Recuperacion de nodos eliminados.

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

diff --git a/src/main.cpp b/src/main.cpp
index c22dde916725dd97e9b4d4d0973387e1c9ee788d..e4f0326247d6bca4a35cd7d90df7c599666bb024 100644 (file)
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2,18 +2,88 @@
 
 #include "btree.h"
 #include "clave_fija.h"
+#include "random.h"
+#include "keymanager.h"
 
 int main  (int argc, char *argv[])
 {
-       BTree *tree;
-       ClaveFija c(5);
+       if (argc != 4) {
+               std::cout << "Uso: " << argv[0] << " <block size> <cantidad de altas> <cantidad de bajas>\n";
+               std::cout << "\tEl tamaño de bloque usado es 512*2^<block size>.\n";
+               return 1;
+       }
 
-       tree = new BTree ("test.idx", 1024);
+       int bloque = 128 << (atoi (argv[1]) + 2);
+       int altas = atoi (argv[2]);
+       int bajas = atoi (argv[3]);
 
-       tree->AddKey (c);
+       KeyManager<int> km;
+       BTree tree ("test.idx", bloque);
+       
+       std::list<int> lst;
+       std::list<int>::iterator it;
+       Random::Init ();
+       Random::Ints (lst, altas);
 
-       delete tree;
+       double paltas = bajas / (double)(altas + bajas);
 
-       return 0;
+       it = lst.begin ();
+       while (it != lst.end ()) {
+               ClaveFija c(*it, 0);
+
+               double l = Random::Double (0.0f, 1.0f);
+               std::cout << l << " >= " << paltas << std::endl;
+               if (!km.Size() // si no tenemos claves agregadas, mejor que hagamos un alta
+                               || l >= paltas) {
+                       try {
+                               tree.AddKey (c);
+                               km.AddValue (*it);
+                       } catch (Exception *e) {
+                               std::cout << e->Message () << std::endl;
+                       }
+                       it++;
+               } else {
+                       /* Tengo que borrar una clave entre 0 e "i" de la lista
+                        * porque son las que ya agregue. */
+                       ClaveFija c(km.GetRandom (), 0);
+
+                       try {
+                               tree.DelKey (c);
+                               std::string sss = c;
+                               std::cout << "Clave Borrada " << sss << std::endl;
+                       } catch (Exception *e) {
+                               std::cout << e->Message () << std::endl;
+                       }
+               }
+       }
+
+       km.PrintInfo ();
+
+       std::list <int> l = km.GetList ();
+       it = l.begin ();
+       int bien = 0;
+       int mal = 0;
+       while (it != l.end ()) {
+               ClaveFija c(*it, 0);
+               BTreeFindResult *r;
+
+               r = tree.FindKey (c);
+               if (r != NULL) {
+                       std::cout << "** Clave " << (*it) << " encontrada.\n";
+                       bien++;
+                       delete r;
+               } else {
+                       std::cout << "** Clave " << (*it) << " NO encontrada.\n";
+                       mal++;
+               }
+               it++;
+       }
+
+       std::cout << "\n\n === Resultados ===\n";
+       std::cout << "    Hist  : " << bien << "\n";
+       std::cout << "    Miss  : " << mal << "\n";
+       std::cout << "    Total : " << (bien+mal) << "\n";
+
+       return mal;
 }