wait.cpp

// Copyright (c) 2019 Samsung Research America
//
// 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.
 
#include <chrono>
#include <memory>
 
#include "nav2_behaviors/plugins/wait.hpp"
 
namespace nav2_behaviors
{
 
Wait::Wait()
: TimedBehavior<WaitAction>(),
  feedback_(std::make_shared<WaitAction::Feedback>())
{
}
 
Wait::~Wait() = default;
 
ResultStatus Wait::onRun(const std::shared_ptr<const WaitAction::Goal> command)
{
  wait_end_ = node_.lock()->now() + rclcpp::Duration(command->time);
  return ResultStatus{Status::SUCCEEDED, 0, ""};
}
 
ResultStatus Wait::onCycleUpdate()
{
  auto current_point = node_.lock()->now();
  auto time_left = wait_end_ - current_point;
 
  feedback_->time_left = time_left;
  action_server_->publish_feedback(feedback_);
 
  if (time_left.nanoseconds() > 0) {
    return ResultStatus{Status::RUNNING, 0, ""};
  } else {
    return ResultStatus{Status::SUCCEEDED, 0, ""};
  }
}
 
}  // namespace nav2_behaviors
 
#include "pluginlib/class_list_macros.hpp"
PLUGINLIB_EXPORT_CLASS(nav2_behaviors::Wait, nav2_core::Behavior)