NetBSD/external/bsd/top/dist/hash.m4h

104 lines
3.0 KiB
Plaintext
Executable File

/*
* Copyright (c) 1984 through 2008, William LeFebvre
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of William LeFebvre nor the names of other
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
* OWNER 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.
*/
/* hash.m4h */
/* Interface definition for hash.c */
/* The file hash.h is generated from hash.m4h via the preprocessor M4 */
#ifndef _HASH_H
#define _HASH_H
#include <sys/types.h>
typedef struct pidthr_t {
pid_t k_pid;
id_t k_thr;
} pidthr_t;
typedef struct llistitem {
void *datum;
struct llistitem *next;
} llistitem;
typedef struct llist {
llistitem *head;
unsigned int count;
} llist;
typedef struct bucket {
llist list;
} bucket_t;
typedef struct hash_table {
int num_buckets;
bucket_t *buckets;
} hash_table;
typedef struct hash_pos {
int num_buckets;
int curr;
bucket_t *hash_bucket;
llistitem *ll_item;
llistitem *ll_last;
} hash_pos;
hash_table *hash_create(int num);
void hash_sizeinfo(unsigned int *sizes, int max, hash_table *ht);
define(`HASH_TYPE_TMPL', `
typedef struct hash_item_$1 {
$2 key;
void *value;
} hash_item_$1;
void *hash_add_$1(hash_table *ht, $2 key, void *value);
void *hash_replace_$1(hash_table *ht, $2 key, void *value);
void *hash_lookup_$1(hash_table *ht, $2 key);
void *hash_remove_$1(hash_table *ht, $2 key);
hash_item_$1 *hash_first_$1(hash_table *ht, hash_pos *pos);
hash_item_$1 *hash_next_$1(hash_pos *pos);
void *hash_remove_pos_$1(hash_pos *pos);
')
HASH_TYPE_TMPL(`uint', `unsigned int')
HASH_TYPE_TMPL(`pid', `pid_t')
HASH_TYPE_TMPL(`string', `char *')
HASH_TYPE_TMPL(`pidthr', `pidthr_t')
#if HAVE_LWPID_T
HASH_TYPE_TMPL(`lwpid', `lwpid_t')
#endif
#endif