Examples of com.sun.cldchi.tools.memoryprofiler.jdwp.VMReply

Package com.sun.cldchi.tools.memoryprofiler.jdwp

Examples of com.sun.cldchi.tools.memoryprofiler.jdwp.VMReply

com.sun.cldchi.tools.memoryprofiler.jdwp.VMReply
The VMReply declares interface between transport layer and data providing layer of the memory profiler. It allows reading integet and string values from the packet sent by the VM. The instances of this interface are provided by VMConnection. @see com.sun.cldchi.tools.memoryprofiler.jdwp.VMConnection

  private void update() throws SocketException {
    getClassList();
    getAllData();
    getRoots();
    try {
      VMReply r = _connector.sendReplyCommand(MPGetGlobalData);
      _heap_start =     r.getInt();
      _heap_top =       r.getInt();
      _old_gen_end =    r.getInt();
      _allocation_top = r.getInt();
    }catch(DebugeeException e) {
      reset();
      throw new SocketException(e.getMessage());
    }catch(BoundException e) {
      reset();

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  public JavaClass[] getClassList() throws SocketException {
    _allClasses.clear();
    JavaClass[] result = null;
    try {
      VMReply r = _connector.sendReplyCommand(MPGetClasses);
      int classesCount = r.getInt();
      result = new JavaClass[classesCount];
      for(int i=0 ; i<classesCount ; i++){
        int class_id = (int)r.getInt();
        String class_name = objectTypeNameFromJNI(r.getString());
        JavaClass new_item = new JavaClass(class_id, class_name);
        _allClasses.put(new Integer(class_id), new_item);
        result[i] = new_item;
      }
    } catch (Exception e) {

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    int read = 1;
    int oread = 1;
    _allJavaObjects.clear();
    try {
      while (true) {
        VMReply r = _connector.sendReplyCommand(MPGetHeapData);
        int object_address = r.getInt();
        while (object_address != -1 && object_address != -2) {
          int size = r.getInt();
          int mp_class_id = r.getInt();
          int object_type = mp_class_id >> OBJ_TYPE_OFFSET;
          int stack_number = -1;
          if (object_type == STACK_OBJECT) {
            stack_number = r.getInt();
            read++;
          } 
          int links = r.getInt();
          int[] refs = new int[links];
          HashMap offsets = new HashMap(links);
          if (object_type == STACK_OBJECT) {
            for (int i = 0; i < links; i++) {
              refs[i] = r.getInt();
              int offset = r.getInt();
              Integer cur_offset = (Integer)offsets.get(new Integer(refs[i]));
              if (cur_offset == null || cur_offset.intValue() < offset) {
                offsets.put(new Integer(refs[i]), new Integer(offset));
              }
            }
            read += links;
          } else {
            for (int i = 0; i < links; i++) {
              refs[i] = r.getInt();
            }
          }
          mp_class_id = mp_class_id & 0x7FFFFF;
          JavaClass class_item = (JavaClass)_allClasses.get(new Integer(mp_class_id));
          int class_id = mp_class_id;
          if (class_item != null) {
            class_id = class_item.id;
          }
          if (object_type == JAVA_OBJECT) {
            _allJavaObjects.put(new Integer(object_address), 
               new JavaObject(object_address, class_id, size, refs, JAVA_OBJECT));
          } else if (object_type == STATICS_OBJECT) {
            _allJavaObjects.put(new Integer(object_address), 
               new JavaObject(object_address, class_id, size, refs, STATICS_OBJECT));
          } else if (object_type == STACK_OBJECT) {
            _allJavaObjects.put(new Integer(object_address), 
               new JavaObject(object_address, -1, size, refs, STACK_OBJECT, offsets, stack_number));
          } else if (object_type == VM_OBJECT) {
            _allJavaObjects.put(new Integer(object_address), 
               new JavaObject(object_address, -1, size, refs, VM_OBJECT));
          } else {
            System.out.println("Wrong response from VM! Unknown object type. Skipped!");
          }
          object_address = r.getInt();
          read += 4;
          read += links;
          oread++;
        }         
        if (object_address == -1) break;

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    }
  }


  private void getRoots() throws SocketException {
    try {
      VMReply r = _connector.sendReplyCommand(MPGetRoots);
      int root = r.getInt();
      while (root != -1) {
        Integer key = new Integer(root);
        JavaObject obj = (JavaObject)_allJavaObjects.get(key);
        if (obj != null) {
          obj.setRootDistance(0);
        }
        root = r.getInt();
      }
    } catch (Exception e) {
      reset();
      throw new SocketException(e.getMessage());
    }

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    params[0] = stack_object._stack_id;
    Integer offset = (Integer)stack_object._stack_offsets.get(new Integer(ptr));
    params[1] = offset.intValue();
    String result = null;
    try {
      VMReply reply = _connector.sendReplyCommand(MPVMStackTrace, params);
      result = reply.getString();
    } catch (Exception e) {
      result = "VM connection is broken!";
      reset();
      throw new SocketException(e.getMessage());
    }

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Related Classes of com.sun.cldchi.tools.memoryprofiler.jdwp.VMReply

com.sun.cldchi.tools.memoryprofiler.data.GlobalData

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