TAO/tests/Xt_Stopwatch/timer.h

   1
   2 //=============================================================================
   3 /**
   4  *  @file   timer.h
   5  *
   6  *  @author Bala <bala@cs.wustl.edu>
   7  */
   8 //=============================================================================
   9
  10
  11 #ifndef TIMER_H
  12 #define TIMER_H
  13
  14 #include "Stopwatch_display.h"
  15
  16
  17 #include <Xm/Xm.h>
  18
  19
  20 class Timer_imp
  21 {
  22  public:
  23   /// Constructor
  24   Timer_imp (XtAppContext &,
  25              CORBA::Long,
  26              Stopwatch_display *);
  27
  28   /// Destructor
  29   virtual ~Timer_imp ();
  30
  31   /// Resets, and starts the clock ticking
  32   void start ();
  33
  34   /// Stops the clock
  35   void stop ();
  36
  37   /// Returns time since timer started
  38   CORBA::Float  elapsed_time ();
  39
  40  private:
  41   /// Static member function used for TimeOut callback.
  42   static void tick_callback (XtPointer,
  43                              XtIntervalId *);
  44
  45   /// Called every interval_ milliseconds
  46   void tick ();
  47
  48   /// Called at each clock tick...
  49   virtual void report_time (CORBA::Float);
  50
  51   /// A copy of the stopwatch object
  52   Stopwatch_display *stopwatch_;
  53
  54   /// Current number of ticks
  55   CORBA::Long counter_;
  56
  57   /// Time in milliseconds between updates
  58   CORBA::Long interval_;
  59
  60   /// Identifier of current TimeOut
  61   XtIntervalId id_;
  62
  63   /// Required by Xt functions
  64   XtAppContext app_;
  65 };
  66
  67
  68 #endif /* TIMER_H */