From nobody Sun Oct 5 19:25:51 2025 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 1504116742047173.96126603911932; Wed, 30 Aug 2017 11:12:22 -0700 (PDT) Received: from localhost ([::1]:52064 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dn7TP-0006Ip-RX for importer@patchew.org; Wed, 30 Aug 2017 14:12:19 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53044) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dn7Og-0001qX-Bv for qemu-devel@nongnu.org; Wed, 30 Aug 2017 14:07:29 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dn7Of-0001aM-IT for qemu-devel@nongnu.org; Wed, 30 Aug 2017 14:07:26 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44935) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dn7Od-0001ZF-7Q; Wed, 30 Aug 2017 14:07:23 -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 4EB99C0587E5; Wed, 30 Aug 2017 18:07:22 +0000 (UTC) Received: from red.redhat.com (ovpn-122-186.rdu2.redhat.com [10.10.122.186]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2FD91173A6; Wed, 30 Aug 2017 18:07:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 4EB99C0587E5 Authentication-Results: ext-mx08.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx08.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=eblake@redhat.com From: Eric Blake To: qemu-devel@nongnu.org Date: Wed, 30 Aug 2017 13:07:03 -0500 Message-Id: <20170830180711.7974-4-eblake@redhat.com> In-Reply-To: <20170830180711.7974-1-eblake@redhat.com> References: <20170830180711.7974-1-eblake@redhat.com> 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 [10.5.110.32]); Wed, 30 Aug 2017 18:07:22 +0000 (UTC) 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] [PULL 03/11] qemu-iotests: improve nbd-fault-injector.py startup protocol 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: Kevin Wolf , "open list:Block layer core" , Stefan Hajnoczi , Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Stefan Hajnoczi Currently 083 waits for the nbd-fault-injector.py server to start up by looping until netstat shows the TCP listen socket. The startup protocol can be simplified by passing a 0 port number to nbd-fault-injector.py. The kernel will allocate a port in bind(2) and the final port number can be printed by nbd-fault-injector.py. This should make it slightly nicer and less TCP-specific to wait for server startup. This patch changes nbd-fault-injector.py, the next one will rewrite server startup in 083. Reviewed-by: Eric Blake Signed-off-by: Stefan Hajnoczi Message-Id: <20170829122745.14309-3-stefanha@redhat.com> Signed-off-by: Eric Blake --- tests/qemu-iotests/nbd-fault-injector.py | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tests/qemu-iotests/nbd-fault-injector.py b/tests/qemu-iotests/= nbd-fault-injector.py index 6c07191a5a..1c10dcb51c 100755 --- a/tests/qemu-iotests/nbd-fault-injector.py +++ b/tests/qemu-iotests/nbd-fault-injector.py @@ -235,11 +235,15 @@ def open_socket(path): sock =3D socket.socket() sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) sock.bind((host, int(port))) + + # If given port was 0 the final port number is now available + path =3D '%s:%d' % sock.getsockname() else: sock =3D socket.socket(socket.AF_UNIX) sock.bind(path) sock.listen(0) print 'Listening on %s' % path + sys.stdout.flush() # another process may be waiting, show message now return sock def usage(args): --=20 2.13.5