diff options
Diffstat (limited to 'usr/src/cmd/csh/sh.time.c')
| -rw-r--r-- | usr/src/cmd/csh/sh.time.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/usr/src/cmd/csh/sh.time.c b/usr/src/cmd/csh/sh.time.c new file mode 100644 index 0000000000..0564f29e07 --- /dev/null +++ b/usr/src/cmd/csh/sh.time.c @@ -0,0 +1,262 @@ +/* + * Copyright 2004 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() +{ + 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() +{ + 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; + } +} |