static time_t
LogFileDate(unsigned current_year, const TCHAR *filename)
{
// scan for long filename
unsigned short year, month, day, num;
int matches = _stscanf(filename, _T("%hu-%hu-%hu-%*7s-%hu."),
&year, &month, &day, &num);
if (matches == 4) {
struct tm tm;
tm.tm_sec = 0;
tm.tm_min = 0;
tm.tm_hour = num;
tm.tm_mday = day;
tm.tm_mon = month - 1;
tm.tm_year = year - 1900;
tm.tm_isdst = -1;
return mktime(&tm);
}
TCHAR cyear, cmonth, cday, cflight;
// scan for short filename
matches = _stscanf(filename, _T("%c%c%c%*4s%c."),
&cyear, &cmonth, &cday,&cflight);
if (matches == 4) {
int iyear = (int)current_year;
int syear = iyear % 10;
int yearzero = iyear - syear;
int yearthis = IGCCharToNum(cyear) + yearzero;
if (yearthis > iyear)
yearthis -= 10;
struct tm tm;
tm.tm_sec = 0;
tm.tm_min = 0;
tm.tm_hour = IGCCharToNum(cflight);
tm.tm_mday = IGCCharToNum(cday);
tm.tm_mon = IGCCharToNum(cmonth) - 1;
tm.tm_year = yearthis - 1900;
tm.tm_isdst = -1;
return mktime(&tm);
/*
YMDCXXXF.igc
Y: Year, 0 to 9 cycling every 10 years
M: Month, 1 to 9 then A for 10, B=11, C=12
D: Day, 1 to 9 then A for 10, B=....
C: Manuf. code = X
XXX: Logger ID Alphanum
F: Flight of day, 1 to 9 then A through Z
*/
}
return 0;
}
FILETIME LogFileDate(TCHAR* filename) {
FILETIME ft;
ft.dwLowDateTime = 0;
ft.dwHighDateTime = 0;
TCHAR asset[MAX_PATH+1];
SYSTEMTIME st;
unsigned short year, month, day, num;
int matches;
// scan for long filename
matches = swscanf(filename,
TEXT("%hu-%hu-%hu-%7s-%hu.IGC"),
&year,
&month,
&day,
asset,
&num);
if (matches==5) {
st.wYear = year;
st.wMonth = month;
st.wDay = day;
st.wHour = num;
st.wMinute = 0;
st.wSecond = 0;
st.wMilliseconds = 0;
SystemTimeToFileTime(&st,&ft);
return ft;
}
TCHAR cyear, cmonth, cday, cflight;
// scan for short filename
matches = _stscanf(filename,
TEXT("%c%c%c%4s%c.IGC"),
&cyear,
&cmonth,
&cday,
asset,
&cflight);
if (matches==5) {
int iyear = (int)GPS_INFO.Year;
int syear = iyear % 10;
int yearzero = iyear - syear;
int yearthis = IGCCharToNum(cyear) + yearzero;
if (yearthis > iyear) {
yearthis -= 10;
}
st.wYear = yearthis;
st.wMonth = IGCCharToNum(cmonth);
st.wDay = IGCCharToNum(cday);
st.wHour = IGCCharToNum(cflight);
st.wMinute = 0;
st.wSecond = 0;
st.wMilliseconds = 0;
SystemTimeToFileTime(&st,&ft);
return ft;
/*
YMDCXXXF.IGC
Y: Year, 0 to 9 cycling every 10 years
M: Month, 1 to 9 then A for 10, B=11, C=12
D: Day, 1 to 9 then A for 10, B=....
C: Manuf. code = X
XXX: Logger ID Alphanum
F: Flight of day, 1 to 9 then A through Z
*/
}
return ft;
}
