[PATCH] Fix Windows local time

From: Jeff Furlong <jeff.furlong@wdc.com>
To: "fio@vger.kernel.org" <fio@vger.kernel.org>
Subject: [PATCH] Fix Windows local time
Date: Thu, 14 Dec 2017 01:19:09 +0000	[thread overview]
Message-ID: <BN3PR0401MB145737D9588B5617B1017ED48F0A0@BN3PR0401MB1457.namprd04.prod.outlook.com> (raw)

The fio summary output shows when the job completed, but references system time on Windows.  On Linux, local time (such as with time zone specifics) is referenced.  This patch converts Windows system time to local time.

Before:
fio-3.2-72-ge80d-dirty
Starting 1 thread
Jobs: 1 (f=0): [f(1)][100.0%][r=69.6MiB/s,w=0KiB/s][r=17.8k,w=0 IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=1360: Wed Dec 13 23:21:16 2017 <--System Time

After:
fio-3.2-72-ge80d-dirty
Starting 1 thread
Jobs: 1 (f=0): [f(1)][100.0%][r=73.2MiB/s,w=0KiB/s][r=18.7k,w=0 IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=8088: Wed Dec 13 15:22:07 2017 <--Local Time

Regards,
Jeff

diff --git a/os/windows/posix.c b/os/windows/posix.c
index 00f03355..17e18a1f 100755
--- a/os/windows/posix.c
+++ b/os/windows/posix.c
@@ -228,12 +228,14 @@ void Time_tToSystemTime(time_t dosTime, SYSTEMTIME *systemTime)
 {
     FILETIME utcFT;
     LONGLONG jan1970;
+	SYSTEMTIME tempSystemTime;
 
     jan1970 = Int32x32To64(dosTime, 10000000) + 116444736000000000;
     utcFT.dwLowDateTime = (DWORD)jan1970;
     utcFT.dwHighDateTime = jan1970 >> 32;
 
-    FileTimeToSystemTime((FILETIME*)&utcFT, systemTime);
+    FileTimeToSystemTime((FILETIME*)&utcFT, &tempSystemTime);
+	SystemTimeToTzSpecificLocalTime(NULL, &tempSystemTime, systemTime);
 }
 
 char* ctime_r(const time_t *t, char *buf)

