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dynamic_reconfigure headers re-generated

asked 2012-05-08 23:30:52 -0500

Bence Magyar gravatar image

updated 2012-05-09 22:49:55 -0500

Hello guys,

I'm experiencing a small but irritating problem with dynamic_reconfigure.

Every single time I run make or rosmake all the reconf header files get re-generated so it causes all my nodes that use them to be re-compiled even though I did not modify any of them.

At first I thought that the problem is with the end .cfg file:

exit(gen.generate(PACKAGE, "dynamic_tutorials", "Tutorials"))

So I made sure that they are all correct but they still get regenerated every single time.

I'm running on Ubuntu 10.04 and ROS Electric.

Anyone faced this problem before?

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Is this with Fuerte or Electric? What operating system?

joq gravatar image joq  ( 2012-05-09 03:36:25 -0500 )edit

I've had this problem in electric. I never did get around to figuring it out, or filing a bug.

Mac gravatar image Mac  ( 2012-05-09 05:44:14 -0500 )edit

Sorry for the trivial mistake, updated post with info.

Bence Magyar gravatar image Bence Magyar  ( 2012-05-09 22:51:47 -0500 )edit

1 Answer

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answered 2012-07-02 00:12:04 -0500

christiank gravatar image


I'm experiencing the same issue. I solved it by adding a guard to the beginning of the .cfg file, which checks whether the *Config.h file was generated after the last modification of the .cfg file. If this is the case the script is terminated without generating any files.

It looks like:

import os

me = os.path.realpath(__file__)
cpp_header = os.path.realpath(os.path.join(os.path.dirname(me), "cpp", "dynamic_tutorials", "TutorialsConfig.h"))

if os.path.exists(cpp_header) and os.path.getmtime(me) < os.path.getmtime(cpp_header):
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Please contact the authors so they can apply this patch to the next version of dynamic_reconfigure.

Bence Magyar gravatar image Bence Magyar  ( 2012-07-04 01:17:36 -0500 )edit
christiank gravatar image christiank  ( 2012-07-05 01:12:33 -0500 )edit

Thanks for the ticket, this will be fixed in the upcoming release of dynamic_reconfigure, if you want you can get it now at

klapow gravatar image klapow  ( 2012-07-07 22:08:18 -0500 )edit

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Asked: 2012-05-08 23:30:52 -0500

Seen: 415 times

Last updated: Jul 02 '12