wine/win32/time.c
Rein Klazes 874b8a3e19 Corrected a problem in GetTimeZoneInformation() due a change to
mktime() in glibc-2.1.1 when daylight saving time is in effect.
1999-06-12 06:39:22 +00:00

163 lines
4.1 KiB
C

/*
* Win32 kernel functions
*
* Copyright 1995 Martin von Loewis and Cameron Heide
*/
#include <string.h>
#include <time.h>
#include <sys/time.h>
#include <unistd.h>
#include "file.h"
#include "winerror.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(win32)
/***********************************************************************
* GetLocalTime (KERNEL32.228)
*/
VOID WINAPI GetLocalTime(LPSYSTEMTIME systime)
{
time_t local_time;
struct tm *local_tm;
struct timeval tv;
gettimeofday(&tv, NULL);
local_time = tv.tv_sec;
local_tm = localtime(&local_time);
systime->wYear = local_tm->tm_year + 1900;
systime->wMonth = local_tm->tm_mon + 1;
systime->wDayOfWeek = local_tm->tm_wday;
systime->wDay = local_tm->tm_mday;
systime->wHour = local_tm->tm_hour;
systime->wMinute = local_tm->tm_min;
systime->wSecond = local_tm->tm_sec;
systime->wMilliseconds = (tv.tv_usec / 1000) % 1000;
}
/***********************************************************************
* GetSystemTime (KERNEL32.285)
*/
VOID WINAPI GetSystemTime(LPSYSTEMTIME systime)
{
time_t local_time;
struct tm *local_tm;
struct timeval tv;
gettimeofday(&tv, NULL);
local_time = tv.tv_sec;
local_tm = gmtime(&local_time);
systime->wYear = local_tm->tm_year + 1900;
systime->wMonth = local_tm->tm_mon + 1;
systime->wDayOfWeek = local_tm->tm_wday;
systime->wDay = local_tm->tm_mday;
systime->wHour = local_tm->tm_hour;
systime->wMinute = local_tm->tm_min;
systime->wSecond = local_tm->tm_sec;
systime->wMilliseconds = (tv.tv_usec / 1000) % 1000;
}
/***********************************************************************
* SetSystemTime (KERNEL32.507)
*/
BOOL WINAPI SetSystemTime(const SYSTEMTIME *systime)
{
struct timeval tv;
struct timezone tz;
struct tm t;
time_t sec;
/* call gettimeofday to get the current timezone */
gettimeofday(&tv, &tz);
/* get the number of seconds */
t.tm_sec = systime->wSecond;
t.tm_min = systime->wMinute;
t.tm_hour = systime->wHour;
t.tm_mday = systime->wDay;
t.tm_mon = systime->wMonth;
t.tm_year = systime->wYear;
sec = mktime (&t);
/* set the new time */
tv.tv_sec = sec;
tv.tv_usec = systime->wMilliseconds * 1000;
if (settimeofday(&tv, &tz))
{
return FALSE;
}
else
{
return TRUE;
}
}
/***********************************************************************
* GetTimeZoneInformation (KERNEL32.302)
*/
DWORD WINAPI GetTimeZoneInformation(LPTIME_ZONE_INFORMATION tzinfo)
{
time_t gmt, lt;
struct tm *ptm;
int daylight;
memset(tzinfo, 0, sizeof(TIME_ZONE_INFORMATION));
gmt = time(NULL);
ptm=localtime(&gmt);
daylight=ptm->tm_isdst;
ptm = gmtime(&gmt);
ptm->tm_isdst=daylight;
lt = mktime(ptm);
tzinfo->Bias = (lt - gmt) / 60;
tzinfo->StandardBias = 0;
tzinfo->DaylightBias = -60;
return TIME_ZONE_ID_UNKNOWN;
}
/***********************************************************************
* SetTimeZoneInformation (KERNEL32.515)
*/
BOOL WINAPI SetTimeZoneInformation(const LPTIME_ZONE_INFORMATION tzinfo)
{
struct timezone tz;
tz.tz_minuteswest = tzinfo->Bias;
#ifdef DST_NONE
tz.tz_dsttime = DST_NONE;
#else
tz.tz_dsttime = 0;
#endif
return !settimeofday(NULL, &tz);
}
/***********************************************************************
* GetSystemTimeAsFileTime (KERNEL32)
*/
VOID WINAPI GetSystemTimeAsFileTime(LPFILETIME systemtimeAsfiletime) {
DOSFS_UnixTimeToFileTime(time(NULL),systemtimeAsfiletime,0);
}
/***********************************************************************
* SystemTimeToTzSpecificLocalTime32 (KERNEL32.683)
*/
BOOL WINAPI SystemTimeToTzSpecificLocalTime(
LPTIME_ZONE_INFORMATION lpTimeZoneInformation,
LPSYSTEMTIME lpUniversalTime,
LPSYSTEMTIME lpLocalTime) {
FIXME(":stub\n");
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return FALSE;
}