From nobody Sun Feb 8 19:44:19 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=126.com ARC-Seal: i=1; a=rsa-sha256; t=1663771561; cv=none; d=zohomail.com; s=zohoarc; b=KbB+Ur/9LK+zPYACU/DRNV8SUTB3so84PTpUfQdTizCEmx35JFfGUj+yEwzpQjvKyG1Vrz11wXD0P5HP4GhZcsTHqmS+rXvDJFpMawLfAmk1KL+MPGTfP7zVIqFwAEWI94F7ah0ZCanvGF+9SYfDsJQ6+7EnJlaX8lINvvenjKM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1663771561; h=Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:Sender:Subject:To; bh=PrMxuYAxIaMfkKDctO2Z5uggG9AFjdKzrLzrBsh3uGM=; b=IAXFI2uoAX2Ka20PXqQC8uhqbLULZ8iw2sJdk7uNh8z35ShO1LJOHcY1yalF1PaFZuDN0/TXP/d8XId05+mrnAIlyUVaUzT+s8hqB3onyvZPqe7tAcc7QQo/0uBk4Ke8z6nPK6/HVGheRgCAUPs7tvP52NEq7mZQgBe98Aam+jk= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1663771561301889.6385006693444; Wed, 21 Sep 2022 07:46:01 -0700 (PDT) Received: from localhost ([::1]:33038 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ob0z9-0000GS-Qq for importer@patchew.org; Wed, 21 Sep 2022 10:45:59 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52972) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oavDk-0008TB-J8 for qemu-devel@nongnu.org; Wed, 21 Sep 2022 04:36:40 -0400 Received: from m15114.mail.126.com ([220.181.15.114]:25301) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oavDb-0007wY-Gd for qemu-devel@nongnu.org; Wed, 21 Sep 2022 04:36:37 -0400 Received: from master.localdomain (unknown [117.160.246.157]) by smtp7 (Coremail) with SMTP id DsmowABnkJoCzSpjYTDVBw--.7217S2; Wed, 21 Sep 2022 16:36:19 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=126.com; s=s110527; h=From:Subject:Date:Message-Id; bh=PrMxuYAxIaMfkKDctO 2Z5uggG9AFjdKzrLzrBsh3uGM=; b=DbeVv8+CiSFb1OzvMLU+WlonSWO+qLsyE0 l+jiZ3iPI2nTRPXPRTQYBXZ6TiZTFpse6S02mwWgu119nw1MBgo2gxuwovZdHzbn +KgnTKPk2rMmtAp4GFF0Q2LE8NMQsPrDLWJ5IiKPatS3N95llq7WrxXV2Ub9zZWN EgDc/UiME= From: songlinfeng To: qemu-devel@nongnu.org Cc: eblake@redhat.com, songlinfeng Subject: [PATCH] add keepalive for qemu-nbd Date: Wed, 21 Sep 2022 16:36:09 +0800 Message-Id: <1663749369-3057-1-git-send-email-slf553@126.com> X-Mailer: git-send-email 1.8.3.1 X-CM-TRANSID: DsmowABnkJoCzSpjYTDVBw--.7217S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7CFW3Zr1rurW7GF45WFyrCrg_yoW8CrWkpF yDAFy5KrWrC347u3sIvasxJr1avrs5JryUXr9rGrn2yFsrKr40qFZ2yr909F13WrWqv3ya kry0gF10vFn5ZFJanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07j1hFcUUUUU= X-Originating-IP: [117.160.246.157] X-CM-SenderInfo: 5voikkat6rjloofrz/1tbiLQ2DtVpD-lEK-AABsX Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=220.181.15.114; envelope-from=slf553@126.com; helo=m15114.mail.126.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Wed, 21 Sep 2022 10:31:51 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @126.com) X-ZM-MESSAGEID: 1663771562132100001 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: songlinfeng we want to export a image with qemu-nbd as server, in client we use libnbd = to connect qemu-nbd,but when client power down,the server is still working. qemu-nbd will exit when last client exit.so,we still want server exit when = client power down.maybe qmp can handle it,but i don't know how to do . Signed-off-by: songlinfeng --- qemu-nbd.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/qemu-nbd.c b/qemu-nbd.c index 0cd5aa6..115ef2b 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -20,7 +20,8 @@ #include #include #include - +#include +#include #include "qemu/help-texts.h" #include "qapi/error.h" #include "qemu/cutils.h" @@ -365,6 +366,26 @@ static void nbd_accept(QIONetListener *listener, QIOCh= annelSocket *cioc, nb_fds++; nbd_update_server_watch(); nbd_client_new(cioc, tlscreds, tlsauthz, nbd_client_closed); + int tcp_keepalive_intvl =3D 5; + int tcp_keepalive_probes =3D 5; + int tcp_keepalive_time =3D 60; + int tcp_keepalive_on =3D 1; + if (setsockopt(cioc->fd, SOL_TCP, TCP_KEEPINTVL, + &tcp_keepalive_intvl, sizeof(tcp_keepalive_intvl)) < 0)= { + perror("setsockopt failed\n"); + } + if (setsockopt(cioc->fd, SOL_TCP, TCP_KEEPCNT, + &tcp_keepalive_probes, sizeof(tcp_keepalive_probes)) < = 0) { + perror("setsockopt failed\n"); + } + if (setsockopt(cioc->fd, SOL_TCP, TCP_KEEPIDLE, + &tcp_keepalive_time, sizeof(tcp_keepalive_time)) < 0) { + perror("setsockopt failed\n"); + } + if (setsockopt(cios->fd, SOL_SOCKET, SO_KEEPALIVE, + &tcp_keepalive_on, sizeof(tcp_keepalive_on)) < 0) { + perror("setsockopt failed\n"); + } } =20 static void nbd_update_server_watch(void) --=20 1.8.3.1