From patchwork Thu Jun 4 20:22:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Snow X-Patchwork-Id: 281365 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 585E7C433DF for ; Thu, 4 Jun 2020 20:25:16 +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 259BD206C3 for ; Thu, 4 Jun 2020 20:25:16 +0000 (UTC) Authentication-Results: mail.kernel.org; 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Thu, 4 Jun 2020 20:22:44 +0000 (UTC) Received: from probe.redhat.com (ovpn-117-188.rdu2.redhat.com [10.10.117.188]) by smtp.corp.redhat.com (Postfix) with ESMTP id D09ED5D9D3; Thu, 4 Jun 2020 20:22:43 +0000 (UTC) From: John Snow To: qemu-devel@nongnu.org Subject: [PATCH v3 07/16] python/machine.py: Fix monitor address typing Date: Thu, 4 Jun 2020 16:22:27 -0400 Message-Id: <20200604202236.25039-8-jsnow@redhat.com> In-Reply-To: <20200604202236.25039-1-jsnow@redhat.com> References: <20200604202236.25039-1-jsnow@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.81; envelope-from=jsnow@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/04 01:31:23 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, 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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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" Prior to this, it's difficult for mypy to intuit what the concrete type of the monitor address is; it has difficulty inferring the type across two variables. Create _monitor_address as a property that always returns a valid address to simply static type analysis. To preserve our ability to clean up, use a simple boolean to indicate whether or not we should try to clean up the sock file after execution. Signed-off-by: John Snow --- python/qemu/machine.py | 45 +++++++++++++++++++++++++++--------------- 1 file changed, 29 insertions(+), 16 deletions(-) diff --git a/python/qemu/machine.py b/python/qemu/machine.py index 8ea027566e4..34713ba9b15 100644 --- a/python/qemu/machine.py +++ b/python/qemu/machine.py @@ -25,10 +25,14 @@ import signal import socket import tempfile -from typing import Optional, Type +from typing import ( + Optional, + Type, +) from types import TracebackType from . import qmp +from .qmp import SocketAddrT LOG = logging.getLogger(__name__) @@ -62,7 +66,8 @@ class QEMUMachine: """ def __init__(self, binary, args=None, wrapper=None, name=None, - test_dir="/var/tmp", monitor_address=None, + test_dir="/var/tmp", + monitor_address: Optional[SocketAddrT] = None, socket_scm_helper=None, sock_dir=None): ''' Initialize a QEMUMachine @@ -85,8 +90,14 @@ def __init__(self, binary, args=None, wrapper=None, name=None, if sock_dir is None: sock_dir = test_dir self._name = name - self._monitor_address = monitor_address - self._vm_monitor = None + if monitor_address is not None: + self._monitor_address = monitor_address + self._remove_monitor_sockfile = False + else: + self._monitor_address = os.path.join( + sock_dir, f"{name}-monitor.sock" + ) + self._remove_monitor_sockfile = True self._qemu_log_path = None self._qemu_log_file = None self._popen = None @@ -225,15 +236,17 @@ def _load_io_log(self): def _base_args(self): args = ['-display', 'none', '-vga', 'none'] + if self._qmp_set: if isinstance(self._monitor_address, tuple): - moncdev = "socket,id=mon,host=%s,port=%s" % ( - self._monitor_address[0], - self._monitor_address[1]) + moncdev = "socket,id=mon,host={},port={}".format( + *self._monitor_address + ) else: - moncdev = 'socket,id=mon,path=%s' % self._vm_monitor + moncdev = f"socket,id=mon,path={self._monitor_address}" args.extend(['-chardev', moncdev, '-mon', 'chardev=mon,mode=control']) + if self._machine is not None: args.extend(['-machine', self._machine]) for _ in range(self._console_index): @@ -258,14 +271,14 @@ def _pre_launch(self): self._qemu_log_file = open(self._qemu_log_path, 'wb') if self._qmp_set: - if self._monitor_address is not None: - self._vm_monitor = self._monitor_address - else: - self._vm_monitor = os.path.join(self._sock_dir, - self._name + "-monitor.sock") - self._remove_files.append(self._vm_monitor) - self._qmp = qmp.QEMUMonitorProtocol(self._vm_monitor, server=True, - nickname=self._name) + if self._remove_monitor_sockfile: + assert isinstance(self._monitor_address, str) + self._remove_files.append(self._monitor_address) + self._qmp = qmp.QEMUMonitorProtocol( + self._monitor_address, + server=True, + nickname=self._name + ) def _post_launch(self): if self._qmp: