text: // Copyright 2015 Open Source Robotics Foundation, Inc.
  //
  // 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 "rclcpp/any_executable.hpp"
  
  using rclcpp::AnyExecutable;
  
  AnyExecutable::AnyExecutable()
  : subscription(nullptr),
    timer(nullptr),
    service(nullptr),
    client(nullptr),
    callback_priority(-1),
    callback_group(nullptr),
    node_base(nullptr)
  {}
  
  AnyExecutable::~AnyExecutable()
  {
    // Make sure that discarded (taken but not executed) AnyExecutable's have
    // their callback groups reset. This can happen when an executor is canceled
    // between taking an AnyExecutable and executing it.
    if (callback_group) {
      callback_group->can_be_taken_from().store(true);
    }
  }
  