484 class VM_Exit: public VM_Operation {
 485  private:
 486   int  _exit_code;
 487   static volatile bool _vm_exited;
 488   static Thread * volatile _shutdown_thread;
 489   static void wait_if_vm_exited();
 490  public:
 491   VM_Exit(int exit_code) {
 492     _exit_code = exit_code;
 493   }
 494   static int wait_for_threads_in_native_to_block();
 495   static int set_vm_exited();
 496   static bool vm_exited()                      { return _vm_exited; }
 497   static Thread * shutdown_thread()            { return _shutdown_thread; }
 498   static void block_if_vm_exited() {
 499     if (_vm_exited) {
 500       wait_if_vm_exited();
 501     }
 502   }
 503   VMOp_Type type() const { return VMOp_Exit; }

 504   void doit();
 505 };
 506 
 507 class VM_PrintCompileQueue: public VM_Operation {
 508  private:
 509   outputStream* _out;
 510 
 511  public:
 512   VM_PrintCompileQueue(outputStream* st) : _out(st) {}
 513   VMOp_Type type() const { return VMOp_PrintCompileQueue; }
 514   Mode evaluation_mode() const { return _safepoint; }
 515   void doit();
 516 };
 517 
 518 #if INCLUDE_SERVICES
 519 class VM_PrintClassHierarchy: public VM_Operation {
 520  private:
 521   outputStream* _out;
 522   bool _print_interfaces;
 523   bool _print_subclasses;

 484 class VM_Exit: public VM_Operation {
 485  private:
 486   int  _exit_code;
 487   static volatile bool _vm_exited;
 488   static Thread * volatile _shutdown_thread;
 489   static void wait_if_vm_exited();
 490  public:
 491   VM_Exit(int exit_code) {
 492     _exit_code = exit_code;
 493   }
 494   static int wait_for_threads_in_native_to_block();
 495   static int set_vm_exited();
 496   static bool vm_exited()                      { return _vm_exited; }
 497   static Thread * shutdown_thread()            { return _shutdown_thread; }
 498   static void block_if_vm_exited() {
 499     if (_vm_exited) {
 500       wait_if_vm_exited();
 501     }
 502   }
 503   VMOp_Type type() const { return VMOp_Exit; }
 504   bool doit_prologue();
 505   void doit();
 506 };
 507 
 508 class VM_PrintCompileQueue: public VM_Operation {
 509  private:
 510   outputStream* _out;
 511 
 512  public:
 513   VM_PrintCompileQueue(outputStream* st) : _out(st) {}
 514   VMOp_Type type() const { return VMOp_PrintCompileQueue; }
 515   Mode evaluation_mode() const { return _safepoint; }
 516   void doit();
 517 };
 518 
 519 #if INCLUDE_SERVICES
 520 class VM_PrintClassHierarchy: public VM_Operation {
 521  private:
 522   outputStream* _out;
 523   bool _print_interfaces;
 524   bool _print_subclasses;