From patchwork Wed Dec 18 19:17:31 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefano Stabellini X-Patchwork-Id: 303027 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 C43BA2C0079 for ; Thu, 19 Dec 2013 06:18:47 +1100 (EST) Received: from localhost ([::1]:40239 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VtMdo-00085D-RA for incoming@patchwork.ozlabs.org; Wed, 18 Dec 2013 14:18:44 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60185) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VtMdN-00083l-IJ for qemu-devel@nongnu.org; Wed, 18 Dec 2013 14:18:22 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VtMdI-0002Y4-Pv for qemu-devel@nongnu.org; Wed, 18 Dec 2013 14:18:17 -0500 Received: from smtp02.citrix.com ([66.165.176.63]:51224) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VtMdI-0002Xt-LU for qemu-devel@nongnu.org; Wed, 18 Dec 2013 14:18:12 -0500 X-IronPort-AV: E=Sophos;i="4.95,508,1384300800"; d="scan'208";a="83635726" Received: from accessns.citrite.net (HELO FTLPEX01CL03.citrite.net) ([10.9.154.239]) by FTLPIPO02.CITRIX.COM with ESMTP; 18 Dec 2013 19:18:12 +0000 Received: from ukmail1.uk.xensource.com (10.80.16.128) by smtprelay.citrix.com (10.13.107.80) with Microsoft SMTP Server id 14.2.342.4; Wed, 18 Dec 2013 14:18:11 -0500 Received: from kaball.uk.xensource.com ([10.80.2.59]) by ukmail1.uk.xensource.com with esmtp (Exim 4.69) (envelope-from ) id 1VtMdC-0003kt-7k; Wed, 18 Dec 2013 19:18:06 +0000 From: Stefano Stabellini To: Date: Wed, 18 Dec 2013 19:17:31 +0000 Message-ID: <1387394252-9676-1-git-send-email-stefano.stabellini@eu.citrix.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: MIME-Version: 1.0 X-DLP: MIA2 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 66.165.176.63 Cc: anthony.perard@citrix.com, xen-devel@lists.xensource.com, Stefano Stabellini Subject: [Qemu-devel] [PATCH v2 1/2] xen_backend: introduce xenstore_read_uint64 and xenstore_read_fe_uint64 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Signed-off-by: Stefano Stabellini --- Changes in v2: - use SCNu64 instead of PRIu64 with sscanf. --- hw/xen/xen_backend.c | 18 ++++++++++++++++++ include/hw/xen/xen_backend.h | 2 ++ 2 files changed, 20 insertions(+) diff --git a/hw/xen/xen_backend.c b/hw/xen/xen_backend.c index 197795f..c1d7ae5 100644 --- a/hw/xen/xen_backend.c +++ b/hw/xen/xen_backend.c @@ -112,6 +112,19 @@ int xenstore_read_int(const char *base, const char *node, int *ival) return rc; } +int xenstore_read_uint64(const char *base, const char *node, uint64_t *uval) +{ + char *val; + int rc = -1; + + val = xenstore_read_str(base, node); + if (val && 1 == sscanf(val, "%"SCNu64, uval)) { + rc = 0; + } + g_free(val); + return rc; +} + int xenstore_write_be_str(struct XenDevice *xendev, const char *node, const char *val) { return xenstore_write_str(xendev->be, node, val); @@ -147,6 +160,11 @@ int xenstore_read_fe_int(struct XenDevice *xendev, const char *node, int *ival) return xenstore_read_int(xendev->fe, node, ival); } +int xenstore_read_fe_uint64(struct XenDevice *xendev, const char *node, uint64_t *uval) +{ + return xenstore_read_uint64(xendev->fe, node, uval); +} + /* ------------------------------------------------------------- */ const char *xenbus_strstate(enum xenbus_state state) diff --git a/include/hw/xen/xen_backend.h b/include/hw/xen/xen_backend.h index 3b7d96d..3b4125e 100644 --- a/include/hw/xen/xen_backend.h +++ b/include/hw/xen/xen_backend.h @@ -74,6 +74,8 @@ char *xenstore_read_be_str(struct XenDevice *xendev, const char *node); int xenstore_read_be_int(struct XenDevice *xendev, const char *node, int *ival); char *xenstore_read_fe_str(struct XenDevice *xendev, const char *node); int xenstore_read_fe_int(struct XenDevice *xendev, const char *node, int *ival); +int xenstore_read_uint64(const char *base, const char *node, uint64_t *uval); +int xenstore_read_fe_uint64(struct XenDevice *xendev, const char *node, uint64_t *uval); const char *xenbus_strstate(enum xenbus_state state); struct XenDevice *xen_be_find_xendev(const char *type, int dom, int dev);