Migrating from RCUTILS to RCLCPP for Enhanced /rosout Log Publishing

[h-sh-h]

Hi
The current logging procedure uses RCUTILS, which only logs to the console and not to the /rosout topic. Similar related issue Here.

The following changes are required to migrate the logging to RCLCPP.

1. Add following line to ros_compat.cpp

clcpp::Node::SharedPtr node;

2. Remove RCUTILS macros from ros_compat.h and replace RCLCPP macros

// #define ROS_INFO(...)	RCUTILS_LOG_INFO_NAMED(__node_name_.c_str(), __VA_ARGS__)
// #define ROS_DEBUG(...)	RCUTILS_LOG_DEBUG_NAMED(__node_name_.c_str(), __VA_ARGS__)
// #define ROS_ERROR(...)   RCUTILS_LOG_ERROR_NAMED(__node_name_.c_str(), __VA_ARGS__)

#define ROS_INFO(...)	RCLCPP_INFO(node->get_logger(), __VA_ARGS__)
#define ROS_DEBUG(...)	RCLCPP_DEBUG(node->get_logger(), __VA_ARGS__)
#define ROS_ERROR(...)   RCLCPP_ERROR(node->get_logger(), __VA_ARGS__)

3. Since RCLCPP needs node to get logger from, the node should be defined as extern variable in ros_compat.h

extern std::string __node_name_;
extern rclcpp::Node::SharedPtr node; // This line is added

4. Modify ROS_CREATE_NODE macro in ros_compat.h (remove auto keyword)

#define ROS_CREATE_NODE(name)							\
		rclcpp::init(argc, argv);					\
		node = rclcpp::Node::make_shared(name, "/" name); \
		__node_name_ = name; \
		__global_clock_ = std::make_shared<rclcpp::Clock>(RCL_ROS_TIME);

After these changes, the logs are now forwarded to both console and /rosout.

Unfortunately, I don't have enough time to test the entire package after this modification to check for potential issues. Therefore, I am leaving this note here to inform others.

Thanks