deletebuffer

type BufferItem struct {
	PartitionID int64
	DeleteData  storage.DeleteData
}

type DeleteBuffer[T timed] interface {
	Put(T)
	ListAfter(uint64) []T
	SafeTs() uint64
	TryDiscard(uint64)
	// Size returns current size information of delete buffer: entryNum and memory
	Size() (entryNum, memorySize int64)

	// Register L0 segment
	RegisterL0(segments ...segments.Segment)
	// ListAll L0
	ListL0() []segments.Segment
	// Clean delete data, include l0 segment and delete buffer
	UnRegister(ts uint64)

	// clean up delete buffer
	Clear()

	// Pin/Unpin methods for protecting specific timestamps from cleanup
	Pin(ts uint64, segmentID int64)
	Unpin(ts uint64, segmentID int64)
}

type Item struct {
	Ts   uint64
	Data []BufferItem
}