src/hotspot/share/runtime/thread.hpp

rev 49541 : 8198756: Lazy allocation of compiler threads
Reviewed-by: kvn

@@ -2037,16 +2037,18 @@
   CompileTask* volatile _task;  // print_threads_compiling can read this concurrently.
   CompileQueue*         _queue;
   BufferBlob*           _buffer_blob;
 
   AbstractCompiler*     _compiler;
+  TimeStamp             _idle_time;
 
  public:
 
   static CompilerThread* current();
 
   CompilerThread(CompileQueue* queue, CompilerCounters* counters);
+  ~CompilerThread();
 
   bool is_Compiler_thread() const                { return true; }
 
   virtual bool can_call_java() const;
 

@@ -2072,10 +2074,15 @@
     // Set once, for good.
     assert(_log == NULL, "set only once");
     _log = log;
   }
 
+  void start_idle_timer()                        { _idle_time.update(); }
+  jlong idle_time_millis() {
+    return TimeHelper::counter_to_millis(_idle_time.ticks_since_update());
+  }
+
 #ifndef PRODUCT
  private:
   IdealGraphPrinter *_ideal_graph_printer;
  public:
   IdealGraphPrinter *ideal_graph_printer()           { return _ideal_graph_printer; }