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4921 Serge 1 
/* NetWare can not use this implementation of clock, since it does not
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   have times or any similar function.  It provides its own version of
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   clock in clib.nlm.  If we can not use clib.nlm, then we must write
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   clock in sys/netware.  */
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#ifdef CLOCK_PROVIDED
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int _dummy_clock = 1;
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#else
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/*
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 * clock.c
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 * Original Author:	G. Haley
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 *
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 * Determines the processor time used by the program since invocation. The time
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 * in seconds is the value returned divided by the value of the macro CLK_TCK.
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 * If the processor time used is not available, (clock_t) -1 is returned.
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 */
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/*
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FUNCTION
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<>---cumulative processor time
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INDEX
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	clock
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ANSI_SYNOPSIS
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	#include
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	clock_t clock(void);
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TRAD_SYNOPSIS
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	#include
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	clock_t clock();
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DESCRIPTION
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Calculates the best available approximation of the cumulative amount
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of time used by your program since it started.  To convert the result
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into seconds, divide by the macro <>.
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RETURNS
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The amount of processor time used so far by your program, in units
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defined by the machine-dependent macro <>.  If no
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measurement is available, the result is (clock_t)<<-1>>.
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PORTABILITY
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ANSI C requires <> and <>.
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Supporting OS subroutine required: <>.
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*/
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#include
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#include
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#include
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clock_t
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clock ()
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{
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  struct tms tim_s;
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  clock_t res;
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6099 serge 62 
  if ((res = (clock_t) _times_r (_REENT, &tim_s)) != (clock_t) -1)
4921 Serge 63 
    res = (clock_t) (tim_s.tms_utime + tim_s.tms_stime +
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		     tim_s.tms_cutime + tim_s.tms_cstime);
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  return res;
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}
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#endif /* CLOCK_PROVIDED */