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Added windows gettimeofday function and timeval macros

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This commit is contained in:
frekky 2015-09-28 12:26:41 +08:00
parent c48822dfbe
commit 33525e5086
1 changed files with 81 additions and 2 deletions
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83
src/windows.h
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@ -25,6 +25,7 @@ typedef unsigned int in_addr_t;
#include <windns.h>
#include <ws2tcpip.h>
#include <iphlpapi.h>
#include <time.h>
/* Missing from the mingw headers */
#ifndef DNS_TYPE_SRV
@ -74,7 +75,7 @@ typedef struct {
} HEADER;
struct ip
{
{
unsigned int ip_hl:4; /* header length */
unsigned int ip_v:4; /* version */
u_char ip_tos; /* type of service */
@ -89,7 +90,85 @@ struct ip
u_char ip_p; /* protocol */
u_short ip_sum; /* checksum */
struct in_addr ip_src, ip_dst; /* source and dest address */
};
};
/* windows gettimeofday from https://gist.github.com/ugovaretto/5875385 */
#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
#define DELTA_EPOCH_IN_MICROSECS 116444736000000000Ui64
#else
#define DELTA_EPOCH_IN_MICROSECS 116444736000000000ULL
#endif
/* Convenience macros for operations on timevals.
NOTE: `timercmp' does not work for >= or <=. */
#define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
#define timerclear(tvp) ((tvp)->tv_sec = (tvp)->tv_usec = 0)
#define timercmp(a, b, CMP) \
(((a)->tv_sec == (b)->tv_sec) ? \
((a)->tv_usec CMP (b)->tv_usec) : \
((a)->tv_sec CMP (b)->tv_sec))
#define timeradd(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec + (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec + (b)->tv_usec; \
if ((result)->tv_usec >= 1000000) \
{ \
++(result)->tv_sec; \
(result)->tv_usec -= 1000000; \
} \
} while (0)
#define timersub(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
if ((result)->tv_usec < 0) { \
--(result)->tv_sec; \
(result)->tv_usec += 1000000; \
} \
} while (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;
unsigned __int64 tmpres = 0;
static int tzflag = 0;
if (NULL != tv)
{
GetSystemTimeAsFileTime(&ft);
tmpres |= ft.dwHighDateTime;
tmpres <<= 32;
tmpres |= ft.dwLowDateTime;
/* convert into microseconds */
tmpres /= 10;
/* 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;
}
DWORD WINAPI tun_reader(LPVOID arg);
struct tun_data {