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/*
* Copyright (C) Igor Sysoev
* Copyright (C) NGINX, Inc.
*/
#ifndef _NJS_DJB_HASH_H_INCLUDED_
#define _NJS_DJB_HASH_H_INCLUDED_
/* A fast and simple hash function by Daniel J. Bernstein. */
NJS_EXPORT uint32_t njs_djb_hash(const void *data, size_t len);
NJS_EXPORT uint32_t njs_djb_hash_lowcase(const void *data, size_t len);
#define NJS_DJB_HASH_INIT 5381
#define njs_djb_hash_add(hash, val) \
((uint32_t) ((((hash) << 5) + (hash)) ^ (uint32_t) (val)))
#endif /* _NJS_DJB_HASH_H_INCLUDED_ */
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