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Re: Temporary memory

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In article <5ce8bbe2c2bob@sick-of-spam.invalid>,
   Bob Latham <bob@sick-of-spam.invalid> wrote:
> I could use some advice on obtaining and using temporary extra
> memory from within a program. I do recall that at one time there
> was a way to claim some temp memory but I also recall that the
> method changed for some reason. I can't remember how/why to be
> honest.  

> I need probably no more than 2M byte, a few 100k more the normal.
> I'm using OS5.31 but only have a set of RO3 PRMs.

> Essentially, I need to move a few blocks of data up or down within
> the file. Read blocks of bytes using OS_GBPB 3 and write them back
> either higher or lower with OS_GBPB 1. The size of the ram buffer
> determines if I have to do this in chunks or all in one go.

> Thanks for any advice.


> Background. I'm writing a FLAC (music file) tag editor for doing
> mass changes across a large library. Flac files have several blocks
> of data before the music in the file. Two of those blocks are the
> tagging area and the padding area. The padding area is there to
> give spare bytes within a fixed size file that you can use if you
> need them for tagging changes but you need to move the data between
> them to do that.

What language are you using?

You could...

- allocate a large enough slotsize when your app starts. 
- change slotsize dynamically using SWI Wimp_SlotSize.
- set up a Dynamic Area and use that.
- claim some RMA, but probably not a good idea these days.
- and no doubt other solutions are available!

-- 
Martin Avison 
Note that unfortunately this email address will become invalid
without notice if (when) any spam is received. 

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Thread

Temporary memory Bob Latham <bob@sick-of-spam.invalid> - 2026-06-14 09:56 +0100
  Re: Temporary memory Martin <News04@avisoft.f9.co.uk> - 2026-06-14 11:24 +0100
    Re: Temporary memory Bob Latham <bob@sick-of-spam.invalid> - 2026-06-14 12:41 +0100
      Re: Temporary memory Martin <News04@avisoft.f9.co.uk> - 2026-06-14 13:13 +0100
        Re: Temporary memory Bob Latham <bob@sick-of-spam.invalid> - 2026-06-14 14:51 +0100
          Re: Temporary memory Martin <News04@avisoft.f9.co.uk> - 2026-06-14 15:28 +0100

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