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ircu2/ircd/s_debug.c

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/*
* IRC - Internet Relay Chat, ircd/s_debug.c
* Copyright (C) 1990 Jarkko Oikarinen and
* University of Oulu, Computing Center
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 1, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file
* @brief Debug support for the ircd.
* @version $Id: s_debug.c 1429 2005-06-19 02:31:27Z entrope $
*/
#include "config.h"
#include "s_debug.h"
#include "channel.h"
#include "class.h"
#include "client.h"
#include "gline.h"
#include "hash.h"
#include "ircd_alloc.h"
#include "ircd_features.h"
#include "ircd_log.h"
#include "ircd_osdep.h"
#include "ircd_reply.h"
#include "ircd.h"
#include "jupe.h"
#include "list.h"
#include "listener.h"
#include "motd.h"
#include "msgq.h"
#include "numeric.h"
#include "numnicks.h"
#include "res.h"
#include "s_bsd.h"
#include "s_conf.h"
#include "s_user.h"
#include "s_stats.h"
#include "send.h"
#include "shun.h"
#include "struct.h"
#include "sys.h"
#include "watch.h"
#include "whowas.h"
#include "zline.h"
/* #include <assert.h> -- Now using assert in ircd_log.h */
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stddef.h> /* offsetof */
#include <stdio.h>
#include <string.h>
#include <unistd.h>
/*
* Option string. Must be before #ifdef DEBUGMODE.
*/
static char serveropts[256]; /* should be large enough for anything */
/** Return a string describing important configuration information.
* @return Pointer to a static buffer.
*/
const char* debug_serveropts(void)
{
int bp;
int i = 0;
#define AddC(c) serveropts[i++] = (c)
bp = feature_int(FEAT_BUFFERPOOL);
if (bp < 1000000) {
AddC('b');
if (bp > 99999)
AddC((char)('0' + (bp / 100000)));
if (bp > 9999)
AddC((char)('0' + (bp / 10000) % 10));
AddC((char)('0' + (bp / 1000) % 10));
} else {
AddC('B');
if (bp > 99999999)
AddC((char)('0' + (bp / 100000000)));
if (bp > 9999999)
AddC((char)('0' + (bp / 10000000) % 10));
AddC((char)('0' + (bp / 1000000) % 10));
}
#ifndef NDEBUG
AddC('A');
#endif
#ifdef DEBUGMODE
AddC('D');
#endif
if (feature_bool(FEAT_HUB))
AddC('H');
if (feature_bool(FEAT_IDLE_FROM_MSG))
AddC('M');
if (feature_bool(FEAT_RELIABLE_CLOCK))
AddC('R');
#if defined(USE_POLL) && defined(HAVE_POLL_H)
AddC('U');
#endif
#ifdef USE_SSL
AddC('Z');
#endif /* USE_SSL */
#ifdef IPV6
AddC('6');
#endif
serveropts[i] = '\0';
return serveropts;
}
/** Initialize debugging.
* If the -t option is not given on the command line when the server is
* started, all debugging output is sent to the file set by LPATH in config.h
* Here we just open that file and make sure it is opened to fd 2 so that
* any fprintf's to stderr also go to the logfile. If the debuglevel is not
* set from the command line by -x, use /dev/null as the dummy logfile as long
* as DEBUGMODE has been defined, else don't waste the fd.
* @param use_tty Passed to log_debug_init().
*/
void debug_init(int use_tty)
{
#ifdef DEBUGMODE
if (debuglevel >= 0) {
printf("isatty = %d ttyname = %s\n", isatty(2), ttyname(2));
log_debug_init(use_tty);
}
#endif
}
#ifdef DEBUGMODE
/** Log a debug message using a va_list.
* If the current #debuglevel is less than \a level, do not display.
* @param level Debug level for message.
* @param form Format string, passed to log_vwrite().
* @param vl Varargs argument list for format string.
*/
void vdebug(int level, const char *form, va_list vl)
{
static int loop = 0;
int err = errno;
if (!loop && (debuglevel >= 0) && (level <= debuglevel))
{
loop = 1;
log_vwrite(LS_DEBUG, L_DEBUG, 0, form, vl);
loop = 0;
}
errno = err;
}
/** Log a debug message using a variable number of arguments.
* This is a simple wrapper around debug(\a level, \a form, vl).
* @param level Debug level for message.
* @param form Format string of message.
*/
void debug(int level, const char *form, ...)
{
va_list vl;
va_start(vl, form);
vdebug(level, form, vl);
va_end(vl);
}
/** Send a literal RPL_STATSDEBUG message to a user.
* @param cptr Client to receive the message.
* @param msg Text message to send to user.
*/
static void debug_enumerator(struct Client* cptr, const char* msg)
{
assert(0 != cptr);
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":%s", msg);
}
/** Send resource usage statistics to a client.
* @param cptr Client to send data to.
* @param sd StatDesc that generated the stats request (ignored).
* @param param Extra parameter from user (ignored).
*/
void send_usage(struct Client *cptr, const struct StatDesc *sd,
char *param)
{
os_get_rusage(cptr, CurrentTime - cli_since(&me), debug_enumerator);
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":DBUF alloc %d used %d",
DBufAllocCount, DBufUsedCount);
}
#endif /* DEBUGMODE */
/** Report memory usage statistics to a client.
* @param cptr Client to send data to.
* @param sd StatDesc that generated the stats request (ignored).
* @param param Extra parameter from user (ignored).
*/
void count_memory(struct Client *cptr, const struct StatDesc *sd,
char *param)
{
struct Client *acptr;
struct SLink *link;
struct Ban *ban;
struct Channel *chptr;
struct ConfItem *aconf;
const struct ConnectionClass* cltmp;
struct Membership* member;
int acc = 0, /* accounts */
c = 0, /* clients */
cn = 0, /* connections */
ch = 0, /* channels */
lcc = 0, /* local client conf links */
chi = 0, /* channel invites */
chb = 0, /* channel bans */
wwu = 0, /* whowas users */
cl = 0, /* classes */
co = 0, /* conf lines */
listeners = 0, /* listeners */
memberships = 0; /* channel memberships */
int usi = 0, /* users invited */
aw = 0, /* aways set */
wwa = 0, /* whowas aways */
gl = 0, /* glines */
sh = 0, /* shuns */
ju = 0, /* jupes */
zl = 0; /* zlines */
size_t chm = 0, /* memory used by channels */
chbm = 0, /* memory used by channel bans */
cm = 0, /* memory used by clients */
cnm = 0, /* memory used by connections */
us = 0, /* user structs */
usm = 0, /* memory used by user structs */
awm = 0, /* memory used by aways */
wwam = 0, /* whowas away memory used */
wwm = 0, /* whowas array memory used */
wt = 0, /* watch entrys */
wtm = 0, /* memory used by watchs */
glm = 0, /* memory used by glines */
shm = 0, /* memory used by shuns */
jum = 0, /* memory used by jupes */
zlm = 0, /* memory used by zlines */
com = 0, /* memory used by conf lines */
dbufs_allocated = 0, /* memory used by dbufs */
dbufs_used = 0, /* memory used by dbufs */
msg_allocated = 0, /* memory used by struct Msg */
msgbuf_allocated = 0, /* memory used by struct MsgBuf */
listenersm = 0, /* memory used by listetners */
totcl = 0, totch = 0, totww = 0;
count_whowas_memory(&wwu, &wwm, &wwa, &wwam);
wwm += sizeof(struct Whowas) * feature_int(FEAT_NICKNAMEHISTORYLENGTH);
wwm += sizeof(struct Whowas *) * WW_MAX;
for (acptr = GlobalClientList; acptr; acptr = cli_next(acptr))
{
c++;
if (MyConnect(acptr))
{
cn++;
for (link = cli_confs(acptr); link; link = link->next)
lcc++;
}
if (cli_user(acptr))
{
for (link = cli_user(acptr)->invited; link; link = link->next)
usi++;
for (member = cli_user(acptr)->channel; member; member = member->next_channel)
++memberships;
if (cli_user(acptr)->away)
{
aw++;
awm += (strlen(cli_user(acptr)->away) + 1);
}
}
if (IsAccount(acptr))
acc++;
}
cm = c * sizeof(struct Client);
cnm = cn * sizeof(struct Connection);
user_count_memory(&us, &usm);
for (chptr = GlobalChannelList; chptr; chptr = chptr->next)
{
ch++;
chm += (strlen(chptr->chname) + sizeof(struct Channel));
for (link = chptr->invites; link; link = link->next)
chi++;
for (ban = chptr->banlist; ban; ban = ban->next)
{
chb++;
chbm += strlen(ban->who) + strlen(ban->banstr) + 2 + sizeof(*ban);
}
}
for (aconf = GlobalConfList; aconf; aconf = aconf->next)
{
co++;
com += aconf->host ? strlen(aconf->host) + 1 : 0;
com += aconf->passwd ? strlen(aconf->passwd) + 1 : 0;
com += aconf->name ? strlen(aconf->name) + 1 : 0;
com += sizeof(struct ConfItem);
}
for (cltmp = get_class_list(); cltmp; cltmp = cltmp->next)
cl++;
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":Clients %d(%zu) Connections %d(%zu)", c, cm, cn, cnm);
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":Users %zu(%zu) Accounts %d(%zu) Invites %d(%zu)",
us, usm, acc, acc * (ACCOUNTLEN + 1),
usi, usi * sizeof(struct SLink));
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":User channels %d(%zu) Aways %d(%zu)", memberships,
memberships * sizeof(struct Membership), aw, awm);
totcl = cm + cnm + us * sizeof(struct User) + memberships * sizeof(struct Membership) + awm;
totcl += lcc * sizeof(struct SLink) + usi * sizeof(struct SLink);
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":Conflines %d(%zu) Attached %d(%zu) Classes %d(%zu)",
co, com, lcc, lcc * sizeof(struct SLink),
cl, cl * sizeof(struct ConnectionClass));
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":Channels %d(%zu) Bans %d(%zu)", ch, chm, chb, chbm);
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":Channel Members %d(%zu) Invites %d(%zu)", memberships,
memberships * sizeof(struct Membership), chi,
chi * sizeof(struct SLink));
totch = chm + chbm + chi * sizeof(struct SLink);
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":Whowas Users %d(%zu) Away %d(%zu) Array %d(%zu)",
wwu, wwu * sizeof(struct User), wwa, wwam,
feature_int(FEAT_NICKNAMEHISTORYLENGTH), wwm);
totww = wwu * sizeof(struct User) + wwam + wwm;
watch_count_memory(&wt, &wtm);
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":Watchs %d(%zu)", wt, wtm);
motd_memory_count(cptr);
gl = gline_memory_count(&glm);
sh = shun_memory_count(&shm);
ju = jupe_memory_count(&jum);
zl = zline_memory_count(&zlm);
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":Glines %d(%zu) Zlines %d(%zu) Shuns %d(%zu) Jupes %d(%zu)", gl, glm, zl, zlm, sh, shm, ju, jum);
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":Hash: client %d(%zu), chan is the same", HASHSIZE,
sizeof(void *) * HASHSIZE);
count_listener_memory(&listeners, &listenersm);
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":Listeners allocated %d(%zu)", listeners, listenersm);
/*
* NOTE: this count will be accurate only for the exact instant that this
* message is being sent, so the count is affected by the dbufs that
* are being used to send this message out. If this is not desired, move
* the dbuf_count_memory call to a place before we start sending messages
* and cache DBufAllocCount and DBufUsedCount in variables until they
* are sent.
*/
dbuf_count_memory(&dbufs_allocated, &dbufs_used);
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":DBufs allocated %d(%zu) used %d(%zu)", DBufAllocCount,
dbufs_allocated, DBufUsedCount, dbufs_used);
/* The DBuf caveats now count for this, but this routine now sends
* replies all on its own.
*/
msgq_count_memory(cptr, &msg_allocated, &msgbuf_allocated);
#if defined(MDEBUG)
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":Allocations: %zu(%zu)",
fda_get_block_count(), fda_get_byte_count());
#endif
send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
":Total: ww %zu ch %zu cl %zu co %zu db %zu ms %zu mb %zu",
totww, totch, totcl, com, dbufs_allocated, msg_allocated,
msgbuf_allocated);
}
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