From: Benjamin Fischer <bfis@gmx.net> The implementations of _time32 & _time64 internally used _ftime64, which also needs to query timezone information via GetTimeZoneInformation() which can be fairly expensive i.e. somewhere down the line is a localtime() call that practically always triggers at least a stat syscall, which is a lot of overhead for merely querying the time. --- dlls/msvcrt/time.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/dlls/msvcrt/time.c b/dlls/msvcrt/time.c index 9b0cbb4969f..352a91fb058 100644 --- a/dlls/msvcrt/time.c +++ b/dlls/msvcrt/time.c @@ -780,11 +780,12 @@ int CDECL _ftime32_s(struct __timeb32 *buf) __time64_t CDECL _time64(__time64_t *buf) { __time64_t curtime; - struct __timeb64 tb; - - _ftime64(&tb); + FILETIME ft; + ULONGLONG time; - curtime = tb.time; + GetSystemTimeAsFileTime(&ft); + time = ((ULONGLONG)ft.dwHighDateTime << 32) | ft.dwLowDateTime; + curtime = time / TICKSPERSEC - SECS_1601_TO_1970; return buf ? *buf = curtime : curtime; } @@ -794,11 +795,10 @@ __time64_t CDECL _time64(__time64_t *buf) __time32_t CDECL _time32(__time32_t *buf) { __time32_t curtime; - struct __timeb64 tb; - - _ftime64(&tb); + __time64_t time; - curtime = (tb.time == (__time32_t)tb.time) ? tb.time : -1; + time = _time64(NULL); + curtime = (time == (__time32_t)time) ? time : -1; return buf ? *buf = curtime : curtime; } -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/10893