src/share/vm/runtime/thread.hpp

rev 9380 : 8237499: JFR: Include stack trace in the ThreadStart event
Reviewed-by: egahlin

*** 329,338 ****
--- 329,339 ----
  
    virtual char* name() const { return (char*)"Unknown thread"; }
  
    // Returns the current thread
    static inline Thread* current();
+   static inline Thread* current_or_null();
  
    // Common thread operations
    static void set_priority(Thread* thread, ThreadPriority priority);
    static ThreadPriority get_priority(const Thread* const thread);
    static void start(Thread* thread);
*** 681,690 ****
--- 682,698 ----
    Thread* thread = ThreadLocalStorage::thread();
    assert(thread != NULL, "just checking");
    return thread;
  }
  
+ inline Thread* Thread::current_or_null() {
+   if (ThreadLocalStorage::is_initialized()) {
+     return ThreadLocalStorage::thread();
+   }
+   return NULL;
+ }
+ 
  // Name support for threads.  non-JavaThread subclasses with multiple
  // uniquely named instances should derive from this.
  class NamedThread: public Thread {
    friend class VMStructs;
    enum {