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author | William R. Otte <wotte@dre.vanderbilt.edu> | 2008-03-04 13:56:48 +0000 |
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committer | William R. Otte <wotte@dre.vanderbilt.edu> | 2008-03-04 13:56:48 +0000 |
commit | c4078c377d74290ebe4e66da0b4975da91732376 (patch) | |
tree | 1816ef391e42a07929304908ac0e21f4c2f6cb7b /ACE/tests/High_Res_Timer_Test.cpp | |
parent | 700d1c1a6be348c6c70a2085e559baeb8f4a62ea (diff) | |
download | ATCD-c4078c377d74290ebe4e66da0b4975da91732376.tar.gz |
swap in externals for ACE and TAO
Diffstat (limited to 'ACE/tests/High_Res_Timer_Test.cpp')
-rw-r--r-- | ACE/tests/High_Res_Timer_Test.cpp | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/ACE/tests/High_Res_Timer_Test.cpp b/ACE/tests/High_Res_Timer_Test.cpp deleted file mode 100644 index 5bfcb7ca573..00000000000 --- a/ACE/tests/High_Res_Timer_Test.cpp +++ /dev/null @@ -1,187 +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, "$Id$") - -static -u_int -check (const time_t interval, const time_t measured) -{ - time_t const threshold = 25 /* percent */; - - time_t const difference = - interval > measured ? interval - measured : measured - interval; - - time_t const percentage_difference = difference * 100 / interval; - - if (percentage_difference < threshold) - return 0; - else - ACE_ERROR_RETURN ((LM_ERROR, - ACE_TEXT ("The measured time of %Q differs from ") - ACE_TEXT ("the interval of %Q by %Q 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) -{ - ACE_hrtime_t const threshold = 8 /* promille */; - - microinterval *= 1000u; - ACE_hrtime_t const difference = (microinterval > nanointerval - ? (microinterval - nanointerval) - : (nanointerval - microinterval)); - if (nanointerval == 0) - nanointerval = 1; // Prevent divide-by-zero - ACE_hrtime_t const promille_difference = - difference * 1000 / nanointerval; - - if ((promille_difference < threshold) || (difference < 1500)) - return 0; - else - ACE_ERROR_RETURN ((LM_ERROR, - ACE_TEXT ("The microseconds * 1000 of %Q ") - ACE_TEXT ("differs from the nanoseconds of %Q ") - ACE_TEXT (" by %Q promille\n"), - microinterval, - 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 const 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; - - //FUZZ: disable check_for_lack_ACE_OS - ACE_Get_Opt getopt (argc, argv, ACE_TEXT ("i:")); - for (int c; (c = getopt ()) != -1; ) - { - //FUZZ: enable check_for_lack_ACE_OS - - 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. - static u_int const 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); - time_t const interval_usec = - interval.sec () * ACE_ONE_SECOND_IN_USECS + interval.usec (); - time_t const measured_usec = - measured.sec () * ACE_ONE_SECOND_IN_USECS + measured.usec (); - - ACE_DEBUG ((LM_DEBUG, - ACE_TEXT ("interval: %: usec, measured: %: usec %s\n"), - interval_usec, - measured_usec, - (intervals[i] <= TIMER_RESOLUTION - ? ACE_TEXT (" (interval and measured may differ)") - : ACE_TEXT ("")))); - - if (intervals[i] > TIMER_RESOLUTION) - { - errors += check (interval.sec () * ACE_ONE_SECOND_IN_USECS - + interval.usec (), - measured.sec () * ACE_ONE_SECOND_IN_USECS - + 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: %:, ACE_HR nsec: %Q\n"), - measured_usec, - nanoseconds)); - // This gives problems -> should be fixed - errors += check_micro_nano (measured.sec () * ACE_ONE_SECOND_IN_USECS - + measured.usec (), - nanoseconds); - ACE_DEBUG ((LM_DEBUG, - ACE_TEXT ("ACE_High_Res_Timer usec: %Q, nsec: %Q\n"), - microseconds, - 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; -} |