1 files changed, 110 insertions, 0 deletions
diff --git a/ACE/examples/Threads/thread_manager.cpp b/ACE/examples/Threads/thread_manager.cpp
new file mode 100644
index 00000000000..573b61bc5cb
--- /dev/null
+++ b/ACE/examples/Threads/thread_manager.cpp
@@ -0,0 +1,110 @@
+// $Id$
+
+// Test out the group management mechanisms provided by the
+// ACE_Thread_Manager, including the group signal handling, group
+// suspension and resumption, and cooperative thread cancellation
+// mechanisms.
+
+#include "ace/OS_NS_unistd.h"
+#include "ace/OS_main.h"
+#include "ace/Service_Config.h"
+#include "ace/Thread_Manager.h"
+#include "ace/Signal.h"
+
+
+
+#if defined (ACE_HAS_THREADS)
+
+extern "C" void
+handler (int signum)
+{
+  ACE_DEBUG ((LM_DEBUG, "(%t) received signal %d\n", signum));
+}
+
+static void *
+worker (intptr_t iterations)
+{
+  for (intptr_t i = 0; i < iterations; i++)
+    {
+      if ((i % 1000) == 0)
+        {
+          ACE_DEBUG ((LM_DEBUG,
+                      "(%t) checking cancellation before iteration %d!\n",
+                      i));
+
+          if (ACE_Thread_Manager::instance ()->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 intptr_t DEFAULT_ITERATIONS = 100000;
+
+int
+ACE_TMAIN (int argc, ACE_TCHAR *argv[])
+{
+  ACE_Service_Config daemon;
+
+  daemon.open (argv[0]);
+
+  // Register a signal handler.
+  ACE_Sig_Action sa ((ACE_SignalHandler) handler, SIGINT);
+  ACE_UNUSED_ARG (sa);
+
+  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),
+                                 reinterpret_cast<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
+ACE_TMAIN (int, ACE_TCHAR *[])
+{
+  ACE_ERROR_RETURN ((LM_ERROR, "threads not supported on this platform\n"), -1);
+}
+#endif /* ACE_HAS_THREADS */