[humble] Add pause and resume service calls for rosbag2 recorder (Backport #1131) #1453
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* feat(recorder): Add pause and resume service calls. Add service calls to pause recording and resume recording. Fixes ros2#1130 Signed-off-by: Rick Shanor <rickshanor@gmail.com> * feat(recorder): pause, resume, and is_paused PR comments. Address PR comments. Add is_paused service. Update tests accordingly. Signed-off-by: Rick Shanor <rickshanor@gmail.com> Signed-off-by: Rick Shanor <rickshanor@gmail.com>
haudren-woven
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MichaelOrlov and
hidmic
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clalancette
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Aug 24, 2023
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The big problem in general with this backport is that it changes ABI by adding members to the Recorder class. Since our policy is to never break ABI in stable distributions, this is a problem.
One way to get around this is to to add in a global map of Recorder pointers to a structure containing the pieces you need. You can see an example of this pattern in ros2/rclcpp#2236 (look for the BackportMembers class).
MichaelOrlov
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MichaelOrlov
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I have found a need to start & stop recording in my Humble installation. I figured that the services already exist in rosbag2_interfaces, so backporting is a very easy job. There were a couple of conflicts to manually resolve, which prevented me from going through Mergify.
Let me know if this is appropriate!