55 
  56   Semaphore _semaphore;
  57   bool _thread_in_process_handshake;
  58 
  59   bool claim_handshake_for_vmthread();
  60   bool vmthread_can_process_handshake(JavaThread* target);
  61 
  62   void clear_handshake(JavaThread* thread);
  63   void cancel_inner(JavaThread* thread);
  64 
  65   void process_self_inner(JavaThread* thread);
  66 public:
  67   HandshakeState();
  68 
  69   void set_operation(JavaThread* thread, HandshakeOperation* op);
  70 
  71   bool has_operation() const {
  72     return _operation != NULL;
  73   }
  74 
  75   void cancel(JavaThread* thread) {
  76     if (!_thread_in_process_handshake) {
  77       FlagSetting fs(_thread_in_process_handshake, true);
  78       cancel_inner(thread);
  79     }
  80   }
  81 
  82   void process_by_self(JavaThread* thread) {
  83     if (!_thread_in_process_handshake) {
  84       FlagSetting fs(_thread_in_process_handshake, true);
  85       process_self_inner(thread);
  86     }
  87   }

  88   void process_by_vmthread(JavaThread* target);
  89 };
  90 
  91 #endif // SHARE_VM_RUNTIME_HANDSHAKE_HPP

  55 
  56   Semaphore _semaphore;
  57   bool _thread_in_process_handshake;
  58 
  59   bool claim_handshake_for_vmthread();
  60   bool vmthread_can_process_handshake(JavaThread* target);
  61 
  62   void clear_handshake(JavaThread* thread);
  63   void cancel_inner(JavaThread* thread);
  64 
  65   void process_self_inner(JavaThread* thread);
  66 public:
  67   HandshakeState();
  68 
  69   void set_operation(JavaThread* thread, HandshakeOperation* op);
  70 
  71   bool has_operation() const {
  72     return _operation != NULL;
  73   }
  74 







  75   void process_by_self(JavaThread* thread) {
  76     if (!_thread_in_process_handshake) {
  77       FlagSetting fs(_thread_in_process_handshake, true);
  78       process_self_inner(thread);
  79     }
  80   }
  81 
  82   void process_by_vmthread(JavaThread* target);
  83 };
  84 
  85 #endif // SHARE_VM_RUNTIME_HANDSHAKE_HPP