sh.time.c revision 167465
1/* $Header: /p/tcsh/cvsroot/tcsh/sh.time.c,v 3.33 2006/03/02 18:46:44 christos Exp $ */
2/*
3 * sh.time.c: Shell time keeping and printing.
4 */
5/*-
6 * Copyright (c) 1980, 1991 The	Regents	of the University of California.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and	binary forms, with or without
10 * modification, are permitted provided	that the following conditions
11 * are met:
12 * 1. Redistributions of source	code must retain the above copyright
13 *    notice, this list	of conditions and the following	disclaimer.
14 * 2. Redistributions in binary	form must reproduce the	above copyright
15 *    notice, this list	of conditions and the following	disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or	promote	products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS	SOFTWARE IS PROVIDED BY	THE REGENTS AND	CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT	SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR	CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES;	LOSS OF	USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH	DAMAGE.
32 */
33#include "sh.h"
34
35RCSID("$tcsh: sh.time.c,v 3.33 2006/03/02 18:46:44 christos Exp $")
36
37#ifdef SUNOS4
38# include <machine/param.h>
39#endif /* SUNOS4 */
40
41/*
42 * C Shell - routines handling process timing and niceing
43 */
44#ifdef BSDTIMES
45# ifndef RUSAGE_SELF
46#  define	RUSAGE_SELF	0
47#  define	RUSAGE_CHILDREN	-1
48# endif	/* RUSAGE_SELF */
49#else /* BSDTIMES */
50struct tms times0;
51#endif /* BSDTIMES */
52
53#if !defined(BSDTIMES) && !defined(_SEQUENT_)
54# ifdef	POSIX
55static	void	pdtimet	(clock_t, clock_t);
56# else /* ! POSIX */
57static	void	pdtimet	(time_t, time_t);
58# endif	/* ! POSIX */
59#else /* BSDTIMES || _SEQUENT_ */
60static	void	tvadd	(timeval_t *, timeval_t *);
61static	void	pdeltat	(timeval_t *, timeval_t *);
62#endif /* BSDTIMES || _SEQUENT_	*/
63
64void
65settimes(void)
66{
67#ifdef BSDTIMES
68    struct sysrusage ruch;
69#ifdef convex
70    memset(&ru0, 0, sizeof(ru0));
71    memset(&ruch, 0, sizeof(ruch));
72#endif /* convex */
73
74    (void) gettimeofday(&time0,	NULL);
75    (void) getrusage(RUSAGE_SELF, (struct rusage *) &ru0);
76    (void) getrusage(RUSAGE_CHILDREN, (struct rusage *) &ruch);
77    ruadd(&ru0,	&ruch);
78#else
79# ifdef	_SEQUENT_
80    struct process_stats ruch;
81
82    (void) get_process_stats(&time0, PS_SELF, &ru0, &ruch);
83    ruadd(&ru0,	&ruch);
84# else	/* _SEQUENT_ */
85    seconds0 = time(NULL);
86    time0 = times(&times0);
87    times0.tms_stime +=	times0.tms_cstime;
88    times0.tms_utime +=	times0.tms_cutime;
89    times0.tms_cstime =	0;
90    times0.tms_cutime =	0;
91# endif	/* _SEQUENT_ */
92#endif /* BSDTIMES */
93}
94
95/*
96 * dotime is only called if it is truly	a builtin function and not a
97 * prefix to another command
98 */
99/*ARGSUSED*/
100void
101dotime(Char **v, struct command *c)
102{
103#ifdef BSDTIMES
104    timeval_t timedol;
105    struct sysrusage ru1, ruch;
106#ifdef convex
107    memset(&ru1, 0, sizeof(ru1));
108    memset(&ruch, 0, sizeof(ruch));
109#endif /* convex */
110
111    (void) getrusage(RUSAGE_SELF, (struct rusage *) &ru1);
112    (void) getrusage(RUSAGE_CHILDREN, (struct rusage *) &ruch);
113    ruadd(&ru1,	&ruch);
114    (void) gettimeofday(&timedol, NULL);
115    prusage(&ru0, &ru1,	&timedol, &time0);
116#else
117# ifdef	_SEQUENT_
118    timeval_t timedol;
119    struct process_stats ru1, ruch;
120
121    (void) get_process_stats(&timedol, PS_SELF,	&ru1, &ruch);
122    ruadd(&ru1,	&ruch);
123    prusage(&ru0, &ru1,	&timedol, &time0);
124# else /* _SEQUENT_ */
125#  ifndef POSIX
126    time_t  timedol;
127#  else	/* POSIX */
128    clock_t timedol;
129#  endif /* POSIX */
130
131    struct tms times_dol;
132
133    timedol = times(&times_dol);
134    times_dol.tms_stime	+= times_dol.tms_cstime;
135    times_dol.tms_utime	+= times_dol.tms_cutime;
136    times_dol.tms_cstime = 0;
137    times_dol.tms_cutime = 0;
138    prusage(&times0, &times_dol, timedol, time0);
139# endif	/* _SEQUENT_ */
140#endif /* BSDTIMES */
141    USE(c);
142    USE(v);
143}
144
145/*
146 * donice is only called when it on the	line by	itself or with a +- value
147 */
148/*ARGSUSED*/
149void
150donice(Char **v, struct command *c)
151{
152    Char *cp;
153    int	    nval = 0;
154
155    USE(c);
156    v++, cp = *v++;
157    if (cp == 0)
158	nval = 4;
159    else if (*v	== 0 &&	any("+-", cp[0]))
160	nval = getn(cp);
161#ifdef HAVE_SETPRIORITY
162    if (setpriority(PRIO_PROCESS, 0, nval) == -1 && errno)
163	stderror(ERR_SYSTEM, "setpriority", strerror(errno));
164#else /* !HAVE_SETPRIORITY */
165    (void) nice(nval);
166#endif /* HAVE_SETPRIORITY */
167}
168
169#ifdef BSDTIMES
170void
171ruadd(struct sysrusage *ru, struct sysrusage *ru2)
172{
173    tvadd(&ru->ru_utime, &ru2->ru_utime);
174    tvadd(&ru->ru_stime, &ru2->ru_stime);
175#ifndef _OSD_POSIX
176    if (ru2->ru_maxrss > ru->ru_maxrss)
177	ru->ru_maxrss =	ru2->ru_maxrss;
178
179    ru->ru_ixrss += ru2->ru_ixrss;
180    ru->ru_idrss += ru2->ru_idrss;
181    ru->ru_isrss += ru2->ru_isrss;
182    ru->ru_minflt += ru2->ru_minflt;
183    ru->ru_majflt += ru2->ru_majflt;
184    ru->ru_nswap += ru2->ru_nswap;
185    ru->ru_inblock += ru2->ru_inblock;
186    ru->ru_oublock += ru2->ru_oublock;
187    ru->ru_msgsnd += ru2->ru_msgsnd;
188    ru->ru_msgrcv += ru2->ru_msgrcv;
189    ru->ru_nsignals += ru2->ru_nsignals;
190    ru->ru_nvcsw += ru2->ru_nvcsw;
191    ru->ru_nivcsw += ru2->ru_nivcsw;
192#endif /*bs2000*/
193
194# ifdef	convex
195    tvadd(&ru->ru_exutime, &ru2->ru_exutime);
196    ru->ru_utotal += ru2->ru_utotal;
197    ru->ru_usamples += ru2->ru_usamples;
198    ru->ru_stotal += ru2->ru_stotal;
199    ru->ru_ssamples += ru2->ru_ssamples;
200# endif	/* convex */
201}
202
203#else /* BSDTIMES */
204# ifdef	_SEQUENT_
205void
206ruadd(struct process_stats *ru, struct process_stats *ru2)
207{
208    tvadd(&ru->ps_utime, &ru2->ps_utime);
209    tvadd(&ru->ps_stime, &ru2->ps_stime);
210    if (ru2->ps_maxrss > ru->ps_maxrss)
211	ru->ps_maxrss =	ru2->ps_maxrss;
212
213    ru->ps_pagein += ru2->ps_pagein;
214    ru->ps_reclaim += ru2->ps_reclaim;
215    ru->ps_zerofill += ru2->ps_zerofill;
216    ru->ps_pffincr += ru2->ps_pffincr;
217    ru->ps_pffdecr += ru2->ps_pffdecr;
218    ru->ps_swap	+= ru2->ps_swap;
219    ru->ps_syscall += ru2->ps_syscall;
220    ru->ps_volcsw += ru2->ps_volcsw;
221    ru->ps_involcsw += ru2->ps_involcsw;
222    ru->ps_signal += ru2->ps_signal;
223    ru->ps_lread += ru2->ps_lread;
224    ru->ps_lwrite += ru2->ps_lwrite;
225    ru->ps_bread += ru2->ps_bread;
226    ru->ps_bwrite += ru2->ps_bwrite;
227    ru->ps_phread += ru2->ps_phread;
228    ru->ps_phwrite += ru2->ps_phwrite;
229}
230
231# endif	/* _SEQUENT_ */
232#endif /* BSDTIMES */
233
234#ifdef BSDTIMES
235
236/*
237 * PWP:	the LOG1024 and	pagetok	stuff taken from the top command,
238 * written by William LeFebvre
239 */
240/* Log base 2 of 1024 is 10 (2^10 == 1024) */
241#define	LOG1024		10
242
243/* Convert clicks (kernel pages) to kbytes ... */
244/* If there is no PGSHIFT defined, assume it is	11 */
245/* Is this needed for compatability with some old flavor of 4.2	or 4.1?	*/
246#ifdef SUNOS4
247# ifndef PGSHIFT
248#  define pagetok(size)	  ((size) << 1)
249# else
250#  if PGSHIFT>10
251#   define pagetok(size)   ((size) << (PGSHIFT - LOG1024))
252#  else
253#   define pagetok(size)   ((size) >> (LOG1024 - PGSHIFT))
254#  endif
255# endif
256#endif
257
258/*
259 * if any other	machines return	wierd values in	the ru_i* stuff, put
260 * the adjusting macro here:
261 */
262#ifdef SUNOS4
263# define IADJUST(i)	(pagetok(i)/2)
264#else /* SUNOS4	*/
265# ifdef	convex
266   /*
267    * convex has megabytes * CLK_TCK
268    * multiply by 100 since we use time	in 100ths of a second in prusage
269    */
270#  define IADJUST(i) (((i) << 10) / CLK_TCK * 100)
271# else /* convex */
272#  define IADJUST(i)	(i)
273# endif	/* convex */
274#endif /* SUNOS4 */
275
276void
277prusage(struct sysrusage *r0, struct sysrusage *r1, timeval_t *e, timeval_t *b)
278
279#else /* BSDTIMES */
280# ifdef	_SEQUENT_
281void
282prusage(struct process_stats *r0, struct process_stats *r1, timeval_t e,
283	timeval_t b)
284
285# else /* _SEQUENT_ */
286#  ifndef POSIX
287void
288prusage(struct tms *bs, struct tms *es, time_t e, time_t b)
289#  else	/* POSIX */
290void
291prusage(struct tms *bs, struct tms *es, clock_t e, clock_t b)
292#  endif /* POSIX */
293# endif	/* _SEQUENT_ */
294#endif /* BSDTIMES */
295{
296#ifdef BSDTIMES
297    time_t t =
298    (r1->ru_utime.tv_sec - r0->ru_utime.tv_sec)	* 100 +
299    (r1->ru_utime.tv_usec - r0->ru_utime.tv_usec) / 10000 +
300    (r1->ru_stime.tv_sec - r0->ru_stime.tv_sec)	* 100 +
301    (r1->ru_stime.tv_usec - r0->ru_stime.tv_usec) / 10000;
302
303#else
304# ifdef	_SEQUENT_
305    time_t t =
306    (r1->ps_utime.tv_sec - r0->ps_utime.tv_sec)	* 100 +
307    (r1->ps_utime.tv_usec - r0->ps_utime.tv_usec) / 10000 +
308    (r1->ps_stime.tv_sec - r0->ps_stime.tv_sec)	* 100 +
309    (r1->ps_stime.tv_usec - r0->ps_stime.tv_usec) / 10000;
310
311# else /* _SEQUENT_ */
312#  ifndef POSIX
313    time_t t =	(es->tms_utime - bs->tms_utime +
314			 es->tms_stime - bs->tms_stime)	* 100 /	HZ;
315
316#  else	/* POSIX */
317    clock_t t = (es->tms_utime	- bs->tms_utime	+
318			  es->tms_stime	- bs->tms_stime) * 100 / clk_tck;
319
320#  endif /* POSIX */
321# endif	/* _SEQUENT_ */
322#endif /* BSDTIMES */
323
324    const char *cp;
325    long i;
326    struct varent *vp = adrof(STRtime);
327
328#ifdef BSDTIMES
329# ifdef	convex
330    static struct system_information sysinfo;
331    long long memtmp;	/* let memory calculations exceede 2Gb */
332# endif	/* convex */
333    int	    ms = (int)
334    ((e->tv_sec	- b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000);
335
336    cp = "%Uu %Ss %E %P	%X+%Dk %I+%Oio %Fpf+%Ww";
337#else /* !BSDTIMES */
338# ifdef	_SEQUENT_
339    int	    ms = (int)
340    ((e->tv_sec	- b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000);
341
342    cp = "%Uu %Ss %E %P	%I+%Oio	%Fpf+%Ww";
343# else /* !_SEQUENT_ */
344#  ifndef POSIX
345    time_t ms = ((time_t)((e - b) / HZ) * 100) +
346		 (time_t)(((e - b) % HZ) * 100) / HZ;
347#  else	/* POSIX */
348    clock_t ms = ((clock_t)((e - b) / clk_tck) * 100) +
349		  (clock_t)(((e - b) % clk_tck) * 100) / clk_tck;
350#  endif /* POSIX */
351
352    cp = "%Uu %Ss %E %P";
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	    es->tms_utime, bs->tms_utime);
370    xprintf("es->tms_stime %lu bs->tms_stime %lu\n",
371	    es->tms_stime, bs->tms_stime);
372    xprintf("ms	%lu e %lu b %lu\n", ms,	e, b);
373    xprintf("t %lu\n", 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("%ld", 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("%ld", 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("%ld", 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", pagetok(r1->ru_maxrss));
511#else
512# ifdef	convex
513		xprintf("%ld", r1->ru_maxrss * 4L);
514# else /* !convex */
515#  ifdef _OSD_POSIX
516		xprintf("0",0);
517#  else
518		xprintf("%ld", r1->ru_maxrss / 2L);
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", 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", 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", 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", 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", 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", 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", 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", 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", 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", i);
610		break;
611
612	    case 'M':
613		xprintf("%ld", r1->ps_maxrss / 2);
614		break;
615
616	    case 'F':
617		xprintf("%ld", r1->ps_pagein - r0->ps_pagein);
618		break;
619
620	    case 'R':
621		xprintf("%ld", r1->ps_reclaim -	r0->ps_reclaim);
622		break;
623
624	    case 'I':
625		xprintf("%ld", r1->ps_bread - r0->ps_bread);
626		break;
627
628	    case 'O':
629		xprintf("%ld", r1->ps_bwrite - r0->ps_bwrite);
630		break;
631
632	    case 'k':
633		xprintf("%ld", r1->ps_signal - r0->ps_signal);
634		break;
635
636	    case 'w':
637		xprintf("%ld", 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", r1->ps_zerofill - r0->ps_zerofill);
646		break;
647
648	    case 'i':
649		xprintf("%ld", r1->ps_pffincr -	r0->ps_pffincr);
650		break;
651
652	    case 'd':
653		xprintf("%ld", r1->ps_pffdecr -	r0->ps_pffdecr);
654		break;
655
656	    case 'Y':
657		xprintf("%ld", r1->ps_syscall -	r0->ps_syscall);
658		break;
659
660	    case 'l':
661		xprintf("%ld", r1->ps_lread - r0->ps_lread);
662		break;
663
664	    case 'm':
665		xprintf("%ld", r1->ps_lwrite - r0->ps_lwrite);
666		break;
667
668	    case 'p':
669		xprintf("%ld", r1->ps_phread - r0->ps_phread);
670		break;
671
672	    case 'q':
673		xprintf("%ld", r1->ps_phwrite -	r0->ps_phwrite);
674		break;
675# endif	/* _SEQUENT_ */
676#endif /* BSDTIMES */
677	    default:
678		break;
679	    }
680    xputchar('\n');
681}
682
683#if defined(BSDTIMES) || defined(_SEQUENT_)
684static void
685pdeltat(timeval_t *t1, timeval_t *t0)
686{
687    timeval_t td;
688
689    tvsub(&td, t1, t0);
690    xprintf("%ld.%03ld", td.tv_sec, td.tv_usec / 1000L);
691}
692
693static void
694tvadd(timeval_t *tsum, timeval_t *t0)
695{
696
697    tsum->tv_sec += t0->tv_sec;
698    tsum->tv_usec += t0->tv_usec;
699    if (tsum->tv_usec >= 1000000)
700	tsum->tv_sec++,	tsum->tv_usec -= 1000000;
701}
702
703void
704tvsub(timeval_t *tdiff, timeval_t *t1, timeval_t *t0)
705{
706
707    tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
708    tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
709    if (tdiff->tv_usec < 0)
710	tdiff->tv_sec--, tdiff->tv_usec	+= 1000000;
711}
712
713#else /* !BSDTIMES && !_SEQUENT_ */
714static void
715#ifndef	POSIX
716pdtimet(time_t eval, time_t bval)
717
718#else /* POSIX */
719pdtimet(clock_t eval, clock_t bval)
720
721#endif /* POSIX	*/
722{
723#ifndef	POSIX
724    time_t  val;
725
726#else /* POSIX */
727    clock_t val;
728
729#endif /* POSIX	*/
730
731#ifndef	POSIX
732    val	= (eval	- bval)	* 100 /	HZ;
733#else /* POSIX */
734    val	= (eval	- bval)	* 100 /	clk_tck;
735#endif /* POSIX	*/
736
737    xprintf("%ld.%02ld", val / 100, val	- (val / 100 * 100));
738}
739#endif /* BSDTIMES || _SEQUENT_	*/
740