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/*
* Phusion Passenger - https://www.phusionpassenger.com/
* Copyright (c) 2014-2018 Phusion Holding B.V.
*
* "Passenger", "Phusion Passenger" and "Union Station" are registered
* trademarks of Phusion Holding B.V.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef _PASSENGER_ALGORITHMS_HASHER_H_
#define _PASSENGER_ALGORITHMS_HASHER_H_
#include <boost/cstdint.hpp>
namespace Passenger {
// TODO: use SpookyHash on x86_64
// TODO: use streaming murmurhash implementation: https://github.com/c9/murmur3
struct JenkinsHash {
static const boost::uint32_t EMPTY_STRING_HASH = 0;
boost::uint32_t hash;
JenkinsHash()
: hash(0)
{ }
void update(const char *data, unsigned int size);
boost::uint32_t finalize();
void reset() {
hash = 0;
}
};
typedef JenkinsHash Hasher;
} // namespace Passenger
#endif /* _PASSENGER_ALGORITHMS_HASHER_H_ */