From patchwork Wed Oct 21 07:15:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 302413 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2AEEEC4363A for ; Wed, 21 Oct 2020 07:18:19 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 557A3221FC for ; Wed, 21 Oct 2020 07:18:18 +0000 (UTC) Authentication-Results: mail.kernel.org; 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Wed, 21 Oct 2020 07:15:25 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-112-182.ams2.redhat.com [10.36.112.182]) by smtp.corp.redhat.com (Postfix) with ESMTPS id CB35810013D0; Wed, 21 Oct 2020 07:15:21 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 22718112991E; Wed, 21 Oct 2020 09:15:20 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH 2/4] qga: Use common time encoding for guest-get-devices 'driver-date' Date: Wed, 21 Oct 2020 09:15:18 +0200 Message-Id: <20201021071520.2168877-3-armbru@redhat.com> In-Reply-To: <20201021071520.2168877-1-armbru@redhat.com> References: <20201021071520.2168877-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/21 02:16:02 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: marcandre.lureau@redhat.com, tgolembi@redhat.com, philmd@redhat.com, mdroth@linux.vnet.ibm.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" guest-get-devices returns 'driver-date' as string in the format YYYY-MM-DD. Goes back to recent commit 2e4211cee4 "qga: add command guest-get-devices for reporting VirtIO devices". We should avoid use of multiple encodings for the same kind of data. Especially string encodings. Change it to return nanoseconds since the epoch, like guest-get-time does. Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Signed-off-by: Markus Armbruster <armbru@redhat.com>

I think I assumed it was free form human-friendly string, but it has a strict YYYY-MM-DD format in the doc, so let's use the existing one instead.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>

 
--- qga/qapi-schema.json | 4 ++-- qga/commands-win32.c | 19 +++++++++++-------- 2 files changed, 13 insertions(+), 10 deletions(-) diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index f2c81cda2b..c7bfb8bf6a 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -1282,7 +1282,7 @@ # @GuestDeviceInfo: # # @driver-name: name of the associated driver -# @driver-date: driver release date in format YYYY-MM-DD +# @driver-date: driver release date, in nanoseconds since the epoch # @driver-version: driver version # @id: device ID # @@ -1291,7 +1291,7 @@ { 'struct': 'GuestDeviceInfo', 'data': { 'driver-name': 'str', - '*driver-date': 'str', + '*driver-date': 'int', '*driver-version': 'str', '*id': 'GuestDeviceId' } } diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 879b02b6c3..b01616a992 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -1641,6 +1641,12 @@ out: return head; } +static int64_t filetime_to_ns(const FILETIME *tf) +{ + return ((((int64_t)tf->dwHighDateTime << 32) | tf->dwLowDateTime) + - W32_FT_OFFSET) * 100; +} + int64_t qmp_guest_get_time(Error **errp) { SYSTEMTIME ts = {0}; @@ -1657,8 +1663,7 @@ int64_t qmp_guest_get_time(Error **errp) return -1; } - return ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime) - - W32_FT_OFFSET) * 100; + return filetime_to_ns(&tf); } void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) @@ -2363,7 +2368,6 @@ GuestDeviceInfoList *qmp_guest_get_devices(Error **errp) slog("enumerating devices"); for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { bool skip = true; - SYSTEMTIME utc_date; g_autofree LPWSTR name = NULL; g_autofree LPFILETIME date = NULL; g_autofree LPWSTR version = NULL; @@ -2434,13 +2438,12 @@ GuestDeviceInfoList *qmp_guest_get_devices(Error **errp) slog("failed to get driver date"); continue; } - FileTimeToSystemTime(date, &utc_date); - device->driver_date = g_strdup_printf("%04d-%02d-%02d", - utc_date.wYear, utc_date.wMonth, utc_date.wDay); + device->driver_date = filetime_to_ns(date); device->has_driver_date = true; - slog("driver: %s\ndriver version: %s,%s\n", device->driver_name, - device->driver_date, device->driver_version); + slog("driver: %s\ndriver version: %" PRId64 ",%s\n", + device->driver_name, device->driver_date, + device->driver_version); item = g_new0(GuestDeviceInfoList, 1); item->value = g_steal_pointer(&device); if (!cur_item) {