Re: [quicwg/base-drafts] PRIORITY frame on control stream referencing unopened request stream (#2502)

Lucas Pardue <notifications@github.com> Fri, 10 May 2019 11:22 UTC

Return-Path: <noreply@github.com>
X-Original-To: quic-issues@ietfa.amsl.com
Delivered-To: quic-issues@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AB832120072 for <quic-issues@ietfa.amsl.com>; Fri, 10 May 2019 04:22:22 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.464
X-Spam-Level:
X-Spam-Status: No, score=-6.464 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_IMAGE_ONLY_20=1.546, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_DKIMWL_WL_HIGH=-0.01] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=github.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5XdNg3aCmxDH for <quic-issues@ietfa.amsl.com>; Fri, 10 May 2019 04:22:21 -0700 (PDT)
Received: from out-13.smtp.github.com (out-13.smtp.github.com [192.30.254.196]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 5E326120026 for <quic-issues@ietf.org>; Fri, 10 May 2019 04:22:21 -0700 (PDT)
Date: Fri, 10 May 2019 04:22:20 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1557487340; bh=aqLK+VgqMdRrjPqKDooux/snmrU3TdJsT1hj1lcVTy8=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=zJ1zWjrzgjyyQKg/zQ7Um+qiN7axEqn4+FCKTOYQ+WfbwO9Ucm7Jyn/Tic6/1cGLo +0l4AsFmf38mvgcYgFabei2/+X7r3IQ61hP0q4V31klG0cfWO9Vn+ITGj+jCoeiXt7 Ev5OkDS/ZorTWC5FLe4uzoLzSLK/TdAdYC5oA1B0=
From: Lucas Pardue <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+AFTOJKZJJXWRIOVQC3X4VIF24KIWZEVBNHHBR4DCTQ@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/issues/2502/491254708@github.com>
In-Reply-To: <quicwg/base-drafts/issues/2502@github.com>
References: <quicwg/base-drafts/issues/2502@github.com>
Subject: Re: [quicwg/base-drafts] PRIORITY frame on control stream referencing unopened request stream (#2502)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5cd55eec8800b_36153f8ee7ecd960391cc"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: LPardue
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
X-GitHub-Recipient-Address: quic-issues@ietf.org
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic-issues/yte5RTgTJU39vtHA31GdU7cNXYk>
X-BeenThere: quic-issues@ietf.org
X-Mailman-Version: 2.1.29
List-Id: Notification list for GitHub issues related to the QUIC WG <quic-issues.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic-issues/>
List-Post: <mailto:quic-issues@ietf.org>
List-Help: <mailto:quic-issues-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 10 May 2019 11:22:23 -0000

I think it would not be too much effort to add something that says approximately, for the current scheme: 

"The priority tree always has a root and and one 0-weight placeholder (the zeroth placeholder)". 

Then we modify one of the paragraphs to say:

"When a prioritized element is first created, it has a default initial weight of 16 and a default dependency. Requests are dependent on the zeroth placeholder, placeholders are dependent on the root of the priority tree; pushes are dependent on the client request on which the PUSH_PROMISE frame was sent."

If some other prioritisation scheme were come into play, just replace "dependency" by prioritisation group, or whatever term you like.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/quicwg/base-drafts/issues/2502#issuecomment-491254708