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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_PACKAGE_SOURCE_XSTOR_SWITCHPERSISTENCESTREAM_HXX
#define INCLUDED_PACKAGE_SOURCE_XSTOR_SWITCHPERSISTENCESTREAM_HXX
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <com/sun/star/io/XTruncate.hpp>
#include <com/sun/star/io/XStream.hpp>
#include <com/sun/star/io/XAsyncOutputMonitor.hpp>
#include <mutex>
#include <comphelper/bytereader.hxx>
#include <cppuhelper/implbase.hxx>
// SwitchablePersistenceStream
// Allows to switch the stream persistence on the fly. The target
// stream ( if not filled by the implementation ) MUST have the same
// size as the original one!
struct SPStreamData_Impl;
class SwitchablePersistenceStream
: public ::cppu::WeakImplHelper <
css::io::XStream,
css::io::XInputStream,
css::io::XOutputStream,
css::io::XTruncate,
css::io::XSeekable,
css::io::XAsyncOutputMonitor >,
public comphelper::ByteReader
{
std::mutex m_aMutex;
std::unique_ptr<SPStreamData_Impl> m_pStreamData;
void CloseAll_Impl();
public:
SwitchablePersistenceStream(
const css::uno::Reference< css::io::XStream >& xStream );
SwitchablePersistenceStream(
const css::uno::Reference< css::io::XInputStream >& xInStream );
virtual ~SwitchablePersistenceStream() override;
void SwitchPersistenceTo( const css::uno::Reference< css::io::XStream >& xStream );
void SwitchPersistenceTo( const css::uno::Reference< css::io::XInputStream >& xInputStream );
void CopyAndSwitchPersistenceTo( const css::uno::Reference< css::io::XStream >& xStream );
// css::io::XStream
virtual css::uno::Reference< css::io::XInputStream > SAL_CALL getInputStream( ) override;
virtual css::uno::Reference< css::io::XOutputStream > SAL_CALL getOutputStream( ) override;
// css::io::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;
// css::io::XOutputStream
virtual void SAL_CALL writeBytes( const css::uno::Sequence< ::sal_Int8 >& aData ) override;
virtual void SAL_CALL flush( ) override;
virtual void SAL_CALL closeOutput( ) override;
// css::io::XTruncate
virtual void SAL_CALL truncate( ) override;
// css::io::XSeekable
virtual void SAL_CALL seek( ::sal_Int64 location ) override;
virtual ::sal_Int64 SAL_CALL getPosition( ) override;
virtual ::sal_Int64 SAL_CALL getLength( ) override;
// css::io::XAsyncOutputMonitor
virtual void SAL_CALL waitForCompletion( ) override;
// comphelper::ByteReader
virtual sal_Int32 readSomeBytes(sal_Int8* aData, sal_Int32 nBytesToRead) override;
};
#endif // INCLUDED_PACKAGE_SOURCE_XSTOR_SWITCHPERSISTENCESTREAM_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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