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106 lines
1.8 KiB
C++
106 lines
1.8 KiB
C++
//
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// Checksum.h
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//
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// Library: Foundation
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// Package: Core
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// Module: Checksum
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//
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// Definition of the Checksum class.
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//
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// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_Checksum_INCLUDED
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#define Foundation_Checksum_INCLUDED
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#include "Poco/Foundation.h"
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#include "Poco/ChecksumImpl.h"
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namespace Poco {
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class Foundation_API Checksum
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/// This class calculates checksums for arbitrary data.
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{
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public:
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enum Type
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{
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TYPE_ADLER32 = ChecksumImpl::TYPE_ADLER32_IMPL,
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TYPE_CRC32 = ChecksumImpl::TYPE_CRC32_IMPL,
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TYPE_CRC64 = ChecksumImpl::TYPE_CRC64_IMPL
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};
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Checksum();
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/// Creates a CRC-32 checksum initialized to 0.
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Checksum(Type t);
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/// Creates the Checksum, using the given type.
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~Checksum();
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/// Destroys the Checksum.
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void update(const char* data, unsigned length);
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/// Updates the checksum with the given data.
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void update(const std::string& data);
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/// Updates the checksum with the given data.
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void update(char data);
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/// Updates the checksum with the given data.
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Poco::UInt64 checksum() const;
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/// Returns the calculated checksum.
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Type type() const;
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/// Which type of checksum are we calculating.
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private:
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ChecksumImpl* _pImpl;
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};
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//
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// inlines
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//
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inline void Checksum::update(const std::string& data)
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{
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_pImpl->update(data.c_str(), static_cast<unsigned int>(data.size()));
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}
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inline void Checksum::update(char c)
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{
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_pImpl->update(&c, 1);
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}
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inline void Checksum::update(const char* data, unsigned length)
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{
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_pImpl->update(data, length);
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}
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inline Poco::UInt64 Checksum::checksum() const
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{
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return _pImpl->checksum();
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}
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inline Checksum::Type Checksum::type() const
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{
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return static_cast<Checksum::Type>(_pImpl->type());
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}
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} // namespace Poco
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#endif // Foundation_Checksum_INCLUDED
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