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/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
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* Copyright (C) 2009 Brian Aker All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* * The names of its contributors may not be used to endorse or
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* promote products derived from this software without specific prior
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <libhashkit/common.h>
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#if __WORDSIZE == 64 && defined(HAVE_FNV64_HASH)
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/* FNV hash'es lifted from Dustin Sallings work */
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static uint64_t FNV_64_INIT= 0xcbf29ce484222325;
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static uint64_t FNV_64_PRIME= 0x100000001b3;
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uint32_t hashkit_fnv1_64(const char *key, size_t key_length, void *)
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/* Thanks to pierre@demartines.com for the pointer */
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uint64_t hash= FNV_64_INIT;
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for (size_t x= 0; x < key_length; x++)
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hash ^= (uint64_t)key[x];
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return (uint32_t)hash;
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uint32_t hashkit_fnv1a_64(const char *key, size_t key_length, void *)
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uint32_t hash= (uint32_t) FNV_64_INIT;
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for (size_t x= 0; x < key_length; x++)
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uint32_t val= (uint32_t)key[x];
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hash *= (uint32_t) FNV_64_PRIME;
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uint32_t hashkit_fnv1_64(const char *, size_t, void *)
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uint32_t hashkit_fnv1a_64(const char *, size_t, void *)