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- From: gdesroch@slate.mines.colorado.edu (DESROCHERS GARY FREDERIC)
- Newsgroups: comp.sys.apple2
- Subject: Re: gs.os.FST?
- Message-ID: <1992Aug20.144154.18882@slate.mines.colorado.edu>
- Date: 20 Aug 92 14:41:54 GMT
- References: <1992Aug20.111829.9858@actrix.gen.nz>
- Organization: Colorado School of Mines
- Lines: 54
-
- David.Empson@bbs.actrix.gen.nz writes:
- : I was thinking about a hypothetical GS/OS-specific file system last
- : night, and had a few ideas that others may like to comment on:
- :
- : It should support file and disk sizes up to the full limit of GS/OS
- : parameters, i.e. 4 gigabytes per file or disk.
- :
- : Filenames should be less restrictive. I like HFS: 31 characters,
- : only illegal character is colon.
- :
- : Dates stored on disk should include seconds (for those of us who
- : frequently compile programs, and use date/time comparisons to work out
- : whether a source file needs to be recompiled).
- :
- : Filetypes should be two bytes and auxiliary types four bytes (to allow
- : for "future expansion").
-
- Now these I totally agree with.
-
- : The fields required to handle the resource fork should be in the
- : directory, not in an extended file key block.
-
- This is the way it should be.
-
- : Otherwise, there is no reason why it cannot be an expanded version of
- : ProDOS. To handle disks larger than 32 megabytes, mutiple disk blocks
- : could be combined into "allocation blocks". To make a 4 gigabyte
- : disk, you would need 64k allocation blocks (64k of them).
-
- We could always use a undefined storage type. I know, it will mess up
- future software releases. (Yah right!) Actually it may not maybe we could
- just ask Apple which one. That way the lower 32 megs could (could be less)
- be a normal ProDOS and then you could create an extended directory file.
- This directory file could hold information like above. The key block for
- files in this directory could have a 4 byte pointer to the files key block
- which could be two 512 byte blocks with the high 2 bytes in the second key
- block. ProDOS actually has it in it to do stuff like this. It even has
- stuff to increase the length of a directory file so that more information
- to be added. I don't know. Haven't had a full night like David to think
- about it so this stuff is right off the top of my head.
-
- :
- : Any comments?
- :
-
- Yeah, let's get some comments about this.
-
- Gary
- gdesroch@slate.mines.colorado.edu
- --
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