Leaked source code of windows server 2003
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/*--------------------------------------------------------------------------*
*
* Microsoft Windows
* Copyright (C) Microsoft Corporation, 1992 - 1999
*
* File: strtable.h
*
* Contents: Interface file for CStringTable
*
* History: 25-Jun-98 jeffro Created
*
*--------------------------------------------------------------------------*/
#ifndef STRTABLE_H
#define STRTABLE_H
#pragma once
#include <exception> // for class exception
#include <string> // for string relational operators
#include "guidhelp.h" // for GUID relational operators
#include "stgio.h"
#include "strings.h"
#ifdef DBG
#define DECLARE_DIAGNOSITICS() \
public: void Dump() const;
#else
#define DECLARE_DIAGNOSITICS() \
public: void Dump() const {}
#endif
#ifdef DBG
extern CTraceTag tagStringTable;
#endif // DBG
/*--------------------------------------------------------------------------
* IdentifierRange should be private to CIdentifierPool, but
* compiler bugs prevent it.
*/
template<class T>
class IdentifierRange
{
public:
IdentifierRange(T idMin_ = T(), T idMax_ = T())
: idMin (idMin_), idMax (idMax_)
{ ASSERT (idMin <= idMax); }
bool operator== (const IdentifierRange<T>& other) const
{ return ((idMin == other.idMin) && (idMax == other.idMax)); }
bool operator!= (const IdentifierRange<T>& other) const
{ return (!(*this == other.idMin)); }
T idMin;
T idMax;
};
template<class T = int>
class CIdentifierPool : public CXMLObject
{
public:
typedef IdentifierRange<T> Range;
typedef std::list<Range> RangeList;
private:
#if _MSC_VER > 1300
template <class U>
friend IStream& operator>> (IStream& stm, CIdentifierPool<U>& pool);
template <class U>
friend IStream& operator<< (IStream& stm, const CIdentifierPool<U>& pool);
#else
// VC7 bug - doesn't handle template friends properly. By luck, this works.
friend IStream& operator>> (IStream& stm, CIdentifierPool<T>& pool);
friend IStream& operator<< (IStream& stm, const CIdentifierPool<T>& pool);
#endif
virtual void Persist(CPersistor &persistor);
DEFINE_XML_TYPE(XML_TAG_IDENTIFIER_POOL);
SC ScInvertRangeList (RangeList& rlInvert) const;
#ifdef DBG
void DumpRangeList (const RangeList& l) const;
#endif
public:
DECLARE_DIAGNOSITICS();
CIdentifierPool (T idMin, T idMax);
CIdentifierPool (IStream& stm);
T Reserve();
bool Release(T idRelease);
bool IsValid () const;
bool IsRangeListValid (const RangeList& rl) const;
SC ScGenerate (const RangeList& rlUsedIDs);
static bool AddToRangeList (RangeList& rl, const Range& rangeToAdd);
static bool AddToRangeList (RangeList& rl, T idAdd);
class pool_exhausted : public exception
{
public:
pool_exhausted(const char *_S = "pool exhausted") _THROW0()
: exception(_S) {}
virtual ~pool_exhausted() _THROW0()
{}
};
private:
RangeList m_AvailableIDs;
RangeList m_StaleIDs;
T m_idAbsoluteMin;
T m_idAbsoluteMax;
T m_idNextAvailable;
};
typedef CIdentifierPool<MMC_STRING_ID> CStringIDPool;
/*--------------------------------------------------------------------------
* CEntry and CStoredEntry should be private to CStringTable,
* but compiler bugs prevent it.
*/
/*
* represents a string table entry in memory
*/
class CEntry : public CXMLObject
{
friend class CStringTable;
friend class CStringEnumerator;
friend struct CompareEntriesByID;
friend struct CompareEntriesByString;
friend struct IdentifierReleaser;
friend IStream& operator>> (IStream& stm, CEntry& entry);
friend IStream& operator<< (IStream& stm, const CEntry& entry);
public:
DECLARE_DIAGNOSITICS();
CEntry () : m_id(0), m_cRefs(0) {}
CEntry (const std::wstring& str, MMC_STRING_ID id)
: m_str(str), m_id(id), m_cRefs(0)
{}
virtual LPCTSTR GetXMLType() {return XML_TAG_STRING_TABLE_STRING;}
virtual void Persist(CPersistor& persistor);
private:
/*
* This ctor is only used by CStringTable when reconstructing
* the entry from a file.
*/
CEntry (const std::wstring& str, MMC_STRING_ID id, DWORD cRefs)
: m_str(str) , m_id(id), m_cRefs(cRefs)
{}
private:
bool operator< (const LPCWSTR psz) const
{ return (m_str < psz); }
bool operator< (const CEntry& other) const
{ return (m_str < other.m_str); }
bool operator== (const LPCWSTR psz) const
{ return (m_str == psz); }
bool operator== (const CEntry& other) const
{ return (m_str == other.m_str); }
//private:
public: // temp!
std::wstring m_str;
MMC_STRING_ID m_id;
DWORD m_cRefs;
};
struct CompareEntriesByID :
public std::binary_function<const CEntry&, const CEntry&, bool>
{
bool operator() (const CEntry& entry1, const CEntry& entry2) const
{ return (entry1.m_id < entry2.m_id); }
};
struct CompareEntriesByString :
public std::binary_function<const CEntry&, const CEntry&, bool>
{
bool operator() (const CEntry& entry1, const CEntry& entry2) const
{ return (entry1 < entry2); }
};
struct IdentifierReleaser :
public std::unary_function<CEntry&, bool>
{
IdentifierReleaser (CStringIDPool& pool) : m_pool (pool) {}
bool operator() (CEntry& entry) const
{ return (m_pool.Release (entry.m_id)); }
private:
CStringIDPool& m_pool;
};
/*
* Because the string and ID indexes map their keys to CEntry
* pointers, we must use a collection that doesn't move its
* elements once they're inserted. The only STL collection
* that meets this requirement is a list.
*/
typedef std::list<CEntry> EntryList;
typedef XMLListCollectionWrap<EntryList> CStringTable_base;
class CStringTable : public CStringTable_base
{
friend IStream& operator>> (IStream& stm, CStringTable& entry);
friend IStream& operator<< (IStream& stm, const CStringTable& entry);
public:
DECLARE_DIAGNOSITICS();
CStringTable (CStringIDPool* pIDPool);
CStringTable (CStringIDPool* pIDPool, IStream& stm);
~CStringTable ();
CStringTable (const CStringTable& other);
CStringTable& operator= (const CStringTable& other);
/*
* IStringTable methods. Note that object doesn't implement
* IStringTable, because IUnknown isn't implemented.
*/
STDMETHOD(AddString) (LPCOLESTR pszAdd, MMC_STRING_ID* pID);
STDMETHOD(GetString) (MMC_STRING_ID id, ULONG cchBuffer, LPOLESTR lpBuffer, ULONG* pcchOut) const;
STDMETHOD(GetStringLength) (MMC_STRING_ID id, ULONG* pcchString) const;
STDMETHOD(DeleteString) (MMC_STRING_ID id);
STDMETHOD(DeleteAllStrings) ();
STDMETHOD(FindString) (LPCOLESTR pszFind, MMC_STRING_ID* pID) const;
STDMETHOD(Enumerate) (IEnumString** ppEnum) const;
size_t size() const
{ return (m_Entries.size()); }
virtual void Persist(CPersistor& persistor)
{
CStringTable_base::Persist(persistor);
if (persistor.IsLoading())
IndexAllEntries ();
}
SC ScCollectInUseIDs (CStringIDPool::RangeList& l) const;
private:
void IndexAllEntries ()
{ IndexEntries (m_Entries.begin(), m_Entries.end()); }
void IndexEntries (EntryList::iterator first, EntryList::iterator last)
{
for (; first != last; ++first)
IndexEntry (first);
}
void IndexEntry (EntryList::iterator);
typedef std::map<std::wstring, EntryList::iterator> StringToEntryMap;
typedef std::map<MMC_STRING_ID, EntryList::iterator> IDToEntryMap;
EntryList::iterator LookupEntryByString (const std::wstring&) const;
EntryList::iterator LookupEntryByID (MMC_STRING_ID) const;
EntryList::iterator FindInsertionPointForEntry (const CEntry& entry) const;
#ifdef DBG
static void AssertValid (const CStringTable* pTable);
#define ASSERT_VALID_(p) do { AssertValid(p); } while(0)
#else
#define ASSERT_VALID_(p) ((void) 0)
#endif
private:
EntryList m_Entries;
StringToEntryMap m_StringIndex;
IDToEntryMap m_IDIndex;
CStringIDPool* m_pIDPool;
};
extern const CLSID CLSID_MMC;
/*+-------------------------------------------------------------------------*
* class CLSIDToStringTableMap
*
*
* PURPOSE: stl::map derived class that maps snapin_clsid to stringtable
* and supports XML persistence of the map collection
*
* NOTE: Throws exceptions!
*+-------------------------------------------------------------------------*/
typedef std::map<CLSID, CStringTable> ST_base;
class CLSIDToStringTableMap : public XMLMapCollection<ST_base>
{
public:
// this method is provided as alternative to Persist, whic allows
// to cache parameter to be used to create new string tables
void PersistSelf(CStringIDPool *pIDPool, CPersistor& persistor)
{
m_pIDPersistPool = pIDPool;
persistor.Persist(*this, NULL);
}
protected:
// XML persistence implementation
virtual LPCTSTR GetXMLType() {return XML_TAG_STRING_TABLE_MAP;}
virtual void OnNewElement(CPersistor& persistKey,CPersistor& persistVal)
{
CLSID key;
ZeroMemory(&key,sizeof(key));
persistKey.Persist(key);
CStringTable val(m_pIDPersistPool);
persistVal.Persist(val);
insert(ST_base::value_type(key,val));
}
private:
CStringIDPool *m_pIDPersistPool;
};
typedef CLSIDToStringTableMap::value_type TableMapValue;
class CMasterStringTable : public IStringTablePrivate, public CComObjectRoot, public CXMLObject
{
friend IStorage& operator>> (IStorage& stg, CMasterStringTable& mst);
friend IStorage& operator<< (IStorage& stg, const CMasterStringTable& mst);
public:
DECLARE_DIAGNOSITICS();
CMasterStringTable ();
~CMasterStringTable ();
public:
DEFINE_XML_TYPE(XML_TAG_MMC_STRING_TABLE);
virtual void Persist(CPersistor& persistor);
SC ScPurgeUnusedStrings();
public:
/*
* ATL COM map
*/
BEGIN_COM_MAP (CMasterStringTable)
COM_INTERFACE_ENTRY (IStringTablePrivate)
END_COM_MAP ()
/*
* IStringTablePrivate methods
*/
STDMETHOD(AddString) (LPCOLESTR pszAdd, MMC_STRING_ID* pID, const CLSID* pclsid);
STDMETHOD(GetString) (MMC_STRING_ID id, ULONG cchBuffer, LPOLESTR lpBuffer, ULONG* pcchOut, const CLSID* pclsid);
STDMETHOD(GetStringLength) (MMC_STRING_ID id, ULONG* pcchString, const CLSID* pclsid);
STDMETHOD(DeleteString) (MMC_STRING_ID id, const CLSID* pclsid);
STDMETHOD(DeleteAllStrings) (const CLSID* pclsid);
STDMETHOD(FindString) (LPCOLESTR pszFind, MMC_STRING_ID* pID, const CLSID* pclsid);
STDMETHOD(Enumerate) (IEnumString** ppEnum, const CLSID* pclsid);
/*
* Shorthand into IStringTablePrivate (simulating a default parameter)
*/
STDMETHOD(AddString) (LPCOLESTR pszAdd, MMC_STRING_ID* pID)
{ return (AddString (pszAdd, pID, &CLSID_MMC)); }
STDMETHOD(GetString) (MMC_STRING_ID id, ULONG cchBuffer, LPOLESTR lpBuffer, ULONG* pcchOut)
{ return (GetString (id, cchBuffer, lpBuffer, pcchOut, &CLSID_MMC)); }
STDMETHOD(GetStringLength) (MMC_STRING_ID id, ULONG* pcchString)
{ return (GetStringLength (id, pcchString, &CLSID_MMC)); }
STDMETHOD(DeleteString) (MMC_STRING_ID id)
{ return (DeleteString (id, &CLSID_MMC)); }
STDMETHOD(DeleteAllStrings) ()
{ return (DeleteAllStrings (&CLSID_MMC)); }
STDMETHOD(FindString) (LPCOLESTR pszFind, MMC_STRING_ID* pID)
{ return (FindString (pszFind, pID, &CLSID_MMC)); }
STDMETHOD(Enumerate) (IEnumString** ppEnum)
{ return (Enumerate (ppEnum, &CLSID_MMC)); }
private:
CStringTable* LookupStringTableByCLSID (const CLSID* pclsid) const;
SC ScGenerateIDPool ();
private:
CStringIDPool m_IDPool;
CLSIDToStringTableMap m_TableMap;
static const WCHAR s_pszIDPoolStream[];
static const WCHAR s_pszStringsStream[];
};
class CStringEnumerator : public IEnumString, public CComObjectRoot
{
public:
CStringEnumerator ();
~CStringEnumerator ();
public:
/*
* ATL COM map
*/
BEGIN_COM_MAP (CStringEnumerator)
COM_INTERFACE_ENTRY (IEnumString)
END_COM_MAP ()
/*
* IEnumString methods
*/
STDMETHOD(Next) (ULONG celt, LPOLESTR *rgelt, ULONG *pceltFetched);
STDMETHOD(Skip) (ULONG celt);
STDMETHOD(Reset) ();
STDMETHOD(Clone) (IEnumString **ppenum);
static HRESULT CreateInstanceWrapper (
CComObject<CStringEnumerator>** ppEnumObject,
IEnumString** ppEnumIface);
bool Init (const EntryList& entries);
private:
typedef std::vector<std::wstring> StringVector;
StringVector m_Strings;
size_t m_cStrings;
size_t m_nCurrentIndex;
};
IStorage& operator>> (IStorage& stg, CMasterStringTable& mst);
IStorage& operator<< (IStorage& stg, const CMasterStringTable& mst);
IStorage& operator>> (IStorage& stg, CComObject<CMasterStringTable>& mst);
IStorage& operator<< (IStorage& stg, const CComObject<CMasterStringTable>& mst);
IStream& operator>> (IStream& stm, CStringTable& st);
IStream& operator<< (IStream& stm, const CStringTable& st);
IStream& operator>> (IStream& stm, CEntry& entry);
IStream& operator<< (IStream& stm, const CEntry& entry);
template<class T>
IStream& operator>> (IStream& stm, CIdentifierPool<T>& pool);
template<class T>
IStream& operator<< (IStream& stm, const CIdentifierPool<T>& pool);
#include "strtable.inl"
#endif /* STRTABLE_H */