[Info-vax] Indexed file read question

Stephen Hoffman seaohveh at hoffmanlabs.invalid
Wed Nov 18 13:41:10 EST 2020


On 2020-11-18 17:42:32 +0000, abrsvc said:

> OK  Thanks.  That is what I thought.  These are not segmented keys.  I 
> will look further, but posts here have supplied what I needed.
> 
> RE: The overall application design:  There are numerous instances of 
> files being used as message communication mechanisms with 1-10 records 
> each.  Not very efficient, but that is how this system was created.  
> Many cases of the  following sequence:  Open file, update 1 field in a 
> record, close file.  Very crude synchronization technique as each open 
> is in a loop such that if file is locked, go back and try again 
> (forever...) until you get it open.
> 
> Many other such items throughout the code.  I am not involved with 
> "fixing' the problem, only to explain how it currently "works".

Somebody's seemingly doing a port off of OpenVMS, eh?



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