/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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 *************************************************************/


#ifndef _CRC32_HXX
#define _CRC32_HXX

#include <com/sun/star/uno/Sequence.h>
#include <com/sun/star/uno/RuntimeException.hpp>

namespace com { namespace sun { namespace star {
	namespace io { class XInputStream; }
} } }
class CRC32
{
protected:
	sal_uInt32 nCRC;
public:
	CRC32();
	~CRC32();

	sal_Int32 SAL_CALL updateStream (::com::sun::star::uno::Reference < ::com::sun::star::io::XInputStream > & xStream)
		throw(::com::sun::star::uno::RuntimeException);
	void SAL_CALL updateSegment(const ::com::sun::star::uno::Sequence< sal_Int8 > &b, sal_Int32 off, sal_Int32 len)
		throw(::com::sun::star::uno::RuntimeException);
	void SAL_CALL update(const ::com::sun::star::uno::Sequence< sal_Int8 > &b)
		throw(::com::sun::star::uno::RuntimeException);
	sal_Int32 SAL_CALL getValue()
		throw(::com::sun::star::uno::RuntimeException);
	void SAL_CALL reset()
		throw(::com::sun::star::uno::RuntimeException);
};

#endif