ceph/src/rocksdb/util/xxhash.cc

   1 //  Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
   2 //  This source code is licensed under both the GPLv2 (found in the
   3 //  COPYING file in the root directory) and Apache 2.0 License
   4 //  (found in the LICENSE.Apache file in the root directory).
   5 /*
   6  * xxHash - Extremely Fast Hash algorithm
   7  * Copyright (C) 2012-2020 Yann Collet
   8  *
   9  * BSD 2-Clause License (https://www.opensource.org/licenses/bsd-license.php)
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions are
  13  * met:
  14  *
  15  *    * Redistributions of source code must retain the above copyright
  16  *      notice, this list of conditions and the following disclaimer.
  17  *    * Redistributions in binary form must reproduce the above
  18  *      copyright notice, this list of conditions and the following disclaimer
  19  *      in the documentation and/or other materials provided with the
  20  *      distribution.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  24  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  25  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  26  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  27  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  28  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  32  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * You can contact the author at:
  35  *   - xxHash homepage: https://www.xxhash.com
  36  *   - xxHash source repository: https://github.com/Cyan4973/xxHash
  37  */
  38
  39 /*
  40  * xxhash.c instantiates functions defined in xxhash.h
  41  */
  42 // clang-format off
  43 #ifndef XXH_STATIC_LINKING_ONLY
  44 #define XXH_STATIC_LINKING_ONLY   /* access advanced declarations */
  45 #endif // !defined(XXH_STATIC_LINKING_ONLY)
  46 #define XXH_IMPLEMENTATION   /* access definitions */
  47
  48 #include "xxhash.h"