pdb.c revision 169670 
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: head/usr.sbin/sa/pdb.c 169670 2007-05-18 12:36:10Z dds $");
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 <stdint.h>
40#include <stdio.h>
41#include <string.h>
42#include "extern.h"
43#include "pathnames.h"
44
45static int check_junk(const struct cmdinfo *);
46static void add_ci(const struct cmdinfo *, struct cmdinfo *);
47static void print_ci(const struct cmdinfo *, const struct cmdinfo *);
48
49static DB	*pacct_db;
50
51int
52pacct_init()
53{
54	DB *saved_pacct_db;
55	int error;
56
57	pacct_db = dbopen(NULL, O_RDWR, 0, DB_BTREE, NULL);
58	if (pacct_db == NULL)
59		return (-1);
60
61	error = 0;
62	if (!iflag) {
63		DBT key, data;
64		int serr, nerr;
65
66		saved_pacct_db = dbopen(pdb_file, O_RDONLY, 0, DB_BTREE,
67		    NULL);
68		if (saved_pacct_db == NULL) {
69			error = errno == ENOENT ? 0 : -1;
70			if (error)
71				warn("retrieving process accounting summary");
72			goto out;
73		}
74
75		serr = DB_SEQ(saved_pacct_db, &key, &data, R_FIRST);
76		if (serr < 0) {
77			warn("retrieving process accounting summary");
78			error = -1;
79			goto closeout;
80		}
81		while (serr == 0) {
82			nerr = DB_PUT(pacct_db, &key, &data, 0);
83			if (nerr < 0) {
84				warn("initializing process accounting stats");
85				error = -1;
86				break;
87			}
88
89			serr = DB_SEQ(saved_pacct_db, &key, &data, R_NEXT);
90			if (serr < 0) {
91				warn("retrieving process accounting summary");
92				error = -1;
93				break;
94			}
95		}
96
97closeout:	if (DB_CLOSE(saved_pacct_db) < 0) {
98			warn("closing process accounting summary");
99			error = -1;
100		}
101	}
102
103out:	if (error != 0)
104		pacct_destroy();
105	return (error);
106}
107
108void
109pacct_destroy()
110{
111	if (DB_CLOSE(pacct_db) < 0)
112		warn("destroying process accounting stats");
113}
114
115int
116pacct_add(const struct cmdinfo *ci)
117{
118	DBT key, data;
119	struct cmdinfo newci;
120	char keydata[sizeof ci->ci_comm];
121	int rv;
122
123	bcopy(ci->ci_comm, &keydata, sizeof keydata);
124	key.data = &keydata;
125	key.size = strlen(keydata);
126
127	rv = DB_GET(pacct_db, &key, &data, 0);
128	if (rv < 0) {
129		warn("get key %s from process accounting stats", ci->ci_comm);
130		return (-1);
131	} else if (rv == 0) {	/* it's there; copy whole thing */
132		/* XXX compare size if paranoid */
133		/* add the old data to the new data */
134		bcopy(data.data, &newci, data.size);
135	} else {		/* it's not there; zero it and copy the key */
136		bzero(&newci, sizeof newci);
137		bcopy(key.data, newci.ci_comm, key.size);
138	}
139
140	add_ci(ci, &newci);
141
142	data.data = &newci;
143	data.size = sizeof newci;
144	rv = DB_PUT(pacct_db, &key, &data, 0);
145	if (rv < 0) {
146		warn("add key %s to process accounting stats", ci->ci_comm);
147		return (-1);
148	} else if (rv == 1) {
149		warnx("duplicate key %s in process accounting stats",
150		    ci->ci_comm);
151		return (-1);
152	}
153
154	return (0);
155}
156
157int
158pacct_update()
159{
160	DB *saved_pacct_db;
161	DBT key, data;
162	int error, serr, nerr;
163
164	saved_pacct_db = dbopen(pdb_file, O_RDWR|O_CREAT|O_TRUNC, 0644,
165	    DB_BTREE, NULL);
166	if (saved_pacct_db == NULL) {
167		warn("creating process accounting summary");
168		return (-1);
169	}
170
171	error = 0;
172
173	serr = DB_SEQ(pacct_db, &key, &data, R_FIRST);
174	if (serr < 0) {
175		warn("retrieving process accounting stats");
176		error = -1;
177	}
178	while (serr == 0) {
179		nerr = DB_PUT(saved_pacct_db, &key, &data, 0);
180		if (nerr < 0) {
181			warn("saving process accounting summary");
182			error = -1;
183			break;
184		}
185
186		serr = DB_SEQ(pacct_db, &key, &data, R_NEXT);
187		if (serr < 0) {
188			warn("retrieving process accounting stats");
189			error = -1;
190			break;
191		}
192	}
193
194	if (DB_SYNC(saved_pacct_db, 0) < 0) {
195		warn("syncing process accounting summary");
196		error = -1;
197	}
198	if (DB_CLOSE(saved_pacct_db) < 0) {
199		warn("closing process accounting summary");
200		error = -1;
201	}
202	return error;
203}
204
205void
206pacct_print()
207{
208	BTREEINFO bti;
209	DBT key, data, ndata;
210	DB *output_pacct_db;
211	struct cmdinfo *cip, ci, ci_total, ci_other, ci_junk;
212	int rv;
213
214	bzero(&ci_total, sizeof ci_total);
215	strcpy(ci_total.ci_comm, "");
216	bzero(&ci_other, sizeof ci_other);
217	strcpy(ci_other.ci_comm, "***other");
218	bzero(&ci_junk, sizeof ci_junk);
219	strcpy(ci_junk.ci_comm, "**junk**");
220
221	/*
222	 * Retrieve them into new DB, sorted by appropriate key.
223	 * At the same time, cull 'other' and 'junk'
224	 */
225	bzero(&bti, sizeof bti);
226	bti.compare = sa_cmp;
227	output_pacct_db = dbopen(NULL, O_RDWR, 0, DB_BTREE, &bti);
228	if (output_pacct_db == NULL) {
229		warn("couldn't sort process accounting stats");
230		return;
231	}
232
233	ndata.data = NULL;
234	ndata.size = 0;
235	rv = DB_SEQ(pacct_db, &key, &data, R_FIRST);
236	if (rv < 0)
237		warn("retrieving process accounting stats");
238	while (rv == 0) {
239		cip = (struct cmdinfo *) data.data;
240		bcopy(cip, &ci, sizeof ci);
241
242		/* add to total */
243		add_ci(&ci, &ci_total);
244
245		if (vflag && ci.ci_calls <= cutoff &&
246		    (fflag || check_junk(&ci))) {
247			/* put it into **junk** */
248			add_ci(&ci, &ci_junk);
249			goto next;
250		}
251		if (!aflag &&
252		    ((ci.ci_flags & CI_UNPRINTABLE) != 0 || ci.ci_calls <= 1)) {
253			/* put into ***other */
254			add_ci(&ci, &ci_other);
255			goto next;
256		}
257		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
258		if (rv < 0)
259			warn("sorting process accounting stats");
260
261next:		rv = DB_SEQ(pacct_db, &key, &data, R_NEXT);
262		if (rv < 0)
263			warn("retrieving process accounting stats");
264	}
265
266	/* insert **junk** and ***other */
267	if (ci_junk.ci_calls != 0) {
268		data.data = &ci_junk;
269		data.size = sizeof ci_junk;
270		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
271		if (rv < 0)
272			warn("sorting process accounting stats");
273	}
274	if (ci_other.ci_calls != 0) {
275		data.data = &ci_other;
276		data.size = sizeof ci_other;
277		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
278		if (rv < 0)
279			warn("sorting process accounting stats");
280	}
281
282	/* print out the total */
283	print_ci(&ci_total, &ci_total);
284
285	/* print out; if reversed, print first (smallest) first */
286	rv = DB_SEQ(output_pacct_db, &data, &ndata, rflag ? R_FIRST : R_LAST);
287	if (rv < 0)
288		warn("retrieving process accounting report");
289	while (rv == 0) {
290		cip = (struct cmdinfo *) data.data;
291		bcopy(cip, &ci, sizeof ci);
292
293		print_ci(&ci, &ci_total);
294
295		rv = DB_SEQ(output_pacct_db, &data, &ndata,
296		    rflag ? R_NEXT : R_PREV);
297		if (rv < 0)
298			warn("retrieving process accounting report");
299	}
300	DB_CLOSE(output_pacct_db);
301}
302
303static int
304check_junk(const struct cmdinfo *cip)
305{
306	char *cp;
307	size_t len;
308
309	fprintf(stderr, "%s (%ju) -- ", cip->ci_comm, (uintmax_t)cip->ci_calls);
310	cp = fgetln(stdin, &len);
311
312	return (cp && (cp[0] == 'y' || cp[0] == 'Y')) ? 1 : 0;
313}
314
315static void
316add_ci(const struct cmdinfo *fromcip, struct cmdinfo *tocip)
317{
318	tocip->ci_calls += fromcip->ci_calls;
319	tocip->ci_etime += fromcip->ci_etime;
320	tocip->ci_utime += fromcip->ci_utime;
321	tocip->ci_stime += fromcip->ci_stime;
322	tocip->ci_mem += fromcip->ci_mem;
323	tocip->ci_io += fromcip->ci_io;
324}
325
326static void
327print_ci(const struct cmdinfo *cip, const struct cmdinfo *totalcip)
328{
329	double t, c;
330	int uflow;
331
332	c = cip->ci_calls ? cip->ci_calls : 1;
333	t = (cip->ci_utime + cip->ci_stime) / (double) AHZ;
334	if (t < 0.01) {
335		t = 0.01;
336		uflow = 1;
337	} else
338		uflow = 0;
339
340	printf("%8ju ", (uintmax_t)cip->ci_calls);
341	if (cflag) {
342		if (cip != totalcip)
343			printf(" %4.1f%%  ", cip->ci_calls /
344			    (double)totalcip->ci_calls * 100);
345		else
346			printf(" %4s   ", "");
347	}
348
349	if (jflag)
350		printf("%11.2fre ", cip->ci_etime / (double) (AHZ * c));
351	else
352		printf("%11.2fre ", cip->ci_etime / (60.0 * AHZ));
353	if (cflag) {
354		if (cip != totalcip)
355			printf(" %4.1f%%  ", cip->ci_etime /
356			    (double)totalcip->ci_etime * 100);
357		else
358			printf(" %4s   ", "");
359	}
360
361	if (!lflag) {
362		if (jflag)
363			printf("%11.2fcp ", t / (double) cip->ci_calls);
364		else
365			printf("%11.2fcp ", t / 60.0);
366		if (cflag) {
367			if (cip != totalcip)
368				printf(" %4.1f%%  ",
369				    (double)(cip->ci_utime + cip->ci_stime) /
370				    (totalcip->ci_utime + totalcip->ci_stime) *
371				    100);
372			else
373				printf(" %4s   ", "");
374		}
375	} else {
376		if (jflag)
377			printf("%11.2fu ", cip->ci_utime / (double) (AHZ * c));
378		else
379			printf("%11.2fu ", cip->ci_utime / (60.0 * AHZ));
380		if (cflag) {
381			if (cip != totalcip)
382				printf(" %4.1f%%  ", cip->ci_utime /
383				    (double)totalcip->ci_utime * 100);
384			else
385				printf(" %4s   ", "");
386		}
387		if (jflag)
388			printf("%11.2fs ", cip->ci_stime / (double) (AHZ * c));
389		else
390			printf("%11.2fs ", cip->ci_stime / (60.0 * AHZ));
391		if (cflag) {
392			if (cip != totalcip)
393				printf(" %4.1f%%  ", cip->ci_stime /
394				    (double)totalcip->ci_stime * 100);
395			else
396				printf(" %4s   ", "");
397		}
398	}
399
400	if (tflag) {
401		if (!uflow)
402			printf("%8.2fre/cp ",
403			    cip->ci_etime /
404			    (double) (cip->ci_utime + cip->ci_stime));
405		else
406			printf("*ignore*      ");
407	}
408
409	if (Dflag)
410		printf("%10jutio ", (uintmax_t)cip->ci_io);
411	else
412		printf("%8.0favio ", cip->ci_io / c);
413
414	if (Kflag)
415		printf("%10juk*sec ", (uintmax_t)cip->ci_mem);
416	else
417		printf("%8.0fk ", cip->ci_mem / t);
418
419	printf("  %s\n", cip->ci_comm);
420}
421