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- Date: Sat, 12 Dec 92 21:15:35 IST
- Sender: Nota Bene List <NOTABENE@TAUNIVM.BITNET>
- From: "J-P Takala, University of Helsinki,
- Sociology" <JTAKALA@FINUHA.BITNET>
- Subject: Overflows and Multiple NBs
- Newsgroups: bit.listserv.notabene
- Lines: 40
-
-
-
- Paul Bodin's information on the regular overflow file is helpful and
- his theory of @NBDTA.TMP seems the most plausible so far. His suggestion
- that its size may depend on printer drivers and other such configuration
- was supported by this: When I had a simple matrix printer
- loaded, shelling out to dos produced a @nbdta.tmp some 32 K in size,
- but with a larger laser printer driver, the file was 44 K. I also
- looked inside the file and saw saw at least those 'personal' dictionaries
- I load at startup. This suggests a hypothesis that @nbdta.tmp is a buffer
- for the stuff loaded in memory by nbstartup.int. However,
- @nbdta.tmp also seemed to contain some regular NB commands and
- messages, which suggests that the file would be created even
- if, say, nbstartup.int were empty and there were no default
- printer or such (this I haven't tested though).
-
- So far nobody has commented on the risks of running two or more NB4s
- simultaneously on one computer, which was the problem that originally
- made me think of @nbdta.tmp and other files. Well, @nbdta.tmp does
- not seem to pose a big practical risk here, since - even if it
- has always the same, unique name - one would not shell out to
- dos from even one, let alone several NBs when you can open a DOS window
- directly from DesqView or other such multitasking environment or program
- carousel. (I did test it, however, and both copies of NB
- crashed upon Exit. So it is a real risk.)
-
- The regular *.tmp files aren't a risk either because they seem to have random
- names and the chances of a collision are very small (provided there is
- enough space on the overflow drive); and I wouldn't be surprised if
- there were a check that the filename isn't used already.
-
- It is the other system files that I'm more worried about, and
- haven't tested yet. And of course ALL THOSE TERRIBLE THINGS
- that I don't even have name for yet.
-
- Those risks notwithstanding, it IS tempting to use another NB
- copy for memory intensive and crash-risky jobs, such as lookups
- in the present Orbis.
-
- j-p takala
-