kernelbase: Implement QueryInterruptTime.

dlls/kernelbase/kernelbase.spec

@@ -1234,7 +1234,7 @@
 @ stdcall QueryFullProcessImageNameW(ptr long ptr ptr)
 # @ stub QueryIdleProcessorCycleTime
 # @ stub QueryIdleProcessorCycleTimeEx
-# @ stub QueryInterruptTime
+@ stdcall QueryInterruptTime(ptr)
 # @ stub QueryInterruptTimePrecise
 @ stdcall QueryMemoryResourceNotification(ptr ptr)
 # @ stub QueryOptionalDelayLoadedAPI

dlls/kernelbase/sync.c

@@ -205,6 +205,23 @@ ULONGLONG WINAPI DECLSPEC_HOTPATCH GetTickCount64(void)
 }
 
 
+/******************************************************************************
+ *           QueryInterruptTime  (kernelbase.@)
+ */
+void WINAPI DECLSPEC_HOTPATCH QueryInterruptTime( ULONGLONG *time )
+{
+    ULONG high, low;
+
+    do
+    {
+        high = user_shared_data->InterruptTime.High1Time;
+        low = user_shared_data->InterruptTime.LowPart;
+    }
+    while (high != user_shared_data->InterruptTime.High2Time);
+    *time = (ULONGLONG)high << 32 | low;
+}
+
+
 /***********************************************************************
  * Waits
  ***********************************************************************/