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Calling other callback from callback class

asked 2013-08-15 23:42:12 -0500

hvn gravatar image

Hi,

I'm using the callback class like class X{ callback(){} X(){ros::publisher sub1 = n.subscribe(&callback); callback();} run()};

but can you do from this callback method: callback(){ ros::publisher sub2 = n.subscribe(&callback2); callback2():}. I couldn't find about this.

I hope the question is clear. Thanks.

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answered 2013-08-15 23:59:50 -0500

dornhege gravatar image

Your code is a bit fuzzy and won't compile, but in principle yes, you can do all of that.

A callback is just a method that you can call manually if you need to. You can also create subscriptions whenever you want.

There is only one flaw in your code: The subscribers/publishers are declared locally, so once the function is done, they will be destroyed.

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You say the code won't compile. Assuming you don't mean my example code (which indeed won't compile), can you please explain why ?

hvn gravatar image hvn  ( 2013-08-16 00:12:25 -0500 )edit

For example, you're assigning a publisher to the result of a subscribe call...

dornhege gravatar image dornhege  ( 2013-08-16 03:46:17 -0500 )edit

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Asked: 2013-08-15 23:42:12 -0500

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Last updated: Aug 15 '13