Re: IEFU85 question

Fri, 18 Nov 2011 07:20:27 -0800 

On 11/18/2011 3:58 PM, McKown, John wrote:

z/OS UNIX needs to implement Linux's "inotify" interface. And port incron. 
Makes monitoring filesystem changes quite easy.


Hi
I think this w_ioctl goes in this direction, but not clear how to achieve file system change notifications. 


John McKown

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-----Original Message-----
From: IBM Mainframe Discussion List
[mailto:IBM-MAIN@bama.ua.edu] On Behalf Of Miklos Szigetvari
Sent: Friday, November 18, 2011 8:26 AM
To: IBM-MAIN@bama.ua.edu
Subject: Re: IEFU85 question

      Hi

Thank you.
I wanted to avoid the "extra" server, but  seems to me I can't.

I wanted to get informed if a file in some USS path has changed .

Funny, the  w_ioctl (BPX1OC) also using IPC message queues to
notify  at
file change, but here not very clear how can I find out
which file has changed.
The application would be an USS server , reading some IPC
message queues.

On 11/18/2011 1:47 PM, Rob Scott wrote:

No.

IEFU85 is invoked for cross-memory callers and the caller

may well be holding locks.

I would guess that very few (if any) z/OS Unix callable

services are valid in cross-memory mode and none of them
would be valid when caller has locks held.

IMHO - it is never wise to do anything "clever" in

IEFU83/84/85 - just save the SMF data that you are interested
in a queue or list somewhere where a server subtask can pick
it up asynchronously.

Rob Scott
Lead Developer
Rocket Software
275 Grove Street * Newton, MA 02466-2272 * USA
Tel: +1.617.614.2305
Email: rsc...@rs.com
Web: www.rocketsoftware.com


-----Original Message-----
From: IBM Mainframe Discussion List

[mailto:IBM-MAIN@bama.ua.edu] On Behalf Of Miklos Szigetvari

Sent: 18 November 2011 11:34
To: IBM-MAIN@bama.ua.edu
Subject: IEFU85 question

Hi


I would need the IEFU85 exit , to get control during the

write of 92 (USS File Activity) records.

Can I use here USS  calls ?
Would like to send the record to an IPC message queue.



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