Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!elroy.jpl.nasa.gov!decwrl!nsc!voder!apple!lsr
From: lsr@Apple.COM (Larry Rosenstein)
Newsgroups: comp.sys.mac.system
Subject: Re: UNIX limits (was Re: All about sys 7.0 <long>)
Message-ID: <50969@apple.Apple.COM>
Date: 29 Mar 91 22:14:00 GMT
References: <1991Mar27.194158.3258@waikato.ac.nz> <1991Mar27.144323.21504@ux1.cso.uiuc.edu> <1897@camex.COM>
Organization: Future Stuff, Apple Computer, Inc.
Lines: 15

In article <1897@camex.COM> kent@sunfs3.Camex.COM (Kent Borg) writes:
>
>I think that under 7.0 file control blocks are dynamically allocated
>by the system.  I m sure there is still an upper limit, but it is
>likely memory capacity/heap fragmentation bound.

I think is true also.  There is a limit, which is imposed by the fact that
refnums are signed offsets into the FCB table.  This give a maximum of about
340 open files (since each FCB is 95 bytes).

-- 
Larry Rosenstein,  Object Specialist
Apple Computer, Inc.  20525 Mariani Ave, MS 77-A  Cupertino, CA 95014
AppleLink:Rosenstein1    domain:lsr@Apple.COM
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