[maemo-developers] Shepherd on Maemo 5 ?

[From: Sarah Newman]

I hacked together a perl script with a similar goal but it used SIGSTOP 
when the battery got too low instead of killing the process.  I didn't 
use it very much and I don't know if that's a viable solution for most 
applications.  However if that does work for the app, that's probably 
better than killing it outright.

Additionally there is a signal SIGPWR which is supposed to be used when 
a battery is running low, but I doubt that is used very much.

The solution you have I would call power profiles but at the application 
level in addition to the system level.  As a user, I think this 
absolutely should be available if it isn't already in Fremantle, 
preferably with a GUI normal people can use.

Attila Csipa wrote:
> A RFC for people who know details about Fremantle's power aspect:
> 
> I wrote a python script called Shepherd for my Diablo N810, basically a 
> glorified CRON that has not just time, but a power and connectivity axis, too. 
> This means you can define for various processes:
> 
>     * hours allowed
>     * connection type allowed (I guess you could define exact connections, but 
> I never got that far)
>     * power requirements (plugged in, or a minimum % of battery)
>     * user inactivity (also started to implement, but never actually finished)
> 
> I used it for a couple of things... Flipclock (turn on if charging), 
> transmission (turn on if charging and on WLAN between 2AM and 8AM) and killing 
> maps if battery gets below 25%. It's very rudimentary, no GUI or other magic - 
> it just launches the app if it is not already running and conditions are met, 
> and kills it if they aren't (but only if they were started by the shepherd 
> app). 
> 
> Now, my question for people already working with Fremantle would be whether it 
> already includes similar scheduling/battery/bill saving functionality (or 
> parts of it) and if you think a script like this would be interesting to get 
> ported to Fremantle and get a proper GUI ?
> 
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