X-Git-Url: https://git.llucax.com/z.facultad/75.52/treemulator.git/blobdiff_plain/dba24fb6aa7fe829dc3e96039e7f717b0ef9668e..2c1d3ea3cf9a25e8f957587d4a1581fc292c831b:/src/btree.cpp diff --git a/src/btree.cpp b/src/btree.cpp index c7d3b4b..cf01b2c 100644 --- a/src/btree.cpp +++ b/src/btree.cpp @@ -50,28 +50,36 @@ void BTree::WriteBlock (uchar *block, uint num) void BTree::AddKey (const Clave &k) { - std::list node_keys; + AddKeyR (&k, 0); +} + +Clave* BTree::AddKeyR (const Clave *k, uint node_num) +{ + Clave *kout; + std::list node_keys; /* Leo el nodo raiz para empezar a agregar */ - uchar *root = ReadBlock (0); - BTreeNodeHeader root_header; - ReadNodoHeader (root, &root_header); + uchar *node = ReadBlock (node_num); + BTreeNodeHeader node_header; + ReadNodoHeader (node, &node_header); - node_keys = ReadKeys (root, root_header); - std::cout << node_keys.size () << std::endl; + node_keys = ReadKeys (node, node_header); - if (root_header.free_space >= k.Size ()) { - std::cout << "Hay lugar para meter la clave" << std::endl; + if (node_header.free_space >= k->Size ()) { + /* TODO : Insertar ordenado */ + //node_keys.push_back (BTreek->Clone ()); } else { - std::cout << "__NO__ hay lugar para meter la clave" << std::endl; + /* Split */ } - WriteKeys (root, root_header, node_keys); - WriteNodoHeader (root, &root_header); - WriteBlock (root, 0); + WriteKeys (node, node_header, node_keys); + WriteNodoHeader (node, &node_header); + WriteBlock (node, node_num); + + delete [] node; - delete [] root; + return kout; } void BTree::DelKey (const Clave &k) {} @@ -96,9 +104,9 @@ uchar *BTree::ReadBlock (uint num) return out; } -std::list BTree::ReadKeys (uchar *node, BTreeNodeHeader &node_header) +std::list BTree::ReadKeys (uchar *node, BTreeNodeHeader &node_header) { - std::list keys; + std::list keys; node += sizeof (BTreeNodeHeader); for (uint i=0; i BTree::ReadKeys (uchar *node, BTreeNodeHeader &node_header) * dependiendo de algun dato en el header del * arbol */ - ClaveFija *k = new ClaveFija (node); - node += k->Size (); - keys.push_back (k); + /* TODO : Detectar si estoy en una hoja */ + BTreeData data(node); + node += data.Size (); + keys.push_back (data); } return keys; } -void BTree::WriteKeys (uchar *node, BTreeNodeHeader &node_header, std::list &keys) +void BTree::WriteKeys (uchar *node, BTreeNodeHeader &node_header, std::list &keys) { - std::list::iterator it = keys.begin (); + std::list::iterator it = keys.begin (); node += sizeof (BTreeNodeHeader); while (it != keys.end ()) { - Clave *c = (*it); - memcpy (node, c->ToArray(), c->Size ()); - node += c->Size (); + BTreeData d = (*it); + memcpy (node, d.ToArray(), d.Size ()); + node += d.Size (); it++; }