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.

*** 123,132 ****
--- 123,135 ----
   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 {