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Add support for Visual Studio 2019

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Marius Greuel
2020-01-18 19:05:50 +02:00
parent d4aeff190e
commit a9f311ba84
130 changed files with 32036 additions and 13 deletions
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76
msvc/gettimeofday.c Normal file
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/**
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the mingw-w64 runtime package.
* No warranty is given; refer to the file DISCLAIMER.PD within this package.
*/
#include <time.h>
#include <sys/time.h>
#include <sys/timeb.h>
#include <errno.h>
#include <windows.h>
#define FILETIME_1970 116444736000000000ull /* seconds between 1/1/1601 and 1/1/1970 */
#define HECTONANOSEC_PER_SEC 10000000ull
int getntptimeofday(struct timespec *, struct timezone *);
int getntptimeofday(struct timespec *tp, struct timezone *z)
{
int res = 0;
union
{
unsigned long long ns100; /*time since 1 Jan 1601 in 100ns units */
FILETIME ft;
} _now;
TIME_ZONE_INFORMATION TimeZoneInformation;
DWORD tzi;
if (z != NULL)
{
if ((tzi = GetTimeZoneInformation(&TimeZoneInformation)) != TIME_ZONE_ID_INVALID)
{
z->tz_minuteswest = TimeZoneInformation.Bias;
if (tzi == TIME_ZONE_ID_DAYLIGHT)
z->tz_dsttime = 1;
else
z->tz_dsttime = 0;
}
else
{
z->tz_minuteswest = 0;
z->tz_dsttime = 0;
}
}
if (tp != NULL)
{
GetSystemTimeAsFileTime(&_now.ft); /* 100-nanoseconds since 1-1-1601 */
/* The actual accuracy on XP seems to be 125,000 nanoseconds = 125 microseconds = 0.125 milliseconds */
_now.ns100 -= FILETIME_1970; /* 100 nano-seconds since 1-1-1970 */
tp->tv_sec = _now.ns100 / HECTONANOSEC_PER_SEC; /* seconds since 1-1-1970 */
tp->tv_nsec = (long)(_now.ns100 % HECTONANOSEC_PER_SEC) * 100; /* nanoseconds */
}
return res;
}
int __cdecl gettimeofday(struct timeval *p, void *z)
{
struct timespec tp;
if (getntptimeofday(&tp, (struct timezone *) z))
return -1;
p->tv_sec = (long)tp.tv_sec;
p->tv_usec = (tp.tv_nsec / 1000);
return 0;
}
int __cdecl mingw_gettimeofday(struct timeval *p, struct timezone *z)
{
struct timespec tp;
if (getntptimeofday(&tp, z))
return -1;
p->tv_sec = (long)tp.tv_sec;
p->tv_usec = (tp.tv_nsec / 1000);
return 0;
}