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wutnewlib: fix gettod

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This commit is contained in:
GaryOderNichts 2021-02-09 17:23:10 +01:00 committed by James
parent 1a03085f37
commit 712843cd58
3 changed files with 26 additions and 20 deletions
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17
libraries/wutnewlib/wut_clock.c
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@ -1,24 +1,9 @@
#include "wut_newlib.h"
#include "wut_clock.h"
#include <coreinit/systeminfo.h>
#include <coreinit/time.h>
// The Wii U epoch is at 2000, so we must map it to 1970 for gettime
#define WIIU_EPOCH_YEAR (2000)
#define EPOCH_YEAR (1970)
#define EPOCH_YEARS_SINCE_LEAP 2
#define EPOCH_YEARS_SINCE_CENTURY 70
#define EPOCH_YEARS_SINCE_LEAP_CENTURY 370
#define EPOCH_DIFF_YEARS (2000 - EPOCH_YEAR)
#define EPOCH_DIFF_DAYS \
((EPOCH_DIFF_YEARS * 365) + \
(EPOCH_DIFF_YEARS - 1 + EPOCH_YEARS_SINCE_LEAP) / 4 - \
(EPOCH_DIFF_YEARS - 1 + EPOCH_YEARS_SINCE_CENTURY) / 100 + \
(EPOCH_DIFF_YEARS - 1 + EPOCH_YEARS_SINCE_LEAP_CENTURY) / 400)
#define EPOCH_DIFF_SECS (60ull * 60ull * 24ull * (uint64_t)EPOCH_DIFF_DAYS)
int
__wut_clock_gettime(clockid_t clock_id,
struct timespec *tp)

17
libraries/wutnewlib/wut_clock.h Normal file
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@ -0,0 +1,17 @@
#pragma once
// The Wii U epoch is at 2000, so we must map it to 1970 for gettime
#define WIIU_EPOCH_YEAR (2000)
#define EPOCH_YEAR (1970)
#define EPOCH_YEARS_SINCE_LEAP 2
#define EPOCH_YEARS_SINCE_CENTURY 70
#define EPOCH_YEARS_SINCE_LEAP_CENTURY 370
#define EPOCH_DIFF_YEARS (2000 - EPOCH_YEAR)
#define EPOCH_DIFF_DAYS \
((EPOCH_DIFF_YEARS * 365) + \
(EPOCH_DIFF_YEARS - 1 + EPOCH_YEARS_SINCE_LEAP) / 4 - \
(EPOCH_DIFF_YEARS - 1 + EPOCH_YEARS_SINCE_CENTURY) / 100 + \
(EPOCH_DIFF_YEARS - 1 + EPOCH_YEARS_SINCE_LEAP_CENTURY) / 400)
#define EPOCH_DIFF_SECS (60ull * 60ull * 24ull * (uint64_t)EPOCH_DIFF_DAYS)

12
libraries/wutnewlib/wut_gettod_r.c
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@ -1,4 +1,5 @@
#include "wut_newlib.h"
#include "wut_clock.h"
#include <coreinit/time.h>
@ -7,12 +8,15 @@ __wut_gettod_r(struct _reent *ptr,
struct timeval *tp,
struct timezone *tz)
{
OSCalendarTime tm;
OSTicksToCalendarTime(OSGetTime(), &tm);
OSTime time = OSGetTime();
if (tp != NULL) {
tp->tv_sec = tm.tm_sec;
tp->tv_usec = tm.tm_usec + tm.tm_msec * 1000;
tp->tv_sec = (time_t)OSTicksToSeconds(time);
time -= OSSecondsToTicks(tp->tv_sec);
tp->tv_usec = (long)OSTicksToMicroseconds(time);
tp->tv_sec += EPOCH_DIFF_SECS;
}
if (tz != NULL) {