| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the 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 |
| |