W3C home > Mailing lists > Public > ietf-http-wg@w3.org > April to June 2013

Header compression question

From: Gábor Molnár <gabor.molnar@sch.bme.hu>
Date: Sun, 30 Jun 2013 21:20:22 +0200
To: HTTP Working Group <ietf-http-wg@w3.org>
Message-id: <CA+KJw_6FSh9oy-GB-TAeBGyT-2hHGoxQUUES1iNtKz49PxzX5g@mail.gmail.com>
When implementing the differential coding part of the header compression
spec, the following question came up.

If I understand it correctly,
1. the indexes in the working set are frozen at the beginning of the
decoding process, so they might go out of sync with the header table
2. when dereferencing an index, the working set is checked first and then
the header table
3. as a result of the combination of these, the working set may shadow
entries in the header table, and make them unaccessible

Is this the way dereferencing indexes work, and this "shadowing" must be
worked around when doing the encoding part, or did I misunderstand

PS: should I send messages like this to the editors of the spec only or is
it OK to send this to the list?

Received on Sunday, 30 June 2013 19:21:11 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 17:14:11 UTC