Xref: utzoo comp.sys.mac:27369 comp.sys.mac.programmer:4755
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!rutgers!cmcl2!ccnysci!alexis
From: alexis@ccnysci.UUCP (Alexis Rosen)
Newsgroups: comp.sys.mac,comp.sys.mac.programmer
Subject: Re: Changing max. no. of files open at one time under Mac OS
Message-ID: <1329@ccnysci.UUCP>
Date: 26 Feb 89 05:56:00 GMT
References: <2054@pembina.UUCP> <8219@polyslo.CalPoly.EDU> <331@lloyd.camex.uucp>
Reply-To: alexis@ccnysci.UUCP (Alexis Rosen)
Organization: City College of New York
Lines: 20


Something *VERY* screwy is going on here. I just looked at the boot blocks on
my two and they unquestionably say, ten open files. Well, that's a little
weird. See, I'm running MultiFinder. And when I work, I usually have the
Finder, Word, FoxBase, and sometimes ResEdit and LSP all open at once.
In Foxbase alone I can have twenty or thirty files open at once. Now it's
true, some of those are text files which are probably read and then closed,
but as I type this I have six data files and eleven indexes open!

Now, I just tried to open lots of files in ResEdit and I hit a hard limit
of three open files. I know that I've had more than that open at once in
the past. So is that open-file limit applicatble to _resource_ files only?
If so I've been wasting some memory (not a lot, though).

That does bring up another question though- what does the file system do
about open data forks? Does it just allocate the buffer (if you don't allocate
your own) and other stuff on the system heap? What gives?

Alexis Rosen
alexis@ccnysci.uucp