X-Git-Url: https://git.llucax.com/z.facultad/75.52/treemulator.git/blobdiff_plain/0997831a9dd5e4359fc70f7f7ff59c1a97132ddc..a164e095defb0f86d8dcde22c6054b5e2bc7da7b:/src/btree.cpp diff --git a/src/btree.cpp b/src/btree.cpp index 093377b..48f4937 100644 --- a/src/btree.cpp +++ b/src/btree.cpp @@ -103,21 +103,44 @@ Clave* BTree::AddKeyR (const Clave *k, uint node_num, uint &left_child, uint &ri ReadNodoHeader (node, &node_header); if (node_header.level != 0) { + std::cout << "Entrando nodo level = " << node_header.level << std::endl; /* No estoy en una hoja, asi que tengo que buscar * para donde moverme para agregar la clave */ - /* TODO :) */ + std::cout << "Leo Claves" << std::endl; node_keys = ReadKeys (node, node_header); + std::list::iterator it = node_keys.begin (); + std::list::iterator posterior; + std::list::iterator ultima; /* Se supone que la primera es un hijo :) */ - //BTreeData *left_child = (*it); - PrintNode (node_num); - std::cout << "TODO!!" << std::endl; - return NULL; + BTreeData *lchild = (*it++); + posterior = it; + + while (it != node_keys.end ()) { + if ((*data) < (*(*it))) + break; + ultima = it; + it++; + } + + if (it == posterior) { + std::cout << "==== Me voy al nodo " << lchild->getChild () << std::endl; + k = AddKeyR (k, lchild->getChild (), left_child, right_child); + } else { + std::cout << "==== Me voy al nodo " << (*ultima)->getChild () << std::endl; + k = AddKeyR (k, (*ultima)->getChild (), left_child, right_child); + } + if (k) { + data = new BTreeData (k->Clone (), right_child); + } } + /* Nada que hacer */ + if (!k) return NULL; + /* Estoy en una hoja, veo si lo puedo agregar */ if (node_header.free_space > data->Size ()) { @@ -131,6 +154,7 @@ Clave* BTree::AddKeyR (const Clave *k, uint node_num, uint &left_child, uint &ri if ((*data) < (*datait)) /* Me pase, lo agrego aca! */ break; + it++; } node_keys.insert (it, data); WriteKeys (node, node_header, node_keys); @@ -147,19 +171,28 @@ Clave* BTree::AddKeyR (const Clave *k, uint node_num, uint &left_child, uint &ri uint new_node_num; uchar *new_node = NewBlock (new_node_num); ReadNodoHeader (new_node, &new_node_header); + new_node_header.level = node_header.level; node_keys = ReadKeys (node, node_header); new_node_keys = ReadKeys (new_node, new_node_header); /* Agrego la clave en la lista que ya tengo de manera ordenada */ std::list::iterator it = node_keys.begin (); + std::list::iterator previt = node_keys.begin (); + if (node_header.level != 0) { + /* La primera es ChildData */ + it++; + previt = it; + } + while (it != node_keys.end ()) { BTreeData *datait; datait = (*it); if ((*data) < (*datait)) /* Me pase, lo agrego aca! */ break; + previt = it; it++; } if (it != node_keys.end ()) @@ -195,7 +228,14 @@ Clave* BTree::AddKeyR (const Clave *k, uint node_num, uint &left_child, uint &ri used += d->Size (); it++; } - kout = (*it++)->getClave (); // Esta se retorna al "padre" para que se la agregue + kout = (*it)->getClave (); // Esta se retorna al "padre" para que se la agregue + if (node_header.level != 0) { + new_node_keys.push_back ( new BTreeChildData ((*it)->getChild ())); + } + it++; + + std::string s = *kout; + std::cout << "SPLIT Retorna : " << s << std::endl; while (it != node_keys.end ()) { BTreeData *d = (*it); new_node_keys.push_back (d); @@ -315,8 +355,9 @@ void BTree::PrintNode (uint num) std::cout << "Items : " << node_header.item_count << std::endl; std::cout << "Free : " << node_header.free_space << " (" << (header.block_size - sizeof (BTreeNodeHeader)) << ")" << std::endl; while (it != node_keys.end ()) { - std::string s = (*it); - std::cout << "(" << s << ") "; + std::string s = *(*it); + std::cout << s << " "; + it++; } std::cout << std::endl;