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/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved. The Berkeley Software License Agreement
* specifies the terms and conditions for redistribution.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "sh.h"
#include "sh.tconst.h"
void ruadd(struct rusage *ru, struct rusage *ru2);
void prusage(struct rusage *r0, struct rusage *r1, struct timeval *e,
struct timeval *b);
void pdeltat(struct timeval *t1, struct timeval *t0);
void tvadd(struct timeval *tsum, struct timeval *t0);
void tvsub(struct timeval *tdiff, struct timeval *t1, struct timeval *t0);
/*
* C Shell - routines handling process timing and niceing
*/
void
settimes(void)
{
struct rusage ruch;
#ifdef TRACE
tprintf("TRACE- settimes()\n");
#endif
(void) gettimeofday(&time0, (struct timezone *)0);
(void) getrusage(RUSAGE_SELF, &ru0);
(void) getrusage(RUSAGE_CHILDREN, &ruch);
ruadd(&ru0, &ruch);
}
/*
* dotime is only called if it is truly a builtin function and not a
* prefix to another command
*/
void
dotime(void)
{
struct timeval timedol;
struct rusage ru1, ruch;
#ifdef TRACE
tprintf("TRACE- dotime()\n");
#endif
(void) getrusage(RUSAGE_SELF, &ru1);
(void) getrusage(RUSAGE_CHILDREN, &ruch);
ruadd(&ru1, &ruch);
(void) gettimeofday(&timedol, (struct timezone *)0);
prusage(&ru0, &ru1, &timedol, &time0);
}
/*
* donice is only called when it's on the line by itself or with a +- value
*/
void
donice(tchar **v)
{
tchar *cp;
int nval;
#ifdef TRACE
tprintf("TRACE- donice()\n");
#endif
v++;
cp = *v++;
if (cp == 0) {
nval = 4;
} else if (*v == 0 && (cp[0] == '+' || cp[0] == '-')) {
nval = getn(cp);
}
(void) setpriority(PRIO_PROCESS, 0, nval);
}
void
ruadd(struct rusage *ru, struct rusage *ru2)
{
long *lp, *lp2;
int cnt;
/*
* The SunOS 4.x <sys/rusage.h> has ru_first and ru_last #defines
* as below.
* The SVR4/POSIX <sys/resource.h> does not have these defined for
* struct rusage
* The #defines below are here so that the original csh logic
* for ruadd remains clear now that there is no longer a private copy
* of the old <sys/resource.h>
*/
#define ru_first ru_ixrss
#define ru_last ru_nivcsw
#ifdef TRACE
tprintf("TRACE- ruadd()\n");
#endif
tvadd(&ru->ru_utime, &ru2->ru_utime);
tvadd(&ru->ru_stime, &ru2->ru_stime);
if (ru2->ru_maxrss > ru->ru_maxrss) {
ru->ru_maxrss = ru2->ru_maxrss;
}
cnt = &ru->ru_last - &ru->ru_first + 1;
lp = &ru->ru_first;
lp2 = &ru2->ru_first;
do {
*lp++ += *lp2++;
} while (--cnt > 0);
}
void
prusage(struct rusage *r0, struct rusage *r1, struct timeval *e,
struct timeval *b)
{
#define pgtok(p) ((p * pgsize) / 1024)
static int pgsize;
time_t t =
(r1->ru_utime.tv_sec - r0->ru_utime.tv_sec) * 100 +
(r1->ru_utime.tv_usec - r0->ru_utime.tv_usec) / 10000 +
(r1->ru_stime.tv_sec - r0->ru_stime.tv_sec) * 100 +
(r1->ru_stime.tv_usec - r0->ru_stime.tv_usec) / 10000;
tchar *cp;
int i;
struct varent *vp = adrof(S_time);
int ms =
(e->tv_sec - b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000;
#ifdef TRACE
tprintf("TRACE- prusage()\n");
#endif
if (pgsize == 0) {
pgsize = getpagesize();
}
cp = S_USAGEFORMAT; /* "%Uu %Ss %E %P %X+%Dk %I+%Oio %Fpf+%Ww" */
if (vp && vp->vec[0] && vp->vec[1]) {
cp = vp->vec[1];
}
for (; *cp; cp++) {
if (*cp != '%') {
Putchar(*cp);
} else if (cp[1]) {
switch (*++cp) {
case 'U':
pdeltat(&r1->ru_utime, &r0->ru_utime);
break;
case 'S':
pdeltat(&r1->ru_stime, &r0->ru_stime);
break;
case 'E':
psecs_int(ms / 100);
break;
case 'P':
printf("%d%%", (int)(t * 100 /
((ms ? ms : 1))));
break;
case 'W':
i = r1->ru_nswap - r0->ru_nswap;
printf("%d", i);
break;
case 'X':
printf("%d", t == 0 ? 0 :
pgtok((r1->ru_ixrss - r0->ru_ixrss) / t));
break;
case 'D':
printf("%d", t == 0 ? 0 :
pgtok((r1->ru_idrss + r1->ru_isrss-
(r0->ru_idrss + r0->ru_isrss)) / t));
break;
case 'K':
printf("%d", t == 0 ? 0 :
pgtok(((r1->ru_ixrss + r1->ru_isrss +
r1->ru_idrss) - (r0->ru_ixrss +
r0->ru_idrss + r0->ru_isrss)) / t));
break;
case 'M':
printf("%d", r1->ru_maxrss / 2);
break;
case 'F':
printf("%d", r1->ru_majflt - r0->ru_majflt);
break;
case 'R':
printf("%d", r1->ru_minflt - r0->ru_minflt);
break;
case 'I':
printf("%d", r1->ru_inblock - r0->ru_inblock);
break;
case 'O':
printf("%d", r1->ru_oublock - r0->ru_oublock);
break;
}
}
}
Putchar('\n');
#undef pgtok
}
void
pdeltat(struct timeval *t1, struct timeval *t0)
{
struct timeval td;
#ifdef TRACE
tprintf("TRACE- pdeltat()\n");
#endif
tvsub(&td, t1, t0);
/* change printf formats */
printf("%d.%01d", td.tv_sec, td.tv_usec / 100000);
}
void
tvadd(struct timeval *tsum, struct timeval *t0)
{
#ifdef TRACE
tprintf("TRACE- tvadd()\n");
#endif
tsum->tv_sec += t0->tv_sec;
tsum->tv_usec += t0->tv_usec;
if (tsum->tv_usec > 1000000) {
tsum->tv_sec++;
tsum->tv_usec -= 1000000;
}
}
void
tvsub(struct timeval *tdiff, struct timeval *t1, struct timeval *t0)
{
#ifdef TRACE
tprintf("TRACE- tvsub()\n");
#endif
tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
if (tdiff->tv_usec < 0) {
tdiff->tv_sec--;
tdiff->tv_usec += 1000000;
}
}
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