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
  24   /// Constructor
  25   Timer_imp (XtAppContext &,
  26              CORBA::Long,
  27              Stopwatch_display *);
  28
  29   /// Destructor
  30   virtual ~Timer_imp ();
  31
  32   /// Resets, and starts the clock ticking
  33   void start (void);
  34
  35   /// Stops the clock
  36   void stop (void);
  37
  38   /// Returns time since timer started
  39   CORBA::Float  elapsed_time (void);
  40
  41  private:
  42
  43   /// Static member function used for TimeOut callback.
  44   static void tick_callback (XtPointer,
  45                              XtIntervalId *);
  46
  47   /// Called every interval_ milliseconds
  48   void tick (void);
  49
  50   /// Called at each clock tick...
  51   virtual void report_time (CORBA::Float);
  52
  53   /// A copy of the stopwatch object
  54   Stopwatch_display *stopwatch_;
  55
  56   /// Current number of ticks
  57   CORBA::Long counter_;
  58
  59   /// Time in milliseconds between updates
  60   CORBA::Long interval_;
  61
  62   /// Identifier of current TimeOut
  63   XtIntervalId id_;
  64
  65   /// Required by Xt functions
  66   XtAppContext app_;
  67 };
  68
  69
  70 #endif /* TIMER_H */