// $Id$

#include "ace/OS.h"
#include "Timeprobe.h"

#if !defined (__ACE_INLINE__)
#include "Timeprobe.i"
#endif /* __ACE_INLINE__ */

ACE_Timeprobe *ACE_Timeprobe::instance_ = 0;

ACE_Timeprobe &
ACE_Timeprobe::instance (void)
{
  if (instance_ == 0)
    // If this allocation fails, we're in big trouble . . .
    ACE_NEW_RETURN (instance_,
                    ACE_Timeprobe (),
                    *instance_);
  return *instance_;
}

void
ACE_Timeprobe::timeprobe (const char *id)
{
  ACE_GUARD (ACE_SYNCH_MUTEX, ace_mon, this->mutex_);
  timeprobes [current_slot_].id_ = id;
  timeprobes [current_slot_].time_ = ACE_OS::gethrtime ();
  timeprobes [current_slot_].thread_ = ACE_OS::thr_self ();

  ++current_slot_;

  ACE_ASSERT (current_slot_ < SLOTS);
}

void
ACE_Timeprobe::print_times (void) const
{
  ACE_DEBUG ((LM_DEBUG,
              "\nACE_Timeprobe; %u timeprobes were recorded:\n",
              current_slot_ > 1 ? current_slot_ - 1 : 0));

  if (current_slot_ <= 0)
  return;

  ACE_DEBUG ((LM_DEBUG, 
              "%-52.52s %8.8s %10.10s\n",
              "NAME",
              "thread",
              "usec"));
  ACE_DEBUG ((LM_DEBUG,
              "\"%-50s\" %8.8x %10.10s\n",
              timeprobes[0].id_,
              timeprobes[0].thread_,
              "START"));

  for (u_int i = 1; i < current_slot_; ++i)
    {
      ACE_hrtime_t elapsed =
        timeprobes [i].time_ - timeprobes [i-1].time_;

      ACE_DEBUG ((LM_DEBUG,
                  "\"%-50s\" %8.8x %10.3f\n",
                  timeprobes [i].id_,
                  timeprobes [i].thread_,
                  (double) (elapsed /
                            (ACE_UINT32) 1000u) /* nanosec/microsec */));
    }
#if 0
  ACE_hrtime_t elapsed2 = (timeprobes [current_slot_ - 1].time_
                           - timeprobes [0].time_);

  double total = elapsed2/1000.0; // nanoseconds/microsecond
  // print the total time
  ACE_DEBUG ((LM_DEBUG, 
              "%52.52s =========\n"
              "%46.46s total %10.3f usec\n",
              "",
              "",
              total));
#endif /* 0 */
}