6be9ae8aa1
because these are all on the hot path, and in the best case, with enough inlining, the compiler can skip the call altogether and just do a locked CMPXHG instruction Change-Id: I099d6385f602e40e1767f9f1002b7514ecf436e5 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/88775 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
317 lines
8.3 KiB
C++
317 lines
8.3 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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#include <sal/config.h>
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#include <com/sun/star/io/BufferSizeExceededException.hpp>
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#include <com/sun/star/io/NotConnectedException.hpp>
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#include <o3tl/safeint.hxx>
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#include <unotools/streamwrap.hxx>
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#include <tools/stream.hxx>
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namespace utl
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{
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using namespace ::com::sun::star::uno;
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using namespace ::com::sun::star::io;
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using namespace ::com::sun::star::lang;
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OInputStreamWrapper::OInputStreamWrapper( SvStream& _rStream )
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:m_pSvStream(&_rStream)
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,m_bSvStreamOwner(false)
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{
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}
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OInputStreamWrapper::OInputStreamWrapper( SvStream* pStream, bool bOwner )
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:m_pSvStream( pStream )
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,m_bSvStreamOwner( bOwner )
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{
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}
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OInputStreamWrapper::OInputStreamWrapper( std::unique_ptr<SvStream> pStream )
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:m_pSvStream( pStream.release() )
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,m_bSvStreamOwner( true )
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{
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}
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OInputStreamWrapper::~OInputStreamWrapper()
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{
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if( m_bSvStreamOwner )
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delete m_pSvStream;
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}
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sal_Int32 SAL_CALL OInputStreamWrapper::readBytes(css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead)
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{
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checkConnected();
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if (nBytesToRead < 0)
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throw css::io::BufferSizeExceededException(OUString(),static_cast<css::uno::XWeak*>(this));
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::osl::MutexGuard aGuard( m_aMutex );
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if (aData.getLength() < nBytesToRead)
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aData.realloc(nBytesToRead);
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sal_uInt32 nRead = m_pSvStream->ReadBytes(static_cast<void*>(aData.getArray()), nBytesToRead);
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checkError();
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// If read characters < MaxLength, adjust css::uno::Sequence
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if (nRead < o3tl::make_unsigned(aData.getLength()))
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aData.realloc( nRead );
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return nRead;
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}
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sal_Int32 SAL_CALL OInputStreamWrapper::readSomeBytes(css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead)
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{
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checkError();
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if (nMaxBytesToRead < 0)
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throw css::io::BufferSizeExceededException(OUString(),static_cast<css::uno::XWeak*>(this));
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if (m_pSvStream->eof())
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{
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aData.realloc(0);
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return 0;
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}
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else
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return readBytes(aData, nMaxBytesToRead);
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}
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void SAL_CALL OInputStreamWrapper::skipBytes(sal_Int32 nBytesToSkip)
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{
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::osl::MutexGuard aGuard( m_aMutex );
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checkError();
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m_pSvStream->SeekRel(nBytesToSkip);
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checkError();
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}
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sal_Int32 SAL_CALL OInputStreamWrapper::available()
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{
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::osl::MutexGuard aGuard( m_aMutex );
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checkConnected();
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sal_Int64 nAvailable = m_pSvStream->remainingSize();
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checkError();
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return std::min<sal_Int64>(SAL_MAX_INT32, nAvailable);
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}
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void SAL_CALL OInputStreamWrapper::closeInput()
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{
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::osl::MutexGuard aGuard( m_aMutex );
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checkConnected();
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if (m_bSvStreamOwner)
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delete m_pSvStream;
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m_pSvStream = nullptr;
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}
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void OInputStreamWrapper::checkConnected() const
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{
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if (!m_pSvStream)
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throw css::io::NotConnectedException(OUString(), const_cast<css::uno::XWeak*>(static_cast<const css::uno::XWeak*>(this)));
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}
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void OInputStreamWrapper::checkError() const
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{
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checkConnected();
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auto const e = m_pSvStream->SvStream::GetError();
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if (e != ERRCODE_NONE)
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// TODO: really evaluate the error
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throw css::io::NotConnectedException("utl::OInputStreamWrapper error " + e.toHexString(), const_cast<css::uno::XWeak*>(static_cast<const css::uno::XWeak*>(this)));
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}
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//= OSeekableInputStreamWrapper
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OSeekableInputStreamWrapper::~OSeekableInputStreamWrapper() = default;
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OSeekableInputStreamWrapper::OSeekableInputStreamWrapper(SvStream& _rStream)
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{
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SetStream( &_rStream, false );
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}
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OSeekableInputStreamWrapper::OSeekableInputStreamWrapper(SvStream* _pStream, bool _bOwner)
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{
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SetStream( _pStream, _bOwner );
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}
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void SAL_CALL OSeekableInputStreamWrapper::seek( sal_Int64 _nLocation )
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{
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::osl::MutexGuard aGuard( m_aMutex );
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checkConnected();
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m_pSvStream->Seek(static_cast<sal_uInt32>(_nLocation));
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checkError();
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}
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sal_Int64 SAL_CALL OSeekableInputStreamWrapper::getPosition( )
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{
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::osl::MutexGuard aGuard( m_aMutex );
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checkConnected();
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sal_uInt32 nPos = m_pSvStream->Tell();
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checkError();
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return static_cast<sal_Int64>(nPos);
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}
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sal_Int64 SAL_CALL OSeekableInputStreamWrapper::getLength( )
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{
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::osl::MutexGuard aGuard( m_aMutex );
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checkConnected();
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checkError();
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sal_Int64 nEndPos = m_pSvStream->TellEnd();
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return nEndPos;
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}
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//= OOutputStreamWrapper
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OOutputStreamWrapper::OOutputStreamWrapper(SvStream& _rStream):
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rStream(_rStream)
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{}
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OOutputStreamWrapper::~OOutputStreamWrapper() {}
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void SAL_CALL OOutputStreamWrapper::writeBytes(const css::uno::Sequence< sal_Int8 >& aData)
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{
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sal_uInt32 nWritten = rStream.WriteBytes(aData.getConstArray(), aData.getLength());
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ErrCode err = rStream.GetError();
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if ( (ERRCODE_NONE != err)
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|| (nWritten != static_cast<sal_uInt32>(aData.getLength()))
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)
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{
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throw css::io::BufferSizeExceededException(OUString(),static_cast<css::uno::XWeak*>(this));
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}
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}
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void SAL_CALL OOutputStreamWrapper::flush()
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{
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rStream.Flush();
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checkError();
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}
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void SAL_CALL OOutputStreamWrapper::closeOutput()
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{
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}
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void OOutputStreamWrapper::checkError() const
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{
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if (rStream.GetError() != ERRCODE_NONE)
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// TODO: really evaluate the error
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throw css::io::NotConnectedException(OUString(), const_cast<css::uno::XWeak*>(static_cast<const css::uno::XWeak*>(this)));
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}
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//= OSeekableOutputStreamWrapper
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OSeekableOutputStreamWrapper::OSeekableOutputStreamWrapper(SvStream& _rStream)
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:OOutputStreamWrapper(_rStream)
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{
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}
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OSeekableOutputStreamWrapper::~OSeekableOutputStreamWrapper() {}
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Any SAL_CALL OSeekableOutputStreamWrapper::queryInterface( const Type& _rType )
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{
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Any aReturn = OOutputStreamWrapper::queryInterface(_rType);
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if (!aReturn.hasValue())
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aReturn = OSeekableOutputStreamWrapper_Base::queryInterface(_rType);
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return aReturn;
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}
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void SAL_CALL OSeekableOutputStreamWrapper::seek( sal_Int64 _nLocation )
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{
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rStream.Seek(static_cast<sal_uInt32>(_nLocation));
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checkError();
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}
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sal_Int64 SAL_CALL OSeekableOutputStreamWrapper::getPosition( )
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{
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sal_uInt32 nPos = rStream.Tell();
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checkError();
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return static_cast<sal_Int64>(nPos);
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}
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sal_Int64 SAL_CALL OSeekableOutputStreamWrapper::getLength( )
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{
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checkError();
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sal_Int64 nEndPos = rStream.TellEnd();
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return nEndPos;
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}
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OStreamWrapper::~OStreamWrapper() = default;
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OStreamWrapper::OStreamWrapper(SvStream& _rStream)
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{
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SetStream( &_rStream, false );
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}
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OStreamWrapper::OStreamWrapper(std::unique_ptr<SvStream> pStream)
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{
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SetStream( pStream.release(), true );
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}
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css::uno::Reference< css::io::XInputStream > SAL_CALL OStreamWrapper::getInputStream( )
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{
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return this;
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}
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css::uno::Reference< css::io::XOutputStream > SAL_CALL OStreamWrapper::getOutputStream( )
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{
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return this;
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}
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void SAL_CALL OStreamWrapper::writeBytes(const css::uno::Sequence< sal_Int8 >& aData)
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{
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sal_uInt32 nWritten = m_pSvStream->WriteBytes(aData.getConstArray(), aData.getLength());
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ErrCode err = m_pSvStream->GetError();
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if ( (ERRCODE_NONE != err)
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|| (nWritten != static_cast<sal_uInt32>(aData.getLength()))
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)
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{
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throw css::io::BufferSizeExceededException(OUString(),static_cast<css::uno::XWeak*>(this));
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}
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}
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void SAL_CALL OStreamWrapper::flush()
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{
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m_pSvStream->Flush();
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if (m_pSvStream->GetError() != ERRCODE_NONE)
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throw css::io::NotConnectedException(OUString(),static_cast<css::uno::XWeak*>(this));
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}
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void SAL_CALL OStreamWrapper::closeOutput()
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{
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}
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void SAL_CALL OStreamWrapper::truncate()
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{
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m_pSvStream->SetStreamSize(0);
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}
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} // namespace utl
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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