~brianaker/libmemcached/1164440

/*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  HashKit library

 *

 *  Copyright (C) 2010-2012 Data Differential, http://datadifferential.com/

 *

 *  Redistribution and use in source and binary forms, with or without

 *  modification, are permitted provided that the following conditions are

 *  met:

 *

 *      * Redistributions of source code must retain the above copyright

 *  notice, this list of conditions and the following disclaimer.

 *

 *      * Redistributions in binary form must reproduce the above

 *  copyright notice, this list of conditions and the following disclaimer

 *  in the documentation and/or other materials provided with the

 *  distribution.

 *

 *      * The names of its contributors may not be used to endorse or

 *  promote products derived from this software without specific prior

 *  written permission.

 *

 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

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 *

 */

#include <libhashkit/common.h>

uint32_t hashkit_digest(const hashkit_st *self, const char *key, size_t key_length)

{

  return self->base_hash.function(key, key_length, self->base_hash.context);

}

uint32_t libhashkit_digest(const char *key, size_t key_length, hashkit_hash_algorithm_t hash_algorithm)

{

  switch (hash_algorithm)

  {

  case HASHKIT_HASH_DEFAULT:

    return libhashkit_one_at_a_time(key, key_length);

  case HASHKIT_HASH_MD5:

    return libhashkit_md5(key, key_length);

  case HASHKIT_HASH_CRC:

    return libhashkit_crc32(key, key_length);

  case HASHKIT_HASH_FNV1_64:

    return libhashkit_fnv1_64(key, key_length);

  case HASHKIT_HASH_FNV1A_64:

    return libhashkit_fnv1a_64(key, key_length);

  case HASHKIT_HASH_FNV1_32:

    return libhashkit_fnv1_32(key, key_length);

  case HASHKIT_HASH_FNV1A_32:

    return libhashkit_fnv1a_32(key, key_length);

  case HASHKIT_HASH_HSIEH:

#ifdef HAVE_HSIEH_HASH

    return libhashkit_hsieh(key, key_length);

#else

    return 1;

#endif

  case HASHKIT_HASH_MURMUR3:

    return libhashkit_murmur3(key, key_length);

  case HASHKIT_HASH_MURMUR:

#ifdef HAVE_MURMUR_HASH

    return libhashkit_murmur(key, key_length);

#else

    return 1;

#endif

  case HASHKIT_HASH_JENKINS:

    return libhashkit_jenkins(key, key_length);

  case HASHKIT_HASH_CUSTOM:

  case HASHKIT_HASH_MAX:

  default:

    if (DEBUG)

    {

      fprintf(stderr, "hashkit_hash_t was extended but libhashkit_generate_value was not updated\n");

      fflush(stderr);

      assert(0);

    }

    break;

  }

  return 1;

}