text: // Copyright (c) 2021 by Robert Bosch GmbH. All rights reserved.
  // Copyright (c) 2021 by Apex.AI Inc. All rights reserved.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  //
  // SPDX-License-Identifier: Apache-2.0
  
  #include "iceoryx_hoofs/cxx/deadline_timer.hpp"
  
  namespace iox
  {
  namespace cxx
  {
  DeadlineTimer::DeadlineTimer(const iox::units::Duration timeToWait) noexcept
      : m_timeToWait(timeToWait)
      , m_endTime(getCurrentMonotonicTime() + timeToWait)
  {
  }
  
  bool DeadlineTimer::hasExpired() const noexcept
  {
      return getCurrentMonotonicTime() >= m_endTime;
  }
  
  void DeadlineTimer::reset() noexcept
  {
      m_endTime = getCurrentMonotonicTime() + m_timeToWait;
  }
  
  void DeadlineTimer::reset(const iox::units::Duration timeToWait) noexcept
  {
      m_timeToWait = timeToWait;
      reset();
  }
  
  iox::units::Duration DeadlineTimer::remainingTime() const noexcept
  {
      auto currentTime = getCurrentMonotonicTime();
      if (m_endTime > currentTime)
      {
          return m_endTime - currentTime;
      }
      return iox::units::Duration(std::chrono::milliseconds(0));
  }
  
  iox::units::Duration DeadlineTimer::getCurrentMonotonicTime() noexcept
  {
      iox::units::Duration currentTime(std::chrono::steady_clock::now().time_since_epoch());
      return currentTime;
  }
  
  
  } // namespace cxx
  } // namespace iox
  