[PD] watchdog

[Jack]

Hey list !

Le 03/05/2018 à 09:42, Roman Haefeli a écrit :
> On Thu, 2018-05-03 at 06:29 +0200, michael strohmann wrote:
>> Hello, 
>> i wonder if it is possible to setup something on raspberry, so that
>> the puredata-watchdog will restart pd-0.48.0 automatically?
>> where could i look up the mechanics of this, unfortunatly i am not a
>> unix crack…
> 
> Are you referring to the pd-watchdog binary, that comes with puredata-
> core? Is your Raspberry Pi running Raspbian?
> 
> From what I understand, the purpose of the pd-watchdog is to pause Pd
> in regular intervals when running in real-time mode. I think this is
> measure to prevent Pd from locking up the system. Assume you
> accidentally trigger an [until] without a stopping mechanism, thanks to
>  pd-watchdog you're still able to move the mouse and quit Pd.
> 
> Is your goal to make sure that Pd is running at any time, so that it is
> started again as soon as it stops?  Maybe you can achieve something
> like this wit a shell script. I haven't tested this, but it might give
> you an idea how to make it work:
> 
> ---
> #!/bin/sh
> 
> while true
> do 
>   # We start pd and send detach it from the terminal ('&')
>   /usr/bin/pd -open yourpatch & 
> 
>   # we catch pd's process id
>   pdpid=$!
> 
>   # now let's wait for the process to terminate
>   wait $pdpid
>   
>   # once pd terminates, we start another iteration
>   # of our while-loop
> done

I will do something like :

while true
do
    pd -open yourpatch # if pd crash the script continue to "sleep 1"
and a new loop start
    sleep 1
done

++

Jack



> ---
> 
> Roman
> 
> 
> 
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