options.h

/*
 * Copyright (C) 2016-2017, 2022, 2024 Kernkonzept GmbH.
 * Author(s): Jean Wolter <jean.wolter@kernkonzept.com>
 *            Manuel von Oltersdorff-Kalettka <manuel.kalettka@kernkonzept.com>
 *
 * License: see LICENSE.spdx (in this directory or the directories above)
 */
#pragma once
 
#include <memory>
#include <vector>
#include <cerrno>
#include <climits>
 
#include <l4/re/dataspace>
 
bool
parse_int_optstring(char const *optstring, int *out);
 
class Options
{
  using Ds_vector = std::vector<L4::Cap<L4Re::Dataspace>>;
public:
  int get_max_ports() const
  { return _max_ports; }
 
  int get_virtq_max_num() const
  { return _virtq_max_num; }
 
  int get_portq_max_num() const
  { return _portq_max_num; }
 
  int get_request_timeout() const
  { return _request_timeout; }
 
  int assign_mac() const
  { return _assign_mac; }
 
  static Options const *
  parse_options(int argc, char **argv,
                std::shared_ptr<Ds_vector> trusted_dataspaces);
  static Options const *get_options();
 
private:
  int _max_ports = 5;
  int _virtq_max_num = 0x100; // default value for data queues
  int _portq_max_num = 50;    // default value for port queues
  int _request_timeout = 1 * 1000 * 1000; // default packet timeout 1 second
  bool _assign_mac = false;
 
  int parse_cmd_line(int argc, char **argv,
                     std::shared_ptr<Ds_vector> trusted_dataspaces);
};