[IPython-dev] In-process kernel
MinRK
benjaminrk at gmail.com
Tue May 22 14:46:00 EDT 2012
On Tue, May 22, 2012 at 11:23 AM, Thomas Kluyver <takowl at gmail.com> wrote:
> I was just thinking about something we've been discussing for a while,
> but not (as far as I know) got round to implementing. We'd like to
> implement an in-process kernel. This would be particularly valuable
> for GUI applications which want to embed the Qt console and expose
> objects within the application - at present, they're in the odd
> situation that they can have either the kernel or the frontend
> embedded in the application, but not both. Ideally this would be
> structured so that these applications wouldn't have an unnecessary
> dependency on zeromq, but that's not too important.
>
> I think the critical design decision is whether we run kernel
> functions synchronously - and block the application if some operation
> is taking a long time - or have a kernel thread, and risk the dangers
> of multi-threading (e.g. if the user tries to run commands that affect
> the GUI directly, Qt will likely segfault). We might end up with both
> to support different use cases, but which one do you think we should
> put together first?
>
The kernel has the ability to integrate into the Qt eventloop with %gui qt.
Why shouldn't this enable both happily residing in the Qt loop without
resorting to threads?
-MinRK
>
> Thanks,
> Thomas
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