X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=src%2Flibhashkit%2Fmurmur.cc;h=c1451639c57a67a069683892e4f5972f24f1262c;hb=7883b530881983213dffaa6c71ace9204bedb82a;hp=a2ff52163113582b181dd602c8a8e583e2ef894c;hpb=5bb6f975322d3da0caf082b8d890132194d0a4ea;p=awesomized%2Flibmemcached diff --git a/src/libhashkit/murmur.cc b/src/libhashkit/murmur.cc index a2ff5216..c1451639 100644 --- a/src/libhashkit/murmur.cc +++ b/src/libhashkit/murmur.cc @@ -1,5 +1,5 @@ /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab: - * + * * HashKit library * * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/ @@ -56,6 +56,10 @@ #ifdef HAVE_MURMUR_HASH +#ifdef BYTESWAP_HEADER +# include BYTESWAP_HEADER +#endif + #include uint32_t hashkit_murmur(const char *key, size_t length, void *context) @@ -81,8 +85,11 @@ uint32_t hashkit_murmur(const char *key, size_t length, void *context) while(length >= 4) { - unsigned int k; - memcpy(&k, data, sizeof(unsigned int)); + uint32_t k; + memcpy(&k, data, sizeof(k)); +#if WORDS_BIGENDIAN + k = BYTESWAP_32(k); +#endif k *= m; k ^= k >> r; @@ -96,15 +103,15 @@ uint32_t hashkit_murmur(const char *key, size_t length, void *context) } // Handle the last few bytes of the input array - - switch(length) - { - case 3: h ^= ((uint32_t)data[2]) << 16; /* fall through */ - case 2: h ^= ((uint32_t)data[1]) << 8; /* fall through */ - case 1: h ^= data[0]; - h *= m; - default: break; - }; + if (length) { + uint32_t k = 0; + memcpy(&k, data, length); +#if WORDS_BIGENDIAN + k = BYTESWAP_32(k); +#endif + h ^= k; + h *= m; + } /* Do a few final mixes of the hash to ensure the last few bytes are