65 lines
1.5 KiB
C++
65 lines
1.5 KiB
C++
// Copyright 2019 Robert Bosch GmbH
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <memory>
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#include <chrono>
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#include "rclcpp/rclcpp.hpp"
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using namespace std::chrono_literals;
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#define NODE_NAME "test_timer"
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#define TIMER_PERIOD 1ms
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class TimerNode : public rclcpp::Node
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{
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public:
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explicit TimerNode(rclcpp::NodeOptions options)
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: Node(NODE_NAME, options)
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{
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is_done_ = false;
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timer_ = this->create_wall_timer(
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TIMER_PERIOD,
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std::bind(&TimerNode::timer_callback, this));
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}
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private:
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void timer_callback()
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{
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if (is_done_) {
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rclcpp::shutdown();
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} else {
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is_done_ = true;
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}
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}
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rclcpp::TimerBase::SharedPtr timer_;
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bool is_done_;
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};
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int main(int argc, char * argv[])
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{
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rclcpp::init(argc, argv);
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rclcpp::executors::SingleThreadedExecutor exec;
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auto timer_node = std::make_shared<TimerNode>(rclcpp::NodeOptions());
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exec.add_node(timer_node);
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printf("spinning\n");
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exec.spin();
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// Will actually be called inside the timer's callback
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rclcpp::shutdown();
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return 0;
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}
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