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Diffstat (limited to 'ucb/source/ucp/file/filrec.cxx')
| -rw-r--r-- | ucb/source/ucp/file/filrec.cxx | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/ucb/source/ucp/file/filrec.cxx b/ucb/source/ucp/file/filrec.cxx new file mode 100644 index 000000000000..c0e9b02ddb70 --- /dev/null +++ b/ucb/source/ucp/file/filrec.cxx @@ -0,0 +1,201 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_ucb.hxx" + +#include "filrec.hxx" + +namespace fileaccess { + +void ReconnectingFile::disconnect() +{ + m_aFile.close(); + m_bDisconnect = sal_True; +} + +sal_Bool ReconnectingFile::reconnect() +{ + sal_Bool bResult = sal_False; + if ( m_bFlagsSet ) + { + disconnect(); + if ( m_aFile.open( m_nFlags ) == ::osl::FileBase::E_None + || m_aFile.open( OpenFlag_Read ) == ::osl::FileBase::E_None ) + { + m_bDisconnect = sal_False; + bResult = sal_True; + } + } + + return bResult; +} + +::osl::FileBase::RC ReconnectingFile::open( sal_uInt32 uFlags ) +{ + ::osl::FileBase::RC nResult = m_aFile.open( uFlags ); + if ( nResult == ::osl::FileBase::E_None ) + { + if ( uFlags & OpenFlag_Create ) + m_nFlags = (uFlags & ( ~OpenFlag_Create )) | OpenFlag_Write; + else + m_nFlags = uFlags; + + m_bFlagsSet = sal_True; + } + + return nResult; +} + +::osl::FileBase::RC ReconnectingFile::close() +{ + m_nFlags = 0; + m_bFlagsSet = sal_False; + m_bDisconnect = sal_False; + + return m_aFile.close(); +} + +::osl::FileBase::RC ReconnectingFile::setPos( sal_uInt32 uHow, sal_Int64 uPos ) +{ + ::osl::FileBase::RC nRes = ::osl::FileBase::E_NETWORK; + + if ( uHow == Pos_Absolut && uPos > 0 ) + { + if ( m_bDisconnect ) + { + if ( reconnect() ) + nRes = m_aFile.setPos( uHow, uPos ); + } + else + { + // E_INVAL error code means in this case that + // the file handler is invalid + nRes = m_aFile.setPos( uHow, uPos ); + if ( ( nRes == ::osl::FileBase::E_NETWORK + || nRes == ::osl::FileBase::E_INVAL ) + && reconnect() ) + nRes = m_aFile.setPos( uHow, uPos ); + } + } + else + { + if ( !m_bDisconnect ) + nRes = m_aFile.setPos( uHow, uPos ); + } + + return nRes; +} + +::osl::FileBase::RC ReconnectingFile::getPos( sal_uInt64& uPos ) +{ + if ( m_bDisconnect ) + return ::osl::FileBase::E_NETWORK; + + return m_aFile.getPos( uPos ); +} + +::osl::FileBase::RC ReconnectingFile::setSize( sal_uInt64 uSize ) +{ + ::osl::FileBase::RC nRes = ::osl::FileBase::E_NETWORK; + + if ( uSize == 0 ) + { + if ( m_bDisconnect ) + { + if ( reconnect() ) + nRes = m_aFile.setSize( uSize ); + } + else + { + // E_INVAL error code means in this case that + // the file handler is invalid + nRes = m_aFile.setSize( uSize ); + if ( ( nRes == ::osl::FileBase::E_NETWORK + || nRes == ::osl::FileBase::E_INVAL ) + && reconnect() ) + nRes = m_aFile.setSize( uSize ); + } + } + else + { + if ( !m_bDisconnect ) + nRes = m_aFile.setSize( uSize ); + } + + return nRes; +} + +::osl::FileBase::RC ReconnectingFile::getSize( sal_uInt64 &rSize ) +{ + ::osl::FileBase::RC nRes = ::osl::FileBase::E_NETWORK; + + if ( !m_bDisconnect ) + nRes = m_aFile.getSize( rSize ); + + // E_INVAL error code means in this case that + // the file handler is invalid + if ( ( nRes == ::osl::FileBase::E_NETWORK + || nRes == ::osl::FileBase::E_INVAL ) + && reconnect() ) + { + nRes = m_aFile.getSize( rSize ); + + // the repairing should be disconnected, since the position might be wrong + // but the result should be retrieved + disconnect(); + } + + return nRes; +} + +::osl::FileBase::RC ReconnectingFile::read( void *pBuffer, sal_uInt64 uBytesRequested, sal_uInt64& rBytesRead ) +{ + if ( m_bDisconnect ) + return ::osl::FileBase::E_NETWORK; + + return m_aFile.read( pBuffer, uBytesRequested, rBytesRead ); +} + +::osl::FileBase::RC ReconnectingFile::write(const void *pBuffer, sal_uInt64 uBytesToWrite, sal_uInt64& rBytesWritten) +{ + if ( m_bDisconnect ) + return ::osl::FileBase::E_NETWORK; + + return m_aFile.write( pBuffer, uBytesToWrite, rBytesWritten ); +} + +::osl::FileBase::RC ReconnectingFile::sync() const +{ + if ( m_bDisconnect ) + return ::osl::FileBase::E_NETWORK; + + return m_aFile.sync(); +} + +} // namespace fileaccess + |