func UploadStream(block1, block2 []byte, rand, src io.Reader, bck bucket.Bucket, tupleSize int, depth int) (broken bool, rest int, tuple [][]byte, e error) {
broken = false
hdr := blockheader.NewHeader()
descr := &descriptor.DescriptorBlock{Header: hdr}
hdr.TupleSize = tupleSize
i := 0
if depth <= 1 {
for (i + tupleSize) <= MaxHashes {
readed, tuple, e := GenerateTuple(block1, block2, rand, src, bck, tupleSize)
if e != nil {
return false, 0, nil, e
}
descr.AddBlock(tuple)
i += tupleSize
rest = readed
if readed < BlockSize {
broken = true
break
}
}
} else {
for (i + tupleSize) <= MaxHashes {
broken2, rest2, tuple2, e2 := UploadStream(block1, block2, rand, src, bck, tupleSize, depth-1)
if e2 != nil {
return false, 0, nil, e2
}
descr.AddBlock(tuple2)
i += tupleSize
rest = rest2
if broken2 || rest2 < BlockSize {
broken = true
break
}
}
}
if len(descr.Tuples) == 1 {
tuple = descr.Tuples[0]
return
}
descr.UpdateHeader()
if !descr.Serialize(rand, block1) {
return broken, 0, nil, errors.New("serialisation-error")
}
tuple, e = GenerateTupleFromBlock(block1, block2, rand, bck, tupleSize)
return
}
// This is a simple update function. It doesnt create ddblocks (Descriptors of Descriptors).
func UploadStreamSimple(block1, block2 []byte, rand, src io.Reader, bck bucket.Bucket, tupleSize int) (rest int, tuple [][]byte, e error) {
hdr := blockheader.NewHeader()
descr := &descriptor.DescriptorBlock{Header: hdr}
hdr.TupleSize = tupleSize
i := 0
for (i + tupleSize) <= MaxHashes {
readed, tuple, e := GenerateTuple(block1, block2, rand, src, bck, tupleSize)
if e != nil {
return 0, nil, e
}
descr.AddBlock(tuple)
i += tupleSize
rest = readed
if readed < BlockSize {
break
}
}
descr.UpdateHeader()
if !descr.Serialize(rand, block1) {
return 0, nil, errors.New("serialisation-error")
}
tuple, e = GenerateTupleFromBlock(block1, block2, rand, bck, tupleSize)
return
}