Retrieve package and binary/script of running ROS node [closed]
rosgraph and other tools in ros_comm provide access to much data, but there are two pieces of data I cannot figure out how to access.
In https://github.com/ros/ros_comm/blob/... , roslaunch defines a Node object that has the package name and the source file of node stored as attributes
questions:
- Does "roscore" store this information in a centralized place, or is this only used for start up?
- Is the same information available for nodes started with "rosrun"
- How can I query this information using the remote tools (e.g. XMLRPC via rosgraph)
- Given a running ros deployment, is there any way to find out what package and file a running node is from?
Just a comment, as I'm not 100% sure it's all correct:
ps -p $PID_OF_ROS_NODE -o argsand process that. But that's not really an answer I feel. #q271777 and #q271776 show how to use these APIs with Python)And by this:
I guess you mean the binary or the script? The source (for compiled languages) would be useless, as it typically cannot be executed directly.
If your last question is actually what you're after, I believe your question is a duplicate of #q162251.
@gvdhoorn Thank you for reply. These were the answers I expected based on my research, but wanted to make sure I didn't miss something. Your linked questions were helpful.
Assuming #q162251 answers this, I'm closing your question as a duplicate.