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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "utils/XTimeUtils.h"
#include "PosixTimezone.h"
#include <errno.h>
#include <mutex>
#include <time.h>
#include <sys/times.h>
#if defined(TARGET_ANDROID) && !defined(__LP64__)
#include <time64.h>
#endif
#define WIN32_TIME_OFFSET ((unsigned long long)(369 * 365 + 89) * 24 * 3600 * 10000000)
namespace KODI
{
namespace TIME
{
/*
* A Leap year is any year that is divisible by four, but not by 100 unless also
* divisible by 400
*/
#define IsLeapYear(y) ((!(y % 4)) ? (((!(y % 400)) && (y % 100)) ? 1 : 0) : 0)
uint32_t GetTimeZoneInformation(TimeZoneInformation* timeZoneInformation)
{
if (!timeZoneInformation)
return KODI_TIME_ZONE_ID_INVALID;
struct tm t;
time_t tt = time(NULL);
if (localtime_r(&tt, &t))
timeZoneInformation->bias = -t.tm_gmtoff / 60;
timeZoneInformation->standardName = tzname[0];
timeZoneInformation->daylightName = tzname[1];
return KODI_TIME_ZONE_ID_UNKNOWN;
}
void GetLocalTime(SystemTime* systemTime)
{
const time_t t = time(NULL);
struct tm now;
localtime_r(&t, &now);
systemTime->year = now.tm_year + 1900;
systemTime->month = now.tm_mon + 1;
systemTime->dayOfWeek = now.tm_wday;
systemTime->day = now.tm_mday;
systemTime->hour = now.tm_hour;
systemTime->minute = now.tm_min;
systemTime->second = now.tm_sec;
systemTime->milliseconds = 0;
// NOTE: localtime_r() is not required to set this, but we Assume that it's set here.
g_timezone.m_IsDST = now.tm_isdst;
}
int FileTimeToLocalFileTime(const FileTime* fileTime, FileTime* localFileTime)
{
ULARGE_INTEGER l;
l.u.LowPart = fileTime->lowDateTime;
l.u.HighPart = fileTime->highDateTime;
time_t ft;
struct tm tm_ft;
FileTimeToTimeT(fileTime, &ft);
localtime_r(&ft, &tm_ft);
l.QuadPart += static_cast<unsigned long long>(tm_ft.tm_gmtoff) * 10000000;
localFileTime->lowDateTime = l.u.LowPart;
localFileTime->highDateTime = l.u.HighPart;
return 1;
}
int SystemTimeToFileTime(const SystemTime* systemTime, FileTime* fileTime)
{
static const int dayoffset[12] = {0, 31, 59, 90, 120, 151, 182, 212, 243, 273, 304, 334};
#if defined(TARGET_DARWIN)
static std::mutex timegm_lock;
#endif
struct tm sysTime = {};
sysTime.tm_year = systemTime->year - 1900;
sysTime.tm_mon = systemTime->month - 1;
sysTime.tm_wday = systemTime->dayOfWeek;
sysTime.tm_mday = systemTime->day;
sysTime.tm_hour = systemTime->hour;
sysTime.tm_min = systemTime->minute;
sysTime.tm_sec = systemTime->second;
sysTime.tm_yday = dayoffset[sysTime.tm_mon] + (sysTime.tm_mday - 1);
sysTime.tm_isdst = g_timezone.m_IsDST;
// If this is a leap year, and we're past the 28th of Feb, increment tm_yday.
if (IsLeapYear(systemTime->year) && (sysTime.tm_yday > 58))
sysTime.tm_yday++;
#if defined(TARGET_DARWIN)
std::lock_guard<std::mutex> lock(timegm_lock);
#endif
#if defined(TARGET_ANDROID) && !defined(__LP64__)
time64_t t = timegm64(&sysTime);
#else
time_t t = timegm(&sysTime);
#endif
LARGE_INTEGER result;
result.QuadPart = (long long)t * 10000000 + (long long)systemTime->milliseconds * 10000;
result.QuadPart += WIN32_TIME_OFFSET;
fileTime->lowDateTime = result.u.LowPart;
fileTime->highDateTime = result.u.HighPart;
return 1;
}
long CompareFileTime(const FileTime* fileTime1, const FileTime* fileTime2)
{
ULARGE_INTEGER t1;
t1.u.LowPart = fileTime1->lowDateTime;
t1.u.HighPart = fileTime1->highDateTime;
ULARGE_INTEGER t2;
t2.u.LowPart = fileTime2->lowDateTime;
t2.u.HighPart = fileTime2->highDateTime;
if (t1.QuadPart == t2.QuadPart)
return 0;
else if (t1.QuadPart < t2.QuadPart)
return -1;
else
return 1;
}
int FileTimeToSystemTime(const FileTime* fileTime, SystemTime* systemTime)
{
LARGE_INTEGER file;
file.u.LowPart = fileTime->lowDateTime;
file.u.HighPart = fileTime->highDateTime;
file.QuadPart -= WIN32_TIME_OFFSET;
file.QuadPart /= 10000; /* to milliseconds */
systemTime->milliseconds = file.QuadPart % 1000;
file.QuadPart /= 1000; /* to seconds */
time_t ft = file.QuadPart;
struct tm tm_ft;
gmtime_r(&ft, &tm_ft);
systemTime->year = tm_ft.tm_year + 1900;
systemTime->month = tm_ft.tm_mon + 1;
systemTime->dayOfWeek = tm_ft.tm_wday;
systemTime->day = tm_ft.tm_mday;
systemTime->hour = tm_ft.tm_hour;
systemTime->minute = tm_ft.tm_min;
systemTime->second = tm_ft.tm_sec;
return 1;
}
int LocalFileTimeToFileTime(const FileTime* localFileTime, FileTime* fileTime)
{
ULARGE_INTEGER l;
l.u.LowPart = localFileTime->lowDateTime;
l.u.HighPart = localFileTime->highDateTime;
l.QuadPart += (unsigned long long) timezone * 10000000;
fileTime->lowDateTime = l.u.LowPart;
fileTime->highDateTime = l.u.HighPart;
return 1;
}
int FileTimeToTimeT(const FileTime* localFileTime, time_t* pTimeT)
{
if (!localFileTime || !pTimeT)
return false;
ULARGE_INTEGER fileTime;
fileTime.u.LowPart = localFileTime->lowDateTime;
fileTime.u.HighPart = localFileTime->highDateTime;
fileTime.QuadPart -= WIN32_TIME_OFFSET;
fileTime.QuadPart /= 10000; /* to milliseconds */
fileTime.QuadPart /= 1000; /* to seconds */
time_t ft = fileTime.QuadPart;
struct tm tm_ft;
localtime_r(&ft, &tm_ft);
*pTimeT = mktime(&tm_ft);
return 1;
}
int TimeTToFileTime(time_t timeT, FileTime* localFileTime)
{
if (!localFileTime)
return false;
ULARGE_INTEGER result;
result.QuadPart = (unsigned long long) timeT * 10000000;
result.QuadPart += WIN32_TIME_OFFSET;
localFileTime->lowDateTime = result.u.LowPart;
localFileTime->highDateTime = result.u.HighPart;
return 1;
}
} // namespace TIME
} // namespace KODI
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