1 files changed, 93 insertions, 0 deletions
diff --git a/ACE/examples/APG/ThreadManagement/Signals.cpp b/ACE/examples/APG/ThreadManagement/Signals.cpp
new file mode 100644
index 00000000000..85547ed3249
--- /dev/null
+++ b/ACE/examples/APG/ThreadManagement/Signals.cpp
@@ -0,0 +1,93 @@
+// $Id$
+
+#include "ace/config-lite.h"
+#if defined (ACE_HAS_THREADS)
+
+#include "ace/OS_NS_time.h"
+#include "ace/OS_NS_unistd.h"
+#include "ace/Task.h"
+#include "ace/Log_Msg.h"
+#include "ace/Signal.h"
+#include "ace/Sig_Handler.h"
+
+// Listing 1 code/ch13
+class SignalableTask : public ACE_Task<ACE_MT_SYNCH>
+{
+public:
+  virtual int handle_signal (int signum,
+                             siginfo_t *  = 0,
+                             ucontext_t * = 0)
+  {
+    if (signum == SIGUSR1)
+      {
+        ACE_DEBUG ((LM_DEBUG,
+                    ACE_TEXT ("(%t) received a %S signal\n"),
+                    signum));
+        handle_alert ();
+      }
+    return 0;
+  }
+
+  virtual int svc (void)
+  {
+    ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) Starting thread\n")));
+
+    while (1)
+      {
+        ACE_Message_Block* mb = 0;
+        ACE_Time_Value tv (0, 1000);
+        tv += ACE_OS::time (0);
+        int result = this->getq (mb, &tv);
+        if (result == -1 && errno == EWOULDBLOCK)
+          continue;
+        else
+          process_message (mb);
+      }
+
+      ACE_NOTREACHED (return 0);
+    }
+
+  void handle_alert ();
+  void process_message (ACE_Message_Block *mb);
+};
+// Listing 1
+
+void
+SignalableTask::process_message (ACE_Message_Block *)
+{
+}
+
+void
+SignalableTask::handle_alert ()
+{
+}
+
+// Listing 2 code/ch13
+int ACE_TMAIN (int, ACE_TCHAR *[])
+{
+  SignalableTask handler;
+  handler.activate (THR_NEW_LWP | THR_JOINABLE , 5);
+
+  ACE_Sig_Handler sh;
+  sh.register_handler (SIGUSR1, &handler);
+
+  ACE_OS::sleep (1);
+
+  ACE_Thread_Manager::instance () ->
+    kill_grp (handler.grp_id (), SIGUSR1);
+  handler.wait ();
+  return 0;
+}
+// Listing 2
+
+#else
+#include "ace/OS_main.h"
+#include "ace/OS_NS_stdio.h"
+
+int ACE_TMAIN (int, ACE_TCHAR *[])
+{
+  ACE_OS::puts (ACE_TEXT ("This example requires threads."));
+  return 0;
+}
+
+#endif /* ACE_HAS_THREADS */