Status

public class Status {

  public int index ;


  // Blocking Send and Receive operations

  public int getCount(Datatype datatype) {...}

  public int getSource() {...}
  public int getTag() {...}

  // Nonblocking communication

  public int getIndex() {...}

  // Probe and Cancel

  public boolean testCancelled() {...}


  // Derived datatypes

  public int getElements(Datatype datatype) {...}

  ...
}