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Diffstat (limited to 'sal/osl/w32/time.cxx')
| -rw-r--r-- | sal/osl/w32/time.cxx | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/sal/osl/w32/time.cxx b/sal/osl/w32/time.cxx new file mode 100644 index 000000000..3f11746fe --- /dev/null +++ b/sal/osl/w32/time.cxx @@ -0,0 +1,200 @@ +/* -*- 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: */ |