Stopping a node by "Ctrl+C" doesn't update "rosnode list" command's result.

edit

In the usual case this should not happen. If I am not mistaken, the node should unregister with the master when the last NodeHandle goes out of scope, and ros::shutdown() gets called. There might be a problem with the way your code is written which prevents this from happening. On the flip side, for most applications, a node that does not unregister should not constitute a problem.

To ensure that this is not a problem specific to the node you have written, try out some of the nodes already available in roscpp_tutorials. Try the following commands in order:

1. Start roscore
2. rosnode list
3. rosrun roscpp_tutorials talker
4. rosnode list
5. Ctrl+C the talker node
6. rosnode list

The rosnode list output for me looks something like this:

piyushk@piyushk-laptop:~$ rosnode list
/rosout
piyushk@piyushk-laptop:~$ rosnode list
/rosout
/talker
piyushk@piyushk-laptop:~$ rosnode list
/rosout

If your output looks similar to that above, it may be a problem in the code you've written. If not, we can try and debug the problem.

Piyush