blob: e86d41a11eda546f504502c051f62e3d5aa65f98 [file] [log] [blame]
#include "rar.hpp"
void RarTime::GetLocal(RarLocalTime *lt)
{
#ifdef _WIN_ALL
FILETIME ft;
GetWinFT(&ft);
FILETIME lft;
if (WinNT() < WNT_VISTA)
{
// SystemTimeToTzSpecificLocalTime based code produces 1 hour error on XP.
FileTimeToLocalFileTime(&ft,&lft);
}
else
{
// We use these functions instead of FileTimeToLocalFileTime according to
// MSDN recommendation: "To account for daylight saving time
// when converting a file time to a local time ..."
SYSTEMTIME st1,st2;
FileTimeToSystemTime(&ft,&st1);
SystemTimeToTzSpecificLocalTime(NULL,&st1,&st2);
SystemTimeToFileTime(&st2,&lft);
// Correct precision loss (low 4 decimal digits) in FileTimeToSystemTime.
FILETIME rft;
SystemTimeToFileTime(&st1,&rft);
uint64 Corrected=INT32TO64(ft.dwHighDateTime,ft.dwLowDateTime)-
INT32TO64(rft.dwHighDateTime,rft.dwLowDateTime)+
INT32TO64(lft.dwHighDateTime,lft.dwLowDateTime);
lft.dwLowDateTime=(DWORD)Corrected;
lft.dwHighDateTime=(DWORD)(Corrected>>32);
}
SYSTEMTIME st;
FileTimeToSystemTime(&lft,&st);
lt->Year=st.wYear;
lt->Month=st.wMonth;
lt->Day=st.wDay;
lt->Hour=st.wHour;
lt->Minute=st.wMinute;
lt->Second=st.wSecond;
lt->wDay=st.wDayOfWeek;
lt->yDay=lt->Day-1;
static int mdays[12]={31,28,31,30,31,30,31,31,30,31,30,31};
for (uint I=1;I<lt->Month && I<=ASIZE(mdays);I++)
lt->yDay+=mdays[I-1];
if (lt->Month>2 && IsLeapYear(lt->Year))
lt->yDay++;
#else
time_t ut=GetUnix();
struct tm *t;
t=localtime(&ut);
lt->Year=t->tm_year+1900;
lt->Month=t->tm_mon+1;
lt->Day=t->tm_mday;
lt->Hour=t->tm_hour;
lt->Minute=t->tm_min;
lt->Second=t->tm_sec;
lt->wDay=t->tm_wday;
lt->yDay=t->tm_yday;
#endif
lt->Reminder=(itime % TICKS_PER_SECOND);
}
void RarTime::SetLocal(RarLocalTime *lt)
{
#ifdef _WIN_ALL
SYSTEMTIME st;
st.wYear=lt->Year;
st.wMonth=lt->Month;
st.wDay=lt->Day;
st.wHour=lt->Hour;
st.wMinute=lt->Minute;
st.wSecond=lt->Second;
st.wMilliseconds=0;
st.wDayOfWeek=0;
FILETIME lft;
if (SystemTimeToFileTime(&st,&lft))
{
FILETIME ft;
if (WinNT() < WNT_VISTA)
{
// TzSpecificLocalTimeToSystemTime based code produces 1 hour error on XP.
LocalFileTimeToFileTime(&lft,&ft);
}
else
{
// Reverse procedure which we do in GetLocal.
SYSTEMTIME st1,st2;
FileTimeToSystemTime(&lft,&st2); // st2 might be unequal to st, because we added lt->Reminder to lft.
TzSpecificLocalTimeToSystemTime(NULL,&st2,&st1);
SystemTimeToFileTime(&st1,&ft);
// Correct precision loss (low 4 decimal digits) in FileTimeToSystemTime.
FILETIME rft;
SystemTimeToFileTime(&st2,&rft);
uint64 Corrected=INT32TO64(lft.dwHighDateTime,lft.dwLowDateTime)-
INT32TO64(rft.dwHighDateTime,rft.dwLowDateTime)+
INT32TO64(ft.dwHighDateTime,ft.dwLowDateTime);
ft.dwLowDateTime=(DWORD)Corrected;
ft.dwHighDateTime=(DWORD)(Corrected>>32);
}
SetWinFT(&ft);
}
else
Reset();
#else
struct tm t;
t.tm_sec=lt->Second;
t.tm_min=lt->Minute;
t.tm_hour=lt->Hour;
t.tm_mday=lt->Day;
t.tm_mon=lt->Month-1;
t.tm_year=lt->Year-1900;
t.tm_isdst=-1;
SetUnix(mktime(&t));
#endif
itime+=lt->Reminder;
}
#ifdef _WIN_ALL
void RarTime::GetWinFT(FILETIME *ft)
{
_ULARGE_INTEGER ul;
ul.QuadPart=GetWin();
ft->dwLowDateTime=ul.LowPart;
ft->dwHighDateTime=ul.HighPart;
}
void RarTime::SetWinFT(FILETIME *ft)
{
_ULARGE_INTEGER ul = {ft->dwLowDateTime, ft->dwHighDateTime};
SetWin(ul.QuadPart);
}
#endif
// Get 64-bit representation of Windows FILETIME (100ns since 01.01.1601).
uint64 RarTime::GetWin()
{
return itime/(TICKS_PER_SECOND/10000000);
}
// Set 64-bit representation of Windows FILETIME (100ns since 01.01.1601).
void RarTime::SetWin(uint64 WinTime)
{
itime=WinTime*(TICKS_PER_SECOND/10000000);
}
time_t RarTime::GetUnix()
{
return time_t(GetUnixNS()/1000000000);
}
void RarTime::SetUnix(time_t ut)
{
if (sizeof(ut)>4)
SetUnixNS(uint64(ut)*1000000000);
else
{
// Convert 32-bit and possibly signed time_t to uint32 first,
// uint64 cast is not enough. Otherwise sign can expand to 64 bits.
SetUnixNS(uint64(uint32(ut))*1000000000);
}
}
// Get the high precision Unix time in nanoseconds since 01-01-1970.
uint64 RarTime::GetUnixNS()
{
// 11644473600000000000 - number of ns between 01-01-1601 and 01-01-1970.
uint64 ushift=INT32TO64(0xA1997B0B,0x4C6A0000);
return itime*(1000000000/TICKS_PER_SECOND)-ushift;
}
// Set the high precision Unix time in nanoseconds since 01-01-1970.
void RarTime::SetUnixNS(uint64 ns)
{
// 11644473600000000000 - number of ns between 01-01-1601 and 01-01-1970.
uint64 ushift=INT32TO64(0xA1997B0B,0x4C6A0000);
itime=(ns+ushift)/(1000000000/TICKS_PER_SECOND);
}
uint RarTime::GetDos()
{
RarLocalTime lt;
GetLocal(&lt);
uint DosTime=(lt.Second/2)|(lt.Minute<<5)|(lt.Hour<<11)|
(lt.Day<<16)|(lt.Month<<21)|((lt.Year-1980)<<25);
return DosTime;
}
void RarTime::SetDos(uint DosTime)
{
RarLocalTime lt;
lt.Second=(DosTime & 0x1f)*2;
lt.Minute=(DosTime>>5) & 0x3f;
lt.Hour=(DosTime>>11) & 0x1f;
lt.Day=(DosTime>>16) & 0x1f;
lt.Month=(DosTime>>21) & 0x0f;
lt.Year=(DosTime>>25)+1980;
lt.Reminder=0;
SetLocal(&lt);
}
void RarTime::GetText(wchar *DateStr,size_t MaxSize,bool FullMS)
{
if (IsSet())
{
RarLocalTime lt;
GetLocal(&lt);
if (FullMS)
swprintf(DateStr,MaxSize,L"%u-%02u-%02u %02u:%02u:%02u,%09u",lt.Year,lt.Month,lt.Day,lt.Hour,lt.Minute,lt.Second,lt.Reminder*(1000000000/TICKS_PER_SECOND));
else
swprintf(DateStr,MaxSize,L"%u-%02u-%02u %02u:%02u",lt.Year,lt.Month,lt.Day,lt.Hour,lt.Minute);
}
else
{
// We use escape before '?' to avoid weird C trigraph characters.
wcsncpyz(DateStr,L"\?\?\?\?-\?\?-\?\? \?\?:\?\?",MaxSize);
}
}
#ifndef SFX_MODULE
void RarTime::SetIsoText(const wchar *TimeText)
{
int Field[6];
memset(Field,0,sizeof(Field));
for (uint DigitCount=0;*TimeText!=0;TimeText++)
if (IsDigit(*TimeText))
{
int FieldPos=DigitCount<4 ? 0:(DigitCount-4)/2+1;
if (FieldPos<ASIZE(Field))
Field[FieldPos]=Field[FieldPos]*10+*TimeText-'0';
DigitCount++;
}
RarLocalTime lt;
lt.Second=Field[5];
lt.Minute=Field[4];
lt.Hour=Field[3];
lt.Day=Field[2]==0 ? 1:Field[2];
lt.Month=Field[1]==0 ? 1:Field[1];
lt.Year=Field[0];
lt.Reminder=0;
SetLocal(&lt);
}
#endif
#ifndef SFX_MODULE
void RarTime::SetAgeText(const wchar *TimeText)
{
uint Seconds=0,Value=0;
for (uint I=0;TimeText[I]!=0;I++)
{
int Ch=TimeText[I];
if (IsDigit(Ch))
Value=Value*10+Ch-'0';
else
{
switch(etoupper(Ch))
{
case 'D':
Seconds+=Value*24*3600;
break;
case 'H':
Seconds+=Value*3600;
break;
case 'M':
Seconds+=Value*60;
break;
case 'S':
Seconds+=Value;
break;
}
Value=0;
}
}
SetCurrentTime();
itime-=uint64(Seconds)*TICKS_PER_SECOND;
}
#endif
void RarTime::SetCurrentTime()
{
#ifdef _WIN_ALL
FILETIME ft;
SYSTEMTIME st;
GetSystemTime(&st);
SystemTimeToFileTime(&st,&ft);
SetWinFT(&ft);
#else
time_t st;
time(&st);
SetUnix(st);
#endif
}
// Add the specified signed number of nanoseconds.
void RarTime::Adjust(int64 ns)
{
ns/=1000000000/TICKS_PER_SECOND; // Convert ns to internal ticks.
itime+=(uint64)ns;
}
#ifndef SFX_MODULE
const wchar *GetMonthName(int Month)
{
return uiGetMonthName(Month);
}
#endif
bool IsLeapYear(int Year)
{
return (Year&3)==0 && (Year%100!=0 || Year%400==0);
}