X-Git-Url: https://git.llucax.com/z.facultad/75.52/treemulator.git/blobdiff_plain/7e2e46230bf3206edcc153df27092bb2ad82af07..2ab8041933e77875de62bc73e76febc528af258e:/src/btree.h?ds=inline

diff --git a/src/btree.h b/src/btree.h
index 540ac38..a67fa4c 100644
--- a/src/btree.h
+++ b/src/btree.h
@@ -46,8 +46,12 @@
 
 #include <iostream>
 #include <string>
+#include <list>
 #include "common.h"
 #include "clave.h"
+#include "clave_fija.h"
+#include "clave_variable.h"
+#include "btree_data.h"
 
 /* alias para codear menos :) */
 
@@ -83,29 +87,48 @@ struct BTreeNodeHeader {
  */
 class BTree {
 	public:
-		BTree (const char *filename, unsigned int block_size, bool create_new_file = false);
+		BTree (const std::string &filename, unsigned int block_size, int k_t = KEY_FIXED, bool create_new_file = false);
 		~BTree ();
 
-		void AddKey (Clave &k);
-		void DelKey (Clave &k);
+		/** Tipos de clave a usar */
+		enum {
+			KEY_FIXED,
+			KEY_VARIABLE
+		};
 
-	private:
-		void write_tree_header ();
-		void write_block (uchar *block, uint num);
+		void AddKey (const Clave &k);
+		void DelKey (const Clave &k);
 
+	protected:
+		Clave* AddKeyR (const Clave *k, uint node_num, uint &left_child, uint &right_child);
+		Clave* AddKeyOtherR (const Clave *k, uint node_num, uint &left_child, uint &right_child);
+		Clave* AddKeyLeafR (const Clave *k, uint node_num, uint &left_child, uint &right_child);
+
+		void WriteFileHeader ();
+
+		void WriteBlock (uchar *block, uint num);
 		uchar *ReadBlock (uint num);
+		uchar *NewBlock (uint &num);
 
 		void ReadNodoHeader (uchar *node, BTreeNodeHeader *header);
 		void WriteNodoHeader (uchar *node, BTreeNodeHeader *header);
 
+		std::list<BTreeData *> ReadKeys (uchar *node, BTreeNodeHeader &node_header);
+		void WriteKeys (uchar *node, BTreeNodeHeader &node_header, std::list<BTreeData *> &keys);
+
 		std::string filename;
 		BTreeFileHeader header;
+		int key_type;
 
 		/** Apunta al archivo de datos, asi se abre solo 1 vez
 		 *
 		 *  \TODO Ver si vale la pena
 		 */
 		FILE *fp;
+
+
+		/* DEBUG */
+		void PrintNode (uint num);
 };
 
 #endif // _B_TREE_H