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If not, see * * for a copy of the LGPLv3 License. * ************************************************************************/ // no include "precompiled_tools.hxx" because this file is included in strmsys.cxx /* Todo: StreamMode <-> AllocateMemory */ #include #include #include #include #include #include // class FileBase #include using namespace osl; // ----------------------------------------------------------------------- // -------------- // - StreamData - // -------------- class StreamData { public: HANDLE hFile; StreamData() { hFile = 0; } }; // ----------------------------------------------------------------------- static sal_uIntPtr GetSvError( DWORD nWntError ) { static struct { DWORD wnt; sal_uIntPtr sv; } errArr[] = { { ERROR_SUCCESS, SVSTREAM_OK }, { ERROR_ACCESS_DENIED, SVSTREAM_ACCESS_DENIED }, { ERROR_ACCOUNT_DISABLED, SVSTREAM_ACCESS_DENIED }, { ERROR_ACCOUNT_EXPIRED, SVSTREAM_ACCESS_DENIED }, { ERROR_ACCOUNT_RESTRICTION, SVSTREAM_ACCESS_DENIED }, { ERROR_ATOMIC_LOCKS_NOT_SUPPORTED, SVSTREAM_INVALID_PARAMETER }, { ERROR_BAD_PATHNAME, SVSTREAM_PATH_NOT_FOUND }, // Filename too long { ERROR_BUFFER_OVERFLOW, SVSTREAM_INVALID_PARAMETER }, { ERROR_DIRECTORY, SVSTREAM_INVALID_PARAMETER }, { ERROR_DRIVE_LOCKED, SVSTREAM_LOCKING_VIOLATION }, { ERROR_FILE_NOT_FOUND, SVSTREAM_FILE_NOT_FOUND }, { ERROR_FILENAME_EXCED_RANGE, SVSTREAM_INVALID_PARAMETER }, { ERROR_INVALID_ACCESS, SVSTREAM_INVALID_ACCESS }, { ERROR_INVALID_DRIVE, SVSTREAM_PATH_NOT_FOUND }, { ERROR_INVALID_HANDLE, SVSTREAM_INVALID_HANDLE }, { ERROR_INVALID_NAME, SVSTREAM_PATH_NOT_FOUND }, { ERROR_INVALID_PARAMETER, SVSTREAM_INVALID_PARAMETER }, { ERROR_IS_SUBST_PATH, SVSTREAM_INVALID_PARAMETER }, { ERROR_IS_SUBST_TARGET, SVSTREAM_INVALID_PARAMETER }, { ERROR_LOCK_FAILED, SVSTREAM_LOCKING_VIOLATION }, { ERROR_LOCK_VIOLATION, SVSTREAM_LOCKING_VIOLATION }, { ERROR_NEGATIVE_SEEK, SVSTREAM_SEEK_ERROR }, { ERROR_PATH_NOT_FOUND, SVSTREAM_PATH_NOT_FOUND }, { ERROR_READ_FAULT, SVSTREAM_READ_ERROR }, { ERROR_SEEK, SVSTREAM_SEEK_ERROR }, { ERROR_SEEK_ON_DEVICE, SVSTREAM_SEEK_ERROR }, { ERROR_SHARING_BUFFER_EXCEEDED,SVSTREAM_SHARE_BUFF_EXCEEDED }, { ERROR_SHARING_PAUSED, SVSTREAM_SHARING_VIOLATION }, { ERROR_SHARING_VIOLATION, SVSTREAM_SHARING_VIOLATION }, { ERROR_TOO_MANY_OPEN_FILES, SVSTREAM_TOO_MANY_OPEN_FILES }, { ERROR_WRITE_FAULT, SVSTREAM_WRITE_ERROR }, { ERROR_WRITE_PROTECT, SVSTREAM_ACCESS_DENIED }, { ERROR_DISK_FULL, SVSTREAM_DISK_FULL }, { (DWORD)0xFFFFFFFF, SVSTREAM_GENERALERROR } }; sal_uIntPtr nRetVal = SVSTREAM_GENERALERROR; // Standardfehler int i=0; do { if( errArr[i].wnt == nWntError ) { nRetVal = errArr[i].sv; break; } i++; } while( errArr[i].wnt != (DWORD)0xFFFFFFFF ); return nRetVal; } /************************************************************************* |* |* SvFileStream::SvFileStream() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 17.06.94 |* Letzte Aenderung TPF 15.07.98 |* *************************************************************************/ SvFileStream::SvFileStream( const String& rFileName, StreamMode nMode ) { bIsOpen = sal_False; nLockCounter = 0; bIsWritable = sal_False; pInstanceData = new StreamData; SetBufferSize( 8192 ); // convert URL to SystemPath, if necessary ::rtl::OUString aFileName, aNormPath; if ( FileBase::getSystemPathFromFileURL( rFileName, aFileName ) != FileBase::E_None ) aFileName = rFileName; Open( aFileName, nMode ); } /************************************************************************* |* |* SvFileStream::SvFileStream() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 22.11.94 |* Letzte Aenderung TPF 15.07.98 |* *************************************************************************/ SvFileStream::SvFileStream() { bIsOpen = sal_False; nLockCounter = 0; bIsWritable = sal_False; pInstanceData = new StreamData; SetBufferSize( 8192 ); } /************************************************************************* |* |* SvFileStream::~SvFileStream() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 14.06.94 |* Letzte Aenderung OV 14.06.94 |* *************************************************************************/ SvFileStream::~SvFileStream() { Close(); if (pInstanceData) delete pInstanceData; } /************************************************************************* |* |* SvFileStream::GetFileHandle() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 14.06.94 |* Letzte Aenderung OV 14.06.94 |* *************************************************************************/ sal_uIntPtr SvFileStream::GetFileHandle() const { return (sal_uIntPtr)pInstanceData->hFile; } /************************************************************************* |* |* SvFileStream::IsA() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 14.06.94 |* Letzte Aenderung OV 14.06.94 |* *************************************************************************/ sal_uInt16 SvFileStream::IsA() const { return ID_FILESTREAM; } /************************************************************************* |* |* SvFileStream::GetData() |* |* Beschreibung STREAM.SDW, Prueft nicht Eof; IsEof danach rufbar |* Ersterstellung OV 15.06.94 |* Letzte Aenderung TPF 15.07.98 |* *************************************************************************/ sal_uIntPtr SvFileStream::GetData( void* pData, sal_uIntPtr nSize ) { DWORD nCount = 0; if( IsOpen() ) { bool bResult = ReadFile(pInstanceData->hFile,(LPVOID)pData,nSize,&nCount,NULL); if( !bResult ) { sal_uIntPtr nTestError = GetLastError(); SetError(::GetSvError( nTestError ) ); } } return (DWORD)nCount; } /************************************************************************* |* |* SvFileStream::PutData() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 15.06.94 |* Letzte Aenderung TPF 15.07.98 |* *************************************************************************/ sal_uIntPtr SvFileStream::PutData( const void* pData, sal_uIntPtr nSize ) { DWORD nCount = 0; if( IsOpen() ) { if(!WriteFile(pInstanceData->hFile,(LPVOID)pData,nSize,&nCount,NULL)) SetError(::GetSvError( GetLastError() ) ); } return nCount; } /************************************************************************* |* |* SvFileStream::SeekPos() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 15.06.94 |* Letzte Aenderung TPF 15.07.98 |* *************************************************************************/ sal_uIntPtr SvFileStream::SeekPos( sal_uIntPtr nPos ) { DWORD nNewPos = 0; if( IsOpen() ) { if( nPos != STREAM_SEEK_TO_END ) // 64-Bit files werden nicht unterstuetzt nNewPos=SetFilePointer(pInstanceData->hFile,nPos,NULL,FILE_BEGIN); else nNewPos=SetFilePointer(pInstanceData->hFile,0L,NULL,FILE_END); if( nNewPos == 0xFFFFFFFF ) { SetError(::GetSvError( GetLastError() ) ); nNewPos = 0L; } } else SetError( SVSTREAM_GENERALERROR ); return (sal_uIntPtr)nNewPos; } /************************************************************************* |* |* SvFileStream::Tell() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 15.06.94 |* Letzte Aenderung OV 15.06.94 |* *************************************************************************/ /* sal_uIntPtr SvFileStream::Tell() { sal_uIntPtr nPos = 0L; if( IsOpen() ) { DWORD nPos; nPos = SetFilePointer(pInstanceData->hFile,0L,NULL,FILE_CURRENT); if( nPos = 0xFFFFFFFF ) { SetError( ::GetSvError( GetLastError() ) ); nPos = 0L; } } return nPos; } */ /************************************************************************* |* |* SvFileStream::FlushData() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 15.06.94 |* Letzte Aenderung TPF 15.07.98 |* *************************************************************************/ void SvFileStream::FlushData() { if( IsOpen() ) { if( !FlushFileBuffers(pInstanceData->hFile) ) SetError(::GetSvError(GetLastError())); } } /************************************************************************* |* |* SvFileStream::LockRange() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 15.06.94 |* Letzte Aenderung TPF 15.07.98 |* *************************************************************************/ sal_Bool SvFileStream::LockRange( sal_uIntPtr nByteOffset, sal_uIntPtr nBytes ) { bool bRetVal = false; if( IsOpen() ) { bRetVal = ::LockFile(pInstanceData->hFile,nByteOffset,0L,nBytes,0L ); if( !bRetVal ) SetError(::GetSvError(GetLastError())); } return bRetVal; } /************************************************************************* |* |* SvFileStream::UnlockRange() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 15.06.94 |* Letzte Aenderung TPF 15.07.98 |* *************************************************************************/ sal_Bool SvFileStream::UnlockRange( sal_uIntPtr nByteOffset, sal_uIntPtr nBytes ) { bool bRetVal = false; if( IsOpen() ) { bRetVal = ::UnlockFile(pInstanceData->hFile,nByteOffset,0L,nBytes,0L ); if( !bRetVal ) SetError(::GetSvError(GetLastError())); } return bRetVal; } /************************************************************************* |* |* SvFileStream::LockFile() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 15.06.94 |* Letzte Aenderung OV 15.06.94 |* *************************************************************************/ sal_Bool SvFileStream::LockFile() { sal_Bool bRetVal = sal_False; if( !nLockCounter ) { if( LockRange( 0L, LONG_MAX ) ) { nLockCounter = 1; bRetVal = sal_True; } } else { nLockCounter++; bRetVal = sal_True; } return bRetVal; } /************************************************************************* |* |* SvFileStream::UnlockFile() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 15.06.94 |* Letzte Aenderung OV 15.06.94 |* *************************************************************************/ sal_Bool SvFileStream::UnlockFile() { sal_Bool bRetVal = sal_False; if( nLockCounter > 0) { if( nLockCounter == 1) { if( UnlockRange( 0L, LONG_MAX ) ) { nLockCounter = 0; bRetVal = sal_True; } } else { nLockCounter--; bRetVal = sal_True; } } return bRetVal; } /************************************************************************* |* |* SvFileStream::Open() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 15.06.94 |* Letzte Aenderung TPF 15.07.98 |* *************************************************************************/ /* NOCREATE TRUNC NT-Action ---------------------------------------------- 0 (Create) 0 OPEN_ALWAYS 0 (Create) 1 CREATE_ALWAYS 1 0 OPEN_EXISTING 1 1 TRUNCATE_EXISTING */ void SvFileStream::Open( const String& rFilename, StreamMode nMode ) { String aParsedFilename(rFilename); SetLastError( ERROR_SUCCESS ); Close(); SvStream::ClearBuffer(); eStreamMode = nMode; eStreamMode &= ~STREAM_TRUNC; // beim ReOpen nicht cutten // !!! NoOp: Ansonsten ToAbs() verwendern // !!! DirEntry aDirEntry( rFilename ); // !!! aFilename = aDirEntry.GetFull(); aFilename = aParsedFilename; #ifdef BOOTSTRAP ByteString aFileNameA( aFilename, gsl_getSystemTextEncoding()); #else ByteString aFileNameA( aFilename, osl_getThreadTextEncoding()); FSysRedirector::DoRedirect( aFilename ); #endif SetLastError( ERROR_SUCCESS ); // ggf. durch Redirector geaendert! /* #ifdef DBG_UTIL String aTraceStr( "SvFileStream::Open(): " ); aTraceStr += aFilename; DBG_TRACE( aTraceStr ); #endif */ DWORD nOpenAction; DWORD nShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE; DWORD nAccessMode = 0L; UINT nOldErrorMode = SetErrorMode( SEM_FAILCRITICALERRORS|SEM_NOOPENFILEERRORBOX ); if( nMode & STREAM_SHARE_DENYREAD) nShareMode &= ~FILE_SHARE_READ; if( nMode & STREAM_SHARE_DENYWRITE) nShareMode &= ~FILE_SHARE_WRITE; if( nMode & STREAM_SHARE_DENYALL) nShareMode = 0; if( (nMode & STREAM_READ) ) nAccessMode |= GENERIC_READ; if( (nMode & STREAM_WRITE) ) nAccessMode |= GENERIC_WRITE; if( nAccessMode == GENERIC_READ ) // ReadOnly ? nMode |= STREAM_NOCREATE; // wenn ja, nicht erzeugen // Zuordnung siehe obige Wahrheitstafel if( !(nMode & STREAM_NOCREATE) ) { if( nMode & STREAM_TRUNC ) nOpenAction = CREATE_ALWAYS; else nOpenAction = OPEN_ALWAYS; } else { if( nMode & STREAM_TRUNC ) nOpenAction = TRUNCATE_EXISTING; else nOpenAction = OPEN_EXISTING; } pInstanceData->hFile = CreateFile( aFileNameA.GetBuffer(), nAccessMode, nShareMode, (LPSECURITY_ATTRIBUTES)NULL, nOpenAction, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS, (HANDLE) NULL ); if( pInstanceData->hFile!=INVALID_HANDLE_VALUE && ( // Hat Create Always eine existierende Datei ueberschrieben ? GetLastError() == ERROR_ALREADY_EXISTS || // Hat Open Always eine neue Datei angelegt ? GetLastError() == ERROR_FILE_NOT_FOUND )) { // wenn ja, dann alles OK if( nOpenAction == OPEN_ALWAYS || nOpenAction == CREATE_ALWAYS ) SetLastError( ERROR_SUCCESS ); } // Bei Fehler pruefen, ob wir lesen duerfen if( (pInstanceData->hFile==INVALID_HANDLE_VALUE) && (nAccessMode & GENERIC_WRITE)) { sal_uIntPtr nErr = ::GetSvError( GetLastError() ); if(nErr==SVSTREAM_ACCESS_DENIED || nErr==SVSTREAM_SHARING_VIOLATION) { nMode &= (~STREAM_WRITE); nAccessMode = GENERIC_READ; // OV, 28.1.97: Win32 setzt die Datei auf 0-Laenge, wenn // die Openaction CREATE_ALWAYS ist!!!! nOpenAction = OPEN_EXISTING; SetLastError( ERROR_SUCCESS ); pInstanceData->hFile = CreateFile( aFileNameA.GetBuffer(), GENERIC_READ, nShareMode, (LPSECURITY_ATTRIBUTES)NULL, nOpenAction, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS, (HANDLE) NULL ); if( GetLastError() == ERROR_ALREADY_EXISTS ) SetLastError( ERROR_SUCCESS ); } } if( GetLastError() != ERROR_SUCCESS ) { bIsOpen = sal_False; SetError(::GetSvError( GetLastError() ) ); } else { bIsOpen = sal_True; // pInstanceData->bIsEof = sal_False; if( nAccessMode & GENERIC_WRITE ) bIsWritable = sal_True; } SetErrorMode( nOldErrorMode ); } /************************************************************************* |* |* SvFileStream::ReOpen() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 15.06.94 |* Letzte Aenderung OV 15.06.94 |* *************************************************************************/ void SvFileStream::ReOpen() { if( !bIsOpen && aFilename.Len() ) Open( aFilename, eStreamMode ); } /************************************************************************* |* |* SvFileStream::Close() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 15.06.94 |* Letzte Aenderung TPF 15.07.98 |* *************************************************************************/ void SvFileStream::Close() { if( IsOpen() ) { if( nLockCounter ) { nLockCounter = 1; UnlockFile(); } Flush(); CloseHandle( pInstanceData->hFile ); } bIsOpen = sal_False; nLockCounter= 0; bIsWritable = sal_False; SvStream::ClearBuffer(); SvStream::ClearError(); } /************************************************************************* |* |* SvFileStream::ResetError() |* |* Beschreibung STREAM.SDW; Setzt Filepointer auf Dateianfang |* Ersterstellung OV 15.06.94 |* Letzte Aenderung OV 15.06.94 |* *************************************************************************/ void SvFileStream::ResetError() { SvStream::ClearError(); } /************************************************************************* |* |* SvFileStream::SetSize() |* |* Beschreibung STREAM.SDW |* Ersterstellung OV 19.10.95 |* Letzte Aenderung TPF 15.07.98 |* *************************************************************************/ void SvFileStream::SetSize( sal_uIntPtr nSize ) { if( IsOpen() ) { int bError = sal_False; HANDLE hFile = pInstanceData->hFile; sal_uIntPtr nOld = SetFilePointer( hFile, 0L, NULL, FILE_CURRENT ); if( nOld != 0xffffffff ) { if( SetFilePointer(hFile,nSize,NULL,FILE_BEGIN ) != 0xffffffff) { bool bSucc = SetEndOfFile( hFile ); if( !bSucc ) bError = sal_True; } if( SetFilePointer( hFile,nOld,NULL,FILE_BEGIN ) == 0xffffffff) bError = sal_True; } if( bError ) SetError(::GetSvError( GetLastError() ) ); } }