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add the floyd algorithm for a routing schema
[simgrid.git] / src / surf / surf_routing.c
index 8ed16fc..38deaf6 100644 (file)
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route,surf,"Routing part of surf");
 
+
+// FIXME: the next two lines cant be comented without fix the code in network.c file.
 routing_t used_routing = NULL;
 xbt_dict_t onelink_routes = NULL;
+// 
+// /* Prototypes of each model */
+// static void routing_model_full_create(size_t size_of_link,void *loopback);
+// // static void routing_model_floyd_create(size_t size_of_link, void*loopback);
+// // static void routing_model_dijkstra_create(size_t size_of_link, void*loopback);
+// // static void routing_model_dijkstracache_create(size_t size_of_link, void*loopback);
+// //static void routing_model_none_create(size_t size_of_link, void*loopback);
+// 
+// /* Definition of each model */
+// struct model_type {
+//   const char *name;
+//   const char *desc;
+//   void (*fun)(size_t,void*);
+// };
+// 
+// struct model_type models[] =
+// { {"Full", "Full routing data (fast, large memory requirements, fully expressive)", routing_model_full_create },
+// //   {"Floyd", "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)", routing_model_floyd_create },
+// //   {"Dijkstra", "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)", routing_model_dijkstra_create },
+// //   {"DijkstraCache", "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)", routing_model_dijkstracache_create },
+// //  {"none", "No routing (usable with Constant network only)", routing_model_none_create },
+//     {NULL,NULL,NULL}};
+    
+////////////////////////////////////////////////////////////////////////////////
+// HERE START THE NEW CODE
+////////////////////////////////////////////////////////////////////////////////
+
+//...... DEBUG ONLY .... //
+static void print_tree(routing_component_t rc);
+static void print_global();
+static void print_AS_start(void);
+static void print_AS_end(void);
+static void print_host(void);
+static void print_link(void);
+static void print_route(void);
+static void print_ctn(void);
+static void DEGUB_exit(void);
+
+////////////////////////////////////////////////////////////////////////////////
+// HERE START THE NEW CODE
+////////////////////////////////////////////////////////////////////////////////
+
+/* Global vars */
+routing_global_t global_routing = NULL;
+routing_component_t current_routing = NULL;
+model_type_t current_routing_model = NULL;
 
 /* Prototypes of each model */
-static void routing_model_full_create(size_t size_of_link,void *loopback);
-static void routing_model_floyd_create(size_t size_of_link, void*loopback);
-static void routing_model_dijkstra_create(size_t size_of_link, void*loopback);
-static void routing_model_dijkstracache_create(size_t size_of_link, void*loopback);
-static void routing_model_none_create(size_t size_of_link, void*loopback);
-
-/* Definition of each model */
-struct model_type {
-  const char *name;
-  const char *desc;
-  void (*fun)(size_t,void*);
-};
-struct model_type models[] =
-{ {"Full", "Full routing data (fast, large memory requirements, fully expressive)", routing_model_full_create },
-  {"Floyd", "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)", routing_model_floyd_create },
-  {"Dijkstra", "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)", routing_model_dijkstra_create },
-  {"DijkstraCache", "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)", routing_model_dijkstracache_create },
-  {"none", "No routing (usable with Constant network only)", routing_model_none_create },
-    {NULL,NULL,NULL}};
+static void* model_full_create(); /* create structures for full routing model */
+static void  model_full_load();   /* load parse functions for full routing model */
+static void  model_full_unload(); /* unload parse functions for full routing model */
+static void  model_full_end();    /* finalize the creation of full routing model */
+
+static void* model_floyd_create(); /* create structures for floyd routing model */
+static void  model_floyd_load();   /* load parse functions for floyd routing model */
+static void  model_floyd_unload(); /* unload parse functions for floyd routing model */
+static void  model_floyd_end();    /* finalize the creation of floyd routing model */
+
+static void* model_dijkstra_create(); /* create structures for dijkstra routing model */
+static void  model_dijkstra_load();   /* load parse functions for dijkstra routing model */
+static void  model_dijkstra_unload(); /* unload parse functions for dijkstra routing model */
+static void  model_dijkstra_end();    /* finalize the creation of dijkstra routing model */
+
+static void* model_dijkstracache_create(); /* create structures for dijkstracache routing model */
+static void  model_dijkstracache_load();   /* load parse functions for dijkstracache routing model */
+static void  model_dijkstracache_unload(); /* unload parse functions for dijkstracache routing model */
+static void  model_dijkstracache_end();    /* finalize the creation of dijkstracache routing model */
+
+static void* model_none_create(); /* none routing model */
+static void  model_none_load();   /* none routing model */
+static void  model_none_unload(); /* none routing model */
+static void  model_none_end();    /* none routing model */
+
+/* Table of routing models */
+/* must be finish with null and carefull if change de order */
+
+#define SURF_MODEL_FULL          0
+#define SURF_MODEL_FLOYD         1
+#define SURF_MODEL_DIJKSTRA      2
+#define SURF_MODEL_DIJKSTRACACHE 3
+#define SURF_MODEL_NONE          4
+
+struct s_model_type routing_models[] =
+{ {"Full", "Full routing data (fast, large memory requirements, fully expressive)",
+  model_full_create, model_full_load, model_full_unload, model_full_end },  
+  {"Floyd", "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
+  model_floyd_create, model_floyd_load, model_floyd_unload, model_floyd_end },
+  {"Dijkstra", "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
+  model_dijkstra_create ,model_dijkstra_load, model_dijkstra_unload, model_dijkstra_end },
+  {"DijkstraCache", "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
+  model_dijkstracache_create, model_dijkstracache_load, model_dijkstracache_unload, model_dijkstracache_end },
+  {"none", "No routing (usable with Constant network only)",
+  model_none_create, model_none_load, model_none_unload, model_none_end },
+  {NULL,NULL,NULL,NULL,NULL,NULL}};
 
+  
+/* global parse functions */
 
-void routing_model_create(size_t size_of_links, void* loopback) {
+/**
+ * \brief Add a "host" to the network element list
+ *
+ * Allows find a "host" in any routing component
+ */
+static void  parse_S_host(void) {
+  xbt_assert1(!xbt_dict_get_or_null(global_routing->where_network_elements,A_surfxml_host_id),
+      "The host \"%s\" already exist",A_surfxml_host_id);
+  xbt_dict_set(global_routing->where_network_elements,A_surfxml_host_id,(void*)current_routing,NULL); 
+}
+
+/**
+ * \brief Add a "router" to the network element list
+ *
+ * Allows find a "router" in any routing component
+ */
+static void parse_S_router(void) {
+  xbt_assert1(!xbt_dict_get_or_null(global_routing->where_network_elements,A_surfxml_router_id),
+      "The router \"%s\" already exist",A_surfxml_router_id);
+  xbt_dict_set(global_routing->where_network_elements,A_surfxml_router_id,(void*)current_routing,NULL); 
+}
+
+/**
+ * \brief Add a "gateway" to the network element list
+ *
+ * Allows find a "gateway" in any routing component
+ */
+static void parse_S_gateway(void) {
+  xbt_assert1(!xbt_dict_get_or_null(global_routing->where_network_elements,A_surfxml_gateway_id),
+      "The gateway \"%s\" already exist",A_surfxml_gateway_id);
+  xbt_dict_set(global_routing->where_network_elements,A_surfxml_gateway_id,(void*)current_routing,NULL); 
+}
 
-  char * wanted=xbt_cfg_get_string(_surf_cfg_set,"routing");
+/**
+ * \brief Make a new routing component
+ *
+ * Detect the routing model type of the routing component, make the new structure and
+ * set the parsing functions to allows parsing the part of the routing tree
+ */
+static void parse_S_AS(void) { 
+  routing_component_t new_routing;
+  model_type_t model = NULL;
+  char* wanted = A_surfxml_AS_routing;
   int cpt;
-  for (cpt=0;models[cpt].name;cpt++) {
-    if (!strcmp(wanted,models[cpt].name)) {
-      (*(models[cpt].fun))(size_of_links,loopback);
-      return;
-    }
+  /* seach the routing model */
+  for (cpt=0;routing_models[cpt].name;cpt++)
+    if (!strcmp(wanted,routing_models[cpt].name))
+          model = &routing_models[cpt];
+  /* if its not exist, error */
+  if( model == NULL ) {
+    fprintf(stderr,"Routing model %s not found. Existing models:\n",wanted);
+    for (cpt=0;routing_models[cpt].name;cpt++)
+      if (!strcmp(wanted,routing_models[cpt].name))
+        fprintf(stderr,"   %s: %s\n",routing_models[cpt].name,routing_models[cpt].desc);
+    exit(1);
   }
-  fprintf(stderr,"Routing model %s not found. Existing models:\n",wanted);
-  for (cpt=0;models[cpt].name;cpt++)
-    if (!strcmp(wanted,models[cpt].name))
-      fprintf(stderr,"   %s: %s\n",models[cpt].name,models[cpt].desc);
-  exit(1);
+
+  /* make a new routing component */
+  new_routing = (routing_component_t)(*(model->create))();
+  new_routing->routing = model;
+  new_routing->name = xbt_strdup(A_surfxml_AS_id);
+  new_routing->routing_sons = xbt_dict_new();
+  INFO2("Routing %s for AS %s",A_surfxml_AS_routing,A_surfxml_AS_id);
+  
+  if( current_routing == NULL && global_routing->root == NULL )
+  { /* it is the first one */
+    new_routing->routing_father = NULL;
+    global_routing->root = new_routing;
+  }
+  else if( current_routing != NULL && global_routing->root != NULL )
+  {  /* it is a part of the tree */
+    new_routing->routing_father = current_routing;
+    xbt_assert1(!xbt_dict_get_or_null(current_routing->routing_sons,A_surfxml_AS_id),
+           "The AS \"%s\" already exist",A_surfxml_AS_id);
+    xbt_dict_set(current_routing->routing_sons,A_surfxml_AS_id,(void*)new_routing,NULL);
+    /* unload the prev parse rules */
+    (*(current_routing->routing->unload))();
+  }
+  else
+  {
+    THROW0(arg_error,0,"All defined components must be belong to a AS");
+  }
+  /* set the new parse rules */
+  (*(new_routing->routing->load))();
+  /* set the new current component of the tree */
+  current_routing = new_routing;
 }
 
-/* ************************************************************************** */
-/* *************************** FULL ROUTING ********************************* */
-typedef struct {
-  s_routing_t generic_routing;
-  xbt_dynar_t *routing_table;
-  void *loopback;
-  size_t size_of_link;
-} s_routing_full_t,*routing_full_t;
-
-#define ROUTE_FULL(i,j) ((routing_full_t)used_routing)->routing_table[(i)+(j)*(used_routing)->host_count]
-#define HOST2ROUTER(id) ((id)+(2<<29))
-#define ROUTER2HOST(id) ((id)-(2<<29))
-#define ISROUTER(id) ((id)>=(2<<29))
-
-/*
- * Free the onelink routes
+/**
+ * \brief Finish the creation of a new routing component
+ *
+ * When you finish to read the routing component, other structures must be created. 
+ * the "end" method allow to do that for any routing model type
  */
-static void onelink_route_elem_free(void *e) {
-  s_onelink_t tmp = (s_onelink_t)e;
-  if(tmp) {
-    free(tmp);
+static void parse_E_AS(void) {
+
+  if( current_routing == NULL ) {
+    THROW1(arg_error,0,"Close AS(%s), that never open",A_surfxml_AS_id);
+  } else {
+      (*(current_routing->routing->unload))();
+      (*(current_routing->routing->end))();
+      current_routing = current_routing->routing_father;
+      if( current_routing != NULL )
+        (*(current_routing->routing->load))();
   }
 }
 
-/*
- * Parsing
+/**
+ * \brief Recursive function for add the differents AS to global dict
+ *
+ * This fuction is call by "parse_E_platform_add_parse_AS". It allow to add the 
+ * AS or routing components, to the where_network_elements dictionary. In the same
+ * way as "parse_S_host", "parse_S_router" and "parse_S_gateway" do.
  */
-static void routing_full_parse_Shost(void) {
-  int *val = xbt_malloc(sizeof(int));
-  DEBUG2("Seen host %s (#%d)",A_surfxml_host_id,used_routing->host_count);
-  *val = used_routing->host_count++;
-  xbt_dict_set(used_routing->host_id,A_surfxml_host_id,val,xbt_free);
-#ifdef HAVE_TRACING
-  TRACE_surf_host_define_id (A_surfxml_host_id, *val);
-#endif
+static void _add_parse_AS(routing_component_t rc) {
+  xbt_assert1(!xbt_dict_get_or_null(global_routing->where_network_elements,rc->name),
+     "The AS \"%s\" already exist",rc->name);
+  xbt_dict_set(global_routing->where_network_elements,rc->name,rc->routing_father,NULL);
+  xbt_dict_cursor_t cursor = NULL;
+  char *key;
+  int *val;
+  routing_component_t elem;
+  xbt_dict_foreach(rc->routing_sons, cursor, key, elem) {
+    _add_parse_AS(elem);
+  } 
 }
 
-static void routing_full_parse_Srouter(void) {
-       int *val = xbt_malloc(sizeof(int));
-  DEBUG3("Seen router %s (%d -> #%d)",A_surfxml_router_id,used_routing->router_count,
-               HOST2ROUTER(used_routing->router_count));
-  *val = HOST2ROUTER(used_routing->router_count++);
-  xbt_dict_set(used_routing->host_id,A_surfxml_router_id,val,xbt_free);
-#ifdef HAVE_TRACING
-  TRACE_surf_host_define_id (A_surfxml_router_id, *val);
-  TRACE_surf_host_declaration (A_surfxml_router_id, 0);
-#endif
+/**
+ * \brief Add a "AS" to the network element list
+ *
+ * Allows find a "AS" in any routing component
+ */
+static void parse_E_platform_add_parse_AS(void) {
+  _add_parse_AS(global_routing->root);
 }
 
-static int src_id = -1;
-static int dst_id = -1;
-static void routing_full_parse_Sroute_set_endpoints(void)
-{
-  src_id = *(int*)xbt_dict_get(used_routing->host_id,A_surfxml_route_src);
-  dst_id = *(int*)xbt_dict_get(used_routing->host_id,A_surfxml_route_dst);
-  DEBUG4("Route %s %d -> %s %d",A_surfxml_route_src,src_id,A_surfxml_route_dst,dst_id);
-  route_action = A_surfxml_route_action;
+/* Global Business methods */
+
+/**
+ * \brief Generic method: find a route between hosts
+ *
+ * \param src the source host name 
+ * \param dst the destination host name
+ * 
+ * walk through the routing components tree and find a route between hosts
+ * by calling the differents "get_route" functions in each routing component
+ */
+static xbt_dynar_t get_route(const char* src,const char* dst) {
+  
+  routing_component_t src_as, dst_as;
+  int index_src, index_dst, index_father_src, index_father_dst;
+  int *src_id, *dst_id;
+  xbt_dynar_t path_src = NULL;
+  xbt_dynar_t path_dst = NULL;
+  char *current_router_src, *current_router_dst;
+  routing_component_t current = NULL;
+  routing_component_t* current_src_father;
+  routing_component_t* current_dst_father;
+  routing_component_t* current_src = NULL;
+  routing_component_t* current_dst = NULL;
+  routing_component_t* father;
+  route_extended_t tmp_route;
+  void* link;
+  route_extended_t route_center_links;
+  xbt_dynar_t path_src_links, path_dst_links, path_first, path_last;
+  int cpt;
+  
+  xbt_dynar_reset(global_routing->last_route);
+  
+// TODO: check if the route is between hosts  
+//   xbt_assert2( ( src_ne->type == SURF_NETWORK_ELEMENT_HOST || src_ne-> == SURF_NETWORK_ELEMENT_AS )
+//             && ( src_ne->type == SURF_NETWORK_ELEMENT_HOST || src_ne-> == SURF_NETWORK_ELEMENT_AS ) ,
+//     "Invalid network elements \"%s\" or \"%s\" for make a route", src, dst);
+    
+  /* (1) find the as-routetree where the src and dst are located */
+  src_as = xbt_dict_get_or_null(global_routing->where_network_elements,src);
+  dst_as = xbt_dict_get_or_null(global_routing->where_network_elements,dst); 
+  xbt_assert0(src_as != NULL && dst_as  != NULL, "Ask for route \"from\" or \"to\" no found");
+  
+  /* (2) find the path to the root routing componen */
+  path_src = xbt_dynar_new(sizeof(routing_component_t), NULL);
+  current = src_as; 
+  while( current != NULL ) {
+    xbt_dynar_push(path_src,&current);
+    current = current->routing_father;
+  }
+  path_dst = xbt_dynar_new(sizeof(routing_component_t), NULL);
+  current = dst_as; 
+  while( current != NULL ) {
+    xbt_dynar_push(path_dst,&current);
+    current = current->routing_father;
+  }
+  
+  /* (3) find the common father */
+  index_src  = (path_src->used)-1;
+  index_dst  = (path_dst->used)-1;
+  current_src = xbt_dynar_get_ptr(path_src,index_src);
+  current_dst = xbt_dynar_get_ptr(path_dst,index_dst);
+  while( index_src >= 0 && index_dst >= 0 && *current_src == *current_dst ) {
+    current_src = xbt_dynar_get_ptr(path_src,index_src);
+    current_dst = xbt_dynar_get_ptr(path_dst,index_dst);
+    index_src--;
+    index_dst--;
+  }
+  index_src++;
+  index_dst++;
+  current_src = xbt_dynar_get_ptr(path_src,index_src);
+  current_dst = xbt_dynar_get_ptr(path_dst,index_dst);
+  
+  /* (4) if they are in the same routing component? */
+  if( *current_src == *current_dst ) {
+  
+    /* (5.1) belong to the same routing component */
+    xbt_assert1((*current_src)->get_route, "Invalid \"get_route\" for \"%s\"",(*current_src)->name);
+    tmp_route = (*(*current_src)->get_route)(*current_src,src,dst);
+    xbt_assert3(tmp_route, "there is no route between \"%s\" and \"%s\" in \"%s\"",src,dst,(*current_src)->name);
+    cpt = 0;
+    xbt_dynar_foreach(tmp_route->generic_route.link_list, cpt, link) {
+      xbt_dynar_push(global_routing->last_route,&link);
+    }
+      
+  } else {
+  
+    /* (5.2) they are not in the same routetree, make the path */
+    index_father_src = index_src+1;
+    index_father_dst = index_dst+1;
+    father = xbt_dynar_get_ptr(path_src,index_father_src);
+    xbt_assert1((*father)->get_route, "Invalid \"get_route\" for \"%s\"",(*father)->name);
+    route_center_links = (*((*father)->get_route))(*father,(*current_src)->name,(*current_dst)->name);
+    xbt_assert3(route_center_links, "there is no route between \"%s\" and \"%s\" in \"%s\"",
+        (*current_src)->name,(*current_dst)->name,(*father)->name);
+    
+    /* (5.2.1) make the source path */
+    path_src_links = xbt_dynar_new(global_routing->size_of_link, NULL);
+    current_router_dst = route_center_links->src_gateway;  /* first router in the reverse path */
+    current_src_father = xbt_dynar_get_ptr(path_src,index_src);
+    index_src--;
+    for(index_src;index_src>=0;index_src--) {
+      current_src = xbt_dynar_get_ptr(path_src,index_src);
+      xbt_assert1((*current_src_father)->get_route, "Invalid \"get_route\" for \"%s\"",(*current_src_father)->name);
+      tmp_route = (*((*current_src_father)->get_route))(*current_src_father,(*current_src)->name,current_router_dst);
+      xbt_assert3(tmp_route, "there is no route between \"%s\" and \"%s\" in \"%s\"",
+          (*current_src)->name,(*current_dst)->name,(*current_src_father)->name);
+      cpt = 0;
+      xbt_dynar_foreach(tmp_route->generic_route.link_list, cpt, link) {
+        xbt_assert2(link,"NULL link in the route from src %s to dst %s (5.2.1)", src, dst);
+        xbt_dynar_push(path_src_links,&link);
+      }
+      current_router_dst = tmp_route->src_gateway;
+      current_src_father = current_src;
+    }
+    
+    /* (5.2.2) make the destination path */
+    path_dst_links = xbt_dynar_new(global_routing->size_of_link, NULL);
+    current_router_src = route_center_links->dst_gateway;  /* last router in the reverse path */
+    current_dst_father = xbt_dynar_get_ptr(path_dst,index_dst);
+    index_dst--;
+    for(index_dst;index_dst>=0;index_dst--) {
+      current_dst = xbt_dynar_get_ptr(path_dst,index_dst);
+      xbt_assert1((*current_dst_father)->get_route, "Invalid \"get_route\" for \"%s\"",(*current_dst_father)->name);
+      tmp_route = (*((*current_dst_father)->get_route))(*current_dst_father,current_router_src,(*current_dst)->name);
+      xbt_assert3(tmp_route, "there is no route between \"%s\" and \"%s\" in \"%s\"",
+          (*current_src)->name,(*current_dst)->name,(*current_dst_father)->name);
+      cpt = 0;
+      xbt_dynar_foreach(tmp_route->generic_route.link_list, cpt, link) {
+        xbt_assert2(link,"NULL link in the route from src %s to dst %s (5.2.1)", src, dst);
+        xbt_dynar_push(path_dst_links,&link);
+      }
+      current_router_src = tmp_route->dst_gateway;
+      current_dst_father = current_dst;
+    }
+    
+    /* (5.2.3) the first part of the route */
+    xbt_assert1((*current_src)->get_route, "Invalid \"get_route\" for \"%s\"",(*current_src)->name);
+    path_first = ((*((*current_src)->get_route))(*current_src,src,current_router_dst))->generic_route.link_list;
+    xbt_assert3(path_first, "there is no route between \"%s\" and \"%s\" in \"%s\"",
+        src,current_router_dst,(*current_src)->name);
+    
+    /* (5.2.4) the last part of the route */
+    xbt_assert1((*current_dst)->get_route, "Invalid \"get_route\" for \"%s\"",(*current_dst)->name);
+    path_last  = ((*((*current_dst)->get_route))(*current_dst,current_router_src,dst))->generic_route.link_list;
+    xbt_assert3(path_last, "there is no route between \"%s\" and \"%s\" in \"%s\"",
+        current_router_src,dst,(*current_dst)->name);
+    
+    /* (5.2.5) make all paths together */
+    // FIXME: the paths non respect the right order
+    
+    cpt = 0;
+    xbt_dynar_foreach(path_first, cpt, link) {
+      xbt_dynar_push(global_routing->last_route,&link);
+    }
+    cpt = 0;
+    xbt_dynar_foreach(path_src_links, cpt, link) {
+      xbt_dynar_push(global_routing->last_route,&link);
+    }
+    cpt = 0;
+    xbt_dynar_foreach(route_center_links->generic_route.link_list, cpt, link) {
+      xbt_dynar_push(global_routing->last_route,&link);
+    }
+    cpt = 0;
+    xbt_dynar_foreach(path_dst_links, cpt, link) {
+      xbt_dynar_push(global_routing->last_route,&link);
+    }
+    cpt = 0;
+    xbt_dynar_foreach(path_last, cpt, link) {
+      xbt_dynar_push(global_routing->last_route,&link);
+    }
+    
+    xbt_dynar_free(&path_src_links);
+    xbt_dynar_free(&path_dst_links);
+  }
+  
+  xbt_dynar_free(&path_src);
+  xbt_dynar_free(&path_dst); 
+         
+  if( xbt_dynar_length(global_routing->last_route)==0 )
+    return NULL;
+  else
+    return global_routing->last_route;
 }
-static void routing_full_parse_Eroute(void)
-{
-  char *name;
-  if (src_id != -1 && dst_id != -1) {
-    name = bprintf("%x#%x", src_id, dst_id);
-    manage_route(route_table, name, route_action, 0);
-    free(name);
+
+/**
+ * \brief Recursive function for finalize
+ *
+ * \param rc the source host name 
+ * 
+ * This fuction is call by "finalize". It allow to finalize the 
+ * AS or routing components. It delete all the structures.
+ */
+static void _finalize(routing_component_t rc) {
+  if(rc) {
+    xbt_dict_cursor_t cursor = NULL;
+    char *key;
+    routing_component_t elem;
+    xbt_dict_foreach(rc->routing_sons, cursor, key, elem) {
+      _finalize(elem);
+    }
+    xbt_dict_t tmp_sons = rc->routing_sons;
+    char* tmp_name = rc->name;
+    xbt_dict_free(&tmp_sons);
+    xbt_free(tmp_name);
+    (*(rc->finalize))(rc);
   }
 }
 
-/* Cluster tag functions */
+/**
+ * \brief Generic method: delete all the routing structures
+ * 
+ * walk through the routing components tree and delete the structures
+ * by calling the differents "finalize" functions in each routing component
+ */
+static void finalize(void) {
+  /* delete recursibly all the tree */  
+  _finalize(global_routing->root);
+  /* delete "where" dict */
+  xbt_dict_free(&(global_routing->where_network_elements));
+  /* delete last_route */
+  xbt_dynar_free(&(global_routing->last_route));
+  /* delete global routing structure */
+  xbt_free(global_routing);
+}
 
-static void routing_full_parse_change_cpu_data(const char *hostName,
-                                  const char *surfxml_host_power,
-                                  const char *surfxml_host_availability,
-                                  const char *surfxml_host_availability_file,
-                                  const char *surfxml_host_state_file)
-{
-  int AX_ptr = 0;
+/**
+ * \brief Generic method: create the global routing schema
+ * 
+ * Make a global routing structure and set all the parsing functions.
+ */
+void routing_model_create(size_t size_of_links, void* loopback) {
+  
+  /* config the uniq global routing */
+  global_routing = xbt_new0(s_routing_global_t,1);
+  global_routing->where_network_elements = xbt_dict_new();
+  global_routing->root = NULL;
+  global_routing->get_route = get_route;
+  global_routing->finalize = finalize;
+  global_routing->loopback = loopback;
+  global_routing->size_of_link = size_of_links;
+  global_routing->last_route = xbt_dynar_new(size_of_links, NULL);
+  
+  /* no current routing at moment */
+  current_routing = NULL;
+
+  /* parse generic elements */
+  surfxml_add_callback(STag_surfxml_host_cb_list, &parse_S_host);
+  surfxml_add_callback(STag_surfxml_router_cb_list, &parse_S_router);
+  surfxml_add_callback(STag_surfxml_gateway_cb_list, &parse_S_gateway);
+
+  /* parse generic elements */
+  surfxml_add_callback(STag_surfxml_AS_cb_list, &parse_S_AS);
+  surfxml_add_callback(ETag_surfxml_AS_cb_list, &parse_E_AS);
+
+  /* set all the as in the global where table (recursive fuction) */
+  surfxml_add_callback(ETag_surfxml_platform_cb_list, &parse_E_platform_add_parse_AS);
+  
+  /* DEBUG ONLY */  
+  surfxml_add_callback(ETag_surfxml_platform_cb_list, &DEGUB_exit);
 
-  SURFXML_BUFFER_SET(host_id, hostName);
-  SURFXML_BUFFER_SET(host_power, surfxml_host_power /*hostPower */ );
-  SURFXML_BUFFER_SET(host_availability, surfxml_host_availability);
-  SURFXML_BUFFER_SET(host_availability_file, surfxml_host_availability_file);
-  SURFXML_BUFFER_SET(host_state_file, surfxml_host_state_file);
 }
 
-static void routing_full_parse_change_link_data(const char *linkName,
-                                   const char *surfxml_link_bandwidth,
-                                   const char *surfxml_link_bandwidth_file,
-                                   const char *surfxml_link_latency,
-                                   const char *surfxml_link_latency_file,
-                                   const char *surfxml_link_state_file)
-{
-  int AX_ptr = 0;
-
-  SURFXML_BUFFER_SET(link_id, linkName);
-  SURFXML_BUFFER_SET(link_bandwidth, surfxml_link_bandwidth);
-  SURFXML_BUFFER_SET(link_bandwidth_file, surfxml_link_bandwidth_file);
-  SURFXML_BUFFER_SET(link_latency, surfxml_link_latency);
-  SURFXML_BUFFER_SET(link_latency_file, surfxml_link_latency_file);
-  SURFXML_BUFFER_SET(link_state_file, surfxml_link_state_file);
+/* ************************************************************************** */
+/* ***************** GENERIC PARSE FUNCTIONS (declarations) ***************** */
+
+static char* src = NULL;    /* temporary store the source name of a route */
+static char* dst = NULL;    /* temporary store the destination name of a route */
+static char* gw_src = NULL; /* temporary store the gateway source name of a route */
+static char* gw_dst = NULL; /* temporary store the gateway destination name of a route */
+static xbt_dynar_t link_list = NULL; /* temporary store of current list link of a route */ 
+
+static void generic_parse_S_route_new_and_endpoints(void);
+static void generic_E_link_c_ctn_new_elem(void);
+static void generic_parse_E_route_store_route(void);
+
+/* ************************************************************************** */
+/* *************************** FULL ROUTING ********************************* */
+
+#define TO_ROUTE_FULL(i,j,rc) ((routing_component_full_t)rc)->routing_table[(i)+(j)*xbt_dict_length(((routing_component_full_t)rc)->to_index)]
+
+/* Routing model structure */
+
+typedef struct {
+  s_routing_component_t generic_routing;
+  xbt_dict_t parse_routes; /* store data during the parse process */
+  xbt_dict_t to_index; /* char* -> network_element_t */
+  route_extended_t *routing_table;
+} s_routing_component_full_t,*routing_component_full_t;
+
+/* Parse routing model functions */
+
+static void full_parse_S_host(void) {
+  network_element_t ne = xbt_new0(s_network_element_t,1);
+  ne->id = xbt_dict_length(((routing_component_full_t)current_routing)->to_index);
+  ne->type = SURF_NETWORK_ELEMENT_HOST;
+  xbt_dict_set(((routing_component_full_t)current_routing)->to_index,A_surfxml_host_id,ne,xbt_free);
+}
+
+static void full_parse_S_gateway(void) {
+  network_element_t ne = xbt_new0(s_network_element_t,1);
+  ne->id = xbt_dict_length(((routing_component_full_t)current_routing)->to_index);
+  ne->type = SURF_NETWORK_ELEMENT_GATEWAY;
+  xbt_dict_set(((routing_component_full_t)current_routing)->to_index,A_surfxml_gateway_id,ne,xbt_free);
+}
+
+/* Business methods */
+
+static route_extended_t full_get_route(routing_component_t rc, const char* src,const char* dst) {
+  
+  xbt_assert1(src && dst, "Invalid params for \"get_route\" function at AS \"%s\"",rc->name);
+  
+  routing_component_full_t src_as, dst_as;
+  int src_id,dst_id;
+  network_element_t ne_src,ne_dst;
+  
+  // FIXME: here we can use the current_routing var.
+  src_as = xbt_dict_get_or_null(global_routing->where_network_elements,src);
+  dst_as = xbt_dict_get_or_null(global_routing->where_network_elements,dst);
+  
+  xbt_assert0(src_as != NULL && dst_as  != NULL, "Ask for route \"from\" or \"to\" no found");
+  xbt_assert0(src_as == dst_as, "The src and dst are in differents AS");
+  xbt_assert0((routing_component_full_t)rc == dst_as,
+     "The routing component of src and dst is not the same as the network elements belong");
+  
+  ne_src = (network_element_t) xbt_dict_get(src_as->to_index,src);
+  ne_dst = (network_element_t) xbt_dict_get(dst_as->to_index,dst);
+  
+  src_id = ne_src->id;
+  dst_id = ne_dst->id;
+  
+  xbt_assert0(ne_src != NULL && ne_dst  != NULL, "Ask for route \"from\" or \"to\" no found in the local table"); 
+  
+  if( xbt_dynar_length(TO_ROUTE_FULL(src_id,dst_id,src_as)->generic_route.link_list) > 0 )
+    return TO_ROUTE_FULL(src_id,dst_id,src_as);
+  else
+    return NULL;
 }
 
-static void routing_full_parse_Scluster(void)
+static xbt_dict_t full_get_network_elements(routing_component_t rc, e_surf_network_element_type_t req_type)
 {
-  static int AX_ptr = 0;
-
-  char *cluster_id = A_surfxml_cluster_id;
-  char *cluster_prefix = A_surfxml_cluster_prefix;
-  char *cluster_suffix = A_surfxml_cluster_suffix;
-  char *cluster_radical = A_surfxml_cluster_radical;
-  char *cluster_power = A_surfxml_cluster_power;
-  char *cluster_bw = A_surfxml_cluster_bw;
-  char *cluster_lat = A_surfxml_cluster_lat;
-  char *cluster_bb_bw = A_surfxml_cluster_bb_bw;
-  char *cluster_bb_lat = A_surfxml_cluster_bb_lat;
-  char *backbone_name;
-  unsigned int it1,it2;
-  char *name1,*name2;
-  xbt_dynar_t names = NULL;
-  surfxml_bufferstack_push(1);
-
-  /* Make set a set to parse the prefix/suffix/radical into a neat list of names */
-  DEBUG4("Make <set id='%s' prefix='%s' suffix='%s' radical='%s'>",
-      cluster_id,cluster_prefix,cluster_suffix,cluster_radical);
-  SURFXML_BUFFER_SET(set_id, cluster_id);
-  SURFXML_BUFFER_SET(set_prefix, cluster_prefix);
-  SURFXML_BUFFER_SET(set_suffix, cluster_suffix);
-  SURFXML_BUFFER_SET(set_radical, cluster_radical);
-
-  SURFXML_START_TAG(set);
-  SURFXML_END_TAG(set);
-
-  names = xbt_dict_get(set_list,cluster_id);
-
-  xbt_dynar_foreach(names,it1,name1) {
-    /* create the host */
-    routing_full_parse_change_cpu_data(name1, cluster_power, "1.0", "", "");
-    A_surfxml_host_state = A_surfxml_host_state_ON;
-
-    SURFXML_START_TAG(host);
-    SURFXML_END_TAG(host);
-
-    /* Here comes the link */
-    routing_full_parse_change_link_data(name1, cluster_bw, "", cluster_lat, "", "");
-    A_surfxml_link_state = A_surfxml_link_state_ON;
-    A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
-
-    SURFXML_START_TAG(link);
-    SURFXML_END_TAG(link);
+  routing_component_full_t routing = (routing_component_full_t)rc;
+  xbt_dict_t result = xbt_dict_new();
+  xbt_dict_cursor_t cursor = NULL;
+  char *key;
+  network_element_t ne;
+  // TODO: do the next (the AS_GATEWAY are definened in the AS in the this_AS)
+  if(req_type == SURF_NETWORK_ELEMENT_AS_GATEWAY ) {
+    xbt_assert0(0, "NOT IMPLEMENTED YET");
+  }
+  // TODO: do the next (the links are not defined for the routing)
+  if(req_type == SURF_NETWORK_ELEMENT_LINK ) {
+    xbt_assert0(0, "NOT IMPLEMENTED YET");
+  }
+  // TODO: do the next (the routers are not defined for this type of routing)
+  if(req_type == SURF_NETWORK_ELEMENT_ROUTER ) {
+    xbt_assert0(0, "NOT IMPLEMENTED YET");
+  }
+  
+  xbt_dict_foreach(routing->to_index, cursor, key, ne) {
+    if( req_type == SURF_NETWORK_ELEMENT_NULL || req_type == ne->type ) {
+      e_surf_network_element_type_t *new_type = xbt_new0(e_surf_network_element_type_t,1);
+      *new_type = ne->type;
+      xbt_dict_set(result,key,new_type,xbt_free);
+    }
   }
+  return result;
+}
 
-  /* Make backbone link */
-  backbone_name = bprintf("%s_bb", cluster_id);
-  routing_full_parse_change_link_data(backbone_name, cluster_bb_bw, "", cluster_bb_lat, "",
-                         "");
-  A_surfxml_link_state = A_surfxml_link_state_ON;
-  A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_FATPIPE;
-
-  SURFXML_START_TAG(link);
-  SURFXML_END_TAG(link);
-
-  /* And now the internal routes */
-  xbt_dynar_foreach(names,it1,name1) {
-    xbt_dynar_foreach(names,it2,name2) {
-      if (strcmp(name1,name2)) {
-        A_surfxml_route_action = A_surfxml_route_action_POSTPEND;
-        SURFXML_BUFFER_SET(route_src,name1);
-        SURFXML_BUFFER_SET(route_dst,name2);
-        SURFXML_START_TAG(route); {
-          /* FIXME: name1 link is added by error about 20 lines below, so don't add it here
-          SURFXML_BUFFER_SET(link_c_ctn_id, name1);
-          SURFXML_START_TAG(link_c_ctn);
-          SURFXML_END_TAG(link_c_ctn);
-           */
-          SURFXML_BUFFER_SET(link_c_ctn_id, backbone_name);
-          SURFXML_START_TAG(link_c_ctn);
-          SURFXML_END_TAG(link_c_ctn);
-
-          SURFXML_BUFFER_SET(link_c_ctn_id, name2);
-          SURFXML_START_TAG(link_c_ctn);
-          SURFXML_END_TAG(link_c_ctn);
-
-        } SURFXML_END_TAG(route);
+static void full_finalize(routing_component_t rc) {
+  routing_component_full_t routing = (routing_component_full_t)rc;
+  int i,j;
+  if (routing) {
+    int table_size = xbt_dict_length(routing->to_index);
+    /* Delete routing table */
+    for (i=0;i<table_size;i++) {
+      for (j=0;j<table_size;j++) {
+        route_extended_t e_route = TO_ROUTE_FULL(i,j,rc);
+        xbt_dynar_free(&(e_route->generic_route.link_list));
+        if(e_route->src_gateway) xbt_free(e_route->src_gateway);
+        if(e_route->dst_gateway) xbt_free(e_route->dst_gateway);
+        xbt_free(e_route);
       }
     }
+    xbt_free(routing->routing_table);
+    /* Delete index dict */
+    xbt_dict_free(&(routing->to_index));
+    /* Delete structure */
+    xbt_free(rc);
   }
+}
 
-  /* Make route multi with the outside world, i.e. cluster->$* */
-
-  /* FIXME
-   * This also adds an elements to the routes within the cluster,
-   * and I guess it's wrong, but since this element is commented out in the above
-   * code creating the internal routes, we're good.
-   * To fix it, I'd say that we need a way to understand "$*-${cluster_id}" as "whole world, but the guys in that cluster"
-   * But for that, we need to install a real expression parser for src/dst attributes
-   *
-   * FIXME
-   * This also adds a dumb element (the private link) in place of the loopback. Then, since
-   * the loopback is added only if no link to self already exist, this fails.
-   * That's really dumb.
-   *
-   * FIXME
-   * It seems to me that it does not add the backbone to the path to outside world...
-   */
-  SURFXML_BUFFER_SET(route_c_multi_src, cluster_id);
-  SURFXML_BUFFER_SET(route_c_multi_dst, "$*");
-  A_surfxml_route_c_multi_symmetric = A_surfxml_route_c_multi_symmetric_NO;
-  A_surfxml_route_c_multi_action = A_surfxml_route_c_multi_action_PREPEND;
-
-  SURFXML_START_TAG(route_c_multi);
-
-  SURFXML_BUFFER_SET(link_c_ctn_id, "$src");
-
-  SURFXML_START_TAG(link_c_ctn);
-  SURFXML_END_TAG(link_c_ctn);
-
-  SURFXML_END_TAG(route_c_multi);
-
-  free(backbone_name);
-
-  /* Restore buff */
-  surfxml_bufferstack_pop(1);
+/* Creation routing model functions */
+
+static void* model_full_create() {
+  routing_component_full_t new_component =  xbt_new0(s_routing_component_full_t,1);
+  new_component->generic_routing.get_route = full_get_route;
+  new_component->generic_routing.finalize = full_finalize;
+  new_component->generic_routing.get_network_elements = full_get_network_elements;
+  new_component->to_index = xbt_dict_new();
+  new_component->parse_routes = xbt_dict_new();
+  return new_component;
 }
 
+static void model_full_load() {
+  surfxml_add_callback(STag_surfxml_host_cb_list, &full_parse_S_host);
+  surfxml_add_callback(STag_surfxml_gateway_cb_list, &full_parse_S_gateway);
+  surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &generic_E_link_c_ctn_new_elem);
+  surfxml_add_callback(STag_surfxml_route_cb_list, &generic_parse_S_route_new_and_endpoints);
+  surfxml_add_callback(ETag_surfxml_route_cb_list, &generic_parse_E_route_store_route);
+}
 
-static void routing_full_parse_end(void) {
-  routing_full_t routing = (routing_full_t) used_routing;
-  int nb_link = 0;
-  unsigned int cpt = 0;
-  xbt_dict_cursor_t cursor = NULL;
-  char *key, *data, *end;
-  const char *sep = "#";
-  xbt_dynar_t links, keys;
-  char *link_name = NULL;
-  int i,j;
+static void model_full_unload() {
+  surfxml_del_callback(&STag_surfxml_host_cb_list, &full_parse_S_host);
+  surfxml_del_callback(&STag_surfxml_gateway_cb_list, &full_parse_S_gateway);
+  surfxml_del_callback(&ETag_surfxml_link_c_ctn_cb_list, &generic_E_link_c_ctn_new_elem);
+  surfxml_del_callback(&STag_surfxml_route_cb_list, &generic_parse_S_route_new_and_endpoints);
+  surfxml_del_callback(&ETag_surfxml_route_cb_list, &generic_parse_E_route_store_route);
+}
 
-  int host_count = routing->generic_routing.host_count;
+static void  model_full_end() {
 
+  char *key, *end, *link_name, *src_name, *dst_name,  *src_gw_name, *dst_gw_name;
+  const char* sep = "#";
+  network_element_t src_id, dst_id, src_gw_id, dst_gw_id, ne;
+  route_extended_t new_e_route;
+  int i, j, cpt;
+  routing_component_t component;
+  xbt_dynar_t links;
+  xbt_dict_cursor_t cursor = NULL;
+  xbt_dynar_t keys = NULL;
+  routing_component_t src_as;
+  routing_component_t dst_as;
+  routing_component_full_t routing = ((routing_component_full_t)current_routing);
+
+  /* Add the AS found to local components  */
+  xbt_dict_foreach(current_routing->routing_sons, cursor, key, component) {
+    ne = xbt_new0(s_network_element_t,1);
+    ne->id = xbt_dict_length(routing->to_index);
+    ne->type = SURF_NETWORK_ELEMENT_AS;
+    xbt_dict_set(routing->to_index,key,ne,xbt_free);
+  }
+  
+  int table_size = xbt_dict_length(routing->to_index);
+  
   /* Create the routing table */
-  routing->routing_table = xbt_new0(xbt_dynar_t, host_count * host_count);
-  for (i=0;i<host_count;i++)
-    for (j=0;j<host_count;j++)
-      ROUTE_FULL(i,j) = xbt_dynar_new(routing->size_of_link,NULL);
-
+  routing->routing_table = xbt_new0(route_extended_t, table_size * table_size);
+  for (i=0;i<table_size;i++) {
+    for (j=0;j<table_size;j++) {
+      new_e_route = xbt_new0(s_route_extended_t,1);
+      new_e_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
+      new_e_route->src_gateway = NULL;
+      new_e_route->dst_gateway = NULL;
+      TO_ROUTE_FULL(i,j,current_routing) = new_e_route;
+    }
+  }
+  
   /* Put the routes in position */
-  xbt_dict_foreach(route_table, cursor, key, data) {
-    nb_link = 0;
-    links = (xbt_dynar_t) data;
+  xbt_dict_foreach(routing->parse_routes, cursor, key, links) {
+    
     keys = xbt_str_split_str(key, sep);
 
-    src_id = strtol(xbt_dynar_get_as(keys, 0, char *), &end, 16);
-    dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 16);
-    xbt_dynar_free(&keys);
-
-    if(xbt_dynar_length(links) == 1){
-      s_onelink_t new_link = (s_onelink_t) xbt_malloc0(sizeof(s_onelink));
-      new_link->src_id = src_id;
-      new_link->dst_id = dst_id;
-      link_name = xbt_dynar_getfirst_as(links, char*);
-      new_link->link_ptr = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
-      DEBUG3("Adding onelink route from (#%d) to (#%d), link_name %s",src_id, dst_id, link_name);
-      xbt_dict_set(onelink_routes, link_name, (void *)new_link, onelink_route_elem_free);
-#ifdef HAVE_TRACING
-      TRACE_surf_link_save_endpoints (link_name, src_id, dst_id);
-#endif
+    src_name    = xbt_dynar_get_as(keys, 0, char*);
+    dst_name    = xbt_dynar_get_as(keys, 1, char*);
+    src_gw_name = xbt_dynar_get_as(keys, 2, char*);
+    dst_gw_name = xbt_dynar_get_as(keys, 3, char*);
+      
+    src_id = xbt_dict_get_or_null(routing->to_index, src_name);
+    dst_id = xbt_dict_get_or_null(routing->to_index, dst_name);
+    
+    if (src_id == NULL || dst_id == NULL )
+      THROW2(mismatch_error,0,"Network elements %s or %s not found", src_name, dst_name);
+    
+    if( strlen(src_gw_name) != 0 ) {
+      src_as = xbt_dict_get_or_null(global_routing->where_network_elements,src_gw_name);
+      if (src_as == NULL)
+        THROW1(mismatch_error,0,"Network elements %s not found", src_gw_name);
+    } else {
+      src_gw_name = NULL; // FIXME: maybe here put the same src_name.
     }
-
-    if(ISROUTER(src_id) || ISROUTER(dst_id)) {
-                               DEBUG2("There is route with a router here: (%d ,%d)",src_id,dst_id);
-                               /* Check there is only one link in the route and store the information */
-                               continue;
+    
+    if( strlen(dst_gw_name) != 0 ) {
+      dst_as = xbt_dict_get_or_null(global_routing->where_network_elements,dst_gw_name);
+      if (dst_as == NULL)
+        THROW1(mismatch_error,0,"Network elements %s not found", dst_gw_name);
+    } else {
+      dst_gw_name = NULL; // FIXME: maybe here put the same dst_name.
     }
-
-    DEBUG4("Handle %d %d (from %d hosts): %ld links",
-        src_id,dst_id,routing->generic_routing.host_count,xbt_dynar_length(links));
+    
+    TO_ROUTE_FULL(src_id->id,dst_id->id,current_routing)->src_gateway = xbt_strdup(src_gw_name);
+    TO_ROUTE_FULL(src_id->id,dst_id->id,current_routing)->dst_gateway = xbt_strdup(dst_gw_name);
+    
     xbt_dynar_foreach(links, cpt, link_name) {
       void* link = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
       if (link)
-        xbt_dynar_push(ROUTE_FULL(src_id,dst_id),&link);
+        xbt_dynar_push(TO_ROUTE_FULL(src_id->id,dst_id->id,current_routing)->generic_route.link_list,&link);
       else
         THROW1(mismatch_error,0,"Link %s not found", link_name);
     }
+
+   // xbt_dynar_free(&links);
+    xbt_dynar_free(&keys);
   }
+   /* delete the parse table */
+  xbt_dict_foreach(routing->parse_routes, cursor, key, links) {
+    xbt_dynar_free(&links);
+  }
+  /* delete parse dict */
+  xbt_dict_free(&(routing->parse_routes));
 
   /* Add the loopback if needed */
-  for (i = 0; i < host_count; i++)
-    if (!xbt_dynar_length(ROUTE_FULL(i, i)))
-      xbt_dynar_push(ROUTE_FULL(i,i),&routing->loopback);
+  for (i = 0; i < table_size; i++)
+    if (!xbt_dynar_length(TO_ROUTE_FULL(i, i,current_routing)->generic_route.link_list))
+      xbt_dynar_push(TO_ROUTE_FULL(i,i,current_routing)->generic_route.link_list,&global_routing->loopback);
 
   /* Shrink the dynar routes (save unused slots) */
-  for (i=0;i<host_count;i++)
-    for (j=0;j<host_count;j++)
-      xbt_dynar_shrink(ROUTE_FULL(i,j),0);
+  for (i=0;i<table_size;i++)
+    for (j=0;j<table_size;j++)
+      xbt_dynar_shrink(TO_ROUTE_FULL(i,j,current_routing)->generic_route.link_list,0);
 }
 
-/*
- * Business methods
- */
-static xbt_dynar_t routing_full_get_route(int src,int dst) {
-  xbt_assert0(!(ISROUTER(src) || ISROUTER(dst)), "Ask for route \"from\" or \"to\" a router node");
-  return ROUTE_FULL(src,dst);
-}
+/* ************************************************************************** */
+/* *************************** FLOYD ROUTING ******************************** */
 
-static xbt_dict_t routing_full_get_onelink_routes(void){
-  return onelink_routes;
-}
+#define TO_FLOYD_COST(i,j) cost_table[(i)+(j)*table_size]
+#define TO_FLOYD_PRED(i,j) (routing->predecessor_table)[(i)+(j)*table_size]
+#define TO_FLOYD_LINK(i,j) (routing->link_table)[(i)+(j)*table_size]
+#define TO_FLOYD_AS(i,j)   (routing->AS_table)[(i)+(j)*AS_table_size]
 
-static int routing_full_is_router(int id){
-       return ISROUTER(id);
-}
+/* Routing model structure */
 
-static void routing_full_finalize(void) {
-  routing_full_t routing = (routing_full_t)used_routing;
-  int i,j;
+typedef struct {
+  s_routing_component_t generic_routing;
+  route_extended_t last_route;
+  /* vars for calculate the floyd algorith. */
+  int *predecessor_table;
+  void** link_table; /* char* -> network_element_t* */
+  xbt_dict_t predecessor_to_index;
+  /* store information to solve any AS route */
+  xbt_dict_t AS_to_index; /* char* -> network_element_t* */
+  route_limits_t AS_table;
+  /* store data during the parse process */  
+  xbt_dict_t parse_routes; 
+  
+} s_routing_component_floyd_t,*routing_component_floyd_t;
 
-  if (routing) {
-    for (i = 0; i < used_routing->host_count; i++)
-      for (j = 0; j < used_routing->host_count; j++)
-        xbt_dynar_free(&ROUTE_FULL(i, j));
-    free(routing->routing_table);
-    xbt_dict_free(&used_routing->host_id);
-    xbt_dict_free(&onelink_routes);
-    free(routing);
-    routing=NULL;
-  }
-}
+/* Parse routing model functions */
 
-static void routing_model_full_create(size_t size_of_link,void *loopback) {
-  /* initialize our structure */
-  routing_full_t routing = xbt_new0(s_routing_full_t,1);
-  routing->generic_routing.name = "Full";
-  routing->generic_routing.host_count = 0;
-  routing->generic_routing.get_route = routing_full_get_route;
-  routing->generic_routing.get_onelink_routes = routing_full_get_onelink_routes;
-  routing->generic_routing.is_router = routing_full_is_router;
-  routing->generic_routing.finalize = routing_full_finalize;
-
-  routing->size_of_link = size_of_link;
-  routing->loopback = loopback;
-
-  /* Set it in position */
-  used_routing = (routing_t) routing;
-
-  /* Set the dict for onehop routes */
-  onelink_routes =  xbt_dict_new();
-
-  /* Setup the parsing callbacks we need */
-  routing->generic_routing.host_id = xbt_dict_new();
-  surfxml_add_callback(STag_surfxml_host_cb_list, &routing_full_parse_Shost);
-  surfxml_add_callback(STag_surfxml_router_cb_list, &routing_full_parse_Srouter);
-  surfxml_add_callback(ETag_surfxml_platform_cb_list, &routing_full_parse_end);
-  surfxml_add_callback(STag_surfxml_route_cb_list,
-      &routing_full_parse_Sroute_set_endpoints);
-  surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_full_parse_Eroute);
-  surfxml_add_callback(STag_surfxml_cluster_cb_list, &routing_full_parse_Scluster);
+static void floyd_parse_S_host(void) {
+  network_element_t ne = xbt_new0(s_network_element_t,1);
+  ne->id = xbt_dict_length(((routing_component_floyd_t)current_routing)->predecessor_to_index);
+  ne->type = SURF_NETWORK_ELEMENT_HOST;
+  xbt_dict_set(((routing_component_floyd_t)current_routing)->predecessor_to_index,A_surfxml_host_id,ne,xbt_free);
 }
 
-/* ************************************************************************** */
-
-static void routing_shortest_path_parse_Scluster(void)
-{
-  static int AX_ptr = 0;
-
-  char *cluster_id = A_surfxml_cluster_id;
-  char *cluster_prefix = A_surfxml_cluster_prefix;
-  char *cluster_suffix = A_surfxml_cluster_suffix;
-  char *cluster_radical = A_surfxml_cluster_radical;
-  char *cluster_power = A_surfxml_cluster_power;
-  char *cluster_bb_bw = A_surfxml_cluster_bb_bw;
-  char *cluster_bb_lat = A_surfxml_cluster_bb_lat;
-  char *backbone_name;
-
-  surfxml_bufferstack_push(1);
-
-  /* Make set */
-  SURFXML_BUFFER_SET(set_id, cluster_id);
-  SURFXML_BUFFER_SET(set_prefix, cluster_prefix);
-  SURFXML_BUFFER_SET(set_suffix, cluster_suffix);
-  SURFXML_BUFFER_SET(set_radical, cluster_radical);
-
-  SURFXML_START_TAG(set);
-  SURFXML_END_TAG(set);
+static void floyd_parse_S_gateway(void) {
+  network_element_t ne = xbt_new0(s_network_element_t,1);
+  ne->id = xbt_dict_length(((routing_component_floyd_t)current_routing)->predecessor_to_index);
+  ne->type = SURF_NETWORK_ELEMENT_GATEWAY;
+  xbt_dict_set(((routing_component_floyd_t)current_routing)->predecessor_to_index,A_surfxml_gateway_id,ne,xbt_free);
+}
 
-  /* Make foreach */
-  SURFXML_BUFFER_SET(foreach_set_id, cluster_id);
+static void floyd_parse_S_router(void) {
+  network_element_t ne = xbt_new0(s_network_element_t,1);
+  ne->id = xbt_dict_length(((routing_component_floyd_t)current_routing)->predecessor_to_index);
+  ne->type = SURF_NETWORK_ELEMENT_ROUTER;
+  xbt_dict_set(((routing_component_floyd_t)current_routing)->predecessor_to_index,A_surfxml_router_id,ne,xbt_free);
+}
 
-  SURFXML_START_TAG(foreach);
+/* Business methods */
 
-  /* Make host for the foreach */
-  routing_full_parse_change_cpu_data("$1", cluster_power, "1.0", "", "");
-  A_surfxml_host_state = A_surfxml_host_state_ON;
+static route_extended_t floyd_get_route(routing_component_t rc, const char* src,const char* dst) {
+  
+  xbt_assert1(src && dst, "Invalid params for \"get_route\" function at AS \"%s\"",rc->name);
+  
+  /* set utils vars */
+  routing_component_floyd_t routing = (routing_component_floyd_t) rc;
+  int table_size = xbt_dict_length(routing->predecessor_to_index);
+  int AS_table_size;
+  /* clear the last route */
+  xbt_dynar_reset(routing->last_route->generic_route.link_list);
+  if(routing->last_route->src_gateway) xbt_free(routing->last_route->src_gateway);
+  if(routing->last_route->dst_gateway) xbt_free(routing->last_route->dst_gateway);
+  routing->last_route->src_gateway = NULL; 
+  routing->last_route->dst_gateway = NULL;
+  
+  /* find the network elements for make a route */
+  network_element_t dst_ne = xbt_dict_get_or_null(routing->predecessor_to_index, dst);
+  network_element_t src_ne = xbt_dict_get_or_null(routing->predecessor_to_index, src);
+  network_element_t src_ne_AS, dst_ne_AS;
+  
+  /* if some network element is a AS, I need to find the adecuate gateway for the route */
+  if(!src_ne || !dst_ne ) {
+    xbt_assert1(routing->AS_to_index, "AS table not found (\"%s\")",rc->name);
+    AS_table_size = xbt_dict_length(routing->AS_to_index);
+    src_ne_AS = xbt_dict_get_or_null(routing->AS_to_index, src);
+    dst_ne_AS = xbt_dict_get_or_null(routing->AS_to_index, dst);
+    xbt_assert2(src_ne_AS && dst_ne_AS, "Attempt to make a route between a hosts element and a AS (\"%s\",\"%s\")",src,dst);
+    route_limits_t limits = &TO_FLOYD_AS(src_ne_AS->id,dst_ne_AS->id);
+    if(!src_ne) routing->last_route->src_gateway = xbt_strdup(limits->src_gateway);
+    if(!dst_ne) routing->last_route->dst_gateway = xbt_strdup(limits->dst_gateway);
+    dst_ne = xbt_dict_get_or_null(routing->predecessor_to_index, limits->dst_gateway);
+    src_ne = xbt_dict_get_or_null(routing->predecessor_to_index, limits->src_gateway);
+  }
 
-  SURFXML_START_TAG(host);
-  SURFXML_END_TAG(host);
+  xbt_assert2(src_ne != NULL || dst_ne != NULL,
+    "Invalid network elements \"%s\" or \"%s\" not found", src, dst);
+  
+  int src_id = src_ne->id;
+  int dst_id = dst_ne->id;
+    
+  int pred = dst_id;
+  int prev_pred = 0;
+  
+  do {
+    prev_pred = pred;
+    pred = TO_FLOYD_PRED(src_id, pred);
 
-  SURFXML_END_TAG(foreach);
+    if(pred == -1) // if no pred in route -> no route to host
+        break;
+    
+    xbt_assert2(TO_FLOYD_LINK(pred,prev_pred),"Invalid link for the route between \"%s\" or \"%s\"", src, dst);
+    
+    xbt_dynar_unshift(routing->last_route->generic_route.link_list, &(TO_FLOYD_LINK(pred,prev_pred)));
 
-  /* Make backbone link */
-  backbone_name = bprintf("%s_bb", cluster_id);
-  routing_full_parse_change_link_data(backbone_name, cluster_bb_bw, "", cluster_bb_lat, "",
-                         "");
-  A_surfxml_link_state = A_surfxml_link_state_ON;
-  A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_FATPIPE;
+  } while(pred != src_id);
 
-  SURFXML_START_TAG(link);
-  SURFXML_END_TAG(link);
+  xbt_assert4(pred != -1, "no route from host %d to %d (\"%s\" to \"%s\")", src_id, dst_id,src,dst);
+  
+  if( xbt_dynar_length(routing->last_route->generic_route.link_list) > 0 )
+    return routing->last_route;
+  else
+    return NULL;
+}
 
-  free(backbone_name);
+static xbt_dict_t floyd_get_network_elements(routing_component_t rc, e_surf_network_element_type_t req_type)
+{
+  routing_component_floyd_t routing = (routing_component_floyd_t)rc;
+  xbt_dict_t result = xbt_dict_new();
+  xbt_dict_cursor_t cursor = NULL;
+  char *key;
+  network_element_t ne;
+  // TODO: do the next (the AS_GATEWAY are definened in the AS in the this_AS)
+  if(req_type == SURF_NETWORK_ELEMENT_AS_GATEWAY ) {
+    xbt_assert0(0, "NOT IMPLEMENTED YET");
+  }
+  // TODO: do the next (the links are not defined for the routing)
+  if(req_type == SURF_NETWORK_ELEMENT_LINK ) {
+    xbt_assert0(0, "NOT IMPLEMENTED YET");
+  }
+  // TODO: do the next (the routers are defined into predecessor_to_index)
+  if(req_type == SURF_NETWORK_ELEMENT_ROUTER ) {
+    xbt_assert0(0, "NOT IMPLEMENTED YET");
+  }
+  
+  if( req_type == SURF_NETWORK_ELEMENT_NULL || req_type == SURF_NETWORK_ELEMENT_HOST ) {
+    xbt_dict_foreach(routing->predecessor_to_index, cursor, key, ne) {
+      if( ne->type == SURF_NETWORK_ELEMENT_HOST) {
+        e_surf_network_element_type_t *new_type = xbt_new0(e_surf_network_element_type_t,1);
+        *new_type = ne->type;
+        xbt_dict_set(result,key,new_type,xbt_free);
+      }
+    }
+  }
+  
+  if( req_type == SURF_NETWORK_ELEMENT_NULL || req_type == SURF_NETWORK_ELEMENT_AS || req_type == SURF_NETWORK_ELEMENT_GATEWAY ) {
+    xbt_dict_foreach(routing->predecessor_to_index, cursor, key, ne) {
+      if( req_type == SURF_NETWORK_ELEMENT_NULL || req_type == ne->type ) {
+        e_surf_network_element_type_t *new_type = xbt_new0(e_surf_network_element_type_t,1);
+        *new_type = ne->type;
+        xbt_dict_set(result,key,new_type,xbt_free);
+      }
+    }
+  }
+  return result;
+}
 
-  /* Restore buff */
-  surfxml_bufferstack_pop(1);
+static void floyd_finalize(routing_component_t rc) {
+  routing_component_floyd_t routing = (routing_component_floyd_t)rc;
+  int i,j,AS_table_size;
+  if (routing) {
+    /* Delete dictionary index dict, predecessor and links table */
+    xbt_free(routing->predecessor_table);
+    xbt_dict_free(&(routing->predecessor_to_index));
+    xbt_free(routing->link_table);
+    /* Delete dictionary index and limit table */
+    if(routing->AS_to_index) {
+      AS_table_size = xbt_dict_length(routing->AS_to_index);
+      xbt_dict_free(&(routing->AS_to_index));
+    }
+    if(routing->AS_table) {
+      for(i=0;i<AS_table_size;i++) {
+        for(j=0;j<AS_table_size;j++) {
+          if(TO_FLOYD_AS(i,j).src_gateway) xbt_free(TO_FLOYD_AS(i,j).src_gateway);
+          if(TO_FLOYD_AS(i,j).dst_gateway) xbt_free(TO_FLOYD_AS(i,j).dst_gateway);
+        }
+      }
+    }
+    xbt_free(routing->AS_table);
+    /* Delete index dynar for last routes */
+    if(routing->last_route->src_gateway) xbt_free(routing->last_route->src_gateway);
+    if(routing->last_route->dst_gateway) xbt_free(routing->last_route->dst_gateway);
+    xbt_dynar_free(&(routing->last_route->generic_route.link_list));
+    xbt_free(routing->last_route);
+    /* Delete structure */
+    xbt_free(rc);
+  }
 }
 
-/* ************************************************************************** */
-/* *************************** FLOYD ROUTING ********************************* */
-typedef struct {
-  s_routing_t generic_routing;
-  int *predecessor_table;
-  void** link_table;
-  xbt_dynar_t last_route;
-  void *loopback;
-  size_t size_of_link;
-} s_routing_floyd_t,*routing_floyd_t;
+/* Creation routing model functions */
+
+static void* model_floyd_create() {
+  routing_component_floyd_t new_component = xbt_new0(s_routing_component_floyd_t,1);
+  /* global vars */
+  new_component->generic_routing.get_route = floyd_get_route;
+  new_component->generic_routing.finalize = floyd_finalize;
+  new_component->generic_routing.get_network_elements = floyd_get_network_elements;
+  /* local vars */
+  new_component->last_route = xbt_new(s_route_extended_t,1);
+  new_component->last_route->src_gateway = NULL;
+  new_component->last_route->dst_gateway = NULL;
+  new_component->last_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
+  new_component->predecessor_to_index = xbt_dict_new();
+  new_component->AS_to_index = NULL;
+  new_component->AS_table = NULL;
+  new_component->parse_routes = xbt_dict_new();
+  return new_component;
+}
 
-#define FLOYD_COST(i,j) cost_table[(i)+(j)*(used_routing)->host_count]
-#define FLOYD_PRED(i,j) ((routing_floyd_t)used_routing)->predecessor_table[(i)+(j)*(used_routing)->host_count]
-#define FLOYD_LINK(i,j) ((routing_floyd_t)used_routing)->link_table[(i)+(j)*(used_routing)->host_count]
+static void  model_floyd_load() {
+  surfxml_add_callback(STag_surfxml_host_cb_list, &floyd_parse_S_host);
+  surfxml_add_callback(STag_surfxml_gateway_cb_list, &floyd_parse_S_gateway);
+  surfxml_add_callback(STag_surfxml_router_cb_list, &floyd_parse_S_router);
+  surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &generic_E_link_c_ctn_new_elem);
+  surfxml_add_callback(STag_surfxml_route_cb_list, &generic_parse_S_route_new_and_endpoints);
+  surfxml_add_callback(ETag_surfxml_route_cb_list, &generic_parse_E_route_store_route);
+}
 
-static void routing_floyd_parse_end(void) {
+static void  model_floyd_unload() {
+  surfxml_del_callback(&STag_surfxml_host_cb_list, &floyd_parse_S_host);
+  surfxml_del_callback(&STag_surfxml_gateway_cb_list, &floyd_parse_S_gateway);
+  surfxml_del_callback(&STag_surfxml_router_cb_list, &floyd_parse_S_router);
+  surfxml_del_callback(&ETag_surfxml_link_c_ctn_cb_list, &generic_E_link_c_ctn_new_elem);
+  surfxml_del_callback(&STag_surfxml_route_cb_list, &generic_parse_S_route_new_and_endpoints);
+  surfxml_del_callback(&ETag_surfxml_route_cb_list, &generic_parse_E_route_store_route);
+}
 
-  routing_floyd_t routing = (routing_floyd_t) used_routing;
-  int nb_link = 0;
-  void* link_list = NULL;
-  double * cost_table;
-  xbt_dict_cursor_t cursor = NULL;
-  char *key,*data, *end;
+static void  model_floyd_end() {
+  
+  routing_component_floyd_t routing = ((routing_component_floyd_t)current_routing);
   const char *sep = "#";
-  xbt_dynar_t links, keys;
-
+  char *key, *key_gw, *end, *link_name, *keyX, *keyY; 
+  char *src_name, *dst_name, *src_gw_name, *dst_gw_name;
+  double * cost_table;
   unsigned int i,j;
   unsigned int a,b,c;
-  int host_count = routing->generic_routing.host_count;
-  char * link_name = NULL;
-  void * link = NULL;
-
-  /* Create Cost, Predecessor and Link tables */
-  cost_table = xbt_new0(double, host_count * host_count); //link cost from host to host
-  routing->predecessor_table = xbt_new0(int, host_count*host_count); //predecessor host numbers
-  routing->link_table = xbt_new0(void*,host_count*host_count); //actual link between src and dst
-  routing->last_route = xbt_dynar_new(routing->size_of_link, NULL);
-
-  /* Initialize costs and predecessors*/
-  for(i = 0; i<host_count;i++)
-    for(j = 0; j<host_count;j++) {
-        FLOYD_COST(i,j) = DBL_MAX;
-        FLOYD_PRED(i,j) = -1;
+  int host_count=0, AS_count=0;
+  void *data = NULL;
+  void *link = NULL;
+  e_surf_network_element_type_t *type_gw;
+  network_element_t ne, ne_gw, new_ne, src_ne, dst_ne, src_gw_ne, dst_gw_ne, neX, neY;
+  xbt_dict_cursor_t cursor=NULL, cursor_gw=NULL, cursorX=NULL, cursorY=NULL;
+  xbt_dynar_t links, keys;
+  routing_component_t component;
+  
+  /* (0) Check for if there are any host in the a AS */
+  xbt_dict_foreach(routing->predecessor_to_index, cursor, key, ne) { 
+    if(ne->type == SURF_NETWORK_ELEMENT_HOST ) host_count++;
+  }
+  AS_count = xbt_dict_length(current_routing->routing_sons);
+  
+  xbt_assert2( (host_count>0 && AS_count==0) || (host_count==0 && AS_count>0),
+       "Invalid count of network elements, %d AS and %d host found",AS_count,host_count);
+
+  /* Add the AS gateways to network elements dictionary  */
+  xbt_dict_foreach(current_routing->routing_sons, cursor, key, component) {
+    xbt_assert1(component->get_network_elements,
+      "Invalid \"get_network_elements\" for \"%s\"",key);         
+    xbt_dict_t gateways = (*(component->get_network_elements))(component,SURF_NETWORK_ELEMENT_GATEWAY);
+    xbt_dict_foreach(gateways, cursor_gw, key_gw, type_gw) {
+      new_ne = xbt_new0(s_network_element_t,1);
+      new_ne->id = xbt_dict_length(routing->predecessor_to_index);
+      new_ne->type = SURF_NETWORK_ELEMENT_AS_GATEWAY;
+      xbt_dict_set(routing->predecessor_to_index,key_gw,new_ne,xbt_free);
+    }
+    xbt_dict_free(&gateways);
+  }
+
+  /* (1) first process: calculate the routing table using the floyd algorithm */
+
+  /* set the size of inicial table */
+   int table_size = xbt_dict_length(routing->predecessor_to_index);
+   
+   /* Create Cost, Predecessor and Link tables */
+   cost_table = xbt_new0(double, table_size*table_size);              // link cost from host to host
+   routing->predecessor_table = xbt_new0(int, table_size*table_size); // predecessor host numbers
+   routing->link_table = xbt_new0(void*,table_size*table_size);       // actual link between src and dst
+
+  /* Initialize costs and predecessors */
+  for(i=0;i<table_size;i++)
+    for(j=0;j<table_size;j++) {
+        TO_FLOYD_COST(i,j) = DBL_MAX;
+        TO_FLOYD_PRED(i,j) = -1;
+        TO_FLOYD_LINK(i,j) = NULL; // TODO: FIXED DAVID
     }
 
    /* Put the routes in position */
-  xbt_dict_foreach(route_table, cursor, key, data) {
-    nb_link = 0;
+  xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
+
     links = (xbt_dynar_t)data;
     keys = xbt_str_split_str(key, sep);
 
+    src_name    = xbt_dynar_get_as(keys, 0, char*);
+    dst_name    = xbt_dynar_get_as(keys, 1, char*);
+    src_gw_name = xbt_dynar_get_as(keys, 2, char*);
+    dst_gw_name = xbt_dynar_get_as(keys, 3, char*);
     
-    src_id = strtol(xbt_dynar_get_as(keys, 0, char*), &end, 16);
-    dst_id = strtol(xbt_dynar_get_as(keys, 1, char*), &end, 16);
-    xbt_dynar_free(&keys);
+    src_ne    = xbt_dict_get_or_null(routing->predecessor_to_index, src_name);
+    dst_ne    = xbt_dict_get_or_null(routing->predecessor_to_index, dst_name);
+    src_gw_ne = xbt_dict_get_or_null(routing->predecessor_to_index, src_gw_name);
+    dst_gw_ne = xbt_dict_get_or_null(routing->predecessor_to_index, dst_gw_name);
+    
+    xbt_assert2(src_ne != NULL || src_gw_ne != NULL,
+       "Invalid source, network elements\"%s\" with gateway \"%s\" not found", src_name, src_gw_name);
+    xbt_assert2(dst_ne != NULL || dst_gw_ne != NULL,
+       "Invalid source, network elements\"%s\" with gateway \"%s\" not found", dst_name, dst_gw_name);
  
-    DEBUG4("Handle %d %d (from %d hosts): %ld links",
-        src_id,dst_id,routing->generic_routing.host_count,xbt_dynar_length(links));
-    xbt_assert3(xbt_dynar_length(links) == 1, "%ld links in route between host %d and %d, should be 1", xbt_dynar_length(links), src_id, dst_id);
+    //DEBUG4("Handle %d %d (from %d hosts): %ld links",src_id,dst_id,routing->generic_routing.host_count,xbt_dynar_length(links));
+    xbt_assert3(xbt_dynar_length(links) == 1, "%ld links in route between host \"%s\" and \"%s\", should be 1", xbt_dynar_length(links), src_name, dst_name);
     
     link_name = xbt_dynar_getfirst_as(links, char*);
     link = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
-
+    
+    if( src_ne == NULL ) src_ne = src_gw_ne;
+    if( dst_ne == NULL ) dst_ne = dst_gw_ne;
+    
     if (link)
       link_list = link;
     else
       THROW1(mismatch_error,0,"Link %s not found", link_name);
     
-
-    FLOYD_LINK(src_id,dst_id) = link_list;
-    FLOYD_PRED(src_id, dst_id) = src_id;
+    TO_FLOYD_LINK(src_ne->id,dst_ne->id) = link_list;
+    TO_FLOYD_PRED(src_ne->id,dst_ne->id) = src_ne->id;
 
     //link cost
-    FLOYD_COST(src_id, dst_id) = 1; // assume 1 for now
-
+    TO_FLOYD_COST(src_ne->id,dst_ne->id) = 1; // assume 1 for now
+    
+    xbt_dynar_free(&keys);
   }
 
-    /* Add the loopback if needed */
-  for (i = 0; i < host_count; i++)
-    if (!FLOYD_PRED(i, i)) {
-      FLOYD_PRED(i, i) = i;
-      FLOYD_COST(i, i) = 1;
-      FLOYD_LINK(i, i) = routing->loopback;
+  /* Add the loopback if needed */
+  for (i = 0; i < table_size; i++)
+    if (TO_FLOYD_PRED(i,i) == -1) { // TODO: FIXED DAVID
+      TO_FLOYD_PRED(i,i) = i;
+      TO_FLOYD_COST(i,i) = 1;
+      TO_FLOYD_LINK(i,i) = global_routing->loopback;
     }
 
-
-  //Calculate path costs 
-
-  for(c=0;c<host_count;c++) {
-    for(a=0;a<host_count;a++) {
-      for(b=0;b<host_count;b++) {
-        if(FLOYD_COST(a,c) < DBL_MAX && FLOYD_COST(c,b) < DBL_MAX) {
-          if(FLOYD_COST(a,b) == DBL_MAX || (FLOYD_COST(a,c)+FLOYD_COST(c,b) < FLOYD_COST(a,b))) {
-            FLOYD_COST(a,b) = FLOYD_COST(a,c)+FLOYD_COST(c,b);
-            FLOYD_PRED(a,b) = FLOYD_PRED(c,b);
+  /* Calculate path costs */
+  for(c=0;c<table_size;c++) {
+    for(a=0;a<table_size;a++) {
+      for(b=0;b<table_size;b++) {
+        if(TO_FLOYD_COST(a,c) < DBL_MAX && TO_FLOYD_COST(c,b) < DBL_MAX) {
+          if(TO_FLOYD_COST(a,b) == DBL_MAX || 
+            (TO_FLOYD_COST(a,c)+TO_FLOYD_COST(c,b) < TO_FLOYD_COST(a,b))) {
+            TO_FLOYD_COST(a,b) = TO_FLOYD_COST(a,c)+TO_FLOYD_COST(c,b);
+            TO_FLOYD_PRED(a,b) = TO_FLOYD_PRED(c,b);
           }
         }
       }
     }
   }
+  
+  /* (2) second process: if there are any AS, make a routing table for AS limits */
 
-  //cleanup
-  free(cost_table);
-}
-
-/*
- * Business methods
- */
-static xbt_dynar_t routing_floyd_get_route(int src_id,int dst_id) {
-
-  routing_floyd_t routing = (routing_floyd_t) used_routing;
-
-  int pred = dst_id;
-  int prev_pred = 0;
-
-  xbt_dynar_reset(routing->last_route);
-
-  do {
-    prev_pred = pred;
-    pred = FLOYD_PRED(src_id, pred);
-
-    if(pred == -1) // if no pred in route -> no route to host
-        break;
-
-    xbt_dynar_unshift(routing->last_route, &FLOYD_LINK(pred,prev_pred));
+  if( xbt_dict_length(current_routing->routing_sons) > 0 ) {
 
-  } while(pred != src_id);
+    /* store index for the routing table */
+    routing->AS_to_index = xbt_dict_new();
 
-  xbt_assert2(pred != -1, "no route from host %d to %d", src_id, dst_id);
+    /* Add all local AS into AS_to_index  */
+    xbt_dict_foreach(current_routing->routing_sons, cursor, key, component) {
+      ne = xbt_new0(s_network_element_t,1);
+      ne->id = xbt_dict_length(routing->AS_to_index);
+      ne->type = SURF_NETWORK_ELEMENT_AS;
+      xbt_dict_set(routing->AS_to_index,key,ne,xbt_free);
+    }
+    
+    /* Add all local gateways into AS_to_index */
+    xbt_dict_foreach(routing->predecessor_to_index, cursor, key, ne) { 
+      if( ne->type == SURF_NETWORK_ELEMENT_GATEWAY ) {
+        new_ne = xbt_new0(s_network_element_t,1);
+        new_ne->id = xbt_dict_length(routing->AS_to_index);
+        new_ne->type = SURF_NETWORK_ELEMENT_GATEWAY;
+        xbt_dict_set(routing->AS_to_index,key,new_ne,xbt_free);
+      }
+    }
 
-  return routing->last_route;
-}
+    /* size of the limits table for AS */
+    int AS_table_size = xbt_dict_length(routing->AS_to_index);
+  
+    /* Create the limits table for AS */
+    routing->AS_table = xbt_new0(s_route_limits_t, AS_table_size * AS_table_size);
+    for (i=0;i<AS_table_size;i++) {
+      for (j=0;j<AS_table_size;j++) {
+        TO_FLOYD_AS(i,j).src_gateway = NULL;
+        TO_FLOYD_AS(i,j).dst_gateway = NULL;
+      }
+    }
 
-static void routing_floyd_finalize(void) {
-  routing_floyd_t routing = (routing_floyd_t)used_routing;
+    /* (3) third process: find the best gateways for each AS */
+
+    // select two AS or gateways
+    xbt_dict_foreach(routing->AS_to_index, cursorX, keyX, neX) {
+      xbt_dict_foreach(routing->AS_to_index, cursorY, keyY, neY) {
+
+        if( neX != neY ) { // if the network elements are differents
+
+            if( ( neX->type==SURF_NETWORK_ELEMENT_HOST || neX->type==SURF_NETWORK_ELEMENT_GATEWAY ) &&
+                ( neY->type==SURF_NETWORK_ELEMENT_HOST || neY->type==SURF_NETWORK_ELEMENT_GATEWAY ) ) {
+            /* route between hosts or gateways : do not any thing */
+            } else if( (neX->type==SURF_NETWORK_ELEMENT_AS && neY->type==SURF_NETWORK_ELEMENT_AS) ||
+                       (neX->type==SURF_NETWORK_ELEMENT_AS && neY->type==SURF_NETWORK_ELEMENT_GATEWAY) ||
+                       (neX->type==SURF_NETWORK_ELEMENT_GATEWAY && neY->type==SURF_NETWORK_ELEMENT_AS) ) {
+            /* route between AS */
+            /* or route between AS and gateway */
+            /* or route between gateway adn AS */
+        
+            routing_component_t rcX, rcY;
+            xbt_dict_t list_ASgatewayX, list_ASgatewayY;
+
+            if( neX->type==SURF_NETWORK_ELEMENT_AS ) {
+              rcX = xbt_dict_get_or_null(current_routing->routing_sons,keyX);
+              xbt_assert1(rcX && rcX->get_network_elements,
+                  "Invalid \"get_network_elements\" for \"%s\"",keyX);     
+              list_ASgatewayX = (*(rcX->get_network_elements))(rcX,SURF_NETWORK_ELEMENT_GATEWAY);
+            } else {
+              list_ASgatewayX = xbt_dict_new();
+              e_surf_network_element_type_t *new_type = xbt_new0(e_surf_network_element_type_t,1);
+             *new_type = SURF_NETWORK_ELEMENT_GATEWAY;
+              xbt_dict_set(list_ASgatewayX,keyX,new_type,xbt_free); 
+            }
+            
+            if( neY->type==SURF_NETWORK_ELEMENT_AS ) {
+              rcY = xbt_dict_get_or_null(current_routing->routing_sons,keyY);
+              xbt_assert1(rcY && rcY->get_network_elements,
+                  "Invalid \"get_network_elements\" for \"%s\"",keyY);
+              list_ASgatewayY = (*(rcY->get_network_elements))(rcY,SURF_NETWORK_ELEMENT_GATEWAY);
+            } else {
+              list_ASgatewayY = xbt_dict_new();
+              e_surf_network_element_type_t *new_type = xbt_new0(e_surf_network_element_type_t,1);
+             *new_type = SURF_NETWORK_ELEMENT_GATEWAY;
+              xbt_dict_set(list_ASgatewayY,keyY,new_type,xbt_free); 
+            }
+
+            xbt_dict_cursor_t cursorASgatewayX=NULL, cursorASgatewayY=NULL;
+            char * keyASgatewayX, *keyASgatewayY;
+            e_surf_network_element_type_t *typeASgatewayX, *typeASgatewayY;
+
+            char* best_ASgatewayX = NULL;
+            char* best_ASgatewayY = NULL;
+            double best_cost = DBL_MAX;
+
+            // test for all combinations fo Gateways between the AS
+            xbt_dict_foreach(list_ASgatewayX, cursorASgatewayX, keyASgatewayX, typeASgatewayX) {
+              xbt_dict_foreach(list_ASgatewayY, cursorASgatewayY, keyASgatewayY, typeASgatewayY) {
+                //printf(".....%s....%s....\n",keyASgatewayX,keyASgatewayY);
+                network_element_t src_ne = xbt_dict_get_or_null(routing->predecessor_to_index, keyASgatewayX);
+                network_element_t dst_ne = xbt_dict_get_or_null(routing->predecessor_to_index, keyASgatewayY);
+                double new_cost = TO_FLOYD_COST(src_ne->id,dst_ne->id);
+                if( best_cost > new_cost ) {
+                  if(best_ASgatewayX) xbt_free(best_ASgatewayX);
+                  if(best_ASgatewayY) xbt_free(best_ASgatewayY);
+                  best_cost = new_cost;
+                  best_ASgatewayX = xbt_strdup(keyASgatewayX);
+                  best_ASgatewayY = xbt_strdup(keyASgatewayY);
+                }
+              }
+            }
+            // store the best combination of gateways into the table
+            xbt_assert2(best_ASgatewayX && best_ASgatewayY,
+                  "Can not found a combination of gateways for a route between \"%s\" and \"%s\"",keyX,keyY);
+            network_element_t src_ne = xbt_dict_get_or_null(routing->AS_to_index, keyX);
+            network_element_t dst_ne = xbt_dict_get_or_null(routing->AS_to_index, keyY);
+            xbt_assert0(src_ne && dst_ne, "Invalid gateways for a make a route");
+            TO_FLOYD_AS(src_ne->id,dst_ne->id).src_gateway = best_ASgatewayX;
+            TO_FLOYD_AS(src_ne->id,dst_ne->id).dst_gateway = best_ASgatewayY;
+
+            /* free the list of gateways */
+            xbt_dict_free(&list_ASgatewayX);
+            xbt_dict_free(&list_ASgatewayY);
+
+            } else {
+              xbt_assert0(0, "Invalid network element type");
+            }
+        } // close big if
+      } // close Y foreach
+    } // close X foreach
+    
+  } // close if for second process
 
-  if (routing) {
-    free(routing->link_table);
-    free(routing->predecessor_table);
-    xbt_dynar_free(&routing->last_route);
-    xbt_dict_free(&used_routing->host_id);
-    free(routing);
-    routing=NULL;
+   /* delete the parse table */
+  xbt_dict_foreach(routing->parse_routes, cursor, key, links) {
+    xbt_dynar_free(&links);
   }
-}
-
-static xbt_dict_t routing_floyd_get_onelink_routes(void){
-  xbt_assert0(0,"The get_onelink_routes feature is not supported in routing model Floyd");
-}
-
-static int routing_floyd_is_router(int id){
-  xbt_assert0(0,"The get_is_router feature is not supported in routing model Floyd");
-}
-
-static void routing_model_floyd_create(size_t size_of_link,void *loopback) {
-  /* initialize our structure */
-  routing_floyd_t routing = xbt_new0(s_routing_floyd_t,1);
-  routing->generic_routing.name = "Floyd";
-  routing->generic_routing.host_count = 0;
-  routing->generic_routing.host_id = xbt_dict_new();
-  routing->generic_routing.get_route = routing_floyd_get_route;
-  routing->generic_routing.get_onelink_routes = routing_floyd_get_onelink_routes;
-  routing->generic_routing.is_router = routing_floyd_is_router;
-  routing->generic_routing.finalize = routing_floyd_finalize;
-  routing->size_of_link = size_of_link;
-  routing->loopback = loopback;
-
-  /* Set it in position */
-  used_routing = (routing_t) routing;
   
-  /* Setup the parsing callbacks we need */
-  surfxml_add_callback(STag_surfxml_host_cb_list, &routing_full_parse_Shost);
-  surfxml_add_callback(ETag_surfxml_platform_cb_list, &routing_floyd_parse_end);
-  surfxml_add_callback(STag_surfxml_route_cb_list, 
-      &routing_full_parse_Sroute_set_endpoints);
-  surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_full_parse_Eroute);
-  surfxml_add_callback(STag_surfxml_cluster_cb_list, &routing_shortest_path_parse_Scluster);
+  /* delete all the parsing temporary data */
+  xbt_dict_free(&(routing->parse_routes));
   
+  /* cleanup */
+   free(cost_table);
 }
 
 /* ************************************************************************** */
 /* ********** Dijkstra & Dijkstra Cached ROUTING **************************** */
+
 typedef struct {
-  s_routing_t generic_routing;
+  s_routing_component_t generic_routing;
   xbt_graph_t route_graph;
   xbt_dict_t graph_node_map;
   xbt_dict_t route_cache;
   xbt_dynar_t last_route;
   int cached;
-  void *loopback;
-  size_t size_of_link;
-} s_routing_dijkstra_t,*routing_dijkstra_t;
-
-
-typedef struct graph_node_data {
-  int id; 
-  int graph_id; //used for caching internal graph id's
-} s_graph_node_data_t, * graph_node_data_t;
+} s_routing_component_dijkstra_t,*routing_component_dijkstra_t;
 
-typedef struct graph_node_map_element {
-  xbt_node_t node;
-} s_graph_node_map_element_t, * graph_node_map_element_t;
+/* Parse routing model functions */
 
-typedef struct route_cache_element {
-  int * pred_arr;
-  int size;
-} s_route_cache_element_t, * route_cache_element_t;    
+/* Business methods */
 
-/*
- * Free functions
- */
-static void route_cache_elem_free(void *e) {
-  route_cache_element_t elm=(route_cache_element_t)e;
+/* Creation routing model functions */
 
-  if (elm) {
-    free(elm->pred_arr);
-    free(elm);
-  }
+static void* model_dijkstra_create() {
 }
 
-static void graph_node_map_elem_free(void *e) {
-  graph_node_map_element_t elm = (graph_node_map_element_t)e;
-
-  if(elm) {
-    free(elm);
-  }
+static void  model_dijkstra_load() {
 }
 
-/*
- * Utility functions
-*/
-static xbt_node_t route_graph_new_node(int id, int graph_id) {
-  xbt_node_t node = NULL;
-  graph_node_data_t data = NULL;
-  graph_node_map_element_t elm = NULL;
-  routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
-
-  data = xbt_new0(struct graph_node_data, sizeof(struct graph_node_data));
-  data->id = id;
-  data->graph_id = graph_id;
-  node = xbt_graph_new_node(routing->route_graph, data);
-
-  elm = xbt_new0(struct graph_node_map_element, sizeof(struct graph_node_map_element));
-  elm->node = node;
-  xbt_dict_set_ext(routing->graph_node_map, (char*)(&id), sizeof(int), (xbt_set_elm_t)elm, &graph_node_map_elem_free);
-
-  return node;
+static void  model_dijkstra_unload() {
 }
 
-static graph_node_map_element_t graph_node_map_search(int id) {
-  routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
-
-  graph_node_map_element_t elm = (graph_node_map_element_t)xbt_dict_get_or_null_ext(routing->graph_node_map, (char*)(&id), sizeof(int));
-
-  return elm;
+static void  model_dijkstra_end() {
 }
 
-/*
- * Parsing
- */
-static void route_new_dijkstra(int src_id, int dst_id, void* link) {
-  routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
-
-  xbt_node_t src = NULL;
-  xbt_node_t dst = NULL;
-  graph_node_map_element_t src_elm = (graph_node_map_element_t)xbt_dict_get_or_null_ext(routing->graph_node_map, (char*)(&src_id), sizeof(int));
-  graph_node_map_element_t dst_elm = (graph_node_map_element_t)xbt_dict_get_or_null_ext(routing->graph_node_map, (char*)(&dst_id), sizeof(int));
-
-  if(src_elm)
-    src = src_elm->node;
-
-  if(dst_elm)
-    dst = dst_elm->node;
-
-  //add nodes if they don't exist in the graph
-  if(src_id == dst_id && src == NULL && dst == NULL) {
-    src = route_graph_new_node(src_id, -1);
-    dst = src;
-  } else {
-    if(src == NULL) {
-      src = route_graph_new_node(src_id, -1);
-    }
-       
-    if(dst == NULL) {
-      dst = route_graph_new_node(dst_id, -1);
-    }
-  }
-
-  //add link as edge to graph
-  xbt_graph_new_edge(routing->route_graph, src, dst, link);
-  
+static void* model_dijkstracache_create() {
 }
 
-static void add_loopback_dijkstra(void) {
-  routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
-
-       xbt_dynar_t nodes = xbt_graph_get_nodes(routing->route_graph);
-       
-       xbt_node_t node = NULL;
-       unsigned int cursor2;
-       xbt_dynar_foreach(nodes, cursor2, node) {
-               xbt_dynar_t out_edges = xbt_graph_node_get_outedges(node); 
-               xbt_edge_t edge = NULL;
-               unsigned int cursor;
-       
-               int found = 0;
-               xbt_dynar_foreach(out_edges, cursor, edge) {
-                       xbt_node_t other_node = xbt_graph_edge_get_target(edge);
-                       if(other_node == node) {
-                               found = 1;
-                               break;
-                       }
-               }
-
-               if(!found)
-                       xbt_graph_new_edge(routing->route_graph, node, node, &routing->loopback);
-       }
+static void  model_dijkstracache_load() {
 }
 
-static void routing_dijkstra_parse_end(void) {
-  routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
-  int nb_link = 0;
-  xbt_dict_cursor_t cursor = NULL;
-  char *key, *data, *end;
-  const char *sep = "#";
-  xbt_dynar_t links, keys;
-  char* link_name = NULL;
-  void* link = NULL;
-  xbt_node_t node = NULL;
-  unsigned int cursor2;
-  xbt_dynar_t nodes = NULL;
-  /* Create the topology graph */
-  routing->route_graph = xbt_graph_new_graph(1, NULL);
-  routing->graph_node_map = xbt_dict_new();
-  routing->last_route = xbt_dynar_new(routing->size_of_link, NULL);
-  if(routing->cached)
-    routing->route_cache = xbt_dict_new();
-
-
-  /* Put the routes in position */
-  xbt_dict_foreach(route_table, cursor, key, data) {
-    nb_link = 0;
-    links = (xbt_dynar_t) data;
-    keys = xbt_str_split_str(key, sep);
-
-    src_id = strtol(xbt_dynar_get_as(keys, 0, char *), &end, 16);
-    dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 16);
-    xbt_dynar_free(&keys);
-
-    DEBUG4("Handle %d %d (from %d hosts): %ld links",
-        src_id,dst_id,routing->generic_routing.host_count,xbt_dynar_length(links));
-
-    xbt_assert3(xbt_dynar_length(links) == 1, "%ld links in route between host %d and %d, should be 1", xbt_dynar_length(links), src_id, dst_id);
-
-    link_name = xbt_dynar_getfirst_as(links, char*);
-    link = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
-    if (link)
-      route_new_dijkstra(src_id,dst_id,link);
-    else
-      THROW1(mismatch_error,0,"Link %s not found", link_name);
-    
-  }
-
-  /* Add the loopback if needed */
-  add_loopback_dijkstra();
-
-  /* initialize graph indexes in nodes after graph has been built */
-  nodes = xbt_graph_get_nodes(routing->route_graph);
-
-  xbt_dynar_foreach(nodes, cursor2, node) {
-    graph_node_data_t data = xbt_graph_node_get_data(node);
-    data->graph_id = cursor2;
-  }
-
+static void  model_dijkstracache_unload() {
 }
 
-/*
- * Business methods
- */
-static xbt_dynar_t routing_dijkstra_get_route(int src_id,int dst_id) {
-
-  routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
-  int * pred_arr = NULL;
-  int src_node_id = 0;
-  int dst_node_id = 0;
-  int * nodeid = NULL;
-  int v;
-  int size = 0;
-  void * link = NULL;
-  route_cache_element_t elm = NULL;
-  xbt_dynar_t nodes = xbt_graph_get_nodes(routing->route_graph);
-
-  /*Use the graph_node id mapping set to quickly find the nodes */
-  graph_node_map_element_t src_elm = graph_node_map_search(src_id);
-  graph_node_map_element_t dst_elm = graph_node_map_search(dst_id);
-  xbt_assert2(src_elm != NULL && dst_elm != NULL, "src %d or dst %d does not exist", src_id, dst_id);
-  src_node_id = ((graph_node_data_t)xbt_graph_node_get_data(src_elm->node))->graph_id;
-  dst_node_id = ((graph_node_data_t)xbt_graph_node_get_data(dst_elm->node))->graph_id;
-
-  if(routing->cached) {
-    /*check if there is a cached predecessor list avail */
-    elm = (route_cache_element_t)xbt_dict_get_or_null_ext(routing->route_cache, (char*)(&src_id), sizeof(int));
-  }
-
-  if(elm) { //cached mode and cache hit
-    pred_arr = elm->pred_arr;
-  } else { //not cached mode or cache miss
-    double * cost_arr = NULL;
-    xbt_heap_t pqueue = NULL;
-    int i = 0;
-
-    int nr_nodes = xbt_dynar_length(nodes);
-    cost_arr = xbt_new0(double, nr_nodes); //link cost from src to other hosts
-    pred_arr = xbt_new0(int, nr_nodes); //predecessors in path from src
-    pqueue = xbt_heap_new(nr_nodes, free);
-
-    //initialize
-    cost_arr[src_node_id] = 0.0;
-
-    for(i = 0; i < nr_nodes; i++) {
-      if(i != src_node_id) {
-        cost_arr[i] = DBL_MAX;
-      }
-
-      pred_arr[i] = 0;
-
-      //initialize priority queue
-      nodeid = xbt_new0(int, 1);
-      *nodeid = i;
-      xbt_heap_push(pqueue, nodeid, cost_arr[i]);
+static void  model_dijkstracache_end() {
+}
 
-    }
 
-    // apply dijkstra using the indexes from the graph's node array
-    while(xbt_heap_size(pqueue) > 0) {
-      int * v_id = xbt_heap_pop(pqueue);
-      xbt_node_t v_node = xbt_dynar_get_as(nodes, *v_id, xbt_node_t);
-      xbt_dynar_t out_edges = xbt_graph_node_get_outedges(v_node); 
-      xbt_edge_t edge = NULL;
-      unsigned int cursor;
-
-      xbt_dynar_foreach(out_edges, cursor, edge) {
-        xbt_node_t u_node = xbt_graph_edge_get_target(edge);
-        graph_node_data_t data = xbt_graph_node_get_data(u_node);
-        int u_id = data->graph_id;
-        int cost_v_u = 1; //fixed link cost for now
-
-        if(cost_v_u + cost_arr[*v_id] < cost_arr[u_id]) {
-          pred_arr[u_id] = *v_id;
-          cost_arr[u_id] = cost_v_u + cost_arr[*v_id];
-          nodeid = xbt_new0(int, 1);
-          *nodeid = u_id;
-          xbt_heap_push(pqueue, nodeid, cost_arr[u_id]);
-        }
-      }
+/* ************************************************************************** */
+/* ******************************* NO ROUTING ******************************* */
 
-      //free item popped from pqueue
-      free(v_id);
-    }
+/* Routing model structure */
+typedef struct {
+  s_routing_component_t generic_routing;
+} s_routing_component_none_t,*routing_component_none_t;
 
-    free(cost_arr);
-    xbt_heap_free(pqueue);
+/* Business methods */
+static route_extended_t none_get_route(routing_component_t rc, const char* src,const char* dst){
+  return NULL;
+}
+static void none_finalize(routing_component_t rc) {
+  xbt_free(rc);
+}
 
-  }
+/* Creation routing model functions */
+static void* model_none_create() {
+  routing_component_none_t new_component =  xbt_new0(s_routing_component_none_t,1);
+  new_component->generic_routing.get_route = none_get_route;
+  new_component->generic_routing.finalize = none_finalize;
+  return new_component;
+}
 
-  //compose route path with links
-  xbt_dynar_reset(routing->last_route);
+static void  model_none_load() {}
+static void  model_none_unload() {}
+static void  model_none_end() {}
 
-  for(v = dst_node_id; v != src_node_id; v = pred_arr[v]) {
-    xbt_node_t node_pred_v = xbt_dynar_get_as(nodes, pred_arr[v], xbt_node_t);
-    xbt_node_t node_v = xbt_dynar_get_as(nodes, v, xbt_node_t);
-    xbt_edge_t edge = xbt_graph_get_edge(routing->route_graph, node_pred_v, node_v);
+/* ************************************************** */
+/* ********** PATERN FOR NEW ROUTING **************** */
 
-    xbt_assert2(edge != NULL, "no route between host %d and %d", src_id, dst_id);
+/* The minimal configuration of a new routing model need the next functions,
+ * also you need to set at the start of the file, the new model in the model
+ * list. Remember keep the null ending of the list.
 
-    link = xbt_graph_edge_get_data(edge);
-    xbt_dynar_unshift(routing->last_route, &link);
-    size++;
-  }
+/* Routing model structure */
+typedef struct {
+  s_routing_component_t generic_routing;
+  /* things that your routing model need */
+} s_routing_component_NEW_t,*routing_component_NEW_t;
 
+/* Parse routing model functions */
+static void NEW_parse_S_host(void) {} /* example*/
 
-  if(routing->cached && elm == NULL) {
-    //add to predecessor list of the current src-host to cache
-    elm = xbt_new0(struct route_cache_element, sizeof(struct route_cache_element));
-    elm->pred_arr = pred_arr;
-    elm->size = size;
-    xbt_dict_set_ext(routing->route_cache, (char*)(&src_id), sizeof(int), (xbt_set_elm_t)elm, &route_cache_elem_free);
-  }
+/* Business methods */
+static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {} /* mandatory */
+static void NEW_finalize(routing_component_t rc) {} /* mandatory */
 
-  if(!routing->cached)
-    free(pred_arr);
+/* Creation routing model functions */
+static void* model_NEW_create() {} /* mandatory */
+static void  model_NEW_load() {}   /* mandatory */
+static void  model_NEW_unload() {} /* mandatory */
+static void  model_NEW_end() {}    /* mandatory */
 
-  return routing->last_route;
+/* ************************************************************************** */
+/* ************************* GENERIC PARSE FUNCTIONS ************************ */ 
+
+static void generic_parse_S_route_new_and_endpoints(void) {
+  if( src != NULL && dst != NULL && link_list != NULL )
+    THROW2(arg_error,0,"Route between %s to %s can not be defined",A_surfxml_route_src,A_surfxml_route_dst);
+  src = A_surfxml_route_src;
+  dst = A_surfxml_route_dst;
+  gw_src = A_surfxml_route_gw_src;
+  gw_dst = A_surfxml_route_gw_dst;
+  link_list = xbt_dynar_new(sizeof(char*), &xbt_free_ref);
 }
 
-
-static void routing_dijkstra_finalize(void) {
-  routing_dijkstra_t routing = (routing_dijkstra_t)used_routing;
-
-  if (routing) {
-    xbt_graph_free_graph(routing->route_graph, &free, NULL, &free);
-    xbt_dict_free(&routing->graph_node_map);
-    if(routing->cached)
-      xbt_dict_free(&routing->route_cache);
-    xbt_dynar_free(&routing->last_route);
-    xbt_dict_free(&used_routing->host_id);
-    free(routing);
-    routing=NULL;
-  }
+static void generic_E_link_c_ctn_new_elem(void) {
+  char *val;
+  val = xbt_strdup(A_surfxml_link_c_ctn_id);
+  xbt_dynar_push(link_list, &val);
 }
 
-static xbt_dict_t routing_dijkstraboth_get_onelink_routes(void){
-  xbt_assert0(0,"The get_onelink_routes feature is not supported in routing model dijkstraboth");
+static void generic_parse_E_route_store_route(void) {
+  char *route_name;
+  xbt_dict_t parse_routes;
+  if( current_routing->routing == &(routing_models[SURF_MODEL_FULL]) )
+      parse_routes = ((routing_component_full_t)current_routing)->parse_routes;
+  else if( current_routing->routing == &(routing_models[SURF_MODEL_FLOYD]) )
+      parse_routes = ((routing_component_floyd_t)current_routing)->parse_routes; 
+  else
+      xbt_assert0(0, "Invalid model for call \"generic_parse_E_route_store_route\"");
+  route_name = bprintf("%s#%s#%s#%s",src,dst,gw_src,gw_dst);
+  xbt_assert2(xbt_dynar_length(link_list)>0, "Invalid count of links, must be greater than zero (%s,%s)",src,dst);   
+  xbt_assert3(!xbt_dict_get_or_null(parse_routes,route_name),
+    "The route between \"%s\" and \"%s\" already exist (\"%s\")",src,dst,route_name);
+  xbt_dict_set(parse_routes, route_name, link_list, NULL);
+  free(route_name);
+  src = NULL;
+  dst = NULL;
+  link_list = NULL;
 }
 
-static int routing_dijkstraboth_is_router(int id){
-  xbt_assert0(0,"The get_is_router feature is not supported in routing model dijkstraboth");
-}
 
-/*
- *
- */
-static void routing_model_dijkstraboth_create(size_t size_of_link,void *loopback, int cached) {
-  /* initialize our structure */
-  routing_dijkstra_t routing = xbt_new0(s_routing_dijkstra_t,1);
-  routing->generic_routing.name = "Dijkstra";
-  routing->generic_routing.host_count = 0;
-  routing->generic_routing.get_route = routing_dijkstra_get_route;
-  routing->generic_routing.get_onelink_routes = routing_dijkstraboth_get_onelink_routes;
-  routing->generic_routing.is_router = routing_dijkstraboth_is_router;
-  routing->generic_routing.finalize = routing_dijkstra_finalize;
-  routing->size_of_link = size_of_link;
-  routing->loopback = loopback;
-  routing->cached = cached;
-
-  /* Set it in position */
-  used_routing = (routing_t) routing;
-
-  /* Setup the parsing callbacks we need */
-  routing->generic_routing.host_id = xbt_dict_new();
-  surfxml_add_callback(STag_surfxml_host_cb_list, &routing_full_parse_Shost);
-  surfxml_add_callback(ETag_surfxml_platform_cb_list, &routing_dijkstra_parse_end);
-  surfxml_add_callback(STag_surfxml_route_cb_list,
-      &routing_full_parse_Sroute_set_endpoints);
-  surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_full_parse_Eroute);
-  surfxml_add_callback(STag_surfxml_cluster_cb_list, &routing_shortest_path_parse_Scluster);
-}
+////////////////////////////////////////////////////////////////////////////////
+// HERE FINISH THE NEW CODE
+////////////////////////////////////////////////////////////////////////////////
 
-static void routing_model_dijkstra_create(size_t size_of_link,void *loopback) {
-  routing_model_dijkstraboth_create(size_of_link, loopback, 0);
+//...... DEBUG ONLY .... //
+static void print_tree(routing_component_t rc) {
+  printf("(%s %s)\n",rc->name,rc->routing->name);
+  printf("  ");
+  xbt_dict_cursor_t cursor = NULL;
+  char *key;
+  int *val;  
+  if( rc->routing == &(routing_models[SURF_MODEL_FULL]) )
+  { xbt_dict_foreach(((routing_component_full_t)rc)->to_index, cursor, key, val) { printf("<%s-%d> ",key,*val); } }
+  else if( rc->routing == &(routing_models[SURF_MODEL_FLOYD]) )
+  { xbt_dict_foreach(((routing_component_floyd_t)rc)->predecessor_to_index, cursor, key, val) { printf("<%s-%d> ",key,*val); } 
+    xbt_dict_foreach(((routing_component_floyd_t)rc)->AS_to_index, cursor, key, val) { printf("<%s-%d> ",key,*val); } }
+  else
+      xbt_assert0(0, "Invalid model for call \"print_tree\"");
+  printf("\n");  
+  routing_component_t elem;
+  xbt_dict_foreach(rc->routing_sons, cursor, key, elem) {
+    printf("<--\n");  
+    print_tree(elem);
+    printf("-->\n");
+  }
 }
 
-static void routing_model_dijkstracache_create(size_t size_of_link,void *loopback) {
-  routing_model_dijkstraboth_create(size_of_link, loopback, 1);
+//...... DEBUG ONLY .... //
+static void print_global() {
+  xbt_dict_cursor_t cursor = NULL;
+  char *key;
+  routing_component_t elem;  
+  xbt_dict_foreach(global_routing->where_network_elements, cursor, key, elem) {
+    printf("<%s>\n",key);
+  }
 }
 
-/* ************************************************** */
-/* ********** NO ROUTING **************************** */
+//...... DEBUG ONLY .... //
+static void print_AS_start(void) { printf("AS!!! %s y se rutea \"%s\"\n",A_surfxml_AS_id,A_surfxml_AS_routing); }
+static void print_AS_end(void) { printf("AS!!! %s\n",A_surfxml_AS_id); }
+static void print_host(void) { printf("host!!! %s\n",A_surfxml_host_id); }
+static void print_link(void) { printf("link!!! %s\n",A_surfxml_link_id); }
+static void print_route(void) { printf("route!!! %s a %s\n",A_surfxml_route_src,A_surfxml_route_dst); }
+static void print_ctn(void) { printf("ctn!!! %s\n",A_surfxml_link_c_ctn_id); }
 
-
-static void routing_none_finalize(void) {
-  if (used_routing) {
-    xbt_dict_free(&used_routing->host_id);
-    free(used_routing);
-    used_routing=NULL;
+//...... DEBUG ONLY .... //
+static void DEGUB_exit(void) {
+  
+  printf("-------- print tree elements -----\n");
+  print_tree(global_routing->root);
+  printf("----------------------------------\n\n");
+  
+  printf("-------- network_elements --------\n");
+  print_global();
+  printf("----------------------------------\n\n");
+  
+//   char* names[] = { "11.A","11.B","11.C","121.A","121.B","122.A","13.A","13.B"};
+//   int i,j,total = 8;
+
+//   printf("-- print all the example routes --\n");
+//   char* names[] = { "11.A","11.B","11.C"};
+//   int i,j,total = 3;
+
+//   char* names[] = { "141.A","141.B","143.A","143.B"};
+//   int i,j,total = 4;
+
+//   char* names[] = { "142.A","142.B","142.C" };
+//   int i,j,total = 3;
+
+//   char* names[] = { "142.A","142.B","142.C", "11.A","11.B","11.C","141.A","141.B","143.A","143.B","11.A","11.B","11.C","121.A","121.B","122.A","13.A","13.B"};
+//   int i,j,total = 3+4+8+3;
+
+   char* names[] = { "11.A","11.B","11.C",
+                     "121.A","121.B",
+                     "122.A",
+                     "13.A","13.B",
+                     "141.A","141.B",
+                     "142.A","142.B","142.C",
+                     "143.A","143.B",
+                     "15.A","15.B","15.C"};
+   int i,j,total = 3+2+1+2+2+3+2+3;
+
+  printf("-- print all the example routes --\n");
+  xbt_dynar_t links;
+  void* link;
+  for(i=0;i<total;i++) {
+    for(j=0;j<total;j++) {
+      links = (*(global_routing->get_route))(names[i],names[j]);
+      printf("route from %s to %s >>> ",names[i],names[j]);
+      int cpt=0;
+      xbt_dynar_foreach(links, cpt, link) {
+        s_surf_resource_t* generic_resource = link;
+        printf(" %s",generic_resource->name);
+      }
+      printf("\n");
+    }
   }
+  
+  printf("----------------------------------\n\n");
+  
+  printf("---------- call finalize ---------\n");
+  (*(global_routing->finalize))();
+  printf("----------------------------------\n");
+  
+  exit(0); 
 }
 
-static void routing_model_none_create(size_t size_of_link,void *loopback) {
-  routing_t routing = xbt_new0(s_routing_t,1);
-  routing->name = "none";
-  routing->host_count = 0;
-  routing->host_id = xbt_dict_new();
-  routing->get_onelink_routes = NULL;
-  routing->is_router = NULL;
-  routing->get_route = NULL;
-
-  routing->finalize = routing_none_finalize;
-
-  /* Set it in position */
-  used_routing = (routing_t) routing;
-}
+////////////////////////////////////////////////////////////////////////////////
+// HERE END THE NEW CODE
+////////////////////////////////////////////////////////////////////////////////
+
+// /* ************************************************************************** */
+// /* *************************** FULL ROUTING ********************************* */
+// typedef struct {
+//   s_routing_t generic_routing;
+//   xbt_dynar_t *routing_table;
+//   void *loopback;
+//   size_t size_of_link;
+// } s_routing_full_t,*routing_full_t;
+// 
+// #define ROUTE_FULL(i,j) ((routing_full_t)used_routing)->routing_table[(i)+(j)*(used_routing)->host_count]
+// #define HOST2ROUTER(id) ((id)+(2<<29))
+// #define ROUTER2HOST(id) ((id)-(2>>29))
+// #define ISROUTER(id) ((id)>=(2<<29))
+// 
+// /*
+//  * Free the onelink routes
+//  */
+// static void onelink_route_elem_free(void *e) {
+//   s_onelink_t tmp = (s_onelink_t)e;
+//   if(tmp) {
+//     free(tmp);
+//   }
+// }
+// 
+// /*
+//  * Parsing
+//  */
+// static void routing_full_parse_Shost(void) {
+//   int *val = xbt_malloc(sizeof(int));
+//   DEBUG2("Seen host %s (#%d)",A_surfxml_host_id,used_routing->host_count);
+//   *val = used_routing->host_count++;
+//   xbt_dict_set(used_routing->host_id,A_surfxml_host_id,val,xbt_free);
+// #ifdef HAVE_TRACING
+//   TRACE_surf_host_define_id (A_surfxml_host_id, *val);
+// #endif
+// }
+// 
+// static void routing_full_parse_Srouter(void) {
+//     int *val = xbt_malloc(sizeof(int));
+//   DEBUG3("Seen router %s (%d -> #%d)",A_surfxml_router_id,used_routing->router_count,
+//             HOST2ROUTER(used_routing->router_count));
+//   *val = HOST2ROUTER(used_routing->router_count++);
+//   xbt_dict_set(used_routing->host_id,A_surfxml_router_id,val,xbt_free);
+// #ifdef HAVE_TRACING
+//   TRACE_surf_host_define_id (A_surfxml_host_id, *val);
+//   TRACE_surf_host_declaration (A_surfxml_host_id, 0);
+// #endif
+// }
+// 
+// static int src_id = -1;
+// static int dst_id = -1;
+// static void routing_full_parse_Sroute_set_endpoints(void)
+// {
+//   src_id = *(int*)xbt_dict_get(used_routing->host_id,A_surfxml_route_src);
+//   dst_id = *(int*)xbt_dict_get(used_routing->host_id,A_surfxml_route_dst);
+//   DEBUG4("Route %s %d -> %s %d",A_surfxml_route_src,src_id,A_surfxml_route_dst,dst_id);
+//   route_action = A_surfxml_route_action;
+// }
+// 
+// static void routing_full_parse_Eroute(void)
+// {
+//   char *name;
+//   if (src_id != -1 && dst_id != -1) {
+//     name = bprintf("%x#%x", src_id, dst_id);
+//     manage_route(route_table, name, route_action, 0);
+//     free(name);
+//   }
+// }
+// 
+// /* Cluster tag functions */
+// 
+// static void routing_full_parse_change_cpu_data(const char *hostName,
+//                                   const char *surfxml_host_power,
+//                                   const char *surfxml_host_availability,
+//                                   const char *surfxml_host_availability_file,
+//                                   const char *surfxml_host_state_file)
+// {
+//   int AX_ptr = 0;
+// 
+//   SURFXML_BUFFER_SET(host_id, hostName);
+//   SURFXML_BUFFER_SET(host_power, surfxml_host_power /*hostPower */ );
+//   SURFXML_BUFFER_SET(host_availability, surfxml_host_availability);
+//   SURFXML_BUFFER_SET(host_availability_file, surfxml_host_availability_file);
+//   SURFXML_BUFFER_SET(host_state_file, surfxml_host_state_file);
+// }
+// 
+// static void routing_full_parse_change_link_data(const char *linkName,
+//                                    const char *surfxml_link_bandwidth,
+//                                    const char *surfxml_link_bandwidth_file,
+//                                    const char *surfxml_link_latency,
+//                                    const char *surfxml_link_latency_file,
+//                                    const char *surfxml_link_state_file)
+// {
+//   int AX_ptr = 0;
+// 
+//   SURFXML_BUFFER_SET(link_id, linkName);
+//   SURFXML_BUFFER_SET(link_bandwidth, surfxml_link_bandwidth);
+//   SURFXML_BUFFER_SET(link_bandwidth_file, surfxml_link_bandwidth_file);
+//   SURFXML_BUFFER_SET(link_latency, surfxml_link_latency);
+//   SURFXML_BUFFER_SET(link_latency_file, surfxml_link_latency_file);
+//   SURFXML_BUFFER_SET(link_state_file, surfxml_link_state_file);
+// }
+// 
+// static void routing_full_parse_Scluster(void)
+// {
+//   static int AX_ptr = 0;
+// 
+//   char *cluster_id = A_surfxml_cluster_id;
+//   char *cluster_prefix = A_surfxml_cluster_prefix;
+//   char *cluster_suffix = A_surfxml_cluster_suffix;
+//   char *cluster_radical = A_surfxml_cluster_radical;
+//   char *cluster_power = A_surfxml_cluster_power;
+//   char *cluster_bw = A_surfxml_cluster_bw;
+//   char *cluster_lat = A_surfxml_cluster_lat;
+//   char *cluster_bb_bw = A_surfxml_cluster_bb_bw;
+//   char *cluster_bb_lat = A_surfxml_cluster_bb_lat;
+//   char *backbone_name;
+//   unsigned int it1,it2;
+//   char *name1,*name2;
+//   xbt_dynar_t names = NULL;
+//   surfxml_bufferstack_push(1);
+// 
+//   /* Make set a set to parse the prefix/suffix/radical into a neat list of names */
+//   DEBUG4("Make <set id='%s' prefix='%s' suffix='%s' radical='%s'>",
+//       cluster_id,cluster_prefix,cluster_suffix,cluster_radical);
+//   SURFXML_BUFFER_SET(set_id, cluster_id);
+//   SURFXML_BUFFER_SET(set_prefix, cluster_prefix);
+//   SURFXML_BUFFER_SET(set_suffix, cluster_suffix);
+//   SURFXML_BUFFER_SET(set_radical, cluster_radical);
+// 
+//   SURFXML_START_TAG(set);
+//   SURFXML_END_TAG(set);
+// 
+//   names = xbt_dict_get(set_list,cluster_id);
+// 
+//   xbt_dynar_foreach(names,it1,name1) {
+//     /* create the host */
+//     routing_full_parse_change_cpu_data(name1, cluster_power, "1.0", "", "");
+//     A_surfxml_host_state = A_surfxml_host_state_ON;
+// 
+//     SURFXML_START_TAG(host);
+//     SURFXML_END_TAG(host);
+// 
+//     /* Here comes the link */
+//     routing_full_parse_change_link_data(name1, cluster_bw, "", cluster_lat, "", "");
+//     A_surfxml_link_state = A_surfxml_link_state_ON;
+//     A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
+// 
+//     SURFXML_START_TAG(link);
+//     SURFXML_END_TAG(link);
+//   }
+// 
+//   /* Make backbone link */
+//   backbone_name = bprintf("%s_bb", cluster_id);
+//   routing_full_parse_change_link_data(backbone_name, cluster_bb_bw, "", cluster_bb_lat, "",
+//                          "");
+//   A_surfxml_link_state = A_surfxml_link_state_ON;
+//   A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_FATPIPE;
+// 
+//   SURFXML_START_TAG(link);
+//   SURFXML_END_TAG(link);
+// 
+//   /* And now the internal routes */
+//   xbt_dynar_foreach(names,it1,name1) {
+//     xbt_dynar_foreach(names,it2,name2) {
+//       if (strcmp(name1,name2)) {
+//         A_surfxml_route_action = A_surfxml_route_action_POSTPEND;
+//         SURFXML_BUFFER_SET(route_src,name1);
+//         SURFXML_BUFFER_SET(route_dst,name2);
+//         SURFXML_START_TAG(route); {
+//           /* FIXME: name1 link is added by error about 20 lines below, so don't add it here
+//           SURFXML_BUFFER_SET(link_c_ctn_id, name1);
+//           SURFXML_START_TAG(link_c_ctn);
+//           SURFXML_END_TAG(link_c_ctn);
+//            */
+//           SURFXML_BUFFER_SET(link_c_ctn_id, backbone_name);
+//           SURFXML_START_TAG(link_c_ctn);
+//           SURFXML_END_TAG(link_c_ctn);
+// 
+//           SURFXML_BUFFER_SET(link_c_ctn_id, name2);
+//           SURFXML_START_TAG(link_c_ctn);
+//           SURFXML_END_TAG(link_c_ctn);
+// 
+//         } SURFXML_END_TAG(route);
+//       }
+//     }
+//   }
+// 
+//   /* Make route multi with the outside world, i.e. cluster->$* */
+// 
+//   /* FIXME
+//    * This also adds an elements to the routes within the cluster,
+//    * and I guess it's wrong, but since this element is commented out in the above
+//    * code creating the internal routes, we're good.
+//    * To fix it, I'd say that we need a way to understand "$*-${cluster_id}" as "whole world, but the guys in that cluster"
+//    * But for that, we need to install a real expression parser for src/dst attributes
+//    *
+//    * FIXME
+//    * This also adds a dumb element (the private link) in place of the loopback. Then, since
+//    * the loopback is added only if no link to self already exist, this fails.
+//    * That's really dumb.
+//    *
+//    * FIXME
+//    * It seems to me that it does not add the backbone to the path to outside world...
+//    */
+//   SURFXML_BUFFER_SET(route_c_multi_src, cluster_id);
+//   SURFXML_BUFFER_SET(route_c_multi_dst, "$*");
+//   A_surfxml_route_c_multi_symmetric = A_surfxml_route_c_multi_symmetric_NO;
+//   A_surfxml_route_c_multi_action = A_surfxml_route_c_multi_action_PREPEND;
+// 
+//   SURFXML_START_TAG(route_c_multi);
+// 
+//   SURFXML_BUFFER_SET(link_c_ctn_id, "$src");
+// 
+//   SURFXML_START_TAG(link_c_ctn);
+//   SURFXML_END_TAG(link_c_ctn);
+// 
+//   SURFXML_END_TAG(route_c_multi);
+// 
+//   free(backbone_name);
+// 
+//   /* Restore buff */
+//   surfxml_bufferstack_pop(1);
+// }
+// 
+// 
+// static void routing_full_parse_end(void) {
+//   routing_full_t routing = (routing_full_t) used_routing;
+//   int nb_link = 0;
+//   unsigned int cpt = 0;
+//   xbt_dict_cursor_t cursor = NULL;
+//   char *key, *data, *end;
+//   const char *sep = "#";
+//   xbt_dynar_t links, keys;
+//   char *link_name = NULL;
+//   int i,j;
+// 
+//   int host_count = routing->generic_routing.host_count;
+// 
+//   /* Create the routing table */
+//   routing->routing_table = xbt_new0(xbt_dynar_t, host_count * host_count);
+//   for (i=0;i<host_count;i++)
+//     for (j=0;j<host_count;j++)
+//       ROUTE_FULL(i,j) = xbt_dynar_new(routing->size_of_link,NULL);
+// 
+//   /* Put the routes in position */
+//   xbt_dict_foreach(route_table, cursor, key, data) {
+//     nb_link = 0;
+//     links = (xbt_dynar_t) data;
+//     keys = xbt_str_split_str(key, sep);
+// 
+//     src_id = strtol(xbt_dynar_get_as(keys, 0, char *), &end, 16);
+//     dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 16);
+//     xbt_dynar_free(&keys);
+// 
+//     if(xbt_dynar_length(links) == 1){
+//       s_onelink_t new_link = (s_onelink_t) xbt_malloc0(sizeof(s_onelink));
+//       new_link->src_id = src_id;
+//       new_link->dst_id = dst_id;
+//       link_name = xbt_dynar_getfirst_as(links, char*);
+//       new_link->link_ptr = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
+//       DEBUG3("Adding onelink route from (#%d) to (#%d), link_name %s",src_id, dst_id, link_name);
+//       xbt_dict_set(onelink_routes, link_name, (void *)new_link, onelink_route_elem_free);
+// #ifdef HAVE_TRACING
+//       TRACE_surf_link_save_endpoints (link_name, src_id, dst_id);
+// #endif
+//     }
+// 
+//     if(ISROUTER(src_id) || ISROUTER(dst_id)) {
+//                             DEBUG2("There is route with a router here: (%d ,%d)",src_id,dst_id);
+//                             /* Check there is only one link in the route and store the information */
+//                             continue;
+//     }
+// 
+//     DEBUG4("Handle %d %d (from %d hosts): %ld links",
+//         src_id,dst_id,routing->generic_routing.host_count,xbt_dynar_length(links));
+//     xbt_dynar_foreach(links, cpt, link_name) {
+//       void* link = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
+//       if (link)
+//         xbt_dynar_push(ROUTE_FULL(src_id,dst_id),&link);
+//       else
+//         THROW1(mismatch_error,0,"Link %s not found", link_name);
+//     }
+//   }
+// 
+//   /* Add the loopback if needed */
+//   for (i = 0; i < host_count; i++)
+//     if (!xbt_dynar_length(ROUTE_FULL(i, i)))
+//       xbt_dynar_push(ROUTE_FULL(i,i),&routing->loopback);
+// 
+//   /* Shrink the dynar routes (save unused slots) */
+//   for (i=0;i<host_count;i++)
+//     for (j=0;j<host_count;j++)
+//       xbt_dynar_shrink(ROUTE_FULL(i,j),0);
+// }
+// 
+// /*
+//  * Business methods
+//  */
+// static xbt_dynar_t routing_full_get_route(int src,int dst) {
+//   xbt_assert0(!(ISROUTER(src) || ISROUTER(dst)), "Ask for route \"from\" or \"to\" a router node");
+//   return ROUTE_FULL(src,dst);
+// }
+// 
+// static xbt_dict_t routing_full_get_onelink_routes(void){
+//   return onelink_routes;
+// }
+// 
+// static int routing_full_is_router(int id){
+//     return ISROUTER(id);
+// }
+// 
+// static void routing_full_finalize(void) {
+//   routing_full_t routing = (routing_full_t)used_routing;
+//   int i,j;
+// 
+//   if (routing) {
+//     for (i = 0; i < used_routing->host_count; i++)
+//       for (j = 0; j < used_routing->host_count; j++)
+//         xbt_dynar_free(&ROUTE_FULL(i, j));
+//     free(routing->routing_table);
+//     xbt_dict_free(&used_routing->host_id);
+//     xbt_dict_free(&onelink_routes);
+//     free(routing);
+//     routing=NULL;
+//   }
+// }
+// 
+// static void routing_model_full_create(size_t size_of_link,void *loopback) {
+//   /* initialize our structure */
+//   routing_full_t routing = xbt_new0(s_routing_full_t,1);
+//   routing->generic_routing.name = "Full";
+//   routing->generic_routing.host_count = 0;
+//   routing->generic_routing.get_route = routing_full_get_route;
+//   routing->generic_routing.get_onelink_routes = routing_full_get_onelink_routes;
+//   routing->generic_routing.is_router = routing_full_is_router;
+//   routing->generic_routing.finalize = routing_full_finalize;
+// 
+//   routing->size_of_link = size_of_link;
+//   routing->loopback = loopback;
+// 
+//   /* Set it in position */
+//   used_routing = (routing_t) routing;
+// 
+//   /* Set the dict for onehop routes */
+//   onelink_routes =  xbt_dict_new();
+// 
+//   routing->generic_routing.host_id = xbt_dict_new();
+//   
+//   /* Setup the parsing callbacks we need */
+// //   surfxml_add_callback(STag_surfxml_host_cb_list, &routing_full_parse_Shost);
+// //   surfxml_add_callback(STag_surfxml_router_cb_list, &routing_full_parse_Srouter);
+// //   surfxml_add_callback(ETag_surfxml_platform_cb_list, &routing_full_parse_end);
+// //   surfxml_add_callback(STag_surfxml_route_cb_list, &routing_full_parse_Sroute_set_endpoints);
+// //   surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_full_parse_Eroute);
+// //   surfxml_add_callback(STag_surfxml_cluster_cb_list, &routing_full_parse_Scluster);
+// 
+// //   surfxml_add_callback(STag_surfxml_host_cb_list, &routing_full_parse_Shost);
+// //   surfxml_add_callback(STag_surfxml_router_cb_list, &routing_full_parse_Srouter);
+//   
+// }
 
-/*****************************************************************/
-/******************* BYBASS THE PARSER ***************************/
+/* ************************************************************************** */
 
-/*
- * FIXME : better to add to the routing model instead !!
- *
- */
-void routing_add_route(char *source_id,char *destination_id,xbt_dynar_t links_id,int action)
-{
-    char * link_id;
-    char * name;
-    unsigned int i;
-    src_id = *(int*)xbt_dict_get(used_routing->host_id,source_id);
-    dst_id = *(int*)xbt_dict_get(used_routing->host_id,destination_id);
-    DEBUG4("Route %s %d -> %s %d",source_id,src_id,destination_id,dst_id);
-       //set Links
-    xbt_dynar_foreach(links_id,i,link_id)
-     {
-       surf_add_route_element(link_id);
-     }
-    route_action = action;
-       if (src_id != -1 && dst_id != -1) {
-          name = bprintf("%x#%x", src_id, dst_id);
-          manage_route(route_table, name, route_action, 0);
-          free(name);
-       }
+// static void routing_shortest_path_parse_Scluster(void)
+// {
+//   static int AX_ptr = 0;
+// 
+//   char *cluster_id = A_surfxml_cluster_id;
+//   char *cluster_prefix = A_surfxml_cluster_prefix;
+//   char *cluster_suffix = A_surfxml_cluster_suffix;
+//   char *cluster_radical = A_surfxml_cluster_radical;
+//   char *cluster_power = A_surfxml_cluster_power;
+//   char *cluster_bb_bw = A_surfxml_cluster_bb_bw;
+//   char *cluster_bb_lat = A_surfxml_cluster_bb_lat;
+//   char *backbone_name;
+// 
+//   surfxml_bufferstack_push(1);
+// 
+//   /* Make set */
+//   SURFXML_BUFFER_SET(set_id, cluster_id);
+//   SURFXML_BUFFER_SET(set_prefix, cluster_prefix);
+//   SURFXML_BUFFER_SET(set_suffix, cluster_suffix);
+//   SURFXML_BUFFER_SET(set_radical, cluster_radical);
+// 
+//   SURFXML_START_TAG(set);
+//   SURFXML_END_TAG(set);
+// 
+//   /* Make foreach */
+//   SURFXML_BUFFER_SET(foreach_set_id, cluster_id);
+// 
+//   SURFXML_START_TAG(foreach);
+// 
+//   /* Make host for the foreach */
+//   routing_full_parse_change_cpu_data("$1", cluster_power, "1.0", "", "");
+//   A_surfxml_host_state = A_surfxml_host_state_ON;
+// 
+//   SURFXML_START_TAG(host);
+//   SURFXML_END_TAG(host);
+// 
+//   SURFXML_END_TAG(foreach);
+// 
+//   /* Make backbone link */
+//   backbone_name = bprintf("%s_bb", cluster_id);
+//   routing_full_parse_change_link_data(backbone_name, cluster_bb_bw, "", cluster_bb_lat, "",
+//                          "");
+//   A_surfxml_link_state = A_surfxml_link_state_ON;
+//   A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_FATPIPE;
+// 
+//   SURFXML_START_TAG(link);
+//   SURFXML_END_TAG(link);
+// 
+//   free(backbone_name);
+// 
+//   /* Restore buff */
+//   surfxml_bufferstack_pop(1);
+// }
+// 
+// /* ************************************************************************** */
+// /* *************************** FLOYD ROUTING ********************************* */
+// typedef struct {
+//   s_routing_t generic_routing;
+//   int *predecessor_table;
+//   void** link_table;
+//   xbt_dynar_t last_route;
+//   void *loopback;
+//   size_t size_of_link;
+// } s_routing_floyd_t,*routing_floyd_t;
+// 
+// #define FLOYD_COST(i,j) cost_table[(i)+(j)*(used_routing)->host_count]
+// #define FLOYD_PRED(i,j) ((routing_floyd_t)used_routing)->predecessor_table[(i)+(j)*(used_routing)->host_count]
+// #define FLOYD_LINK(i,j) ((routing_floyd_t)used_routing)->link_table[(i)+(j)*(used_routing)->host_count]
+// 
+// static void routing_floyd_parse_end(void) {
+// 
+//   routing_floyd_t routing = (routing_floyd_t) used_routing;
+//   int nb_link = 0;
+//   void* link_list = NULL;
+//   double * cost_table;
+//   xbt_dict_cursor_t cursor = NULL;
+//   char *key,*data, *end;
+//   const char *sep = "#";
+//   xbt_dynar_t links, keys;
+// 
+//   unsigned int i,j;
+//   unsigned int a,b,c;
+//   int host_count = routing->generic_routing.host_count;
+//   char * link_name = NULL;
+//   void * link = NULL;
+// 
+//   /* Create Cost, Predecessor and Link tables */
+//   cost_table = xbt_new0(double, host_count * host_count); //link cost from host to host
+//   routing->predecessor_table = xbt_new0(int, host_count*host_count); //predecessor host numbers
+//   routing->link_table = xbt_new0(void*,host_count*host_count); //actual link between src and dst
+//   routing->last_route = xbt_dynar_new(routing->size_of_link, NULL);
+// 
+//   /* Initialize costs and predecessors*/
+//   for(i = 0; i<host_count;i++)
+//     for(j = 0; j<host_count;j++) {
+//         FLOYD_COST(i,j) = DBL_MAX;
+//         FLOYD_PRED(i,j) = -1;
+//     }
+// 
+//    /* Put the routes in position */
+//   xbt_dict_foreach(route_table, cursor, key, data) {
+//     nb_link = 0;
+//     links = (xbt_dynar_t)data;
+//     keys = xbt_str_split_str(key, sep);
+// 
+//     
+//     src_id = strtol(xbt_dynar_get_as(keys, 0, char*), &end, 16);
+//     dst_id = strtol(xbt_dynar_get_as(keys, 1, char*), &end, 16);
+//     xbt_dynar_free(&keys);
+//  
+//     DEBUG4("Handle %d %d (from %d hosts): %ld links",
+//         src_id,dst_id,routing->generic_routing.host_count,xbt_dynar_length(links));
+//     xbt_assert3(xbt_dynar_length(links) == 1, "%ld links in route between host %d and %d, should be 1", xbt_dynar_length(links), src_id, dst_id);
+//     
+//     link_name = xbt_dynar_getfirst_as(links, char*);
+//     link = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
+// 
+//     if (link)
+//       link_list = link;
+//     else
+//       THROW1(mismatch_error,0,"Link %s not found", link_name);
+//     
+// 
+//     FLOYD_LINK(src_id,dst_id) = link_list;
+//     FLOYD_PRED(src_id, dst_id) = src_id;
+// 
+//     //link cost
+//     FLOYD_COST(src_id, dst_id) = 1; // assume 1 for now
+// 
+//   }
+// 
+//     /* Add the loopback if needed */
+//   for (i = 0; i < host_count; i++)
+//     if (!FLOYD_PRED(i, i)) {
+//       FLOYD_PRED(i, i) = i;
+//       FLOYD_COST(i, i) = 1;
+//       FLOYD_LINK(i, i) = routing->loopback;
+//     }
+// 
+// 
+//   //Calculate path costs 
+// 
+//   for(c=0;c<host_count;c++) {
+//     for(a=0;a<host_count;a++) {
+//       for(b=0;b<host_count;b++) {
+//         if(FLOYD_COST(a,c) < DBL_MAX && FLOYD_COST(c,b) < DBL_MAX) {
+//           if(FLOYD_COST(a,b) == DBL_MAX || (FLOYD_COST(a,c)+FLOYD_COST(c,b) < FLOYD_COST(a,b))) {
+//             FLOYD_COST(a,b) = FLOYD_COST(a,c)+FLOYD_COST(c,b);
+//             FLOYD_PRED(a,b) = FLOYD_PRED(c,b);
+//           }
+//         }
+//       }
+//     }
+//   }
+// 
+//   //cleanup
+//   free(cost_table);
+// }
+// 
+// /*
+//  * Business methods
+//  */
+// static xbt_dynar_t routing_floyd_get_route(int src_id,int dst_id) {
+// 
+//   routing_floyd_t routing = (routing_floyd_t) used_routing;
+// 
+//   int pred = dst_id;
+//   int prev_pred = 0;
+// 
+//   xbt_dynar_reset(routing->last_route);
+// 
+//   do {
+//     prev_pred = pred;
+//     pred = FLOYD_PRED(src_id, pred);
+// 
+//     if(pred == -1) // if no pred in route -> no route to host
+//         break;
+// 
+//     xbt_dynar_unshift(routing->last_route, &FLOYD_LINK(pred,prev_pred));
+// 
+//   } while(pred != src_id);
+// 
+//   xbt_assert2(pred != -1, "no route from host %d to %d", src_id, dst_id);
+// 
+//   return routing->last_route;
+// }
+// 
+// static void routing_floyd_finalize(void) {
+//   routing_floyd_t routing = (routing_floyd_t)used_routing;
+// 
+//   if (routing) {
+//     free(routing->link_table);
+//     free(routing->predecessor_table);
+//     xbt_dynar_free(&routing->last_route);
+//     xbt_dict_free(&used_routing->host_id);
+//     free(routing);
+//     routing=NULL;
+//   }
+// }
+// 
+// static xbt_dict_t routing_floyd_get_onelink_routes(void){
+//   xbt_assert0(0,"The get_onelink_routes feature is not supported in routing model Floyd");
+// }
+// 
+// static int routing_floyd_is_router(int id){
+//   xbt_assert0(0,"The get_is_router feature is not supported in routing model Floyd");
+// }
+// 
+// static void routing_model_floyd_create(size_t size_of_link,void *loopback) {
+//   /* initialize our structure */
+//   routing_floyd_t routing = xbt_new0(s_routing_floyd_t,1);
+//   routing->generic_routing.name = "Floyd";
+//   routing->generic_routing.host_count = 0;
+//   routing->generic_routing.host_id = xbt_dict_new();
+//   routing->generic_routing.get_route = routing_floyd_get_route;
+//   routing->generic_routing.get_onelink_routes = routing_floyd_get_onelink_routes;
+//   routing->generic_routing.is_router = routing_floyd_is_router;
+//   routing->generic_routing.finalize = routing_floyd_finalize;
+//   routing->size_of_link = size_of_link;
+//   routing->loopback = loopback;
+// 
+//   /* Set it in position */
+//   used_routing = (routing_t) routing;
+//   
+//   /* Setup the parsing callbacks we need */
+//   surfxml_add_callback(STag_surfxml_host_cb_list, &routing_full_parse_Shost);
+//   surfxml_add_callback(ETag_surfxml_platform_cb_list, &routing_floyd_parse_end);
+//   surfxml_add_callback(STag_surfxml_route_cb_list, 
+//       &routing_full_parse_Sroute_set_endpoints);
+//   surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_full_parse_Eroute);
+//   surfxml_add_callback(STag_surfxml_cluster_cb_list, &routing_shortest_path_parse_Scluster);
+//   
+// }
+// 
+// /* ************************************************************************** */
+// /* ********** Dijkstra & Dijkstra Cached ROUTING **************************** */
+// typedef struct {
+//   s_routing_t generic_routing;
+//   xbt_graph_t route_graph;
+//   xbt_dict_t graph_node_map;
+//   xbt_dict_t route_cache;
+//   xbt_dynar_t last_route;
+//   int cached;
+//   void *loopback;
+//   size_t size_of_link;
+// } s_routing_dijkstra_t,*routing_dijkstra_t;
+// 
+// 
+// typedef struct graph_node_data {
+//   int id; 
+//   int graph_id; //used for caching internal graph id's
+// } s_graph_node_data_t, * graph_node_data_t;
+// 
+// typedef struct graph_node_map_element {
+//   xbt_node_t node;
+// } s_graph_node_map_element_t, * graph_node_map_element_t;
+// 
+// typedef struct route_cache_element {
+//   int * pred_arr;
+//   int size;
+// } s_route_cache_element_t, * route_cache_element_t; 
+// 
+// /*
+//  * Free functions
+//  */
+// static void route_cache_elem_free(void *e) {
+//   route_cache_element_t elm=(route_cache_element_t)e;
+// 
+//   if (elm) {
+//     free(elm->pred_arr);
+//     free(elm);
+//   }
+// }
+// 
+// static void graph_node_map_elem_free(void *e) {
+//   graph_node_map_element_t elm = (graph_node_map_element_t)e;
+// 
+//   if(elm) {
+//     free(elm);
+//   }
+// }
+// 
+// /*
+//  * Utility functions
+// */
+// static xbt_node_t route_graph_new_node(int id, int graph_id) {
+//   xbt_node_t node = NULL;
+//   graph_node_data_t data = NULL;
+//   graph_node_map_element_t elm = NULL;
+//   routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
+// 
+//   data = xbt_new0(struct graph_node_data, sizeof(struct graph_node_data));
+//   data->id = id;
+//   data->graph_id = graph_id;
+//   node = xbt_graph_new_node(routing->route_graph, data);
+// 
+//   elm = xbt_new0(struct graph_node_map_element, sizeof(struct graph_node_map_element));
+//   elm->node = node;
+//   xbt_dict_set_ext(routing->graph_node_map, (char*)(&id), sizeof(int), (xbt_set_elm_t)elm, &graph_node_map_elem_free);
+// 
+//   return node;
+// }
+// 
+// static graph_node_map_element_t graph_node_map_search(int id) {
+//   routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
+// 
+//   graph_node_map_element_t elm = (graph_node_map_element_t)xbt_dict_get_or_null_ext(routing->graph_node_map, (char*)(&id), sizeof(int));
+// 
+//   return elm;
+// }
+// 
+// /*
+//  * Parsing
+//  */
+// static void route_new_dijkstra(int src_id, int dst_id, void* link) {
+//   routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
+// 
+//   xbt_node_t src = NULL;
+//   xbt_node_t dst = NULL;
+//   graph_node_map_element_t src_elm = (graph_node_map_element_t)xbt_dict_get_or_null_ext(routing->graph_node_map, (char*)(&src_id), sizeof(int));
+//   graph_node_map_element_t dst_elm = (graph_node_map_element_t)xbt_dict_get_or_null_ext(routing->graph_node_map, (char*)(&dst_id), sizeof(int));
+// 
+//   if(src_elm)
+//     src = src_elm->node;
+// 
+//   if(dst_elm)
+//     dst = dst_elm->node;
+// 
+//   //add nodes if they don't exist in the graph
+//   if(src_id == dst_id && src == NULL && dst == NULL) {
+//     src = route_graph_new_node(src_id, -1);
+//     dst = src;
+//   } else {
+//     if(src == NULL) {
+//       src = route_graph_new_node(src_id, -1);
+//     }
+//     
+//     if(dst == NULL) {
+//       dst = route_graph_new_node(dst_id, -1);
+//     }
+//   }
+// 
+//   //add link as edge to graph
+//   xbt_graph_new_edge(routing->route_graph, src, dst, link);
+//   
+// }
+// 
+// static void add_loopback_dijkstra(void) {
+//   routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
+// 
+//     xbt_dynar_t nodes = xbt_graph_get_nodes(routing->route_graph);
+//     
+//     xbt_node_t node = NULL;
+//     unsigned int cursor2;
+//     xbt_dynar_foreach(nodes, cursor2, node) {
+//             xbt_dynar_t out_edges = xbt_graph_node_get_outedges(node); 
+//             xbt_edge_t edge = NULL;
+//             unsigned int cursor;
+//     
+//             int found = 0;
+//             xbt_dynar_foreach(out_edges, cursor, edge) {
+//                     xbt_node_t other_node = xbt_graph_edge_get_target(edge);
+//                     if(other_node == node) {
+//                             found = 1;
+//                             break;
+//                     }
+//             }
+// 
+//             if(!found)
+//                     xbt_graph_new_edge(routing->route_graph, node, node, &routing->loopback);
+//     }
+// }
+// 
+// static void routing_dijkstra_parse_end(void) {
+//   routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
+//   int nb_link = 0;
+//   xbt_dict_cursor_t cursor = NULL;
+//   char *key, *data, *end;
+//   const char *sep = "#";
+//   xbt_dynar_t links, keys;
+//   char* link_name = NULL;
+//   void* link = NULL;
+//   xbt_node_t node = NULL;
+//   unsigned int cursor2;
+//   xbt_dynar_t nodes = NULL;
+//   /* Create the topology graph */
+//   routing->route_graph = xbt_graph_new_graph(1, NULL);
+//   routing->graph_node_map = xbt_dict_new();
+//   routing->last_route = xbt_dynar_new(routing->size_of_link, NULL);
+//   if(routing->cached)
+//     routing->route_cache = xbt_dict_new();
+// 
+// 
+//   /* Put the routes in position */
+//   xbt_dict_foreach(route_table, cursor, key, data) {
+//     nb_link = 0;
+//     links = (xbt_dynar_t) data;
+//     keys = xbt_str_split_str(key, sep);
+// 
+//     src_id = strtol(xbt_dynar_get_as(keys, 0, char *), &end, 16);
+//     dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 16);
+//     xbt_dynar_free(&keys);
+// 
+//     DEBUG4("Handle %d %d (from %d hosts): %ld links",
+//         src_id,dst_id,routing->generic_routing.host_count,xbt_dynar_length(links));
+// 
+//     xbt_assert3(xbt_dynar_length(links) == 1, "%ld links in route between host %d and %d, should be 1", xbt_dynar_length(links), src_id, dst_id);
+// 
+//     link_name = xbt_dynar_getfirst_as(links, char*);
+//     link = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
+//     if (link)
+//       route_new_dijkstra(src_id,dst_id,link);
+//     else
+//       THROW1(mismatch_error,0,"Link %s not found", link_name);
+//     
+//   }
+// 
+//   /* Add the loopback if needed */
+//   add_loopback_dijkstra();
+// 
+//   /* initialize graph indexes in nodes after graph has been built */
+//   nodes = xbt_graph_get_nodes(routing->route_graph);
+// 
+//   xbt_dynar_foreach(nodes, cursor2, node) {
+//     graph_node_data_t data = xbt_graph_node_get_data(node);
+//     data->graph_id = cursor2;
+//   }
+// 
+// }
+// 
+// /*
+//  * Business methods
+//  */
+// static xbt_dynar_t routing_dijkstra_get_route(int src_id,int dst_id) {
+// 
+//   routing_dijkstra_t routing = (routing_dijkstra_t) used_routing;
+//   int * pred_arr = NULL;
+//   int src_node_id = 0;
+//   int dst_node_id = 0;
+//   int * nodeid = NULL;
+//   int v;
+//   int size = 0;
+//   void * link = NULL;
+//   route_cache_element_t elm = NULL;
+//   xbt_dynar_t nodes = xbt_graph_get_nodes(routing->route_graph);
+// 
+//   /*Use the graph_node id mapping set to quickly find the nodes */
+//   graph_node_map_element_t src_elm = graph_node_map_search(src_id);
+//   graph_node_map_element_t dst_elm = graph_node_map_search(dst_id);
+//   xbt_assert2(src_elm != NULL && dst_elm != NULL, "src %d or dst %d does not exist", src_id, dst_id);
+//   src_node_id = ((graph_node_data_t)xbt_graph_node_get_data(src_elm->node))->graph_id;
+//   dst_node_id = ((graph_node_data_t)xbt_graph_node_get_data(dst_elm->node))->graph_id;
+// 
+//   if(routing->cached) {
+//     /*check if there is a cached predecessor list avail */
+//     elm = (route_cache_element_t)xbt_dict_get_or_null_ext(routing->route_cache, (char*)(&src_id), sizeof(int));
+//   }
+// 
+//   if(elm) { //cached mode and cache hit
+//     pred_arr = elm->pred_arr;
+//   } else { //not cached mode or cache miss
+//     double * cost_arr = NULL;
+//     xbt_heap_t pqueue = NULL;
+//     int i = 0;
+// 
+//     int nr_nodes = xbt_dynar_length(nodes);
+//     cost_arr = xbt_new0(double, nr_nodes); //link cost from src to other hosts
+//     pred_arr = xbt_new0(int, nr_nodes); //predecessors in path from src
+//     pqueue = xbt_heap_new(nr_nodes, free);
+// 
+//     //initialize
+//     cost_arr[src_node_id] = 0.0;
+// 
+//     for(i = 0; i < nr_nodes; i++) {
+//       if(i != src_node_id) {
+//         cost_arr[i] = DBL_MAX;
+//       }
+// 
+//       pred_arr[i] = 0;
+// 
+//       //initialize priority queue
+//       nodeid = xbt_new0(int, 1);
+//       *nodeid = i;
+//       xbt_heap_push(pqueue, nodeid, cost_arr[i]);
+// 
+//     }
+// 
+//     // apply dijkstra using the indexes from the graph's node array
+//     while(xbt_heap_size(pqueue) > 0) {
+//       int * v_id = xbt_heap_pop(pqueue);
+//       xbt_node_t v_node = xbt_dynar_get_as(nodes, *v_id, xbt_node_t);
+//       xbt_dynar_t out_edges = xbt_graph_node_get_outedges(v_node); 
+//       xbt_edge_t edge = NULL;
+//       unsigned int cursor;
+// 
+//       xbt_dynar_foreach(out_edges, cursor, edge) {
+//         xbt_node_t u_node = xbt_graph_edge_get_target(edge);
+//         graph_node_data_t data = xbt_graph_node_get_data(u_node);
+//         int u_id = data->graph_id;
+//         int cost_v_u = 1; //fixed link cost for now
+// 
+//         if(cost_v_u + cost_arr[*v_id] < cost_arr[u_id]) {
+//           pred_arr[u_id] = *v_id;
+//           cost_arr[u_id] = cost_v_u + cost_arr[*v_id];
+//           nodeid = xbt_new0(int, 1);
+//           *nodeid = u_id;
+//           xbt_heap_push(pqueue, nodeid, cost_arr[u_id]);
+//         }
+//       }
+// 
+//       //free item popped from pqueue
+//       free(v_id);
+//     }
+// 
+//     free(cost_arr);
+//     xbt_heap_free(pqueue);
+// 
+//   }
+// 
+//   //compose route path with links
+//   xbt_dynar_reset(routing->last_route);
+// 
+//   for(v = dst_node_id; v != src_node_id; v = pred_arr[v]) {
+//     xbt_node_t node_pred_v = xbt_dynar_get_as(nodes, pred_arr[v], xbt_node_t);
+//     xbt_node_t node_v = xbt_dynar_get_as(nodes, v, xbt_node_t);
+//     xbt_edge_t edge = xbt_graph_get_edge(routing->route_graph, node_pred_v, node_v);
+// 
+//     xbt_assert2(edge != NULL, "no route between host %d and %d", src_id, dst_id);
+// 
+//     link = xbt_graph_edge_get_data(edge);
+//     xbt_dynar_unshift(routing->last_route, &link);
+//     size++;
+//   }
+// 
+// 
+//   if(routing->cached && elm == NULL) {
+//     //add to predecessor list of the current src-host to cache
+//     elm = xbt_new0(struct route_cache_element, sizeof(struct route_cache_element));
+//     elm->pred_arr = pred_arr;
+//     elm->size = size;
+//     xbt_dict_set_ext(routing->route_cache, (char*)(&src_id), sizeof(int), (xbt_set_elm_t)elm, &route_cache_elem_free);
+//   }
+// 
+//   if(!routing->cached)
+//     free(pred_arr);
+// 
+//   return routing->last_route;
+// }
+// 
+// 
+// static void routing_dijkstra_finalize(void) {
+//   routing_dijkstra_t routing = (routing_dijkstra_t)used_routing;
+// 
+//   if (routing) {
+//     xbt_graph_free_graph(routing->route_graph, &free, NULL, &free);
+//     xbt_dict_free(&routing->graph_node_map);
+//     if(routing->cached)
+//       xbt_dict_free(&routing->route_cache);
+//     xbt_dynar_free(&routing->last_route);
+//     xbt_dict_free(&used_routing->host_id);
+//     free(routing);
+//     routing=NULL;
+//   }
+// }
+// 
+// static xbt_dict_t routing_dijkstraboth_get_onelink_routes(void){
+//   xbt_assert0(0,"The get_onelink_routes feature is not supported in routing model dijkstraboth");
+// }
+// 
+// static int routing_dijkstraboth_is_router(int id){
+//   xbt_assert0(0,"The get_is_router feature is not supported in routing model dijkstraboth");
+// }
+// 
+// /*
+//  *
+//  */
+// static void routing_model_dijkstraboth_create(size_t size_of_link,void *loopback, int cached) {
+//   /* initialize our structure */
+//   routing_dijkstra_t routing = xbt_new0(s_routing_dijkstra_t,1);
+//   routing->generic_routing.name = "Dijkstra";
+//   routing->generic_routing.host_count = 0;
+//   routing->generic_routing.get_route = routing_dijkstra_get_route;
+//   routing->generic_routing.get_onelink_routes = routing_dijkstraboth_get_onelink_routes;
+//   routing->generic_routing.is_router = routing_dijkstraboth_is_router;
+//   routing->generic_routing.finalize = routing_dijkstra_finalize;
+//   routing->size_of_link = size_of_link;
+//   routing->loopback = loopback;
+//   routing->cached = cached;
+// 
+//   /* Set it in position */
+//   used_routing = (routing_t) routing;
+// 
+//   /* Setup the parsing callbacks we need */
+//   routing->generic_routing.host_id = xbt_dict_new();
+//   surfxml_add_callback(STag_surfxml_host_cb_list, &routing_full_parse_Shost);
+//   surfxml_add_callback(ETag_surfxml_platform_cb_list, &routing_dijkstra_parse_end);
+//   surfxml_add_callback(STag_surfxml_route_cb_list,
+//       &routing_full_parse_Sroute_set_endpoints);
+//   surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_full_parse_Eroute);
+//   surfxml_add_callback(STag_surfxml_cluster_cb_list, &routing_shortest_path_parse_Scluster);
+// }
+// 
+// static void routing_model_dijkstra_create(size_t size_of_link,void *loopback) {
+//   routing_model_dijkstraboth_create(size_of_link, loopback, 0);
+// }
+// 
+// static void routing_model_dijkstracache_create(size_t size_of_link,void *loopback) {
+//   routing_model_dijkstraboth_create(size_of_link, loopback, 1);
+// }
 
-}
+/* ************************************************** */
+/* ********** NO ROUTING **************************** */
 
-void routing_add_host(char* host_id)
-{
-       int *val = xbt_malloc(sizeof(int));
-       DEBUG2("Seen host %s (#%d)",host_id,used_routing->host_count);
-       *val = used_routing->host_count++;
-       xbt_dict_set(used_routing->host_id,host_id,val,xbt_free);
-       #ifdef HAVE_TRACING
-         TRACE_surf_host_define_id (host_id, *val);
-       #endif
-}
 
-void routing_set_routes()
-{
-       routing_full_parse_end();
-}
+// static void routing_none_finalize(void) {
+//   if (used_routing) {
+//     xbt_dict_free(&used_routing->host_id);
+//     free(used_routing);
+//     used_routing=NULL;
+//   }
+// }
+// 
+// static void routing_model_none_create(size_t size_of_link,void *loopback) {
+//   routing_t routing = xbt_new0(s_routing_t,1);
+//   INFO0("Null routing");
+//   routing->name = "none";
+//   routing->host_count = 0;
+//   routing->host_id = xbt_dict_new();
+//   routing->get_onelink_routes = NULL;
+//   routing->is_router = NULL;
+//   routing->get_route = NULL;
+// 
+//   routing->finalize = routing_none_finalize;
+// 
+//   /* Set it in position */
+//   used_routing = (routing_t) routing;
+// }