From nobody Mon Feb 9 20:34:45 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1502787763657516.9467439010375; Tue, 15 Aug 2017 02:02:43 -0700 (PDT) Received: from localhost ([::1]:47101 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dhXkI-0007Pz-Fy for importer@patchew.org; Tue, 15 Aug 2017 05:02:42 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56998) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dhXfy-0002w9-BL for qemu-devel@nongnu.org; Tue, 15 Aug 2017 04:58:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dhXfx-0006gR-8l for qemu-devel@nongnu.org; Tue, 15 Aug 2017 04:58:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:47802) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dhXfw-0006g8-Vb for qemu-devel@nongnu.org; Tue, 15 Aug 2017 04:58:13 -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 DD00D6881A; Tue, 15 Aug 2017 08:58:11 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-204-136.brq.redhat.com [10.40.204.136]) by smtp.corp.redhat.com (Postfix) with ESMTP id DE0AF5D75B; Tue, 15 Aug 2017 08:58:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com DD00D6881A Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=ldoktor@redhat.com From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Doktor?= To: qemu-devel@nongnu.org Date: Tue, 15 Aug 2017 10:57:28 +0200 Message-Id: <20170815085732.9794-7-ldoktor@redhat.com> In-Reply-To: <20170815085732.9794-1-ldoktor@redhat.com> References: <20170815085732.9794-1-ldoktor@redhat.com> MIME-Version: 1.0 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 [10.5.110.28]); Tue, 15 Aug 2017 08:58:12 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v5 06/10] qmp.py: Couple of pylint/style fixes X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ldoktor@redhat.com, famz@redhat.com, ehabkost@redhat.com, apahim@redhat.com, armbru@redhat.com, mreitz@redhat.com, jsnow@redhat.com, f4bug@amsat.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" No actual code changes, just initializing attributes earlier to avoid AttributeError on early introspection, a few pylint/style fixes and docstring clarifications. Signed-off-by: Luk=C3=A1=C5=A1 Doktor Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- scripts/qmp/qmp.py | 37 ++++++++++++++++++++++++------------- 1 file changed, 24 insertions(+), 13 deletions(-) diff --git a/scripts/qmp/qmp.py b/scripts/qmp/qmp.py index 62d3651..782d1ac 100644 --- a/scripts/qmp/qmp.py +++ b/scripts/qmp/qmp.py @@ -13,19 +13,30 @@ import errno import socket import sys =20 + class QMPError(Exception): pass =20 + class QMPConnectError(QMPError): pass =20 + class QMPCapabilitiesError(QMPError): pass =20 + class QMPTimeoutError(QMPError): pass =20 + class QEMUMonitorProtocol: + + #: Socket's error class + error =3D socket.error + #: Socket's timeout + timeout =3D socket.timeout + def __init__(self, address, server=3DFalse, debug=3DFalse): """ Create a QEMUMonitorProtocol class. @@ -42,6 +53,7 @@ class QEMUMonitorProtocol: self.__address =3D address self._debug =3D debug self.__sock =3D self.__get_sock() + self.__sockfile =3D None if server: self.__sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,= 1) self.__sock.bind(self.__address) @@ -56,7 +68,7 @@ class QEMUMonitorProtocol: =20 def __negotiate_capabilities(self): greeting =3D self.__json_read() - if greeting is None or not greeting.has_key('QMP'): + if greeting is None or "QMP" not in greeting: raise QMPConnectError # Greeting seems ok, negotiate capabilities resp =3D self.cmd('qmp_capabilities') @@ -78,8 +90,6 @@ class QEMUMonitorProtocol: continue return resp =20 - error =3D socket.error - def __get_events(self, wait=3DFalse): """ Check for new events in the stream and cache them in __events. @@ -89,8 +99,8 @@ class QEMUMonitorProtocol: =20 @raise QMPTimeoutError: If a timeout float is provided and the tim= eout period elapses. - @raise QMPConnectError: If wait is True but no events could be ret= rieved - or if some other error occurred. + @raise QMPConnectError: If wait is True but no events could be + retrieved or if some other error occurred. """ =20 # Check for new events regardless and pull them into the cache: @@ -175,7 +185,7 @@ class QEMUMonitorProtocol: @param args: command arguments (dict) @param id: command id (dict, list, string or int) """ - qmp_cmd =3D { 'execute': name } + qmp_cmd =3D {'execute': name} if args: qmp_cmd['arguments'] =3D args if id: @@ -183,6 +193,9 @@ class QEMUMonitorProtocol: return self.cmd_obj(qmp_cmd) =20 def command(self, cmd, **kwds): + """ + Build and send a QMP command to the monitor, report errors if any + """ ret =3D self.cmd(cmd, kwds) if ret.has_key('error'): raise Exception(ret['error']['desc']) @@ -190,15 +203,15 @@ class QEMUMonitorProtocol: =20 def pull_event(self, wait=3DFalse): """ - Get and delete the first available QMP event. + Pulls a single event. =20 @param wait (bool): block until an event is available. @param wait (float): If wait is a float, treat it as a timeout val= ue. =20 @raise QMPTimeoutError: If a timeout float is provided and the tim= eout period elapses. - @raise QMPConnectError: If wait is True but no events could be ret= rieved - or if some other error occurred. + @raise QMPConnectError: If wait is True but no events could be + retrieved or if some other error occurred. =20 @return The first available QMP event, or None. """ @@ -217,8 +230,8 @@ class QEMUMonitorProtocol: =20 @raise QMPTimeoutError: If a timeout float is provided and the tim= eout period elapses. - @raise QMPConnectError: If wait is True but no events could be ret= rieved - or if some other error occurred. + @raise QMPConnectError: If wait is True but no events could be + retrieved or if some other error occurred. =20 @return The list of available QMP events. """ @@ -235,8 +248,6 @@ class QEMUMonitorProtocol: self.__sock.close() self.__sockfile.close() =20 - timeout =3D socket.timeout - def settimeout(self, timeout): self.__sock.settimeout(timeout) =20 --=20 2.9.4