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/*
Copyright (c) 2008-2009 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
GlusterFS is free software; you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
GlusterFS 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
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see
<http://www.gnu.org/licenses/>.
*/
#ifndef __RBTHASH_TABLE_H_
#define __RBTHASH_TABLE_H_
#include "rb.h"
#include "locking.h"
#include "mem-pool.h"
#include "logging.h"
#include "common-utils.h"
#include <pthread.h>
#define GF_RBTHASH_MEMPOOL 16384 //1048576
#define GF_RBTHASH "rbthash"
struct rbthash_bucket {
struct rb_table *bucket;
gf_lock_t bucketlock;
};
typedef struct rbthash_entry {
void *data;
void *key;
int keylen;
uint32_t keyhash;
} rbthash_entry_t;
typedef uint32_t (*rbt_hasher_t) (void *data, int len);
typedef void (*rbt_data_destroyer_t) (void *data);
typedef struct rbthash_table {
int size;
int numbuckets;
struct mem_pool *entrypool;
gf_lock_t tablelock;
struct rbthash_bucket *buckets;
rbt_hasher_t hashfunc;
rbt_data_destroyer_t dfunc;
gf_boolean_t pool_alloced;
} rbthash_table_t;
extern rbthash_table_t *
rbthash_table_init (int buckets, rbt_hasher_t hfunc,
rbt_data_destroyer_t dfunc, unsigned long expected_entries,
struct mem_pool *entrypool);
extern int
rbthash_insert (rbthash_table_t *tbl, void *data, void *key, int keylen);
extern void *
rbthash_get (rbthash_table_t *tbl, void *key, int keylen);
extern void *
rbthash_remove (rbthash_table_t *tbl, void *key, int keylen);
extern void *
rbthash_replace (rbthash_table_t *tbl, void *key, int keylen, void *newdata);
extern void
rbthash_table_destroy (rbthash_table_t *tbl);
#endif
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