Re: [quicwg/base-drafts] Add OnPacketReceived to pseudocode (#3653)
Martin Thomson <notifications@github.com> Thu, 14 May 2020 00:58 UTC
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Date: Wed, 13 May 2020 17:58:43 -0700
From: Martin Thomson <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Add OnPacketReceived to pseudocode (#3653)
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@martinthomson commented on this pull request. Thanks for doing this. I have one tweak that I think you need and maybe a tweak that you want. The first is about the argument and what information is passed. I think that this is just a notification from the main packet processing code, so it doesn't need to include packet processing. The second is more involved and would involve adding more state variables. > @@ -1142,6 +1142,21 @@ Pseudocode for OnPacketSent follows: SetLossDetectionTimer() ~~~ +## On Receiving a Packet + +When a packet is received, it may allow the server to send +if the server was previously amplification limited. + +Psuedocode for OnPacketReceived follows: + +~~~ +OnPacketReceived(packet): + // If this packet unblocks the server, arm the This is fine. The alternative I considered was: ``` if (server and peer address is not validated): was_blocked = aa_bytes_sent >= aa_bytes_received * 3 aa_bytes_received += datagram.size() if was_blocked: SetLossDetectionTimer() ``` But this is fine. In order for that to work, you need to have global state variables for aa_bytes_sent and aa_bytes_received, which you don't otherwise have. > @@ -1142,6 +1142,21 @@ Pseudocode for OnPacketSent follows: SetLossDetectionTimer() ~~~ +## On Receiving a Packet + +When a packet is received, it may allow the server to send +if the server was previously amplification limited. + +Psuedocode for OnPacketReceived follows: + +~~~ +OnPacketReceived(packet): I would drop the argument to this. Because this needs to be a datagram not a packet. That means the function at the end should be called ProcessPackets(datagram) if you keep it. But I would suggest that you don't need to do packet processing in this logic: this is just a function where the loss recovery code is told about what is happening in the main code. -- 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/pull/3653#pullrequestreview-411395226
- [quicwg/base-drafts] Add OnPacketReceived to pseu… ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … Martin Thomson
- Re: [quicwg/base-drafts] Add OnPacketReceived to … Marten Seemann
- Re: [quicwg/base-drafts] Add OnPacketReceived to … Jana Iyengar
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … Martin Thomson
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … Jana Iyengar
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … Jana Iyengar
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett
- Re: [quicwg/base-drafts] Add OnPacketReceived to … ianswett