office-gobmx/unotools/source/streaming/streamwrap.cxx
Noel Grandin 9a1de2cfdf use sal_uInt64 when dealing with stream position
Change-Id: I0752d158c648f6ebfa17c9273bab2176e1ca6c83
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/155518
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2023-08-09 20:04:57 +02:00

338 lines
8.7 KiB
C++

/* -*- 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 .
*/
#include <sal/config.h>
#include <com/sun/star/io/BufferSizeExceededException.hpp>
#include <com/sun/star/io/NotConnectedException.hpp>
#include <o3tl/safeint.hxx>
#include <unotools/streamwrap.hxx>
#include <tools/stream.hxx>
namespace utl
{
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::io;
using namespace ::com::sun::star::lang;
OInputStreamWrapper::OInputStreamWrapper( SvStream& _rStream )
:m_pSvStream(&_rStream)
,m_bSvStreamOwner(false)
{
}
OInputStreamWrapper::OInputStreamWrapper( SvStream* pStream, bool bOwner )
:m_pSvStream( pStream )
,m_bSvStreamOwner( bOwner )
{
}
OInputStreamWrapper::OInputStreamWrapper( std::unique_ptr<SvStream> pStream )
:m_pSvStream( pStream.release() )
,m_bSvStreamOwner( true )
{
}
OInputStreamWrapper::~OInputStreamWrapper()
{
if( m_bSvStreamOwner )
delete m_pSvStream;
}
sal_Int32 SAL_CALL OInputStreamWrapper::readBytes(css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead)
{
checkConnected();
if (nBytesToRead < 0)
throw css::io::BufferSizeExceededException(OUString(), getXWeak());
std::scoped_lock aGuard( m_aMutex );
if (aData.getLength() < nBytesToRead)
aData.realloc(nBytesToRead);
sal_uInt32 nRead = m_pSvStream->ReadBytes(static_cast<void*>(aData.getArray()), nBytesToRead);
checkError();
// If read characters < MaxLength, adjust css::uno::Sequence
if (nRead < o3tl::make_unsigned(aData.getLength()))
aData.realloc( nRead );
return nRead;
}
sal_Int32 OInputStreamWrapper::readSomeBytes(sal_Int8* pData, sal_Int32 nBytesToRead)
{
checkConnected();
if (nBytesToRead < 0)
throw css::io::BufferSizeExceededException(OUString(), getXWeak());
std::scoped_lock aGuard( m_aMutex );
sal_uInt32 nRead = m_pSvStream->ReadBytes(static_cast<void*>(pData), nBytesToRead);
checkError();
return nRead;
}
sal_Int32 SAL_CALL OInputStreamWrapper::readSomeBytes(css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead)
{
checkError();
if (nMaxBytesToRead < 0)
throw css::io::BufferSizeExceededException(OUString(), getXWeak());
if (m_pSvStream->eof())
{
aData.realloc(0);
return 0;
}
else
return readBytes(aData, nMaxBytesToRead);
}
void SAL_CALL OInputStreamWrapper::skipBytes(sal_Int32 nBytesToSkip)
{
std::scoped_lock aGuard( m_aMutex );
checkError();
m_pSvStream->SeekRel(nBytesToSkip);
checkError();
}
sal_Int32 SAL_CALL OInputStreamWrapper::available()
{
std::scoped_lock aGuard( m_aMutex );
checkConnected();
sal_Int64 nAvailable = m_pSvStream->remainingSize();
checkError();
return std::min<sal_Int64>(SAL_MAX_INT32, nAvailable);
}
void SAL_CALL OInputStreamWrapper::closeInput()
{
std::scoped_lock aGuard( m_aMutex );
if (m_pSvStream)
{
if (m_bSvStreamOwner)
delete m_pSvStream;
m_pSvStream = nullptr;
}
}
void OInputStreamWrapper::checkConnected() const
{
if (!m_pSvStream)
throw css::io::NotConnectedException(OUString(), const_cast<OInputStreamWrapper*>(this)->getXWeak());
}
void OInputStreamWrapper::checkError() const
{
checkConnected();
auto const e = m_pSvStream->SvStream::GetError();
if (e != ERRCODE_NONE)
// TODO: really evaluate the error
throw css::io::NotConnectedException("utl::OInputStreamWrapper error " + e.toString(), const_cast<OInputStreamWrapper*>(this)->getXWeak());
}
//= OSeekableInputStreamWrapper
OSeekableInputStreamWrapper::~OSeekableInputStreamWrapper() = default;
OSeekableInputStreamWrapper::OSeekableInputStreamWrapper(SvStream& _rStream)
{
SetStream( &_rStream, false );
}
OSeekableInputStreamWrapper::OSeekableInputStreamWrapper(SvStream* _pStream, bool _bOwner)
{
SetStream( _pStream, _bOwner );
}
void SAL_CALL OSeekableInputStreamWrapper::seek( sal_Int64 _nLocation )
{
std::scoped_lock aGuard( m_aMutex );
checkConnected();
m_pSvStream->Seek(static_cast<sal_uInt64>(_nLocation));
checkError();
}
sal_Int64 SAL_CALL OSeekableInputStreamWrapper::getPosition( )
{
std::scoped_lock aGuard( m_aMutex );
checkConnected();
sal_uInt64 nPos = m_pSvStream->Tell();
checkError();
return static_cast<sal_Int64>(nPos);
}
sal_Int64 SAL_CALL OSeekableInputStreamWrapper::getLength( )
{
std::scoped_lock aGuard( m_aMutex );
checkConnected();
checkError();
sal_Int64 nEndPos = m_pSvStream->TellEnd();
return nEndPos;
}
//= OOutputStreamWrapper
OOutputStreamWrapper::OOutputStreamWrapper(SvStream& _rStream):
rStream(_rStream)
{}
OOutputStreamWrapper::~OOutputStreamWrapper() {}
void SAL_CALL OOutputStreamWrapper::writeBytes(const css::uno::Sequence< sal_Int8 >& aData)
{
sal_uInt32 nWritten = rStream.WriteBytes(aData.getConstArray(), aData.getLength());
ErrCode err = rStream.GetError();
if ( (ERRCODE_NONE != err)
|| (nWritten != static_cast<sal_uInt32>(aData.getLength()))
)
{
throw css::io::BufferSizeExceededException(OUString(), getXWeak());
}
}
void SAL_CALL OOutputStreamWrapper::flush()
{
rStream.FlushBuffer();
checkError();
}
void SAL_CALL OOutputStreamWrapper::closeOutput()
{
}
void OOutputStreamWrapper::checkError() const
{
if (rStream.GetError() != ERRCODE_NONE)
// TODO: really evaluate the error
throw css::io::NotConnectedException(OUString(), const_cast<OOutputStreamWrapper*>(this)->getXWeak());
}
//= OSeekableOutputStreamWrapper
OSeekableOutputStreamWrapper::OSeekableOutputStreamWrapper(SvStream& _rStream)
:OOutputStreamWrapper(_rStream)
{
}
OSeekableOutputStreamWrapper::~OSeekableOutputStreamWrapper() {}
Any SAL_CALL OSeekableOutputStreamWrapper::queryInterface( const Type& _rType )
{
Any aReturn = OOutputStreamWrapper::queryInterface(_rType);
if (!aReturn.hasValue())
aReturn = OSeekableOutputStreamWrapper_Base::queryInterface(_rType);
return aReturn;
}
void SAL_CALL OSeekableOutputStreamWrapper::seek( sal_Int64 _nLocation )
{
rStream.Seek(static_cast<sal_uInt32>(_nLocation));
checkError();
}
sal_Int64 SAL_CALL OSeekableOutputStreamWrapper::getPosition( )
{
sal_uInt64 nPos = rStream.Tell();
checkError();
return static_cast<sal_Int64>(nPos);
}
sal_Int64 SAL_CALL OSeekableOutputStreamWrapper::getLength( )
{
checkError();
sal_Int64 nEndPos = rStream.TellEnd();
return nEndPos;
}
OStreamWrapper::~OStreamWrapper() = default;
OStreamWrapper::OStreamWrapper(SvStream& _rStream)
{
SetStream( &_rStream, false );
}
OStreamWrapper::OStreamWrapper(std::unique_ptr<SvStream> pStream)
{
SetStream( pStream.release(), true );
}
OStreamWrapper::OStreamWrapper(SvStream* pStream, bool bOwner)
{
SetStream( pStream, bOwner );
}
css::uno::Reference< css::io::XInputStream > SAL_CALL OStreamWrapper::getInputStream( )
{
return this;
}
css::uno::Reference< css::io::XOutputStream > SAL_CALL OStreamWrapper::getOutputStream( )
{
return this;
}
void SAL_CALL OStreamWrapper::writeBytes(const css::uno::Sequence< sal_Int8 >& aData)
{
sal_uInt32 nWritten = m_pSvStream->WriteBytes(aData.getConstArray(), aData.getLength());
ErrCode err = m_pSvStream->GetError();
if ( (ERRCODE_NONE != err)
|| (nWritten != static_cast<sal_uInt32>(aData.getLength()))
)
{
throw css::io::BufferSizeExceededException(OUString(), getXWeak());
}
}
void SAL_CALL OStreamWrapper::flush()
{
m_pSvStream->FlushBuffer();
if (m_pSvStream->GetError() != ERRCODE_NONE)
throw css::io::NotConnectedException(OUString(), getXWeak());
}
void SAL_CALL OStreamWrapper::closeOutput()
{
}
void SAL_CALL OStreamWrapper::truncate()
{
m_pSvStream->SetStreamSize(0);
}
} // namespace utl
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */