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// $Id: cancel.cpp 91670 2010-09-08 18:02:26Z johnnyw $
// Test out the cooperative thread cancellation mechanisms provided by
// the ACE_Thread_Manager.
#include "ace/OS_NS_unistd.h"
#include "ace/OS_main.h"
#include "ace/Service_Config.h"
#include "ace/Thread_Manager.h"
#if defined (ACE_HAS_THREADS)
static void *
worker (intptr_t iterations)
{
for (intptr_t i = 0; i < iterations; i++)
{
if ((i % 10) == 0
&& (ACE_Thread_Manager::instance ()->testcancel (ACE_Thread::self ()) != 0))
{
ACE_DEBUG ((LM_DEBUG, "(%t) has been cancelled before iteration!\n", i));
break;
}
}
return 0;
}
static const int DEFAULT_THREADS = ACE_DEFAULT_THREADS;
static const intptr_t DEFAULT_ITERATIONS = 100000;
int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
ACE_Service_Config daemon;
daemon.open (argv[0]);
int n_threads = argc > 1 ? ACE_OS::atoi (argv[1]) : DEFAULT_THREADS;
intptr_t n_iterations =
argc > 2 ? ACE_OS::atoi (argv[2]) : DEFAULT_ITERATIONS;
ACE_Thread_Manager *thr_mgr = ACE_Thread_Manager::instance ();
int grp_id = thr_mgr->spawn_n (n_threads, ACE_THR_FUNC (worker),
(void *) n_iterations,
THR_NEW_LWP | THR_DETACHED);
// Wait for 2 seconds and then suspend every thread in the group.
ACE_OS::sleep (2);
thr_mgr->suspend_grp (grp_id);
// Wait for 2 more seconds and then resume every thread in the
// group.
ACE_OS::sleep (ACE_Time_Value (2));
thr_mgr->resume_grp (grp_id);
// Wait for 2 more seconds and then send a SIGINT to every thread in
// the group.
ACE_OS::sleep (ACE_Time_Value (2));
thr_mgr->kill_grp (grp_id, SIGINT);
// Wait for 2 more seconds and then exit (which should kill all the
// threads)!
ACE_OS::sleep (ACE_Time_Value (2));
return 0;
}
#else
int
ACE_TMAIN (int, ACE_TCHAR *[])
{
ACE_ERROR_RETURN ((LM_ERROR, "threads not supported on this platform\n"), -1);
}
#endif /* ACE_HAS_THREADS */
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