Messages in this thread |  | | Date | Wed, 7 Nov 2001 15:35:34 -0700 | From | Allen Campbell <> | Subject | Re: Yet another design for /proc. Or actually /kernel. |
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On Wed, Nov 07, 2001 at 02:42:48PM -0500, Daniel R. Warner wrote: > Erik Hensema wrote: > > > - Multiple values per file when needed > > A file is a two dimensional array: it has lines and every line > > can consist of multiple fields. > > A good example of this is the current /proc/mounts. > > This can be parsed very easily in all languages. > > > > No need for single-value files, that's oversimplification. > <snip> > > > This is fine for reading, but it makes it harder for humans to change > values in /proc - eg, echo 0 > /proc/sys/net/ipv4/tcp_ecn >
'Multiple value' files can be made easy to 'write'. The only requirement is each 'field' in the file have a unique label. Then it's a common associative array, requiring some generic filesystem write magic to handle the input:
echo "label:1" > /proc/...
The 'generic write magic' would require (at least, without even more magic) that all /proc files conform to the schema. This is probably a _good_ thing.
-- Allen Campbell | Lurking at the bottom of the allenc@verinet.com | gravity well, getting old. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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