esp-idf/components/bt/common/osi/include/osi/hash_functions.h
2019-06-30 16:39:00 +08:00

38 lines
1.2 KiB
C

/******************************************************************************
*
* Copyright (C) 2014 Google, Inc.
*
* Licensed 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 _HASH_FUNCTIONS_H_
#define _HASH_FUNCTIONS_H_
#include "osi/hash_map.h"
typedef unsigned char hash_key_t[4];
hash_index_t hash_function_naive(const void *key);
hash_index_t hash_function_integer(const void *key);
// Hashes a pointer based only on its address value
hash_index_t hash_function_pointer(const void *key);
hash_index_t hash_function_string(const void *key);
void hash_function_blob(const unsigned char *s, unsigned int len, hash_key_t h);
#endif /* _HASH_FUNCTIONS_H_ */