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From: sandell@ils.nwu.edu (Greg Sandell)
Newsgroups: comp.sys.mac.programmer
Subject: FSRead() limit on number of bytes
Message-ID: <1335@anaxagoras.ils.nwu.edu>
Date: 11 Aug 90 04:52:04 GMT
Sender: news@anaxagoras.ils.nwu.edu
Reply-To: sandell@ils.nwu.edu (Greg Sandell)
Distribution: world
Organization: The Institute for the Learning Sciences
Lines: 19

Using FSRead() I find that I can read only a limited number of
bytes at a time.  In the code below byteCount can be as large
as 1500 but when I use a value of 2000 the program dies a strange
death:  the disk light stays continuously lit (non-blinking)
and the disk whirs forever until I reboot.

byteCount = 1000L;
FSRead(fRefNum, &byteCount, (char *)data);

Has anybody run into this problem?  Has it been documented?
There is no mention of the limit in Mac Revealed or Inside Mac.

Thanks in advance,
Greg Sandell

****************************************************************
* Greg Sandell (sandell@ils.nwu.edu)              Evanston, IL *
* Institute for the Learning Sciences, Northwestern University *
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