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// $Id$
// ============================================================================
//
// = LIBRARY
// tests
//
// = FILENAME
// Handle_Set_Test.cpp
//
// = DESCRIPTION
// This test illustrates the use of ACE_Handle_Set to maintain a
// set of handles. No command line arguments are needed to run
// the test.
//
// = AUTHOR
// Prashant Jain <pjain@cs.wustl.edu>
//
// ============================================================================
#include "test_config.h"
#include "ace/OS_NS_stdlib.h"
#include "ace/Profile_Timer.h"
#include "ace/Handle_Set.h"
#include "ace/Containers.h"
ACE_RCSID(tests, Handle_Set_Test, "$Id$")
static void
test_duplicates (size_t count)
{
size_t duplicates = 0;
size_t sets = 0;
size_t clears = 0;
ACE_Handle_Set handle_set;
ACE_OS::srand (ACE_OS::time (0L));
for (size_t i = 0; i < count; i++)
{
size_t handle =
static_cast<size_t> (ACE_OS::rand () % ACE_Handle_Set::MAXSIZE);
if (ACE_ODD (handle))
{
if (handle_set.is_set ((ACE_HANDLE) handle))
duplicates++;
handle_set.set_bit ((ACE_HANDLE) handle);
sets++;
}
else
{
if (handle_set.is_set ((ACE_HANDLE) handle))
duplicates--;
handle_set.clr_bit ((ACE_HANDLE) handle);
clears++;
}
}
ACE_ASSERT (count == sets + clears);
ACE_ASSERT (handle_set.num_set () + duplicates == sets);
}
// This is the vector of handles to test. These numbers are chosen to
// test for boundaries conditions. Note that if
// <ACE_DEFAULT_SELECT_REACTOR_SIZE> is less than any of these
// <HANDLE> values, the logic in <test_boundaries> will simply ignore
// these values.
#if defined (ACE_WIN64)
// The casts below are legit...
# pragma warning(push)
# pragma warning(disable : 4312)
#endif /* ACE_WIN64 */
static ACE_HANDLE handle_vector[] =
{
(ACE_HANDLE) 0,
(ACE_HANDLE) 1,
(ACE_HANDLE) 31,
(ACE_HANDLE) 32,
(ACE_HANDLE) 63,
(ACE_HANDLE) 64,
(ACE_HANDLE) 65,
(ACE_HANDLE) 127,
(ACE_HANDLE) 128,
(ACE_HANDLE) 129,
(ACE_HANDLE) 254,
(ACE_HANDLE) 255,
(ACE_HANDLE) (ACE_DEFAULT_SELECT_REACTOR_SIZE - 1),
(ACE_HANDLE) ACE_DEFAULT_SELECT_REACTOR_SIZE,
ACE_INVALID_HANDLE
};
#if defined (ACE_WIN64)
# pragma warning(pop)
#endif /* ACE_WIN64 */
static void
test_boundaries (void)
{
ACE_Handle_Set handle_set;
ACE_Unbounded_Set<ACE_HANDLE> set;
ACE_HANDLE handle;
// First test an empty set.
for (ACE_Handle_Set_Iterator i1 (handle_set);
(handle = i1 ()) != ACE_INVALID_HANDLE;
)
{
#if defined (ACE_PSOS_DIAB)
// Workaround for some compiler confusion with strings in
// assertions.
const int SET_IS_EMPTY_SO_SHOULD_NOT_SEE_THIS = 1;
ACE_ASSERT (0 == SET_IS_EMPTY_SO_SHOULD_NOT_SEE_THIS);
#else /* ! defined (ACE_PSOS_DIAB) */
ACE_ASSERT (0 ==
ACE_TEXT ("this shouldn't get called since ")
ACE_TEXT ("the set is empty!\n"));
#endif /* defined (ACE_PSOS_DIAB) */
}
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("ACE_DEFAULT_SELECT_REACTOR_SIZE %d\n"),
ACE_DEFAULT_SELECT_REACTOR_SIZE));
// Insert the vector of <ACE_HANDLE>s into the set.
#if defined (ACE_WIN64)
// The casts below are legit...
# pragma warning(push)
# pragma warning(disable : 4312)
#endif /* ACE_WIN64 */
for (int i = 0;
handle_vector[i] != ACE_INVALID_HANDLE;
i++)
{
if (handle_vector[i] < (ACE_HANDLE) ACE_DEFAULT_SELECT_REACTOR_SIZE)
{
handle_set.set_bit (handle_vector[i]);
set.insert (handle_vector[i]);
}
}
#if defined (ACE_WIN64)
# pragma warning(pop)
#endif /* ACE_WIN64 */
int count = 0;
for (ACE_Handle_Set_Iterator i2 (handle_set);
(handle = i2 ()) != ACE_INVALID_HANDLE;
)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("obtained handle %d\n"),
handle));
int done = set.remove (handle);
ACE_ASSERT (done == 0);
count++;
}
ACE_ASSERT (count == handle_set.num_set ());
}
static void
test_performance (size_t max_handles,
size_t max_iterations)
{
ACE_Handle_Set handle_set;
size_t i;
for (i = 0; i < max_handles; i++)
handle_set.set_bit ((ACE_HANDLE) i);
ACE_Profile_Timer timer;
size_t count = 0;
timer.start ();
for (i = 0; i < max_iterations; i++)
{
ACE_Handle_Set_Iterator iter (handle_set);
// Only iterate up to <handle_set.max_set ()>.
while (iter () != ACE_INVALID_HANDLE)
count++;
}
timer.stop ();
ACE_ASSERT (count == max_handles * max_iterations);
ACE_Profile_Timer::ACE_Elapsed_Time et;
timer.elapsed_time (et);
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("real time = %f secs, user time = %f secs, ")
ACE_TEXT ("system time = %f secs\n"),
et.real_time,
et.user_time,
et.system_time));
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("time per each of the %d calls = %f usecs\n"),
count,
et.real_time / double (count) * 1000000));
}
int
run_main (int argc, ACE_TCHAR *argv[])
{
ACE_START_TEST (ACE_TEXT ("Handle_Set_Test"));
int count = argc > 1
? ACE_OS::atoi (argv[1])
: ACE_Handle_Set::MAXSIZE;
size_t max_handles =
argc > 2
? ACE_OS::atoi (argv[2])
: ACE_Handle_Set::MAXSIZE;
size_t max_iterations =
argc > 3
? ACE_OS::atoi (argv[3])
: ACE_MAX_ITERATIONS;
test_duplicates (count);
test_boundaries ();
test_performance (max_handles,
max_iterations);
ACE_END_TEST;
return 0;
}
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