From patchwork Fri Jul 10 05:22:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: John Snow X-Patchwork-Id: 278146 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=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 D0AA7C433E0 for ; Fri, 10 Jul 2020 05:23:55 +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 9B85E2076A for ; Fri, 10 Jul 2020 05:23:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Ud58ojQL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9B85E2076A 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]:39814 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jtlVq-0000zO-Pe for qemu-devel@archiver.kernel.org; Fri, 10 Jul 2020 01:23:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50716) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jtlUX-0007ID-KQ for qemu-devel@nongnu.org; Fri, 10 Jul 2020 01:22:33 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:22082 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jtlUW-0008DD-30 for qemu-devel@nongnu.org; Fri, 10 Jul 2020 01:22:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1594358551; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5G6lYDMDML75Gjj0qFiqI+XPtpp1YQeLwcWxPKSlt5U=; b=Ud58ojQLLKlyEx+za8mJvLUoHWsf59xAwNL33+bkcEiEE1Jb8CnqdD/h5cXzQVGXqX/Sj6 GkGbHaTxjD0Kj01aoVbahxNa84x9NPGQZDVMXCIDUColvH+r3Sho6YZfgIPgJnnBWP32li M633glyx7SXxdbjbVq5LY/JbWRMDHfw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-325-h40SkHSZMxGIe2XPQOfLvg-1; Fri, 10 Jul 2020 01:22:26 -0400 X-MC-Unique: h40SkHSZMxGIe2XPQOfLvg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id B08D08027E7; Fri, 10 Jul 2020 05:22:25 +0000 (UTC) Received: from probe.redhat.com (ovpn-118-196.rdu2.redhat.com [10.10.118.196]) by smtp.corp.redhat.com (Postfix) with ESMTP id AEBF0920CA; Fri, 10 Jul 2020 05:22:24 +0000 (UTC) From: John Snow To: qemu-devel@nongnu.org Subject: [PATCH v5 03/16] python/qmp.py: re-absorb MonitorResponseError Date: Fri, 10 Jul 2020 01:22:07 -0400 Message-Id: <20200710052220.3306-4-jsnow@redhat.com> In-Reply-To: <20200710052220.3306-1-jsnow@redhat.com> References: <20200710052220.3306-1-jsnow@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.120; envelope-from=jsnow@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/10 00:36:21 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action 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: Kevin Wolf , Eduardo Habkost , qemu-block@nongnu.org, John Snow , Max Reitz , Cleber Rosa , philmd@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" When I initially split this out, I considered this more of a machine error than a QMP protocol error, but I think that's misguided. Move this back to qmp.py and name it QMPResponseError. Convert qmp.command() to use this exception type. Signed-off-by: John Snow Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Kevin Wolf --- python/qemu/machine.py | 15 +-------------- python/qemu/qmp.py | 17 +++++++++++++++-- scripts/render_block_graph.py | 7 +++++-- 3 files changed, 21 insertions(+), 18 deletions(-) diff --git a/python/qemu/machine.py b/python/qemu/machine.py index d08a8e4a6e..8ca3d508df 100644 --- a/python/qemu/machine.py +++ b/python/qemu/machine.py @@ -55,19 +55,6 @@ class AbnormalShutdown(QEMUMachineError): """ -class MonitorResponseError(qmp.QMPError): - """ - Represents erroneous QMP monitor reply - """ - def __init__(self, reply): - try: - desc = reply["error"]["desc"] - except KeyError: - desc = reply - super().__init__(desc) - self.reply = reply - - class QEMUMachine: """ A QEMU VM @@ -519,7 +506,7 @@ def command(self, cmd, conv_keys=True, **args): if reply is None: raise qmp.QMPError("Monitor is closed") if "error" in reply: - raise MonitorResponseError(reply) + raise qmp.QMPResponseError(reply) return reply["return"] def get_qmp_event(self, wait=False): diff --git a/python/qemu/qmp.py b/python/qemu/qmp.py index 8388c7b603..aa8a666b8a 100644 --- a/python/qemu/qmp.py +++ b/python/qemu/qmp.py @@ -61,6 +61,19 @@ class QMPTimeoutError(QMPError): """ +class QMPResponseError(QMPError): + """ + Represents erroneous QMP monitor reply + """ + def __init__(self, reply: QMPMessage): + try: + desc = reply['error']['desc'] + except KeyError: + desc = reply + super().__init__(desc) + self.reply = reply + + class QEMUMonitorProtocol: """ Provide an API to connect to QEMU via QEMU Monitor Protocol (QMP) and then @@ -251,8 +264,8 @@ def command(self, cmd, **kwds): Build and send a QMP command to the monitor, report errors if any """ ret = self.cmd(cmd, kwds) - if "error" in ret: - raise Exception(ret['error']['desc']) + if 'error' in ret: + raise QMPResponseError(ret) return ret['return'] def pull_event(self, wait=False): diff --git a/scripts/render_block_graph.py b/scripts/render_block_graph.py index 409b4321f2..da6acf050d 100755 --- a/scripts/render_block_graph.py +++ b/scripts/render_block_graph.py @@ -25,7 +25,10 @@ from graphviz import Digraph sys.path.append(os.path.join(os.path.dirname(__file__), '..', 'python')) -from qemu.machine import MonitorResponseError +from qemu.qmp import ( + QEMUMonitorProtocol, + QMPResponseError, +) def perm(arr): @@ -102,7 +105,7 @@ def command(self, cmd): reply = json.loads(subprocess.check_output(ar)) if 'error' in reply: - raise MonitorResponseError(reply) + raise QMPResponseError(reply) return reply['return']