// DefaultMCSAllocation returns a label from the MCS range that matches the offset // within the overall range. blockSize must be a positive integer representing the // number of labels to jump past in the category space (if 1, range == label, if 2 // each range will have two labels). func DefaultMCSAllocation(from *uid.Range, to *mcs.Range, blockSize int) MCSAllocationFunc { return func(block uid.Block) *mcs.Label { ok, offset := from.Offset(block) if !ok { return nil } if blockSize > 0 { offset = offset * uint32(blockSize) } label, _ := to.LabelAt(uint64(offset)) return label } }