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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_SEEKABLEINPUT_HXX
#define INCLUDED_COMPHELPER_SEEKABLEINPUT_HXX
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <cppuhelper/implbase.hxx>
#include <comphelper/bytereader.hxx>
#include <comphelper/comphelperdllapi.h>
#include <mutex>
namespace com::sun::star::uno { class XComponentContext; }
namespace comphelper
{
class SAL_DLLPUBLIC_TEMPLATE OSeekableInputWrapper_BASE
: public ::cppu::WeakImplHelper< css::io::XInputStream,
css::io::XSeekable >
{};
class COMPHELPER_DLLPUBLIC OSeekableInputWrapper final
: public OSeekableInputWrapper_BASE, public comphelper::ByteReader
{
std::mutex m_aMutex;
css::uno::Reference< css::uno::XComponentContext > m_xContext;
css::uno::Reference< css::io::XInputStream > m_xOriginalStream;
css::uno::Reference< css::io::XInputStream > m_xCopyInput;
css::uno::Reference< css::io::XSeekable > m_xCopySeek;
comphelper::ByteReader* m_pCopyByteReader { nullptr };
private:
COMPHELPER_DLLPRIVATE void PrepareCopy_Impl();
public:
OSeekableInputWrapper(
css::uno::Reference< css::io::XInputStream > xInStream,
css::uno::Reference< css::uno::XComponentContext > xContext );
virtual ~OSeekableInputWrapper() override;
static css::uno::Reference< css::io::XInputStream > CheckSeekableCanWrap(
const css::uno::Reference< css::io::XInputStream >& xInStream,
const css::uno::Reference< css::uno::XComponentContext >& rxContext );
// XInputStream
virtual sal_Int32 SAL_CALL readBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead ) override;
virtual sal_Int32 SAL_CALL readSomeBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead ) override;
virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip ) override;
virtual sal_Int32 SAL_CALL available() override;
virtual void SAL_CALL closeInput() override;
// XSeekable
virtual void SAL_CALL seek( sal_Int64 location ) override;
virtual sal_Int64 SAL_CALL getPosition() override;
virtual sal_Int64 SAL_CALL getLength() override;
// comphelper::ByteReader
virtual sal_Int32 readSomeBytes(sal_Int8* aData, sal_Int32 nBytesToRead) override;
};
} // namespace comphelper
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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