mirror of
https://github.com/matrix-construct/construct
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120 lines
4 KiB
C++
120 lines
4 KiB
C++
/*
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* ircd-ratbox: A slightly useful ircd.
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* hash.h: A header for the ircd hashtable code.
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*
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* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2004 ircd-ratbox development team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#pragma once
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#define HAVE_IRCD_HASH_H
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#ifdef __cplusplus
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namespace ircd {
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extern rb_dictionary *nd_dict;
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extern rb_radixtree *resv_tree;
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/* Magic value for FNV hash functions */
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#define FNV1_32_INIT 0x811c9dc5UL
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/* Client hash table size, used in hash.c/s_debug.c */
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#define U_MAX_BITS 17
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#define U_MAX 131072 /* 2^17 */
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/* Client connid hash table size, used in hash.c */
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#define CLI_CONNID_MAX 4096
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/* Channel hash table size, hash.c/s_debug.c */
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#define CH_MAX_BITS 16
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#define CH_MAX 65536 /* 2^16 */
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/* hostname hash table size */
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#define HOST_MAX_BITS 17
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#define HOST_MAX 131072 /* 2^17 */
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/* RESV/XLINE hash table size, used in hash.c */
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#define R_MAX_BITS 10
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#define R_MAX 1024 /* 2^10 */
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#define HASH_WALK(i, max, ptr, table) for (i = 0; i < max; i++) { RB_DLINK_FOREACH(ptr, table[i].head)
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#define HASH_WALK_SAFE(i, max, ptr, nptr, table) for (i = 0; i < max; i++) { RB_DLINK_FOREACH_SAFE(ptr, nptr, table[i].head)
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#define HASH_WALK_END }
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struct ConfItem;
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struct nd_entry;
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extern uint32_t fnv_hash_upper(const unsigned char *s, int bits);
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extern uint32_t fnv_hash(const unsigned char *s, int bits);
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extern uint32_t fnv_hash_len(const unsigned char *s, int bits, int len);
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extern uint32_t fnv_hash_upper_len(const unsigned char *s, int bits, int len);
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inline auto
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fnv_hash_upper(const char *const &s, const int &bits)
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{
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return fnv_hash_upper(reinterpret_cast<const uint8_t *>(s), bits);
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}
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inline auto
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fnv_hash(const char *const &s, const int &bits)
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{
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return fnv_hash(reinterpret_cast<const uint8_t *>(s), bits);
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}
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inline auto
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fnv_hash_len(const char *const &s, const int &bits, const int &len)
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{
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return fnv_hash_len(reinterpret_cast<const uint8_t *>(s), bits, len);
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}
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inline auto
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fnv_hash_upper_len(const char *const &s, const int &bits, const int &len)
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{
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return fnv_hash_upper_len(reinterpret_cast<const uint8_t *>(s), bits, len);
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}
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extern void init_hash(void);
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extern void add_to_client_hash(const char *name, client::client *client);
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extern void del_from_client_hash(const char *name, client::client *client);
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extern client::client *find_client(const char *name);
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extern client::client *find_named_client(const char *name);
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extern client::client *find_server(client::client *source_p, const char *name);
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extern void add_to_id_hash(const char *, client::client *);
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extern void del_from_id_hash(const char *name, client::client *client);
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extern client::client *find_id(const char *name);
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extern void add_to_hostname_hash(const char *, client::client *);
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extern void del_from_hostname_hash(const char *, client::client *);
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extern rb_dlink_node *find_hostname(const char *);
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extern void add_to_resv_hash(const char *name, struct ConfItem *aconf);
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extern void del_from_resv_hash(const char *name, struct ConfItem *aconf);
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extern struct ConfItem *hash_find_resv(const char *name);
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extern void clear_resv_hash(void);
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void add_to_cli_connid_hash(client::client *client_p, uint32_t id);
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void del_from_cli_connid_hash(uint32_t id);
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client::client *find_cli_connid_hash(uint32_t connid);
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} // namespace ircd
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#endif // __cplusplus
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