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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;
// get timezone information
DWORD Success = GetTimeZoneInformation( &aTimeZoneInformation );
if (Success == TIME_ZONE_ID_INVALID)
return false;
sal_Int64 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;
// get timezone information
DWORD Success = GetTimeZoneInformation( &aTimeZoneInformation );
if ( Success == TIME_ZONE_ID_INVALID )
return false;
sal_Int64 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( ¤tTime );
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: */
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