thin-provisioning-tools/persistent-data/checksum.h

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// Copyright (C) 2011 Red Hat, Inc. All rights reserved.
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//
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// This file is part of the thin-provisioning-tools source.
//
// thin-provisioning-tools is free software: you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// thin-provisioning-tools is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with thin-provisioning-tools. If not, see
// <http://www.gnu.org/licenses/>.
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#ifndef CHECKSUM_H
#define CHECKSUM_H
#include <stdint.h>
//----------------------------------------------------------------
namespace base {
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class crc32c {
public:
crc32c(uint32_t xor_value);
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void append(void const *buffer, unsigned len);
uint32_t get_sum() const;
private:
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uint32_t xor_value_;
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uint32_t sum_;
};
}
//----------------------------------------------------------------
#endif