[tkreuzer] 46143: [WDM] - fix definition of KeTickCount - Add KeQueryTickCount (note: MS version is very hacky. Someone tell them how to use DECLSPEC_IMPORT)

Author: tkreuzer
Date: Fri Mar 12 18:48:50 2010
New Revision: 46143

URL: http://svn.reactos.org/svn/reactos?rev=46143&view=rev
Log:
[WDM]
- fix definition of KeTickCount
- Add KeQueryTickCount (note: MS version is very hacky. Someone tell them how to use DECLSPEC_IMPORT)

Modified:
    branches/header-work/include/ddk/wdm.h

Modified: branches/header-work/include/ddk/wdm.h
URL: http://svn.reactos.org/svn/reactos/branches/header-work/include/ddk/wdm.h?re...
==============================================================================
--- branches/header-work/include/ddk/wdm.h [iso-8859-1] (original)
+++ branches/header-work/include/ddk/wdm.h [iso-8859-1] Fri Mar 12 18:48:50 2010
@@ -5194,7 +5194,7 @@
   ULONG  Spare1;
 } KFLOATING_SAVE, *PKFLOATING_SAVE;

-extern volatile KSYSTEM_TIME KeTickCount;
+extern NTKERNELAPI volatile KSYSTEM_TIME KeTickCount;

#define YieldProcessor _mm_pause

@@ -5294,6 +5294,21 @@

/* x86 and x64 performs a 0x2C interrupt */
 #define DbgRaiseAssertionFailure __int2c
+
+FORCEINLINE
+VOID
+_KeQueryTickCount(
+  OUT PLARGE_INTEGER CurrentCount)
+{
+    for (;;)
+    {
+        CurrentCount->HighPart = KeTickCount.High1Time;
+        CurrentCount->LowPart = KeTickCount.LowPart;
+        if (CurrentCount->HighPart == KeTickCount.High2Time) break;
+        YieldProcessor();
+    }
+}
+#define KeQueryTickCount(CurrentCount) _KeQueryTickCount(CurrentCount)

#endif /* _X86_ */