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https://github.com/lwip-tcpip/lwip.git
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67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
#include <time.h>
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#include <windows.h>
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#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
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#define DELTA_EPOCH_IN_MICROSECS 11644473600000000Ui64
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#else
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#define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
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#endif
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#include "config.h"
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struct timezone
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{
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int tz_minuteswest; /* minutes W of Greenwich */
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int tz_dsttime; /* type of dst correction */
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};
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int gettimeofday(struct timeval *tv, struct timezone *tz)
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{
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FILETIME ft;
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unsigned __int64 tmpres = 0;
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static int tzflag;
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if (NULL != tv) {
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GetSystemTimeAsFileTime(&ft);
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tmpres |= ft.dwHighDateTime;
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tmpres <<= 32;
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tmpres |= ft.dwLowDateTime;
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/*converting file time to unix epoch*/
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tmpres -= DELTA_EPOCH_IN_MICROSECS;
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tmpres /= 10; /*convert into microseconds*/
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tv->tv_sec = (long)(tmpres / 1000000UL);
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tv->tv_usec = (long)(tmpres % 1000000UL);
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}
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if (NULL != tz) {
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if (!tzflag) {
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_tzset();
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tzflag++;
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}
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tz->tz_minuteswest = _timezone / 60;
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tz->tz_dsttime = _daylight;
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}
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return 0;
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}
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struct tm *
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localtime_r(const time_t *timer, struct tm *result)
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{
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struct tm *local_result;
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if (result == NULL) {
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return NULL;
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}
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local_result = localtime (timer);
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if (local_result == NULL) {
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return NULL;
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}
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memcpy(result, local_result, sizeof(*result));
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return result;
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}
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