[IronPython] Embedding IronPython

[Miha Valencic]

We're doing something similar with IPY 1.1 and it works so far. Basically,
we use IP for "content templating" and each request executes a script with
certain variables.

I don;t know if it is really thread safe, but we've had no issues.

hth,
  Miha.

2008/12/30 Michael Foord <fuzzyman at voidspace.org.uk>

> Hello Josh,
>
> Sorry for the delayed reply - life is hectic at the moment and I'm still
> copy editing IronPython in Action.
>
> I've copied your email to the IronPython list as I don't know whether the
> CreateScope and other methods of the ScriptEngine are thread safe. My
> instinct would be to say no, but on the other hand the DLR has to handle
> running multi-threaded code so maybe...
>
> Michael Foord
>
> greenbergjosh at hotmail.com wrote:
>
>> Some one has sent you a message via your contact form. They filled in the
>> following values :
>>
>> comment = I read your article on IronPython and I was hoping you might
>> have an answer to the following question.
>>
>> I would like to embed IronPython in a web application.  I would like to
>> initialize the engine and runtime in the Application_Start() method and
>> store an instance of the ScriptEngine in the Application object.  Then, any
>> time I need to run some python I intend to call the
>> ScriptEngine::CreateScope() method and use it to get a new scope in which to
>> execute my code.  Is this approach thread safe?  I will have only one
>> instance of the ScriptEngine shared by many threads.  Each thread will call
>> CreateScope whenever it chooses.
>>
>>
>> It will look something like:
>>
>>
>> protected void Application_Start(object sender, EventArgs e)
>>
>> {
>>
>> ScriptRuntime truntime = ScriptRuntime.Create();
>>
>> ScriptEngine teng = truntime.GetEngine("py");
>>
>> this.Application.Add(“PythonEngine†, teng);
>>
>> }
>>
>>
>> Then, in some web page or dll called by a web page I would do
>>
>>
>> ..
>>
>> ScriptEngine se = (ScriptEngine)Application[“PythonEngine†];
>>
>> ScriptScope ss = se.CreateScope();
>>
>> ScriptSource src = se.CreateScriptSourceFromString(“y=24†,
>> SourceCodeKind.Statements);
>>
>> CompiledCode cc = src.Compile();
>>
>> cc.Execute(scope);
>>
>> ...
>>
>>
>> Is this going to work or will I run into threading problems?  In other
>> words, is the ScriptEngine thread-safe?  Will it serialize all of my
>> cc.Execute() calls?  Any other insight into its behavior in this regard
>> would be appreciated.
>>
>>
>> Many Thanks,
>>
>> Josh
>>
>> name = Josh
>> email = greenbergjosh at hotmail.com
>> subject = Embedding IronPython
>>
>>
>
>
> --
> http://www.ironpythoninaction.com/
> http://www.voidspace.org.uk/blog
>
>
>
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