xref: /freebsd/contrib/tcsh/sh.time.c (revision a03411e84728e9b267056fd31c7d1d9d1dc1b01e)
1 /*
2  * sh.time.c: Shell time keeping and printing.
3  */
4 /*-
5  * Copyright (c) 1980, 1991 The	Regents	of the University of California.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and	binary forms, with or without
9  * modification, are permitted provided	that the following conditions
10  * are met:
11  * 1. Redistributions of source	code must retain the above copyright
12  *    notice, this list	of conditions and the following	disclaimer.
13  * 2. Redistributions in binary	form must reproduce the	above copyright
14  *    notice, this list	of conditions and the following	disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or	promote	products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS	SOFTWARE IS PROVIDED BY	THE REGENTS AND	CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT	SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR	CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES;	LOSS OF	USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH	DAMAGE.
31  */
32 #include "sh.h"
33 #ifdef SUNOS4
34 # include <machine/param.h>
35 #endif /* SUNOS4 */
36 
37 /*
38  * C Shell - routines handling process timing and niceing
39  */
40 #ifdef BSDTIMES
41 # ifndef RUSAGE_SELF
42 #  define	RUSAGE_SELF	0
43 #  define	RUSAGE_CHILDREN	-1
44 # endif	/* RUSAGE_SELF */
45 #else /* BSDTIMES */
46 struct tms times0;
47 #endif /* BSDTIMES */
48 
49 #if !defined(BSDTIMES) && !defined(_SEQUENT_)
50 # ifdef	POSIX
51 static	void	pdtimet	(clock_t, clock_t);
52 # else /* ! POSIX */
53 static	void	pdtimet	(time_t, time_t);
54 # endif	/* ! POSIX */
55 #else /* BSDTIMES || _SEQUENT_ */
56 static	void	tvadd	(timeval_t *, timeval_t *);
57 static	void	pdeltat	(timeval_t *, timeval_t *);
58 #endif /* BSDTIMES || _SEQUENT_	*/
59 
60 void
61 settimes(void)
62 {
63 #ifdef BSDTIMES
64     struct sysrusage ruch;
65 #ifdef convex
66     memset(&ru0, 0, sizeof(ru0));
67     memset(&ruch, 0, sizeof(ruch));
68 #endif /* convex */
69 
70     (void) gettimeofday(&time0,	NULL);
71     (void) getrusage(RUSAGE_SELF, (struct rusage *) &ru0);
72     (void) getrusage(RUSAGE_CHILDREN, (struct rusage *) &ruch);
73     ruadd(&ru0,	&ruch);
74 #else
75 # ifdef	_SEQUENT_
76     struct process_stats ruch;
77 
78     (void) get_process_stats(&time0, PS_SELF, &ru0, &ruch);
79     ruadd(&ru0,	&ruch);
80 # else	/* _SEQUENT_ */
81     seconds0 = time(NULL);
82     time0 = times(&times0);
83     times0.tms_stime +=	times0.tms_cstime;
84     times0.tms_utime +=	times0.tms_cutime;
85     times0.tms_cstime =	0;
86     times0.tms_cutime =	0;
87 # endif	/* _SEQUENT_ */
88 #endif /* BSDTIMES */
89 }
90 
91 /*
92  * dotime is only called if it is truly	a builtin function and not a
93  * prefix to another command
94  */
95 /*ARGSUSED*/
96 void
97 dotime(Char **v, struct command *c)
98 {
99 #ifdef BSDTIMES
100     timeval_t timedol;
101     struct sysrusage ru1, ruch;
102 #ifdef convex
103     memset(&ru1, 0, sizeof(ru1));
104     memset(&ruch, 0, sizeof(ruch));
105 #endif /* convex */
106 
107     (void) getrusage(RUSAGE_SELF, (struct rusage *) &ru1);
108     (void) getrusage(RUSAGE_CHILDREN, (struct rusage *) &ruch);
109     ruadd(&ru1,	&ruch);
110     (void) gettimeofday(&timedol, NULL);
111     prusage(&ru0, &ru1,	&timedol, &time0);
112 #else
113 # ifdef	_SEQUENT_
114     timeval_t timedol;
115     struct process_stats ru1, ruch;
116 
117     (void) get_process_stats(&timedol, PS_SELF,	&ru1, &ruch);
118     ruadd(&ru1,	&ruch);
119     prusage(&ru0, &ru1,	&timedol, &time0);
120 # else /* _SEQUENT_ */
121 #  ifndef POSIX
122     time_t  timedol;
123 #  else	/* POSIX */
124     clock_t timedol;
125 #  endif /* POSIX */
126 
127     struct tms times_dol;
128 
129     timedol = times(&times_dol);
130     times_dol.tms_stime	+= times_dol.tms_cstime;
131     times_dol.tms_utime	+= times_dol.tms_cutime;
132     times_dol.tms_cstime = 0;
133     times_dol.tms_cutime = 0;
134     prusage(&times0, &times_dol, timedol, time0);
135 # endif	/* _SEQUENT_ */
136 #endif /* BSDTIMES */
137     USE(c);
138     USE(v);
139 }
140 
141 /*
142  * donice is only called when it on the	line by	itself or with a +- value
143  */
144 /*ARGSUSED*/
145 void
146 donice(Char **v, struct command *c)
147 {
148     Char *cp;
149     int	    nval = 0;
150 
151     USE(c);
152     v++, cp = *v++;
153     if (cp == 0)
154 	nval = 4;
155     else if (*v	== 0 &&	any("+-", cp[0]))
156 	nval = getn(cp);
157 #if defined(HAVE_SETPRIORITY) && defined(PRIO_PROCESS)
158     if (setpriority(PRIO_PROCESS, 0, nval) == -1 && errno)
159 	stderror(ERR_SYSTEM, "setpriority", strerror(errno));
160 #else /* !HAVE_SETPRIORITY || !PRIO_PROCESS */
161     (void) nice(nval);
162 #endif /* HAVE_SETPRIORITY && PRIO_PROCESS */
163 }
164 
165 #ifdef BSDTIMES
166 void
167 ruadd(struct sysrusage *ru, struct sysrusage *ru2)
168 {
169     tvadd(&ru->ru_utime, &ru2->ru_utime);
170     tvadd(&ru->ru_stime, &ru2->ru_stime);
171 #ifndef _OSD_POSIX
172     if (ru2->ru_maxrss > ru->ru_maxrss)
173 	ru->ru_maxrss =	ru2->ru_maxrss;
174 
175     ru->ru_ixrss += ru2->ru_ixrss;
176     ru->ru_idrss += ru2->ru_idrss;
177     ru->ru_isrss += ru2->ru_isrss;
178     ru->ru_minflt += ru2->ru_minflt;
179     ru->ru_majflt += ru2->ru_majflt;
180     ru->ru_nswap += ru2->ru_nswap;
181     ru->ru_inblock += ru2->ru_inblock;
182     ru->ru_oublock += ru2->ru_oublock;
183     ru->ru_msgsnd += ru2->ru_msgsnd;
184     ru->ru_msgrcv += ru2->ru_msgrcv;
185     ru->ru_nsignals += ru2->ru_nsignals;
186     ru->ru_nvcsw += ru2->ru_nvcsw;
187     ru->ru_nivcsw += ru2->ru_nivcsw;
188 #endif /*bs2000*/
189 
190 # ifdef	convex
191     tvadd(&ru->ru_exutime, &ru2->ru_exutime);
192     ru->ru_utotal += ru2->ru_utotal;
193     ru->ru_usamples += ru2->ru_usamples;
194     ru->ru_stotal += ru2->ru_stotal;
195     ru->ru_ssamples += ru2->ru_ssamples;
196 # endif	/* convex */
197 }
198 
199 #else /* BSDTIMES */
200 # ifdef	_SEQUENT_
201 void
202 ruadd(struct process_stats *ru, struct process_stats *ru2)
203 {
204     tvadd(&ru->ps_utime, &ru2->ps_utime);
205     tvadd(&ru->ps_stime, &ru2->ps_stime);
206     if (ru2->ps_maxrss > ru->ps_maxrss)
207 	ru->ps_maxrss =	ru2->ps_maxrss;
208 
209     ru->ps_pagein += ru2->ps_pagein;
210     ru->ps_reclaim += ru2->ps_reclaim;
211     ru->ps_zerofill += ru2->ps_zerofill;
212     ru->ps_pffincr += ru2->ps_pffincr;
213     ru->ps_pffdecr += ru2->ps_pffdecr;
214     ru->ps_swap	+= ru2->ps_swap;
215     ru->ps_syscall += ru2->ps_syscall;
216     ru->ps_volcsw += ru2->ps_volcsw;
217     ru->ps_involcsw += ru2->ps_involcsw;
218     ru->ps_signal += ru2->ps_signal;
219     ru->ps_lread += ru2->ps_lread;
220     ru->ps_lwrite += ru2->ps_lwrite;
221     ru->ps_bread += ru2->ps_bread;
222     ru->ps_bwrite += ru2->ps_bwrite;
223     ru->ps_phread += ru2->ps_phread;
224     ru->ps_phwrite += ru2->ps_phwrite;
225 }
226 
227 # endif	/* _SEQUENT_ */
228 #endif /* BSDTIMES */
229 
230 #ifdef BSDTIMES
231 
232 /*
233  * PWP:	the LOG1024 and	pagetok	stuff taken from the top command,
234  * written by William LeFebvre
235  */
236 /* Log base 2 of 1024 is 10 (2^10 == 1024) */
237 #define	LOG1024		10
238 
239 /* Convert clicks (kernel pages) to kbytes ... */
240 /* If there is no PGSHIFT defined, assume it is	11 */
241 /* Is this needed for compatability with some old flavor of 4.2	or 4.1?	*/
242 #ifdef SUNOS4
243 # ifndef PGSHIFT
244 #  define pagetok(size)	  ((size) << 1)
245 # else
246 #  if PGSHIFT>10
247 #   define pagetok(size)   ((size) << (PGSHIFT - LOG1024))
248 #  else
249 #   define pagetok(size)   ((size) >> (LOG1024 - PGSHIFT))
250 #  endif
251 # endif
252 #endif
253 
254 /*
255  * if any other	machines return	wierd values in	the ru_i* stuff, put
256  * the adjusting macro here:
257  */
258 #ifdef SUNOS4
259 # define IADJUST(i)	(pagetok(i)/2)
260 #else /* SUNOS4	*/
261 # ifdef	convex
262    /*
263     * convex has megabytes * CLK_TCK
264     * multiply by 100 since we use time	in 100ths of a second in prusage
265     */
266 #  define IADJUST(i) (((i) << 10) / CLK_TCK * 100)
267 # else /* convex */
268 #  define IADJUST(i)	(i)
269 # endif	/* convex */
270 #endif /* SUNOS4 */
271 
272 void
273 prusage(struct sysrusage *r0, struct sysrusage *r1, timeval_t *e, timeval_t *b)
274 
275 #else /* BSDTIMES */
276 # ifdef	_SEQUENT_
277 void
278 prusage(struct process_stats *r0, struct process_stats *r1, timeval_t e,
279 	timeval_t b)
280 
281 # else /* _SEQUENT_ */
282 #  ifndef POSIX
283 void
284 prusage(struct tms *bs, struct tms *es, time_t e, time_t b)
285 #  else	/* POSIX */
286 void
287 prusage(struct tms *bs, struct tms *es, clock_t e, clock_t b)
288 #  endif /* POSIX */
289 # endif	/* _SEQUENT_ */
290 #endif /* BSDTIMES */
291 {
292     int ohaderr = haderr;
293 #ifdef BSDTIMES
294     time_t t =
295     (r1->ru_utime.tv_sec - r0->ru_utime.tv_sec)	* 100 +
296     (r1->ru_utime.tv_usec - r0->ru_utime.tv_usec) / 10000 +
297     (r1->ru_stime.tv_sec - r0->ru_stime.tv_sec)	* 100 +
298     (r1->ru_stime.tv_usec - r0->ru_stime.tv_usec) / 10000;
299 
300 #else
301 # ifdef	_SEQUENT_
302     time_t t =
303     (r1->ps_utime.tv_sec - r0->ps_utime.tv_sec)	* 100 +
304     (r1->ps_utime.tv_usec - r0->ps_utime.tv_usec) / 10000 +
305     (r1->ps_stime.tv_sec - r0->ps_stime.tv_sec)	* 100 +
306     (r1->ps_stime.tv_usec - r0->ps_stime.tv_usec) / 10000;
307 
308 # else /* _SEQUENT_ */
309 #  ifndef POSIX
310     time_t t =	(es->tms_utime - bs->tms_utime +
311 			 es->tms_stime - bs->tms_stime)	* 100 /	HZ;
312 
313 #  else	/* POSIX */
314     clock_t t = (es->tms_utime	- bs->tms_utime	+
315 			  es->tms_stime	- bs->tms_stime) * 100 / clk_tck;
316 
317 #  endif /* POSIX */
318 # endif	/* _SEQUENT_ */
319 #endif /* BSDTIMES */
320 
321     const char *cp;
322     long i;
323     struct varent *vp = adrof(STRtime);
324 
325 #ifdef BSDTIMES
326 # ifdef	convex
327     static struct system_information sysinfo;
328     long long memtmp;	/* let memory calculations exceede 2Gb */
329 # endif	/* convex */
330     int	    ms = (int)
331     ((e->tv_sec	- b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000);
332 
333     cp = "%Uu %Ss %E %P	%X+%Dk %I+%Oio %Fpf+%Ww";
334     haderr = 0;
335 #else /* !BSDTIMES */
336 # ifdef	_SEQUENT_
337     int	    ms = (int)
338     ((e->tv_sec	- b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000);
339 
340     cp = "%Uu %Ss %E %P	%I+%Oio	%Fpf+%Ww";
341     haderr = 0;
342 # else /* !_SEQUENT_ */
343 #  ifndef POSIX
344     time_t ms = ((time_t)((e - b) / HZ) * 100) +
345 		 (time_t)(((e - b) % HZ) * 100) / HZ;
346 #  else	/* POSIX */
347     clock_t ms = ((clock_t)((e - b) / clk_tck) * 100) +
348 		  (clock_t)(((e - b) % clk_tck) * 100) / clk_tck;
349 #  endif /* POSIX */
350 
351     cp = "%Uu %Ss %E %P";
352     haderr = 0;
353 
354     /*
355      * the tms stuff is	not very precise, so we	fudge it.
356      * granularity fix:	can't be more than 100%
357      * this breaks in multi-processor systems...
358      * maybe I should take it out and let people see more then 100%
359      * utilizations.
360      */
361 #  if 0
362     if (ms < t && ms !=	0)
363 	ms = t;
364 #  endif
365 # endif	/*! _SEQUENT_ */
366 #endif /* !BSDTIMES */
367 #ifdef TDEBUG
368     xprintf("es->tms_utime %lu bs->tms_utime %lu\n",
369 	    (unsigned long)es->tms_utime, (unsigned long)bs->tms_utime);
370     xprintf("es->tms_stime %lu bs->tms_stime %lu\n",
371 	    (unsigned long)es->tms_stime, (unsigned long)bs->tms_stime);
372     xprintf("ms	%llu e %p b %p\n", (unsigned long long)ms, e, b);
373     xprintf("t %llu\n", (unsigned long long)t);
374 #endif /* TDEBUG */
375 
376     if (vp && vp->vec && vp->vec[0] && vp->vec[1])
377 	cp = short2str(vp->vec[1]);
378     for	(; *cp;	cp++)
379 	if (*cp	!= '%')
380 	    xputchar(*cp);
381 	else if	(cp[1])
382 	    switch (*++cp) {
383 
384 	    case 'U':		/* user	CPU time used */
385 #ifdef BSDTIMES
386 		pdeltat(&r1->ru_utime, &r0->ru_utime);
387 #else
388 # ifdef	_SEQUENT_
389 		pdeltat(&r1->ps_utime, &r0->ps_utime);
390 # else /* _SEQUENT_ */
391 #  ifndef POSIX
392 		pdtimet(es->tms_utime, bs->tms_utime);
393 #  else	/* POSIX */
394 		pdtimet(es->tms_utime, bs->tms_utime);
395 #  endif /* POSIX */
396 # endif	/* _SEQUENT_ */
397 #endif /* BSDTIMES */
398 		break;
399 
400 	    case 'S':		/* system CPU time used	*/
401 #ifdef BSDTIMES
402 		pdeltat(&r1->ru_stime, &r0->ru_stime);
403 #else
404 # ifdef	_SEQUENT_
405 		pdeltat(&r1->ps_stime, &r0->ps_stime);
406 # else /* _SEQUENT_ */
407 #  ifndef POSIX
408 		pdtimet(es->tms_stime, bs->tms_stime);
409 #  else	/* POSIX */
410 		pdtimet(es->tms_stime, bs->tms_stime);
411 #  endif /* POSIX */
412 # endif	/* _SEQUENT_ */
413 #endif /* BSDTIMES */
414 		break;
415 
416 	    case 'E':		/* elapsed (wall-clock)	time */
417 #ifdef BSDTIMES
418 		pcsecs((long) ms);
419 #else /* BSDTIMES */
420 		pcsecs(ms);
421 #endif /* BSDTIMES */
422 		break;
423 
424 	    case 'P':		/* percent time	spent running */
425 		/* check if the	process	did not	run */
426 #ifdef convex
427 		/*
428 		 * scale the cpu %- ages by the	number of processors
429 		 * available on	this machine
430 		 */
431 		if ((sysinfo.cpu_count == 0) &&
432 		    (getsysinfo(SYSINFO_SIZE, &sysinfo)	< 0))
433 		    sysinfo.cpu_count =	1;
434 		    i =	(ms == 0) ? 0 :	(t * 1000.0 / (ms * sysinfo.cpu_count));
435 #else /* convex	*/
436 		i = (ms	== 0) ?	0 : (long)(t * 1000.0 / ms);
437 #endif /* convex */
438 		xprintf("%ld.%01ld%%", i / 10, i % 10);	/* nn.n% */
439 		break;
440 
441 #ifdef BSDTIMES
442 	    case 'W':		/* number of swaps */
443 #ifdef _OSD_POSIX
444 		i = 0;
445 #else
446 		i = r1->ru_nswap - r0->ru_nswap;
447 #endif
448 		xprintf("%ld", i);
449 		break;
450 
451 #ifdef convex
452 	    case 'X':		/* (average) shared text size */
453 		memtmp = (t == 0 ? 0LL : IADJUST((long long)r1->ru_ixrss -
454 				 (long long)r0->ru_ixrss) /
455 			 (long long)t);
456 		xprintf("%lu", (unsigned long)memtmp);
457 		break;
458 
459 	    case 'D':		/* (average) unshared data size	*/
460 		memtmp = (t == 0 ? 0LL : IADJUST((long long)r1->ru_idrss +
461 				 (long long)r1->ru_isrss -
462 				 ((long	long)r0->ru_idrss +
463 				  (long	long)r0->ru_isrss)) /
464 			 (long long)t);
465 		xprintf("%lu", (unsigned long)memtmp);
466 		break;
467 
468 	    case 'K':		/* (average) total data	memory used  */
469 		memtmp = (t == 0 ? 0LL : IADJUST(((long	long)r1->ru_ixrss +
470 				  (long	long)r1->ru_isrss +
471 				  (long	long)r1->ru_idrss) -
472 				  ((long long)r0->ru_ixrss +
473 				   (long long)r0->ru_idrss +
474 				   (long long)r0->ru_isrss)) /
475 			 (long long)t);
476 		xprintf("%lu", (unsigned long)memtmp);
477 		break;
478 #else /* !convex */
479 	    case 'X':		/* (average) shared text size */
480 #ifdef _OSD_POSIX
481 		xprintf("0",0);
482 #else
483 		xprintf("%lld", (long long)(t == 0 ?	0L :
484 			IADJUST(r1->ru_ixrss - r0->ru_ixrss) / t));
485 #endif
486 		break;
487 
488 	    case 'D':		/* (average) unshared data size	*/
489 #ifdef _OSD_POSIX
490 		xprintf("0",0);
491 #else
492 		xprintf("%lld", (long long)(t == 0 ?	0L :
493 			IADJUST(r1->ru_idrss + r1->ru_isrss -
494 				(r0->ru_idrss +	r0->ru_isrss)) / t));
495 #endif
496 		break;
497 
498 	    case 'K':		/* (average) total data	memory used  */
499 #ifdef _OSD_POSIX
500 		xprintf("0",0);
501 #else
502 		xprintf("%lld", (long long)(t == 0 ? 0L :
503 			IADJUST((r1->ru_ixrss +	r1->ru_isrss + r1->ru_idrss) -
504 			   (r0->ru_ixrss + r0->ru_idrss	+ r0->ru_isrss)) / t));
505 #endif
506 		break;
507 #endif /* convex */
508 	    case 'M':		/* max.	Resident Set Size */
509 #ifdef SUNOS4
510 		xprintf("%ld", (long)pagetok(r1->ru_maxrss));
511 #else
512 # ifdef	convex
513 		xprintf("%ld", (long)(r1->ru_maxrss * 4L));
514 # else /* !convex */
515 #  ifdef _OSD_POSIX
516 		xprintf("0",0);
517 #  else
518 		xprintf("%ld", (long)r1->ru_maxrss);
519 #  endif
520 # endif	/* convex */
521 #endif /* SUNOS4 */
522 		break;
523 
524 	    case 'F':		/* page	faults */
525 #ifdef _OSD_POSIX
526 		xprintf("0",0);
527 #else
528 		xprintf("%ld", (long)(r1->ru_majflt - r0->ru_majflt));
529 #endif
530 		break;
531 
532 	    case 'R':		/* page	reclaims */
533 #ifdef _OSD_POSIX
534 		xprintf("0",0);
535 #else
536 		xprintf("%ld", (long)(r1->ru_minflt - r0->ru_minflt));
537 #endif
538 		break;
539 
540 	    case 'I':		/* FS blocks in	*/
541 #ifdef _OSD_POSIX
542 		xprintf("0",0);
543 #else
544 		xprintf("%ld", (long)(r1->ru_inblock - r0->ru_inblock));
545 #endif
546 		break;
547 
548 	    case 'O':		/* FS blocks out */
549 #ifdef _OSD_POSIX
550 		xprintf("0",0);
551 #else
552 		xprintf("%ld", (long)(r1->ru_oublock - r0->ru_oublock));
553 #endif
554 		break;
555 
556 # ifdef	convex
557 	    case 'C':			/*  CPU	parallelization	factor */
558 		if (r1->ru_usamples	!= 0LL)	{
559 		    long long parr = ((r1->ru_utotal * 100LL) /
560 				      r1->ru_usamples);
561 		    xprintf("%d.%02d", (int)(parr/100), (int)(parr%100));
562 		} else
563 		    xprintf("?");
564 		break;
565 # endif	/* convex */
566 	    case 'r':		/* PWP:	socket messages	recieved */
567 #ifdef _OSD_POSIX
568 		xprintf("0",0);
569 #else
570 		xprintf("%ld", (long)(r1->ru_msgrcv - r0->ru_msgrcv));
571 #endif
572 		break;
573 
574 	    case 's':		/* PWP:	socket messages	sent */
575 #ifdef _OSD_POSIX
576 		xprintf("0",0);
577 #else
578 		xprintf("%ld", (long)(r1->ru_msgsnd - r0->ru_msgsnd));
579 #endif
580 		break;
581 
582 	    case 'k':		/* PWP:	signals	received */
583 #ifdef _OSD_POSIX
584 		xprintf("0",0);
585 #else
586 		xprintf("%ld", (long)(r1->ru_nsignals - r0->ru_nsignals));
587 #endif
588 		break;
589 
590 	    case 'w':		/* PWP:	voluntary context switches (waits) */
591 #ifdef _OSD_POSIX
592 		xprintf("0",0);
593 #else
594 		xprintf("%ld", (long)(r1->ru_nvcsw - r0->ru_nvcsw));
595 #endif
596 		break;
597 
598 	    case 'c':		/* PWP:	involuntary context switches */
599 #ifdef _OSD_POSIX
600 		xprintf("0",0);
601 #else
602 		xprintf("%ld", (long)(r1->ru_nivcsw - r0->ru_nivcsw));
603 #endif
604 		break;
605 #else /* BSDTIMES */
606 # ifdef	_SEQUENT_
607 	    case 'W':		/* number of swaps */
608 		i = r1->ps_swap	- r0->ps_swap;
609 		xprintf("%ld", (long)i);
610 		break;
611 
612 	    case 'M':
613 		xprintf("%ld", (long)r1->ps_maxrss);
614 		break;
615 
616 	    case 'F':
617 		xprintf("%ld", (long)(r1->ps_pagein - r0->ps_pagein));
618 		break;
619 
620 	    case 'R':
621 		xprintf("%ld", (long)(r1->ps_reclaim -	r0->ps_reclaim));
622 		break;
623 
624 	    case 'I':
625 		xprintf("%ld", (long)(r1->ps_bread - r0->ps_bread));
626 		break;
627 
628 	    case 'O':
629 		xprintf("%ld", (long)(r1->ps_bwrite - r0->ps_bwrite));
630 		break;
631 
632 	    case 'k':
633 		xprintf("%ld", (long)(r1->ps_signal - r0->ps_signal));
634 		break;
635 
636 	    case 'w':
637 		xprintf("%ld", (long)(r1->ps_volcsw - r0->ps_volcsw));
638 		break;
639 
640 	    case 'c':
641 		xprintf("%ld", r1->ps_involcsw - r0->ps_involcsw);
642 		break;
643 
644 	    case 'Z':
645 		xprintf("%ld", (long)(r1->ps_zerofill - r0->ps_zerofill));
646 		break;
647 
648 	    case 'i':
649 		xprintf("%ld", (long)(r1->ps_pffincr - r0->ps_pffincr));
650 		break;
651 
652 	    case 'd':
653 		xprintf("%ld", (long)(r1->ps_pffdecr - r0->ps_pffdecr));
654 		break;
655 
656 	    case 'Y':
657 		xprintf("%ld", (long)(r1->ps_syscall - r0->ps_syscall));
658 		break;
659 
660 	    case 'l':
661 		xprintf("%ld", (long)(r1->ps_lread - r0->ps_lread));
662 		break;
663 
664 	    case 'm':
665 		xprintf("%ld", (long)(r1->ps_lwrite - r0->ps_lwrite));
666 		break;
667 
668 	    case 'p':
669 		xprintf("%ld", (long)(r1->ps_phread - r0->ps_phread));
670 		break;
671 
672 	    case 'q':
673 		xprintf("%ld", (long)(r1->ps_phwrite - r0->ps_phwrite));
674 		break;
675 # endif	/* _SEQUENT_ */
676 #endif /* BSDTIMES */
677 	    default:
678 		break;
679 	    }
680     xputchar('\n');
681     haderr = ohaderr;
682 }
683 
684 #if defined(BSDTIMES) || defined(_SEQUENT_)
685 static void
686 pdeltat(timeval_t *t1, timeval_t *t0)
687 {
688     timeval_t td;
689 
690     tvsub(&td, t1, t0);
691     xprintf("%lld.%03ld", (long long)td.tv_sec, (long)td.tv_usec / 1000L);
692 }
693 
694 static void
695 tvadd(timeval_t *tsum, timeval_t *t0)
696 {
697 
698     tsum->tv_sec += t0->tv_sec;
699     tsum->tv_usec += t0->tv_usec;
700     if (tsum->tv_usec >= 1000000)
701 	tsum->tv_sec++,	tsum->tv_usec -= 1000000;
702 }
703 
704 void
705 tvsub(timeval_t *tdiff, timeval_t *t1, timeval_t *t0)
706 {
707 
708     tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
709     tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
710     if (tdiff->tv_usec < 0)
711 	tdiff->tv_sec--, tdiff->tv_usec	+= 1000000;
712 }
713 
714 #else /* !BSDTIMES && !_SEQUENT_ */
715 static void
716 #ifndef	POSIX
717 pdtimet(time_t eval, time_t bval)
718 
719 #else /* POSIX */
720 pdtimet(clock_t eval, clock_t bval)
721 
722 #endif /* POSIX	*/
723 {
724 #ifndef	POSIX
725     time_t  val;
726 
727 #else /* POSIX */
728     clock_t val;
729 
730 #endif /* POSIX	*/
731 
732 #ifndef	POSIX
733     val	= (eval	- bval)	* 100 /	HZ;
734 #else /* POSIX */
735     val	= (eval	- bval)	* 100 /	clk_tck;
736 #endif /* POSIX	*/
737 
738     xprintf("%lld.%02ld", (long long)(val / 100),
739 	(long long)(val - (val / 100 * 100)));
740 }
741 #endif /* BSDTIMES || _SEQUENT_	*/
742