src/share/vm/gc/shared/concurrentGCThread.hpp

rev 10389 : imported patch webrev.01
rev 10390 : imported patch webrev.02
rev 10391 : [mq]: webrev.03
rev 10392 : imported patch webrev.04

*** 29,44 ****
  #include "utilities/macros.hpp"
  
  class ConcurrentGCThread: public NamedThread {
    friend class VMStructs;
  
- protected:
    bool volatile _should_terminate;
    bool _has_terminated;
  
!   // Create and start the thread (setting it's priority high.)
!   void create_and_start();
  
    // Do initialization steps in the thread: record stack base and size,
    // init thread local storage, set JNI handle block.
    void initialize_in_thread();
  
--- 29,44 ----
  #include "utilities/macros.hpp"
  
  class ConcurrentGCThread: public NamedThread {
    friend class VMStructs;
    
    bool volatile _should_terminate;
    bool _has_terminated;
    
! protected:
!   // Create and start the thread (setting it's priority.)
!   void create_and_start(ThreadPriority prio = NearMaxPriority);
  
    // Do initialization steps in the thread: record stack base and size,
    // init thread local storage, set JNI handle block.
    void initialize_in_thread();
  
*** 47,61 ****
--- 47,75 ----
  
    // Record that the current thread is terminating, and will do more
    // concurrent work.
    void terminate();
  
+   // Do the specific GC work. Called by run() after initialization complete.
+   virtual void run_service() = 0;
+ 
+   // Shut down the specific GC work. Called by stop() as part of termination protocol.
+   virtual void stop_service()  = 0;
+ 
  public:
    ConcurrentGCThread();
  
    // Tester
    bool is_ConcurrentGC_thread() const { return true; }
+ 
+   virtual void run();
+ 
+   // shutdown following termination protocol
+   virtual void stop();
+   
+   bool should_terminate() { return _should_terminate; }
+   bool has_terminated()   { return _has_terminated; }
  };
  
  // The SurrogateLockerThread is used by concurrent GC threads for
  // manipulating Java monitors, in particular, currently for
  // manipulating the pending_list_lock. XXX