1/* $Header: /src/pub/tcsh/sh.time.c,v 3.25 2002/06/25 19:02:11 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("$Id: sh.time.c,v 3.25 2002/06/25 19:02:11 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 __P((clock_t, clock_t));
56# else /* ! POSIX */
57static void pdtimet __P((time_t, time_t));
58# endif /* ! POSIX */
59#else /* BSDTIMES || _SEQUENT_ */
60static void tvadd __P((timeval_t *, timeval_t *));
61static void pdeltat __P((timeval_t *, timeval_t *));
62#endif /* BSDTIMES || _SEQUENT_ */
63
64void
65settimes()
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# ifndef COHERENT
87 time0 = times(&times0);
88# else /* !COHERENT */
89 time0 = HZ * seconds0;
90 times(&times0);
91# endif /* !COHERENT */
92 times0.tms_stime += times0.tms_cstime;
93 times0.tms_utime += times0.tms_cutime;
94 times0.tms_cstime = 0;
95 times0.tms_cutime = 0;
96# endif /* _SEQUENT_ */
97#endif /* BSDTIMES */
98}
99
100/*
101 * dotime is only called if it is truly a builtin function and not a
102 * prefix to another command
103 */
104/*ARGSUSED*/
105void
106dotime(v, c)
107 Char **v;
108 struct command *c;
109{
110#ifdef BSDTIMES
111 timeval_t timedol;
112 struct sysrusage ru1, ruch;
113#ifdef convex
114 memset(&ru1, 0, sizeof(ru1));
115 memset(&ruch, 0, sizeof(ruch));
116#endif /* convex */
117
118 (void) getrusage(RUSAGE_SELF, (struct rusage *) &ru1);
119 (void) getrusage(RUSAGE_CHILDREN, (struct rusage *) &ruch);
120 ruadd(&ru1, &ruch);
121 (void) gettimeofday(&timedol, NULL);
122 prusage(&ru0, &ru1, &timedol, &time0);
123#else
124# ifdef _SEQUENT_
125 timeval_t timedol;
126 struct process_stats ru1, ruch;
127
128 (void) get_process_stats(&timedol, PS_SELF, &ru1, &ruch);
129 ruadd(&ru1, &ruch);
130 prusage(&ru0, &ru1, &timedol, &time0);
131# else /* _SEQUENT_ */
132# ifndef POSIX
133 time_t timedol;
134# else /* POSIX */
135 clock_t timedol;
136# endif /* POSIX */
137
138 struct tms times_dol;
139
140#ifndef COHERENT
141 timedol = times(&times_dol);
142#else
143 timedol = HZ * time(NULL);
144 times(&times_dol);
145#endif
146 times_dol.tms_stime += times_dol.tms_cstime;
147 times_dol.tms_utime += times_dol.tms_cutime;
148 times_dol.tms_cstime = 0;
149 times_dol.tms_cutime = 0;
150 prusage(&times0, &times_dol, timedol, time0);
151# endif /* _SEQUENT_ */
152#endif /* BSDTIMES */
153 USE(c);
154 USE(v);
155}
156
157/*
158 * donice is only called when it on the line by itself or with a +- value
159 */
160/*ARGSUSED*/
161void
162donice(v, c)
163 register Char **v;
164 struct command *c;
165{
166 register Char *cp;
167 int nval = 0;
168
169 USE(c);
170 v++, cp = *v++;
171 if (cp == 0)
172 nval = 4;
173 else if (*v == 0 && any("+-", cp[0]))
174 nval = getn(cp);
175#ifdef BSDNICE
176 if (setpriority(PRIO_PROCESS, 0, nval) == -1 && errno)
177 stderror(ERR_SYSTEM, "setpriority", strerror(errno));
178#else /* BSDNICE */
179 (void) nice(nval);
180#endif /* BSDNICE */
181}
182
183#ifdef BSDTIMES
184void
185ruadd(ru, ru2)
186 register struct sysrusage *ru, *ru2;
187{
188 tvadd(&ru->ru_utime, &ru2->ru_utime);
189 tvadd(&ru->ru_stime, &ru2->ru_stime);
190 if (ru2->ru_maxrss > ru->ru_maxrss)
191 ru->ru_maxrss = ru2->ru_maxrss;
192
193 ru->ru_ixrss += ru2->ru_ixrss;
194 ru->ru_idrss += ru2->ru_idrss;
195 ru->ru_isrss += ru2->ru_isrss;
196 ru->ru_minflt += ru2->ru_minflt;
197 ru->ru_majflt += ru2->ru_majflt;
198 ru->ru_nswap += ru2->ru_nswap;
199 ru->ru_inblock += ru2->ru_inblock;
200 ru->ru_oublock += ru2->ru_oublock;
201 ru->ru_msgsnd += ru2->ru_msgsnd;
202 ru->ru_msgrcv += ru2->ru_msgrcv;
203 ru->ru_nsignals += ru2->ru_nsignals;
204 ru->ru_nvcsw += ru2->ru_nvcsw;
205 ru->ru_nivcsw += ru2->ru_nivcsw;
206
207# ifdef convex
208 tvadd(&ru->ru_exutime, &ru2->ru_exutime);
209 ru->ru_utotal += ru2->ru_utotal;
210 ru->ru_usamples += ru2->ru_usamples;
211 ru->ru_stotal += ru2->ru_stotal;
212 ru->ru_ssamples += ru2->ru_ssamples;
213# endif /* convex */
214}
215
216#else /* BSDTIMES */
217# ifdef _SEQUENT_
218void
219ruadd(ru, ru2)
220 register struct process_stats *ru, *ru2;
221{
222 tvadd(&ru->ps_utime, &ru2->ps_utime);
223 tvadd(&ru->ps_stime, &ru2->ps_stime);
224 if (ru2->ps_maxrss > ru->ps_maxrss)
225 ru->ps_maxrss = ru2->ps_maxrss;
226
227 ru->ps_pagein += ru2->ps_pagein;
228 ru->ps_reclaim += ru2->ps_reclaim;
229 ru->ps_zerofill += ru2->ps_zerofill;
230 ru->ps_pffincr += ru2->ps_pffincr;
231 ru->ps_pffdecr += ru2->ps_pffdecr;
232 ru->ps_swap += ru2->ps_swap;
233 ru->ps_syscall += ru2->ps_syscall;
234 ru->ps_volcsw += ru2->ps_volcsw;
235 ru->ps_involcsw += ru2->ps_involcsw;
236 ru->ps_signal += ru2->ps_signal;
237 ru->ps_lread += ru2->ps_lread;
238 ru->ps_lwrite += ru2->ps_lwrite;
239 ru->ps_bread += ru2->ps_bread;
240 ru->ps_bwrite += ru2->ps_bwrite;
241 ru->ps_phread += ru2->ps_phread;
242 ru->ps_phwrite += ru2->ps_phwrite;
243}
244
245# endif /* _SEQUENT_ */
246#endif /* BSDTIMES */
247
248#ifdef BSDTIMES
249
250/*
251 * PWP: the LOG1024 and pagetok stuff taken from the top command,
252 * written by William LeFebvre
253 */
254/* Log base 2 of 1024 is 10 (2^10 == 1024) */
255#define LOG1024 10
256
257/* Convert clicks (kernel pages) to kbytes ... */
258/* If there is no PGSHIFT defined, assume it is 11 */
259/* Is this needed for compatability with some old flavor of 4.2 or 4.1? */
260#ifdef SUNOS4
261# ifndef PGSHIFT
262# define pagetok(size) ((size) << 1)
263# else
264# if PGSHIFT>10
265# define pagetok(size) ((size) << (PGSHIFT - LOG1024))
266# else
267# define pagetok(size) ((size) >> (LOG1024 - PGSHIFT))
268# endif
269# endif
270#endif
271
272/*
273 * if any other machines return wierd values in the ru_i* stuff, put
274 * the adjusting macro here:
275 */
276#ifdef SUNOS4
277# define IADJUST(i) (pagetok(i)/2)
278#else /* SUNOS4 */
279# ifdef convex
280 /*
281 * convex has megabytes * CLK_TCK
282 * multiply by 100 since we use time in 100ths of a second in prusage
283 */
284# define IADJUST(i) (((i) << 10) / CLK_TCK * 100)
285# else /* convex */
286# define IADJUST(i) (i)
287# endif /* convex */
288#endif /* SUNOS4 */
289
290void
291prusage(r0, r1, e, b)
292 register struct sysrusage *r0, *r1;
293 timeval_t *e, *b;
294
295#else /* BSDTIMES */
296# ifdef _SEQUENT_
297void
298prusage(r0, r1, e, b)
299 register struct process_stats *r0, *r1;
300 timeval_t *e, *b;
301
302# else /* _SEQUENT_ */
303void
304prusage(bs, es, e, b)
305 struct tms *bs, *es;
306
307# ifndef POSIX
308 time_t e, b;
309
310# else /* POSIX */
311 clock_t e, b;
312
313# endif /* POSIX */
314# endif /* _SEQUENT_ */
315#endif /* BSDTIMES */
316{
317#ifdef BSDTIMES
318 register time_t t =
319 (r1->ru_utime.tv_sec - r0->ru_utime.tv_sec) * 100 +
320 (r1->ru_utime.tv_usec - r0->ru_utime.tv_usec) / 10000 +
321 (r1->ru_stime.tv_sec - r0->ru_stime.tv_sec) * 100 +
322 (r1->ru_stime.tv_usec - r0->ru_stime.tv_usec) / 10000;
323
324#else
325# ifdef _SEQUENT_
326 register time_t t =
327 (r1->ps_utime.tv_sec - r0->ps_utime.tv_sec) * 100 +
328 (r1->ps_utime.tv_usec - r0->ps_utime.tv_usec) / 10000 +
329 (r1->ps_stime.tv_sec - r0->ps_stime.tv_sec) * 100 +
330 (r1->ps_stime.tv_usec - r0->ps_stime.tv_usec) / 10000;
331
332# else /* _SEQUENT_ */
333# ifndef POSIX
334 register time_t t = (es->tms_utime - bs->tms_utime +
335 es->tms_stime - bs->tms_stime) * 100 / HZ;
336
337# else /* POSIX */
338 register clock_t t = (es->tms_utime - bs->tms_utime +
339 es->tms_stime - bs->tms_stime) * 100 / clk_tck;
340
341# endif /* POSIX */
342# endif /* _SEQUENT_ */
343#endif /* BSDTIMES */
344
345 register char *cp;
346 register long i;
347 register struct varent *vp = adrof(STRtime);
348
349#ifdef BSDTIMES
350# ifdef convex
351 static struct system_information sysinfo;
352 long long memtmp; /* let memory calculations exceede 2Gb */
353# endif /* convex */
354 int ms = (int)
355 ((e->tv_sec - b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000);
356
357 cp = "%Uu %Ss %E %P %X+%Dk %I+%Oio %Fpf+%Ww";
358#else /* !BSDTIMES */
359# ifdef _SEQUENT_
360 int ms = (int)
361 ((e->tv_sec - b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000);
362
363 cp = "%Uu %Ss %E %P %I+%Oio %Fpf+%Ww";
364# else /* !_SEQUENT_ */
365# ifndef POSIX
366 time_t ms = ((time_t)((e - b) / HZ) * 100) +
367 (time_t)(((e - b) % HZ) * 100) / HZ;
368# else /* POSIX */
369 clock_t ms = ((clock_t)((e - b) / clk_tck) * 100) +
370 (clock_t)(((e - b) % clk_tck) * 100) / clk_tck;
371# endif /* POSIX */
372
373 cp = "%Uu %Ss %E %P";
374
375 /*
376 * the tms stuff is not very precise, so we fudge it.
377 * granularity fix: can't be more than 100%
378 * this breaks in multi-processor systems...
379 * maybe I should take it out and let people see more then 100%
380 * utilizations.
381 */
382# if 0
383 if (ms < t && ms != 0)
384 ms = t;
385# endif
386# endif /*! _SEQUENT_ */
387#endif /* !BSDTIMES */
388#ifdef TDEBUG
389 xprintf("es->tms_utime %lu bs->tms_utime %lu\n",
390 es->tms_utime, bs->tms_utime);
391 xprintf("es->tms_stime %lu bs->tms_stime %lu\n",
392 es->tms_stime, bs->tms_stime);
393 xprintf("ms %lu e %lu b %lu\n", ms, e, b);
394 xprintf("t %lu\n", t);
395#endif /* TDEBUG */
396
397 if (vp && vp->vec && vp->vec[0] && vp->vec[1])
398 cp = short2str(vp->vec[1]);
399 for (; *cp; cp++)
400 if (*cp != '%')
401 xputchar(*cp);
402 else if (cp[1])
403 switch (*++cp) {
404
405 case 'U': /* user CPU time used */
406#ifdef BSDTIMES
407 pdeltat(&r1->ru_utime, &r0->ru_utime);
408#else
409# ifdef _SEQUENT_
410 pdeltat(&r1->ps_utime, &r0->ps_utime);
411# else /* _SEQUENT_ */
412# ifndef POSIX
413 pdtimet(es->tms_utime, bs->tms_utime);
414# else /* POSIX */
415 pdtimet(es->tms_utime, bs->tms_utime);
416# endif /* POSIX */
417# endif /* _SEQUENT_ */
418#endif /* BSDTIMES */
419 break;
420
421 case 'S': /* system CPU time used */
422#ifdef BSDTIMES
423 pdeltat(&r1->ru_stime, &r0->ru_stime);
424#else
425# ifdef _SEQUENT_
426 pdeltat(&r1->ps_stime, &r0->ps_stime);
427# else /* _SEQUENT_ */
428# ifndef POSIX
429 pdtimet(es->tms_stime, bs->tms_stime);
430# else /* POSIX */
431 pdtimet(es->tms_stime, bs->tms_stime);
432# endif /* POSIX */
433# endif /* _SEQUENT_ */
434#endif /* BSDTIMES */
435 break;
436
437 case 'E': /* elapsed (wall-clock) time */
438#ifdef BSDTIMES
439 pcsecs((long) ms);
440#else /* BSDTIMES */
441 pcsecs(ms);
442#endif /* BSDTIMES */
443 break;
444
445 case 'P': /* percent time spent running */
446 /* check if the process did not run */
447#ifdef convex
448 /*
449 * scale the cpu %- ages by the number of processors
450 * available on this machine
451 */
452 if ((sysinfo.cpu_count == 0) &&
453 (getsysinfo(SYSINFO_SIZE, &sysinfo) < 0))
454 sysinfo.cpu_count = 1;
455 i = (ms == 0) ? 0 : (t * 1000.0 / (ms * sysinfo.cpu_count));
456#else /* convex */
457 i = (ms == 0) ? 0 : (long)(t * 1000.0 / ms);
458#endif /* convex */
459 xprintf("%ld.%01ld%%", i / 10, i % 10); /* nn.n% */
460 break;
461
462#ifdef BSDTIMES
463 case 'W': /* number of swaps */
464 i = r1->ru_nswap - r0->ru_nswap;
465 xprintf("%ld", i);
466 break;
467
468#ifdef convex
469 case 'X': /* (average) shared text size */
470 memtmp = (t == 0 ? 0LL : IADJUST((long long)r1->ru_ixrss -
471 (long long)r0->ru_ixrss) /
472 (long long)t);
473 xprintf("%lu", (unsigned long)memtmp);
474
475 break;
476
477 case 'D': /* (average) unshared data size */
478 memtmp = (t == 0 ? 0LL : IADJUST((long long)r1->ru_idrss +
479 (long long)r1->ru_isrss -
480 ((long long)r0->ru_idrss +
481 (long long)r0->ru_isrss)) /
482 (long long)t);
483 xprintf("%lu", (unsigned long)memtmp);
484 break;
485
486 case 'K': /* (average) total data memory used */
487 memtmp = (t == 0 ? 0LL : IADJUST(((long long)r1->ru_ixrss +
488 (long long)r1->ru_isrss +
489 (long long)r1->ru_idrss) -
490 ((long long)r0->ru_ixrss +
491 (long long)r0->ru_idrss +
492 (long long)r0->ru_isrss)) /
493 (long long)t);
494 xprintf("%lu", (unsigned long)memtmp);
495 break;
496#else /* !convex */
497 case 'X': /* (average) shared text size */
498 xprintf("%ld", t == 0 ? 0L :
499 IADJUST(r1->ru_ixrss - r0->ru_ixrss) / t);
500 break;
501
502 case 'D': /* (average) unshared data size */
503 xprintf("%ld", t == 0 ? 0L :
504 IADJUST(r1->ru_idrss + r1->ru_isrss -
505 (r0->ru_idrss + r0->ru_isrss)) / t);
506 break;
507
508 case 'K': /* (average) total data memory used */
509 xprintf("%ld", t == 0 ? 0L :
510 IADJUST((r1->ru_ixrss + r1->ru_isrss + r1->ru_idrss) -
511 (r0->ru_ixrss + r0->ru_idrss + r0->ru_isrss)) / t);
512 break;
513#endif /* convex */
514 case 'M': /* max. Resident Set Size */
515#ifdef SUNOS4
516 xprintf("%ld", pagetok(r1->ru_maxrss));
517#else
518# ifdef convex
519 xprintf("%ld", r1->ru_maxrss * 4L);
520# else /* !convex */
521 xprintf("%ld", r1->ru_maxrss / 2L);
522# endif /* convex */
523#endif /* SUNOS4 */
524 break;
525
526 case 'F': /* page faults */
527 xprintf("%ld", r1->ru_majflt - r0->ru_majflt);
528 break;
529
530 case 'R': /* page reclaims */
531 xprintf("%ld", r1->ru_minflt - r0->ru_minflt);
532 break;
533
534 case 'I': /* FS blocks in */
535 xprintf("%ld", r1->ru_inblock - r0->ru_inblock);
536 break;
537
538 case 'O': /* FS blocks out */
539 xprintf("%ld", r1->ru_oublock - r0->ru_oublock);
540 break;
541
542# ifdef convex
543 case 'C': /* CPU parallelization factor */
544 if (r1->ru_usamples != 0LL) {
545 long long parr = ((r1->ru_utotal * 100LL) /
546 r1->ru_usamples);
547 xprintf("%d.%02d", (int)(parr/100), (int)(parr%100));
548 } else
549 xprintf("?");
550 break;
551# endif /* convex */
552 case 'r': /* PWP: socket messages recieved */
553 xprintf("%ld", r1->ru_msgrcv - r0->ru_msgrcv);
554 break;
555
556 case 's': /* PWP: socket messages sent */
557 xprintf("%ld", r1->ru_msgsnd - r0->ru_msgsnd);
558 break;
559
560 case 'k': /* PWP: signals received */
561 xprintf("%ld", r1->ru_nsignals - r0->ru_nsignals);
562 break;
563
564 case 'w': /* PWP: voluntary context switches (waits) */
565 xprintf("%ld", r1->ru_nvcsw - r0->ru_nvcsw);
566 break;
567
568 case 'c': /* PWP: involuntary context switches */
569 xprintf("%ld", r1->ru_nivcsw - r0->ru_nivcsw);
570 break;
571#else /* BSDTIMES */
572# ifdef _SEQUENT_
573 case 'W': /* number of swaps */
574 i = r1->ps_swap - r0->ps_swap;
575 xprintf("%ld", i);
576 break;
577
578 case 'M':
579 xprintf("%ld", r1->ps_maxrss / 2);
580 break;
581
582 case 'F':
583 xprintf("%ld", r1->ps_pagein - r0->ps_pagein);
584 break;
585
586 case 'R':
587 xprintf("%ld", r1->ps_reclaim - r0->ps_reclaim);
588 break;
589
590 case 'I':
591 xprintf("%ld", r1->ps_bread - r0->ps_bread);
592 break;
593
594 case 'O':
595 xprintf("%ld", r1->ps_bwrite - r0->ps_bwrite);
596 break;
597
598 case 'k':
599 xprintf("%ld", r1->ps_signal - r0->ps_signal);
600 break;
601
602 case 'w':
603 xprintf("%ld", r1->ps_volcsw - r0->ps_volcsw);
604 break;
605
606 case 'c':
607 xprintf("%ld", r1->ps_involcsw - r0->ps_involcsw);
608 break;
609
610 case 'Z':
611 xprintf("%ld", r1->ps_zerofill - r0->ps_zerofill);
612 break;
613
614 case 'i':
615 xprintf("%ld", r1->ps_pffincr - r0->ps_pffincr);
616 break;
617
618 case 'd':
619 xprintf("%ld", r1->ps_pffdecr - r0->ps_pffdecr);
620 break;
621
622 case 'Y':
623 xprintf("%ld", r1->ps_syscall - r0->ps_syscall);
624 break;
625
626 case 'l':
627 xprintf("%ld", r1->ps_lread - r0->ps_lread);
628 break;
629
630 case 'm':
631 xprintf("%ld", r1->ps_lwrite - r0->ps_lwrite);
632 break;
633
634 case 'p':
635 xprintf("%ld", r1->ps_phread - r0->ps_phread);
636 break;
637
638 case 'q':
639 xprintf("%ld", r1->ps_phwrite - r0->ps_phwrite);
640 break;
641# endif /* _SEQUENT_ */
642#endif /* BSDTIMES */
643 default:
644 break;
645 }
646 xputchar('\n');
647}
648
649#if defined(BSDTIMES) || defined(_SEQUENT_)
650static void
651pdeltat(t1, t0)
652 timeval_t *t1, *t0;
653{
654 timeval_t td;
655
656 tvsub(&td, t1, t0);
657 xprintf("%ld.%03ld", td.tv_sec, td.tv_usec / 1000L);
658}
659
660static void
661tvadd(tsum, t0)
662 timeval_t *tsum, *t0;
663{
664
665 tsum->tv_sec += t0->tv_sec;
666 tsum->tv_usec += t0->tv_usec;
667 if (tsum->tv_usec >= 1000000)
668 tsum->tv_sec++, tsum->tv_usec -= 1000000;
669}
670
671void
672tvsub(tdiff, t1, t0)
673 timeval_t *tdiff, *t1, *t0;
674{
675
676 tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
677 tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
678 if (tdiff->tv_usec < 0)
679 tdiff->tv_sec--, tdiff->tv_usec += 1000000;
680}
681
682#else /* !BSDTIMES && !_SEQUENT_ */
683static void
684pdtimet(eval, bval)
685#ifndef POSIX
686 time_t eval, bval;
687
688#else /* POSIX */
689 clock_t eval, bval;
690
691#endif /* POSIX */
692{
693#ifndef POSIX
694 time_t val;
695
696#else /* POSIX */
697 clock_t val;
698
699#endif /* POSIX */
700
701#ifndef POSIX
702 val = (eval - bval) * 100 / HZ;
703#else /* POSIX */
704 val = (eval - bval) * 100 / clk_tck;
705#endif /* POSIX */
706
707 xprintf("%ld.%02ld", val / 100, val - (val / 100 * 100));
708}
709#endif /* BSDTIMES || _SEQUENT_ */