Show when controller action connects to controller (ros ticket #4247)

[ahendrix]

When one of the joint controller actions fails to connect to its controller for more than 30 seconds, it prints a warning:

/u/wim/boxturtle_wg_all/stacks/pr2_controllers/joint_trajectory_action/src/joint_trajectory_action.cpp:JointTrajectoryExecuter:110
Waited for the controller for 30 seconds, but it never showed up.

This happens quite often, because the robot calibration can easily take more than 30 seconds. It would be useful if the action could also print a message when it does connect to the controller. Right now it is not clear if the action is dead or not, because the only thing it prints is the message about the failure to connect to the controller.

This is a boxturtle-only issue I guess.

trac data:

• Owner: sglaser
• Reporter: wim
• Reported at: Tue Apr 27 09:01:26 2010
• URL: https://code.ros.org/trac/wg-ros-pkg/ticket/4247