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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 .
*/
#include <ZipPackageBuffer.hxx>
#include <string.h>
using namespace ::com::sun::star;
using namespace com::sun::star::uno;
using namespace com::sun::star::io;
using com::sun::star::lang::IllegalArgumentException;
ZipPackageBuffer::ZipPackageBuffer(sal_Int64 nNewBufferSize )
: m_nBufferSize (nNewBufferSize)
, m_nEnd(0)
, m_nCurrent(0)
, m_bMustInitBuffer ( sal_True )
{
}
ZipPackageBuffer::~ZipPackageBuffer(void)
{
}
sal_Int32 SAL_CALL ZipPackageBuffer::readBytes( Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
if (nBytesToRead < 0)
throw BufferSizeExceededException(OSL_LOG_PREFIX, *this );
if (nBytesToRead + m_nCurrent > m_nEnd)
nBytesToRead = static_cast < sal_Int32 > (m_nEnd - m_nCurrent);
aData.realloc ( nBytesToRead );
memcpy(aData.getArray(), m_aBuffer.getConstArray() + m_nCurrent, nBytesToRead);
m_nCurrent +=nBytesToRead;
return nBytesToRead;
}
sal_Int32 SAL_CALL ZipPackageBuffer::readSomeBytes( Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
return readBytes(aData, nMaxBytesToRead);
}
void SAL_CALL ZipPackageBuffer::skipBytes( sal_Int32 nBytesToSkip )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
if (nBytesToSkip < 0)
throw BufferSizeExceededException(OSL_LOG_PREFIX, *this );
if (nBytesToSkip + m_nCurrent > m_nEnd)
nBytesToSkip = static_cast < sal_Int32 > (m_nEnd - m_nCurrent);
m_nCurrent+=nBytesToSkip;
}
sal_Int32 SAL_CALL ZipPackageBuffer::available( )
throw(NotConnectedException, IOException, RuntimeException)
{
return static_cast < sal_Int32 > (m_nEnd - m_nCurrent);
}
void SAL_CALL ZipPackageBuffer::closeInput( )
throw(NotConnectedException, IOException, RuntimeException)
{
}
void SAL_CALL ZipPackageBuffer::writeBytes( const Sequence< sal_Int8 >& aData )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
sal_Int64 nDataLen = aData.getLength(), nCombined = m_nEnd + nDataLen;
if ( nCombined > m_nBufferSize)
{
do
m_nBufferSize *=2;
while (nCombined > m_nBufferSize);
m_aBuffer.realloc(static_cast < sal_Int32 > (m_nBufferSize));
m_bMustInitBuffer = sal_False;
}
else if (m_bMustInitBuffer)
{
m_aBuffer.realloc ( static_cast < sal_Int32 > ( m_nBufferSize ) );
m_bMustInitBuffer = sal_False;
}
memcpy( m_aBuffer.getArray() + m_nCurrent, aData.getConstArray(), static_cast < sal_Int32 > (nDataLen));
m_nCurrent+=nDataLen;
if (m_nCurrent>m_nEnd)
m_nEnd = m_nCurrent;
}
void SAL_CALL ZipPackageBuffer::flush( )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
}
void SAL_CALL ZipPackageBuffer::closeOutput( )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
}
void SAL_CALL ZipPackageBuffer::seek( sal_Int64 location )
throw( IllegalArgumentException, IOException, RuntimeException)
{
if ( location > m_nEnd || location < 0 )
throw IllegalArgumentException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >(), 1 );
m_nCurrent = location;
}
sal_Int64 SAL_CALL ZipPackageBuffer::getPosition( )
throw(IOException, RuntimeException)
{
return m_nCurrent;
}
sal_Int64 SAL_CALL ZipPackageBuffer::getLength( )
throw(IOException, RuntimeException)
{
return m_nEnd;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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