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/* $Id$ */

#include "Timer.h"
#include "Task_Client.h"

MT_Cubit_Timer::MT_Cubit_Timer (Task_State *ts)
#if defined (CHORUS)
  :pstartTime_ (0),
   pstopTime_ (0),
   ts_ (ts)
#else
     :ts_ (ts)
#endif
{
}

void
MT_Cubit_Timer::start (void)
{
#if defined (CHORUS)
  this->pstartTime_ = pccTime1Get();
#else /* CHORUS */
  this->timer_.start ();
#endif /* !CHORUS */
}

void
MT_Cubit_Timer::stop (void)
{
#if defined (CHORUS)
          pstopTime = pccTime1Get ();
#else /* CHORUS */
          // if CHORUS is not defined just use plain timer_.stop ().
          this->timer_.stop ();
          this->timer_.elapsed_time (this->delta_);
#endif /* !CHORUS */
}

ACE_timer_t
MT_Cubit_Timer::get_elapsed (void)
{
  ACE_timer_t real_time;
#if defined (ACE_LACKS_FLOATING_POINT)
#   if defined (CHORUS)
  real_time = (this->pstopTime_ - this->pstartTime_) / this->ts_->granularity_;
#   else /* CHORUS */
  // Store the time in usecs.
  real_time = (this->delta_.sec () * ACE_ONE_SECOND_IN_USECS  +
               this->delta_.usec ()) / this->ts_->granularity_;
#endif /* !CHORUS */
#else /* !ACE_LACKS_FLOATING_POINT */
  
  // Store the time in secs.

#if defined (VXWORKS)
          // @@ David, these comments are to temporarily fix what
          // seems a bug in the ACE_Long_Long class that is used to
          // calc the elapsed time.  It seems that subtraction of two
          // ACE_Long_Long are not done correctly when the least
          // significant value has wrapped around.  For example to
          // subtract these values: 00ff1001:00000001 minus
          // 00ff1000:ffffffff would give a huge number, instead of
          // giving 2.

          // This is only occuring in VxWorks.
          // I'll leave these here to debug it later.
          double tmp = (double)delta_t.sec ();
          double tmp2 = (double)delta_t.usec ();
          if (tmp > 100000)
            {
              tmp = 0.0;
              tmp2 = 2000.0;
              ACE_DEBUG (LM_DEBUG, "tmp > 100000!, delta_t.usec ()=%ld\n",
                         delta_t.usec ());
            }

          real_time = tmp + tmp2 / (double)ACE_ONE_SECOND_IN_USECS;
#else
          real_time = ((double) this->delta_.sec () +
                       (double) this->delta_.usec () / (double) ACE_ONE_SECOND_IN_USECS);
#endif /* VXWORKS */

          real_time /= this->ts_->granularity_;
#endif /* !ACE_LACKS_FLOATING_POINT */

          return real_time;
}