253 lines
8.3 KiB
C++
253 lines
8.3 KiB
C++
/*************************************************************************
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*
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* $RCSfile: ZipPackageBuffer.cxx,v $
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*
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* $Revision: 1.7 $
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*
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* last change: $Author: mtg $ $Date: 2000-12-19 21:55:41 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): Martin Gallwey (gallwey@sun.com)
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*
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*
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************************************************************************/
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#ifndef _ZIP_PACKAGE_BUFFER_HXX
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#include "ZipPackageBuffer.hxx"
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#endif
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using namespace com::sun::star::uno;
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using namespace com::sun::star::io;
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ZipPackageBuffer::ZipPackageBuffer(sal_Int64 nNewBufferSize)
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: nBufferSize (nNewBufferSize)
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, aBuffer (static_cast < sal_Int32 > (nNewBufferSize))
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, nCurrent(0)
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, nEnd(0)
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{
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}
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ZipPackageBuffer::~ZipPackageBuffer(void)
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{
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}
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Any SAL_CALL ZipPackageBuffer::queryInterface( const Type& rType )
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throw(RuntimeException)
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{
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Any aReturn( ::cppu::queryInterface
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( rType, static_cast< com::sun::star::io::XInputStream*> ( this ),
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static_cast< com::sun::star::io::XSeekable*> ( this ),
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static_cast< com::sun::star::io::XOutputStream*> ( this )));
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if ( aReturn.hasValue () == sal_True )
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return aReturn ;
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else
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return OWeakObject::queryInterface ( rType ) ;
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}
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void SAL_CALL ZipPackageBuffer::acquire(void)
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throw()
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{
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OWeakObject::acquire();
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}
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void SAL_CALL ZipPackageBuffer::release(void)
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throw()
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{
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OWeakObject::release();
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}
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sal_Int32 SAL_CALL ZipPackageBuffer::readBytes( Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
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{
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//const sal_Int8 *pBuffer = aBuffer.getConstArray()+nCurrent;
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if (nBytesToRead < 0)
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throw BufferSizeExceededException(::rtl::OUString(),*this);
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if (nBytesToRead + nCurrent > nEnd)
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nBytesToRead = static_cast < sal_Int32 > (nEnd - nCurrent);
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memcpy(aData.getArray(), aBuffer.getConstArray() + nCurrent, nBytesToRead);
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nCurrent +=nBytesToRead;
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return nBytesToRead;
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//aData.realloc(nBytesToRead);
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//memcpy(aData.getArray(), pBuffer + nCurrent, nBytesToRead);
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//memcpy(pData, pBuffer, nBytesToRead);
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// Optimisations for often called cases
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/*
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switch (nBytesToRead)
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{
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case 0:
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return 0;
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case 1:
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*(pData++) = *pBuffer;
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nCurrent +=1;
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return 1;
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case 2:
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*(pData++) = *(pBuffer++);
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* pData = *pBuffer;
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nCurrent +=2;
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return 2;
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case 4:
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*(pData++) = *(pBuffer++);
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*(pData++) = *(pBuffer++);
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*(pData++) = *(pBuffer++);
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* pData = * pBuffer;
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nCurrent +=4;
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return 4;
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default:
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memcpy(pData, pBuffer, nBytesToRead);
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nCurrent +=nBytesToRead;
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return nBytesToRead;
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}
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//return nBytesToRead;
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*/
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}
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sal_Int32 SAL_CALL ZipPackageBuffer::readSomeBytes( Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
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{
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/*
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if (nMaxBytesToRead + nCurrent > nEnd)
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nMaxBytesToRead = nEnd - nCurrent;
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sal_Int64 nEndRead = nMaxBytesToRead+nCurrent;
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for (sal_Int64 i =0; nCurrent < nEndRead; nCurrent++, i++)
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aData[i] = aBuffer[nCurrent];
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return nMaxBytesToRead;
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*/
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// all data is available at once
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return readBytes(aData, nMaxBytesToRead);
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}
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void SAL_CALL ZipPackageBuffer::skipBytes( sal_Int32 nBytesToSkip )
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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
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{
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if (nBytesToSkip < 0)
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throw BufferSizeExceededException(::rtl::OUString(),*this);
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if (nBytesToSkip + nCurrent > nEnd)
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nBytesToSkip = static_cast < sal_Int32 > (nEnd - nCurrent);
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nCurrent+=nBytesToSkip;
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}
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sal_Int32 SAL_CALL ZipPackageBuffer::available( )
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throw(NotConnectedException, IOException, RuntimeException)
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{
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return static_cast < sal_Int32 > (nEnd - nCurrent);
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}
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void SAL_CALL ZipPackageBuffer::closeInput( )
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throw(NotConnectedException, IOException, RuntimeException)
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{
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}
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void SAL_CALL ZipPackageBuffer::writeBytes( const Sequence< sal_Int8 >& aData )
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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
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{
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sal_Int64 nDataLen = aData.getLength();
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const sal_Int8 *pData = aData.getConstArray();
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if (nEnd + nDataLen > nBufferSize)
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{
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while (nEnd + nDataLen > nBufferSize)
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nBufferSize *=2;
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aBuffer.realloc(static_cast < sal_Int32 > (nBufferSize));
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}
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/*
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sal_Int8 *pBuffer = aBuffer.getArray()+nCurrent;
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switch (nDataLen)
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{
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case 0:
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break;
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case 1:
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* pBuffer = *pData;
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nCurrent++;
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break;
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case 2:
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*(pBuffer++) = *(pData++);
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* pBuffer = * pData ;
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nCurrent +=2;
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break;
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case 4:
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*(pBuffer++) = *(pData++);
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*(pBuffer++) = *(pData++);
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*(pBuffer++) = *(pData++);
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* pBuffer = * pData ;
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nCurrent +=4;
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break;
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default:
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memcpy(pBuffer, pData, static_cast < sal_Int32 > (nDataLen));
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nCurrent += nDataLen;
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break;
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}
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*/
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//memcpy( pBuffer + nCurrent, aData.getConstArray(), static_cast < sal_Int32 > (nDataLen));
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memcpy( aBuffer.getArray() + nCurrent, aData.getConstArray(), static_cast < sal_Int32 > (nDataLen));
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nCurrent+=nDataLen;
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if (nCurrent>nEnd)
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nEnd = nCurrent;
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}
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void SAL_CALL ZipPackageBuffer::flush( )
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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
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{
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}
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void SAL_CALL ZipPackageBuffer::closeOutput( )
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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
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{
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}
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void SAL_CALL ZipPackageBuffer::seek( sal_Int64 location )
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throw(::com::sun::star::lang::IllegalArgumentException, IOException, RuntimeException)
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{
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nCurrent = location;
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}
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sal_Int64 SAL_CALL ZipPackageBuffer::getPosition( )
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throw(IOException, RuntimeException)
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{
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return nCurrent;
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}
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sal_Int64 SAL_CALL ZipPackageBuffer::getLength( )
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throw(IOException, RuntimeException)
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{
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return nEnd;
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}
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