func (b *BpTree) keyIter(raw fs2.ItemIterator) (it KeyIterator) {
it = func() (key *subgraph.SubGraph, err error, _ KeyIterator) {
b.mutex.Lock()
defer b.mutex.Unlock()
var i []byte
i, err, raw = raw()
if err != nil {
return nil, err, nil
}
if raw == nil {
return nil, nil, nil
}
key = subgraph_embedding.DeserializeSubGraph(i)
return key, nil, it
}
return it
}
func (b *BpTree) kvIter(kvi fs2.Iterator) (it Iterator) {
it = func() (key *subgraph.SubGraph, value []map[int]bool, err error, _ Iterator) {
b.mutex.Lock()
defer b.mutex.Unlock()
var k, v []byte
k, v, err, kvi = kvi()
if err != nil {
return nil, nil, err, nil
}
if kvi == nil {
return nil, nil, nil, nil
}
key = subgraph_embedding.DeserializeSubGraph(k)
value = DeserializeOverlap(v)
return key, value, nil, it
}
return it
}