src/share/vm/runtime/osThread.hpp

rev 8802 : G1 performance improvements: card batching, joining, sorting, prefetching and write barrier fence elision and simplification based on a global syncrhonization using handshakes piggybacking on thread-local safepoints.

@@ -123,10 +123,13 @@
  private:
   // _thread_id is kernel thread id (similar to LWP id on Solaris). Each
   // thread has a unique thread_id (BsdThreads or NPTL). It can be used
   // to access /proc.
   thread_id_t _thread_id;
+
+ public:
+  bool is_online();
 };
 
 
 // Utility class for use with condition variables:
 class OSThreadWaitState : public StackObj {