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authorWilliam R. Otte <wotte@dre.vanderbilt.edu>2008-03-04 13:56:48 +0000
committerWilliam R. Otte <wotte@dre.vanderbilt.edu>2008-03-04 13:56:48 +0000
commitc4078c377d74290ebe4e66da0b4975da91732376 (patch)
tree1816ef391e42a07929304908ac0e21f4c2f6cb7b /ACE/tests/High_Res_Timer_Test.cpp
parent700d1c1a6be348c6c70a2085e559baeb8f4a62ea (diff)
downloadATCD-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.cpp187
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;
-}