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jfr.im git - solanum.git/blob - include/hash.h
2 * ircd-ratbox: A slightly useful ircd.
3 * hash.h: A header for the ircd hashtable code.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2004 ircd-ratbox development team
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
24 * $Id: hash.h 3177 2007-02-01 00:19:14Z jilles $
27 #ifndef INCLUDED_hash_h
28 #define INCLUDED_hash_h
32 extern rb_dlink_list
*clientTable
;
33 extern rb_dlink_list
*channelTable
;
34 extern rb_dlink_list
*idTable
;
35 extern rb_dlink_list
*resvTable
;
36 extern rb_dlink_list
*hostTable
;
37 extern rb_dlink_list
*helpTable
;
39 extern struct Dictionary
*nd_dict
;
41 /* Magic value for FNV hash functions */
42 #define FNV1_32_INIT 0x811c9dc5UL
44 /* Client hash table size, used in hash.c/s_debug.c */
46 #define U_MAX 131072 /* 2^17 */
48 /* Client connid hash table size, used in hash.c */
49 #define CLI_CONNID_MAX 4096
51 /* Channel hash table size, hash.c/s_debug.c */
52 #define CH_MAX_BITS 16
53 #define CH_MAX 65536 /* 2^16 */
55 /* hostname hash table size */
56 #define HOST_MAX_BITS 17
57 #define HOST_MAX 131072 /* 2^17 */
59 /* RESV/XLINE hash table size, used in hash.c */
61 #define R_MAX 1024 /* 2^10 */
64 #define HASH_WALK(i, max, ptr, table) for (i = 0; i < max; i++) { RB_DLINK_FOREACH(ptr, table[i].head)
65 #define HASH_WALK_SAFE(i, max, ptr, nptr, table) for (i = 0; i < max; i++) { RB_DLINK_FOREACH_SAFE(ptr, nptr, table[i].head)
66 #define HASH_WALK_END }
74 extern u_int32_t
fnv_hash_upper(const unsigned char *s
, int bits
);
75 extern u_int32_t
fnv_hash(const unsigned char *s
, int bits
);
76 extern u_int32_t
fnv_hash_len(const unsigned char *s
, int bits
, int len
);
77 extern u_int32_t
fnv_hash_upper_len(const unsigned char *s
, int bits
, int len
);
79 extern void init_hash(void);
81 extern void add_to_client_hash(const char *name
, struct Client
*client
);
82 extern void del_from_client_hash(const char *name
, struct Client
*client
);
83 extern struct Client
*find_client(const char *name
);
84 extern struct Client
*find_named_client(const char *name
);
85 extern struct Client
*find_server(struct Client
*source_p
, const char *name
);
87 extern void add_to_id_hash(const char *, struct Client
*);
88 extern void del_from_id_hash(const char *name
, struct Client
*client
);
89 extern struct Client
*find_id(const char *name
);
91 extern struct Channel
*get_or_create_channel(struct Client
*client_p
, const char *chname
, int *isnew
);
92 extern void del_from_channel_hash(const char *name
, struct Channel
*chan
);
93 extern struct Channel
*find_channel(const char *name
);
95 extern void add_to_hostname_hash(const char *, struct Client
*);
96 extern void del_from_hostname_hash(const char *, struct Client
*);
97 extern rb_dlink_node
*find_hostname(const char *);
99 extern void add_to_resv_hash(const char *name
, struct ConfItem
*aconf
);
100 extern void del_from_resv_hash(const char *name
, struct ConfItem
*aconf
);
101 extern struct ConfItem
*hash_find_resv(const char *name
);
102 extern void clear_resv_hash(void);
104 void add_to_cli_connid_hash(struct Client
*client_p
);
105 void del_from_cli_connid_hash(struct Client
*client_p
);
106 struct Client
*find_cli_connid_hash(int connid
);
108 void add_to_zconnid_hash(struct Client
*client_p
);
109 void del_from_zconnid_hash(struct Client
*client_p
);
111 extern void hash_stats(struct Client
*);
113 #endif /* INCLUDED_hash_h */