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 CAD / LDraw Files / Models / 1096
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Subject: 
Re: Recursive MPD files (WAS: Re: Lich (Undead Wizard))
Newsgroups: 
lugnet.cad.dat.models, lugnet.cad.dev
Date: 
Mon, 13 Mar 2000 11:38:17 GMT
Viewed: 
1121 times
  
Don Heyse wrote...
The lich is evil I tell ya!

Well maybe just recursive MPD files are evil.  Do you realize ring2.dat
is an ldraw primitive and that by redefining it in the MPD file you've
created an infinite loop of dat file includes.

ring2.dat -> flame3.dat -> flame3s.dat ...-> stud2a.dat -> ring2.dat...

Of course stud2a.dat expects to get the ring2.dat primative in the P
directory.  But since ring2.dat from the MPD file was encountered first,
we get that one instead (and the ring is complete).

Then that lame excuse for an OS, Windows gets so hosed up when lich.dat
blows the stack in my ldglite program that it refuses to do ANY more
opengl until I reboot.

So my question is:  How do we fix this?  Must I check for infinite
loops when parsing MPD files.  And why doesn't that L3Input code Lars
loaned me already do that?  Hasn't this come up before?

I guess it hasn't been much of a problem before, since most primitives
have "strange" names.
The problem is not related to MPD - same problem if you had ring2.dat
in the MODELS directory.
I will add a loop-check to L3Input.cpp and send it to you.
/Lars



Message has 1 Reply:
  Re: Recursive MPD files (WAS: Re: Lich (Undead Wizard))
 
(...) Thanks Lars, I'll use your fix as soon as I get it. So far I've only come up with a crummy hack using the unused Investigated flag in L3Input. It makes the colors come out all wrong but at least it no longer crashes. Don (25 years ago, 14-Mar-00, to lugnet.cad.dat.models, lugnet.cad.dev)

Message is in Reply To:
  Recursive MPD files (WAS: Re: Lich (Undead Wizard))
 
(...) The lich is evil I tell ya! Well maybe just recursive MPD files are evil. Do you realize ring2.dat is an ldraw primitive and that by redefining it in the MPD file you've created an infinite loop of dat file includes. ring2.dat -> flame3.dat -> (...) (25 years ago, 11-Mar-00, to lugnet.cad.dat.models, lugnet.cad.dev)

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