55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
|
#include "il2cpp-config.h"
|
||
|
|
|
||
|
|
#if IL2CPP_TARGET_WINDOWS
|
||
|
|
|
||
|
|
#include "os/TimeZone.h"
|
||
|
|
#include "os/Win32/WindowsHeaders.h"
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Magic number to convert FILETIME base Jan 1, 1601 to DateTime - base Jan, 1, 0001
|
||
|
|
*/
|
||
|
|
const uint64_t FILETIME_ADJUST = ((uint64_t)504911232000000000LL);
|
||
|
|
|
||
|
|
namespace il2cpp
|
||
|
|
{
|
||
|
|
namespace os
|
||
|
|
{
|
||
|
|
static void
|
||
|
|
convert_to_absolute_date(SYSTEMTIME *date)
|
||
|
|
{
|
||
|
|
#define IS_LEAP(y) ((y % 4) == 0 && ((y % 100) != 0 || (y % 400) == 0))
|
||
|
|
static int days_in_month[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
|
||
|
|
static int leap_days_in_month[] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
|
||
|
|
/* from the calendar FAQ */
|
||
|
|
int a = (14 - date->wMonth) / 12;
|
||
|
|
int y = date->wYear - a;
|
||
|
|
int m = date->wMonth + 12 * a - 2;
|
||
|
|
int d = (1 + y + y / 4 - y / 100 + y / 400 + (31 * m) / 12) % 7;
|
||
|
|
|
||
|
|
/* d is now the day of the week for the first of the month (0 == Sunday) */
|
||
|
|
|
||
|
|
int day_of_week = date->wDayOfWeek;
|
||
|
|
|
||
|
|
/* set day_in_month to the first day in the month which falls on day_of_week */
|
||
|
|
int day_in_month = 1 + (day_of_week - d);
|
||
|
|
if (day_in_month <= 0)
|
||
|
|
day_in_month += 7;
|
||
|
|
|
||
|
|
/* wDay is 1 for first weekday in month, 2 for 2nd ... 5 means last - so work that out allowing for days in the month */
|
||
|
|
date->wDay = day_in_month + (date->wDay - 1) * 7;
|
||
|
|
if (date->wDay > (IS_LEAP(date->wYear) ? leap_days_in_month[date->wMonth - 1] : days_in_month[date->wMonth - 1]))
|
||
|
|
date->wDay -= 7;
|
||
|
|
}
|
||
|
|
|
||
|
|
// names[0] - standardName
|
||
|
|
// names[1] - daylightName
|
||
|
|
bool TimeZone::GetTimeZoneData(int32_t year, int64_t data[4], std::string names[2], bool* daylight_inverted)
|
||
|
|
{
|
||
|
|
//On Windows, we should always load timezones in managed
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|