Method NeededByteRanges

syncer.go:161–173

NeededByteRanges returns the byte ranges of the target file that still need to be obtained. Public for advanced use only: this is mainly used internally, but can be used by the caller if desired.

()

// Public for advanced use only: this is mainly used internally, but can be
// used by the caller if desired.
func (zs *Syncer) NeededByteRanges() []ByteRange {
	blockRanges := zs.rs.NeededBlockRanges(0, rcksum.BlockID(zs.blocks-1))
	byteRanges := make([]ByteRange, len(blockRanges))
	for i, br := range blockRanges {
		byteRanges[i].Start = int64(br.Start) * zs.blocksize
		end := int64(br.End+1)*zs.blocksize - 1
		if end >= zs.filelen {
			end = zs.filelen - 1
		}
		byteRanges[i].End = end
	}
	return byteRanges
}

// SubmitTargetData takes received blocks of target data and uses them to fill
// in missing chunks of the target file.