Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 192 insertions, 0 deletions

diff --git a/ucb/source/ucp/file/filrec.cxx b/ucb/source/ucp/file/filrec.cxx
new file mode 100644
index 000000000..5af520bc3
--- /dev/null
+++ b/ucb/source/ucp/file/filrec.cxx
@@ -0,0 +1,192 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+
+#include "filrec.hxx"
+
+namespace fileaccess {
+
+void ReconnectingFile::disconnect()
+{
+    m_aFile.close();
+    m_bDisconnect = true;
+}
+
+bool ReconnectingFile::reconnect()
+{
+    bool bResult = false;
+    if ( m_bFlagsSet )
+    {
+        disconnect();
+        if ( m_aFile.open( m_nFlags ) == ::osl::FileBase::E_None
+          || m_aFile.open( osl_File_OpenFlag_Read ) == ::osl::FileBase::E_None )
+        {
+            m_bDisconnect = false;
+            bResult = 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 & osl_File_OpenFlag_Create )
+            m_nFlags = (uFlags & ( ~osl_File_OpenFlag_Create )) | osl_File_OpenFlag_Write;
+        else
+            m_nFlags = uFlags;
+
+        m_bFlagsSet = true;
+    }
+
+    return nResult;
+}
+
+::osl::FileBase::RC ReconnectingFile::close()
+{
+    m_nFlags = 0;
+    m_bFlagsSet = false;
+    m_bDisconnect = 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 == osl_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
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */