/*- * Copyright (c) 1980, 1991 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char sccsid[] = "@(#)time.c 5.14 (Berkeley) 6/8/91"; #endif /* not lint */ #include #if __STDC__ # include #else # include #endif #include "csh.h" #include "extern.h" /* * C Shell - routines handling process timing and niceing */ static void pdeltat __P((struct timeval *, struct timeval *)); void settimes() { struct rusage ruch; (void) gettimeofday(&time0, NULL); (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; (void) getrusage(RUSAGE_SELF, &ru1); (void) getrusage(RUSAGE_CHILDREN, &ruch); ruadd(&ru1, &ruch); (void) gettimeofday(&timedol, NULL); prusage(&ru0, &ru1, &timedol, &time0); } /* * donice is only called when it on the line by itself or with a +- value */ void donice(v) register Char **v; { register Char *cp; int nval = 0; v++, cp = *v++; if (cp == 0) nval = 4; else if (*v == 0 && any("+-", cp[0])) nval = getn(cp); (void) setpriority(PRIO_PROCESS, 0, nval); } void ruadd(ru, ru2) register struct rusage *ru, *ru2; { 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; ru->ru_ixrss += ru2->ru_ixrss; ru->ru_idrss += ru2->ru_idrss; ru->ru_isrss += ru2->ru_isrss; ru->ru_minflt += ru2->ru_minflt; ru->ru_majflt += ru2->ru_majflt; ru->ru_nswap += ru2->ru_nswap; ru->ru_inblock += ru2->ru_inblock; ru->ru_oublock += ru2->ru_oublock; ru->ru_msgsnd += ru2->ru_msgsnd; ru->ru_msgrcv += ru2->ru_msgrcv; ru->ru_nsignals += ru2->ru_nsignals; ru->ru_nvcsw += ru2->ru_nvcsw; ru->ru_nivcsw += ru2->ru_nivcsw; } void prusage(r0, r1, e, b) register struct rusage *r0, *r1; struct timeval *e, *b; { register 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; register char *cp; register long i; register struct varent *vp = adrof(STRtime); int ms = (e->tv_sec - b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000; cp = "%Uu %Ss %E %P %X+%Dk %I+%Oio %Fpf+%Ww"; if (vp && vp->vec[0] && vp->vec[1]) cp = short2str(vp->vec[1]); for (; *cp; cp++) if (*cp != '%') xputchar(*cp); else if (cp[1]) switch (*++cp) { case 'U': /* user CPU time used */ pdeltat(&r1->ru_utime, &r0->ru_utime); break; case 'S': /* system CPU time used */ pdeltat(&r1->ru_stime, &r0->ru_stime); break; case 'E': /* elapsed (wall-clock) time */ pcsecs((long) ms); break; case 'P': /* percent time spent running */ /* check if it did not run at all */ i = (ms == 0) ? 0 : (t * 1000 / ms); xprintf("%ld.%01ld%%", i / 10, i % 10); /* nn.n% */ break; case 'W': /* number of swaps */ i = r1->ru_nswap - r0->ru_nswap; xprintf("%ld", i); break; case 'X': /* (average) shared text size */ xprintf("%ld", t == 0 ? 0L : (r1->ru_ixrss - r0->ru_ixrss) / t); break; case 'D': /* (average) unshared data size */ xprintf("%ld", t == 0 ? 0L : (r1->ru_idrss + r1->ru_isrss - (r0->ru_idrss + r0->ru_isrss)) / t); break; case 'K': /* (average) total data memory used */ xprintf("%ld", t == 0 ? 0L : ((r1->ru_ixrss + r1->ru_isrss + r1->ru_idrss) - (r0->ru_ixrss + r0->ru_idrss + r0->ru_isrss)) / t); break; case 'M': /* max. Resident Set Size */ xprintf("%ld", r1->ru_maxrss / 2L); break; case 'F': /* page faults */ xprintf("%ld", r1->ru_majflt - r0->ru_majflt); break; case 'R': /* page reclaims */ xprintf("%ld", r1->ru_minflt - r0->ru_minflt); break; case 'I': /* FS blocks in */ xprintf("%ld", r1->ru_inblock - r0->ru_inblock); break; case 'O': /* FS blocks out */ xprintf("%ld", r1->ru_oublock - r0->ru_oublock); break; case 'r': /* socket messages recieved */ xprintf("%ld", r1->ru_msgrcv - r0->ru_msgrcv); break; case 's': /* socket messages sent */ xprintf("%ld", r1->ru_msgsnd - r0->ru_msgsnd); break; case 'k': /* number of signals recieved */ xprintf("%ld", r1->ru_nsignals - r0->ru_nsignals); break; case 'w': /* num. voluntary context switches (waits) */ xprintf("%ld", r1->ru_nvcsw - r0->ru_nvcsw); break; case 'c': /* num. involuntary context switches */ xprintf("%ld", r1->ru_nivcsw - r0->ru_nivcsw); break; } xputchar('\n'); } static void pdeltat(t1, t0) struct timeval *t1, *t0; { struct timeval td; tvsub(&td, t1, t0); xprintf("%d.%01d", td.tv_sec, td.tv_usec / 100000); } void tvadd(tsum, t0) struct timeval *tsum, *t0; { 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(tdiff, t1, t0) struct timeval *tdiff, *t1, *t0; { 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; }