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    SubjectRe: Yet another design for /proc. Or actually /kernel.
    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.
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