1 /* Copyright (c) 1998, 2003, 2004 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1998.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
33 /* We use this to make sure the receiver is the same. */
34 static const char compilation
[21] = __DATE__
" " __TIME__
;
36 /* Statistic data for one database. */
43 unsigned long int postimeout
;
44 unsigned long int negtimeout
;
57 uintmax_t rdlockdelayed
;
58 uintmax_t wrlockdelayed
;
63 /* Record for transmitting statistics. */
66 char version
[sizeof (compilation
)];
69 unsigned long int client_queued
;
71 struct dbstat dbs
[lastdb
];
76 send_stats (int fd
, struct database_dyn dbs
[lastdb
])
81 memcpy (data
.version
, compilation
, sizeof (compilation
));
82 data
.debug_level
= debug_level
;
83 data
.runtime
= time (NULL
) - start_time
;
84 data
.client_queued
= client_queued
;
87 for (cnt
= 0; cnt
< lastdb
; ++cnt
)
89 data
.dbs
[cnt
].enabled
= dbs
[cnt
].enabled
;
90 data
.dbs
[cnt
].check_file
= dbs
[cnt
].check_file
;
91 data
.dbs
[cnt
].module
= dbs
[cnt
].head
->module
;
92 data
.dbs
[cnt
].postimeout
= dbs
[cnt
].postimeout
;
93 data
.dbs
[cnt
].negtimeout
= dbs
[cnt
].negtimeout
;
94 data
.dbs
[cnt
].poshit
= dbs
[cnt
].head
->poshit
;
95 data
.dbs
[cnt
].neghit
= dbs
[cnt
].head
->neghit
;
96 data
.dbs
[cnt
].posmiss
= dbs
[cnt
].head
->posmiss
;
97 data
.dbs
[cnt
].negmiss
= dbs
[cnt
].head
->negmiss
;
98 data
.dbs
[cnt
].nentries
= dbs
[cnt
].head
->nentries
;
99 data
.dbs
[cnt
].maxnentries
= dbs
[cnt
].head
->maxnentries
;
100 data
.dbs
[cnt
].datasize
= dbs
[cnt
].head
->data_size
;
101 data
.dbs
[cnt
].dataused
= dbs
[cnt
].head
->first_free
;
102 data
.dbs
[cnt
].maxnsearched
= dbs
[cnt
].head
->maxnsearched
;
103 data
.dbs
[cnt
].rdlockdelayed
= dbs
[cnt
].head
->rdlockdelayed
;
104 data
.dbs
[cnt
].wrlockdelayed
= dbs
[cnt
].head
->wrlockdelayed
;
105 data
.dbs
[cnt
].addfailed
= dbs
[cnt
].head
->addfailed
;
108 if (TEMP_FAILURE_RETRY (write (fd
, &data
, sizeof (data
))) != sizeof (data
))
111 dbg_log (_("cannot write statistics: %s"),
112 strerror_r (errno
, buf
, sizeof (buf
)));
118 receive_print_stats (void)
120 struct statdata data
;
125 uid_t uid
= getuid ();
127 /* Find out whether there is another user but root allowed to
128 request statistics. */
131 /* User specified? */
132 if(stat_user
== NULL
|| stat_uid
!= uid
)
134 if (stat_user
!= NULL
)
135 error (EXIT_FAILURE
, 0,
136 _("Only root or %s is allowed to use this option!"),
139 error (EXIT_FAILURE
, 0,
140 _("Only root is allowed to use this option!"));
144 /* Open a socket to the running nscd. */
145 fd
= nscd_open_socket ();
147 error (EXIT_FAILURE
, 0, _("nscd not running!\n"));
149 /* Send the request. */
150 req
.version
= NSCD_VERSION
;
153 nbytes
= TEMP_FAILURE_RETRY (write (fd
, &req
, sizeof (request_header
)));
154 if (nbytes
!= sizeof (request_header
))
158 error (EXIT_FAILURE
, err
, _("write incomplete"));
161 /* Read as much data as we expect. */
162 if (TEMP_FAILURE_RETRY (read (fd
, &data
, sizeof (data
))) != sizeof (data
)
163 || (memcmp (data
.version
, compilation
, sizeof (compilation
)) != 0
164 /* Yes, this is an assignment! */
165 && (errno
= EINVAL
)))
167 /* Not the right version. */
170 error (EXIT_FAILURE
, err
, _("cannot read statistics data"));
173 printf (_("nscd configuration:\n\n%15d server debug level\n"),
176 /* We know that we can simply subtract time_t values. */
177 unsigned long int diff
= data
.runtime
;
178 unsigned int ndays
= 0;
179 unsigned int nhours
= 0;
180 unsigned int nmins
= 0;
181 if (diff
> 24 * 60 * 60)
183 ndays
= diff
/ (24 * 60 * 60);
184 diff
%= 24 * 60 * 60;
188 nhours
= diff
/ (60 * 60);
197 printf (_("%3ud %2uh %2um %2lus server runtime\n"),
198 ndays
, nhours
, nmins
, diff
);
199 else if (nhours
!= 0)
200 printf (_(" %2uh %2um %2lus server runtime\n"), nhours
, nmins
, diff
);
202 printf (_(" %2um %2lus server runtime\n"), nmins
, diff
);
204 printf (_(" %2lus server runtime\n"), diff
);
206 printf (_("%15lu number of times clients had to wait\n"),
209 for (i
= 0; i
< lastdb
; ++i
)
211 unsigned long int hit
= data
.dbs
[i
].poshit
+ data
.dbs
[i
].neghit
;
212 unsigned long int all
= hit
+ data
.dbs
[i
].posmiss
+ data
.dbs
[i
].negmiss
;
213 const char *enabled
= nl_langinfo (data
.dbs
[i
].enabled
? YESSTR
: NOSTR
);
214 const char *check_file
= nl_langinfo (data
.dbs
[i
].check_file
217 if (enabled
[0] == '\0')
218 /* The locale does not provide this information so we have to
219 translate it ourself. Since we should avoid short translation
220 terms we artifically increase the length. */
221 enabled
= data
.dbs
[i
].enabled
? _(" yes") : _(" no");
222 if (check_file
[0] == '\0')
223 check_file
= data
.dbs
[i
].check_file
? _(" yes") : _(" no");
226 /* If nothing happened so far report a 0% hit rate. */
229 printf (_("\n%s cache:\n\n"
230 "%15s cache is enabled\n"
231 "%15zu suggested size\n"
232 "%15zu total data pool size\n"
233 "%15zu used data pool size\n"
234 "%15lu seconds time to live for positive entries\n"
235 "%15lu seconds time to live for negative entries\n"
236 "%15" PRIuMAX
" cache hits on positive entries\n"
237 "%15" PRIuMAX
" cache hits on negative entries\n"
238 "%15" PRIuMAX
" cache misses on positive entries\n"
239 "%15" PRIuMAX
" cache misses on negative entries\n"
240 "%15lu%% cache hit rate\n"
241 "%15zu current number of cached values\n"
242 "%15zu maximum number of cached values\n"
243 "%15zu maximum chain length searched\n"
244 "%15" PRIuMAX
" number of delays on rdlock\n"
245 "%15" PRIuMAX
" number of delays on wrlock\n"
246 "%15" PRIuMAX
" memory allocations failed\n"
247 "%15s check /etc/%s for changes\n"),
250 data
.dbs
[i
].datasize
, data
.dbs
[i
].dataused
,
251 data
.dbs
[i
].postimeout
, data
.dbs
[i
].negtimeout
,
252 data
.dbs
[i
].poshit
, data
.dbs
[i
].neghit
,
253 data
.dbs
[i
].posmiss
, data
.dbs
[i
].negmiss
,
255 data
.dbs
[i
].nentries
, data
.dbs
[i
].maxnentries
,
256 data
.dbs
[i
].maxnsearched
,
257 data
.dbs
[i
].rdlockdelayed
,
258 data
.dbs
[i
].wrlockdelayed
,
259 data
.dbs
[i
].addfailed
, check_file
, dbnames
[i
]);