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Annotation of 43BSDReno/lib/libcompat/4.1/vtimes.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1980 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  */
                      6: 
                      7: #if defined(LIBC_SCCS) && !defined(lint)
                      8: static char sccsid[] = "@(#)vtimes.c   5.2 (Berkeley) 3/9/86";
                      9: #endif LIBC_SCCS and not lint
                     10: 
                     11: #include <sys/time.h>
                     12: #include <sys/resource.h>
                     13: 
                     14: /*
                     15:  * Backwards compatible vtimes.
                     16:  */
                     17: struct vtimes {
                     18:        int     vm_utime;               /* user time (60'ths) */
                     19:        int     vm_stime;               /* system time (60'ths) */
                     20:        /* divide next two by utime+stime to get averages */
                     21:        unsigned vm_idsrss;             /* integral of d+s rss */
                     22:        unsigned vm_ixrss;              /* integral of text rss */
                     23:        int     vm_maxrss;              /* maximum rss */
                     24:        int     vm_majflt;              /* major page faults */
                     25:        int     vm_minflt;              /* minor page faults */
                     26:        int     vm_nswap;               /* number of swaps */
                     27:        int     vm_inblk;               /* block reads */
                     28:        int     vm_oublk;               /* block writes */
                     29: };
                     30: 
                     31: vtimes(par, chi)
                     32:        register struct vtimes *par, *chi;
                     33: {
                     34:        struct rusage ru;
                     35: 
                     36:        if (par) {
                     37:                if (getrusage(RUSAGE_SELF, &ru) < 0)
                     38:                        return (-1);
                     39:                getvtimes(&ru, par);
                     40:        }
                     41:        if (chi) {
                     42:                if (getrusage(RUSAGE_CHILDREN, &ru) < 0)
                     43:                        return (-1);
                     44:                getvtimes(&ru, chi);
                     45:        }
                     46:        return (0);
                     47: }
                     48: 
                     49: static
                     50: getvtimes(aru, avt)
                     51:        register struct rusage *aru;
                     52:        register struct vtimes *avt;
                     53: {
                     54: 
                     55:        avt->vm_utime = scale60(&aru->ru_utime);
                     56:        avt->vm_stime = scale60(&aru->ru_stime);
                     57:        avt->vm_idsrss = ((aru->ru_idrss+aru->ru_isrss) / 100) * 60;
                     58:        avt->vm_ixrss = aru->ru_ixrss / 100 * 60;
                     59:        avt->vm_maxrss = aru->ru_maxrss;
                     60:        avt->vm_majflt = aru->ru_majflt;
                     61:        avt->vm_minflt = aru->ru_minflt;
                     62:        avt->vm_nswap = aru->ru_nswap;
                     63:        avt->vm_inblk = aru->ru_inblock;
                     64:        avt->vm_oublk = aru->ru_oublock;
                     65: }
                     66: 
                     67: static
                     68: scale60(tvp)
                     69:        register struct timeval *tvp;
                     70: {
                     71: 
                     72:        return (tvp->tv_sec * 60 + tvp->tv_usec / 16667);
                     73: }

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