Common callback function

asked 2013-06-26 01:14:05 -0600

Verane
25 ●5 ●5 ●8

updated 2014-01-28 17:17:02 -0600

ngrennan
1 ●1 ●1

Hi. I've a c++ thread that is checking every x seconds if some robots are active. For that, every robot publishes a topic (/robot1/status). So if the robot is publishing, I know that it is alive.

For that reason, my thread subscribes to all these "status" topics. Is it possible to have a common callback for all the topics or I need one function to every one topic?

Thanks.

edit retag flag offensive close merge delete

add a comment

1

answered 2013-06-26 02:40:15 -0600

Ben_S

2500 ●14 ●29 ●53

updated 2013-06-26 05:23:48 -0600

Yes, that is possible. Also have a look at this answer if you want your callback to have a custom parameter, to know which topic (/robot) is the source.

Edit:

You could use only one topic and let every robot send messages with a unique id to it.

edit flag offensive delete link

Comments

Thanks. I'll try with std::bind instead of boost::bind.

Verane ( 2013-06-26 03:54:25 -0600 )edit

add a comment

0

answered 2013-06-26 04:32:34 -0600

Verane
25 ●5 ●5 ●8

But, Is there another way to know if some robot is alive without using a specific topic for each one?

edit flag offensive delete link

Comments

Please dont use answers to extend your question. I will edit my answer.

Ben_S ( 2013-06-26 05:22:19 -0600 )edit

add a comment

Common callback function

2 Answers

Comments

Comments

Question Tools

Stats

Related questions

Common callback function edit

2 Answers

Comments

Comments

Question Tools

Stats

Related questions

Common callback function