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suricata/src/util-hash.h

62 lines
1.9 KiB
C

/* Copyright (C) 2007-2010 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Victor Julien <victor@inliniac.net>
*/
#ifndef __HASH_H__
#define __HASH_H__
/* hash bucket structure */
typedef struct HashTableBucket_ {
void *data;
uint16_t size;
struct HashTableBucket_ *next;
} HashTableBucket;
/* hash table structure */
typedef struct HashTable_ {
HashTableBucket **array;
uint32_t array_size;
#ifdef UNITTESTS
uint32_t count;
#endif
uint32_t (*Hash)(struct HashTable_ *, void *, uint16_t);
char (*Compare)(void *, uint16_t, void *, uint16_t);
void (*Free)(void *);
} HashTable;
#define HASH_NO_SIZE 0
/* prototypes */
HashTable* HashTableInit(uint32_t, uint32_t (*Hash)(struct HashTable_ *, void *, uint16_t), char (*Compare)(void *, uint16_t, void *, uint16_t), void (*Free)(void *));
void HashTableFree(HashTable *);
void HashTablePrint(HashTable *);
int HashTableAdd(HashTable *, void *, uint16_t);
int HashTableRemove(HashTable *, void *, uint16_t);
void *HashTableLookup(HashTable *, void *, uint16_t);
uint32_t HashTableGenericHash(HashTable *, void *, uint16_t);
char HashTableDefaultCompare(void *, uint16_t, void *, uint16_t);
void HashTableRegisterTests(void);
#endif /* __HASH_H__ */