diff options
Diffstat (limited to 'ace/High_Res_Timer.cpp')
| -rw-r--r-- | ace/High_Res_Timer.cpp | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/ace/High_Res_Timer.cpp b/ace/High_Res_Timer.cpp deleted file mode 100644 index 6fd84db99ae..00000000000 --- a/ace/High_Res_Timer.cpp +++ /dev/null @@ -1,254 +0,0 @@ -// $Id$ - -#define ACE_BUILD_DLL -#include "ace/High_Res_Timer.h" - -#if !defined (__ACE_INLINE__) -#include "ace/High_Res_Timer.i" -#endif /* __ACE_INLINE__ */ - -ACE_ALLOC_HOOK_DEFINE(ACE_High_Res_Timer) - -// For Intel platforms, a scale factor is required for -// ACE_OS::gethrtime. We'll still set this to one to prevent division -// by zero errors. -#if defined (ACE_WIN32) && ! defined (ACE_HAS_WINCE) - -u_long -ACE_High_Res_Timer::get_registry_scale_factor (void) -{ - HKEY hk; - unsigned long speed; - unsigned long speed_size = sizeof speed; - unsigned long speed_type = REG_DWORD; - - long rc = ::RegOpenKeyEx (HKEY_LOCAL_MACHINE, - __TEXT ("HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0"), - NULL, - KEY_READ, - &hk); - - if (rc != ERROR_SUCCESS) - // Couldn't find key - return 1; - - rc = ::RegQueryValueEx (hk, - __TEXT ("~MHz"), - 0, - &speed_type, - (LPBYTE) &speed, - &speed_size); - - ::RegCloseKey (hk); - - if (rc != ERROR_SUCCESS) - // Couldn't get the value - return 1; - - return speed; -} - -/* static */ -ACE_UINT32 ACE_High_Res_Timer::global_scale_factor_ = ACE_High_Res_Timer::get_registry_scale_factor (); - -#elif defined (ACE_HAS_HI_RES_TIMER) || defined (ACE_HAS_AIX_HI_RES_TIMER) || \ - defined (ACE_HAS_CLOCK_GETTIME) || defined (ACE_PSOS) || \ - defined (CHORUS) || defined (linux) - // A scale_factor of 1000 converts nanosecond ticks to microseconds. - // That is, on these platforms, 1 tick == 1 nanosecond. - /* static */ - ACE_UINT32 ACE_High_Res_Timer::global_scale_factor_ = 1000u; -#else - // Don't convert at all, by default. Application code may have to - // override this using a call to global_scale_factor (). - ACE_UINT32 ACE_High_Res_Timer::global_scale_factor_ = 1; -#endif /* ACE_WIN32 */ - -void -ACE_High_Res_Timer::dump (void) const -{ - ACE_TRACE ("ACE_High_Res_Timer::dump"); - - ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this)); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("\nglobal_scale_factor_: %u\n"), - global_scale_factor_)); -#if defined (ACE_LACKS_LONGLONG_T) - ACE_DEBUG ((LM_DEBUG, - ASYS_TEXT ("start_.hi (): %u; start_.lo (): %u;\n" - "end_.hi (): %u; end_.lo (): %u;\n" - "total_.hi (): %u; total_.lo (): %u;\n" - "start_incr_.hi () %u; start_incr_.lo (): %u\n"), - start_.hi (), start_.lo (), - end_.hi (), end_.lo (), - total_.hi (), total_.lo (), - start_incr_.hi (), start_incr_.lo ())); -#else /* ! ACE_LACKS_LONGLONG_T */ - ACE_DEBUG ((LM_DEBUG, - ASYS_TEXT ("start_: %u; end_: %u; total_: %u; start_incr_: %u\n"), - start_, end_, total_, start_incr_)); -#endif /* ! ACE_LACKS_LONGLONG_T */ - ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP)); -} - -void -ACE_High_Res_Timer::reset (void) -{ - ACE_TRACE ("ACE_High_Res_Timer::reset"); - - start_ = 0; - end_ = 0; - total_ = 0; - start_incr_ = 0; -} - -void -ACE_High_Res_Timer::elapsed_time (ACE_Time_Value &tv) -{ - hrtime_to_tv (tv, end_ - start_); -} - -#if defined (ACE_HAS_POSIX_TIME) -void -ACE_High_Res_Timer::elapsed_time (struct timespec &elapsed_time) -{ - // See elapsed_time (ACE_hrtime_t &nanoseconds) implementation below; - // this implementation is based on that. - - // Just grab the nanoseconds. That is, leave off all values above - // microsecond. This equation is right! Don't mess with me! (It - // first strips off everything but the portion less than 1 usec. - // Then it converts that to nanoseconds by dividing by the scale - // factor to convert to usec, and multiplying by 1000.) The cast - // avoids a MSVC 4.1 compiler warning about narrowing. - u_long nseconds = (u_long) ((this->end_ - this->start_) % - global_scale_factor_ * 1000u / - global_scale_factor_); - - // Get just the microseconds (dropping any left over nanoseconds). - ACE_UINT32 useconds = (ACE_UINT32) ((this->end_ - this->start_) / global_scale_factor_); - -#if ! defined(ACE_HAS_BROKEN_TIMESPEC_MEMBERS) - elapsed_time.tv_sec = (time_t) (useconds / ACE_ONE_SECOND_IN_USECS); - // Transforms one second in microseconds into nanoseconds. - elapsed_time.tv_nsec = (time_t) ((useconds % ACE_ONE_SECOND_IN_USECS) * 1000u + nseconds); -#else - elapsed_time.ts_sec = (time_t) (useconds / ACE_ONE_SECOND_IN_USECS); - // Transforms one second in microseconds into nanoseconds. - elapsed_time.ts_nsec = (time_t) ((useconds % ACE_ONE_SECOND_IN_USECS) * 1000u + nseconds); -#endif /* ACE_HAS_BROKEN_TIMESPEC_MEMBERS */ -} -#endif /* ACE_HAS_POSIX_TIME */ - -void -ACE_High_Res_Timer::elapsed_time_incr (ACE_Time_Value &tv) -{ - hrtime_to_tv (tv, total_); -} - -// The whole point is to get nanoseconds. However, our scale_factor -// gives us microseconds. We could use floating points to get the -// nanosecond precision if some compilers didn't barf on 64-bit -// divisions with doubles. So, we just extract out the nanoseconds -// first and then add them to the standard microsecond calculation. -void -ACE_High_Res_Timer::elapsed_time (ACE_hrtime_t &nanoseconds) -{ - // Just grab the nanoseconds. That is, leave off all values above - // microsecond. This equation is right! Don't mess with me! - // (It first strips off everything but the portion less than 1 usec. - // Then it converts that to nanoseconds by dividing by the scale - // factor to convert to usec, and multiplying by 1000.) - // The cast avoids a MSVC 4.1 compiler warning about narrowing. - u_long nseconds = (u_long) ((this->end_ - this->start_) % - global_scale_factor_ * 1000u / - global_scale_factor_); - - // Get just the microseconds (dropping any left over nanoseconds). - ACE_UINT32 useconds = (ACE_UINT32) ((this->end_ - this->start_) / global_scale_factor_); - - // Total nanoseconds in a single 64-bit value. - nanoseconds = useconds * 1000u + nseconds; -} - -#if !defined (ACE_HAS_WINCE) -void -ACE_High_Res_Timer::print_ave (const char *str, const int count, ACE_HANDLE handle) -{ - ACE_TRACE ("ACE_High_Res_Timer::print_ave"); - - // Get the total number of nanoseconds elapsed. - ACE_hrtime_t total_nanoseconds; - this->elapsed_time (total_nanoseconds); - - // Separate to seconds and nanoseconds. - u_long total_secs = (u_long) (total_nanoseconds / (ACE_UINT32) ACE_ONE_SECOND_IN_NSECS); - ACE_UINT32 extra_nsecs = (ACE_UINT32) (total_nanoseconds % (ACE_UINT32) ACE_ONE_SECOND_IN_NSECS); - - char buf[100]; - if (count > 1) - { - ACE_hrtime_t avg_nsecs = total_nanoseconds / (ACE_UINT32) count; - ACE_OS::sprintf (buf, " count = %d, total (secs %lu, usecs %u), avg usecs = %lu\n", - count, total_secs, (extra_nsecs + 500u) / 1000u, - (u_long) ((avg_nsecs + 500u) / 1000u)); - } - else - ACE_OS::sprintf (buf, " total %3lu.%06lu secs\n", - total_secs, (extra_nsecs + 500u) / 1000u); - - ACE_OS::write (handle, str, ACE_OS::strlen (str)); - ACE_OS::write (handle, buf, ACE_OS::strlen (buf)); -} - -void -ACE_High_Res_Timer::print_total (const char *str, const int count, ACE_HANDLE handle) -{ - ACE_TRACE ("ACE_High_Res_Timer::print_total"); - - // Get the total number of nanoseconds elapsed. - ACE_hrtime_t total_nanoseconds; - this->elapsed_time (total_nanoseconds); - - // Separate to seconds and nanoseconds. - u_long total_secs = (u_long) (total_nanoseconds / (ACE_UINT32) ACE_ONE_SECOND_IN_NSECS); - ACE_UINT32 extra_nsecs = (ACE_UINT32) (total_nanoseconds % (ACE_UINT32) ACE_ONE_SECOND_IN_NSECS); - - char buf[100]; - if (count > 1) - { - ACE_hrtime_t avg_nsecs = this->total_ / (ACE_UINT32) count; - ACE_OS::sprintf (buf, " count = %d, total (secs %lu, usecs %u), avg usecs = %lu\n", - count, total_secs, (extra_nsecs + 500u) / 1000u, - (u_long) ((avg_nsecs + 500u) / 1000u)); - } - else - ACE_OS::sprintf (buf, " total %3lu.%06u secs\n", - total_secs, (extra_nsecs + 500u) / 1000u); - - ACE_OS::write (handle, str, ACE_OS::strlen (str)); - ACE_OS::write (handle, buf, ACE_OS::strlen (buf)); -} -#endif /* !ACE_HAS_WINCE */ - -int -ACE_High_Res_Timer::get_env_global_scale_factor (const char *env) -{ -#if !defined (ACE_HAS_WINCE) - if (env != 0) - { - const char *env_value = ACE_OS::getenv (env); - if (env_value != 0) - { - int value = ACE_OS::atoi (env_value); - if (value > 0) - { - ACE_High_Res_Timer::global_scale_factor (value); - return 0; - } - } - } -#else - ACE_UNUSED_ARG (env); -#endif /* !ACE_HAS_WINCE */ - return -1; -} |