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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 .
*/
#ifndef INCLUDED_COMPHELPER_STREAMSECTION_HXX
#define INCLUDED_COMPHELPER_STREAMSECTION_HXX
#include <config_options.h>
#include <com/sun/star/uno/Reference.h>
#include <comphelper/comphelperdllapi.h>
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();
};
} // namespace comphelper
#endif // INCLUDED_COMPHELPER_STREAMSECTION_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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