2 * IRC - Internet Relay Chat, ircd/s_debug.c
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 1, or (at your option)
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * @brief Debug support for the ircd.
32 #include "ircd_alloc.h"
33 #include "ircd_features.h"
35 #include "ircd_osdep.h"
36 #include "ircd_reply.h"
54 /* #include <assert.h> -- Now using assert in ircd_log.h */
58 #include <stddef.h> /* offsetof */
64 * Option string. Must be before #ifdef DEBUGMODE.
66 static char serveropts[256]; /* should be large enough for anything */
68 /** Return a string describing important configuration information.
69 * @return Pointer to a static buffer.
71 const char* debug_serveropts(void)
75 #define AddC(c) serveropts[i++] = (c)
77 bp = feature_int(FEAT_BUFFERPOOL);
81 AddC((char)('0' + (bp / 100000)));
83 AddC((char)('0' + (bp / 10000) % 10));
84 AddC((char)('0' + (bp / 1000) % 10));
88 AddC((char)('0' + (bp / 100000000)));
90 AddC((char)('0' + (bp / 10000000) % 10));
91 AddC((char)('0' + (bp / 1000000) % 10));
101 if (feature_bool(FEAT_HUB))
104 if (feature_bool(FEAT_IDLE_FROM_MSG))
107 if (feature_bool(FEAT_RELIABLE_CLOCK))
110 #if defined(USE_POLL) && defined(HAVE_POLL_H)
117 serveropts[i] = '\0';
122 /** Initialize debugging.
123 * If the -t option is not given on the command line when the server is
124 * started, all debugging output is sent to the file set by LPATH in config.h
125 * Here we just open that file and make sure it is opened to fd 2 so that
126 * any fprintf's to stderr also go to the logfile. If the debuglevel is not
127 * set from the command line by -x, use /dev/null as the dummy logfile as long
128 * as DEBUGMODE has been defined, else don't waste the fd.
129 * @param use_tty Passed to log_debug_init().
131 void debug_init(int use_tty)
134 if (debuglevel >= 0) {
135 printf("isatty = %d ttyname = %s\n", isatty(2), ttyname(2));
136 log_debug_init(use_tty);
142 /** Log a debug message using a va_list.
143 * If the current #debuglevel is less than \a level, do not display.
144 * @param level Debug level for message.
145 * @param form Format string, passed to log_vwrite().
146 * @param vl Varargs argument list for format string.
148 void vdebug(int level, const char *form, va_list vl)
153 if (!loop && (debuglevel >= 0) && (level <= debuglevel))
156 log_vwrite(LS_DEBUG, L_DEBUG, 0, form, vl);
162 /** Log a debug message using a variable number of arguments.
163 * This is a simple wrapper around debug(\a level, \a form, vl).
164 * @param level Debug level for message.
165 * @param form Format string of message.
167 void debug(int level, const char *form, ...)
171 vdebug(level, form, vl);
175 /** Send a literal RPL_STATSDEBUG message to a user.
176 * @param cptr Client to receive the message.
177 * @param msg Text message to send to user.
179 static void debug_enumerator(struct Client* cptr, const char* msg)
182 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":%s", msg);
185 /** Send resource usage statistics to a client.
186 * @param cptr Client to send data to.
187 * @param sd StatDesc that generated the stats request (ignored).
188 * @param param Extra parameter from user (ignored).
190 void send_usage(struct Client *cptr, const struct StatDesc *sd,
193 os_get_rusage(cptr, CurrentTime - cli_since(&me), debug_enumerator);
195 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":DBUF alloc %d used %d",
196 DBufAllocCount, DBufUsedCount);
198 #endif /* DEBUGMODE */
200 /** Report memory usage statistics to a client.
201 * @param cptr Client to send data to.
202 * @param sd StatDesc that generated the stats request (ignored).
203 * @param param Extra parameter from user (ignored).
205 void count_memory(struct Client *cptr, const struct StatDesc *sd,
208 struct Client *acptr;
211 struct Channel *chptr;
212 struct ConfItem *aconf;
213 const struct ConnectionClass* cltmp;
214 struct Membership* member;
216 int acc = 0, /* accounts */
218 cn = 0, /* connections */
219 ch = 0, /* channels */
220 lcc = 0, /* local client conf links */
221 chi = 0, /* channel invites */
222 chb = 0, /* channel bans */
223 wwu = 0, /* whowas users */
224 cl = 0, /* classes */
225 co = 0, /* conf lines */
226 memberships = 0; /* channel memberships */
228 int usi = 0, /* users invited */
229 aw = 0, /* aways set */
230 wwa = 0, /* whowas aways */
234 size_t chm = 0, /* memory used by channels */
235 chbm = 0, /* memory used by channel bans */
236 cm = 0, /* memory used by clients */
237 cnm = 0, /* memory used by connections */
238 us = 0, /* user structs */
239 usm = 0, /* memory used by user structs */
240 awm = 0, /* memory used by aways */
241 wwam = 0, /* whowas away memory used */
242 wwm = 0, /* whowas array memory used */
243 glm = 0, /* memory used by glines */
244 jum = 0, /* memory used by jupes */
245 com = 0, /* memory used by conf lines */
246 dbufs_allocated = 0, /* memory used by dbufs */
247 dbufs_used = 0, /* memory used by dbufs */
248 msg_allocated = 0, /* memory used by struct Msg */
249 msgbuf_allocated = 0, /* memory used by struct MsgBuf */
250 rm = 0, /* res memory used */
251 totcl = 0, totch = 0, totww = 0, tot = 0;
253 count_whowas_memory(&wwu, &wwm, &wwa, &wwam);
254 wwm += sizeof(struct Whowas) * feature_int(FEAT_NICKNAMEHISTORYLENGTH);
255 wwm += sizeof(struct Whowas *) * WW_MAX;
257 for (acptr = GlobalClientList; acptr; acptr = cli_next(acptr))
260 if (MyConnect(acptr))
263 for (link = cli_confs(acptr); link; link = link->next)
268 for (link = cli_user(acptr)->invited; link; link = link->next)
270 for (member = cli_user(acptr)->channel; member; member = member->next_channel)
272 if (cli_user(acptr)->away)
275 awm += (strlen(cli_user(acptr)->away) + 1);
279 if (IsAccount(acptr))
282 cm = c * sizeof(struct Client);
283 cnm = cn * sizeof(struct Connection);
284 user_count_memory(&us, &usm);
286 for (chptr = GlobalChannelList; chptr; chptr = chptr->next)
289 chm += (strlen(chptr->chname) + sizeof(struct Channel));
290 for (link = chptr->invites; link; link = link->next)
292 for (ban = chptr->banlist; link; ban = ban->next)
295 chbm += strlen(ban->who) + strlen(ban->banstr) + 2 + sizeof(*ban);
299 for (aconf = GlobalConfList; aconf; aconf = aconf->next)
302 com += aconf->host ? strlen(aconf->host) + 1 : 0;
303 com += aconf->passwd ? strlen(aconf->passwd) + 1 : 0;
304 com += aconf->name ? strlen(aconf->name) + 1 : 0;
305 com += sizeof(struct ConfItem);
308 for (cltmp = get_class_list(); cltmp; cltmp = cltmp->next)
311 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
312 ":Clients %d(%zu) Connections %d(%zu)", c, cm, cn, cnm);
313 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
314 ":Users %zu(%zu) Accounts %d(%zu) Invites %d(%zu)",
315 us, usm, acc, acc * (ACCOUNTLEN + 1),
316 usi, usi * sizeof(struct SLink));
317 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
318 ":User channels %d(%zu) Aways %d(%zu)", memberships,
319 memberships * sizeof(struct Membership), aw, awm);
320 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":Attached confs %d(%zu)",
321 lcc, lcc * sizeof(struct SLink));
323 totcl = cm + cnm + us * sizeof(struct User) + memberships * sizeof(struct Membership) + awm;
324 totcl += lcc * sizeof(struct SLink) + usi * sizeof(struct SLink);
326 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":Conflines %d(%zu)", co,
329 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":Classes %d(%zu)", cl,
330 cl * sizeof(struct ConnectionClass));
332 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
333 ":Channels %d(%zu) Bans %d(%zu)", ch, chm, chb, chbm);
334 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
335 ":Channel membrs %d(%zu) invite %d(%zu)", memberships,
336 memberships * sizeof(struct Membership), chi,
337 chi * sizeof(struct SLink));
339 totch = chm + chbm + chi * sizeof(struct SLink);
341 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
342 ":Whowas users %d(%zu) away %d(%zu)", wwu,
343 wwu * sizeof(struct User), wwa, wwam);
344 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":Whowas array %d(%zu)",
345 feature_int(FEAT_NICKNAMEHISTORYLENGTH), wwm);
347 totww = wwu * sizeof(struct User) + wwam + wwm;
349 motd_memory_count(cptr);
351 gl = gline_memory_count(&glm);
352 ju = jupe_memory_count(&jum);
353 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
354 ":Glines %d(%zu) Jupes %d(%zu)", gl, glm, ju, jum);
356 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
357 ":Hash: client %d(%zu), chan is the same", HASHSIZE,
358 sizeof(void *) * HASHSIZE);
361 * NOTE: this count will be accurate only for the exact instant that this
362 * message is being sent, so the count is affected by the dbufs that
363 * are being used to send this message out. If this is not desired, move
364 * the dbuf_count_memory call to a place before we start sending messages
365 * and cache DBufAllocCount and DBufUsedCount in variables until they
368 dbuf_count_memory(&dbufs_allocated, &dbufs_used);
369 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
370 ":DBufs allocated %d(%zu) used %d(%zu)", DBufAllocCount,
371 dbufs_allocated, DBufUsedCount, dbufs_used);
373 /* The DBuf caveats now count for this, but this routine now sends
374 * replies all on its own.
376 msgq_count_memory(cptr, &msg_allocated, &msgbuf_allocated);
381 totww + totch + totcl + com + cl * sizeof(struct ConnectionClass) +
382 dbufs_allocated + msg_allocated + msgbuf_allocated + rm;
383 tot += sizeof(void *) * HASHSIZE * 3;
386 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":Allocations: %zu(%zu)",
387 fda_get_block_count(), fda_get_byte_count());
390 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
391 ":Total: ww %zu ch %zu cl %zu co %zu db %zu ms %zu mb %zu",
392 totww, totch, totcl, com, dbufs_allocated, msg_allocated,