Why do we need add_publisher and callback_group ?

asked 2021-02-15 04:04:02 -0500

BhanuKiran.Chaluvadi gravatar image

updated 2021-02-15 04:16:03 -0500

Hi,

I came across node_topics.hpp

And Couldn't understand what is a callback_group in add_publisher function and why do we need it ? If some one is kind enough to explain or provide an online reference is greatly appreciated.

Thanks

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