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How to run a node as a background process?

rosrun

asked 2016-06-06 13:43:55 -0600

icepaka89
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So I am trying to write a program in which a main publisher node will use the system function to run multiple subscriber nodes. I would like to use something like: "rosrun <pkg_name> <node_name> &", however this doesn't work for me and the subscriber node still runs in the same terminal window. How can I change the command so that it executes in the way i described? I can't seem to figure it out. Thanks!!

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answered 2016-06-06 15:19:57 -0600

ahendrix

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Does the system() call block when it executes? If not, then the command is running in the background.

Keep in mind that "background" does not imply spawning a different terminal window or logging to disk by default. The process will use the same terminal as its parent.

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No, even when I put the statement in a system call, the output from the node still appears in the terminal window and I cannot run other nodes

icepaka89 ( 2016-06-06 16:52:52 -0600 )edit

What do you mean by "cannot run other nodes" ? Does a second system() command fail? Does it stop the other node that's already running? Do you expect to be able to run other nodes in the same terminal?

ahendrix ( 2016-06-06 17:34:21 -0600 )edit

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Asked: 2016-06-06 13:43:55 -0600

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Last updated: Jun 06 '16

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How to run a node as a background process?