/*
 * Copyright © 2012 Canonical Ltd.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3,
 * as published by the Free Software Foundation.
 *
 * This program 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Authored by: Thomas Guest <thomas.guest@canonical.com>
 *              Daniel van Vugt <daniel.van.vugt@canonical.com>
 */

#ifndef ANBOX_COMMON_WAIT_HANDLE_H_
#define ANBOX_COMMON_WAIT_HANDLE_H_

#include <chrono>
#include <condition_variable>
#include <mutex>

namespace anbox {
namespace common {
struct WaitHandle {
 public:
  WaitHandle();
  ~WaitHandle();

  void expect_result();
  void result_received();
  void wait_for_all();
  void wait_for_one();
  void wait_for_pending(std::chrono::milliseconds limit);

  bool has_result();
  bool is_pending();

 private:
  std::mutex guard;
  std::condition_variable wait_condition;

  int expecting;
  int received;
};
}  // namespace common
}  // namespace anbox

#endif