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Re: Implicitly opened streams and exposing stream IDs

Dmitri Tikhonov <dtikhonov@litespeedtech.com> Tue, 03 April 2018 14:07 UTC

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Date: Tue, 03 Apr 2018 10:07:13 -0400
From: Dmitri Tikhonov <dtikhonov@litespeedtech.com>
To: Nick Banks <nibanks@microsoft.com>
Cc: Martin Thomson <martin.thomson@gmail.com>, Marten Seemann <martenseemann@gmail.com>, Lucas Pardue <Lucas.Pardue@bbc.co.uk>, QUIC WG <quic@ietf.org>
Subject: Re: Implicitly opened streams and exposing stream IDs
Message-ID: <20180403140712.GE1695@ubuntu-dmitri>
Mail-Followup-To: Nick Banks <nibanks@microsoft.com>, Martin Thomson <martin.thomson@gmail.com>, Marten Seemann <martenseemann@gmail.com>, Lucas Pardue <Lucas.Pardue@bbc.co.uk>, QUIC WG <quic@ietf.org>
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On Tue, Apr 03, 2018 at 02:02:28PM +0000, Nick Banks wrote:
> For implicit opening, you only need to track the following, and you
> know the state of all stream IDs:
>
>  - Set of all currently opened stream objects
>  - Largest stream ID ever opened
> 
> For explicit opening, since the streams below the largest stream ID
> ever opened, may never have been opened, you need to additionally
> track the stream IDs that have been closed (or inversely the set of
> stream IDs that have ever been opened).

Ah yes, that's true -- I remember adding this code now.

The tracking is simpler with implicit stream opening.

  - Dmitri.

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