Implementation of Get/SetThreadPriorityBoost.

dlls/kernel/kernel32.spec

@@ -892,7 +892,7 @@ import  ntdll.dll
 874 stdcall GetFileAttributesExA(str long ptr) GetFileAttributesExA
 875 stdcall GetFileAttributesExW(wstr long ptr) GetFileAttributesExW
 876 stub GetProcessPriorityBoost
-877 stub GetThreadPriorityBoost
+877 stdcall GetThreadPriorityBoost(long ptr) GetThreadPriorityBoost 
 878 stdcall InterlockedCompareExchange (ptr long long) InterlockedCompareExchange
 879 stdcall InterlockedExchangeAdd (ptr long ) InterlockedExchangeAdd
 880 stdcall IsProcessorFeaturePresent(long) IsProcessorFeaturePresent
@@ -908,7 +908,7 @@ import  ntdll.dll
 890 stdcall SetProcessAffinityMask(long long) SetProcessAffinityMask
 891 stdcall SetProcessPriorityBoost(long long) SetProcessPriorityBoost
 892 stub SetThreadIdealProcessor
-893 stub SetThreadPriorityBoost
+893 stdcall SetThreadPriorityBoost(long long) SetThreadPriorityBoost
 894 stdcall SetWaitableTimer(long ptr long ptr ptr long) SetWaitableTimer
 895 stub SignalObjectAndWait
 896 stub SwitchToFiber

include/winbase.h

@@ -1463,6 +1463,7 @@ INT         WINAPI GetTimeFormatW(LCID,DWORD,LPSYSTEMTIME,LPCWSTR,LPWSTR,INT);
 BOOL        WINAPI GetThreadContext(HANDLE,CONTEXT *);
 LCID        WINAPI GetThreadLocale(void);
 INT       WINAPI GetThreadPriority(HANDLE);
+BOOL        WINAPI GetThreadPriorityBoost(HANDLE,PBOOL);
 BOOL      WINAPI GetThreadSelectorEntry(HANDLE,DWORD,LPLDT_ENTRY);
 BOOL        WINAPI GetThreadTimes(HANDLE,LPFILETIME,LPFILETIME,LPFILETIME,LPFILETIME);
 BOOL        WINAPI GetTokenInformation(HANDLE,TOKEN_INFORMATION_CLASS,LPVOID,DWORD,LPDWORD);
@@ -1612,6 +1613,7 @@ DWORD       WINAPI SetThreadAffinityMask(HANDLE,DWORD);
 BOOL        WINAPI SetThreadContext(HANDLE,const CONTEXT *);
 BOOL        WINAPI SetThreadLocale(LCID);
 BOOL        WINAPI SetThreadPriority(HANDLE,INT);
+BOOL        WINAPI SetThreadPriorityBoost(HANDLE,BOOL);
 BOOL        WINAPI SetThreadToken(PHANDLE,HANDLE);
 BOOL        WINAPI SetTimeZoneInformation(const LPTIME_ZONE_INFORMATION);
 BOOL        WINAPI SetWaitableTimer(HANDLE,const LARGE_INTEGER*,LONG,PTIMERAPCROUTINE,LPVOID,BOOL);

scheduler/thread.c

@@ -574,6 +574,42 @@ BOOL WINAPI SetThreadPriority(
 
 
 /**********************************************************************
+ * GetThreadPriorityBoost [KERNEL32.877]  Returns priority boost for thread.
+ *
+ * Always reports that priority boost is disabled.
+ *
+ * RETURNS
+ *    Success: TRUE.
+ *    Failure: FALSE
+ */
+BOOL WINAPI GetThreadPriorityBoost(
+    HANDLE hthread, /* [in] Handle to thread */
+    PBOOL pstate)   /* [out] pointer to var that receives the boost state */
+{
+    if (pstate) *pstate = FALSE;
+    return NO_ERROR;
+}
+
+
+/**********************************************************************
+ * SetThreadPriorityBoost [KERNEL32.893]  Sets priority boost for thread.
+ *
+ * Priority boost is not implemented. Thsi function always returns 
+ * FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
+ *
+ * RETURNS
+ *    Always returns FALSE to indicate a failure 
+ */
+BOOL WINAPI SetThreadPriorityBoost(
+    HANDLE hthread, /* [in] Handle to thread */
+    BOOL disable)   /* [in] TRUE to disable priority boost */
+{
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}
+
+
+/**********************************************************************
  *           SetThreadAffinityMask   (KERNEL32.669)
  */
 DWORD WINAPI SetThreadAffinityMask( HANDLE hThread, DWORD dwThreadAffinityMask )