sal/osl/w32/time.c

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "system.h"
  21
  22 #include <osl/diagnose.h>
  23 #include <osl/time.h>
  24 #include <sys/timeb.h>
  25
  26 extern sal_Bool TimeValueToFileTime(const TimeValue *cpTimeVal, FILETIME *pFTime);
  27
  28 extern BOOL FileTimeToTimeValue( const FILETIME *cpFTime, TimeValue *pTimeVal );
  29
  30 //--------------------------------------------------
  31 // osl_getSystemTime
  32 //--------------------------------------------------
  33
  34 sal_Bool SAL_CALL osl_getSystemTime(TimeValue* pTimeVal)
  35 {
  36     SYSTEMTIME SystemTime;
  37     FILETIME   CurTime, OffTime;
  38     __int64    Value;
  39
  40     OSL_ASSERT(pTimeVal != 0);
  41
  42     GetSystemTime(&SystemTime);
  43     SystemTimeToFileTime(&SystemTime, &CurTime);
  44
  45     SystemTime.wYear         = 1970;
  46     SystemTime.wMonth        = 1;
  47     SystemTime.wDayOfWeek    = 0;
  48     SystemTime.wDay          = 1;
  49     SystemTime.wHour         = 0;
  50     SystemTime.wMinute       = 0;
  51     SystemTime.wSecond       = 0;
  52     SystemTime.wMilliseconds = 0;
  53
  54     SystemTimeToFileTime(&SystemTime, &OffTime);
  55
  56     Value = *((__int64 *)&CurTime) - *((__int64 *)&OffTime);
  57
  58     pTimeVal->Seconds  = (unsigned long) (Value / 10000000L);
  59     pTimeVal->Nanosec  = (unsigned long)((Value % 10000000L) * 100);
  60
  61     return (sal_True);
  62 }
  63
  64 //--------------------------------------------------
  65 // osl_getDateTimeFromTimeValue
  66 //--------------------------------------------------
  67
  68 sal_Bool SAL_CALL osl_getDateTimeFromTimeValue( const TimeValue* pTimeVal, oslDateTime* pDateTime )
  69 {
  70     FILETIME    aFileTime;
  71     SYSTEMTIME  aSystemTime;
  72
  73     if ( TimeValueToFileTime(pTimeVal, &aFileTime) )
  74     {
  75         if ( FileTimeToSystemTime( &aFileTime, &aSystemTime ) )
  76         {
  77             pDateTime->NanoSeconds  =   pTimeVal->Nanosec;
  78
  79             pDateTime->Seconds      =   aSystemTime.wSecond;
  80             pDateTime->Minutes      =   aSystemTime.wMinute;
  81             pDateTime->Hours        =   aSystemTime.wHour;
  82             pDateTime->Day          =   aSystemTime.wDay;
  83             pDateTime->DayOfWeek    =   aSystemTime.wDayOfWeek;
  84             pDateTime->Month        =   aSystemTime.wMonth;
  85             pDateTime->Year         =   aSystemTime.wYear;
  86
  87             return sal_True;
  88         }
  89     }
  90
  91     return sal_False;
  92 }
  93
  94 //--------------------------------------------------
  95 // osl_getTimeValueFromDateTime
  96 //--------------------------------------------------
  97
  98 sal_Bool SAL_CALL osl_getTimeValueFromDateTime( const oslDateTime* pDateTime, TimeValue* pTimeVal )
  99 {
 100     FILETIME    aFileTime;
 101     SYSTEMTIME  aSystemTime;
 102
 103     aSystemTime.wMilliseconds   =   0;
 104     aSystemTime.wSecond         =   pDateTime->Seconds;
 105     aSystemTime.wMinute         =   pDateTime->Minutes;
 106     aSystemTime.wHour           =   pDateTime->Hours;
 107     aSystemTime.wDay            =   pDateTime->Day;
 108     aSystemTime.wDayOfWeek      =   pDateTime->DayOfWeek;
 109     aSystemTime.wMonth          =   pDateTime->Month;
 110     aSystemTime.wYear           =   pDateTime->Year;
 111
 112     if ( SystemTimeToFileTime( &aSystemTime, &aFileTime ) )
 113     {
 114         if (FileTimeToTimeValue( &aFileTime, pTimeVal  ) )
 115         {
 116             pTimeVal->Nanosec = pDateTime->NanoSeconds;
 117             return sal_True;
 118         }
 119     }
 120
 121     return sal_False;
 122 }
 123
 124
 125 //--------------------------------------------------
 126 // osl_getLocalTimeFromSystemTime
 127 //--------------------------------------------------
 128
 129 sal_Bool SAL_CALL osl_getLocalTimeFromSystemTime( const TimeValue* pSystemTimeVal, TimeValue* pLocalTimeVal )
 130 {
 131     TIME_ZONE_INFORMATION aTimeZoneInformation;
 132     DWORD Success;
 133     sal_Int64   bias;
 134
 135     // get timezone information
 136     if ( ( Success=GetTimeZoneInformation( &aTimeZoneInformation ) ) != TIME_ZONE_ID_INVALID)
 137     {
 138         bias=aTimeZoneInformation.Bias;
 139
 140         // add bias for daylight saving time
 141         if ( Success== TIME_ZONE_ID_DAYLIGHT )
 142             bias+=aTimeZoneInformation.DaylightBias;
 143
 144         if ( (sal_Int64) pSystemTimeVal->Seconds > ( bias * 60 ) )
 145         {
 146             pLocalTimeVal->Seconds = (sal_uInt32) (pSystemTimeVal->Seconds - ( bias * 60) );
 147             pLocalTimeVal->Nanosec = pSystemTimeVal->Nanosec;
 148
 149             return sal_True;
 150         }
 151     }
 152
 153     return sal_False;
 154 }
 155
 156 //--------------------------------------------------
 157 // osl_getSystemTimeFromLocalTime
 158 //--------------------------------------------------
 159
 160 sal_Bool SAL_CALL osl_getSystemTimeFromLocalTime( const TimeValue* pLocalTimeVal, TimeValue* pSystemTimeVal )
 161 {
 162     TIME_ZONE_INFORMATION aTimeZoneInformation;
 163     DWORD Success;
 164     sal_Int64   bias;
 165
 166     // get timezone information
 167     if ( ( Success=GetTimeZoneInformation( &aTimeZoneInformation ) ) != TIME_ZONE_ID_INVALID)
 168     {
 169         bias=aTimeZoneInformation.Bias;
 170
 171         // add bias for daylight saving time
 172         if ( Success== TIME_ZONE_ID_DAYLIGHT )
 173             bias+=aTimeZoneInformation.DaylightBias;
 174
 175         if ( (sal_Int64) pLocalTimeVal->Seconds + ( bias * 60 ) > 0 )
 176         {
 177             pSystemTimeVal->Seconds = (sal_uInt32) ( pLocalTimeVal->Seconds + ( bias * 60) );
 178             pSystemTimeVal->Nanosec = pLocalTimeVal->Nanosec;
 179
 180             return sal_True;
 181         }
 182     }
 183
 184     return sal_False;
 185 }
 186
 187 static struct _timeb startTime;
 188 void sal_initGlobalTimer()
 189 {
 190     _ftime( &startTime );
 191 }
 192
 193 sal_uInt32 SAL_CALL osl_getGlobalTimer(void)
 194 {
 195   struct _timeb currentTime;
 196   sal_uInt32 nSeconds;
 197
 198   _ftime( &currentTime );
 199
 200   nSeconds = (sal_uInt32)( currentTime.time - startTime.time );
 201
 202   return ( nSeconds * 1000 ) + (long)( currentTime.millitm - startTime.millitm );
 203 }
 204
 205 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */