Re: [Jython-users] Kill/stop the Jython interpreter

[Diez B. R. <de...@we...>]

Badal, Chris F wrote:
>  
> Hello everybody,
> 
> I have embedded the Jython interpreter in an app of mine, and allow the
> user to type Jython scripts directly into it.
> 
> The problem is that sometimes the user will do something like the
> following:
> 
> =============================
> i=0
> 
> while i < 10:
>     print "Hello"
>     yoyo = i+1
> ============================
> 
> The problem is that the above is an infinite loop, and never returns. 
> The user must kill the entire app in order to stop the script from
> executing.
> 
> Does anyone know what command can stop/kill just the Jython interpreter?



Start the interpreter in it's own thread - and kill that thread. But be 
aware that this is not recommended. You have been warned.

Another option is to install a trace hook. Then you can stop the app 
whenever you want. But it's a major performance penalty.

The third and safest option is to use a second process - but then you 
need a IPC mechansim like RMI to access you're application objects.

So - you have to chose which painful road you'd take :)

Diez