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Re: GSS-APIv3 sketch

Volker Lendecke <Volker.Lendecke@SerNet.DE> Thu, 12 November 2009 07:17 UTC

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Date: Thu, 12 Nov 2009 08:20:18 +0100
From: Volker Lendecke <Volker.Lendecke@SerNet.DE>
To: Nicolas Williams <Nicolas.Williams@sun.com>
Subject: Re: GSS-APIv3 sketch
References: <20091111181140.GC10501@Sun.COM> <C111F570-A844-4782-B561-08B6685D7E09@apple.com> <20091111184244.GN1105@Sun.COM> <20091111184726.GD10501@Sun.COM> <1257980366.2759.41.camel@naomi.s4.naomi.abartlet.net> <E1N8MHF-004jYm-T7@intern.SerNet.DE> <20091111230442.GY1105@Sun.COM>
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On Wed, Nov 11, 2009 at 05:04:42PM -0600, Nicolas Williams wrote:
> I'd like to hear more about this.  Can you please describe the problem
> with libraries creating worker threads?  You can use private e-mail if
> you wish.  References to bug reports would be great.

The most nasty implications come from initialization and
from fork. If you have several libraries doing threads, it
is easy for unsuspecting applications creating races. The
worst one is fork: You have to shut down all threads before
the fork and potentially re-start them after it, because you
need to drop all locks/mutexes/etc during the fork. If
needed, I can try to contact the author and get his slides

Volker

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