[PATCH 2/2] ntdll: Use __commpage_gettimeofday in NtQuerySystemTime on macOS.

[Marc-Aurel Zent]

From: Marc-Aurel Zent

---
 dlls/ntdll/unix/sync.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/dlls/ntdll/unix/sync.c b/dlls/ntdll/unix/sync.c
index 21f194c9b35..85993c3b32b 100644
--- a/dlls/ntdll/unix/sync.c
+++ b/dlls/ntdll/unix/sync.c
@@ -1704,7 +1704,13 @@ NTSTATUS WINAPI NtQueryPerformanceCounter( LARGE_INTEGER *counter, LARGE_INTEGER
  */
 NTSTATUS WINAPI NtQuerySystemTime( LARGE_INTEGER *time )
 {
-#ifdef HAVE_CLOCK_GETTIME
+#ifdef __APPLE__
+    extern int __commpage_gettimeofday( struct timeval *tp );
+    struct timeval tp;
+    if (__commpage_gettimeofday( &tp ) == KERN_SUCCESS)
+        time->QuadPart = ticks_from_time_t( tp.tv_sec ) + tp.tv_usec * 10;
+    else
+#elif defined(HAVE_CLOCK_GETTIME)
     struct timespec ts;
     static clockid_t clock_id = CLOCK_MONOTONIC; /* placeholder */