IPC with Squeak

Bert Freudenberg bert at freudenbergs.de
Wed Jan 2 21:45:56 UTC 2008

On Jan 2, 2008, at 22:10 , Michael Haupt wrote:

> Dear all,
> here's a little scenario for which I can imagine an implementation
> that I don't like, though.
> A process is talking to a running Squeak VM/image, sending it
> requests. Squeak responds. Through what channels could both requests
> and responses be sent?
> I can imagine using networking (sockets), but since the process and
> Squeak VM will surely be running on the same machine, that seems a
> little bit exaggerated. Are there other ways of doing IPC with Squeak
> that exist in the form of a loadable package? (Or would they have to
> be implemented?)

Which platforms do you need to support? IPC is inherently platform- 

Sockets aren't all that bad I'd say, it's a standard way of doing  
IPC. Ian's new Socket Plugin supports all socket families so you do  
not have to use network sockets. Has not been tested on non-Unix  
platforms yet AFAIK, though.

Another possibility would be using pipes - I had the OLPC image  
communicate with a Python wrapper via AsyncFile for a while (we now  
switched to the DBus plugin).

And OSProcess lets you connect processes via stdin/stdout.

How would you do it if you were coding in C?

- Bert -

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