720   virtual void run();

   720   virtual void run();

   721 

   721 

   722  private:

   722  private:

   723   static WatcherThread* _watcher_thread;

   723   static WatcherThread* _watcher_thread;

   724 

   724 

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

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

   726  public:

   727  public:

   727   enum SomeConstants {

   728   enum SomeConstants {

   728     delay_interval = 10                          // interrupt delay in milliseconds

   729     delay_interval = 10                          // interrupt delay in milliseconds

   729   };

   730   };

   736 

   737 

   737   // Printing

   738   // Printing

   738   char* name() const { return (char*)"VM Periodic Task Thread"; }

   739   char* name() const { return (char*)"VM Periodic Task Thread"; }

   739   void print_on(outputStream* st) const;

   740   void print_on(outputStream* st) const;

   740   void print() const { print_on(tty); }

   741   void print() const { print_on(tty); }

   741 

   743 

   742   // Returns the single instance of WatcherThread

   744   // Returns the single instance of WatcherThread

   743   static WatcherThread* watcher_thread()         { return _watcher_thread; }

   745   static WatcherThread* watcher_thread()         { return _watcher_thread; }

   744 

   746 

   745   // Create and start the single instance of WatcherThread, or stop it on shutdown

   747   // Create and start the single instance of WatcherThread, or stop it on shutdown

   746   static void start();

   748   static void start();

   747   static void stop();

   749   static void stop();

   748 };

   756 };

   749 

   757 

   750 

   758 

   751 class CompilerThread;

   759 class CompilerThread;

   752 

   760