src/hotspot/share/prims/whitebox.cpp

rev 57079 : [mq]: handshake-logs

*** 1993,2033 ****
  WB_END
  
  #endif // INCLUDE_CDS
  
  WB_ENTRY(jint, WB_HandshakeWalkStack(JNIEnv* env, jobject wb, jobject thread_handle, jboolean all_threads))
!   class TraceSelfClosure : public ThreadClosure {
      jint _num_threads_completed;
  
!     void do_thread(Thread* th) {
!       assert(th->is_Java_thread(), "sanity");
!       JavaThread* jt = (JavaThread*)th;
        ResourceMark rm;
  
        jt->print_on(tty);
        jt->print_stack_on(tty);
        tty->cr();
        Atomic::inc(&_num_threads_completed);
      }
  
!   public:
!     TraceSelfClosure() : _num_threads_completed(0) {}
  
      jint num_threads_completed() const { return _num_threads_completed; }
    };
!   TraceSelfClosure tsc;
  
    if (all_threads) {
!     Handshake::execute(&tsc);
    } else {
      oop thread_oop = JNIHandles::resolve(thread_handle);
      if (thread_oop != NULL) {
        JavaThread* target = java_lang_Thread::thread(thread_oop);
!       Handshake::execute(&tsc, target);
      }
    }
!   return tsc.num_threads_completed();
  WB_END
  
  //Some convenience methods to deal with objects from java
  int WhiteBox::offset_for_field(const char* field_name, oop object,
      Symbol* signature_symbol) {
--- 1993,2032 ----
  WB_END
  
  #endif // INCLUDE_CDS
  
  WB_ENTRY(jint, WB_HandshakeWalkStack(JNIEnv* env, jobject wb, jobject thread_handle, jboolean all_threads))
!   class TraceSelfHandshake : public HandshakeOperation {
      jint _num_threads_completed;
  
!    public:
!     const char* name() { return "WB_TraceSelf"; }
!     void do_thread(JavaThread* jt) {
        ResourceMark rm;
  
        jt->print_on(tty);
        jt->print_stack_on(tty);
        tty->cr();
        Atomic::inc(&_num_threads_completed);
      }
  
!     TraceSelfHandshake() : _num_threads_completed(0) {}
  
      jint num_threads_completed() const { return _num_threads_completed; }
    };
!   TraceSelfHandshake ts_hs;
  
    if (all_threads) {
!     Handshake::execute(&ts_hs);
    } else {
      oop thread_oop = JNIHandles::resolve(thread_handle);
      if (thread_oop != NULL) {
        JavaThread* target = java_lang_Thread::thread(thread_oop);
!       Handshake::execute(&ts_hs, target);
      }
    }
!   return ts_hs.num_threads_completed();
  WB_END
  
  //Some convenience methods to deal with objects from java
  int WhiteBox::offset_for_field(const char* field_name, oop object,
      Symbol* signature_symbol) {