/[svn]/ircd-hybrid-7.2/src/whowas.c
ViewVC logotype

Contents of /ircd-hybrid-7.2/src/whowas.c

Parent Directory Parent Directory | Revision Log Revision Log


Revision 948 - (show annotations)
Tue Jul 21 17:34:06 2009 UTC (11 years, 7 months ago) by michael
File MIME type: text/x-chdr
File size: 4829 byte(s)
- lp64\llp64\ilp32 portability fixes

1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * whowas.c: WHOWAS user cache.
4 *
5 * Copyright (C) 2005 by the past and present ircd coders, and others.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 * USA
21 *
22 * $Id$
23 */
24
25 #include "stdinc.h"
26 #include "whowas.h"
27 #include "client.h"
28 #include "common.h"
29 #include "hash.h"
30 #include "irc_string.h"
31 #include "ircd.h"
32 #include "ircd_defs.h"
33 #include "numeric.h"
34 #include "s_serv.h"
35 #include "s_user.h"
36 #include "send.h"
37 #include "s_conf.h"
38 #include "memory.h"
39
40 /* internally defined function */
41 static void add_whowas_to_clist(struct Whowas **, struct Whowas *);
42 static void del_whowas_from_clist(struct Whowas **, struct Whowas *);
43 static void add_whowas_to_list(struct Whowas **, struct Whowas *);
44 static void del_whowas_from_list(struct Whowas **, struct Whowas *);
45
46 struct Whowas WHOWAS[NICKNAMEHISTORYLENGTH];
47 struct Whowas *WHOWASHASH[HASHSIZE];
48
49 static unsigned int whowas_next = 0;
50
51 void
52 add_history(struct Client *client_p, int online)
53 {
54 struct Whowas *who = &WHOWAS[whowas_next];
55
56 assert(client_p && client_p->servptr);
57
58 if (who->hashv != -1)
59 {
60 if (who->online)
61 del_whowas_from_clist(&(who->online->whowas),who);
62 del_whowas_from_list(&WHOWASHASH[who->hashv], who);
63 }
64
65 who->hashv = strhash(client_p->name);
66 who->logoff = CurrentTime;
67
68 /* NOTE: strcpy ok here, the sizes in the client struct MUST
69 * match the sizes in the whowas struct
70 */
71 strlcpy(who->name, client_p->name, sizeof(who->name));
72 strcpy(who->username, client_p->username);
73 strcpy(who->hostname, client_p->host);
74 strcpy(who->realname, client_p->info);
75
76 strlcpy(who->servername, client_p->servptr->name, sizeof(who->servername));
77
78 if (online)
79 {
80 who->online = client_p;
81 add_whowas_to_clist(&(client_p->whowas), who);
82 }
83 else
84 who->online = NULL;
85
86 add_whowas_to_list(&WHOWASHASH[who->hashv], who);
87 whowas_next++;
88
89 if (whowas_next == NICKNAMEHISTORYLENGTH)
90 whowas_next = 0;
91 }
92
93 void
94 off_history(struct Client *client_p)
95 {
96 struct Whowas *temp, *next;
97
98 for (temp = client_p->whowas; temp; temp=next)
99 {
100 next = temp->cnext;
101 temp->online = NULL;
102 del_whowas_from_clist(&(client_p->whowas), temp);
103 }
104 }
105
106 struct Client *
107 get_history(const char *nick, time_t timelimit)
108 {
109 struct Whowas *temp;
110
111 timelimit = CurrentTime - timelimit;
112 temp = WHOWASHASH[strhash(nick)];
113
114 for (; temp; temp = temp->next)
115 {
116 if (irccmp(nick, temp->name))
117 continue;
118 if (temp->logoff < timelimit)
119 continue;
120 return(temp->online);
121 }
122
123 return(NULL);
124 }
125
126 void
127 count_whowas_memory(unsigned int *wwu, uint64_t *wwum)
128 {
129 const struct Whowas *tmp;
130 int i;
131 unsigned int u = 0;
132 uint64_t um = 0;
133
134 /* count the number of used whowas structs in 'u' */
135 /* count up the memory used of whowas structs in um */
136 for (i = 0, tmp = &WHOWAS[0]; i < NICKNAMEHISTORYLENGTH; ++i, ++tmp)
137 {
138 if (tmp->hashv != -1)
139 {
140 ++u;
141 um += sizeof(struct Whowas);
142 }
143 }
144
145 *wwu = u;
146 *wwum = um;
147 }
148
149 void
150 init_whowas(void)
151 {
152 int i;
153
154 for (i = 0; i < NICKNAMEHISTORYLENGTH; i++)
155 {
156 memset(&WHOWAS[i], 0, sizeof(struct Whowas));
157 WHOWAS[i].hashv = -1;
158 }
159
160 for (i = 0; i < HASHSIZE; ++i)
161 WHOWASHASH[i] = NULL;
162 }
163
164 static void
165 add_whowas_to_clist(struct Whowas **bucket, struct Whowas *whowas)
166 {
167 whowas->cprev = NULL;
168
169 if ((whowas->cnext = *bucket) != NULL)
170 whowas->cnext->cprev = whowas;
171 *bucket = whowas;
172 }
173
174 static void
175 del_whowas_from_clist(struct Whowas **bucket, struct Whowas *whowas)
176 {
177 if (whowas->cprev)
178 whowas->cprev->cnext = whowas->cnext;
179 else
180 *bucket = whowas->cnext;
181 if (whowas->cnext)
182 whowas->cnext->cprev = whowas->cprev;
183 }
184
185 static void
186 add_whowas_to_list(struct Whowas **bucket, struct Whowas *whowas)
187 {
188 whowas->prev = NULL;
189
190 if ((whowas->next = *bucket) != NULL)
191 whowas->next->prev = whowas;
192 *bucket = whowas;
193 }
194
195 static void
196 del_whowas_from_list(struct Whowas **bucket, struct Whowas *whowas)
197 {
198 if (whowas->prev)
199 whowas->prev->next = whowas->next;
200 else
201 *bucket = whowas->next;
202 if (whowas->next)
203 whowas->next->prev = whowas->prev;
204 }

Properties

Name Value
svn:eol-style native
svn:keywords Id Revision

svnadmin@ircd-hybrid.org
ViewVC Help
Powered by ViewVC 1.1.28