WSJT-X/lib/timeval.h
Joe Taylor b831d1e08e 1. Add the sample files described in the User's Guide.
2. Remove offending redefinition of "struct timezone" in timeval.h, it's
no longer needed.  (Let me know if this breaks anyone's build procedure!!)


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3552 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2013-08-15 20:55:05 +00:00

76 lines
1.4 KiB
C

/*
* 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
//struct timeval {
// long tv_sec; /* seconds */
// long tv_usec; /* microseconds */
//};
/*
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 */