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-rw-r--r--timeval.h76
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+/*
+ * timeval.h 1.0 01/12/19
+ *
+ * Defines gettimeofday, timeval, etc. for Win32
+ *
+ * By Wu Yongwei
+ *
+ */
+
+#ifndef _TIMEVAL_H
+#define _TIMEVAL_H
+
+#ifdef _WIN32
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <time.h>
+
+#ifndef __GNUC__
+#define EPOCHFILETIME (116444736000000000i64)
+#else
+#define EPOCHFILETIME (116444736000000000LL)
+#endif /* not __GNUC__ */
+
+#if 0
+struct timeval {
+ long tv_sec; /* seconds */
+ long tv_usec; /* microseconds */
+};
+#endif /* 0 */
+
+struct timezone {
+ int tz_minuteswest; /* minutes W of Greenwich */
+ int tz_dsttime; /* type of dst correction */
+};
+
+__inline int gettimeofday(struct timeval *tv, struct timezone *tz)
+{
+ FILETIME ft;
+ LARGE_INTEGER li;
+ __int64 t;
+ static int tzflag;
+
+ if (tv)
+ {
+ GetSystemTimeAsFileTime(&ft);
+ li.LowPart = ft.dwLowDateTime;
+ li.HighPart = ft.dwHighDateTime;
+ t = li.QuadPart; /* In 100-nanosecond intervals */
+ t -= EPOCHFILETIME; /* Offset to the Epoch time */
+ t /= 10; /* In microseconds */
+ tv->tv_sec = (long)(t / 1000000);
+ tv->tv_usec = (long)(t % 1000000);
+ }
+
+ if (tz)
+ {
+ if (!tzflag)
+ {
+ _tzset();
+ tzflag++;
+ }
+ tz->tz_minuteswest = _timezone / 60;
+ tz->tz_dsttime = _daylight;
+ }
+
+ return 0;
+}
+
+#else /* _WIN32 */
+
+#include <sys/time.h>
+
+#endif /* _WIN32 */
+
+#endif /* _TIMEVAL_H */