RE: infinity loop / recursion

[Thijs Schreijer <thijs@...>]

> -----Original Message-----
> From: lua-l-bounces@lists.lua.org [mailto:lua-l-bounces@lists.lua.org] On
> Behalf Of Philipp Kraus
> Sent: maandag 26 augustus 2013 7:39
> To: list Lua mailing
> Subject: infinity loop / recursion
> 
> Hello,
> 
> I'm using LUA for a simulation on a cluster system, so my user can define
> their own scripts. In some cases there exists a infinite loop or infinity
> recursion in the LUA code so the simulation does not stop anymore.
> My idea is to create a maximum execution time (like PHP) with a watchdog
> (I don't use a formal verification of the code e.g. wp-calculus). Each
> script has got a defined function which is called by my C++
> class, so I would like to send the LUA script a "warning" that the max.
> execution time is reached, but if the script does not stop, the C++ side
> should stop the script.
> 
> Can I / How can I stop a running script from C side?
> Do you think it is a good idea to send a warning first, because the script
> does not use threads, so IMHO the warning can not be handled by the
> script?
> I hope for some ideas
> 
> Thanks
> 
> Phil
> 

Have a look at this code [1] for some ideas, though this is Lua only.

Thijs


As a side note: Lua is not an acronym, it's a name, so not allcaps. Makes me wonder where the watchdogs are? Usually others on this list beat me to this :)

[1] https://github.com/Tieske/corowatch