From: Florian Achleitner <florian.achleitner.2.6.31@gmail.com>
To: Jonathan Nieder <jrnieder@gmail.com>
Cc: Florian Achleitner <florian.achleitner.2.6.31@gmail.com>,
git@vger.kernel.org, David Michael Barr <davidbarr@google.com>,
Sverre Rabbelier <srabbelier@gmail.com>,
Jeff King <peff@peff.net>, Johannes Sixt <j.sixt@viscovery.net>
Subject: Re: [RFC 1/4 v2] Implement a basic remote helper for svn in C.
Date: Mon, 30 Jul 2012 15:55:14 +0200 [thread overview]
Message-ID: <19477122.a5lMBqWgns@flomedio> (raw)
In-Reply-To: <20120730082951.GA7702@burratino>
On Monday 30 July 2012 03:29:52 Jonathan Nieder wrote:
> > Generally I like your prefered solution.
> > I think there's one problem:
> > The pipe needs to be created before the fork, so that the fd can be
> > inherited.
> The relevant pipe already exists at that point: the remote helper's
> stdin.
>
> In other words, it could work like this (just like the existing demo
> code, except adding a conditional based on the "capabilities"
> response):
>
> 0. transport-helper.c invokes the remote helper. This requires
> a pipe used to send commands to the remote helper
> (helper->in) and a pipe used to receive responses from the
> remote helper (helper->out)
>
> 1. transport-helper.c sends the "capabilities" command to decide
> what to do. The remote helper replies that it would like
> some feedback from fast-import.
>
> 2. transport-helper.c forks and execs git fast-import with input
> redirected from helper->out and the cat-blob fd redirected
> to helper->in
fast-import writes to the helpers stdin..
> 3. transport-helper.c tells the remote helper to start the
> import
transport-helper writes commands to the helper's stdin.
>
> 4. wait for fast-import to exit
Hm .. that would mean, that both fast-import and git (transport-helper) would
write to the remote-helper's stdin, right?
next prev parent reply other threads:[~2012-07-30 13:55 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-04 17:20 [RFC 0/4] Florian Achleitner
2012-06-04 17:20 ` [RFC 1/4] Implement a basic remote helper vor svn in C Florian Achleitner
2012-06-04 17:20 ` [RFC 2/4] Integrate remote-svn into svn-fe/Makefile Florian Achleitner
2012-06-04 17:20 ` [RFC 3/4] Add svndump_init_fd to allow reading dumps from arbitrary FDs Florian Achleitner
2012-06-04 17:20 ` [RFC 4/4] Add cat-blob report pipe from fast-import to remote-helper Florian Achleitner
2012-06-05 1:33 ` David Michael Barr
2012-06-05 6:56 ` Jeff King
2012-06-05 7:07 ` David Michael Barr
2012-06-05 8:14 ` Jeff King
2012-06-05 22:16 ` Florian Achleitner
2012-06-06 13:43 ` Jeff King
2012-06-06 21:04 ` Florian Achleitner
2012-06-05 8:51 ` Johannes Sixt
2012-06-05 9:07 ` Jeff King
2012-06-05 22:17 ` Florian Achleitner
2012-06-05 9:09 ` Johannes Sixt
2012-06-05 1:21 ` [RFC 3/4] Add svndump_init_fd to allow reading dumps from arbitrary FDs David Michael Barr
2012-06-29 7:49 ` [RFC 0/4 v2] Florian Achleitner
2012-06-29 7:54 ` [RFC 1/4 v2] Implement a basic remote helper for svn in C Florian Achleitner
2012-07-02 11:07 ` Jonathan Nieder
2012-07-06 0:30 ` Jonathan Nieder
2012-07-06 10:39 ` Florian Achleitner
2012-07-26 8:31 ` Florian Achleitner
2012-07-26 9:08 ` Jonathan Nieder
2012-07-26 16:16 ` Florian Achleitner
2012-07-28 7:00 ` Jonathan Nieder
2012-07-30 8:12 ` Florian Achleitner
2012-07-30 8:29 ` Jonathan Nieder
2012-07-30 13:55 ` Florian Achleitner [this message]
2012-07-30 16:55 ` Jonathan Nieder
2012-07-31 19:31 ` Florian Achleitner
2012-07-31 22:43 ` Jonathan Nieder
2012-08-01 8:25 ` Florian Achleitner
2012-08-01 19:42 ` Jonathan Nieder
2012-08-12 10:06 ` Florian Achleitner
2012-08-12 16:12 ` Jonathan Nieder
2012-08-12 19:39 ` Florian Achleitner
2012-08-12 20:10 ` Jonathan Nieder
2012-08-12 19:36 ` Jonathan Nieder
2012-07-26 17:29 ` Junio C Hamano
2012-07-30 8:12 ` Florian Achleitner
2012-07-26 9:45 ` Steven Michalske
[not found] ` <358E6F1E-8BAD-4F82-B270-0233AB86EF66@gmail.com>
2012-07-26 11:40 ` Jonathan Nieder
2012-07-26 14:28 ` Florian Achleitner
2012-07-26 14:54 ` Jonathan Nieder
2012-07-27 7:23 ` Florian Achleitner
2012-07-28 6:54 ` Jonathan Nieder
2012-06-29 7:58 ` [RFC 2/4 v2] Integrate remote-svn into svn-fe/Makefile Florian Achleitner
2012-06-29 7:59 ` [RFC 3/4 v2] Add svndump_init_fd to allow reading dumps from arbitrary FDs Florian Achleitner
2012-06-29 8:00 ` [RFC 4/4 v2] Add cat-blob report fifo from fast-import to remote-helper Florian Achleitner
2012-07-21 12:45 ` [RFC 4/4 v3] " Florian Achleitner
2012-07-21 14:48 ` Jonathan Nieder
2012-07-21 15:24 ` Florian Achleitner
2012-07-21 15:44 ` Jonathan Nieder
2012-07-22 21:03 ` Florian Achleitner
2012-07-22 21:24 ` Jonathan Nieder
2012-07-21 15:58 ` Jonathan Nieder
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