[xmonad] bringing xmonad into the threaded world

Mike Meyer mwm at mired.org
Tue May 8 17:46:05 CEST 2012


On Mon, 07 May 2012 10:28:32 -0400
wagnerdm at seas.upenn.edu wrote:
> Quoting Mike Meyer <mwm at mired.org>:
> > Why is it silly? It's not like the overhead of starting a new process
> > is going to be anything but noise compared to recompiling the
> > configuration file.
> Perhaps silly is the wrong word. But:
> 
> Because it means any time I want to do something with X, but keep  
> xmonad's response time snappy, I have to create a process, make sure  
> that process is in xmonad's PATH with all the confusing debugging  
> associated with that (some people on #xmonad actually didn't have  
> xmonad in their $PATH!), figure out how to do IPC...

Ah, it's doing a spawn() instead of a simple fork() to run code in the
existing process. I agree, that's silly.

After a quick glance at the patch, it should mostly work if you use a
real OS fork instead of a forkIO (because you're still doing IPC via
the X server), and also have the nifty protected address space that
comes with using a modern facility instead of threading.

     <mike
-- 
Mike Meyer <mwm at mired.org>		http://www.mired.org/
Independent Software developer/SCM consultant, email for more information.

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