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From: braner@batcomputer.UUCP
Newsgroups: comp.sys.atari.st
Subject: Re: read past EOF?
Message-ID: <1289@batcomputer.tn.cornell.edu>
Date: Sun, 7-Jun-87 09:55:18 EDT
Article-I.D.: batcompu.1289
Posted: Sun Jun  7 09:55:18 1987
Date-Received: Mon, 8-Jun-87 03:51:46 EDT
References: <1987@ihuxy.ATT.COM>
Reply-To: braner@tcgould.tn.cornell.edu.UUCP (braner)
Organization: Cornell Theory Center, Cornell University, Ithaca NY
Lines: 11
Keywords: read, bug, gemdos, megamax
Summary: get the file size attribute first

[]

When I buffer I/O myself (see the source code for my uu*code, MORE, etc)
(oops: those are in AL, not C!) (In C: my version of microEMACS) I first
read the file attributes (using Setdta() and Fsfirst()) and isolate the file
size.  Later, when reading the file in chunks (of 4.5 or 9 or 18K) I keep
track of the amount remaining to be read.  In the last call to Fread() I only
ask for the amount that I know is there!  (Why all the trouble? - 'cause this
is _much_ faster than using the byte-by-byte UNIX-like fopen(),fread()...)

- Moshe Braner