[IronPython] how to generate multiple concurrent scriptignengines?
m.schaber at 3s-software.com
Wed Apr 20 08:23:52 CEST 2011
You can re-read the thread at http://lists.ironpython.com/pipermail/users-ironpython.com/.
The fastest possibility is:
- Fetch the IronPython source.
- Patch PythonContext.GetEqualSite yourself according to the description in the thread.
- Use your own compiled version.
Von: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] Im Auftrag von surangika ranathunga
Gesendet: Dienstag, 19. April 2011 04:28
An: Discussion of IronPython; Jeff Hardy
Betreff: Re: [IronPython] how to generate multiple concurrent scriptignengines?
Sorry I missed the posts on this thread. This is the code that caused me the problem (I posted this in the first post of the thread)
So according to your mails, I take that this is due to a bug in the ironpython code. Is there a way I can have some alternative work-out, something that I can do through my code? (i'm in kind of a hury to finish the project :S )
ScriptEngine engine = Python.CreateEngine();
ScriptRuntime runtime = engine.Runtime;
ScriptScope scope = runtime.CreateScope();
ops = engine.Operations;
ScriptSource source = engine.CreateScriptSourceFromFile("ironpython.py");
string class_param = rule;
object parameters = new object;
parameters = class_param;
object klass = scope.GetVariable("model_checker");
object instance = ops.Invoke(klass, parameters);
method = ops.GetMember(instance, "check_model");
catch (Exception e)
--- On Thu, 14/4/11, Jeff Hardy <jdhardy at gmail.com <mailto:jdhardy at gmail.com> > wrote:
From: Jeff Hardy <jdhardy at gmail.com <mailto:jdhardy at gmail.com> >
Subject: Re: [IronPython] how to generate multiple concurrent scriptign engines?
To: "Discussion of IronPython" <users at lists.ironpython.com <mailto:users at lists.ironpython.com> >
Cc: "surangika ranathunga" <lady_radsu at yahoo.com <mailto:lady_radsu at yahoo.com> >
Received: Thursday, 14 April, 2011, 7:35 AM
As long as you have a ScriptScope per thread, you should be able to
share the ScriptEngine & Runtime between threads.
What is the exception that you are getting? If it's a GUI program,
remember that UI elements can only be manipulated from the main
On Thu, Apr 14, 2011 at 1:02 AM, surangika ranathunga
<lady_radsu at yahoo.com <http://firstname.lastname@example.org> > wrote:
> I am using Ironpython to connect to a legacy python code from C#.
> I am not fully familiar with Ironpython, but managed to get it working for a single-threaded application.
> This is how I implemented this:
> ScriptEngine engine = Python.CreateEngine();
> ScriptRuntime runtime = engine.Runtime;
> ScriptScope scope = runtime.CreateScope();
> ops = engine.Operations;
> ScriptSource source = engine.CreateScriptSourceFromFile("ironpython.py");
> string class_param = rule;
> object parameters = new object;
> parameters = class_param;
> object klass = scope.GetVariable("model_checker");
> object instance = ops.Invoke(klass, parameters);
> method = ops.GetMember(instance, "check_model");
> Now I want to make my application multi-threaded, and I want to have concurrently running scripting engines. Essentially, these engines should access the same underlying python code, and hence these scripting engines are identical to each other.
> Without any change, the above code works fine for most of the time for a multi-threaded application. However, there is an exception that appears from time to time, and I suspect that it is due to a concurrency issue.
> Is there anything specific that I should do to generate multiple scripting engines running in separate threads without interfering with each other?
> any ideas greatly appreciated
> Users mailing list
> Users at lists.ironpython.com <http://nz.mc1102.mail.yahoo.com/mc/compose?to=Users@lists.ironpython.com>
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