a6ad198d09
which avoids a ton of temporary uno::Sequence being created Change-Id: I237bb69395f692bb0272ca0daec05b81af828e01 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/171968 Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk> Tested-by: Jenkins
87 lines
3.3 KiB
C++
87 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_COMPHELPER_SEEKABLEINPUT_HXX
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#define INCLUDED_COMPHELPER_SEEKABLEINPUT_HXX
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#include <com/sun/star/uno/Reference.hxx>
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#include <com/sun/star/io/XInputStream.hpp>
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#include <com/sun/star/io/XSeekable.hpp>
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#include <cppuhelper/implbase.hxx>
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#include <comphelper/bytereader.hxx>
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#include <comphelper/comphelperdllapi.h>
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#include <mutex>
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namespace com::sun::star::uno { class XComponentContext; }
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namespace comphelper
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{
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class SAL_DLLPUBLIC_TEMPLATE OSeekableInputWrapper_BASE
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: public ::cppu::WeakImplHelper< css::io::XInputStream,
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css::io::XSeekable >
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{};
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class COMPHELPER_DLLPUBLIC OSeekableInputWrapper final
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: public OSeekableInputWrapper_BASE, public comphelper::ByteReader
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{
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std::mutex m_aMutex;
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css::uno::Reference< css::uno::XComponentContext > m_xContext;
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css::uno::Reference< css::io::XInputStream > m_xOriginalStream;
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css::uno::Reference< css::io::XInputStream > m_xCopyInput;
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css::uno::Reference< css::io::XSeekable > m_xCopySeek;
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comphelper::ByteReader* m_pCopyByteReader { nullptr };
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private:
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COMPHELPER_DLLPRIVATE void PrepareCopy_Impl();
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public:
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OSeekableInputWrapper(
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css::uno::Reference< css::io::XInputStream > xInStream,
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css::uno::Reference< css::uno::XComponentContext > xContext );
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virtual ~OSeekableInputWrapper() override;
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static css::uno::Reference< css::io::XInputStream > CheckSeekableCanWrap(
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const css::uno::Reference< css::io::XInputStream >& xInStream,
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const css::uno::Reference< css::uno::XComponentContext >& rxContext );
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// XInputStream
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virtual sal_Int32 SAL_CALL readBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead ) override;
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virtual sal_Int32 SAL_CALL readSomeBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead ) override;
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virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip ) override;
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virtual sal_Int32 SAL_CALL available() override;
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virtual void SAL_CALL closeInput() override;
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// XSeekable
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virtual void SAL_CALL seek( sal_Int64 location ) override;
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virtual sal_Int64 SAL_CALL getPosition() override;
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virtual sal_Int64 SAL_CALL getLength() override;
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// comphelper::ByteReader
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virtual sal_Int32 readSomeBytes(sal_Int8* aData, sal_Int32 nBytesToRead) override;
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};
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} // namespace comphelper
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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