| Douglas Muth on 7 Jan 2011 06:08:31 -0800 |
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| Re: [PLUG] "You are not expected to understand this." |
On Fri, Jan 7, 2011 at 8:36 AM, Chris Nehren <c.nehren/plug@shadowcat.co.uk> wrote: > At my talk at Central Wednesday night, I made an offhand reference to the above source code comment as present in V6 Unix, as part of the origins of the fork() call, and promised a link to the code. Here's that link: http://minnie.tuhs.org/cgi-bin/utree.pl?file=V6/usr/sys/ken/slp.c . > > Look in swtch() (classic K&R C here, get out your First Editions!) for the comment, and additionally look at newproc() and its comments for some insight into how it works. Really quite genius, and a testament to the engineering that went into early Unix. I'll be the first to admit that that level of C code is a bit beyond me. But I do appreciate the verbosity of the comments in that code. That said, while we're talking about C code, here's a little craziness about compiler bugs and the concept of trust: http://cm.bell-labs.com/who/ken/trust.html -- Doug ___________________________________________________________________________ Philadelphia Linux Users Group -- http://www.phillylinux.org Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug