* Resize / Truncate Direct_IO file
@ 2002-03-12 20:40 John Cupak
2002-03-12 22:41 ` Jeffrey Carter
0 siblings, 1 reply; 2+ messages in thread
From: John Cupak @ 2002-03-12 20:40 UTC (permalink / raw)
A co-worker asked me if it is possible to truncate or resize an Ada
Direct_IO file, and after scouring the 'net and past postings I
couldn't provide an answer for her.
So, here goes: Suppose I have an instantiated Direct_IO file with 10
records.
I set the index to 5, and realize I don't need records 6-10. How do I
truncate or resize the file, short of deleting records 6-10? I don't
see an End_Of_File procedure for Direct_IO. Am I missing something?
John Cupak
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Resize / Truncate Direct_IO file
2002-03-12 20:40 Resize / Truncate Direct_IO file John Cupak
@ 2002-03-12 22:41 ` Jeffrey Carter
0 siblings, 0 replies; 2+ messages in thread
From: Jeffrey Carter @ 2002-03-12 22:41 UTC (permalink / raw)
John Cupak wrote:
>
> So, here goes: Suppose I have an instantiated Direct_IO file with 10
> records.
> I set the index to 5, and realize I don't need records 6-10. How do I
> truncate or resize the file, short of deleting records 6-10? I don't
> see an End_Of_File procedure for Direct_IO. Am I missing something?
No. A Direct_IO file can get bigger, but not smaller. Within the
confines of Direct_IO, all you can do is create a new file with only the
desired data.
--
Jeffrey Carter
^ permalink raw reply [flat|nested] 2+ messages in thread
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