319 lines
8.3 KiB
C
319 lines
8.3 KiB
C
/*-
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* Copyright (c) 1980, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: time.c,v 1.2 1994/09/24 02:54:20 davidg Exp $
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*/
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#ifndef lint
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static char sccsid[] = "@(#)time.c 8.1 (Berkeley) 5/31/93";
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#endif /* not lint */
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#include <sys/types.h>
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#if __STDC__
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# include <stdarg.h>
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#else
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# include <varargs.h>
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#endif
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#include "csh.h"
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#include "extern.h"
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/*
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* C Shell - routines handling process timing and niceing
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*/
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static void pdeltat __P((struct timeval *, struct timeval *));
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void
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settimes()
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{
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struct rusage ruch;
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(void) gettimeofday(&time0, NULL);
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(void) getrusage(RUSAGE_SELF, &ru0);
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(void) getrusage(RUSAGE_CHILDREN, &ruch);
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ruadd(&ru0, &ruch);
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}
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/*
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* dotime is only called if it is truly a builtin function and not a
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* prefix to another command
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*/
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void
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/*ARGSUSED*/
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dotime(v, t)
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Char **v;
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struct command *t;
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{
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struct timeval timedol;
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struct rusage ru1, ruch;
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(void) getrusage(RUSAGE_SELF, &ru1);
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(void) getrusage(RUSAGE_CHILDREN, &ruch);
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ruadd(&ru1, &ruch);
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(void) gettimeofday(&timedol, NULL);
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prusage(&ru0, &ru1, &timedol, &time0);
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}
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/*
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* donice is only called when it on the line by itself or with a +- value
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*/
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void
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/*ARGSUSED*/
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donice(v, t)
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Char **v;
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struct command *t;
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{
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register Char *cp;
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int nval = 0;
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v++, cp = *v++;
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if (cp == 0)
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nval = 4;
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else if (*v == 0 && any("+-", cp[0]))
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nval = getn(cp);
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(void) setpriority(PRIO_PROCESS, 0, nval);
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}
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void
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ruadd(ru, ru2)
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register struct rusage *ru, *ru2;
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{
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tvadd(&ru->ru_utime, &ru2->ru_utime);
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tvadd(&ru->ru_stime, &ru2->ru_stime);
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if (ru2->ru_maxrss > ru->ru_maxrss)
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ru->ru_maxrss = ru2->ru_maxrss;
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ru->ru_ixrss += ru2->ru_ixrss;
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ru->ru_idrss += ru2->ru_idrss;
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ru->ru_isrss += ru2->ru_isrss;
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ru->ru_minflt += ru2->ru_minflt;
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ru->ru_majflt += ru2->ru_majflt;
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ru->ru_nswap += ru2->ru_nswap;
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ru->ru_inblock += ru2->ru_inblock;
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ru->ru_oublock += ru2->ru_oublock;
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ru->ru_msgsnd += ru2->ru_msgsnd;
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ru->ru_msgrcv += ru2->ru_msgrcv;
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ru->ru_nsignals += ru2->ru_nsignals;
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ru->ru_nvcsw += ru2->ru_nvcsw;
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ru->ru_nivcsw += ru2->ru_nivcsw;
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}
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void
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prusage(r0, r1, e, b)
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register struct rusage *r0, *r1;
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struct timeval *e, *b;
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{
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register time_t t =
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(r1->ru_utime.tv_sec - r0->ru_utime.tv_sec) * 100 +
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(r1->ru_utime.tv_usec - r0->ru_utime.tv_usec) / 10000 +
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(r1->ru_stime.tv_sec - r0->ru_stime.tv_sec) * 100 +
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(r1->ru_stime.tv_usec - r0->ru_stime.tv_usec) / 10000;
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register char *cp;
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register long i;
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register struct varent *vp = adrof(STRtime);
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int ms =
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(e->tv_sec - b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000;
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cp = "%Uu %Ss %E %P %X+%Dk %I+%Oio %Fpf+%Ww";
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if (vp && vp->vec[0] && vp->vec[1])
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cp = short2str(vp->vec[1]);
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for (; *cp; cp++)
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if (*cp != '%')
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(void) fputc(*cp, cshout);
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else if (cp[1])
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switch (*++cp) {
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case 'U': /* user CPU time used */
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pdeltat(&r1->ru_utime, &r0->ru_utime);
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break;
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case 'S': /* system CPU time used */
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pdeltat(&r1->ru_stime, &r0->ru_stime);
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break;
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case 'E': /* elapsed (wall-clock) time */
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pcsecs((long) ms);
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break;
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case 'P': /* percent time spent running */
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/* check if it did not run at all */
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i = (ms == 0) ? 0 : (t * 1000 / ms);
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/* nn.n% */
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(void) fprintf(cshout, "%ld.%01ld%%", i / 10, i % 10);
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break;
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case 'W': /* number of swaps */
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i = r1->ru_nswap - r0->ru_nswap;
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(void) fprintf(cshout, "%ld", i);
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break;
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case 'X': /* (average) shared text size */
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(void) fprintf(cshout, "%ld", t == 0 ? 0L :
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(r1->ru_ixrss - r0->ru_ixrss) / t);
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break;
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case 'D': /* (average) unshared data size */
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(void) fprintf(cshout, "%ld", t == 0 ? 0L :
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(r1->ru_idrss + r1->ru_isrss -
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(r0->ru_idrss + r0->ru_isrss)) / t);
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break;
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case 'K': /* (average) total data memory used */
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(void) fprintf(cshout, "%ld", t == 0 ? 0L :
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((r1->ru_ixrss + r1->ru_isrss + r1->ru_idrss) -
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(r0->ru_ixrss + r0->ru_idrss + r0->ru_isrss)) / t);
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break;
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case 'M': /* max. Resident Set Size */
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(void) fprintf(cshout, "%ld", r1->ru_maxrss / 2L);
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break;
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case 'F': /* page faults */
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(void) fprintf(cshout, "%ld", r1->ru_majflt - r0->ru_majflt);
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break;
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case 'R': /* page reclaims */
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(void) fprintf(cshout, "%ld", r1->ru_minflt - r0->ru_minflt);
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break;
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case 'I': /* FS blocks in */
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(void) fprintf(cshout, "%ld", r1->ru_inblock - r0->ru_inblock);
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break;
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case 'O': /* FS blocks out */
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(void) fprintf(cshout, "%ld", r1->ru_oublock - r0->ru_oublock);
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break;
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case 'r': /* socket messages recieved */
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(void) fprintf(cshout, "%ld", r1->ru_msgrcv - r0->ru_msgrcv);
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break;
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case 's': /* socket messages sent */
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(void) fprintf(cshout, "%ld", r1->ru_msgsnd - r0->ru_msgsnd);
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break;
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case 'k': /* number of signals recieved */
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(void) fprintf(cshout, "%ld", r1->ru_nsignals-r0->ru_nsignals);
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break;
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case 'w': /* num. voluntary context switches (waits) */
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(void) fprintf(cshout, "%ld", r1->ru_nvcsw - r0->ru_nvcsw);
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break;
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case 'c': /* num. involuntary context switches */
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(void) fprintf(cshout, "%ld", r1->ru_nivcsw - r0->ru_nivcsw);
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break;
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}
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(void) fputc('\n', cshout);
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}
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static void
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pdeltat(t1, t0)
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struct timeval *t1, *t0;
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{
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struct timeval td;
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tvsub(&td, t1, t0);
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(void) fprintf(cshout, "%d.%01d", td.tv_sec, td.tv_usec / 100000);
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}
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void
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tvadd(tsum, t0)
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struct timeval *tsum, *t0;
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{
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tsum->tv_sec += t0->tv_sec;
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tsum->tv_usec += t0->tv_usec;
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if (tsum->tv_usec >= 1000000)
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tsum->tv_sec++, tsum->tv_usec -= 1000000;
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}
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void
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tvsub(tdiff, t1, t0)
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struct timeval *tdiff, *t1, *t0;
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{
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tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
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tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
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if (tdiff->tv_usec < 0)
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tdiff->tv_sec--, tdiff->tv_usec += 1000000;
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}
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#define P2DIG(i) (void) fprintf(cshout, "%d%d", (i) / 10, (i) % 10)
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void
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psecs(l)
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long l;
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{
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register int i;
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i = l / 3600;
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if (i) {
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(void) fprintf(cshout, "%d:", i);
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i = l % 3600;
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P2DIG(i / 60);
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goto minsec;
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}
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i = l;
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(void) fprintf(cshout, "%d", i / 60);
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minsec:
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i %= 60;
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(void) fputc(':', cshout);
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P2DIG(i);
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}
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void
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pcsecs(l) /* PWP: print mm:ss.dd, l is in sec*100 */
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long l;
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{
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register int i;
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i = l / 360000;
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if (i) {
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(void) fprintf(cshout, "%d:", i);
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i = (l % 360000) / 100;
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P2DIG(i / 60);
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goto minsec;
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}
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i = l / 100;
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(void) fprintf(cshout, "%d", i / 60);
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minsec:
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i %= 60;
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(void) fputc(':', cshout);
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P2DIG(i);
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(void) fputc('.', cshout);
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P2DIG((int) (l % 100));
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}
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