exception Shutdown_error of Ssl.ssl_error
val get_shutdown : Ssl.socket -> bool * bool
val get_rbio_eof : Ssl.socket -> bool
val single_shutdown : Ssl.socket -> unit
val single_read : Ssl.socket -> string -> int -> int -> int
val single_write : Ssl.socket -> string -> int -> int -> int
type ssl_mode =
  Ssl_exts.ssl_mode = {
  enable_partial_write : bool;
  accept_moving_write_buffer : bool;
  auto_retry : bool;
}
val get_mode : Ssl.socket -> ssl_mode
val set_mode : Ssl.socket -> ssl_mode -> unit