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author | Johnny Willemsen <jwillemsen@remedy.nl> | 2010-03-15 07:58:50 +0000 |
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committer | Johnny Willemsen <jwillemsen@remedy.nl> | 2010-03-15 07:58:50 +0000 |
commit | f4ae2613c87ce239858f59a186003a1af9a51b71 (patch) | |
tree | 9b8c1c973166673790471894ab504ad96b41d9eb /ACE/ace/High_Res_Timer.inl | |
parent | 7a4083a23538862fc17c025b64f45c29c29ada0c (diff) | |
download | ATCD-f4ae2613c87ce239858f59a186003a1af9a51b71.tar.gz |
Mon Mar 15 07:58:54 UTC 2010 Johnny Willemsen <jwillemsen@remedy.nl>
* ace/High_Res_Timer.cpp
* ace/High_Res_Timer.h
* ace/High_Res_Timer.inl
Use 64bit calculations to increase our precision. If you want to have the 32bit
calculations, add ACE_USE_WINDOWS_32BIT_HIGH_RES_TIMER_CALCULATIONS as define. If
the scoreboard doesn't show any platforms requiring 32bit, we will remove that code
before the next micro release goes out
Thanks to Alon Diamant <diamant dot alon at gmail dot com> for supplying the patches.
This fixes bugzilla 3703.
* ace/Timer_Queue_Adapters.cpp
* ace/Timer_Queue_Adapters.h
* ace/Timer_Queue_Adapters.inl
Make it possible to use a customer event handler in ACE_Thread_Timer_Queue_Adapter.
Thanks to Alon Diamant <diamant dot alon at gmail dot com> for supplying the patches.
This fixes bugzilla 3614
* tests/tests.mpc:
* tests/Thread_Timer_Queue_Adapter_Test.cpp:
New test for testing custom event handlers in ACE_Thread_Timer_Queue_Adapter.
Thanks to Alon Diamant <diamant dot alon at gmail dot com> for creating
this new test
Diffstat (limited to 'ACE/ace/High_Res_Timer.inl')
-rw-r--r-- | ACE/ace/High_Res_Timer.inl | 65 |
1 files changed, 52 insertions, 13 deletions
diff --git a/ACE/ace/High_Res_Timer.inl b/ACE/ace/High_Res_Timer.inl index 56df6e1f04b..a568d971eda 100644 --- a/ACE/ace/High_Res_Timer.inl +++ b/ACE/ace/High_Res_Timer.inl @@ -21,21 +21,37 @@ 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_HR_SCALE_CONVERSION / +#if defined (ACE_USE_WINDOWS_32BIT_HIGH_RES_TIMER_CALCULATIONS) + + // 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_HR_SCALE_CONVERSION / 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_HR_SCALE_CONVERSION * global_scale_factor ()); - tv.usec ((long) ((hrt - tmp) / 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_HR_SCALE_CONVERSION * global_scale_factor ()); + tv.usec ((long) ((hrt - tmp) / global_scale_factor ())); +#else + + // This a higher-precision version, specific for Windows systems + // 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 / global_scale_factor () )); + + // Calculate usec + ACE_hrtime_t tmp = tv.sec (); + tmp *= global_scale_factor (); + tv.usec ((long) ((hrt - tmp) * ACE_HR_SCALE_CONVERSION / global_scale_factor ())); + +#endif } @@ -139,15 +155,38 @@ ACE_High_Res_Timer::stop_incr (const ACE_OS::ACE_HRTimer_Op op) ACE_INLINE void ACE_High_Res_Timer::elapsed_microseconds (ACE_hrtime_t &usecs) const { + +#if defined (ACE_USE_WINDOWS_32BIT_HIGH_RES_TIMER_CALCULATIONS) + ACE_hrtime_t elapsed = ACE_High_Res_Timer::elapsed_hrtime (this->end_, this->start_); usecs = (ACE_hrtime_t) (elapsed / global_scale_factor ()); + +#else + + usecs = (ACE_High_Res_Timer::elapsed_hrtime (this->end_, this->start_) * + ACE_HR_SCALE_CONVERSION) / + global_scale_factor (); + +#endif } +#if defined (ACE_USE_WINDOWS_32BIT_HIGH_RES_TIMER_CALCULATIONS) + ACE_INLINE void ACE_High_Res_Timer::global_scale_factor (ACE_UINT32 gsf) { global_scale_factor_ = gsf; } +#else + +ACE_INLINE void +ACE_High_Res_Timer::global_scale_factor (ACE_UINT64 gsf) +{ + global_scale_factor_ = gsf; +} + +#endif + ACE_END_VERSIONED_NAMESPACE_DECL |