hash-fnv.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2012 Lawrence Livermore National Laboratory
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Peter D. Barnes, Jr. <pdbarnes@llnl.gov>
 */

#ifndef HASH_FNV_H
#define HASH_FNV_H

#include "hash-function.h"

namespace ns3 {

namespace Hash {

namespace Function {

class Fnv1a : public Implementation
{
public:
  Fnv1a ();
  uint32_t  GetHash32  (const char * buffer, const size_t size);
  uint64_t  GetHash64  (const char * buffer, const size_t size);
  virtual void clear (void);

private:
  enum seed
  {
    SEED = 0x8BADF00D  // Ate bad food
  };

  uint32_t m_hash32;
  uint64_t m_hash64;

};  // class Fnv1a

}  // namespace Function

}  // namespace Hash

}  // namespace ns3

#endif  /* HASH_FNV_H */