What is executed when we run roscore

asked 2019-01-11 03:01:51 -0500

Rasika gravatar image

Hello,

I am using ROS kinetic with Ubuntu 16.04 on a virtual machine.

I want to know what is the exact role of the rosmaster package in ros_comm metapackage?

I know that the client libraries roscpp and rospy interact with master through master-api. I want to know what is executed when we run roscore.

It will be very helpful to understand the concept of Master. Thanks in advance

Rasika Wagh

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Just making sure: have you seen wiki/ROS/Concepts and specifically wiki/Master? If so and you have further questions, can you please clarify?

gvdhoorn gravatar image gvdhoorn  ( 2019-01-11 03:20:18 -0500 )edit

Please also refer to older Q&As about this topic, such as #q32597, #q218783 and #q37965 (just a random few).

gvdhoorn gravatar image gvdhoorn  ( 2019-01-11 03:22:06 -0500 )edit

Thanks for a quick reply. The rosmaster package is implemented in python. Is there a similar implementation in C++? I could gather there is a java implementation of the master from other Q&A topics.

Rasika gravatar image Rasika  ( 2019-01-11 03:42:53 -0500 )edit

That would seem to be a very different question from your original one.

But: no, afaik there is no roscore implementation in C++. And the one in rosjava you refer to is a limited one.

gvdhoorn gravatar image gvdhoorn  ( 2019-01-11 03:44:58 -0500 )edit

I am sorry, I phrased my question wrong. I want to know when we run roscore, we use the modules from rosmaster package. Is this understanding correct?

Rasika gravatar image Rasika  ( 2019-01-11 04:01:20 -0500 )edit

Thank you. Now it is much clearer for me.

Rasika gravatar image Rasika  ( 2019-01-11 04:35:33 -0500 )edit
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