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Diffstat (limited to 'tests/High_Res_Timer_Test.cpp')
| -rw-r--r-- | tests/High_Res_Timer_Test.cpp | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/tests/High_Res_Timer_Test.cpp b/tests/High_Res_Timer_Test.cpp deleted file mode 100644 index 5398157d8d3..00000000000 --- a/tests/High_Res_Timer_Test.cpp +++ /dev/null @@ -1,176 +0,0 @@ -// $Id$ -//============================================================================ -// -// = LIBRARY -// tests -// -// = FILENAME -// High_Res_Timer_Test.cpp -// -// = DESCRIPTION -// Simple test of ACE_High_Res_Timer. -// -// = AUTHOR -// David L. Levine <levine@cs.wustl.edu> -// -//============================================================================ - -#include "test_config.h" -#include "ace/Log_Msg.h" -#include "ace/High_Res_Timer.h" -#include "ace/Sched_Params.h" -#include "ace/Get_Opt.h" -#include "ace/OS_NS_unistd.h" - -ACE_RCSID(tests, High_Res_Timer_Test, "High_Res_Timer_Test.cpp,v 4.6 2000/04/23 04:43:58 brunsch Exp") - -static -u_int -check (const u_int interval, const u_int measured) -{ - const u_int threshold = 25 /* percent */; - - const u_int difference = - interval > measured ? interval - measured : measured - interval; - - const u_int percentage_difference = difference * 100 / interval; - - if (percentage_difference < threshold) - return 0; - else - ACE_ERROR_RETURN ((LM_ERROR, - ACE_TEXT ("The measured time of %u differs from ") - ACE_TEXT ("the interval of %u by %u percent.\n"), - measured, - interval, - percentage_difference), - 1); -} - -// Does a sanity check of the microseconds vs nanoseconds. They're supposed -// to represent the same interval. -static u_int -check_micro_nano (ACE_hrtime_t microinterval, ACE_hrtime_t nanointerval) -{ - const u_int threshold = 8 /* promille */; - - microinterval *= 1000u; - ACE_hrtime_t hr_difference = (microinterval > nanointerval ? - microinterval - nanointerval : - nanointerval - microinterval ); - const u_int difference = ACE_HRTIME_CONVERSION (hr_difference); - if (nanointerval == 0) - nanointerval = 1; // Prevent divide-by-zero - const u_int promille_difference = difference * 1000 / - ACE_HRTIME_CONVERSION(nanointerval); - - if ((promille_difference < threshold) || (difference < 1500)) - return 0; - else - ACE_ERROR_RETURN ((LM_ERROR, - ACE_TEXT ("The microseconds * 1000 of %u differs from ") - ACE_TEXT ("the nanoseconds of %u by %u promille\n"), - ACE_HRTIME_CONVERSION (microinterval), - ACE_HRTIME_CONVERSION (nanointerval), - promille_difference), - 1); -} - -static -ACE_Time_Value -time_interval (const ACE_Time_Value &interval, - ACE_hrtime_t& nanoseconds, - ACE_hrtime_t& microseconds) -{ - ACE_High_Res_Timer timer; - - timer.start (); - ACE_OS::sleep (interval); - timer.stop (); - - ACE_Time_Value measured; - timer.elapsed_time (measured); - timer.elapsed_time (nanoseconds); - timer.elapsed_microseconds (microseconds); - return measured; -} - - -static -u_int -intervals [] = {0, 1, 10, 100, 1000, 10000, 100000, 1000000, 4000000}; /*usec*/ - -int -run_main (int argc, ACE_TCHAR *argv[]) -{ - ACE_START_TEST (ACE_TEXT ("High_Res_Timer_Test")); - - ACE_DEBUG ((LM_DEBUG, - ACE_TEXT ("The ACE_High_Res_Timer scale factor is %u ") - ACE_TEXT ("1/microsecond\n"), - ACE_High_Res_Timer::global_scale_factor ())); - - u_int errors = 0; - - u_int iterations = 1; - - ACE_Get_Opt getopt (argc, argv, ACE_TEXT ("i:")); - for (int c; (c = getopt ()) != -1; ) - switch (c) - { - case 'i': - iterations = ACE_OS::atoi (getopt.opt_arg ()); - break; - } - - // We don't check for errors if the interval is shorter than this - // value because the OS has a finite resolution anyway. - const u_int TIMER_RESOLUTION = 10000; - - for (u_int i = 0; i < sizeof intervals / sizeof (u_int); ++i) - { - for (u_int j = 0; j < iterations; ++j) - { - const ACE_Time_Value interval (0, intervals[i]); - ACE_hrtime_t nanoseconds; - ACE_hrtime_t microseconds; - const ACE_Time_Value measured = time_interval (interval, - nanoseconds, - microseconds); - ACE_DEBUG ((LM_DEBUG, - ACE_TEXT ("interval: %u usec, measured: %u usec%s\n"), - interval.sec () * 1000000 + interval.usec (), - measured.sec () * 1000000 + measured.usec (), - intervals[i] <= TIMER_RESOLUTION ? - ACE_TEXT (" (interval and measured may differ)") : - ACE_TEXT (""))); - - if (intervals[i] > TIMER_RESOLUTION) - { - errors += check (interval.sec () * 1000000 + interval.usec (), - measured.sec () * 1000000 + measured.usec ()); - // Don't check for error for intervals below 10 msec. - } - // Check the ACE_Timer_Value-calculated microseconds against - // the ACE_High_Res_Timer-calculated nanoseconds. - ACE_DEBUG ((LM_DEBUG, - ACE_TEXT ("ACE_Time_Value usec: %u, ACE_HR nsec: %u\n"), - measured.sec () * 1000000 + measured.usec (), - ACE_HRTIME_CONVERSION (nanoseconds))); - // This gives problems -> should be fixed - errors += check_micro_nano (measured.sec () * 1000000 + - measured.usec (), - nanoseconds); - ACE_DEBUG ((LM_DEBUG, - ACE_TEXT ("ACE_High_Res_Timer usec: %u, nsec: %u\n"), - ACE_HRTIME_CONVERSION (microseconds), - ACE_HRTIME_CONVERSION (nanoseconds))); - // Now check the ACE_High_Res_Timer-calculated values against - // each other. - errors += check_micro_nano (microseconds, nanoseconds); - } - } - - ACE_END_TEST; - return errors == 0 ? 0 : 1; -} |