usr.bin/top/hash.h

   1 /*
   2  * Copyright (c) 1984 through 2008, William LeFebvre
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *
  11  *     * Redistributions in binary form must reproduce the above
  12  * copyright notice, this list of conditions and the following disclaimer
  13  * in the documentation and/or other materials provided with the
  14  * distribution.
  15  *
  16  *     * Neither the name of William LeFebvre nor the names of other
  17  * contributors may be used to endorse or promote products derived from
  18  * this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 /* hash.m4h */
  34
  35 /* Interface definition for hash.c */
  36
  37 /* The file hash.h is generated from hash.m4h via the preprocessor M4 */
  38
  39 #ifndef _HASH_H
  40 #define _HASH_H
  41
  42 #include <sys/types.h>
  43
  44 typedef struct pidthr_t {
  45     pid_t k_pid;
  46     id_t k_thr;
  47 } pidthr_t;
  48
  49 typedef struct llistitem {
  50     void *datum;
  51     struct llistitem *next;
  52 } llistitem;
  53
  54 typedef struct llist {
  55     llistitem *head;
  56     unsigned int count;
  57 } llist;
  58
  59 typedef struct bucket {
  60     llist list;
  61 } bucket_t;
  62
  63 typedef struct hash_table {
  64     int num_buckets;
  65     bucket_t *buckets;
  66 } hash_table;
  67
  68 typedef struct hash_pos {
  69     int num_buckets;
  70     int curr;
  71     bucket_t *hash_bucket;
  72     llistitem *ll_item;
  73     llistitem *ll_last;
  74 } hash_pos;
  75
  76 hash_table *hash_create(int num);
  77 void hash_sizeinfo(unsigned int *sizes, int max, hash_table *ht);
  78
  79
  80
  81
  82 typedef struct hash_item_uint {
  83     unsigned int key;
  84     void *value;
  85 } hash_item_uint;
  86
  87 void *hash_add_uint(hash_table *ht, unsigned int key, void *value);
  88 void *hash_replace_uint(hash_table *ht, unsigned int key, void *value);
  89 void *hash_lookup_uint(hash_table *ht, unsigned int key);
  90 void *hash_remove_uint(hash_table *ht, unsigned int key);
  91 hash_item_uint *hash_first_uint(hash_table *ht, hash_pos *pos);
  92 hash_item_uint *hash_next_uint(hash_pos *pos);
  93 void *hash_remove_pos_uint(hash_pos *pos);
  94
  95
  96 typedef struct hash_item_pid {
  97     pid_t key;
  98     void *value;
  99 } hash_item_pid;
 100
 101 void *hash_add_pid(hash_table *ht, pid_t key, void *value);
 102 void *hash_replace_pid(hash_table *ht, pid_t key, void *value);
 103 void *hash_lookup_pid(hash_table *ht, pid_t key);
 104 void *hash_remove_pid(hash_table *ht, pid_t key);
 105 hash_item_pid *hash_first_pid(hash_table *ht, hash_pos *pos);
 106 hash_item_pid *hash_next_pid(hash_pos *pos);
 107 void *hash_remove_pos_pid(hash_pos *pos);
 108
 109
 110 typedef struct hash_item_string {
 111     char * key;
 112     void *value;
 113 } hash_item_string;
 114
 115 void *hash_add_string(hash_table *ht, char * key, void *value);
 116 void *hash_replace_string(hash_table *ht, char * key, void *value);
 117 void *hash_lookup_string(hash_table *ht, char * key);
 118 void *hash_remove_string(hash_table *ht, char * key);
 119 hash_item_string *hash_first_string(hash_table *ht, hash_pos *pos);
 120 hash_item_string *hash_next_string(hash_pos *pos);
 121 void *hash_remove_pos_string(hash_pos *pos);
 122
 123
 124 typedef struct hash_item_pidthr {
 125     pidthr_t key;
 126     void *value;
 127 } hash_item_pidthr;
 128
 129 void *hash_add_pidthr(hash_table *ht, pidthr_t key, void *value);
 130 void *hash_replace_pidthr(hash_table *ht, pidthr_t key, void *value);
 131 void *hash_lookup_pidthr(hash_table *ht, pidthr_t key);
 132 void *hash_remove_pidthr(hash_table *ht, pidthr_t key);
 133 hash_item_pidthr *hash_first_pidthr(hash_table *ht, hash_pos *pos);
 134 hash_item_pidthr *hash_next_pidthr(hash_pos *pos);
 135 void *hash_remove_pos_pidthr(hash_pos *pos);
 136
 137 #if HAVE_LWPID_T
 138
 139 typedef struct hash_item_lwpid {
 140     lwpid_t key;
 141     void *value;
 142 } hash_item_lwpid;
 143
 144 void *hash_add_lwpid(hash_table *ht, lwpid_t key, void *value);
 145 void *hash_replace_lwpid(hash_table *ht, lwpid_t key, void *value);
 146 void *hash_lookup_lwpid(hash_table *ht, lwpid_t key);
 147 void *hash_remove_lwpid(hash_table *ht, lwpid_t key);
 148 hash_item_lwpid *hash_first_lwpid(hash_table *ht, hash_pos *pos);
 149 hash_item_lwpid *hash_next_lwpid(hash_pos *pos);
 150 void *hash_remove_pos_lwpid(hash_pos *pos);
 151
 152 #endif
 153
 154
 155 #endif