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From: guy@gorodish.UUCP
Newsgroups: comp.bugs.sys5
Subject: Re: What is a QUEDEFS file (cron)?
Message-ID: <12830@sun.uucp>
Date: Fri, 6-Feb-87 06:10:23 EST
Article-I.D.: sun.12830
Posted: Fri Feb  6 06:10:23 1987
Date-Received: Sat, 7-Feb-87 18:19:44 EST
References: <815@investor.UUCP> <1086@sfsup.UUCP>
Sender: news@sun.uucp
Reply-To: guy@sun.UUCP (Guy Harris)
Organization: Sun Microsystems, Mountain View
Lines: 21

>First, a little something about the SysV cron.  
>This is an impressive piece of work!

Yeah, especially impressive bits of code like

	while ((n->isdummy) && (n!=NULL)) n = n->right;

Bletch.  Somebody ought to sneak in during the night and make the
"-z" flag the default in the linker, so that the
null-pointer-dereferencing bugs get caught *before* this stuff gets
shipped....

Also, I'd be curious to see how it stacks up against other batch
systems, like MDQS.

>Finally, the '#u' field prevents scheduling of events when the number
>of users on the system exceeds this number.

Umm, err, I don't see any code to implement that in the S5R3 "cron",
nor in the S5R2 "cron".  There's a #define for USRF, but it's not
used anywhere.