function DH_closeListener() {
    this._checkInit();

    if (!this._listener) {
      return false;
    }

    this._listener.close();
    this._listener = null;

    return true;
  }
/**
   * Close a previously-opened TCP listener.
   */
Close a previously-opened TCP listener.
Close a previously - opened TCP listener .
function DH_closeListener() {
    this._checkInit();
    if (!this._listener) {
      return false;
    }
    this._listener.close();
    this._listener = null;
    return true;
  }
function DH_closeListener ( ) { this . _checkInit ( ) ; if ( ! this . _listener ) { return false ; } this . _listener . close ( ) ; this . _listener = null ; return true ; }
Close a previously-opened TCP listener.
Close a previously - opened TCP listener .