From: Junio C Hamano <gitster@pobox.com>
To: Jeff King <peff@peff.net>
Cc: Jonathan Nieder <jrnieder@gmail.com>,
git@vger.kernel.org, "Shawn O. Pearce" <spearce@spearce.org>
Subject: Re: [PATCHv2 0/10] pkt-line and remote-curl cleanups server
Date: Mon, 18 Feb 2013 01:29:16 -0800 [thread overview]
Message-ID: <7vhalaas2b.fsf@alter.siamese.dyndns.org> (raw)
In-Reply-To: <20130218091203.GB17003@sigill.intra.peff.net> (Jeff King's message of "Mon, 18 Feb 2013 04:12:03 -0500")
Jeff King <peff@peff.net> writes:
> On Sun, Feb 17, 2013 at 05:41:13PM -0800, Jonathan Nieder wrote:
>
>> > I don't think so. Don't ERR lines appear inside their own packets?
>>
>> Yes, I misread get_remote_heads for some reason. Thanks for checking.
>
> Thanks for bringing it up. I had not even thought about ERR at all. So
> it was luck rather than skill that I was right. :)
>
>> I'm not sure whether servers are expected to send a flush after an
>> ERR packet. The only codepath I know of in git itself that sends
>> such packets is git-daemon, which does not flush after the error (but
>> is not used in the stateless-rpc case). http-backend uses HTTP error
>> codes for its errors.
>
> I just checked, and GitHub also does not send flush packets after ERR.
> Which makes sense; ERR is supposed to end the conversation.
Hmph. A flush packet was supposed to be a mark to say "all the
packets before this one can be buffered and kept without getting
passed to write(2), but this and all such buffered data _must_ go on
the wire _now_". So in the sense, ERR not followed by a flush may
not even have a chance to be seen on the other end, no? That is
what the comment before the implementation of packet_flush() is all
about.
next prev parent reply other threads:[~2013-02-18 9:29 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-16 6:44 [PATCH 0/3] make smart-http more robust against bogus server input Jeff King
2013-02-16 6:46 ` [PATCH 1/3] pkt-line: teach packet_get_line a no-op mode Jeff King
2013-02-17 10:41 ` Jonathan Nieder
2013-02-16 6:47 ` [PATCH 2/3] remote-curl: verify smart-http metadata lines Jeff King
2013-02-17 10:49 ` Jonathan Nieder
2013-02-17 19:14 ` Jeff King
2013-02-18 0:54 ` Jonathan Nieder
2013-02-18 8:59 ` Jeff King
2013-02-16 6:49 ` [PATCH 3/3] remote-curl: sanity check ref advertisement from server Jeff King
2013-02-17 11:05 ` Jonathan Nieder
2013-02-17 19:28 ` Jeff King
2013-02-18 1:41 ` Jonathan Nieder
2013-02-18 9:12 ` [PATCHv2 0/10] pkt-line and remote-curl cleanups server Jeff King
2013-02-18 9:14 ` [PATCHv2 01/10] pkt-line: move a misplaced comment Jeff King
2013-02-18 9:15 ` [PATCHv2 02/10] pkt-line: drop safe_write function Jeff King
2013-02-18 9:56 ` Jonathan Nieder
2013-02-18 10:24 ` Jeff King
2013-02-18 9:16 ` [PATCHv2 03/10] pkt-line: clean up "gentle" reading function Jeff King
2013-02-18 10:12 ` Jonathan Nieder
2013-02-18 10:25 ` Jeff King
2013-02-18 9:22 ` [PATCHv2 04/10] pkt-line: change error message for oversized packet Jeff King
2013-02-18 9:40 ` Junio C Hamano
2013-02-18 9:49 ` Jeff King
2013-02-18 21:25 ` Junio C Hamano
2013-02-18 21:33 ` Jeff King
2013-02-20 8:47 ` Jeff King
2013-02-20 8:54 ` Junio C Hamano
2013-02-18 10:15 ` Jonathan Nieder
2013-02-18 10:26 ` Jeff King
2013-02-18 9:22 ` [PATCHv2 05/10] pkt-line: rename s/packet_read_line/packet_read/ Jeff King
2013-02-18 10:19 ` Jonathan Nieder
2013-02-18 10:29 ` Jeff King
2013-02-18 11:05 ` Jonathan Nieder
2013-02-18 9:26 ` [PATCHv2 06/10] pkt-line: share buffer/descriptor reading implementation Jeff King
2013-02-18 10:43 ` Jonathan Nieder
2013-02-18 10:48 ` Jeff King
2013-02-18 10:54 ` Jonathan Nieder
2013-02-18 9:27 ` [PATCHv2 07/10] teach get_remote_heads to read from a memory buffer Jeff King
2013-02-18 9:29 ` [PATCHv2 08/10] remote-curl: pass buffer straight to get_remote_heads Jeff King
2013-02-18 10:47 ` Jonathan Nieder
2013-02-18 9:29 ` Junio C Hamano [this message]
2013-02-18 9:33 ` [PATCHv2 0/10] pkt-line and remote-curl cleanups server Jeff King
2013-02-18 9:49 ` Junio C Hamano
2013-02-18 9:55 ` Jeff King
2013-02-20 7:14 ` Shawn Pearce
2013-02-18 9:29 ` [PATCHv2 09/10] remote-curl: move ref-parsing code up in file Jeff King
2013-02-18 9:30 ` [PATCHv2 10/10] remote-curl: always parse incoming refs Jeff King
2013-02-18 10:50 ` Jonathan Nieder
2013-02-20 7:41 ` Shawn Pearce
2013-02-20 7:05 ` [PATCHv2 0/10] pkt-line and remote-curl cleanups server Shawn Pearce
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