src/share/vm/runtime/synchronizer.hpp

rev 13002 : 8180175: ObjectSynchronizer only needs to iterate in-use monitors
Summary: When using -XX:+MonitorInUseLists, then only iterate in-use monitors.
Reviewed-by: zgu,dholmes

*** 134,143 ****
--- 134,145 ----
                                    ObjectMonitor** freeTailp);
    static bool deflate_monitor(ObjectMonitor* mid, oop obj,
                                ObjectMonitor** freeHeadp,
                                ObjectMonitor** freeTailp);
    static void oops_do(OopClosure* f);
+   // Process oops in thread local used monitors
+   static void thread_local_used_oops_do(Thread* thread, OopClosure* f);
  
    // debugging
    static void sanity_checks(const bool verbose,
                              const unsigned int cache_line_size,
                              int *error_cnt_ptr, int *warning_cnt_ptr);
*** 154,163 ****
--- 156,173 ----
    // global monitor in-use list, for moribund threads,
    // monitors they inflated need to be scanned for deflation
    static ObjectMonitor * volatile gOmInUseList;
    // count of entries in gOmInUseList
    static int gOmInUseCount;
+ 
+   // Process oops in all monitors
+   static void global_oops_do(OopClosure* f);
+   // Process oops in all global used monitors (i.e. moribund thread's monitors)
+   static void global_used_oops_do(OopClosure* f);
+   // Process oops in monitors on the given list
+   static void list_oops_do(ObjectMonitor* list, OopClosure* f);
+ 
  };
  
  // ObjectLocker enforced balanced locking and can never thrown an
  // IllegalMonitorStateException. However, a pending exception may
  // have to pass through, and we must also be able to deal with