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
107 lines
4.3 KiB
C++
107 lines
4.3 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_PACKAGE_SOURCE_XSTOR_SWITCHPERSISTENCESTREAM_HXX
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#define INCLUDED_PACKAGE_SOURCE_XSTOR_SWITCHPERSISTENCESTREAM_HXX
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#include <com/sun/star/uno/Sequence.hxx>
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#include <com/sun/star/uno/Reference.hxx>
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#include <com/sun/star/uno/XComponentContext.hpp>
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#include <com/sun/star/io/XInputStream.hpp>
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#include <com/sun/star/io/XOutputStream.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 <com/sun/star/io/XAsyncOutputMonitor.hpp>
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#include <mutex>
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#include <comphelper/bytereader.hxx>
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#include <cppuhelper/implbase.hxx>
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// SwitchablePersistenceStream
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// Allows to switch the stream persistence on the fly. The target
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// stream ( if not filled by the implementation ) MUST have the same
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// size as the original one!
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struct SPStreamData_Impl;
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class SwitchablePersistenceStream
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: public ::cppu::WeakImplHelper <
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css::io::XStream,
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css::io::XInputStream,
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css::io::XOutputStream,
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css::io::XTruncate,
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css::io::XSeekable,
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css::io::XAsyncOutputMonitor >,
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public comphelper::ByteReader
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{
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std::mutex m_aMutex;
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std::unique_ptr<SPStreamData_Impl> m_pStreamData;
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void CloseAll_Impl();
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public:
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SwitchablePersistenceStream(
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const css::uno::Reference< css::io::XStream >& xStream );
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SwitchablePersistenceStream(
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const css::uno::Reference< css::io::XInputStream >& xInStream );
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virtual ~SwitchablePersistenceStream() override;
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void SwitchPersistenceTo( const css::uno::Reference< css::io::XStream >& xStream );
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void SwitchPersistenceTo( const css::uno::Reference< css::io::XInputStream >& xInputStream );
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void CopyAndSwitchPersistenceTo( const css::uno::Reference< css::io::XStream >& xStream );
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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::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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// 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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// css::io::XTruncate
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virtual void SAL_CALL truncate( ) override;
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// css::io::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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// css::io::XAsyncOutputMonitor
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virtual void SAL_CALL waitForCompletion( ) 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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#endif // INCLUDED_PACKAGE_SOURCE_XSTOR_SWITCHPERSISTENCESTREAM_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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