Date: Tue, 05 Jan 1999 16:23:34 -0700 From: Wes Peters <wes@softweyr.com> To: Nate Williams <nate@mt.sri.com> Cc: Bob Bishop <rb@gid.co.uk>, Narvi <narvi@haldjas.folklore.ee>, Terry Lambert <tlambert@primenet.com>, bright@hotjobs.com, hackers@FreeBSD.ORG Subject: Re: question about re-entrancy. Message-ID: <36929EF6.B771B6F3@softweyr.com> References: <Pine.BSF.3.96.990105223702.5112Y-100000@haldjas.folklore.ee> <199901052008.NAA09332@mt.sri.com> <199901052043.NAA09607@mt.sri.com> <l03020903b2b842a7c47f@[194.32.164.2]> <199901052242.PAA10308@mt.sri.com>
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Nate Williams wrote:
>
> > >A 'critical section of code' is a portion of the code that is accessing
> > >a shared resource, which can be protected by using an object lock.
> >
> > Erm, make that "...accessing *one or more* shared resources.", which is why
> > it isn't the same thing as an object lock (except in the degenerate case).
>
> Sure it is. The object lock is used to 'protect' the shared resources.
> This is multithreading/tasking 101 stuff, not rocket science.
Well, it is rocket science if you're working on Pathfinder, which had a
deadly embrace problem that was diagnosed, fixed, and uploaded about
halfway between Earth and Mars.
But it is still elementary multi-threaded programming. ;^)
--
Where am I, and what am I doing in this handbasket?
Wes Peters +1.801.915.2061
Softweyr LLC wes@softweyr.com
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