The master API will provide a list of known nodes (getSystemState). It
is like DNS, so it does not store connectivity. If you want to access
data structures, the rosmaster code is open source.

 - Ken

On Tue, Nov 16, 2010 at 5:42 AM, safdar_zaman <safdaraslam@yahoo.com> wrote:
>
> hi Conley,
> ok thanks, but i think there must be some data structure (linked list etc.)
> where ROS stores its current running nodes? and each time any node(s) quit
> ROS updates that data structure. may be?
> regards
> --
> View this message in context: http://ros-users.122217.n3.nabble.com/graph-of-nodes-tp1905890p1910908.html
> Sent from the ROS-Users mailing list archive at Nabble.com.
> _______________________________________________
> ros-users mailing list
> ros-users@code.ros.org
> https://code.ros.org/mailman/listinfo/ros-users
>