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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ORC_MURMUR3_HH
#define ORC_MURMUR3_HH
#include "orc/orc-config.hh"
namespace orc {
class Murmur3 {
public:
static const uint32_t DEFAULT_SEED = 104729;
static const uint64_t NULL_HASHCODE = 2862933555777941757LL;
static uint64_t hash64(const uint8_t* data, uint32_t len);
private:
static uint64_t fmix64(uint64_t value);
static uint64_t hash64(const uint8_t* data, uint32_t len, uint32_t seed);
};
} // namespace orc
#endif // ORC_MURMUR3_HH
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