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90 lines
1.6 KiB
C
90 lines
1.6 KiB
C
/*
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* times() - POSIX 1003.1b 4.5.2 - Get Process Times
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*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.OARcorp.com/rtems/license.html.
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*
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* $Id$
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems.h>
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#include <sys/times.h>
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#include <time.h>
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#include <sys/time.h>
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#include <errno.h>
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#include <assert.h>
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clock_t _times(
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struct tms *ptms
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)
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{
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rtems_interval ticks;
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if ( !ptms ) {
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errno = EFAULT;
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return -1;
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}
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/*
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* This call does not depend on TOD being initialized and can't fail.
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*/
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(void) rtems_clock_get( RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &ticks );
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/*
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* RTEMS technically has no notion of system versus user time
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* since there is no separation of OS from application tasks.
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* But we can at least make a distinction between the number
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* of ticks since boot and the number of ticks executed by this
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* this thread.
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*/
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ptms->tms_utime = _Thread_Executing->ticks_executed;
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ptms->tms_stime = ticks;
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ptms->tms_cutime = 0;
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ptms->tms_cstime = 0;
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return ticks;
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}
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/*
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* times()
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*
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* times() system call wrapper for _times() above.
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*/
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clock_t times(
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struct tms *ptms
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)
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{
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return _times( ptms );
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}
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/*
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* _times_r
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*
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* This is the Newlib dependent reentrant version of times().
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*/
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#if defined(RTEMS_NEWLIB)
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#include <reent.h>
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clock_t _times_r(
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struct _reent *ptr,
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struct tms *ptms
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)
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{
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return _times( ptms );
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}
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#endif
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