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January 2008, Week 4

HP3000-L@RAVEN.UTC.EDU
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Subject:
Re: FLOCK/FWRITE/FUNLOCK to Message File Question
From:
Brian Donaldson <[log in to unmask]>
Reply To:
Brian Donaldson <[log in to unmask]>
Date:
Thu, 24 Jan 2008 18:23:53 -0500
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<<snip>>

The other consideration is how long you expect the data to reside in the file.   
If you use it like a local socket or pipe, only one or two records are likely at 
risk.   If you're using it as a durable queuing mechanism, where say 100s or 
1000s of records that persist for more than a few seconds you really need to 
use FLOCK/FUNLOCK or FCONTROL 2.

<<end snip>>


Ar ar, Jim Lad,

The MPEiX Intrinsics manual (FCONTROL 2 writeup) says the FCONTROL 2
is ignored for message files.

So the FLOCK/FUNLOCK would probably be the way to go.

Brian "Black Dog" Donaldson.

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