From patchwork Wed Jun 22 13:32:05 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fam Zheng X-Patchwork-Id: 639202 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3rZQm43Mpzz9sDk for ; Wed, 22 Jun 2016 23:43:32 +1000 (AEST) Received: from localhost ([::1]:58483 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bFiRG-00074Z-FW for incoming@patchwork.ozlabs.org; Wed, 22 Jun 2016 09:43:30 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36657) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bFiFm-0001ap-S7 for qemu-devel@nongnu.org; Wed, 22 Jun 2016 09:31:42 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bFiFl-00006G-0l for qemu-devel@nongnu.org; Wed, 22 Jun 2016 09:31:37 -0400 Received: from mx1.redhat.com ([209.132.183.28]:47792) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bFiFd-000052-Kf; Wed, 22 Jun 2016 09:31:29 -0400 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 40EFDC049D67; Wed, 22 Jun 2016 13:31:29 +0000 (UTC) Received: from lemon.redhat.com (vpn1-7-26.pek2.redhat.com [10.72.7.26]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u5MDVPBS005604; Wed, 22 Jun 2016 09:31:27 -0400 From: Fam Zheng To: qemu-devel@nongnu.org Date: Wed, 22 Jun 2016 21:32:05 +0800 Message-Id: <20160622133206.31842-2-famz@redhat.com> In-Reply-To: <20160622133206.31842-1-famz@redhat.com> References: <20160622133206.31842-1-famz@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Wed, 22 Jun 2016 13:31:29 +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 1/2] osdep: Introduce qemu_dup 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 , qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" And use it in qemu_dup_flags. Signed-off-by: Fam Zheng --- include/qemu/osdep.h | 3 +++ util/osdep.c | 23 +++++++++++++++-------- 2 files changed, 18 insertions(+), 8 deletions(-) diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index e63da28..7361006 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -278,6 +278,9 @@ int qemu_madvise(void *addr, size_t len, int advice); int qemu_open(const char *name, int flags, ...); int qemu_close(int fd); +#ifndef _WIN32 +int qemu_dup(int fd); +#endif #if defined(__HAIKU__) && defined(__i386__) #define FMT_pid "%ld" diff --git a/util/osdep.c b/util/osdep.c index ff004e8..06fb1cf 100644 --- a/util/osdep.c +++ b/util/osdep.c @@ -83,14 +83,7 @@ static int qemu_dup_flags(int fd, int flags) int serrno; int dup_flags; -#ifdef F_DUPFD_CLOEXEC - ret = fcntl(fd, F_DUPFD_CLOEXEC, 0); -#else - ret = dup(fd); - if (ret != -1) { - qemu_set_cloexec(ret); - } -#endif + ret = qemu_dup(fd); if (ret == -1) { goto fail; } @@ -129,6 +122,20 @@ fail: return -1; } +int qemu_dup(int fd) +{ + int ret; +#ifdef F_DUPFD_CLOEXEC + ret = fcntl(fd, F_DUPFD_CLOEXEC, 0); +#else + ret = dup(fd); + if (ret != -1) { + qemu_set_cloexec(ret); + } +#endif + return ret; +} + static int qemu_parse_fdset(const char *param) { return qemu_parse_fd(param);