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From: arden@creed.UUCP (Bruce Arden)
Newsgroups: net.micro.pc
Subject: How does a program know when a disk is changed.
Message-ID: <131@creed.UUCP>
Date: Wed, 27-Mar-85 11:24:18 EST
Article-I.D.: creed.131
Posted: Wed Mar 27 11:24:18 1985
Date-Received: Sun, 31-Mar-85 02:28:04 EST
Organization: STC Telecommunications, Brighton
Lines: 11

I have a program that needs to keep a file open for a long time.  
How can I be sure that someone hasn't changed the disk since I 
opened the file?  

I noticed a 'MEDIA CHECK' command for device drivers, but I can't
find any system call to do this check.  

I am using mostly 'Xenix compatible' system calls under PCDOS 2.0.
-- 
Bruce Arden
..!mcvax!ukc!stc-a!creed!arden