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#include "time.h" |
#include "kolibrisys.h" |
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struct tm __buffertime; |
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struct tm * localtime (const time_t * timer) |
/* non-standard! ignore parameter and return just time now */ |
{ |
int kos_date, kos_time; |
kos_date = _ksys_get_date(); |
kos_time = _ksys_get_system_clock(); |
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int bcd_day = (kos_date >> 16); |
int bcd_mon = ((kos_date & 0xFF00) >> 8); |
int bcd_year = (kos_date & 0xFF); |
__buffertime.tm_mday = ((bcd_day & 0xF0)>>4)*10 + (bcd_day & 0x0F); |
__buffertime.tm_mon = ((bcd_mon & 0xF0)>>4)*10 + (bcd_mon & 0x0F) - 1; |
__buffertime.tm_year = ((bcd_year & 0xF0)>>4)*10 + (bcd_year & 0x0F) + 100; |
//printf("%d %d %d\n", __buffertime.tm_mday, __buffertime.tm_mon, __buffertime.tm_year); |
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__buffertime.tm_wday = __buffertime.tm_yday = __buffertime.tm_isdst = -1; /* temporary */ |
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int bcd_sec = (kos_time >> 16); |
int bcd_min = ((kos_time & 0xFF00) >> 8); |
int bcd_hour = (kos_time & 0xFF); |
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__buffertime.tm_sec = ((bcd_sec & 0xF0)>>4)*10 + (bcd_sec & 0x0F); |
__buffertime.tm_min = ((bcd_min & 0xF0)>>4)*10 + (bcd_min & 0x0F); |
__buffertime.tm_hour = ((bcd_hour & 0xF0)>>4)*10 + (bcd_hour & 0x0F); |
//printf("%d %d %d\n", __buffertime.tm_sec, __buffertime.tm_min, __buffertime.tm_hour); |
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return &__buffertime; |
} |
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time_t time (time_t* timer) |
{ |
time_t t = mktime(localtime(0)); |
if (timer) *timer = t; |
return t; |
} |
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time_t mktime (struct tm * timeptr) |
{ |
/*int y, m, d; |
time_t t; |
y = timeptr->tm_year + 1900; |
m = timeptr->tm_mon + 1; |
d = timeptr->tm_mday; // to -1 or not to -1? |
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if (m < 3) { m += 12; y -= 1; } |
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t = y * 365 + y / 4 + y /400 - y / 100; // years - > days |
t += 30 * m + 3 * (m + 1) / 5 + d; // add month days |
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t -= 719561; // 01 jan 1970 |
t *= 86400; |
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t += 3600 * timeptr->tm_hour + 60 * timeptr->tm_min + timeptr->tm_sec; |
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return t;*/ |
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int utcdiff = -3; |
const int mon_days [] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; |
unsigned long int tyears, tdays, leaps, utc_hrs; |
int i; |
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tyears = timeptr->tm_year - 70 ;// tm->tm_year is from 1900. |
leaps = (tyears + 2) / 4; // no of next two lines until year 2100. |
i = (timeptr->tm_year - 100) / 100; |
leaps -= ( (i/4)*3 + i%4 ); |
tdays = 0; |
for (i=0; i < timeptr->tm_mon; i++) tdays += mon_days[i]; |
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tdays += timeptr->tm_mday-1; // days of month passed. |
tdays = tdays + (tyears * 365) + leaps; |
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utc_hrs = timeptr->tm_hour + utcdiff; // for your time zone. |
return (tdays * 86400) + (utc_hrs * 3600) + (timeptr->tm_min * 60) + timeptr->tm_sec; |
} |
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double difftime (time_t end, time_t beginning) |
{ |
return end - beginning; |
} |
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