[Info-vax] RMS internals?
Arne Vajhøj
arne at vajhoej.dk
Sun Aug 9 22:11:59 EDT 2009
Howard S Shubs wrote:
> In article <4a7dc34a$0$299$14726298 at news.sunsite.dk>,
> Arne Vajhøj <arne at vajhoej.dk> wrote:
>> Those limits are relevant.
>
> Only in the sense that I have to get around them, which is the point. I
> can't go to the 3rd party and tell them to get their record length down.
>
>> As soon as you have a file with longer lines and you set the
>> record type to something other than undefined, then you are
>> lying to VMS about the content and should be prepared for
>> weird results by utilities and programs trying to access
>> the file.
>
> Which is why I had to write what I've been talking about. My
> programmers can now call my routines and get whole records, regardless
> of RMS' limitations. I use RMS to get the data. Period. No "record
> management" for this, just open the file and hand me so many blocks of
> data, so I don't have to do the directory lookup and $QIO to the disk
> myself.
Yes, but you should use UNDEFINED. By specifying anything else
the actual content is invalid for the record format specified.
Arne
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