GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: bin/csh/time.c Lines: 0 120 0.0 %
Date: 2017-11-07 Branches: 0 57 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: time.c,v 1.15 2017/07/22 09:37:21 anton Exp $	*/
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/*	$NetBSD: time.c,v 1.7 1995/03/21 13:55:25 mycroft Exp $	*/
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/*-
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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. 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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#include <sys/types.h>
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#include <stdarg.h>
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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(struct timeval *, struct timeval *);
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void
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settimes(void)
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{
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    struct rusage ruch;
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    (void) clock_gettime(CLOCK_MONOTONIC, &time0);
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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(Char **v, struct command *t)
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{
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    struct timespec 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) clock_gettime(CLOCK_MONOTONIC, &timedol);
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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(Char **v, struct command *t)
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{
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    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(struct rusage *ru, struct rusage *ru2)
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{
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    timeradd(&ru->ru_utime, &ru2->ru_utime, &ru->ru_utime);
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    timeradd(&ru->ru_stime, &ru2->ru_stime, &ru->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(struct rusage *r0, struct rusage *r1, struct timespec *e,
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    struct timespec *b)
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{
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    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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    char *cp;
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    long i;
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    struct varent *vp = adrof(STRtime);
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    int     ms =
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    (e->tv_sec - b->tv_sec) * 100 + (e->tv_nsec - b->tv_nsec) / 10000000;
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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 : ((long long)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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			       (long)((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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			(long)((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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			(long)(((r1->ru_ixrss + r1->ru_isrss + r1->ru_idrss)
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			      - (r0->ru_ixrss + r0->ru_idrss + r0->ru_isrss))
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			      / 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 received */
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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 received */
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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(struct timeval *t1, struct timeval *t0)
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{
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    struct timeval td;
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    timersub(t1, t0, &td);
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    (void) fprintf(cshout, "%lld.%01ld", (long long)td.tv_sec,
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	td.tv_usec / 100000);
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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(long l)
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{
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    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(long l)			/* PWP: print mm:ss.dd, l is in sec*100 */
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{
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    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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}