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#if !defined(_BCL_W32BASEUNICODESTRINGBUFFER_H_INCLUDED_)
#define _BCL_W32BASEUNICODESTRINGBUFFER_H_INCLUDED_
#pragma once
/*++
Copyright (c) 2000 Microsoft Corporation
Module Name:
bcl_w32baseunicodestringbuffer.h
Abstract:
Author:
Michael Grier (MGrier) 2/6/2002
Revision History:
--*/
#include <windows.h>
#include <bcl_inlinestring.h>
#include <bcl_unicodechartraits.h>
#include <bcl_w32common.h>
#include <bcl_vararg.h>
#include <bcl_w32unicodestringalgorithms.h>
#include <limits.h>
namespace BCL{
template <typename TBuffer, typename TCallDispositionT, typename TPublicErrorReturnTypeT>class CWin32BaseUnicodeStringBufferTraits : public BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>, public BCL::CWin32NullTerminatedUnicodeStringAlgorithms<TBuffer, TCallDispositionT>{public: typedef CWin32BaseUnicodeStringBufferTraits TThis;
friend BCL::CPureString<TThis>; friend BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>; typedef BCL::CPureString<TThis> TPureString;
typedef TCallDispositionT TCallDisposition; typedef TPublicErrorReturnTypeT TPublicErrorReturnType;
typedef CWin32StringComparisonResult TComparisonResult;
typedef BCL::CConstantPointerAndCountPair<WCHAR, SIZE_T> TConstantPair; typedef BCL::CMutablePointerAndCountPair<WCHAR, SIZE_T> TMutablePair;
typedef CWin32CaseInsensitivityData TCaseInsensitivityData; typedef SIZE_T TSizeT;
typedef CWin32MBCSToUnicodeDataIn TDecodingDataIn; typedef CWin32MBCSToUnicodeDataOut TDecodingDataOut; typedef CWin32UnicodeToMBCSDataIn TEncodingDataIn; typedef CWin32UnicodeToMBCSDataOut TEncodingDataOut;
typedef CConstantPointerAndCountPair<CHAR, SIZE_T> TConstantNonNativePair; typedef CMutablePointerAndCountPair<CHAR, SIZE_T> TMutableNonNativePair;
typedef BCL::CWin32PWSTRAllocationHelper TPWSTRAllocationHelper; typedef BCL::CWin32PSTRAllocationHelper TPSTRAllocationHelper;
using BCL::CWin32NullTerminatedUnicodeStringAlgorithms<TBuffer, TCallDispositionT>::TMutableString; using BCL::CWin32NullTerminatedUnicodeStringAlgorithms<TBuffer, TCallDispositionT>::TConstantString; using BCL::CWin32NullTerminatedUnicodeStringAlgorithms<TBuffer, TCallDispositionT>::TMutableNonNativeString; using BCL::CWin32NullTerminatedUnicodeStringAlgorithms<TBuffer, TCallDispositionT>::TConstantNonNativeString;
// exposing the things from our private base class
using BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>::CopyIntoBuffer; using BCL::CWin32NullTerminatedUnicodeStringAlgorithms<TBuffer, TCallDispositionT>::CopyIntoBuffer; using BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>::DetermineRequiredCharacters; using BCL::CWin32NullTerminatedUnicodeStringAlgorithms<TBuffer, TCallDispositionT>::DetermineRequiredCharacters;#if 0
using BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>::CopyIntoBuffer; using BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>::NullCharacter; using BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>::IsNullCharacter; using BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>::StringCchLegal; using BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>::TrimStringLengthToLegalCharacters; using BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>::AddWithOverflowCheck; using BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>::SubtractWithUnderflowCheck; using BCL::CUnicodeCharTraits<TBuffer, TCallDispositionT>::EqualStrings;#endif // 0
static inline TMutablePair & __fastcall MutableBufferPair(BCL::CBaseString *p) { return static_cast<TBuffer *>(p)->m_pair; } static inline const TConstantPair & __fastcall BufferPair(const BCL::CBaseString *p) { return static_cast<const TConstantPair &>(static_cast<const TBuffer *>(p)->m_pair); } static inline TConstantPair __fastcall GetStringPair(const BCL::CBaseString *p) { return TConstantPair(TBuffer::TTraits::GetBufferPtr(p), TBuffer::TTraits::GetStringCch(p)); } static inline TMutablePair __fastcall GetOffsetMutableBufferPair(const BCL::CBaseString *p, TSizeT cchOffset) { BCL_ASSERT(cchOffset <= TBuffer::TTraits::GetBufferCch(p)); if (cchOffset > TBuffer::TTraits::GetBufferCch(p)) cchOffset = TBuffer::TTraits::GetBufferCch(p); return TMutablePair(const_cast<TMutableString>(TBuffer::TTraits::GetBufferPtr(p)) + cchOffset, TBuffer::TTraits::GetBufferCch(p) - cchOffset); }
static inline bool __fastcall AnyAccessors(const BCL::CBaseString *p) { return (static_cast<const TBuffer *>(p)->m_cAttachedAccessors != 0); } static inline bool __fastcall NoAccessors(const BCL::CBaseString *p) { return (static_cast<const TBuffer *>(p)->m_cAttachedAccessors == 0); } static inline TCallDisposition __fastcall NoAccessorsCheck(const BCL::CBaseString *p) { if (TBuffer::TTraits::AnyAccessors(p)) { return TCallDisposition::InternalError_ObjectLocked(); } return TCallDisposition::Success(); }
static inline PCWSTR __fastcall GetBufferPtr(const BCL::CBaseString *p) { return static_cast<const TBuffer *>(p)->m_pair.GetPointer(); } static inline PWSTR __fastcall GetMutableBufferPtr(BCL::CBaseString *p) { return static_cast<TBuffer *>(p)->m_pair.GetPointer(); } static inline SIZE_T __fastcall GetBufferCch(const BCL::CBaseString *p) { return static_cast<const TBuffer *>(p)->m_pair.GetCount(); } static inline void __fastcall SetBufferPointerAndCount(BCL::CBaseString *p, PWSTR pszBuffer, SIZE_T cchBuffer) { static_cast<TBuffer *>(p)->m_pair.SetPointerAndCount(pszBuffer, cchBuffer); }
static inline SIZE_T __fastcall GetStringCch(const BCL::CBaseString *p) { return static_cast<const TBuffer *>(p)->m_cchString; }
static inline void _fastcall SetStringCch(BCL::CBaseString *p, SIZE_T cch) { BCL_ASSERT((cch == 0) || (cch < TBuffer::TTraits::GetBufferCch(p))); static_cast<TBuffer *>(p)->m_cchString = cch; if (TBuffer::TTraits::GetBufferCch(p) != 0) TBuffer::TTraits::GetMutableBufferPtr(p)[cch] = L'\0'; }
static inline void __fastcall IntegrityCheck(const BCL::CBaseString *p) { } static inline PWSTR __fastcall GetInlineBufferPtr(const BCL::CBaseString *p) { return static_cast<const TBuffer *>(p)->GetInlineBufferPtr(); } static inline SIZE_T __fastcall GetInlineBufferCch(const BCL::CBaseString *p) { return static_cast<const TBuffer *>(p)->GetInlineBufferCch(); }
static inline TCallDisposition __fastcall ReallocateBuffer(BCL::CBaseString *p, SIZE_T cch) { PWSTR psz = NULL; SIZE_T cb = (cch * sizeof(WCHAR)); TBuffer *pBuffer = static_cast<TBuffer *>(p);
if (cch != (cb / sizeof(WCHAR))) return TCallDisposition::ArithmeticOverflow();
if (pBuffer->GetBufferPtr() != NULL) { ::SetLastError(ERROR_SUCCESS);
psz = reinterpret_cast<PWSTR>( ::HeapReAlloc( ::GetProcessHeap(), 0, const_cast<PWSTR>(pBuffer->GetBufferPtr()), cb)); if (psz == NULL) { const DWORD dwLastError = ::GetLastError(); // HeapReAlloc doesn't always set last error, so we rely on this
// fact to find that the win32 last error hasn't changed from
// before to infer ERROR_OUTOFMEMORY. -mgrier 2/2/2002
if (dwLastError == ERROR_SUCCESS) return TCallDisposition::OutOfMemory(); return TCallDisposition::FromWin32Error(dwLastError); } } else { psz = reinterpret_cast<PWSTR>( ::HeapAlloc( ::GetProcessHeap(), 0, cb)); }
if (psz == NULL) return TCallDisposition::OutOfMemory();
pBuffer->SetBufferPointerAndCount(psz, cch);
return TCallDisposition::Success(); }
static inline void __fastcall DeallocateBuffer(PCWSTR psz) { if (psz != NULL) ::HeapFree(::GetProcessHeap(), 0, reinterpret_cast<PVOID>(const_cast<PWSTR>(psz))); }
static inline void __fastcall DeallocateDynamicBuffer(BCL::CBaseString *p) { static_cast<TBuffer *>(p)->DeallocateDynamicBuffer(); }
}; // class CWin32BaseUnicodeStringBufferTraits
class CWin32BaseUnicodeStringBufferAddIn{protected: inline CWin32BaseUnicodeStringBufferAddIn(PWSTR pszInitialBuffer, SIZE_T cchInitialBuffer) : m_pair(pszInitialBuffer, cchInitialBuffer), m_cchString(0), m_cAttachedAccessors(0) { }
inline static BCL::CConstantPointerAndCountPair<WCHAR, SIZE_T> PairFromPCWSTR(PCWSTR psz) { return BCL::CConstantPointerAndCountPair<WCHAR, SIZE_T>(psz, (psz == NULL) ? 0 : wcslen(psz)); } inline static BCL::CConstantPointerAndCountPair<CHAR, SIZE_T> PairFromPCSTR(PCSTR psz) { return BCL::CConstantPointerAndCountPair<CHAR, SIZE_T>(psz, (psz == NULL) ? 0 : strlen(psz)); } inline static CWin32MBCSToUnicodeDataIn ACPDecodingDataIn() { CWin32MBCSToUnicodeDataIn t; t.m_CodePage = CP_ACP; t.m_dwFlags = MB_PRECOMPOSED | MB_ERR_INVALID_CHARS; return t; } inline static CWin32UnicodeToMBCSDataIn ACPEncodingDataIn() { CWin32UnicodeToMBCSDataIn t; t.m_CodePage = CP_ACP; t.m_dwFlags = WC_NO_BEST_FIT_CHARS; return t; }
BCL::CMutablePointerAndCountPair<WCHAR, SIZE_T> m_pair; SIZE_T m_cchString; LONG m_cAttachedAccessors;};
}; // namespace BCL
#endif // !defined(_BCL_W32BASEUNICODESTRINGBUFFER_H_INCLUDED_)
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