8                        unASMFlags,
                                                UINT16                        unASMRuleNumber);
   // serialization method
   static void        Pack        (IHXPacket* pPacket, char* pData, UINT32& ulSize);
   static void        UnPack        (IHXPacket*& pPacket, char* pData, UINT32 ulSize);
};
/****************************************************************************
 * 
 *        Class:
 *
 *                CHXRTPPacket
 *
 *        Purpose:
 *
 *                PN implementation of a RTP packet.
 *
 */
class CHXRTPPacket : public CHXPacket
{
protected:
    ULONG32                        m_ulRTPTime;
    ~CHXRTPPacket()
    {
        ;
    }
public:
    CHXRTPPacket()
        : m_ulRTPTime(0)
    {
        ;
    }
    /*
     *        IUnknown methods - override
     */
    STDMETHOD(QueryInterface)        (THIS_
                                REFIID riid,
                                void** ppvObj);
    STDMETHOD_(ULONG32,Release)        (THIS);
    /*
     *        IHXPacket methods - override
     */
    STDMETHOD(Set)                                (THIS_
                                                IHXBuffer*                pBuffer, 
                                                ULONG32                        ulTime,
                                                UINT16                        uStreamNumber,
                                                UINT8                        unASMFlags,
                                                UINT16                        unASMRuleNumber);
    /*
     *        IHXRTPPacket methods - override
     */
    STDMETHOD(GetRTP)                                (THIS_
                                                REF(IHXBuffer*)        pBuffer, 
                                                REF(ULONG32)                ulTime,
                                                REF(ULONG32)                ulRTPTime,
                                                REF(UINT16)                uStreamNumber,
                                                REF(UINT8)                unASMFlags,
                                                REF(UINT16)                unASMRuleNumber);
    STDMETHOD_(ULONG32,GetRTPTime)                (THIS);
    STDMETHOD(SetRTP)                                (THIS_
                                                IHXBuffer*                pBuffer, 
                                                ULONG32                        ulTime,
                                                ULONG32                        ulRTPTime,
                                                UINT16                        uStreamNumber,
                                                UINT8                        unASMFlags,
                                                UINT16                        unASMRuleNumber);
};
class _CStoreName
{
public:
    _CStoreName();
    virtual ~_CStoreName();
    const CHXString& GetName() const;
    void SetName(const char* szName);
private:
    CHXString m_strName;
};
class _CStoreNameUINT32Pair : public _CStoreName
{
public:
    _CStoreNameUINT32Pair();
    ~_CStoreNameUINT32Pair();
    UINT32 GetValue();
    void SetValue(UINT32 ulValue);
private:
    UINT32 m_ulValue;
};
class _CStoreNameBufferPair : public _CStoreName
{
public:
    _CStoreNameBufferPair();
    ~_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_ */

						