From: Mark H Weaver <mhw@netris.org>
To: David Kastrup <dak@gnu.org>
Cc: guile-devel@gnu.org
Subject: Re: Improve `seed->random-state' in stable-2.0?
Date: Sat, 21 Jan 2012 03:20:26 -0500 [thread overview]
Message-ID: <877h0lv54l.fsf@netris.org> (raw)
In-Reply-To: <87d3adld31.fsf@fencepost.gnu.org> (David Kastrup's message of "Sat, 21 Jan 2012 08:38:42 +0100")
David Kastrup <dak@gnu.org> writes:
> Actually, you don't need a PRNG at all. Generate a _good_ random
> starting value, and count sequentially from there.
This is _exactly_ what my patch does, on a per-thread basis.
The starting value is read directly from /dev/urandom if available.
However, if /dev/urandom cannot be read, the PRNG is used to generate
the starting value. This is a last resort, and ideally we should never
use it.
Thanks,
Mark
next prev parent reply other threads:[~2012-01-21 8:20 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-20 3:28 Improve `seed->random-state' in stable-2.0? Mark H Weaver
2012-01-20 8:37 ` David Kastrup
2012-01-20 14:54 ` Andy Wingo
2012-01-20 18:52 ` Mark H Weaver
2012-01-20 20:35 ` Andy Wingo
2012-01-20 22:45 ` Mark H Weaver
2012-01-21 7:38 ` David Kastrup
2012-01-21 8:20 ` Mark H Weaver [this message]
2012-01-23 9:52 ` Andy Wingo
2012-01-20 23:46 ` Mike Gran
2012-01-23 9:55 ` Andy Wingo
2012-01-23 13:06 ` Mike Gran
2012-01-23 14:06 ` Andy Wingo
2012-01-24 6:08 ` Mike Gran
2012-01-24 9:56 ` Andy Wingo
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