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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
//
// ============================================================================
#include "ace/Profile_Timer.h"
#include "ace/Handle_Set.h"
#include "test_config.h"
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 = 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);
}
static void
test_boundaries (void)
{
ACE_Handle_Set handle_set;
ACE_HANDLE handle;
// First test an empty set.
ACE_Handle_Set_Iterator i1 (handle_set);
while ((handle = i1 ()) != ACE_INVALID_HANDLE)
ACE_ASSERT (!"this shouldn't get called since the set is empty!\n");
// Insert a bunch of HANDLEs into the set, testing for boundary
// conditions.
handle_set.set_bit ((ACE_HANDLE) 0);
handle_set.set_bit ((ACE_HANDLE) 1);
handle_set.set_bit ((ACE_HANDLE) 32);
handle_set.set_bit ((ACE_HANDLE) 63);
handle_set.set_bit ((ACE_HANDLE) 64);
handle_set.set_bit ((ACE_HANDLE) 65);
handle_set.set_bit ((ACE_HANDLE) 127);
handle_set.set_bit ((ACE_HANDLE) 128);
handle_set.set_bit ((ACE_HANDLE) 129);
handle_set.set_bit ((ACE_HANDLE) 255);
int count = 0;
ACE_Handle_Set_Iterator i2 (handle_set);
while ((handle = i2 ()) != ACE_INVALID_HANDLE)
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;
ACE_HANDLE handle;
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 ((handle = 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, "real time = %f secs, user time = %f secs, system time = %f secs\n",
et.real_time, et.user_time, et.system_time));
ACE_DEBUG ((LM_DEBUG, "time per each of the %d calls = %f usecs\n",
count, (et.real_time / double (count)) * 1000000));
}
int
main (int argc, char *argv[])
{
ACE_START_TEST ("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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