strict digraph recv_states {
  start [peripheries=2];
  end [peripheries=2];
  handshake;
  recv_data;
  wait_for_resume;
  wait_for_close;
  close_one;
  close_both;

  node [label="", shape="box", height=0.1, width=0.1];
  close;



  start -> handshake [label="tls"];
  start -> recv_data;

  handshake -> close [label="error"];
  handshake -> recv_data;

  recv_data -> handshake [label="rehandshake"];
  recv_data -> wait_for_resume [label="pause"];
  recv_data -> wait_for_close [label="eof"];
  recv_data -> close [label="error"];

  wait_for_resume -> recv_data;

  wait_for_close -> close;

  close -> close_one [label="duplex"];
  close -> close_both;

  close_one -> end;
  close_both -> end;
  
}