Initial revision

1 files changed, 105 insertions, 0 deletions

diff --git a/examples/Threads/test_thread_manager.cpp b/examples/Threads/test_thread_manager.cpp
new file mode 100644
index 00000000000..efa5a2cc2a6
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+++ b/examples/Threads/test_thread_manager.cpp
@@ -0,0 +1,105 @@
+// Test out the group management mechanisms provided by the
+// @(#)test_thread_manager.cpp	1.1	10/18/96
+
+// ACE_Thread_Manager, including the group signal handling, group
+// suspension and resumption, and cooperative thread cancellation
+// mechanisms.
+
+#include "ace/Service_Config.h"
+#include "ace/Thread_Manager.h"
+
+#if defined (ACE_HAS_THREADS)
+
+static void
+handler (int signum)
+{
+  ACE_DEBUG ((LM_DEBUG, "(%t) received signal %d\n", signum));
+}
+
+static void *
+worker (int iterations)
+{
+  ACE_Thread_Control tc (ACE_Service_Config::thr_mgr ());
+
+  for (int i = 0; i < iterations; i++)
+    {
+      if ((i % 1000) == 0)
+	{
+	  ACE_DEBUG ((LM_DEBUG, 
+		      "(%t) checking cancellation before iteration %d!\n", 
+		      i));
+	
+	  if (ACE_Service_Config::thr_mgr ()->testcancel (ACE_Thread::self ()) != 0)
+	    {
+	      ACE_DEBUG ((LM_DEBUG, 
+			  "(%t) has been cancelled before iteration %d!\n", 
+			  i));
+	      break;
+	    }
+	}
+    }
+
+  // Destructor removes thread from Thread_Manager.
+  return 0;
+}
+
+static const int DEFAULT_THREADS = ACE_DEFAULT_THREADS;
+static const int DEFAULT_ITERATIONS = 100000;
+
+int
+main (int argc, char *argv[])
+{
+  ACE_Service_Config daemon;
+
+  daemon.open (argv[0]);
+
+  // Register a signal handler
+  ACE_SignalHandler sh (handler);
+  ACE_Sig_Action sa (sh, SIGINT);
+
+  int n_threads = argc > 1 ? ACE_OS::atoi (argv[1]) : DEFAULT_THREADS;
+  int n_iterations = argc > 2 ? ACE_OS::atoi (argv[2]) : DEFAULT_ITERATIONS;
+
+  ACE_Thread_Manager *thr_mgr = ACE_Service_Config::thr_mgr ();
+
+  int grp_id = thr_mgr->spawn_n (n_threads, ACE_THR_FUNC (worker),
+				 (void *) n_iterations,
+				 THR_NEW_LWP | THR_DETACHED);
+
+  // Wait for 1 second and then suspend every thread in the group.
+  ACE_OS::sleep (1);
+  ACE_DEBUG ((LM_DEBUG, "(%t) suspending group\n"));
+  if (thr_mgr->suspend_grp (grp_id) == -1)
+    ACE_ERROR ((LM_DEBUG, "(%t) %p\n", "suspend_grp"));
+
+  // Wait for 1 more second and then resume every thread in the
+  // group.
+  ACE_OS::sleep (ACE_Time_Value (1));
+  ACE_DEBUG ((LM_DEBUG, "(%t) resuming group\n"));
+  if (thr_mgr->resume_grp (grp_id) == -1)
+    ACE_ERROR ((LM_DEBUG, "(%t) %p\n", "resume_grp"));
+
+  // Wait for 1 more second and then send a SIGINT to every thread in
+  // the group.
+  ACE_OS::sleep (ACE_Time_Value (1));
+  ACE_DEBUG ((LM_DEBUG, "(%t) signaling group\n"));
+  if (thr_mgr->kill_grp (grp_id, SIGINT) == -1)
+    ACE_ERROR ((LM_DEBUG, "(%t) %p\n", "kill_grp"));
+
+  // Wait for 1 more second and then cancel all the threads.
+  ACE_OS::sleep (ACE_Time_Value (1));
+  ACE_DEBUG ((LM_DEBUG, "(%t) cancelling group\n"));
+  if (thr_mgr->cancel_grp (grp_id) == -1)
+    ACE_ERROR ((LM_DEBUG, "(%t) %p\n", "cancel_grp"));
+
+  // Perform a barrier wait until all the threads have shut down.
+  thr_mgr->wait ();
+  return 0;
+}
+#else
+int 
+main (int, char *[])
+{
+  ACE_ERROR_RETURN ((LM_ERROR, "threads not supported on this platform\n"), -1);
+}
+#endif /* ACE_HAS_THREADS */