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RE: Clarification on HPACK dynamic table size increases?

From: Mike Bishop <Michael.Bishop@microsoft.com>
Date: Thu, 12 Mar 2015 23:49:26 +0000
To: Daurnimator <quae@daurnimator.com>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
Message-ID: <BL2PR03MB13254980CFB31A76C197F9C87060@BL2PR03MB132.namprd03.prod.outlook.com>
6.3 isn't saying that the value can only be reduced.  There is a maximum that the decompressor has said it's willing to allow the compressor, and the compressor is allowed to choose any value <= what the decompressor allows it.  The wording there could be cleaner, since there's a maximum table size, and a maximum value *for* the maximum table size.  :-(

-----Original Message-----
From: Daurnimator [mailto:quae@daurnimator.com] 
Sent: Thursday, March 12, 2015 3:53 PM
To: ietf-http-wg@w3.org
Subject: Clarification on HPACK dynamic table size increases?

I'm working on implementing HPACK, wanted clarification on whether the dynamic table can grow:

>From 4.2
> This mechanism can be used to completely clear entries from the dynamic table by setting a maximum size of 0, which can subsequently be restored.

However, 6.3 has a MUST that the table may only be reduced in size:
> The new maximum size MUST be lower than or equal to the last value of the maximum size of the dynamic table.


Received on Thursday, 12 March 2015 23:49:59 UTC

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