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/* -*- C++ -*- */
// $Id$
ACE_INLINE void
ACE_High_Res_Timer::hrtime_to_tv (ACE_Time_Value &tv,
const ACE_hrtime_t hrt)
{
// The following are based on the units of global_scale_factor_
// being 1/microsecond. Therefore, dividing by it converts
// clock ticks to microseconds.
tv.sec ((long) (hrt / (ACE_UINT32) ACE_ONE_SECOND_IN_USECS /
global_scale_factor ()));
// Calculate usec in a manner that's compatible with ACE_U_LongLong.
// hrt = (tv.sec * ACE_ONE_SECOND_IN_USECS + tv.usec) * global_scale_factor_
// tv.usec = hrt / global_scale_factor_ - tv.sec * ACE_ONE_SECOND_IN_USECS
// That first term will be lossy, so factor out global_scale_factor_:
// tv.usec = (hrt - tv.sec * ACE_ONE_SECOND_IN_USECS * global_scale_factor_)/
// global_scale_factor
ACE_hrtime_t tmp = tv.sec ();
tmp *= ((ACE_UINT32) ACE_ONE_SECOND_IN_USECS * global_scale_factor ());
tv.usec ((long) ((hrt - tmp) / global_scale_factor ()));
}
ACE_INLINE ACE_Time_Value
ACE_High_Res_Timer::gettimeofday (const ACE_OS::ACE_HRTimer_Op op)
{
#if defined (ACE_WIN32)
// If the global_scale_factor_ == 1 and we're on a WIN32 platform,
// then a scale factor is needed by the platform gethrtime. Since
// one has not been set, just return ACE_OS::gettimeofday.
if (ACE_High_Res_Timer::global_scale_factor () == 1)
return ACE_OS::gettimeofday ();
#endif /* ACE_WIN32 */
ACE_Time_Value tv;
ACE_High_Res_Timer::hrtime_to_tv (tv,
ACE_OS::gethrtime (op));
return tv;
}
ACE_INLINE ACE_hrtime_t
ACE_High_Res_Timer::gettime (const ACE_OS::ACE_HRTimer_Op op)
{
#if defined (ACE_WIN32)
// If the global_scale_factor_ == 1 and we're on a WIN32 platform,
// then a scale factor is needed by the platform gethrtime. Since
// one has not been set, just return ACE_OS::gettimeofday.
if (ACE_High_Res_Timer::global_scale_factor () == 1)
{
ACE_Time_Value tv = ACE_OS::gettimeofday ();
// Return the time in microseconds because the global_scale_factor_
// is 1.
return tv.sec () * ACE_ONE_SECOND_IN_USECS + tv.usec ();
}
#endif /* ACE_WIN32 */
return ACE_OS::gethrtime (op);
}
ACE_INLINE
ACE_High_Res_Timer::~ACE_High_Res_Timer (void)
{
}
ACE_INLINE void
ACE_High_Res_Timer::start (const ACE_OS::ACE_HRTimer_Op op)
{
ACE_TRACE ("ACE_High_Res_Timer::start");
this->start_ = ACE_High_Res_Timer::gettime (op);
}
ACE_INLINE void
ACE_High_Res_Timer::stop (const ACE_OS::ACE_HRTimer_Op op)
{
ACE_TRACE ("ACE_High_Res_Timer::stop");
this->end_ = ACE_High_Res_Timer::gettime (op);
}
ACE_INLINE void
ACE_High_Res_Timer::start_incr (const ACE_OS::ACE_HRTimer_Op op)
{
ACE_TRACE ("ACE_High_Res_Timer::start_incr");
this->start_incr_ = ACE_High_Res_Timer::gettime (op);
}
ACE_INLINE void
ACE_High_Res_Timer::stop_incr (const ACE_OS::ACE_HRTimer_Op op)
{
ACE_TRACE ("ACE_High_Res_Timer::stop_incr");
this->total_ += ACE_High_Res_Timer::gettime (op) - this->start_incr_;
}
ACE_INLINE void
ACE_High_Res_Timer::elapsed_microseconds (ACE_hrtime_t &usecs) const
{
usecs =
(ACE_hrtime_t) ((this->end_ - this->start_) / global_scale_factor ());
}
ACE_INLINE void
ACE_High_Res_Timer::global_scale_factor (ACE_UINT32 gsf)
{
global_scale_factor_ = gsf;
}
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