731  private:

   731  private:

   732   static WatcherThread* _watcher_thread;

   732   static WatcherThread* _watcher_thread;

   733 

   733 

   734   static bool _startable;

   734   static bool _startable;

   735   volatile static bool _should_terminate; // updated without holding lock

   735   volatile static bool _should_terminate; // updated without holding lock

   736  public:

   738  public:

   737   enum SomeConstants {

   739   enum SomeConstants {

   738     delay_interval = 10                          // interrupt delay in milliseconds

   740     delay_interval = 10                          // interrupt delay in milliseconds

   739   };

   741   };

   740 

   742 

   757   static void start();

   759   static void start();

   758   static void stop();

   760   static void stop();

   759   // Only allow start once the VM is sufficiently initialized

   761   // Only allow start once the VM is sufficiently initialized

   760   // Otherwise the first task to enroll will trigger the start

   762   // Otherwise the first task to enroll will trigger the start

   761   static void make_startable();

   763   static void make_startable();

   762 

   772 

   763  private:

   773  private:

   764   int sleep() const;

   774   int sleep() const;

   765 };

   775 };

   766 

   776