clock.c

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/* clock.c - clock file for time.h */

/* Copyright 1992-1993 Wind River Systems, Inc. */

/*
modification history
--------------------
01c,05feb93,jdi  documentation cleanup for 5.1.
01b,20sep92,smb  documentation additions
01a,25jul92,smb  written.
*/

/*  
DESCRIPTION  
  
INCLUDE FILE: time.h
     
SEE ALSO: American National Standard X3.159-1989 

NOMANUAL
*/

#include "vxWorks.h"
#include "time.h"

/******************************************************************************
*
* clock - determine the processor time in use (ANSI)
*
* This routine returns the implementation's best approximation of
* the processor time used by the program since the beginning of an
* implementation-defined era related only to the program invocation.
* To determine the time in seconds, the value returned by clock()
* should be divided by the value of the macro CLOCKS_PER_SEC.  If the
* processor time used is not available or its value cannot be
* represented, clock() returns -1.
*
* INCLUDE FILES: time.h
*
* RETURNS: ERROR (-1).
*/

clock_t clock (void)
    {
    return ((clock_t) ERROR);
    }