On May 2, 2019, at 3:45 AM, Huw Davies <huw(a)codeweavers.com> wrote:
Signed-off-by: Huw Davies <huw(a)codeweavers.com> --- dlls/ntdll/ntdll.spec | 1 + dlls/ntdll/time.c | 33 +++++++++++++++++++++++++++++++++ include/winternl.h | 1 + 3 files changed, 35 insertions(+)
diff --git a/dlls/ntdll/time.c b/dlls/ntdll/time.c index 443d8b26be..d0a7954377 100644 --- a/dlls/ntdll/time.c +++ b/dlls/ntdll/time.c @@ -474,6 +474,39 @@ NTSTATUS WINAPI NtQuerySystemTime( PLARGE_INTEGER Time ) return STATUS_SUCCESS; }
+/*********************************************************************** + * RtlGetSystemTimePrecise [NTDLL.@] + * + * Get a more accurate current system time. + * + * RETURNS + * The current system time. + */ +LONGLONG WINAPI RtlGetSystemTimePrecise( void ) +{ + LONGLONG time; + +#if defined(HAVE_CLOCK_GETTIME) + struct timespec ts; + + if (!clock_gettime( CLOCK_REALTIME, &ts )) + { + time = ts.tv_sec * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970; + time += (ts.tv_nsec + 50) / 100; + } + else +#endif
Using clock_gettime() on macOS is a bit problematic because of backward deployment and weak linking. See <https://source.winehq.org/git/wine.git/commit/27c71e09ad51ba6aa672a46379efd1... <https://source.winehq.org/git/wine.git/commit/27c71e09ad51ba6aa672a46379efd10b5959863f>>, although that's not necessarily my preferred approach. (I wanted to check if it was available at run-time and use it, if so. Alexandre didn't like that.) -Ken