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Fix Windows gettimeofday() implementation - were off by 10

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This commit is contained in:
Dmitri Tikhonov 2018-04-20 16:11:25 -04:00
parent 5296a94ba2
commit 560db45b8e
1 changed files with 13 additions and 11 deletions
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24
src/liblsquic/lsquic_logger.c
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@ -3,6 +3,7 @@
* LSQUIC Logger implementation.
*/
#include <assert.h>
#include <errno.h>
#include <inttypes.h>
#include <stdarg.h>
@ -124,7 +125,7 @@ lsquic_printf (const char *fmt, ...)
#ifdef WIN32
#define DELTA_EPOCH_IN_MICROSECS 11644473600000000Ui64
#define DELTA_EPOCH_IN_TICKS 116444736000000000Ui64
struct timezone
{
time_t tz_minuteswest; /* minutes W of Greenwich */
@ -135,22 +136,19 @@ static int
gettimeofday (struct timeval *tv, struct timezone *tz)
{
FILETIME ft;
unsigned __int64 tmpres = 0;
uint64_t tmpres;
static int tzflag;
if (NULL != tv)
{
GetSystemTimeAsFileTime(&ft);
tmpres |= ft.dwHighDateTime;
tmpres <<= 32;
tmpres |= ft.dwLowDateTime;
tmpres = ((uint64_t) ft.dwHighDateTime << 32)
| (ft.dwLowDateTime);
/*converting file time to unix epoch */
tmpres -= DELTA_EPOCH_IN_MICROSECS;
tmpres /= 10; /*convert into microseconds */
tv->tv_sec = (long) (tmpres / 1000000UL);
tv->tv_usec = (long) (tmpres % 1000000UL);
tmpres -= DELTA_EPOCH_IN_TICKS;
tv->tv_sec = tmpres / 10000000;
tv->tv_usec = tmpres % 1000000;
}
if (NULL != tz)
@ -179,8 +177,12 @@ print_timestamp (void)
gettimeofday(&tv, NULL);
#ifdef WIN32
{
#ifndef NDEBUG
errno_t e;
#endif
time_t t = tv.tv_sec;
localtime_s(&tm, &t); // Could be a macro, but then a type mismatch.
e = localtime_s(&tm, &t);
assert(!e);
}
#else
localtime_r(&tv.tv_sec, &tm);