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From: thompson@PAN.SSEC.HONEYWELL.COM (John Thompson)
Newsgroups: comp.sys.apollo
Subject: re: detecting locked objects
Message-ID: <9106241611.AA16273@pan.ssec.honeywell.com>
Date: 24 Jun 91 16:11:10 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Distribution: world
Organization: The Internet
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> Is there any way to determine if a file is locked other than llkob.
> I am trying to write a script that can tell if the file about to be
> opened is already being used by someone else.  Without such a check, the
> process just bombs.  
> 
> I know how to use llkob, but it can't check for locked objects on
> any node other than the node it is called from.  I know that I could
> crp onto the node I'm interested in, but I'm afraid that might slow things
> down too much.

Try using 'llkr' in the /systest/ssr_util directory.  Note that it is _NOT_
a supported program, so you can't count on it (though it's been around for 
a looonnnggg time).  Also note that the format is more verbose.  I can't
say for sure, but I think it doesn't always get the locking person/process
correct either.
                   
Example:
  frodo> llkr //merry/local_user/joe_u/com/wait
  Locked by "Joe Username @ //arwen" - joe_u.group.org
  Locking modes on //merry/local_user/joe_u/com/wait : FILE_$NR_XOR_1W FILE_$EXECUTE


-- jt --
John Thompson
Honeywell, SSEC
Plymouth, MN  55441
thompson@pan.ssec.honeywell.com

Avoid the rush -- Procrastinate Now!