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adding time functions

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hyung-hwan
2008-12-18 02:39:15 +00:00
parent d45b0c3127
commit 3d9fbd489f
7 changed files with 195 additions and 50 deletions
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74
ase/lib/cmn/time.c
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@ -11,23 +11,28 @@
#include <time.h>
#endif
#ifdef _WIN32
#define WIN_EPOCH_YEAR ((ase_time_t)1601)
#define WIN_EPOCH_MON ((ase_time_t)1)
#define WIN_EPOCH_DAY ((ase_time_t)1)
#define EPOCH_DIFF_YEARS (ASE_EPOCH_YEAR - WIN_EPOCH_YEAR)
#define EPOCH_DIFF_DAYS (EPOCH_DIFF_YEARS * 365 + EPOCH_DIFF_YEARS / 4 - 3)
#define EPOCH_DIFF_SECS (EPOCH_DIFF_DAYS * 24 * 60 * 60)
#define EPOCH_DIFF_MSECS (EPOCH_DIFF_SECS * ASE_MSEC_IN_SEC)
#endif
#if defined(ASE_USE_SYSCALL) && defined(HAVE_SYS_SYSCALL_H)
#include <sys/syscall.h>
#endif
int ase_gettime (ase_time_t* t)
#ifdef _WIN32
#define WIN_EPOCH_YEAR ((ase_ntime_t)1601)
#define WIN_EPOCH_MON ((ase_ntime_t)1)
#define WIN_EPOCH_DAY ((ase_ntime_t)1)
#define EPOCH_DIFF_YEARS (ASE_EPOCH_YEAR-WIN_EPOCH_YEAR)
#define EPOCH_DIFF_DAYS (EPOCH_DIFF_YEARS*365+EPOCH_DIFF_YEARS/4-3)
#define EPOCH_DIFF_SECS (EPOCH_DIFF_DAYS*24*60*60)
#define EPOCH_DIFF_MSECS (EPOCH_DIFF_SECS*ASE_MSEC_IN_SEC)
#endif
static int ytab[2][12] =
{
{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
};
int ase_gettime (ase_ntime_t* t)
{
#ifdef _WIN32
SYSTEMTIME st;
@ -40,7 +45,7 @@ int ase_gettime (ase_time_t* t)
GetSystemTime (&st);
if (SystemTimeToFileTime (&st, &ft) == FALSE) return -1;
*t = ((ase_time_t)(*((ase_int64_t*)&ft)) / (10 * 1000));
*t = ((ase_ntime_t)(*((ase_int64_t*)&ft)) / (10 * 1000));
*t -= EPOCH_DIFF_MSECS;
return 0;
#else
@ -59,7 +64,7 @@ int ase_gettime (ase_time_t* t)
#endif
}
int ase_settime (ase_time_t t)
int ase_settime (ase_ntime_t t)
{
#ifdef _WIN32
FILETIME ft;
@ -86,3 +91,42 @@ int ase_settime (ase_time_t t)
#endif
}
void ase_gmtime (ase_ntime_t nt, ase_btime_t* bt)
{
/* code based on minix 2.0 src/lib/ansi/gmtime.c */
ase_ntime_t days; /* total days */
ase_ntime_t secs; /* number of seconds in the fractional days */
ase_ntime_t time; /* total seconds */
int year = ASE_EPOCH_YEAR;
time = nt / ASE_MSEC_IN_SEC;
days = (unsigned long)time / ASE_SEC_IN_DAY;
secs = (unsigned long)time % ASE_SEC_IN_DAY;
bt->sec = secs % ASE_SEC_IN_MIN;
bt->min = (secs % ASE_SEC_IN_HOUR) / ASE_SEC_IN_MIN;
bt->hour = secs / ASE_SEC_IN_HOUR;
bt->wday = (days + 4) % ASE_DAY_IN_WEEK;
while (days >= ASE_DAY_IN_YEAR(year))
{
days -= ASE_DAY_IN_YEAR(year);
year++;
}
bt->year = year - 1900;
bt->yday = days;
bt->mon = 0;
while (days >= ytab[ASE_IS_LEAPYEAR(year)][bt->mon])
{
days -= ytab[ASE_IS_LEAPYEAR(year)][bt->mon];
bt->mon++;
}
bt->mday = days + 1;
bt->isdst = 0;
}