From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:34198) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UG2Gu-0003Lr-D2 for qemu-devel@nongnu.org; Thu, 14 Mar 2013 03:08:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UG2Gt-0005cQ-9y for qemu-devel@nongnu.org; Thu, 14 Mar 2013 03:08:16 -0400 Received: from e28smtp05.in.ibm.com ([122.248.162.5]:40710) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UG2Gs-0005c3-KG for qemu-devel@nongnu.org; Thu, 14 Mar 2013 03:08:15 -0400 Received: from /spool/local by e28smtp05.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 14 Mar 2013 12:35:40 +0530 Received: from d28relay01.in.ibm.com (d28relay01.in.ibm.com [9.184.220.58]) by d28dlp01.in.ibm.com (Postfix) with ESMTP id 9D744E0050 for ; Thu, 14 Mar 2013 12:39:30 +0530 (IST) Received: from d28av03.in.ibm.com (d28av03.in.ibm.com [9.184.220.65]) by d28relay01.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r2E783nw15401082 for ; Thu, 14 Mar 2013 12:38:04 +0530 Received: from d28av03.in.ibm.com (loopback [127.0.0.1]) by d28av03.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r2E787qK029038 for ; Thu, 14 Mar 2013 18:08:08 +1100 From: Lei Li Date: Thu, 14 Mar 2013 15:07:50 +0800 Message-Id: <1363244871-11973-2-git-send-email-lilei@linux.vnet.ibm.com> In-Reply-To: <1363244871-11973-1-git-send-email-lilei@linux.vnet.ibm.com> References: <1363244871-11973-1-git-send-email-lilei@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH 1/2] qga: add windows implementation for guest-get-time List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: aliguori@us.ibm.com, mdroth@linux.vnet.ibm.com, Lei Li Signed-off-by: Lei Li --- qga/commands-win32.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 7e8ecb3..e24fb4a 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -22,6 +22,12 @@ #define SHTDN_REASON_FLAG_PLANNED 0x80000000 #endif +/* multiple of 100 nanoseconds elapsed between windows baseline + (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */ +#define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \ + (365 * (1970 - 1601) + \ + (1970 - 1601) / 4 - 3)) + static void acquire_privilege(const char *name, Error **err) { HANDLE token; @@ -108,6 +114,33 @@ void qmp_guest_shutdown(bool has_mode, const char *mode, Error **err) } } +int64_t qmp_guest_get_time(Error **errp) +{ + SYSTEMTIME *ts = g_malloc0(sizeof(SYSTEMTIME)); + int64_t time_ns; + FILETIME tf; + + GetSystemTime(ts); + if (!ts) { + error_setg(errp, "Failed to get time"); + goto out; + } + + if (!SystemTimeToFileTime(ts, &tf)) { + error_setg_errno(errp, errno, "Failed to convert system time"); + goto out; + } + + time_ns = ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime) + - W32_FT_OFFSET) * 100; + + return time_ns; + +out: + g_free(ts); + return -1; +} + int64_t qmp_guest_file_open(const char *path, bool has_mode, const char *mode, Error **err) { error_set(err, QERR_UNSUPPORTED); -- 1.7.11.7