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-rw-r--r--ucb/source/ucp/file/filstr.cxx297
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diff --git a/ucb/source/ucp/file/filstr.cxx b/ucb/source/ucp/file/filstr.cxx
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+/* -*- 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 <sal/config.h>
+
+#include <com/sun/star/io/BufferSizeExceededException.hpp>
+#include <com/sun/star/io/IOException.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <osl/diagnose.h>
+#include "filstr.hxx"
+#include "filerror.hxx"
+
+using namespace fileaccess;
+using namespace com::sun::star;
+
+#if OSL_DEBUG_LEVEL > 0
+#define THROW_WHERE SAL_WHERE
+#else
+#define THROW_WHERE ""
+#endif
+
+/******************************************************************************/
+/* */
+/* XStream_impl implementation */
+/* */
+/******************************************************************************/
+
+XStream_impl::XStream_impl( const OUString& aUncPath, bool bLock )
+ : m_bInputStreamCalled( false ),
+ m_bOutputStreamCalled( false ),
+ m_aFile( aUncPath ),
+ m_nErrorCode( TASKHANDLER_NO_ERROR ),
+ m_nMinorErrorCode( TASKHANDLER_NO_ERROR )
+{
+ sal_uInt32 nFlags = ( osl_File_OpenFlag_Read | osl_File_OpenFlag_Write );
+ if ( !bLock )
+ nFlags |= osl_File_OpenFlag_NoLock;
+
+ osl::FileBase::RC err = m_aFile.open( nFlags );
+ if( err != osl::FileBase::E_None )
+ {
+ m_nIsOpen = false;
+ m_aFile.close();
+
+ m_nErrorCode = TASKHANDLING_OPEN_FOR_STREAM;
+ m_nMinorErrorCode = err;
+ }
+ else
+ m_nIsOpen = true;
+}
+
+
+XStream_impl::~XStream_impl()
+{
+ try
+ {
+ closeStream();
+ }
+ catch (const io::IOException&)
+ {
+ OSL_FAIL("unexpected situation");
+ }
+ catch (const uno::RuntimeException&)
+ {
+ OSL_FAIL("unexpected situation");
+ }
+}
+
+
+uno::Reference< io::XInputStream > SAL_CALL
+XStream_impl::getInputStream( )
+{
+ {
+ std::scoped_lock aGuard( m_aMutex );
+ m_bInputStreamCalled = true;
+ }
+ return uno::Reference< io::XInputStream >( this );
+}
+
+
+uno::Reference< io::XOutputStream > SAL_CALL
+XStream_impl::getOutputStream( )
+{
+ {
+ std::scoped_lock aGuard( m_aMutex );
+ m_bOutputStreamCalled = true;
+ }
+ return uno::Reference< io::XOutputStream >( this );
+}
+
+
+void SAL_CALL XStream_impl::truncate()
+{
+ if (osl::FileBase::E_None != m_aFile.setSize(0))
+ throw io::IOException( THROW_WHERE );
+
+ if (osl::FileBase::E_None != m_aFile.setPos(osl_Pos_Absolut,sal_uInt64(0)))
+ throw io::IOException( THROW_WHERE );
+}
+
+
+// XStream_impl private non interface methods
+
+
+sal_Int32 SAL_CALL
+XStream_impl::readBytes(
+ uno::Sequence< sal_Int8 >& aData,
+ sal_Int32 nBytesToRead )
+{
+ if( ! m_nIsOpen )
+ throw io::IOException( THROW_WHERE );
+
+ try
+ {
+ aData.realloc(nBytesToRead);
+ }
+ catch (const std::bad_alloc&)
+ {
+ if( m_nIsOpen ) m_aFile.close();
+ throw io::BufferSizeExceededException( THROW_WHERE );
+ }
+
+ sal_uInt64 nrc(0);
+ if(m_aFile.read( aData.getArray(), sal_uInt64(nBytesToRead), nrc )
+ != osl::FileBase::E_None)
+ {
+ throw io::IOException( THROW_WHERE );
+ }
+ if (nrc != static_cast<sal_uInt64>(nBytesToRead))
+ aData.realloc(nrc);
+ return static_cast<sal_Int32>(nrc);
+}
+
+sal_Int32
+XStream_impl::readSomeBytes(
+ sal_Int8* pData,
+ sal_Int32 nBytesToRead )
+{
+ if( ! m_nIsOpen )
+ throw io::IOException( THROW_WHERE );
+
+ sal_uInt64 nrc(0);
+ if(m_aFile.read( pData, sal_uInt64(nBytesToRead), nrc )
+ != osl::FileBase::E_None)
+ {
+ throw io::IOException( THROW_WHERE );
+ }
+ return static_cast<sal_Int32>(nrc);
+}
+
+sal_Int64 SAL_CALL XStream_impl::getSomething( const css::uno::Sequence< sal_Int8 >& rIdentifier )
+{
+ if (rIdentifier == comphelper::ByteReader::getUnoTunnelId())
+ return reinterpret_cast<sal_Int64>(static_cast<comphelper::ByteReader*>(this));
+ return 0;
+}
+
+sal_Int32 SAL_CALL
+XStream_impl::readSomeBytes(
+ uno::Sequence< sal_Int8 >& aData,
+ sal_Int32 nMaxBytesToRead )
+{
+ return readBytes( aData,nMaxBytesToRead );
+}
+
+
+void SAL_CALL
+XStream_impl::skipBytes( sal_Int32 nBytesToSkip )
+{
+ m_aFile.setPos( osl_Pos_Current, sal_uInt64( nBytesToSkip ) );
+}
+
+
+sal_Int32 SAL_CALL
+XStream_impl::available()
+{
+ sal_Int64 avail = getLength() - getPosition();
+ return std::min<sal_Int64>(avail, SAL_MAX_INT32);
+}
+
+
+void SAL_CALL
+XStream_impl::writeBytes( const uno::Sequence< sal_Int8 >& aData )
+{
+ sal_uInt32 length = aData.getLength();
+ if(length)
+ {
+ sal_uInt64 nWrittenBytes(0);
+ const sal_Int8* p = aData.getConstArray();
+ if(osl::FileBase::E_None != m_aFile.write(static_cast<void const *>(p),sal_uInt64(length),nWrittenBytes) ||
+ nWrittenBytes != length )
+ throw io::IOException( THROW_WHERE );
+ }
+}
+
+
+void
+XStream_impl::closeStream()
+{
+ if( m_nIsOpen )
+ {
+ osl::FileBase::RC err = m_aFile.close();
+
+ if( err != osl::FileBase::E_None ) {
+ io::IOException ex;
+ ex.Message = "could not close file";
+ throw ex;
+ }
+
+ m_nIsOpen = false;
+ }
+}
+
+void SAL_CALL
+XStream_impl::closeInput()
+{
+ std::scoped_lock aGuard( m_aMutex );
+ m_bInputStreamCalled = false;
+
+ if( ! m_bOutputStreamCalled )
+ closeStream();
+}
+
+
+void SAL_CALL
+XStream_impl::closeOutput()
+{
+ std::scoped_lock aGuard( m_aMutex );
+ m_bOutputStreamCalled = false;
+
+ if( ! m_bInputStreamCalled )
+ closeStream();
+}
+
+
+void SAL_CALL
+XStream_impl::seek( sal_Int64 location )
+{
+ if( location < 0 )
+ throw lang::IllegalArgumentException( THROW_WHERE, uno::Reference< uno::XInterface >(), 0 );
+ if( osl::FileBase::E_None != m_aFile.setPos( osl_Pos_Absolut, sal_uInt64( location ) ) )
+ throw io::IOException( THROW_WHERE );
+}
+
+
+sal_Int64 SAL_CALL
+XStream_impl::getPosition()
+{
+ sal_uInt64 uPos;
+ if( osl::FileBase::E_None != m_aFile.getPos( uPos ) )
+ throw io::IOException( THROW_WHERE );
+ return sal_Int64( uPos );
+}
+
+sal_Int64 SAL_CALL
+XStream_impl::getLength()
+{
+ sal_uInt64 uEndPos;
+ if ( m_aFile.getSize(uEndPos) != osl::FileBase::E_None )
+ throw io::IOException( THROW_WHERE );
+ return sal_Int64( uEndPos );
+}
+
+void SAL_CALL
+XStream_impl::flush()
+{}
+
+void XStream_impl::waitForCompletion()
+{
+ // At least on UNIX, to reliably learn about any errors encountered by
+ // asynchronous NFS write operations, without closing the file directly
+ // afterwards, there appears to be no cheaper way than to call fsync:
+ if (m_nIsOpen && m_aFile.sync() != osl::FileBase::E_None) {
+ throw io::IOException(
+ "could not synchronize file to disc",
+ static_cast< OWeakObject * >(this));
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */