B4J Question [RASPBERRY PI] Running non blocking commands

[jmon]

Hello,

With jshell, on raspberryPi, if I run a command like this:

dim sh as Shell
sh.initialize("", "raspistill", Array("-s", "-o", "test%04d.jpg", "&"))

I get an error:

Invalid command line option (&)

The "&" is there to order the command to be non-blocking and to run in the background.

Typing this in putty works:

raspistill -s -o test%04d.jpg &

I tried this and didn't work either:

dim sh as Shell
sh.initialize("", "sudo", Array("raspistill", "-s", "-o", "test%04d.jpg", "&"))

How to add the "&" sign at the end of the command?

Thank you for your help
Jmon

 

[Erel]

You don't need it. The program will run in a different process and will not block your program.

 

[jmon]

Thank you,

so it will run indefinitely if I set the timeout to -1 right? Even if I quit my b4j app?

 

[Erel]

so it will run indefinitely if I set the timeout to -1 right?

Yes.

Even if I quit my b4j app?

Not sure about this one. You will need to test it.