xref: /freebsd/usr.sbin/sa/pdb.c (revision 1aaed33edb24c98a09130cd66667d6a795b6b2a8)
1 /*
2  * Copyright (c) 1994 Christopher G. Demetriou
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *      This product includes software developed by Christopher G. Demetriou.
16  * 4. The name of the author may not be used to endorse or promote products
17  *    derived from this software without specific prior written permission
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 #include <sys/types.h>
35 #include <sys/acct.h>
36 #include <err.h>
37 #include <errno.h>
38 #include <fcntl.h>
39 #include <stdbool.h>
40 #include <stdint.h>
41 #include <stdio.h>
42 #include <string.h>
43 #include "extern.h"
44 #include "pathnames.h"
45 
46 static int check_junk(const struct cmdinfo *);
47 static void add_ci(const struct cmdinfo *, struct cmdinfo *);
48 static void print_ci(const struct cmdinfo *, const struct cmdinfo *);
49 
50 static DB	*pacct_db;
51 
52 /* Legacy format in AHZV1 units. */
53 struct cmdinfov1 {
54 	char		ci_comm[MAXCOMLEN+2];	/* command name (+ '*') */
55 	uid_t		ci_uid;			/* user id */
56 	u_quad_t	ci_calls;		/* number of calls */
57 	u_quad_t	ci_etime;		/* elapsed time */
58 	u_quad_t	ci_utime;		/* user time */
59 	u_quad_t	ci_stime;		/* system time */
60 	u_quad_t	ci_mem;			/* memory use */
61 	u_quad_t	ci_io;			/* number of disk i/o ops */
62 	u_int		ci_flags;		/* flags; see below */
63 };
64 
65 /*
66  * Convert a v1 data record into the current version.
67  * Return 0 if OK, -1 on error, setting errno.
68  */
69 static int
70 v1_to_v2(DBT *key __unused, DBT *data)
71 {
72 	struct cmdinfov1 civ1;
73 	static struct cmdinfo civ2;
74 
75 	if (data->size != sizeof(civ1)) {
76 		errno = EFTYPE;
77 		return (-1);
78 	}
79 	memcpy(&civ1, data->data, data->size);
80 	memset(&civ2, 0, sizeof(civ2));
81 	memcpy(civ2.ci_comm, civ1.ci_comm, sizeof(civ2.ci_comm));
82 	civ2.ci_uid = civ1.ci_uid;
83 	civ2.ci_calls = civ1.ci_calls;
84 	civ2.ci_etime = ((double)civ1.ci_etime / AHZV1) * 1000000;
85 	civ2.ci_utime = ((double)civ1.ci_utime / AHZV1) * 1000000;
86 	civ2.ci_stime = ((double)civ1.ci_stime / AHZV1) * 1000000;
87 	civ2.ci_mem = civ1.ci_mem;
88 	civ2.ci_io = civ1.ci_io;
89 	civ2.ci_flags = civ1.ci_flags;
90 	data->size = sizeof(civ2);
91 	data->data = &civ2;
92 	return (0);
93 }
94 
95 /* Copy pdb_file to in-memory pacct_db. */
96 int
97 pacct_init(void)
98 {
99 	return (db_copy_in(&pacct_db, pdb_file, "process accounting",
100 	    NULL, v1_to_v2));
101 }
102 
103 void
104 pacct_destroy(void)
105 {
106 	db_destroy(pacct_db, "process accounting");
107 }
108 
109 int
110 pacct_add(const struct cmdinfo *ci)
111 {
112 	DBT key, data;
113 	struct cmdinfo newci;
114 	char keydata[sizeof ci->ci_comm];
115 	int rv;
116 
117 	bcopy(ci->ci_comm, &keydata, sizeof keydata);
118 	key.data = &keydata;
119 	key.size = strlen(keydata);
120 
121 	rv = DB_GET(pacct_db, &key, &data, 0);
122 	if (rv < 0) {
123 		warn("get key %s from process accounting stats", ci->ci_comm);
124 		return (-1);
125 	} else if (rv == 0) {	/* it's there; copy whole thing */
126 		/* XXX compare size if paranoid */
127 		/* add the old data to the new data */
128 		bcopy(data.data, &newci, data.size);
129 	} else {		/* it's not there; zero it and copy the key */
130 		bzero(&newci, sizeof newci);
131 		bcopy(key.data, newci.ci_comm, key.size);
132 	}
133 
134 	add_ci(ci, &newci);
135 
136 	data.data = &newci;
137 	data.size = sizeof newci;
138 	rv = DB_PUT(pacct_db, &key, &data, 0);
139 	if (rv < 0) {
140 		warn("add key %s to process accounting stats", ci->ci_comm);
141 		return (-1);
142 	} else if (rv == 1) {
143 		warnx("duplicate key %s in process accounting stats",
144 		    ci->ci_comm);
145 		return (-1);
146 	}
147 
148 	return (0);
149 }
150 
151 /* Copy in-memory pacct_db to pdb_file. */
152 int
153 pacct_update(void)
154 {
155 	return (db_copy_out(pacct_db, pdb_file, "process accounting",
156 	    NULL));
157 }
158 
159 void
160 pacct_print(void)
161 {
162 	BTREEINFO bti;
163 	DBT key, data, ndata;
164 	DB *output_pacct_db;
165 	struct cmdinfo *cip, ci, ci_total, ci_other, ci_junk;
166 	int rv;
167 
168 	bzero(&ci_total, sizeof ci_total);
169 	strcpy(ci_total.ci_comm, "");
170 	bzero(&ci_other, sizeof ci_other);
171 	strcpy(ci_other.ci_comm, "***other");
172 	bzero(&ci_junk, sizeof ci_junk);
173 	strcpy(ci_junk.ci_comm, "**junk**");
174 
175 	/*
176 	 * Retrieve them into new DB, sorted by appropriate key.
177 	 * At the same time, cull 'other' and 'junk'
178 	 */
179 	bzero(&bti, sizeof bti);
180 	bti.compare = sa_cmp;
181 	output_pacct_db = dbopen(NULL, O_RDWR, 0, DB_BTREE, &bti);
182 	if (output_pacct_db == NULL) {
183 		warn("couldn't sort process accounting stats");
184 		return;
185 	}
186 
187 	ndata.data = NULL;
188 	ndata.size = 0;
189 	rv = DB_SEQ(pacct_db, &key, &data, R_FIRST);
190 	if (rv < 0)
191 		warn("retrieving process accounting stats");
192 	while (rv == 0) {
193 		cip = (struct cmdinfo *) data.data;
194 		bcopy(cip, &ci, sizeof ci);
195 
196 		/* add to total */
197 		add_ci(&ci, &ci_total);
198 
199 		if (vflag && ci.ci_calls <= cutoff &&
200 		    (fflag || check_junk(&ci))) {
201 			/* put it into **junk** */
202 			add_ci(&ci, &ci_junk);
203 			goto next;
204 		}
205 		if (!aflag &&
206 		    ((ci.ci_flags & CI_UNPRINTABLE) != 0 || ci.ci_calls <= 1)) {
207 			/* put into ***other */
208 			add_ci(&ci, &ci_other);
209 			goto next;
210 		}
211 		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
212 		if (rv < 0)
213 			warn("sorting process accounting stats");
214 
215 next:		rv = DB_SEQ(pacct_db, &key, &data, R_NEXT);
216 		if (rv < 0)
217 			warn("retrieving process accounting stats");
218 	}
219 
220 	/* insert **junk** and ***other */
221 	if (ci_junk.ci_calls != 0) {
222 		data.data = &ci_junk;
223 		data.size = sizeof ci_junk;
224 		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
225 		if (rv < 0)
226 			warn("sorting process accounting stats");
227 	}
228 	if (ci_other.ci_calls != 0) {
229 		data.data = &ci_other;
230 		data.size = sizeof ci_other;
231 		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
232 		if (rv < 0)
233 			warn("sorting process accounting stats");
234 	}
235 
236 	/* print out the total */
237 	print_ci(&ci_total, &ci_total);
238 
239 	/* print out; if reversed, print first (smallest) first */
240 	rv = DB_SEQ(output_pacct_db, &data, &ndata, rflag ? R_FIRST : R_LAST);
241 	if (rv < 0)
242 		warn("retrieving process accounting report");
243 	while (rv == 0) {
244 		cip = (struct cmdinfo *) data.data;
245 		bcopy(cip, &ci, sizeof ci);
246 
247 		print_ci(&ci, &ci_total);
248 
249 		rv = DB_SEQ(output_pacct_db, &data, &ndata,
250 		    rflag ? R_NEXT : R_PREV);
251 		if (rv < 0)
252 			warn("retrieving process accounting report");
253 	}
254 	DB_CLOSE(output_pacct_db);
255 }
256 
257 static int
258 check_junk(const struct cmdinfo *cip)
259 {
260 	char *cp;
261 	size_t len;
262 
263 	fprintf(stderr, "%s (%ju) -- ", cip->ci_comm, (uintmax_t)cip->ci_calls);
264 	cp = fgetln(stdin, &len);
265 
266 	return (cp && (cp[0] == 'y' || cp[0] == 'Y')) ? 1 : 0;
267 }
268 
269 static void
270 add_ci(const struct cmdinfo *fromcip, struct cmdinfo *tocip)
271 {
272 	tocip->ci_calls += fromcip->ci_calls;
273 	tocip->ci_etime += fromcip->ci_etime;
274 	tocip->ci_utime += fromcip->ci_utime;
275 	tocip->ci_stime += fromcip->ci_stime;
276 	tocip->ci_mem += fromcip->ci_mem;
277 	tocip->ci_io += fromcip->ci_io;
278 }
279 
280 static void
281 print_ci(const struct cmdinfo *cip, const struct cmdinfo *totalcip)
282 {
283 	double t, c;
284 	int uflow;
285 
286 	c = cip->ci_calls ? cip->ci_calls : 1;
287 	t = (cip->ci_utime + cip->ci_stime) / 1000000;
288 	if (t < 0.01) {
289 		t = 0.01;
290 		uflow = 1;
291 	} else
292 		uflow = 0;
293 
294 	printf("%8ju ", (uintmax_t)cip->ci_calls);
295 	if (cflag) {
296 		if (cip != totalcip)
297 			printf(" %4.1f%%  ", cip->ci_calls /
298 			    (double)totalcip->ci_calls * 100);
299 		else
300 			printf(" %4s   ", "");
301 	}
302 
303 	if (jflag)
304 		printf("%11.3fre ", cip->ci_etime / (1000000 * c));
305 	else
306 		printf("%11.3fre ", cip->ci_etime / (60.0 * 1000000));
307 	if (cflag) {
308 		if (cip != totalcip)
309 			printf(" %4.1f%%  ", cip->ci_etime /
310 			    totalcip->ci_etime * 100);
311 		else
312 			printf(" %4s   ", "");
313 	}
314 
315 	if (!lflag) {
316 		if (jflag)
317 			printf("%11.3fcp ", t / (double) cip->ci_calls);
318 		else
319 			printf("%11.2fcp ", t / 60.0);
320 		if (cflag) {
321 			if (cip != totalcip)
322 				printf(" %4.1f%%  ",
323 				    (cip->ci_utime + cip->ci_stime) /
324 				    (totalcip->ci_utime + totalcip->ci_stime) *
325 				    100);
326 			else
327 				printf(" %4s   ", "");
328 		}
329 	} else {
330 		if (jflag)
331 			printf("%11.3fu ", cip->ci_utime / (1000000 * c));
332 		else
333 			printf("%11.2fu ", cip->ci_utime / (60.0 * 1000000));
334 		if (cflag) {
335 			if (cip != totalcip)
336 				printf(" %4.1f%%  ", cip->ci_utime /
337 				    (double)totalcip->ci_utime * 100);
338 			else
339 				printf(" %4s   ", "");
340 		}
341 		if (jflag)
342 			printf("%11.3fs ", cip->ci_stime / (1000000 * c));
343 		else
344 			printf("%11.2fs ", cip->ci_stime / (60.0 * 1000000));
345 		if (cflag) {
346 			if (cip != totalcip)
347 				printf(" %4.1f%%  ", cip->ci_stime /
348 				    (double)totalcip->ci_stime * 100);
349 			else
350 				printf(" %4s   ", "");
351 		}
352 	}
353 
354 	if (tflag) {
355 		if (!uflow)
356 			printf("%8.2fre/cp ",
357 			    cip->ci_etime /
358 			    (cip->ci_utime + cip->ci_stime));
359 		else
360 			printf("*ignore*      ");
361 	}
362 
363 	if (Dflag)
364 		printf("%10.0fio ", cip->ci_io);
365 	else
366 		printf("%8.0favio ", cip->ci_io / c);
367 
368 	if (Kflag)
369 		printf("%10.0fk*sec ", cip->ci_mem);
370 	else
371 		printf("%8.0fk ", cip->ci_mem / t);
372 
373 	printf("  %s\n", cip->ci_comm);
374 }
375