Dejando todo andando con BTreeData.

[z.facultad/75.52/treemulator.git] / src / btree.cpp

diff --git a/src/btree.cpp b/src/btree.cpp
index 21609bf6b48388b6f2308948f930e3488682fd49..cf01b2c6ea1cba869f63b7969568ec4734189146 100644 (file)
--- a/src/btree.cpp
+++ b/src/btree.cpp
@@ -50,30 +50,36 @@ void BTree::WriteBlock (uchar *block, uint num)
 
 void BTree::AddKey (const Clave &k)
 {
-       std::list<Clave *> node_keys;
+       AddKeyR (&k, 0);
+}
+
+Clave* BTree::AddKeyR (const Clave *k, uint node_num)
+{
+       Clave *kout;
+       std::list<BTreeData> 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 (k.Clone ());
+               //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) {}
@@ -98,9 +104,9 @@ uchar *BTree::ReadBlock (uint num)
        return out;
 }
 
-std::list<Clave *> BTree::ReadKeys (uchar *node, BTreeNodeHeader &node_header)
+std::list<BTreeData> BTree::ReadKeys (uchar *node, BTreeNodeHeader &node_header)
 {
-       std::list<Clave *> keys;
+       std::list<BTreeData> keys;
        node += sizeof (BTreeNodeHeader);
 
        for (uint i=0; i<node_header.item_count; i++) {
@@ -108,24 +114,25 @@ std::list<Clave *> 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<Clave *> &keys)
+void BTree::WriteKeys (uchar *node, BTreeNodeHeader &node_header, std::list<BTreeData> &keys)
 {
-       std::list<Clave *>::iterator it = keys.begin ();
+       std::list<BTreeData>::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++;
        }