From patchwork Wed Jan 23 17:27:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= X-Patchwork-Id: 10777621 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D7252139A for ; Wed, 23 Jan 2019 17:33:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B8AB02D71F for ; Wed, 23 Jan 2019 17:33:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AA7262D73C; Wed, 23 Jan 2019 17:33:03 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4F1552D71F for ; Wed, 23 Jan 2019 17:33:03 +0000 (UTC) Received: from localhost ([127.0.0.1]:39094 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gmMOc-0006xP-Ju for patchwork-qemu-devel@patchwork.kernel.org; Wed, 23 Jan 2019 12:33:02 -0500 Received: from eggs.gnu.org ([209.51.188.92]:41928) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gmMKU-0002wY-PR for qemu-devel@nongnu.org; Wed, 23 Jan 2019 12:28:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gmMKT-0002qG-NE for qemu-devel@nongnu.org; Wed, 23 Jan 2019 12:28:46 -0500 Received: from mx1.redhat.com ([209.132.183.28]:45360) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gmMKT-0002pN-FH for qemu-devel@nongnu.org; Wed, 23 Jan 2019 12:28:45 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 89E9D1065; Wed, 23 Jan 2019 17:28:44 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-112-66.ams2.redhat.com [10.36.112.66]) by smtp.corp.redhat.com (Postfix) with ESMTP id 857FB166B9; Wed, 23 Jan 2019 17:28:40 +0000 (UTC) From: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= To: qemu-devel@nongnu.org Date: Wed, 23 Jan 2019 17:27:36 +0000 Message-Id: <20190123172740.32452-13-berrange@redhat.com> In-Reply-To: <20190123172740.32452-1-berrange@redhat.com> References: <20190123172740.32452-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Wed, 23 Jan 2019 17:28:44 +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: [Qemu-devel] [PATCH v2 12/16] chardev: honour the reconnect setting in tcp_chr_wait_connected 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: Laurent Vivier , Thomas Huth , Yongji Xie , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Paolo Bonzini Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP If establishing a client connection fails, the tcp_chr_wait_connected method should sleep for the reconnect timeout and then retry the attempt. This ensures the callers don't immediately abort with an error when the initial connection fails. Reviewed-by: Marc-André Lureau Signed-off-by: Daniel P. Berrangé --- chardev/char-socket.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/chardev/char-socket.c b/chardev/char-socket.c index d6de5d2305..7db20ff0a0 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -957,8 +957,15 @@ static int tcp_chr_wait_connected(Chardev *chr, Error **errp) if (s->is_listen) { tcp_chr_accept_server_sync(chr); } else { - if (tcp_chr_connect_client_sync(chr, errp) < 0) { - return -1; + Error *err = NULL; + if (tcp_chr_connect_client_sync(chr, &err) < 0) { + if (s->reconnect_time) { + error_free(err); + g_usleep(s->reconnect_time * 1000ULL * 1000ULL); + } else { + error_propagate(errp, err); + return -1; + } } } }