text: #include "ace/OS_NS_unistd.h"
  
  #include "ace/Monitor_Control/Monitor_Control.h"
  
  #include "examples/Monitor/MC_Test_Utilities.h"
  
  #if defined (ACE_HAS_MONITOR_FRAMEWORK) && (ACE_HAS_MONITOR_FRAMEWORK == 1)
  
  using namespace ACE_VERSIONED_NAMESPACE_NAME::ACE::Monitor_Control;
  
  /// Subclass of ACE_Task_Base, meaning that the override of
  /// the svc() method below will run in a new thread when
  /// activate() is called on a class instance.
  class Monitor_Checker : public ACE_Task_Base
  {
  public:
    int svc (void)
    {
      /// Get an instance of the MC service singleton.
      MC_ADMINMANAGER* mgr =
        ACE_Dynamic_Service<MC_ADMINMANAGER>::instance ("MC_ADMINMANAGER");
  
      /// Call on the administrator class to look up the desired monitors.
      Monitor_Base *bytes_monitor =
        mgr->admin ().monitor_point ("OS/Network/BytesSent");
  
      if (bytes_monitor != 0)
        {
          /// Query the monitor for its data every 2 seconds, and call the
          /// appropriate display function.
          for (int i = 0; i < 15; ++i)
            {
              ACE_OS::sleep (2);
  
              Monitor_Control_Types::Data data (bytes_monitor->type ());
              bytes_monitor->retrieve (data);
              MC_Test_Utilities::display_bytes_sent (data);
            }
  
          bytes_monitor->remove_ref ();
        }
  
      return 0;
    }
  };
  
  #endif /* ACE_HAS_MONITOR_FRAMEWORK==1 */
  
  int
  ACE_TMAIN (int /* argc */, ACE_TCHAR * /* argv */ [])
  {
  #if defined (ACE_HAS_MONITOR_FRAMEWORK) && (ACE_HAS_MONITOR_FRAMEWORK == 1)
  
    /// Set the timer for # of threads check at 2 sec.
    Monitor_Base *monitor =
      create_os_monitor<BYTES_SENT_MONITOR> (0, ACE_Time_Value (2));
  
    /// Runs the reactor's event loop in a separate thread so the timer(s)
    /// can run concurrently with the application.
    START_PERIODIC_MONITORS;
  
    /// Run the monitor checker in a separate thread.
    Monitor_Checker monitor_checker;
    monitor_checker.activate ();
  
    ACE_OS::sleep (30);
  
    /// End the reactor's event loop, stopping the timer(s).
    STOP_PERIODIC_MONITORS;
  
    monitor->remove_ref ();
  
  #endif /* ACE_HAS_MONITOR_FRAMEWORK==1 */
  
    return 0;
  }
  