docs: function reservedPort(desired) {
    if (carapace.ports.throw.indexOf(desired) !== -1) {
      this.close();
      //
      // Build fake error
      //
      var err = new Error('EADDRINUSE, Address already in use');
      err.code = 'EADDRINUSE';
      err.syscall = 'bind';
      err.errno = 100;
      this.emit('error', err);
      return true;
    }
    
    return false;
  }