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Re: Concurrency

From: Giuseppe Scrivano
Subject: Re: Concurrency
Date: Sun, 28 Mar 2010 23:04:19 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.93 (gnu/linux)

Hello, sorry my late reply:

Tom Tromey <address@hidden> writes:

> There is also a new variable, minibuffer-mutex.  I think it is pretty
> self-explanatory, but Giuseppe should probably explain it.

It is a mutex that protects the mini-buffer from concurrent accesses.
Only one thread can use the minibuffer at a time.

> Giuseppe also has a patch of some kind to Gnus, but I didn't see it in
> the tree, and I don't know exactly what it does.

No, I don't have a patch, I have just experimented with "(run-in-thread
gnus)" to verify it loads correctly in a separate thread.

Also we have to mention the two new macros:

(defmacro with-new-thread (&rest body)) -- BODY is executed in a new

(defmacro with-critical-section (mutex &rest body)) BODY is executed
after MUTEX is locked and automatically released on exit.


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