Recuperacion de nodos eliminados.

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

diff --git a/src/main.cpp b/src/main.cpp
index 1eedc01920b41da513b7f3166e35514ec0b742c5..e4f0326247d6bca4a35cd7d90df7c599666bb024 100644 (file)
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2,61 +2,88 @@
 
 #include "btree.h"
 #include "clave_fija.h"
 
 #include "btree.h"
 #include "clave_fija.h"

-
-void generar_random (std::list<int> &lst, uint n);
+#include "random.h"
+#include "keymanager.h"

 
 int main  (int argc, char *argv[])
 {
 
 int main  (int argc, char *argv[])
 {

-       std::list<int> lst;
-
-       BTree tree ("test.idx", 64);
-       
-       if (argc != 2) {
-               printf ("Falta parametro cantidad de elementos a agregar\n");
+       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;
        }
 
                return 1;
        }
 

-       generar_random (lst, atoi(argv[1]));
+       int bloque = 128 << (atoi (argv[1]) + 2);
+       int altas = atoi (argv[2]);
+       int bajas = atoi (argv[3]);

 
 

-       std::list<int>::iterator it = lst.begin ();
-       while (it != lst.end ()) {
-               ClaveFija c(*it);
+       KeyManager<int> km;
+       BTree tree ("test.idx", bloque);
+       
+       std::list<int> lst;
+       std::list<int>::iterator it;
+       Random::Init ();
+       Random::Ints (lst, altas);

 
 

-               std::cout << "Agregando " << (*it) << std::endl;
-               tree.AddKey (c);
-               it++;
-       }
+       double paltas = bajas / (double)(altas + bajas);

 
        it = lst.begin ();
        while (it != lst.end ()) {
 
        it = lst.begin ();
        while (it != lst.end ()) {

-               ClaveFija c(*it);
+               ClaveFija c(*it, 0);

 
 

-               if (tree.FindKey (c))
-                       std::cout << (*it) << " encontrada\n";
-               else
-                       std::cout << (*it) << " NO encontrada\n";
-               it++;
+               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;
+                       }
+               }

        }
 
        }
 

-       return 0;
-}
+       km.PrintInfo ();

 
 

-void generar_random (std::list<int> &lst, uint n)
-{
-       /* Genero N numeros aleatorios entre -3*n y 3*n */
-       bool *numeros = new bool [6*n+1];
-       int random;
-
-       memset (numeros, 0, (6*n+1)*sizeof (bool));
-
-       srand (time (NULL));
-       for (uint i=0; i < n; i++) {
-               do {
-                       random = 1 + (int)(6.0f * n * rand () / (RAND_MAX + 1.0f) - 3.0f * n);
-                       std::cout << random << std::endl;
-               } while (numeros[random + 3 * n] == true);
-               numeros[random + 3 * n] = true;
-               lst.push_back (random);
+       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;

 }
 
 }