How about using the path to decide if the page is static or not,
instead of using hacks that will never be complete enough.
My idea:
- if the path a contains a directory named "static" then the page
is static and can be handled by khttpd. If khttpd is not running
it will work anyway, without polluting the environment with hacks.
Example:
$WEBROOT/logo.gif
will be handled by user space http server (if $WEBROOT does not contain
a "static" directory)
$WEBROOT/static/logo.gif
can be handled by khttpd if it is running.
=> Any page designer can decide (think private home pages), he would
know if a
page, gif ... is static or not.
Implementation details.
Searching for a specific string in a text are described in several text
books,
like Algorithms by Robert Sedgewick. One that I think is promising is
Rabin-Karp.
"Moving hash value" - can be compared to moving average over
characters. When it
matches you got a likely candidate, by using weights you could almost
avoid false
indications.
Regards,
Roger Larsson
Skellefteċ, Sweden
"Henning P. Schmiedehausen" wrote:
>
> torvalds@transmeta.com (Linus Torvalds) writes:
>
> >There may be implementation issues that make it impossible, of course. I
> >have by no means looked very deply at the problem set.
>
> I am really afraid that you opened up a whole can of worms with this
> idea, considering that even a simple static HTML page can contain lots
> of different headers like Date:, Expires:, Content-Type:, Connection:
> and so on. I'm not that happy about getting things like "building a
> Date: Header with time zone and everything" in the kernel. And if you
> use files with pre-tacked headers, you lose these informations which
> are crucial to the whole proxy-caching process on the Net.
>
> I think, khttpd is a path along which (sooner or later) lies madness
> and an apache in kernel space.
>
> Kind regards
> Henning
>
> --
> Dipl.-Inf. (Univ.) Henning P. Schmiedehausen -- Geschaeftsfuehrer
> INTERMETA - Gesellschaft fuer Mehrwertdienste mbH hps@intermeta.de
>
> Hutweide 15 Fon.: 09131 / 50654-0 info@intermeta.de
> D-91054 Buckenhof Fax.: 09131 / 50654-20
>
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Roger Larsson Skellefteċ Sweden
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