SylixOS提供线程私有变量接口，可用于为线程提供私有数据（ULONG类型）。
接口ULONG API_ThreadVarAdd (LW_OBJECT_HANDLE ulId, ULONG *pulAddr)
ULONG API_ThreadVarDelete (LW_OBJECT_HANDLE ulId, ULONG *pulAddr)
ULONG API_ThreadVarGet (LW_OBJECT_HANDLE ulId, ULONG *pulAddr)
ULONG API_ThreadVarInfo (LW_OBJECT_HANDLE ulId, ULONG *pulAddr[], INT iMaxCounter)
ULONG API_ThreadVarSet (LW_OBJECT_HANDLE ulId, ULONG *pulAddr, ULONG ulValue)示例
