git.m6w6.name Git - awesomized/libmemcached/blob - src/libhashkit/has.cc

   1 /*
   2     +--------------------------------------------------------------------+
   3     | libmemcached - C/C++ Client Library for memcached                  |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted under the terms of the BSD license.    |
   7     | You should have received a copy of the license in a bundled file   |
   8     | named LICENSE; in case you did not receive a copy you can review   |
   9     | the terms online at: https://opensource.org/licenses/BSD-3-Clause  |
  10     +--------------------------------------------------------------------+
  11     | Copyright (c) 2006-2014 Brian Aker   https://datadifferential.com/ |
  12     | Copyright (c) 2020 Michael Wallner   <mike@php.net>                |
  13     +--------------------------------------------------------------------+
  14 */
  15
  16 #include "libhashkit/common.h"
  17
  18 bool libhashkit_has_algorithm(const hashkit_hash_algorithm_t algo) {
  19   switch (algo) {
  20   case HASHKIT_HASH_FNV1_64:
  21   case HASHKIT_HASH_FNV1A_64:
  22 #if __WORDSIZE == 64 && defined(HAVE_FNV64_HASH)
  23     return true;
  24 #else
  25     return false;
  26 #endif
  27
  28   case HASHKIT_HASH_HSIEH:
  29 #ifdef HAVE_HSIEH_HASH
  30     return true;
  31 #else
  32     return false;
  33 #endif
  34
  35   case HASHKIT_HASH_MURMUR3:
  36   case HASHKIT_HASH_MURMUR:
  37 #ifdef HAVE_MURMUR_HASH
  38     return true;
  39 #else
  40     return false;
  41 #endif
  42
  43   case HASHKIT_HASH_FNV1_32:
  44   case HASHKIT_HASH_FNV1A_32:
  45   case HASHKIT_HASH_DEFAULT:
  46   case HASHKIT_HASH_MD5:
  47   case HASHKIT_HASH_CRC:
  48   case HASHKIT_HASH_JENKINS:
  49   case HASHKIT_HASH_CUSTOM:
  50     return true;
  51
  52   case HASHKIT_HASH_MAX:
  53     break;
  54   }
  55
  56   return false;
  57 }