From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 81374C31E44 for ; Fri, 14 Jun 2019 09:39:42 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5CEBA2082C for ; Fri, 14 Jun 2019 09:39:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5CEBA2082C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:49610 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hbigP-0006fw-GS for qemu-devel@archiver.kernel.org; Fri, 14 Jun 2019 05:39:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40605) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hbieJ-0004gq-2T for qemu-devel@nongnu.org; Fri, 14 Jun 2019 05:37:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hbiZQ-0000t8-Jn for qemu-devel@nongnu.org; Fri, 14 Jun 2019 05:32:29 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41168) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hbiZP-0000sU-AV; Fri, 14 Jun 2019 05:32:27 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6F86E3084213; Fri, 14 Jun 2019 09:32:21 +0000 (UTC) Received: from dhcp-200-226.str.redhat.com (dhcp-200-226.str.redhat.com [10.33.200.226]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 6075839C3; Fri, 14 Jun 2019 09:32:20 +0000 (UTC) Date: Fri, 14 Jun 2019 11:32:19 +0200 From: Kevin Wolf To: Markus Armbruster Message-ID: <20190614093219.GC6042@dhcp-200-226.str.redhat.com> References: <20190613153405.24769-1-kwolf@redhat.com> <87muikedsg.fsf@dusky.pond.sub.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87muikedsg.fsf@dusky.pond.sub.org> User-Agent: Mutt/1.11.3 (2019-02-01) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.40]); Fri, 14 Jun 2019 09:32:21 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: Re: [Qemu-devel] [PATCH v3 00/15] monitor: Split monitor.c in core/HMP/QMP/misc X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: berrange@redhat.com, qemu-devel@nongnu.org, qemu-block@nongnu.org, dgilbert@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Am 14.06.2019 um 11:06 hat Markus Armbruster geschrieben: > Kevin Wolf writes: > > > monitor.c mixes a lot of different things in a single file: The core > > monitor infrastructure, HMP infrastrcture, QMP infrastructure, and the > > implementation of several HMP and QMP commands. Almost worse, struct > > Monitor mixes state for HMP, for QMP, and state actually shared between > > all monitors. monitor.c must be linked with a system emulator and even > > requires per-target compilation because some of the commands it > > implements access system emulator state. > > > > The reason why I care about this is that I'm working on a protoype for a > > storage daemon, which wants to use QMP (but probably not HMP) and > > obviously doesn't have any system emulator state. So I'm interested in > > some core monitor parts that can be linked to non-system-emulator tools. > > > > This series first creates separate structs MonitorQMP and MonitorHMP > > which inherit from Monitor, and then moves the associated infrastructure > > code into separate source files. > > > > While the split is probably not perfect, I think it's an improvement of > > the current state even for QEMU proper, and it's good enough so I can > > link my storage daemon against just monitor/core.o and monitor/qmp.o and > > get a useless QMP monitor that parses the JSON input and rejects > > everything as an unknown command. > > > > Next I'll try to teach it a subset of QMP commands that can actually be > > supported in a tool, but while there will be a few follow-up patches to > > achieve this, I don't expect that this work will bring up much that > > needs to be changed in the splitting process done in this series. > > I think I can address the remaining rather minor issues without a > respin. Please let me know if you disagree with any of my remarks. Feel free to make the changes you suggested, possibly with the exception of the #includes in monitor-internal.h where I think you're only partially right (see my reply there). Please also consider fixing the commit message typo I pointed out for patch 15. Kevin