[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Does anyone actually use threads with guile?

From: Han-Wen Nienhuys
Subject: Re: Does anyone actually use threads with guile?
Date: Mon, 17 Nov 2008 11:09:09 -0200
User-agent: Thunderbird (X11/20080723)

Linas Vepstas escreveu:
> 2008/11/12 Linas Vepstas <address@hidden>:
>> Today, I got a new crash. I have multiple threads, which
>> are doing nothing but a bunch of define's, in parallel.
>> (They're loading scheme code from various files).
> Studying the code just a little bit more, this looks like
> a dopey and pointless error check within guile,
> specifically, at libguile/throw.c line 695.
> Removing it seems to result in a runable system.

Re -the subject- : I looked at the evaluator code from a threading
perspective a few months back, and come to the conclusion that it 
is totally broken.   The memoization code rewrites expressions 
without locking or atomicity, and if you have two threads memoizing
(ie. executing the same code for the 1st time), you will have 
unpredictable effects.

 Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen

reply via email to

[Prev in Thread] Current Thread [Next in Thread]