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//=============================================================================
/**
* @file Task_Group_Test.cpp
*
* This test program illustrates the logic of the grp_id handling
* mechanism in <ACE_Task_Base> and the <ACE_Thread_Manager>.
* Partially reuses test submitted by Paxton Mason in Bugzilla #2366
*
* @author Martin Corino <mcorino@remedy.nl>
*/
//=============================================================================
#include "test_config.h"
#include "ace/Atomic_Op.h"
#include "ace/Task.h"
#include "ace/OS_NS_unistd.h"
#if defined (ACE_HAS_THREADS)
const int MAX_GROUP_THREADS = ACE_MAX_THREADS * 2;
static ACE_Atomic_Op<ACE_Thread_Mutex, int> run_count (0);
class Waiter_Task : public ACE_Task_Base
{
public:
Waiter_Task (ACE_Thread_Manager* tm = 0)
: ACE_Task_Base (tm) {}
int svc() override;
};
int
Waiter_Task::svc()
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%t|grp_id=%d) waiting for thread cancellation.\n"), this->grp_id ()));
run_count++;
// wait until canceled
while (!ACE_Task_Base::thr_mgr ()->testcancel (ACE_OS::thr_self ()))
ACE_OS::sleep (0);
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%t|grp_id=%d) thread cancelled.\n"), this->grp_id ()));
run_count--;
return 0;
}
#endif /* ACE_HAS_THREADS */
int
run_main (int, ACE_TCHAR *[])
{
ACE_START_TEST (ACE_TEXT ("Task_Group_Test"));
#if defined (ACE_HAS_THREADS)
ACE_thread_t thread_list[MAX_GROUP_THREADS] = {0};
int group_id = -1;
Waiter_Task waiter_task (ACE_Thread_Manager::instance ());
// activate a single thread
waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 1);
// get the assigned grp_id
group_id = waiter_task.grp_id ();
// attempt to add a thread -> this should fail without force_activate
if (waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 1) != 1)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("ACE_Task_Base::activate should have failed to add new thread.")));
}
// force addition of new thread
if (waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 1, 1) != 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("ACE_Task_Base::activate should have succeeded to force addition of new thread.")));
}
// force addition of new thread ignoring specific group id
if (waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 1, 1, ACE_DEFAULT_THREAD_PRIORITY, group_id+1) != 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("ACE_Task_Base::activate should have succeeded to force addition of new thread.")));
}
// we should now have 3 threads in group 'group_id'
if (waiter_task.thr_mgr ()->thread_grp_list (group_id, &thread_list[0], MAX_GROUP_THREADS) != 3)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("Should have found 3 threads in group %d."), group_id));
}
// cancel all threads
waiter_task.thr_mgr ()->cancel_all ();
// wait for threads to exit cleanly
while (waiter_task.thr_mgr ()->num_threads_in_task (&waiter_task) > 0)
ACE_OS::sleep (0);
// restart 2 threads reusing the group id
if (waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 2) != 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("ACE_Task_Base::activate should have succeeded to add new threads.")));
}
// attempt to add a thread -> this should fail without force_activate
if (waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 1) != 1)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("ACE_Task_Base::activate should have failed to add new thread.")));
}
// force addition of new thread
if (waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 1, 1) != 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("ACE_Task_Base::activate should have succeeded to force addition of new thread.")));
}
// force addition of new thread ignoring specific group id
if (waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 1, 1, ACE_DEFAULT_THREAD_PRIORITY, group_id+1) != 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("ACE_Task_Base::activate should have succeeded to force addition of new thread.")));
}
// we should now have 4 threads in group 'group_id'
if (waiter_task.thr_mgr ()->thread_grp_list (group_id, &thread_list[0], MAX_GROUP_THREADS) != 4)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("Should have found 4 threads in group %d."), group_id));
}
// wait till the threads actually started up
while (run_count != 4)
ACE_OS::sleep (0);
// change the group id of all threads of the task
group_id += 1;
waiter_task.grp_id (group_id);
// we should still have 4 threads in group with new 'group_id'
if (waiter_task.thr_mgr ()->thread_grp_list (group_id, &thread_list[0], MAX_GROUP_THREADS) != 4)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("Should have found 4 threads in group %d."), group_id));
}
// cancel all threads
waiter_task.thr_mgr ()->cancel_all ();
// wait for threads to exit cleanly
while (waiter_task.thr_mgr ()->num_threads_in_task (&waiter_task) > 0)
ACE_OS::sleep (0);
// restart 3 threads using explicit new group id
group_id = 33;
if (waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 3, 0, ACE_DEFAULT_THREAD_PRIORITY, group_id) != 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("ACE_Task_Base::activate should have succeeded to add new threads.")));
}
// attempt to add a thread -> this should fail without force_activate
if (waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 1) != 1)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("ACE_Task_Base::activate should have failed to add new thread.")));
}
// force addition of new thread
if (waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 1, 1) != 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("ACE_Task_Base::activate should have succeeded to force addition of new thread.")));
}
// force addition of new thread ignoring specific group id
if (waiter_task.activate (THR_NEW_LWP | THR_DETACHED, 1, 1, ACE_DEFAULT_THREAD_PRIORITY, group_id+1) != 0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("ACE_Task_Base::activate should have succeeded to force addition of new thread.")));
}
// we should now have 5 threads in group 'group_id'
if (waiter_task.thr_mgr ()->thread_grp_list (group_id, &thread_list[0], MAX_GROUP_THREADS) != 5)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("Should have found 5 threads in group %d."), group_id));
}
// cancel all threads
waiter_task.thr_mgr ()->cancel_all ();
// wait for threads to exit cleanly
while (waiter_task.thr_mgr ()->num_threads_in_task (&waiter_task) > 0)
ACE_OS::sleep (0);
#else
ACE_ERROR ((LM_INFO,
ACE_TEXT ("threads not supported on this platform\n")));
#endif /* ACE_HAS_THREADS */
ACE_END_TEST;
return 0;
}
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