You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
100 lines
3.2 KiB
100 lines
3.2 KiB
/*
|
|
* Copyright 2012 Samy Al Bahra.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _CK_HS_H
|
|
#define _CK_HS_H
|
|
|
|
#include <ck_pr.h>
|
|
|
|
#include <ck_cc.h>
|
|
#include <ck_malloc.h>
|
|
#include <ck_md.h>
|
|
#include <ck_stdint.h>
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
|
|
#define CK_HS_MODE_SPMC 1
|
|
#define CK_HS_MODE_DIRECT 2
|
|
#define CK_HS_MODE_OBJECT 8
|
|
|
|
/* Currently unsupported. */
|
|
#define CK_HS_MODE_MPMC (void)
|
|
|
|
/*
|
|
* Hash callback function.
|
|
*/
|
|
typedef unsigned long ck_hs_hash_cb_t(const void *, unsigned long);
|
|
|
|
/*
|
|
* Returns pointer to object if objects are equivalent.
|
|
*/
|
|
typedef bool ck_hs_compare_cb_t(const void *, const void *);
|
|
|
|
#if defined(CK_MD_POINTER_PACK_ENABLE) && defined(CK_MD_VMA_BITS)
|
|
#define CK_HS_PP
|
|
#define CK_HS_KEY_MASK ((1U << ((sizeof(void *) * 8) - CK_MD_VMA_BITS)) - 1)
|
|
#endif
|
|
|
|
struct ck_hs_map;
|
|
struct ck_hs {
|
|
struct ck_malloc *m;
|
|
struct ck_hs_map *map;
|
|
unsigned int mode;
|
|
unsigned long seed;
|
|
ck_hs_hash_cb_t *hf;
|
|
ck_hs_compare_cb_t *compare;
|
|
};
|
|
typedef struct ck_hs ck_hs_t;
|
|
|
|
struct ck_hs_stat {
|
|
unsigned long tombstones;
|
|
unsigned long n_entries;
|
|
unsigned int probe_maximum;
|
|
};
|
|
|
|
struct ck_hs_iterator {
|
|
void **cursor;
|
|
unsigned long offset;
|
|
};
|
|
typedef struct ck_hs_iterator ck_hs_iterator_t;
|
|
|
|
#define CK_HS_ITERATOR_INITIALIZER { NULL, 0 }
|
|
|
|
void ck_hs_iterator_init(ck_hs_iterator_t *);
|
|
bool ck_hs_next(ck_hs_t *, ck_hs_iterator_t *, void **);
|
|
bool ck_hs_init(ck_hs_t *, unsigned int, ck_hs_hash_cb_t *, ck_hs_compare_cb_t *, struct ck_malloc *, unsigned long, unsigned long);
|
|
void ck_hs_destroy(ck_hs_t *);
|
|
void *ck_hs_get(ck_hs_t *, unsigned long, const void *);
|
|
bool ck_hs_put(ck_hs_t *, unsigned long, const void *);
|
|
bool ck_hs_set(ck_hs_t *, unsigned long, const void *, void **);
|
|
void *ck_hs_remove(ck_hs_t *, unsigned long, const void *);
|
|
bool ck_hs_grow(ck_hs_t *, unsigned long);
|
|
unsigned long ck_hs_count(ck_hs_t *);
|
|
bool ck_hs_reset(ck_hs_t *);
|
|
void ck_hs_stat(ck_hs_t *, struct ck_hs_stat *);
|
|
|
|
#endif /* _CK_HS_H */
|