4.3BSD - /usr/src/usr.lib/libU77/etime_.c

   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:  *	@(#)etime_.c	5.1	6/7/85
   7:  */
   8: 
   9: /*
  10:  * Return the elapsed execution time for this process.
  11:  *
  12:  * calling sequence:
  13:  * 	real time(2)
  14:  * 	call etime (time)
  15:  * where:
  16:  * 	the 2 element array, time, will receive the user and system
  17:  * 	elapsed time since the start of execution.
  18:  *
  19:  *	This routine can be called as function, and returns the sum of
  20:  *	user and system times. The time array argument must always be given.
  21:  *
  22:  *	The resolution for all timing is 1/60 second.
  23:  */
  24: 
  25: #include <sys/types.h>
  26: #include <sys/times.h>
  27: 
  28: struct tb { float usrtime; float systime; };
  29: 
  30: float
  31: etime_(et) struct tb *et;
  32: {   struct tms clock;
  33: 
  34:     times(&clock);
  35:     et->usrtime = (float) clock.tms_utime / 60.0;
  36:     et->systime = (float) clock.tms_stime / 60.0;
  37:     return(et->usrtime + et->systime);
  38: }

Defined functions

Defined struct's