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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+#include "system.h"
+
+#include "filetime.hxx"
+#include "time.hxx"
+
+#include <osl/diagnose.h>
+#include <osl/time.h>
+#include <sys/timeb.h>
+
+sal_Bool SAL_CALL osl_getSystemTime(TimeValue* pTimeVal)
+{
+ unsigned __int64 CurTime;
+
+ typedef VOID (WINAPI *GetSystemTimePreciseAsFileTime_PROC)(LPFILETIME);
+
+ OSL_ASSERT(pTimeVal != nullptr);
+
+ static GetSystemTimePreciseAsFileTime_PROC pGetSystemTimePreciseAsFileTime = [&]()
+ {
+ HMODULE hModule = GetModuleHandleW( L"Kernel32.dll" );
+ return reinterpret_cast<GetSystemTimePreciseAsFileTime_PROC>(
+ GetProcAddress(hModule, "GetSystemTimePreciseAsFileTime"));
+ }();
+
+ // use ~1 microsecond resolution if available
+ if (pGetSystemTimePreciseAsFileTime)
+ pGetSystemTimePreciseAsFileTime(reinterpret_cast<LPFILETIME>(&CurTime));
+ else
+ {
+ SYSTEMTIME SystemTime;
+ GetSystemTime(&SystemTime);
+ SystemTimeToFileTime(&SystemTime, reinterpret_cast<LPFILETIME>(&CurTime));
+ }
+
+ static const unsigned __int64 OffTime = [] {
+ SYSTEMTIME SystemTime;
+ SystemTime.wYear = 1970;
+ SystemTime.wMonth = 1;
+ SystemTime.wDayOfWeek = 0;
+ SystemTime.wDay = 1;
+ SystemTime.wHour = 0;
+ SystemTime.wMinute = 0;
+ SystemTime.wSecond = 0;
+ SystemTime.wMilliseconds = 0;
+
+ unsigned __int64 ft;
+ SystemTimeToFileTime(&SystemTime, reinterpret_cast<LPFILETIME>(&ft));
+ return ft;
+ }();
+
+ const unsigned __int64 Value = CurTime - OffTime;
+
+ pTimeVal->Seconds = static_cast<unsigned long>(Value / 10000000L);
+ pTimeVal->Nanosec = static_cast<unsigned long>((Value % 10000000L) * 100);
+
+ return true;
+}
+
+sal_Bool SAL_CALL osl_getDateTimeFromTimeValue( const TimeValue* pTimeVal, oslDateTime* pDateTime )
+{
+ FILETIME aFileTime;
+ SYSTEMTIME aSystemTime;
+
+ if ( TimeValueToFileTime(pTimeVal, &aFileTime) )
+ {
+ if ( FileTimeToSystemTime( &aFileTime, &aSystemTime ) )
+ {
+ pDateTime->NanoSeconds = pTimeVal->Nanosec;
+
+ pDateTime->Seconds = aSystemTime.wSecond;
+ pDateTime->Minutes = aSystemTime.wMinute;
+ pDateTime->Hours = aSystemTime.wHour;
+ pDateTime->Day = aSystemTime.wDay;
+ pDateTime->DayOfWeek = aSystemTime.wDayOfWeek;
+ pDateTime->Month = aSystemTime.wMonth;
+ pDateTime->Year = aSystemTime.wYear;
+
+ return true;
+ }
+ }
+
+ return false;
+}
+
+sal_Bool SAL_CALL osl_getTimeValueFromDateTime( const oslDateTime* pDateTime, TimeValue* pTimeVal )
+{
+ FILETIME aFileTime;
+ SYSTEMTIME aSystemTime;
+
+ aSystemTime.wMilliseconds = 0;
+ aSystemTime.wSecond = pDateTime->Seconds;
+ aSystemTime.wMinute = pDateTime->Minutes;
+ aSystemTime.wHour = pDateTime->Hours;
+ aSystemTime.wDay = pDateTime->Day;
+ aSystemTime.wDayOfWeek = pDateTime->DayOfWeek;
+ aSystemTime.wMonth = pDateTime->Month;
+ aSystemTime.wYear = pDateTime->Year;
+
+ if ( SystemTimeToFileTime( &aSystemTime, &aFileTime ) )
+ {
+ if (FileTimeToTimeValue( &aFileTime, pTimeVal ) )
+ {
+ pTimeVal->Nanosec = pDateTime->NanoSeconds;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+sal_Bool SAL_CALL osl_getLocalTimeFromSystemTime( const TimeValue* pSystemTimeVal, TimeValue* pLocalTimeVal )
+{
+ TIME_ZONE_INFORMATION aTimeZoneInformation;
+ DWORD Success;
+ sal_Int64 bias;
+
+ // get timezone information
+ if ( ( Success=GetTimeZoneInformation( &aTimeZoneInformation ) ) != TIME_ZONE_ID_INVALID)
+ {
+ bias=aTimeZoneInformation.Bias;
+
+ // add bias for daylight saving time
+ if ( Success== TIME_ZONE_ID_DAYLIGHT )
+ bias+=aTimeZoneInformation.DaylightBias;
+
+ if ( static_cast<sal_Int64>(pSystemTimeVal->Seconds) > ( bias * 60 ) )
+ {
+ pLocalTimeVal->Seconds = static_cast<sal_uInt32>(pSystemTimeVal->Seconds - ( bias * 60) );
+ pLocalTimeVal->Nanosec = pSystemTimeVal->Nanosec;
+
+ return true;
+ }
+ }
+
+ return false;
+}
+
+sal_Bool SAL_CALL osl_getSystemTimeFromLocalTime( const TimeValue* pLocalTimeVal, TimeValue* pSystemTimeVal )
+{
+ TIME_ZONE_INFORMATION aTimeZoneInformation;
+ DWORD Success;
+ sal_Int64 bias;
+
+ // get timezone information
+ if ( ( Success=GetTimeZoneInformation( &aTimeZoneInformation ) ) != TIME_ZONE_ID_INVALID)
+ {
+ bias=aTimeZoneInformation.Bias;
+
+ // add bias for daylight saving time
+ if ( Success== TIME_ZONE_ID_DAYLIGHT )
+ bias+=aTimeZoneInformation.DaylightBias;
+
+ if ( static_cast<sal_Int64>(pLocalTimeVal->Seconds) + ( bias * 60 ) > 0 )
+ {
+ pSystemTimeVal->Seconds = static_cast<sal_uInt32>( pLocalTimeVal->Seconds + ( bias * 60) );
+ pSystemTimeVal->Nanosec = pLocalTimeVal->Nanosec;
+
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static struct _timeb startTime;
+void sal_initGlobalTimer()
+{
+ _ftime( &startTime );
+}
+
+sal_uInt32 SAL_CALL osl_getGlobalTimer(void)
+{
+ struct _timeb currentTime;
+ sal_uInt32 nSeconds;
+
+ _ftime( &currentTime );
+
+ nSeconds = static_cast<sal_uInt32>( currentTime.time - startTime.time );
+
+ return ( nSeconds * 1000 ) + static_cast<long>( currentTime.millitm - startTime.millitm );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */