Jacob Perron 41a99b64d3 Guard against making multiple result requests for a goal handle (#808) ... This fixes a runtime error caused by a race condition when making consecutive requests for the result. Specifically, this happens if the user provides a result callback when sending a goal and then calls async_get_result shortly after. Resolves #783 Signed-off-by: Jacob Perron <jacob@openrobotics.org>		2019-08-07 09:26:19 -07:00
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rclcpp_action	Guard against making multiple result requests for a goal handle (#808)	2019-08-07 09:26:19 -07:00