/* -*- 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 .
*/
namespace com::sun::star::io
{ class XDataInputStream;
} namespace com::sun::star::io
{ class XDataOutputStream;
} namespace com::sun::star::io
{ class XMarkableStream;
}
namespace comphelper
{ /** implements handling for compatibly reading/writing data from/into an input/output stream. data written in a block secured by this class should be readable by older versions which use the same mechanism.
*/
class UNLESS_MERGELIBS(COMPHELPER_DLLPUBLIC) OStreamSection
{
css::uno::Reference<css::io::XMarkableStream> m_xMarkStream;
css::uno::Reference<css::io::XDataInputStream> m_xInStream;
css::uno::Reference<css::io::XDataOutputStream> m_xOutStream;
sal_Int32 m_nBlockStart;
sal_Int32 m_nBlockLen;
public: /** starts reading of a "skippable" section of data within the given input stream<BR> @param _rxInput the stream to read from. Must support the css::io::XMarkableStream interface
*/
OStreamSection(const css::uno::Reference<css::io::XDataInputStream>& _rxInput);
/** starts writing of a "skippable" section of data into the given output stream @param _rxOutput the stream the stream to write to. Must support the css::io::XMarkableStream interface
*/
OStreamSection(const css::uno::Reference<css::io::XDataOutputStream>& _rxOutput);
/** dtor. <BR>If constructed for writing, the section "opened" by this object will be "closed".<BR> If constructed for reading, any remaining bytes 'til the end of the section will be skipped.
*/
~OStreamSection();
};
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