def __init__(self):
        vstruct.VStruct.__init__(self)
        self.LocalData = v_ptr32()
        self.ActiveSubsegment = v_ptr32()
        self.CachedItems = vstruct.VArray([ v_ptr32() for i in xrange(16) ])
        self.SListHeader = SLIST_HEADER()
        self.Counters = HEAP_BUCKET_COUNTERS()
        self.LastOpSequence = v_uint32()
        self.BucketIndex = v_uint16()
        self.LastUsed = v_uint16()
        self.NoThrashCount = v_uint16()
        self._pad0068 = v_bytes(size=6)