Call a function on new subscription data outside callback function?

asked 2016-02-24 08:08:55 -0500

ros_geller gravatar image


I am trying to call a function to perform some calculations whenever one of my subscriptions get new data, but i don't want to call the function inside my callback function since the calculations could take longer than the timestep of the subscription.

Is there a notifier or something similar that i could use that lets me know when new data has arrived from a particular subscription?

I was considering just doing this:


But this would call my function whenever any of my subscriptions get new data.

I have a feeling there is an easy way about doing this, but I'm stuck at the moment.

All and any help is appreciated.

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