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// $Id$
#include "tao/ORB.h"
#include "tao/RTCORBA/RTCORBA.h"
#include "ace/Thread_Manager.h"
#include "ace/High_Res_Timer.h"
#include "ace/Get_Opt.h"
#include "ace/OS_NS_unistd.h"
static int test_try_lock_flag =
#if defined (ACE_HAS_MUTEX_TIMEOUTS) && !defined (ACE_HAS_WTHREADS)
1;
#else
// Don't test try_lock timed waits unless the underlying OS supports it
// Windows is the exception. It supports some mutex timeouts, so
// it has ACE_HAS_MUTEX_TIMEOUTS defined, but it doesn't support
// thread mutex timeouts which is what is needed for this to work.
0;
#endif /* defined (ACE_HAS_MUTEX_TIMEOUTS) && !defined (ACE_HAS_WTHREADS) */
// Parse command-line arguments.
static int
parse_args (int argc, ACE_TCHAR *argv[])
{
ACE_Get_Opt get_opts (argc, argv, ACE_TEXT("t"));
int c;
while ((c = get_opts ()) != -1)
switch (c)
{
case 't':
test_try_lock_flag = 0;
break;
case '?':
default:
ACE_ERROR_RETURN ((LM_ERROR,
"usage: %s "
"-t"
"\n",
argv [0]),
-1);
}
return 0;
}
static int
check_for_nil (CORBA::Object_ptr obj, const char *msg)
{
if (CORBA::is_nil (obj))
ACE_ERROR_RETURN ((LM_ERROR,
"ERROR: Object reference <%C> is nil\n",
msg),
-1);
else
return 0;
}
static int
test_mutex_simple (RTCORBA::RTORB_ptr rt_orb)
{
// Test the basic interface of the RTCORBA::Mutex This test should
// run even on platforms without thread support.
try
{
RTCORBA::Mutex_var my_mutex;
my_mutex = rt_orb->create_mutex ();
my_mutex->lock ();
my_mutex->unlock ();
my_mutex->lock ();
my_mutex->unlock ();
rt_orb->destroy_mutex (my_mutex.in ());
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception (
"Unexpected exception caught in test_mutex_simple()");
return -1;
}
return 0;
}
#if (TAO_HAS_NAMED_RT_MUTEXES == 1)
static int
test_named_mutex_simple (RTCORBA::RTORB_ptr rt_orb)
{
// Test the basic interface of the named RTCORBA::Mutex(es) This
// test should run even on platforms without thread support.
try
{
RTCORBA::Mutex_var larry_mutex1;
RTCORBA::Mutex_var moe_mutex1;
CORBA::Boolean created_flag;
larry_mutex1 = rt_orb->create_named_mutex ("larry",
created_flag);
if (created_flag != 1)
ACE_ERROR_RETURN ((LM_ERROR,
"ERROR: Expected named mutex larry to be created, but it wasn't\n"),
-1);
moe_mutex1 = rt_orb->create_named_mutex ("moe",
created_flag);
if (created_flag != 1)
ACE_ERROR_RETURN ((LM_ERROR,
"ERROR: Expected named mutex moe to be created, but it wasn't\n"),
-1);
larry_mutex1->lock ();
larry_mutex1->unlock ();
// Test creating the mutex a second time
{
RTCORBA::Mutex_var larry_mutex2;
larry_mutex2 = rt_orb->create_named_mutex ("larry",
created_flag);
if (created_flag != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"ERROR: Expected named mutex to already be created, but it wasn't\n"),
-1);
// test the pointers...
if (reinterpret_cast<void *> (larry_mutex1.in ())
!= reinterpret_cast<void *> (larry_mutex2.in ()))
ACE_ERROR_RETURN ((LM_ERROR,
"ERROR: Should have gotten the same mutex, but didn't\n"),
-1);
larry_mutex2->lock ();
larry_mutex2->unlock ();
}
// test opening the mutex
{
RTCORBA::Mutex_var larry_mutex3;
larry_mutex3 = rt_orb->open_named_mutex ("larry");
// test the pointers...
if (reinterpret_cast<void *> (larry_mutex1.in ())
!= reinterpret_cast<void *> (larry_mutex3.in ()))
ACE_ERROR_RETURN ((LM_ERROR,
"ERROR: Should have gotten the same mutex, but didn't\n"),
-1);
larry_mutex3->lock ();
larry_mutex3->unlock ();
}
// Make sure that nothing has been broken behind the scenes.
larry_mutex1->lock ();
larry_mutex1->unlock ();
rt_orb->destroy_mutex (larry_mutex1.in ());
rt_orb->destroy_mutex (moe_mutex1.in ());
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception (
"Unexpected exception caught in test_named_mutex_simple()");
return -1;
}
return 0;
}
static int
test_named_mutex_exception (RTCORBA::RTORB_ptr rt_orb)
{
// Test that open_named_mutex returns an exception when the mutex
// name isn't found.
// This test should run even on platforms without thread support.
try
{
RTCORBA::Mutex_var larry_mutex1;
larry_mutex1 = rt_orb->open_named_mutex ("larry");
ACE_ERROR_RETURN ((LM_ERROR,
"Expected a MutexNotFound exception, but didn't get one.\n"),
-1);
}
catch (const RTCORBA::RTORB::MutexNotFound& ex)
{
ACE_DEBUG ((LM_DEBUG, "Caught expected MutexNotFound exception.\n"));
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception (
"Unexpected exception caught in test_named_mutex_exception()");
return -1;
}
return 0;
}
#endif /* TAO_HAS_NAMED_RT_MUTEXES == 1 */
#if defined (ACE_HAS_THREADS)
const size_t MAX_ITERATIONS=10;
const size_t MAX_THREADS=4;
struct Mutex_Test_Data
{
RTCORBA::Mutex_ptr mutex;
int *shared_var;
int *error_flag;
};
static void *
mutex_test_thread (void *args)
{
Mutex_Test_Data *data = reinterpret_cast<Mutex_Test_Data *> (args);
RTCORBA::Mutex_ptr mutex = data->mutex;
int *shared_var = data->shared_var;
ACE_OS::srand (static_cast<u_int> (ACE_OS::time (0)));
try
{
for (size_t i = 0; i < MAX_ITERATIONS / 2; i++)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) = trying to lock on iteration %d\n"),
i));
mutex->lock ();
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) = locked on iteration %d\n"),
i));
// Check if the shared var is a value it shouldn't be when
// we're under the lock.
if (*shared_var != 0)
{
ACE_ERROR ((LM_ERROR,
"Expected shared_var to be 0 under the mutex\n"));
*data->error_flag = 1;
}
*shared_var = 1;
// Sleep for a random amount of time between 0 and 2
// seconds. Note that it's ok to use rand() here because we
// are running within the critical section defined by the
// Thread_Mutex.
ACE_OS::sleep (ACE_OS::rand () % 2);
if (*shared_var != 1)
{
ACE_ERROR ((LM_ERROR,
"Expected shared_var to still be 1 after sleeping\n"));
*data->error_flag = 1;
}
*shared_var = 0;
mutex->unlock ();
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) = unlocked on iteration %d\n"),
i));
}
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception (
"Unexpected exception caught in mutex_test_thread()");
*data->error_flag = 1;
}
return 0;
}
static int
test_mutex_threads (RTCORBA::RTORB_ptr rt_orb)
{
// test the RTCORBA::Mutex implementation be spawning many threads
// that repeatedly content for a lock. This code is based on the
// tests/Thread_Mutex_Test code.
Mutex_Test_Data test_data;
const u_int n_threads = MAX_THREADS;
int shared_var = 0;
int error_flag = 0;
try
{
RTCORBA::Mutex_ptr mutex = rt_orb->create_mutex ();
test_data.mutex = mutex;
test_data.shared_var = &shared_var;
test_data.error_flag = &error_flag;
if (ACE_Thread_Manager::instance ()->spawn_n (n_threads,
ACE_THR_FUNC (mutex_test_thread),
(void *) &test_data,
THR_NEW_LWP | THR_DETACHED) == -1)
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("%p\n%a"),
ACE_TEXT ("thread create failed")));
// Wait for the threads to exit.
ACE_Thread_Manager::instance ()->wait ();
CORBA::release (mutex);
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception (
"Unexpected exception caught in test_mutex_threads()");
return -1;
}
return error_flag;
}
static void *
mutex_test_try_lock_thread (void *args)
{
// test out try_lock() failure cases
Mutex_Test_Data *data = reinterpret_cast<Mutex_Test_Data *> (args);
RTCORBA::Mutex_ptr mutex = data->mutex;
CORBA::Boolean result;
try
{
// check that try_lock (0) returns false
ACE_DEBUG ((LM_DEBUG,"attempting try_lock (0) - expect failure (but no exceptions)\n"));
result = mutex->try_lock (0u);
if (result)
{
ACE_ERROR ((LM_ERROR,
"try_lock succeeded, but expected a failure\n"));
*data->error_flag = 1;
}
if (test_try_lock_flag)
{
ACE_High_Res_Timer timer;
// Check that try_lock (timeout) returns false (and times
// out)
ACE_DEBUG ((LM_DEBUG,
"attempting try_lock (5 sec) - expect failure after 5 secs (but no exceptions)\n"));
timer.start ();
result = mutex->try_lock (50000000u /*5sec*/);
timer.stop ();
if (result)
{
ACE_ERROR ((LM_ERROR,
"try_lock (timeout) succeeded, but expected a failure\n"));
*data->error_flag = 1;
}
ACE_Time_Value measured;
timer.elapsed_time (measured);
ACE_DEBUG ((LM_DEBUG,
"try_lock returned after %u secs, %u usecs\n",
measured.sec(),
measured.usec()));
if ((measured.sec() == 4 && measured.usec() >= 500000)
|| (measured.sec() == 5 && measured.usec() <= 500000))
/* success */;
else
{
ACE_ERROR ((LM_ERROR,
"try_lock timed out not as expected\n"));
*data->error_flag = 1;
}
}
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception (
"Unexpected exception caught in mutex_test_try_lock_thread()");
*data->error_flag = 1;
}
return 0;
}
static int
test_mutex_try_lock (RTCORBA::RTORB_ptr rt_orb)
{
Mutex_Test_Data test_data;
CORBA::Boolean result;
int shared_var = 0;
int error_flag = 0;
try
{
RTCORBA::Mutex_ptr mutex = rt_orb->create_mutex ();
// Test out try_lock and keep the lock so that the spawned task
// can test out try_lock failure cases
result = mutex->try_lock (0u);
if (!result)
ACE_ERROR_RETURN ((LM_ERROR,
"try_lock failed\n"),
-1);
test_data.mutex = mutex;
test_data.shared_var = &shared_var;
test_data.error_flag = &error_flag;
ACE_DEBUG ((LM_DEBUG,
"Spawning the test thread\n"));
if (ACE_Thread_Manager::instance ()->spawn (ACE_THR_FUNC (mutex_test_try_lock_thread),
(void *) &test_data,
THR_NEW_LWP | THR_DETACHED) == -1)
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("%p\n%a"),
ACE_TEXT ("thread create failed")));
// Wait for the threads to exit.
ACE_Thread_Manager::instance ()->wait ();
mutex->unlock ();
CORBA::release (mutex);
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception (
"Unexpected exception caught in test_mutex_try_lock()");
return -1;
}
return error_flag;
}
#endif /* ACE_HAS_THREADS */
int
ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
try
{
// ORB.
CORBA::ORB_var orb = CORBA::ORB_init (argc, argv);
// Parse arguments.
if (parse_args (argc, argv) != 0)
return -1;
// RTORB.
CORBA::Object_var object =
orb->resolve_initial_references ("RTORB");
RTCORBA::RTORB_var rt_orb = RTCORBA::RTORB::_narrow (object.in ());
if (check_for_nil (rt_orb.in (), "RTORB") == -1)
return -1;
ACE_DEBUG ((LM_DEBUG,
"Running RTCORBA Mutex unit tests\n"));
if (test_mutex_simple (rt_orb.in ()) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"test_mutex_simple failed\n"),
-1);
#if (TAO_HAS_NAMED_RT_MUTEXES == 1)
if (test_named_mutex_simple (rt_orb.in ()) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"test_named_mutex_simple failed\n"),
-1);
if (test_named_mutex_exception (rt_orb. in ()) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"test_named_mutex_exception failed\n"),
-1);
#else
ACE_DEBUG ((LM_DEBUG,
"Named RT_Mutex support is not enabled. "
"Skipping Named RT_Mutex tests.\n"));
#endif /* TAO_HAS_NAMED_RT_MUTEXES == 1 */
#if defined (ACE_HAS_THREADS)
if (test_mutex_threads (rt_orb.in ()) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"test_mutex_threads failed\n"),
-1);
else if (test_mutex_try_lock (rt_orb.in ()) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"test_mutex_try_lock failed\n"),
-1);
#endif /* ACE_HAS_THREADS */
ACE_DEBUG ((LM_DEBUG, "Mutex test finished\n\n"));
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception (
"Unexpected exception caught in Mutex test server:");
return -1;
}
return 0;
}
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