ee6de54dde
Change-Id: I55fd67a66067f0c4f43ef182101c8d72a22fe3f3 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/173325 Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk> Tested-by: Jenkins
181 lines
6.7 KiB
C++
181 lines
6.7 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_UNOTOOLS_STREAMWRAP_HXX
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#define INCLUDED_UNOTOOLS_STREAMWRAP_HXX
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#include <unotools/unotoolsdllapi.h>
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#include <com/sun/star/io/XOutputStream.hpp>
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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 <com/sun/star/io/XTruncate.hpp>
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#include <com/sun/star/io/XStream.hpp>
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#include <comphelper/bytereader.hxx>
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#include <cppuhelper/implbase.hxx>
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#include <cppuhelper/implbase1.hxx>
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#include <memory>
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#include <mutex>
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class SvStream;
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namespace utl
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{
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// workaround for incremental linking bugs in MSVC2015
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class SAL_DLLPUBLIC_TEMPLATE OInputStreamWrapper_Base : public cppu::WeakImplHelper< css::io::XInputStream > {};
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/// helper class for wrapping an SvStream into a com.sun.star.io::XInputStream
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class UNOTOOLS_DLLPUBLIC OInputStreamWrapper : public OInputStreamWrapper_Base, public comphelper::ByteReader
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{
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protected:
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std::mutex m_aMutex;
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SvStream* m_pSvStream;
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bool m_bSvStreamOwner : 1;
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OInputStreamWrapper()
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{ m_pSvStream = nullptr; m_bSvStreamOwner = false; }
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void SetStream(SvStream* _pStream, bool bOwner )
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{ m_pSvStream = _pStream; m_bSvStreamOwner = bOwner; }
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public:
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OInputStreamWrapper(SvStream& _rStream);
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OInputStreamWrapper(SvStream* pStream, bool bOwner=false);
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OInputStreamWrapper(std::unique_ptr<SvStream> pStream);
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virtual ~OInputStreamWrapper() override;
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// css::io::XInputStream
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virtual sal_Int32 SAL_CALL readBytes(css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) override final;
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virtual sal_Int32 SAL_CALL readSomeBytes(css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) override final;
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virtual void SAL_CALL skipBytes(sal_Int32 nBytesToSkip) override final;
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virtual sal_Int32 SAL_CALL available() override final;
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virtual void SAL_CALL closeInput() override final;
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// utl::ByteReader
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virtual sal_Int32 readSomeBytes( sal_Int8* aData, sal_Int32 nMaxBytesToRead ) final override;
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protected:
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/// throws a NotConnectedException if the object is not connected anymore
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void checkConnected() const;
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/// throws an exception according to the error flag of m_pSvStream
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void checkError() const;
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};
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//= OSeekableInputStreamWrapper
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/** helper class for wrapping an SvStream into a com.sun.star.io::XInputStream
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which is seekable (i.e. supports the com.sun.star.io::XSeekable interface).
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*/
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class UNOTOOLS_DLLPUBLIC OSeekableInputStreamWrapper
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: public cppu::ImplInheritanceHelper< OInputStreamWrapper, css::io::XSeekable >
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{
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protected:
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OSeekableInputStreamWrapper() {}
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~OSeekableInputStreamWrapper() override;
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public:
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OSeekableInputStreamWrapper(SvStream& _rStream);
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OSeekableInputStreamWrapper(SvStream* _pStream, bool _bOwner = false);
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// XSeekable
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virtual void SAL_CALL seek( sal_Int64 _nLocation ) override final;
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virtual sal_Int64 SAL_CALL getPosition( ) override final;
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virtual sal_Int64 SAL_CALL getLength( ) override final;
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};
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//= OOutputStreamWrapper
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class UNOTOOLS_DLLPUBLIC OOutputStreamWrapper : public cppu::WeakImplHelper<css::io::XOutputStream>
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{
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public:
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OOutputStreamWrapper(SvStream& _rStream);
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// css::io::XOutputStream
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virtual void SAL_CALL writeBytes(const css::uno::Sequence< sal_Int8 >& aData) override final;
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virtual void SAL_CALL flush() override final;
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virtual void SAL_CALL closeOutput() override final;
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protected:
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virtual ~OOutputStreamWrapper() override;
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/// throws an exception according to the error flag of m_pSvStream
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void checkError() const;
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// TODO: thread safety!
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SvStream& rStream;
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};
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//= OSeekableOutputStreamWrapper
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typedef ::cppu::ImplHelper1 < css::io::XSeekable
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> OSeekableOutputStreamWrapper_Base;
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/** helper class for wrapping an SvStream into a com.sun.star.io::XOutputStream
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which is seekable (i.e. supports the com.sun.star.io::XSeekable interface).
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*/
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class UNOTOOLS_DLLPUBLIC OSeekableOutputStreamWrapper final
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:public OOutputStreamWrapper
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,public OSeekableOutputStreamWrapper_Base
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{
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public:
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OSeekableOutputStreamWrapper(SvStream& _rStream);
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private:
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virtual ~OSeekableOutputStreamWrapper() override;
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// disambiguate XInterface
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virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type& _rType ) override;
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virtual void SAL_CALL acquire( ) noexcept override
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{ OOutputStreamWrapper::acquire(); }
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virtual void SAL_CALL release( ) noexcept override
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{ OOutputStreamWrapper::release(); }
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// XSeekable
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virtual void SAL_CALL seek( sal_Int64 _nLocation ) 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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};
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class UNOTOOLS_DLLPUBLIC OStreamWrapper final
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: public cppu::ImplInheritanceHelper<OSeekableInputStreamWrapper,
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css::io::XStream,
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css::io::XOutputStream,
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css::io::XTruncate>
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{
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~OStreamWrapper() override;
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public:
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OStreamWrapper(SvStream& _rStream);
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OStreamWrapper(std::unique_ptr<SvStream> _rStream);
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OStreamWrapper(SvStream* _pStream, bool _bOwner = false);
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// css::io::XStream
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virtual css::uno::Reference< css::io::XInputStream > SAL_CALL getInputStream( ) override;
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virtual css::uno::Reference< css::io::XOutputStream > SAL_CALL getOutputStream( ) override;
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// css::io::XOutputStream
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virtual void SAL_CALL writeBytes(const css::uno::Sequence< sal_Int8 >& aData) override;
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virtual void SAL_CALL flush() override;
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virtual void SAL_CALL closeOutput() override;
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virtual void SAL_CALL truncate() override;
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};
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}
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// namespace utl
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#endif // INCLUDED_UNOTOOLS_STREAMWRAP_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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