Re: [quicwg/base-drafts] Checking frame type encoding? (#2155)

MikkelFJ <notifications@github.com> Thu, 13 December 2018 21:02 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 A29C7130E9A for <quic-issues@ietfa.amsl.com>; Thu, 13 Dec 2018 13:02:07 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.842
X-Spam-Level:
X-Spam-Status: No, score=-6.842 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.46, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, GB_AFFORDABLE=1, HTML_IMAGE_ONLY_24=1.618, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001] 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 QroibRminsNA for <quic-issues@ietfa.amsl.com>; Thu, 13 Dec 2018 13:02:06 -0800 (PST)
Received: from out-2.smtp.github.com (out-2.smtp.github.com [192.30.252.193]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CDB80130EAE for <quic-issues@ietf.org>; Thu, 13 Dec 2018 13:02:05 -0800 (PST)
Date: Thu, 13 Dec 2018 13:02:04 -0800
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1544734924; bh=M/WFL62dYl8tPwumegOajIKRwniM4tqRjz/BVdcJLng=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=2EEDB4g+WByRg2+DBLfS5YGhGFvp5ZQ9c8PxbyQWTjxuJxoBomR+cRu7qF62C8Jxf 1Z3+ZeWo1dFIrVEmn17n0PNTKX2LGP8wL4qBR44O1G387L7WvgYq/Xy27TCHgdxhjK g5T1E2+WL6jdFLMltD4feIM1U+XF1y3J6I6pzxh8=
From: MikkelFJ <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+0166e4ab5492d9a753387f1d28ba05c3822199309ec8807492cf00000001182a8acc92a169ce174bfecb@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/issues/2155/447119390@github.com>
In-Reply-To: <quicwg/base-drafts/issues/2155@github.com>
References: <quicwg/base-drafts/issues/2155@github.com>
Subject: Re: [quicwg/base-drafts] Checking frame type encoding? (#2155)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5c12c8cce2f58_724d3feaa0ed45c0743861"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: mikkelfj
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/ccQoCPFZ7JX0GBq0l0s9ue3rreM>
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: Thu, 13 Dec 2018 21:02:08 -0000

I believe this is because it allows for fast switch statements in frame processing. It is what makes it affordable to use varints in extension frames. For two byte+ this could be relaxed, but even here, it allows for faster lookups. The situation is different where varints represent countable entities.

-- 
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/2155#issuecomment-447119390