switching back on nd_dict instead of ratbox3 hash functions

[irc/rqf/shadowircd.git] / include / hash.h

/*\r
 *  ircd-ratbox: A slightly useful ircd.\r
 *  hash.h: A header for the ircd hashtable code.\r
 *\r
 *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center\r
 *  Copyright (C) 1996-2002 Hybrid Development Team\r
 *  Copyright (C) 2002-2005 ircd-ratbox development team\r
 *\r
 *  This program is free software; you can redistribute it and/or modify\r
 *  it under the terms of the GNU General Public License as published by\r
 *  the Free Software Foundation; either version 2 of the License, or\r
 *  (at your option) any later version.\r
 *\r
 *  This program is distributed in the hope that it will be useful,\r
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of\r
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
 *  GNU General Public License for more details.\r
 *\r
 *  You should have received a copy of the GNU General Public License\r
 *  along with this program; if not, write to the Free Software\r
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301\r
 *  USA\r
 *\r
 *  $Id: hash.h 24794 2007-12-28 02:36:59Z androsyn $\r
 */\r
\r
#ifndef INCLUDED_hash_h\r
#define INCLUDED_hash_h\r
\r
extern struct Dictionary *nd_dict;\r
\r
extern rb_dlink_list resvTable[];\r
extern rb_dlink_list ndTable[];\r
\r
/* Magic value for FNV hash functions */\r
#define FNV1_32_INIT 0x811c9dc5UL\r
\r
/* Client hash table size, used in hash.c/s_debug.c */\r
#define U_MAX_BITS 17\r
#define U_MAX (1<<U_MAX_BITS)\r
\r
/* Client fd hash table size, used in hash.c */\r
#define CLI_FD_MAX 4096\r
\r
/* Channel hash table size, hash.c/s_debug.c */\r
#define CH_MAX_BITS 16\r
#define CH_MAX (1<<CH_MAX_BITS) /* 2^16 */\r
\r
/* hostname hash table size */\r
#define HOST_MAX_BITS 17\r
#define HOST_MAX (1<<HOST_MAX_BITS) /* 2^17 */\r
\r
/* RESV/XLINE hash table size, used in hash.c */\r
#define R_MAX_BITS 10\r
#define R_MAX (1<<R_MAX_BITS) /* 2^10 */\r
\r
\r
#define HASH_WALK(i, max, ptr, table) for (i = 0; i < max; i++) { RB_DLINK_FOREACH(ptr, table[i].head)\r
#define HASH_WALK_SAFE(i, max, ptr, nptr, table) for (i = 0; i < max; i++) { RB_DLINK_FOREACH_SAFE(ptr, nptr, table[i].head)\r
#define HASH_WALK_END }\r
\r
typedef enum\r
{\r
	HASH_CLIENT,\r
	HASH_ID,\r
	HASH_CHANNEL,\r
	HASH_HOSTNAME,\r
	HASH_RESV\r
} hash_type;\r
\r
struct Client;\r
struct Channel;\r
struct ConfItem;\r
struct cachefile;\r
struct nd_entry;\r
\r
uint32_t fnv_hash_upper(const unsigned char *s, unsigned int bits, unsigned int unused);\r
uint32_t fnv_hash(const unsigned char *s, unsigned int bits, unsigned int unused);\r
uint32_t fnv_hash_len(const unsigned char *s, unsigned int bits, unsigned int len);\r
uint32_t fnv_hash_upper_len(const unsigned char *s, unsigned int bits, unsigned int len);\r
\r
void init_hash(void);\r
\r
void add_to_hash(hash_type, const char *, void *);\r
void del_from_hash(hash_type, const char *, void *);\r
\r
struct Client *find_any_client(const char *name);\r
struct Client *find_client(const char *name);\r
struct Client *find_named_client(const char *name);\r
struct Client *find_server(struct Client *source_p, const char *name);\r
\r
struct Client *find_id(const char *name);\r
\r
struct Channel *get_or_create_channel(struct Client *client_p, const char *chname, int *isnew);\r
struct Channel *find_channel(const char *name);\r
\r
rb_dlink_node *find_hostname(const char *);\r
\r
struct ConfItem *hash_find_resv(const char *name);\r
void clear_resv_hash(void);\r
\r
void add_to_help_hash(const char *name, struct cachefile *hptr);\r
void clear_help_hash(void);\r
struct cachefile *hash_find_help(const char *name, int flags);\r
\r
void add_to_nd_hash(const char *name, struct nd_entry *nd);\r
struct nd_entry *hash_find_nd(const char *name);\r
\r
void add_to_cli_fd_hash(struct Client *client_p);\r
void del_from_cli_fd_hash(struct Client *client_p);\r
struct Client *find_cli_fd_hash(int fd);\r
                                  \r
void hash_stats(struct Client *);\r
\r
#endif /* INCLUDED_hash_h */\r