TAO/examples/RTCORBA/Activity/Thread_Task.h

   1 /* -*- C++ -*- */
   2 //=============================================================================
   3 /**
   4  *  @file Thread_Task.h
   5  *
   6  *  A periodic task implementation that uses sleep.
   7  *
   8  *  @author Pradeep Gore <pradeep@cs.wustl.edu>
   9  */
  10 //=============================================================================
  11 #ifndef THREAD_TASK_H
  12 #define THREAD_TASK_H
  13
  14 #include "Periodic_Task.h"
  15
  16 /**
  17  * @class Thread_Task
  18  *
  19  * @brief A periodic task implementation that uses sleep.
  20  *
  21  * simplified Periodic Task -
  22  * if the <name_> activity, which is fired every <period_> time intervals,
  23  * exceeds its <exec_time_>, it is "late".
  24  * if <exec_time_> is greater than the <period_>, the activity(s) for the
  25  * overlapped period(s) are considered "missed".
  26  */
  27 class Thread_Task : public Periodic_Task
  28 {
  29  public:
  30   /// Constructor
  31   Thread_Task (void);
  32
  33   /// Activate thread(s).
  34   virtual int activate_task (ACE_Barrier* barrier, RTCORBA::PriorityMapping *priority_mapping);
  35
  36  protected:
  37
  38   /// task svc
  39   virtual int svc (void);
  40 };
  41
  42 #endif /* THREAD_TASK_H */