From: Vincent Hanquez <tab@snarc.org>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: ehabkost@redhat.com, jan.kiszka@siemens.com, dlaor@redhat.com,
qemu-devel@nongnu.org, Luiz Capitulino <lcapitulino@redhat.com>,
Avi Kivity <avi@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 01/11] QMP: Introduce specification file
Date: Wed, 24 Jun 2009 15:06:13 +0100 [thread overview]
Message-ID: <20090624140613.GA15397@snarc.org> (raw)
In-Reply-To: <4A42200C.6060600@codemonkey.ws>
On Wed, Jun 24, 2009 at 07:46:04AM -0500, Anthony Liguori wrote:
> There are two questions to resolve. The first is whether we should
> continue with the current direction (line-based protocol) or whether we
> should switch to an RPC. The second question is which RPC we should use.
well, when choosing simple RPC like xmlrpc or jsonrpc you still need to
do the transport. so it could well be a line-based protocol that happens
to contains query in a JSONRPC or XMLRPC format ... as long as you don't
pretty print JSONRPC or XMLRPC (guaranteed to not contain \n). a bit clunky
but possible.
> I'm not at all convinced that we should switch to an RPC mechanism in
> the first place. Perhaps someone could summarize the advantages of
> doing this because right now, I don't see many.
>
> With respect to RPC choice, if we did go that route, I'd be very
> concerned about using jsonrpc verses a more well established rpc. I
> would honestly prefer xml-rpc over jsonrpc.
while i have a profound distaste of xmlrpc ... i still think that would
be a improvement against the current situation .. or even to QMP.
however you have to keep in mind that xmlrpc means no binary data,
and depending on an XML library (compare to beeing able to pull a very tiny
code base directly in qemu tree)
> One reason to choose an RPC is based on the adoption of it. You want to
> use something that has a vibrant community with well established client
> libraries to make writing clients as easy as possible. Without an
> active jsonrpc C library, it's hard to argue that jsonrpc has that.
> xml-rpc certainly does.
it might be missing for C, but lots of language got a maintained and used
library nowadays. We're using it in ocaml, and i have to say we haven't
been disappointed using it, compared to the number of disappointments with
xmlrpc (and mostly xml in general).
That said, I'll make a C library even if qemu doesn't end up using it.
--
Vincent
next prev parent reply other threads:[~2009-06-24 14:10 UTC|newest]
Thread overview: 199+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1245730845.git.lcapitulino@redhat.com>
2009-06-23 4:28 ` [Qemu-devel] [PATCH 01/11] QMP: Introduce specification file Luiz Capitulino
2009-06-23 8:55 ` [Qemu-devel] " Avi Kivity
2009-06-23 9:57 ` Daniel P. Berrange
2009-06-23 10:08 ` Avi Kivity
2009-06-23 13:22 ` Luiz Capitulino
2009-06-23 13:31 ` Avi Kivity
2009-06-23 13:06 ` Luiz Capitulino
2009-06-23 13:10 ` Daniel P. Berrange
2009-06-23 17:12 ` Luiz Capitulino
2009-06-23 13:27 ` Avi Kivity
2009-06-23 17:15 ` Luiz Capitulino
2009-06-23 13:12 ` Anthony Liguori
2009-06-23 13:30 ` Avi Kivity
2009-06-23 13:34 ` Eduardo Habkost
2009-06-23 13:40 ` Anthony Liguori
2009-06-23 15:01 ` Avi Kivity
2009-06-23 15:47 ` Anthony Liguori
2009-06-23 16:02 ` Avi Kivity
2009-06-23 17:20 ` Luiz Capitulino
2009-06-23 14:45 ` [Qemu-devel] " Vincent Hanquez
2009-06-23 15:56 ` Avi Kivity
2009-06-23 15:56 ` Anthony Liguori
2009-06-23 16:04 ` Avi Kivity
2009-06-23 16:09 ` Anthony Liguori
2009-06-23 16:15 ` Avi Kivity
2009-06-23 18:32 ` Anthony Liguori
2009-06-23 18:47 ` Avi Kivity
2009-06-23 19:00 ` Anthony Liguori
2009-06-23 19:44 ` Avi Kivity
2009-06-23 19:52 ` Avi Kivity
2009-06-23 20:07 ` Anthony Liguori
2009-06-23 20:13 ` Avi Kivity
2009-06-23 22:02 ` Anthony Liguori
2009-06-23 22:02 ` Vincent Hanquez
2009-06-23 22:50 ` Anthony Liguori
2009-06-24 1:01 ` Vincent Hanquez
2009-06-24 11:55 ` James
2009-06-24 12:09 ` Daniel P. Berrange
2009-06-24 12:32 ` James
2009-06-24 12:54 ` Daniel P. Berrange
2009-06-24 14:31 ` Stefano Stabellini
2009-06-24 12:46 ` Anthony Liguori
2009-06-24 13:02 ` Daniel P. Berrange
2009-06-24 13:21 ` Avi Kivity
2009-06-24 13:09 ` Avi Kivity
2009-06-24 16:22 ` Jamie Lokier
2009-06-24 16:25 ` Avi Kivity
2009-06-24 18:52 ` Jamie Lokier
2009-06-24 17:39 ` Vincent Hanquez
2009-06-24 18:23 ` Filip Navara
2009-06-24 18:41 ` Jamie Lokier
2009-06-24 18:42 ` Vincent Hanquez
2009-06-24 18:55 ` Filip Navara
2009-06-24 18:56 ` Jamie Lokier
2009-06-24 13:34 ` Ian Jackson
2009-06-24 16:09 ` Jamie Lokier
2009-06-24 14:03 ` Filip Navara
2009-06-25 19:30 ` Luiz Capitulino
2009-06-24 14:06 ` Vincent Hanquez [this message]
2009-06-24 14:41 ` Stefano Stabellini
2009-06-24 14:56 ` Chris Webb
2009-06-24 19:01 ` Jamie Lokier
2009-06-24 15:57 ` Filip Navara
2009-06-24 16:22 ` Avi Kivity
2009-06-24 16:42 ` Filip Navara
2009-06-24 19:05 ` Jamie Lokier
2009-06-24 19:24 ` Filip Navara
2009-06-24 21:13 ` Jamie Lokier
2009-06-24 21:29 ` Filip Navara
2009-06-24 21:47 ` Jamie Lokier
2009-06-25 13:07 ` Stefano Stabellini
2009-06-25 14:55 ` Avi Kivity
2009-06-25 15:10 ` Anthony Liguori
2009-06-25 15:20 ` Avi Kivity
2009-06-25 17:04 ` Stefano Stabellini
2009-06-25 18:10 ` Anthony Liguori
2009-06-25 19:03 ` Daniel P. Berrange
2009-06-26 9:00 ` Avi Kivity
2009-06-26 9:10 ` Daniel P. Berrange
2009-06-26 9:16 ` Avi Kivity
2009-06-26 9:44 ` Daniel P. Berrange
2009-06-26 11:41 ` Vincent Hanquez
2009-06-25 18:09 ` Anthony Liguori
2009-06-25 18:31 ` Avi Kivity
2009-06-25 19:54 ` Anthony Liguori
2009-06-26 9:12 ` Avi Kivity
2009-06-26 13:21 ` Anthony Liguori
2009-06-26 15:02 ` Anthony Liguori
2009-06-26 17:36 ` Filip Navara
2009-06-26 19:36 ` Anthony Liguori
2009-06-26 20:25 ` Filip Navara
2009-06-28 13:16 ` Avi Kivity
2009-06-28 17:30 ` Anthony Liguori
2009-06-28 17:36 ` Avi Kivity
2009-06-29 9:44 ` Stefano Stabellini
2009-06-29 9:50 ` Avi Kivity
2009-06-29 10:09 ` Stefano Stabellini
2009-06-27 7:03 ` Filip Navara
2009-06-28 12:11 ` Avi Kivity
2009-06-28 13:13 ` Avi Kivity
2009-06-28 17:23 ` Anthony Liguori
2009-06-28 17:34 ` Avi Kivity
2009-06-29 0:42 ` Anthony Liguori
2009-06-29 6:04 ` Avi Kivity
2009-06-29 9:48 ` Stefano Stabellini
2009-06-29 20:23 ` Anthony Liguori
2009-06-30 5:37 ` Avi Kivity
2009-06-30 13:30 ` Anthony Liguori
2009-06-30 13:51 ` Stefano Stabellini
2009-06-30 13:52 ` Avi Kivity
2009-06-30 13:56 ` Anthony Liguori
2009-06-30 14:03 ` Luiz Capitulino
2009-06-30 16:05 ` Avi Kivity
2009-06-30 18:21 ` Anthony Liguori
2009-07-01 8:07 ` Avi Kivity
2009-06-29 14:41 ` Stefano Stabellini
2009-06-29 14:56 ` Avi Kivity
2009-06-28 17:38 ` Filip Navara
2009-06-26 11:36 ` Vincent Hanquez
2009-06-24 16:00 ` Jamie Lokier
2009-06-23 16:20 ` Avi Kivity
2009-06-23 17:59 ` Vincent Hanquez
2009-06-23 15:41 ` Blue Swirl
2009-06-23 4:28 ` [Qemu-devel] [PATCH 02/11] QMP: Introduce MONITOR_USE_CONTROL flag Luiz Capitulino
2009-06-23 4:28 ` [Qemu-devel] [PATCH 03/11] QMP: Introduce protocol print functions Luiz Capitulino
2009-06-23 13:45 ` Anthony Liguori
2009-06-23 13:53 ` Eduardo Habkost
2009-06-23 4:28 ` [Qemu-devel] [PATCH 04/11] QMP: Make monitor_handle_command() QMP aware Luiz Capitulino
2009-06-23 13:51 ` Anthony Liguori
2009-06-23 17:25 ` Luiz Capitulino
2009-06-23 4:29 ` [Qemu-devel] [PATCH 05/11] QMP: Introduce control mode chardev handling Luiz Capitulino
2009-06-23 4:29 ` [Qemu-devel] [PATCH 06/11] QMP: Introduce asynchronous events infrastructure Luiz Capitulino
2009-06-23 8:59 ` [Qemu-devel] " Jan Kiszka
2009-06-23 13:31 ` Luiz Capitulino
2009-06-23 10:08 ` Daniel P. Berrange
2009-06-23 10:11 ` Avi Kivity
2009-06-23 14:46 ` Paul Brook
2009-06-23 10:32 ` Daniel P. Berrange
2009-06-23 11:23 ` Avi Kivity
2009-06-23 13:36 ` Luiz Capitulino
2009-06-23 13:48 ` Eduardo Habkost
2009-06-23 13:51 ` Jan Kiszka
2009-06-23 16:34 ` Avi Kivity
2009-06-23 16:47 ` Daniel P. Berrange
2009-06-23 4:29 ` [Qemu-devel] [PATCH 07/11] QMP: Enable simple commands Luiz Capitulino
2009-06-23 4:29 ` [Qemu-devel] [PATCH 08/11] QMP: Port balloon command Luiz Capitulino
2009-06-23 9:42 ` [Qemu-devel] " Avi Kivity
2009-06-23 13:59 ` Anthony Liguori
2009-06-23 16:36 ` Avi Kivity
2009-06-23 16:58 ` Anthony Liguori
2009-06-23 16:59 ` Luiz Capitulino
2009-06-23 18:38 ` Anthony Liguori
2009-06-25 11:27 ` Dor Laor
2009-06-25 19:11 ` Luiz Capitulino
2009-06-26 9:21 ` Avi Kivity
2009-06-26 9:42 ` Daniel P. Berrange
2009-06-26 11:15 ` Avi Kivity
2009-06-27 15:58 ` Luiz Capitulino
2009-06-28 15:52 ` Avi Kivity
2009-06-28 16:30 ` Blue Swirl
2009-06-28 17:23 ` Filip Navara
2009-06-28 17:43 ` Avi Kivity
2009-06-28 17:51 ` Blue Swirl
2009-06-28 18:36 ` Avi Kivity
2009-06-28 22:11 ` Jamie Lokier
2009-06-25 19:59 ` Anthony Liguori
2009-06-23 4:29 ` [Qemu-devel] [PATCH 09/11] QMP: Port 'info blockstats' command Luiz Capitulino
2009-06-23 9:43 ` [Qemu-devel] " Avi Kivity
2009-06-23 9:59 ` Jan Kiszka
2009-06-23 10:09 ` Avi Kivity
2009-06-23 10:10 ` Jan Kiszka
2009-06-23 14:01 ` [Qemu-devel] " Anthony Liguori
2009-06-23 4:29 ` [Qemu-devel] [PATCH 10/11] QMP: Introduce basic events Luiz Capitulino
2009-06-23 9:46 ` [Qemu-devel] " Avi Kivity
2009-06-23 17:07 ` Luiz Capitulino
2009-06-23 10:06 ` Daniel P. Berrange
2009-06-23 4:30 ` [Qemu-devel] [PATCH 11/11] QMP: Command-line flag to enable control mode Luiz Capitulino
2009-06-23 9:03 ` [Qemu-devel] " Jan Kiszka
2009-06-23 10:04 ` Daniel P. Berrange
2009-06-23 10:11 ` Jan Kiszka
2009-06-23 10:17 ` Avi Kivity
2009-06-23 10:54 ` Jan Kiszka
2009-06-23 11:28 ` Avi Kivity
2009-06-23 11:44 ` Jan Kiszka
2009-06-23 11:51 ` Avi Kivity
2009-06-23 11:53 ` Jan Kiszka
2009-06-23 12:01 ` Avi Kivity
2009-06-23 12:39 ` Jan Kiszka
2009-06-23 12:46 ` Avi Kivity
2009-06-23 12:48 ` Avi Kivity
2009-06-23 11:54 ` Daniel P. Berrange
2009-06-23 11:48 ` Daniel P. Berrange
2009-06-23 12:25 ` Avi Kivity
2009-06-23 14:06 ` Anthony Liguori
2009-06-23 10:19 ` Daniel P. Berrange
2009-06-23 11:13 ` Jan Kiszka
2009-06-23 13:59 ` Luiz Capitulino
2009-06-23 14:06 ` Jan Kiszka
2009-06-23 17:27 ` Luiz Capitulino
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