/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2014-2024,  Regents of the University of California,
 *                           Arizona Board of Regents,
 *                           Colorado State University,
 *                           University Pierre & Marie Curie, Sorbonne University,
 *                           Washington University in St. Louis,
 *                           Beijing Institute of Technology,
 *                           The University of Memphis.
 *
 * This file is part of NFD (Named Data Networking Forwarding Daemon).
 * See AUTHORS.md for complete list of NFD authors and contributors.
 *
 * NFD is free software: you can redistribute it and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.  See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef NFD_TESTS_DAEMON_GLOBAL_IO_FIXTURE_HPP
#define NFD_TESTS_DAEMON_GLOBAL_IO_FIXTURE_HPP

#include "tests/clock-fixture.hpp"

namespace boost::asio {
class io_context;
} // namespace boost::asio

namespace nfd::tests {

/**
 * \brief A fixture providing proper setup and teardown of the global io_context.
 *
 * Every daemon fixture or test case should inherit from this fixture,
 * to have per test case io_context initialization and cleanup.
 */
class GlobalIoFixture
{
protected:
  GlobalIoFixture();

  ~GlobalIoFixture();

  /**
   * \brief Poll the global io_context.
   */
  size_t
  pollIo();

protected:
  /**
   * \brief Reference to the global io_context instance.
   */
  boost::asio::io_context& g_io;
};

/**
 * \brief GlobalIoFixture that also overrides steady clock and system clock.
 */
class GlobalIoTimeFixture : public ClockFixture, public GlobalIoFixture
{
private:
  void
  afterTick() final;
};

} // namespace nfd::tests

#endif // NFD_TESTS_DAEMON_GLOBAL_IO_FIXTURE_HPP