On Thu, May 27, 2010 at 4:03 PM, Mike Purvis wrote: > Oh, bummer. Is this functionality on the roadmap? Yes, unfortunately it didn't make it in for C-Turtle. > Would it be a reasonable substitute to have a global topic to notify for > config changes, which would allow the nodes to alert each other to re-check > the param server? Or am I overthinking the problem? You may wish to investigate dynamic_reconfigure, which is an architecture for manipulating parameter-server-based configuration. - Ken > Mike > > > On 27 May 2010 18:54, Ken Conley wrote: >> >> Hi Mike, >> >> This feature isn't available in rospy currently. >> >>  - Ken >> >> On Thu, May 27, 2010 at 3:19 PM, Mike Purvis >> wrote: >> > Hey all, >> > I'm getting started on some work involving Parameter Server, and have a >> > few >> > quick questions regarding the rospy interface. >> > According to the documentation of the XMLRPC API, there's a subscription >> > functionality that I'd like to take advantage of, to avoid polling for >> > configuration updates: >> > http://www.ros.org/wiki/ROS/Parameter%20Server%20API >> > The rospy overview docs don't seem to include this method. >> > http://www.ros.org/wiki/rospy/Overview/Parameter%20Server >> > However, looking at the source in paramserver.py, there's clearly the >> > following method defined: >> > def subscribe_param(self, key, registration_args) >> > But it's not clear what the "registration args" tuple is. It seems to >> > end up >> > at the following call, inside masterdata.py: >> > def register_param_subscriber(self, param, caller_id, caller_api) >> > Is there an example somewhere of how to register the appropriate >> > callback to >> > use subscribeParam from python? >> > Thanks, >> > Mike Purvis >> > _______________________________________________ >> > ros-users mailing list >> > ros-users@code.ros.org >> > https://code.ros.org/mailman/listinfo/ros-users >> > >> > >> _______________________________________________ >> ros-users mailing list >> ros-users@code.ros.org >> https://code.ros.org/mailman/listinfo/ros-users > > > _______________________________________________ > ros-users mailing list > ros-users@code.ros.org > https://code.ros.org/mailman/listinfo/ros-users > >