diff options
Diffstat (limited to 'base/util_gettimeofday.c')
-rw-r--r-- | base/util_gettimeofday.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/base/util_gettimeofday.c b/base/util_gettimeofday.c new file mode 100644 index 00000000..6388bf92 --- /dev/null +++ b/base/util_gettimeofday.c @@ -0,0 +1,50 @@ +#include <time.h>
+#include <Winsock2.h>
+#include <windows.h>
+
+#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
+ #define DELTA_EPOCH_IN_MICROSECS 11644473600000000Ui64
+#else
+ #define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
+#endif
+
+struct timezone
+{
+ int tz_minuteswest; /* minutes W of Greenwich */
+ int tz_dsttime; /* type of dst correction */
+};
+
+int gettimeofday(struct timeval *tv, struct timezone *tz)
+{
+ FILETIME ft;
+ unsigned __int64 tmpres = 0;
+ static int tzflag = 0;
+
+ if (NULL != tv)
+ {
+ GetSystemTimeAsFileTime(&ft);
+
+ tmpres |= ft.dwHighDateTime;
+ tmpres <<= 32;
+ tmpres |= ft.dwLowDateTime;
+
+ tmpres /= 10; /*convert into microseconds*/
+ /*converting file time to unix epoch*/
+ tmpres -= DELTA_EPOCH_IN_MICROSECS;
+ tv->tv_sec = (long)(tmpres / 1000000UL);
+ tv->tv_usec = (long)(tmpres % 1000000UL);
+ }
+
+ if (NULL != tz)
+ {
+ if (!tzflag)
+ {
+ _tzset();
+ tzflag++;
+ }
+ tz->tz_minuteswest = _timezone / 60;
+ tz->tz_dsttime = _daylight;
+ }
+
+ return 0;
+}
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