[IronPython] Is it possible to set a maximum loop size for scripts?
fuzzyman at voidspace.org.uk
Sat Apr 18 14:40:28 CEST 2009
Alex News wrote:
> In the general case this isn't possible:
Well it's not strictly a halting problem. The question isn't whether it
will *ever* terminate but just is it taking too long.
IronPython doesn't include this functionality built in but it would be
*possible* (theoretically) to count loops. I don't think it is a very
useful approach though - a very tight loop can execute thousands of
times in a second.
> Perhaps some sort of timeout logic would work for you? I.e. kill the
> script if it is still running after some predetermined amount of time.
> I do not know if IronPython has any such functionality built in, but
> it should be easy enough to roll your own.
I agree - spin the code up in its own thread and kill it if it doesn't
end within a preset maximum time.
> On 4/18/09, theoobe <omgomgomg at f2s.com> wrote:
>> I have a C# application with IronPython scripting. I wonder, is it possible
>> to prevent users from creating infinite loops in their scripts?
>> So for example, if a script is executed which contains a loop, and loop is
>> infinate, would it be possible for my C# application to detect this, perhaps
>> by having a maximum loop cycle count? Thus preventing my application from
>> I've tried googling around on this subject but I've had no joy. Maybe what
>> I'm asking for isn't possible?
>> Thanks alot!
>> View this message in context: http://www.nabble.com/Is-it-possible-to-set-a-maximum-loop-size-for-scripts--tp23084739p23084739.html
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