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Date:	Tue, 26 Oct 1999 11:14:57 PDT
From:	Steven Levine <steve53@earthlink.net >
Reply-To:	scoug-programming@scoug.com
To:	scoug-programming@scoug.com
Subject:	SCOUG-Programming: REXX file lock/unlock, program instances

In <3815BF56.748A@peterskye.com>, on 10/26/99
at 08:39 AM, Peter Skye said:

>I wrote some test programs just now (Warp 4 FixPak 10), and they allow me
>to open a file in one program and, while the file remains open, open and
>read the file in another program. Thus, the files aren't locked while
>open. This may be specific to OS/2 and other platforms may lock the
>files while open.

It's specific to "how" you opened the file. Depends entirely on what you
have available. It's simple for me to open an file "Share None, Deny
Read, Deny Write" and no other application will be able to get at it. Any
decent kernal supports all of this. The differences you are seeing are
based on your choice of programming language.

Steven

--
-----------------------------------------------------------
Steven Levine MR2/ICE #10183 Warp4/FP11
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