src/surf/surf_routing.c

   1 /* Copyright (c) 2009, 2010. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7
   8
   9 #include <float.h>
  10 #include "gras_config.h"
  11
  12 #ifdef HAVE_PCRE_LIB
  13 #include <pcre.h>               /* regular expresion library */
  14 #endif
  15 #include "surf_private.h"
  16 #include "xbt/dynar.h"
  17 #include "xbt/str.h"
  18 #include "xbt/config.h"
  19 #include "xbt/graph.h"
  20 #include "xbt/set.h"
  21
  22 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  23
  24 /* Global vars */
  25 routing_global_t global_routing = NULL;
  26 routing_component_t current_routing = NULL;
  27 model_type_t current_routing_model = NULL;
  28
  29 /* Prototypes of each model */
  30 static void *model_full_create(void);   /* create structures for full routing model */
  31 static void model_full_load(void);      /* load parse functions for full routing model */
  32 static void model_full_unload(void);    /* unload parse functions for full routing model */
  33 static void model_full_end(void);       /* finalize the creation of full routing model */
  34
  35 static void *model_floyd_create(void);  /* create structures for floyd routing model */
  36 static void model_floyd_load(void);     /* load parse functions for floyd routing model */
  37 static void model_floyd_unload(void);   /* unload parse functions for floyd routing model */
  38 static void model_floyd_end(void);      /* finalize the creation of floyd routing model */
  39
  40 static void *model_dijkstra_both_create(int cached);    /* create by calling dijkstra or dijkstracache */
  41 static void *model_dijkstra_create(void);       /* create structures for dijkstra routing model */
  42 static void *model_dijkstracache_create(void);  /* create structures for dijkstracache routing model */
  43 static void model_dijkstra_both_load(void);     /* load parse functions for dijkstra routing model */
  44 static void model_dijkstra_both_unload(void);   /* unload parse functions for dijkstra routing model */
  45 static void model_dijkstra_both_end(void);      /* finalize the creation of dijkstra routing model */
  46
  47 static void *model_rulebased_create(void);      /* create structures for rulebased routing model */
  48 static void model_rulebased_load(void); /* load parse functions for rulebased routing model */
  49 static void model_rulebased_unload(void);       /* unload parse functions for rulebased routing model */
  50 static void model_rulebased_end(void);  /* finalize the creation of rulebased routing model */
  51
  52 static void *model_none_create(void);   /* none routing model */
  53 static void model_none_load(void);      /* none routing model */
  54 static void model_none_unload(void);    /* none routing model */
  55 static void model_none_end(void);       /* none routing model */
  56
  57 static void routing_full_parse_Scluster(void);  /*cluster bypass */
  58
  59 static void parse_Sconfig(void);        /*config Tag */
  60
  61 /* this lines are only for replace use like index in the model table */
  62 typedef enum {
  63   SURF_MODEL_FULL = 0,
  64   SURF_MODEL_FLOYD,
  65   SURF_MODEL_DIJKSTRA,
  66   SURF_MODEL_DIJKSTRACACHE,
  67   SURF_MODEL_NONE,
  68 #ifdef HAVE_PCRE_LIB
  69   SURF_MODEL_RULEBASED
  70 #endif
  71 } e_routing_types;
  72
  73
  74 /* must be finish with null and carefull if change de order */
  75 struct s_model_type routing_models[] = { {"Full",
  76                                           "Full routing data (fast, large memory requirements, fully expressive)",
  77                                           model_full_create,
  78                                           model_full_load,
  79                                           model_full_unload,
  80                                           model_full_end},
  81 {"Floyd",
  82  "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  83  model_floyd_create, model_floyd_load, model_floyd_unload,
  84  model_floyd_end},
  85 {"Dijkstra",
  86  "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
  87  model_dijkstra_create, model_dijkstra_both_load,
  88  model_dijkstra_both_unload, model_dijkstra_both_end},
  89 {"DijkstraCache",
  90  "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
  91  model_dijkstracache_create, model_dijkstra_both_load,
  92  model_dijkstra_both_unload, model_dijkstra_both_end},
  93 {"none", "No routing (usable with Constant network only)",
  94  model_none_create, model_none_load, model_none_unload, model_none_end},
  95 #ifdef HAVE_PCRE_LIB
  96 {"RuleBased", "Rule-Based routing data (...)", model_rulebased_create,
  97  model_rulebased_load, model_rulebased_unload, model_rulebased_end},
  98 #endif
  99 {NULL, NULL, NULL, NULL, NULL, NULL}
 100 };
 101
 102 /* ************************************************************************** */
 103 /* ***************** GENERIC PARSE FUNCTIONS (declarations) ***************** */
 104
 105 static void generic_set_processing_unit(routing_component_t rc,
 106                                         const char *name);
 107 static void generic_set_autonomous_system(routing_component_t rc,
 108                                           const char *name);
 109 static void generic_set_route(routing_component_t rc, const char *src,
 110                               const char *dst, route_t route);
 111 static void generic_set_ASroute(routing_component_t rc, const char *src,
 112                                 const char *dst, route_extended_t e_route);
 113 static void generic_set_bypassroute(routing_component_t rc,
 114                                     const char *src, const char *dst,
 115                                     route_extended_t e_route);
 116
 117 /* ************************************************************************** */
 118 /* *************** GENERIC BUSINESS METHODS (declarations) ****************** */
 119
 120 static xbt_dynar_t generic_get_onelink_routes(routing_component_t rc);
 121 static route_extended_t generic_get_bypassroute(routing_component_t rc,
 122                                                 const char *src,
 123                                                 const char *dst);
 124
 125 /* ************************************************************************** */
 126 /* ****************** GENERIC AUX FUNCTIONS (declarations) ****************** */
 127
 128 static route_extended_t
 129 generic_new_extended_route(e_surf_routing_hierarchy_t hierarchy,
 130                            void *data, int order);
 131 static void generic_free_route(route_t route);
 132 static void generic_free_extended_route(route_extended_t e_route);
 133 static routing_component_t
 134 generic_autonomous_system_exist(routing_component_t rc, char *element);
 135 static routing_component_t
 136 generic_processing_units_exist(routing_component_t rc, char *element);
 137 static void generic_src_dst_check(routing_component_t rc, const char *src,
 138                                   const char *dst);
 139
 140 /* ************************************************************************** */
 141 /* **************************** GLOBAL FUNCTIONS **************************** */
 142
 143 /* global parse functions */
 144 static char *src = NULL;        /* temporary store the source name of a route */
 145 static char *dst = NULL;        /* temporary store the destination name of a route */
 146 static char *gw_src = NULL;     /* temporary store the gateway source name of a route */
 147 static char *gw_dst = NULL;     /* temporary store the gateway destination name of a route */
 148 static xbt_dynar_t link_list = NULL;    /* temporary store of current list link of a route */
 149
 150 /**
 151  * \brief Add a "host" to the network element list
 152  */
 153 static void parse_S_host(char *host_id)
 154 {
 155   network_element_info_t info = NULL;
 156   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 157     current_routing->hierarchy = SURF_ROUTING_BASE;
 158   xbt_assert1(!xbt_dict_get_or_null
 159               (global_routing->where_network_elements, host_id),
 160               "Reading a host, processing unit \"%s\" already exist",
 161               host_id);
 162   xbt_assert1(current_routing->set_processing_unit,
 163               "no defined method \"set_processing_unit\" in \"%s\"",
 164               current_routing->name);
 165   (*(current_routing->set_processing_unit)) (current_routing, host_id);
 166   info = xbt_new0(s_network_element_info_t, 1);
 167   info->rc_component = current_routing;
 168   info->rc_type = SURF_NETWORK_ELEMENT_HOST;
 169   xbt_dict_set(global_routing->where_network_elements, host_id,
 170                (void *) info, NULL);
 171 }
 172
 173 /*
 174  * \brief Add a host to the network element list from XML
 175  */
 176 static void parse_S_host_XML(void)
 177 {
 178   parse_S_host(A_surfxml_host_id);
 179 }
 180
 181 /*
 182  * \brief Add a host to the network element list from lua script
 183  */
 184 static void parse_S_host_lua(char *host_id)
 185 {
 186   parse_S_host(host_id);
 187 }
 188
 189 /*
 190  *
 191  */
 192
 193 /**
 194  * \brief Add a "router" to the network element list
 195  */
 196 static void parse_S_router(void)
 197 {
 198   network_element_info_t info = NULL;
 199
 200   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 201     current_routing->hierarchy = SURF_ROUTING_BASE;
 202   xbt_assert1(!xbt_dict_get_or_null
 203               (global_routing->where_network_elements,
 204                A_surfxml_router_id),
 205               "Reading a router, processing unit \"%s\" already exist",
 206               A_surfxml_router_id);
 207   xbt_assert1(current_routing->set_processing_unit,
 208               "no defined method \"set_processing_unit\" in \"%s\"",
 209               current_routing->name);
 210   (*(current_routing->set_processing_unit)) (current_routing,
 211                                              A_surfxml_router_id);
 212   info = xbt_new0(s_network_element_info_t, 1);
 213   info->rc_component = current_routing;
 214   info->rc_type = SURF_NETWORK_ELEMENT_ROUTER;
 215   xbt_dict_set(global_routing->where_network_elements, A_surfxml_router_id,
 216                (void *) info, NULL);
 217 #ifdef HAVE_TRACING
 218   TRACE_surf_host_declaration(A_surfxml_router_id, 0);
 219 #endif
 220 }
 221
 222 /**
 223  * \brief Set the endponints for a route
 224  */
 225 static void parse_S_route_new_and_endpoints(char *src_id, char *dst_id)
 226 {
 227   if (src != NULL && dst != NULL && link_list != NULL)
 228     THROW2(arg_error, 0, "Route between %s to %s can not be defined",
 229            src_id, dst_id);
 230   src = src_id;
 231   dst = dst_id;
 232   xbt_assert2(strlen(src) > 0 || strlen(dst) > 0,
 233               "Some limits are null in the route between \"%s\" and \"%s\"",
 234               src, dst);
 235   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 236 }
 237
 238 /**
 239  * \breif Set the endpoints for a route from XML
 240  */
 241 static void parse_S_route_new_and_endpoints_XML(void)
 242 {
 243   parse_S_route_new_and_endpoints(A_surfxml_route_src,
 244                                   A_surfxml_route_dst);
 245 }
 246
 247 /**
 248  * \breif Set the endpoints for a route from lua
 249  */
 250 static void parse_S_route_new_and_endpoints_lua(char *id_src, char *id_dst)
 251 {
 252   parse_S_route_new_and_endpoints(id_src, id_dst);
 253 }
 254
 255 /**
 256  * \brief Set the endponints and gateways for a ASroute
 257  */
 258 static void parse_S_ASroute_new_and_endpoints(void)
 259 {
 260   if (src != NULL && dst != NULL && link_list != NULL)
 261     THROW2(arg_error, 0, "Route between %s to %s can not be defined",
 262            A_surfxml_ASroute_src, A_surfxml_ASroute_dst);
 263   src = A_surfxml_ASroute_src;
 264   dst = A_surfxml_ASroute_dst;
 265   gw_src = A_surfxml_ASroute_gw_src;
 266   gw_dst = A_surfxml_ASroute_gw_dst;
 267   xbt_assert2(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
 268               || strlen(gw_dst) > 0,
 269               "Some limits are null in the route between \"%s\" and \"%s\"",
 270               src, dst);
 271   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 272 }
 273
 274 /**
 275  * \brief Set the endponints for a bypassRoute
 276  */
 277 static void parse_S_bypassRoute_new_and_endpoints(void)
 278 {
 279   if (src != NULL && dst != NULL && link_list != NULL)
 280     THROW2(arg_error, 0,
 281            "Bypass Route between %s to %s can not be defined",
 282            A_surfxml_bypassRoute_src, A_surfxml_bypassRoute_dst);
 283   src = A_surfxml_bypassRoute_src;
 284   dst = A_surfxml_bypassRoute_dst;
 285   gw_src = A_surfxml_bypassRoute_gw_src;
 286   gw_dst = A_surfxml_bypassRoute_gw_dst;
 287   xbt_assert2(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
 288               || strlen(gw_dst) > 0,
 289               "Some limits are null in the route between \"%s\" and \"%s\"",
 290               src, dst);
 291   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 292 }
 293
 294 /**
 295  * \brief Set a new link on the actual list of link for a route or ASroute
 296  */
 297 static void parse_E_link_ctn_new_elem(char *link_id)
 298 {
 299   char *val;
 300   val = xbt_strdup(link_id);
 301   xbt_dynar_push(link_list, &val);
 302 }
 303
 304 /**
 305  * \brief Set a new link on the actual list of link for a route or ASroute from XML
 306  */
 307
 308 static void parse_E_link_ctn_new_elem_XML(void)
 309 {
 310   parse_E_link_ctn_new_elem(A_surfxml_link_ctn_id);
 311 }
 312
 313 /**
 314  * \brief Set a new link on the actual list of link for a route or ASroute from lua
 315  */
 316 static void parse_E_link_c_ctn_new_elem_lua(char *link_id)
 317 {
 318
 319   parse_E_link_ctn_new_elem(link_id);
 320 }
 321
 322 /**
 323  * \brief Store the route by calling the set_route function of the current routing component
 324  */
 325 static void parse_E_route_store_route(void)
 326 {
 327   route_t route = xbt_new0(s_route_t, 1);
 328   route->link_list = link_list;
 329 //   xbt_assert1(generic_processing_units_exist(current_routing,src),"the \"%s\" processing units gateway does not exist",src);
 330 //   xbt_assert1(generic_processing_units_exist(current_routing,dst),"the \"%s\" processing units gateway does not exist",dst);
 331   xbt_assert1(current_routing->set_route,
 332               "no defined method \"set_route\" in \"%s\"",
 333               current_routing->name);
 334   (*(current_routing->set_route)) (current_routing, src, dst, route);
 335   link_list = NULL;
 336   src = NULL;
 337   dst = NULL;
 338 }
 339
 340 /**
 341  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 342  */
 343 static void parse_E_ASroute_store_route(void)
 344 {
 345   route_extended_t e_route = xbt_new0(s_route_extended_t, 1);
 346   e_route->generic_route.link_list = link_list;
 347   e_route->src_gateway = xbt_strdup(gw_src);
 348   e_route->dst_gateway = xbt_strdup(gw_dst);
 349 //   xbt_assert1(generic_autonomous_system_exist(current_routing,src),"the \"%s\" autonomous system does not exist",src);
 350 //   xbt_assert1(generic_autonomous_system_exist(current_routing,dst),"the \"%s\" autonomous system does not exist",dst);
 351 //   xbt_assert1(generic_processing_units_exist(current_routing,gw_src),"the \"%s\" processing units gateway does not exist",gw_src);
 352 //   xbt_assert1(generic_processing_units_exist(current_routing,gw_dst),"the \"%s\" processing units gateway does not exist",gw_dst);
 353   xbt_assert1(current_routing->set_ASroute,
 354               "no defined method \"set_ASroute\" in \"%s\"",
 355               current_routing->name);
 356   (*(current_routing->set_ASroute)) (current_routing, src, dst, e_route);
 357   link_list = NULL;
 358   src = NULL;
 359   dst = NULL;
 360   gw_src = NULL;
 361   gw_dst = NULL;
 362 }
 363
 364 /**
 365  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 366  */
 367 static void parse_E_bypassRoute_store_route(void)
 368 {
 369   route_extended_t e_route = xbt_new0(s_route_extended_t, 1);
 370   e_route->generic_route.link_list = link_list;
 371   e_route->src_gateway = xbt_strdup(gw_src);
 372   e_route->dst_gateway = xbt_strdup(gw_dst);
 373 //   xbt_assert1(generic_autonomous_system_exist(current_routing,src),"the \"%s\" autonomous system does not exist",src);
 374 //   xbt_assert1(generic_autonomous_system_exist(current_routing,dst),"the \"%s\" autonomous system does not exist",dst);
 375 //   xbt_assert1(generic_processing_units_exist(current_routing,gw_src),"the \"%s\" processing units gateway does not exist",gw_src);
 376 //   xbt_assert1(generic_processing_units_exist(current_routing,gw_dst),"the \"%s\" processing units gateway does not exist",gw_dst);
 377   xbt_assert1(current_routing->set_bypassroute,
 378               "no defined method \"set_bypassroute\" in \"%s\"",
 379               current_routing->name);
 380   (*(current_routing->set_bypassroute)) (current_routing, src, dst,
 381                                          e_route);
 382   link_list = NULL;
 383   src = NULL;
 384   dst = NULL;
 385   gw_src = NULL;
 386   gw_dst = NULL;
 387 }
 388
 389 /**
 390  * \brief Make a new routing component
 391  *
 392  * make the new structure and
 393  * set the parsing functions to allows parsing the part of the routing tree
 394  */
 395 static void parse_S_AS(char *AS_id, char *AS_routing)
 396 {
 397   routing_component_t new_routing;
 398   model_type_t model = NULL;
 399   char *wanted = AS_routing;
 400   int cpt;
 401   /* seach the routing model */
 402   for (cpt = 0; routing_models[cpt].name; cpt++)
 403     if (!strcmp(wanted, routing_models[cpt].name))
 404       model = &routing_models[cpt];
 405   /* if its not exist, error */
 406   if (model == NULL) {
 407     fprintf(stderr, "Routing model %s not found. Existing models:\n",
 408             wanted);
 409     for (cpt = 0; routing_models[cpt].name; cpt++)
 410       if (!strcmp(wanted, routing_models[cpt].name))
 411         fprintf(stderr, "   %s: %s\n", routing_models[cpt].name,
 412                 routing_models[cpt].desc);
 413     xbt_die(NULL);
 414   }
 415
 416   /* make a new routing component */
 417   new_routing = (routing_component_t) (*(model->create)) ();
 418   new_routing->routing = model;
 419   new_routing->hierarchy = SURF_ROUTING_NULL;
 420   new_routing->name = xbt_strdup(AS_id);
 421   new_routing->routing_sons = xbt_dict_new();
 422   //INFO2("Routing %s for AS %s",A_surfxml_AS_routing,A_surfxml_AS_id);
 423
 424   if (current_routing == NULL && global_routing->root == NULL) {
 425
 426     /* it is the first one */
 427     new_routing->routing_father = NULL;
 428     global_routing->root = new_routing;
 429
 430   } else if (current_routing != NULL && global_routing->root != NULL) {
 431
 432     xbt_assert1(!xbt_dict_get_or_null
 433                 (current_routing->routing_sons, AS_id),
 434                 "The AS \"%s\" already exist", AS_id);
 435     /* it is a part of the tree */
 436     new_routing->routing_father = current_routing;
 437     /* set the father behavior */
 438     if (current_routing->hierarchy == SURF_ROUTING_NULL)
 439       current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
 440     /* add to the sons dictionary */
 441     xbt_dict_set(current_routing->routing_sons, AS_id,
 442                  (void *) new_routing, NULL);
 443     /* add to the father element list */
 444     (*(current_routing->set_autonomous_system)) (current_routing, AS_id);
 445     /* unload the prev parse rules */
 446     (*(current_routing->routing->unload)) ();
 447
 448   } else {
 449     THROW0(arg_error, 0, "All defined components must be belong to a AS");
 450   }
 451   /* set the new parse rules */
 452   (*(new_routing->routing->load)) ();
 453   /* set the new current component of the tree */
 454   current_routing = new_routing;
 455 }
 456
 457 /*
 458  * Detect the routing model type of the routing component from XML platforms
 459  */
 460 static void parse_S_AS_XML(void)
 461 {
 462   parse_S_AS(A_surfxml_AS_id, A_surfxml_AS_routing);
 463 }
 464
 465 /*
 466  * define the routing model type of routing component from lua script
 467  */
 468 static void parse_S_AS_lua(char *id, char *mode)
 469 {
 470   parse_S_AS(id, mode);
 471 }
 472
 473
 474 /**
 475  * \brief Finish the creation of a new routing component
 476  *
 477  * When you finish to read the routing component, other structures must be created.
 478  * the "end" method allow to do that for any routing model type
 479  */
 480 static void parse_E_AS(char *AS_id)
 481 {
 482
 483   if (current_routing == NULL) {
 484     THROW1(arg_error, 0, "Close AS(%s), that never open", AS_id);
 485   } else {
 486     network_element_info_t info = NULL;
 487     xbt_assert1(!xbt_dict_get_or_null
 488                 (global_routing->where_network_elements,
 489                  current_routing->name), "The AS \"%s\" already exist",
 490                 current_routing->name);
 491     info = xbt_new0(s_network_element_info_t, 1);
 492     info->rc_component = current_routing->routing_father;
 493     info->rc_type = SURF_NETWORK_ELEMENT_AS;
 494     xbt_dict_set(global_routing->where_network_elements,
 495                  current_routing->name, info, NULL);
 496     (*(current_routing->routing->unload)) ();
 497     (*(current_routing->routing->end)) ();
 498     current_routing = current_routing->routing_father;
 499     if (current_routing != NULL)
 500       (*(current_routing->routing->load)) ();
 501   }
 502 }
 503
 504 /*
 505  * \brief Finish the creation of a new routing component from XML
 506  */
 507 static void parse_E_AS_XML(void)
 508 {
 509   parse_E_AS(A_surfxml_AS_id);
 510 }
 511
 512 /*
 513  * \brief Finish the creation of a new routing component from lua
 514  */
 515 static void parse_E_AS_lua(char *id)
 516 {
 517   parse_E_AS(id);
 518 }
 519
 520 /* Aux Business methods */
 521
 522 /**
 523  * \brief Get the AS father and the first elements of the chain
 524  *
 525  * \param src the source host name
 526  * \param dst the destination host name
 527  *
 528  * Get the common father of the to processing units, and the first different
 529  * father in the chain
 530  */
 531 static xbt_dynar_t elements_father(const char *src, const char *dst)
 532 {
 533
 534   xbt_assert0(src && dst, "bad parameters for \"elements_father\" method");
 535
 536   xbt_dynar_t result = xbt_dynar_new(sizeof(char *), NULL);
 537
 538   routing_component_t src_as, dst_as;
 539   int index_src, index_dst, index_father_src, index_father_dst;
 540   xbt_dynar_t path_src = NULL;
 541   xbt_dynar_t path_dst = NULL;
 542   routing_component_t current = NULL;
 543   routing_component_t *current_src = NULL;
 544   routing_component_t *current_dst = NULL;
 545   routing_component_t *father = NULL;
 546
 547   /* (1) find the as where the src and dst are located */
 548   src_as = ((network_element_info_t)
 549             xbt_dict_get_or_null(global_routing->where_network_elements,
 550                                  src))->rc_component;
 551   dst_as = ((network_element_info_t)
 552             xbt_dict_get_or_null(global_routing->where_network_elements,
 553                                  dst))->rc_component;
 554   xbt_assert2(src_as
 555               && dst_as,
 556               "Ask for route \"from\"(%s) or \"to\"(%s) no found", src,
 557               dst);
 558
 559   /* (2) find the path to the root routing component */
 560   path_src = xbt_dynar_new(sizeof(routing_component_t), NULL);
 561   current = src_as;
 562   while (current != NULL) {
 563     xbt_dynar_push(path_src, &current);
 564     current = current->routing_father;
 565   }
 566   path_dst = xbt_dynar_new(sizeof(routing_component_t), NULL);
 567   current = dst_as;
 568   while (current != NULL) {
 569     xbt_dynar_push(path_dst, &current);
 570     current = current->routing_father;
 571   }
 572
 573   /* (3) find the common father */
 574   index_src = (path_src->used) - 1;
 575   index_dst = (path_dst->used) - 1;
 576   current_src = xbt_dynar_get_ptr(path_src, index_src);
 577   current_dst = xbt_dynar_get_ptr(path_dst, index_dst);
 578   while (index_src >= 0 && index_dst >= 0 && *current_src == *current_dst) {
 579     current_src = xbt_dynar_get_ptr(path_src, index_src);
 580     current_dst = xbt_dynar_get_ptr(path_dst, index_dst);
 581     index_src--;
 582     index_dst--;
 583   }
 584   index_src++;
 585   index_dst++;
 586   current_src = xbt_dynar_get_ptr(path_src, index_src);
 587   current_dst = xbt_dynar_get_ptr(path_dst, index_dst);
 588
 589   /* (4) they are not in the same routing component, make the path */
 590   index_father_src = index_src + 1;
 591   index_father_dst = index_dst + 1;
 592
 593   if (*current_src == *current_dst)
 594     father = current_src;
 595   else
 596     father = xbt_dynar_get_ptr(path_src, index_father_src);
 597
 598   /* (5) result generation */
 599   xbt_dynar_push(result, father);       /* first same the father of src and dst */
 600   xbt_dynar_push(result, current_src);  /* second the first different father of src */
 601   xbt_dynar_push(result, current_dst);  /* three  the first different father of dst */
 602
 603   xbt_dynar_free(&path_src);
 604   xbt_dynar_free(&path_dst);
 605
 606   return result;
 607 }
 608
 609 /* Global Business methods */
 610
 611 /**
 612  * \brief Recursive function for get_route
 613  *
 614  * \param src the source host name
 615  * \param dst the destination host name
 616  *
 617  * This fuction is call by "get_route". It allow to walk through the
 618  * routing components tree.
 619  */
 620 static route_extended_t _get_route(const char *src, const char *dst)
 621 {
 622
 623   void *link;
 624   unsigned int cpt = 0;
 625
 626   DEBUG2("Solve route  \"%s\" to \"%s\"", src, dst);
 627
 628   xbt_assert0(src && dst, "bad parameters for \"_get_route\" method");
 629
 630   route_extended_t e_route, e_route_cnt, e_route_src = NULL, e_route_dst =
 631       NULL;
 632
 633   xbt_dynar_t elem_father_list = elements_father(src, dst);
 634
 635   routing_component_t common_father =
 636       xbt_dynar_get_as(elem_father_list, 0, routing_component_t);
 637   routing_component_t src_father =
 638       xbt_dynar_get_as(elem_father_list, 1, routing_component_t);
 639   routing_component_t dst_father =
 640       xbt_dynar_get_as(elem_father_list, 2, routing_component_t);
 641
 642   e_route = xbt_new0(s_route_extended_t, 1);
 643   e_route->src_gateway = NULL;
 644   e_route->dst_gateway = NULL;
 645   e_route->generic_route.link_list =
 646       xbt_dynar_new(global_routing->size_of_link, NULL);
 647
 648   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 649
 650     if (strcmp(src, dst)) {
 651       e_route_cnt =
 652           (*(common_father->get_route)) (common_father, src, dst);
 653       xbt_assert2(e_route_cnt, "no route between \"%s\" and \"%s\"", src,
 654                   dst);
 655       xbt_dynar_foreach(e_route_cnt->generic_route.link_list, cpt, link) {
 656         xbt_dynar_push(e_route->generic_route.link_list, &link);
 657       }
 658       generic_free_extended_route(e_route_cnt);
 659     }
 660
 661   } else {                      /* SURF_ROUTING_RECURSIVE */
 662
 663     route_extended_t e_route_bypass = NULL;
 664
 665     if (common_father->get_bypass_route)
 666       e_route_bypass =
 667           (*(common_father->get_bypass_route)) (common_father, src, dst);
 668
 669     if (e_route_bypass)
 670       e_route_cnt = e_route_bypass;
 671     else
 672       e_route_cnt =
 673           (*(common_father->get_route)) (common_father, src_father->name,
 674                                          dst_father->name);
 675
 676     xbt_assert2(e_route_cnt, "no route between \"%s\" and \"%s\"",
 677                 src_father->name, dst_father->name);
 678
 679     xbt_assert2((e_route_cnt->src_gateway == NULL) ==
 680                 (e_route_cnt->dst_gateway == NULL),
 681                 "bad gateway for route between \"%s\" and \"%s\"", src,
 682                 dst);
 683
 684     if (src != e_route_cnt->src_gateway) {
 685       e_route_src = _get_route(src, e_route_cnt->src_gateway);
 686       xbt_assert2(e_route_src, "no route between \"%s\" and \"%s\"", src,
 687                   e_route_cnt->src_gateway);
 688       xbt_dynar_foreach(e_route_src->generic_route.link_list, cpt, link) {
 689         xbt_dynar_push(e_route->generic_route.link_list, &link);
 690       }
 691     }
 692
 693     xbt_dynar_foreach(e_route_cnt->generic_route.link_list, cpt, link) {
 694       xbt_dynar_push(e_route->generic_route.link_list, &link);
 695     }
 696
 697     if (e_route_cnt->dst_gateway != dst) {
 698       e_route_dst = _get_route(e_route_cnt->dst_gateway, dst);
 699       xbt_assert2(e_route_dst, "no route between \"%s\" and \"%s\"",
 700                   e_route_cnt->dst_gateway, dst);
 701       xbt_dynar_foreach(e_route_dst->generic_route.link_list, cpt, link) {
 702         xbt_dynar_push(e_route->generic_route.link_list, &link);
 703       }
 704     }
 705
 706     e_route->src_gateway = xbt_strdup(e_route_cnt->src_gateway);
 707     e_route->dst_gateway = xbt_strdup(e_route_cnt->dst_gateway);
 708
 709     generic_free_extended_route(e_route_src);
 710     generic_free_extended_route(e_route_cnt);
 711     generic_free_extended_route(e_route_dst);
 712   }
 713
 714   xbt_dynar_free(&elem_father_list);
 715
 716   return e_route;
 717 }
 718
 719 /**
 720  * \brief Generic method: find a route between hosts
 721  *
 722  * \param src the source host name
 723  * \param dst the destination host name
 724  *
 725  * walk through the routing components tree and find a route between hosts
 726  * by calling the differents "get_route" functions in each routing component
 727  */
 728 static xbt_dynar_t get_route(const char *src, const char *dst)
 729 {
 730
 731   route_extended_t e_route;
 732   xbt_dynar_t elem_father_list = elements_father(src, dst);
 733   routing_component_t common_father =
 734       xbt_dynar_get_as(elem_father_list, 0, routing_component_t);
 735
 736   if (strcmp(src, dst))
 737     e_route = _get_route(src, dst);
 738   else
 739     e_route = (*(common_father->get_route)) (common_father, src, dst);
 740
 741   xbt_assert2(e_route, "no route between \"%s\" and \"%s\"", src, dst);
 742
 743   if (global_routing->last_route)
 744     xbt_dynar_free(&(global_routing->last_route));
 745   global_routing->last_route = e_route->generic_route.link_list;
 746
 747   if (e_route->src_gateway)
 748     xbt_free(e_route->src_gateway);
 749   if (e_route->dst_gateway)
 750     xbt_free(e_route->dst_gateway);
 751
 752   xbt_free(e_route);
 753   xbt_dynar_free(&elem_father_list);
 754
 755   if (xbt_dynar_length(global_routing->last_route) == 0)
 756     return NULL;
 757   else
 758     return global_routing->last_route;
 759 }
 760
 761 /**
 762  * \brief Recursive function for finalize
 763  *
 764  * \param rc the source host name
 765  *
 766  * This fuction is call by "finalize". It allow to finalize the
 767  * AS or routing components. It delete all the structures.
 768  */
 769 static void _finalize(routing_component_t rc)
 770 {
 771   if (rc) {
 772     xbt_dict_cursor_t cursor = NULL;
 773     char *key;
 774     routing_component_t elem;
 775     xbt_dict_foreach(rc->routing_sons, cursor, key, elem) {
 776       _finalize(elem);
 777     }
 778     xbt_dict_t tmp_sons = rc->routing_sons;
 779     char *tmp_name = rc->name;
 780     xbt_dict_free(&tmp_sons);
 781     xbt_free(tmp_name);
 782     xbt_assert1(rc->finalize, "no defined method \"finalize\" in \"%s\"",
 783                 current_routing->name);
 784     (*(rc->finalize)) (rc);
 785   }
 786 }
 787
 788 /**
 789  * \brief Generic method: delete all the routing structures
 790  *
 791  * walk through the routing components tree and delete the structures
 792  * by calling the differents "finalize" functions in each routing component
 793  */
 794 static void finalize(void)
 795 {
 796   /* delete recursibly all the tree */
 797   _finalize(global_routing->root);
 798   /* delete "where" dict */
 799   xbt_dict_free(&(global_routing->where_network_elements));
 800   /* delete last_route */
 801   xbt_dynar_free(&(global_routing->last_route));
 802   /* delete global routing structure */
 803   xbt_free(global_routing);
 804 }
 805
 806 static xbt_dynar_t recursive_get_onelink_routes(routing_component_t rc)
 807 {
 808   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
 809
 810   //adding my one link routes
 811   unsigned int cpt;
 812   void *link;
 813   xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
 814   if (onelink_mine) {
 815     xbt_dynar_foreach(onelink_mine, cpt, link) {
 816       xbt_dynar_push(ret, &link);
 817     }
 818   }
 819   //recursing
 820   char *key;
 821   xbt_dict_cursor_t cursor = NULL;
 822   routing_component_t rc_child;
 823   xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
 824     xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
 825     if (onelink_child) {
 826       xbt_dynar_foreach(onelink_child, cpt, link) {
 827         xbt_dynar_push(ret, &link);
 828       }
 829     }
 830   }
 831   return ret;
 832 }
 833
 834 static xbt_dynar_t get_onelink_routes(void)
 835 {
 836   return recursive_get_onelink_routes(global_routing->root);
 837 }
 838
 839 static e_surf_network_element_type_t get_network_element_type(const char
 840                                                               *name)
 841 {
 842   network_element_info_t rc = NULL;
 843   rc = xbt_dict_get(global_routing->where_network_elements, name);
 844   return rc->rc_type;
 845 }
 846
 847 /**
 848  * \brief Generic method: create the global routing schema
 849  *
 850  * Make a global routing structure and set all the parsing functions.
 851  */
 852 void routing_model_create(size_t size_of_links, void *loopback)
 853 {
 854
 855   /* config the uniq global routing */
 856   global_routing = xbt_new0(s_routing_global_t, 1);
 857   global_routing->where_network_elements = xbt_dict_new();
 858   global_routing->root = NULL;
 859   global_routing->get_route = get_route;
 860   global_routing->get_onelink_routes = get_onelink_routes;
 861   global_routing->get_network_element_type = get_network_element_type;
 862   global_routing->finalize = finalize;
 863   global_routing->loopback = loopback;
 864   global_routing->size_of_link = size_of_links;
 865   global_routing->last_route = xbt_dynar_new(size_of_links, NULL);
 866
 867   /* no current routing at moment */
 868   current_routing = NULL;
 869
 870   /* parse generic elements */
 871   surfxml_add_callback(STag_surfxml_host_cb_list, &parse_S_host_XML);
 872   surfxml_add_callback(STag_surfxml_router_cb_list, &parse_S_router);
 873
 874   surfxml_add_callback(STag_surfxml_route_cb_list,
 875                        &parse_S_route_new_and_endpoints_XML);
 876   surfxml_add_callback(STag_surfxml_ASroute_cb_list,
 877                        &parse_S_ASroute_new_and_endpoints);
 878   surfxml_add_callback(STag_surfxml_bypassRoute_cb_list,
 879                        &parse_S_bypassRoute_new_and_endpoints);
 880
 881   surfxml_add_callback(ETag_surfxml_link_ctn_cb_list,
 882                        &parse_E_link_ctn_new_elem_XML);
 883
 884   surfxml_add_callback(ETag_surfxml_route_cb_list,
 885                        &parse_E_route_store_route);
 886   surfxml_add_callback(ETag_surfxml_ASroute_cb_list,
 887                        &parse_E_ASroute_store_route);
 888   surfxml_add_callback(ETag_surfxml_bypassRoute_cb_list,
 889                        &parse_E_bypassRoute_store_route);
 890
 891   surfxml_add_callback(STag_surfxml_AS_cb_list, &parse_S_AS_XML);
 892   surfxml_add_callback(ETag_surfxml_AS_cb_list, &parse_E_AS_XML);
 893
 894   surfxml_add_callback(STag_surfxml_cluster_cb_list,
 895                        &routing_full_parse_Scluster);
 896
 897   surfxml_add_callback(STag_surfxml_config_cb_list, &parse_Sconfig);
 898 }
 899
 900 /* ************************************************************************** */
 901 /* *************************** FULL ROUTING ********************************* */
 902
 903 #define TO_ROUTE_FULL(i,j) routing->routing_table[(i)+(j)*table_size]
 904
 905 /* Routing model structure */
 906
 907 typedef struct {
 908   s_routing_component_t generic_routing;
 909   xbt_dict_t parse_routes;      /* store data during the parse process */
 910   xbt_dict_t to_index;          /* char* -> network_element_t */
 911   xbt_dict_t bypassRoutes;
 912   route_extended_t *routing_table;
 913 } s_routing_component_full_t, *routing_component_full_t;
 914
 915 /* Business methods */
 916 static xbt_dynar_t full_get_onelink_routes(routing_component_t rc)
 917 {
 918   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
 919
 920   routing_component_full_t routing = (routing_component_full_t) rc;
 921   int table_size = xbt_dict_length(routing->to_index);
 922   xbt_dict_cursor_t c1 = NULL, c2 = NULL;
 923   char *k1, *d1, *k2, *d2;
 924   xbt_dict_foreach(routing->to_index, c1, k1, d1) {
 925     xbt_dict_foreach(routing->to_index, c2, k2, d2) {
 926       int *src_id = xbt_dict_get_or_null(routing->to_index, k1);
 927       int *dst_id = xbt_dict_get_or_null(routing->to_index, k2);
 928       xbt_assert2(src_id
 929                   && dst_id,
 930                   "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",
 931                   src, dst);
 932       route_extended_t route = TO_ROUTE_FULL(*src_id, *dst_id);
 933       if (route) {
 934         if (xbt_dynar_length(route->generic_route.link_list) == 1) {
 935           void *link =
 936               *(void **) xbt_dynar_get_ptr(route->generic_route.link_list,
 937                                            0);
 938           onelink_t onelink = xbt_new0(s_onelink_t, 1);
 939           onelink->link_ptr = link;
 940           if (routing->generic_routing.hierarchy == SURF_ROUTING_BASE) {
 941             onelink->src = xbt_strdup(k1);
 942             onelink->dst = xbt_strdup(k2);
 943           } else if (routing->generic_routing.hierarchy ==
 944                      SURF_ROUTING_RECURSIVE) {
 945             onelink->src = xbt_strdup(route->src_gateway);
 946             onelink->dst = xbt_strdup(route->dst_gateway);
 947           }
 948           xbt_dynar_push(ret, &onelink);
 949         }
 950       }
 951     }
 952   }
 953   return ret;
 954 }
 955
 956 static route_extended_t full_get_route(routing_component_t rc,
 957                                        const char *src, const char *dst)
 958 {
 959   xbt_assert1(rc && src
 960               && dst,
 961               "Invalid params for \"get_route\" function at AS \"%s\"",
 962               rc->name);
 963
 964   /* set utils vars */
 965   routing_component_full_t routing = (routing_component_full_t) rc;
 966   int table_size = xbt_dict_length(routing->to_index);
 967
 968   generic_src_dst_check(rc, src, dst);
 969   int *src_id = xbt_dict_get_or_null(routing->to_index, src);
 970   int *dst_id = xbt_dict_get_or_null(routing->to_index, dst);
 971   xbt_assert2(src_id
 972               && dst_id,
 973               "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",
 974               src, dst);
 975
 976   route_extended_t e_route = NULL;
 977   route_extended_t new_e_route = NULL;
 978   void *link;
 979   unsigned int cpt = 0;
 980
 981   e_route = TO_ROUTE_FULL(*src_id, *dst_id);
 982
 983   if (e_route) {
 984     new_e_route = xbt_new0(s_route_extended_t, 1);
 985     new_e_route->src_gateway = xbt_strdup(e_route->src_gateway);
 986     new_e_route->dst_gateway = xbt_strdup(e_route->dst_gateway);
 987     new_e_route->generic_route.link_list =
 988         xbt_dynar_new(global_routing->size_of_link, NULL);
 989     xbt_dynar_foreach(e_route->generic_route.link_list, cpt, link) {
 990       xbt_dynar_push(new_e_route->generic_route.link_list, &link);
 991     }
 992   }
 993   return new_e_route;
 994 }
 995
 996 static void full_finalize(routing_component_t rc)
 997 {
 998   routing_component_full_t routing = (routing_component_full_t) rc;
 999   int table_size = xbt_dict_length(routing->to_index);
1000   int i, j;
1001   if (routing) {
1002     /* Delete routing table */
1003     for (i = 0; i < table_size; i++)
1004       for (j = 0; j < table_size; j++)
1005         generic_free_extended_route(TO_ROUTE_FULL(i, j));
1006     xbt_free(routing->routing_table);
1007     /* Delete bypass dict */
1008     xbt_dict_free(&routing->bypassRoutes);
1009     /* Delete index dict */
1010     xbt_dict_free(&(routing->to_index));
1011     /* Delete structure */
1012     xbt_free(rc);
1013   }
1014 }
1015
1016 /* Creation routing model functions */
1017
1018 static void *model_full_create(void)
1019 {
1020   routing_component_full_t new_component =
1021       xbt_new0(s_routing_component_full_t, 1);
1022   new_component->generic_routing.set_processing_unit =
1023       generic_set_processing_unit;
1024   new_component->generic_routing.set_autonomous_system =
1025       generic_set_autonomous_system;
1026   new_component->generic_routing.set_route = generic_set_route;
1027   new_component->generic_routing.set_ASroute = generic_set_ASroute;
1028   new_component->generic_routing.set_bypassroute = generic_set_bypassroute;
1029   new_component->generic_routing.get_route = full_get_route;
1030   new_component->generic_routing.get_onelink_routes =
1031       full_get_onelink_routes;
1032   new_component->generic_routing.get_bypass_route =
1033       generic_get_bypassroute;
1034   new_component->generic_routing.finalize = full_finalize;
1035   new_component->to_index = xbt_dict_new();
1036   new_component->bypassRoutes = xbt_dict_new();
1037   new_component->parse_routes = xbt_dict_new();
1038   return new_component;
1039 }
1040
1041 static void model_full_load(void)
1042 {
1043   /* use "surfxml_add_callback" to add a parse function call */
1044 }
1045
1046 static void model_full_unload(void)
1047 {
1048   /* use "surfxml_del_callback" to remove a parse function call */
1049 }
1050
1051 static void model_full_end(void)
1052 {
1053
1054   char *key, *end;
1055   const char *sep = "#";
1056   int src_id, dst_id;
1057   unsigned int i, j;
1058   route_t route;
1059   route_extended_t e_route;
1060   void *data;
1061
1062   xbt_dict_cursor_t cursor = NULL;
1063   xbt_dynar_t keys = NULL;
1064
1065   /* set utils vars */
1066   routing_component_full_t routing =
1067       ((routing_component_full_t) current_routing);
1068   int table_size = xbt_dict_length(routing->to_index);
1069
1070   /* Create the routing table */
1071   routing->routing_table =
1072       xbt_new0(route_extended_t, table_size * table_size);
1073
1074   /* Put the routes in position */
1075   xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
1076     keys = xbt_str_split_str(key, sep);
1077     src_id = strtol(xbt_dynar_get_as(keys, 0, char *), &end, 10);
1078     dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 10);
1079     TO_ROUTE_FULL(src_id, dst_id) =
1080         generic_new_extended_route(current_routing->hierarchy, data, 1);
1081     xbt_dynar_free(&keys);
1082   }
1083
1084   /* delete the parse table */
1085   xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
1086     route = (route_t) data;
1087     xbt_dynar_free(&(route->link_list));
1088     xbt_free(data);
1089   }
1090
1091   /* delete parse dict */
1092   xbt_dict_free(&(routing->parse_routes));
1093
1094   /* Add the loopback if needed */
1095   if (current_routing->hierarchy == SURF_ROUTING_BASE) {
1096     for (i = 0; i < table_size; i++) {
1097       e_route = TO_ROUTE_FULL(i, i);
1098       if (!e_route) {
1099         e_route = xbt_new0(s_route_extended_t, 1);
1100         e_route->src_gateway = NULL;
1101         e_route->dst_gateway = NULL;
1102         e_route->generic_route.link_list =
1103             xbt_dynar_new(global_routing->size_of_link, NULL);
1104         xbt_dynar_push(e_route->generic_route.link_list,
1105                        &global_routing->loopback);
1106         TO_ROUTE_FULL(i, i) = e_route;
1107       }
1108     }
1109   }
1110
1111   /* Shrink the dynar routes (save unused slots) */
1112   for (i = 0; i < table_size; i++)
1113     for (j = 0; j < table_size; j++)
1114       if (TO_ROUTE_FULL(i, j))
1115         xbt_dynar_shrink(TO_ROUTE_FULL(i, j)->generic_route.link_list, 0);
1116 }
1117
1118 /* ************************************************************************** */
1119 /* *************************** FLOYD ROUTING ******************************** */
1120
1121 #define TO_FLOYD_COST(i,j) cost_table[(i)+(j)*table_size]
1122 #define TO_FLOYD_PRED(i,j) (routing->predecessor_table)[(i)+(j)*table_size]
1123 #define TO_FLOYD_LINK(i,j) (routing->link_table)[(i)+(j)*table_size]
1124
1125 /* Routing model structure */
1126
1127 typedef struct {
1128   s_routing_component_t generic_routing;
1129   /* vars for calculate the floyd algorith. */
1130   int *predecessor_table;
1131   route_extended_t *link_table; /* char* -> int* */
1132   xbt_dict_t to_index;
1133   xbt_dict_t bypassRoutes;
1134   /* store data during the parse process */
1135   xbt_dict_t parse_routes;
1136 } s_routing_component_floyd_t, *routing_component_floyd_t;
1137
1138 static route_extended_t floyd_get_route(routing_component_t rc,
1139                                         const char *src, const char *dst);
1140
1141 /* Business methods */
1142 static xbt_dynar_t floyd_get_onelink_routes(routing_component_t rc)
1143 {
1144   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
1145
1146   routing_component_floyd_t routing = (routing_component_floyd_t) rc;
1147   //int table_size = xbt_dict_length(routing->to_index);
1148   xbt_dict_cursor_t c1 = NULL, c2 = NULL;
1149   char *k1, *d1, *k2, *d2;
1150   xbt_dict_foreach(routing->to_index, c1, k1, d1) {
1151     xbt_dict_foreach(routing->to_index, c2, k2, d2) {
1152       route_extended_t route = floyd_get_route(rc, k1, k2);
1153       if (route) {
1154         if (xbt_dynar_length(route->generic_route.link_list) == 1) {
1155           void *link =
1156               *(void **) xbt_dynar_get_ptr(route->generic_route.link_list,
1157                                            0);
1158           onelink_t onelink = xbt_new0(s_onelink_t, 1);
1159           onelink->link_ptr = link;
1160           if (routing->generic_routing.hierarchy == SURF_ROUTING_BASE) {
1161             onelink->src = xbt_strdup(k1);
1162             onelink->dst = xbt_strdup(k2);
1163           } else if (routing->generic_routing.hierarchy ==
1164                      SURF_ROUTING_RECURSIVE) {
1165             onelink->src = xbt_strdup(route->src_gateway);
1166             onelink->dst = xbt_strdup(route->dst_gateway);
1167           }
1168           xbt_dynar_push(ret, &onelink);
1169         }
1170       }
1171     }
1172   }
1173   return ret;
1174 }
1175
1176 static route_extended_t floyd_get_route(routing_component_t rc,
1177                                         const char *src, const char *dst)
1178 {
1179   xbt_assert1(rc && src
1180               && dst,
1181               "Invalid params for \"get_route\" function at AS \"%s\"",
1182               rc->name);
1183
1184   /* set utils vars */
1185   routing_component_floyd_t routing = (routing_component_floyd_t) rc;
1186   int table_size = xbt_dict_length(routing->to_index);
1187
1188   generic_src_dst_check(rc, src, dst);
1189   int *src_id = xbt_dict_get_or_null(routing->to_index, src);
1190   int *dst_id = xbt_dict_get_or_null(routing->to_index, dst);
1191   xbt_assert2(src_id
1192               && dst_id,
1193               "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",
1194               src, dst);
1195
1196   /* create a result route */
1197   route_extended_t new_e_route = xbt_new0(s_route_extended_t, 1);
1198   new_e_route->generic_route.link_list =
1199       xbt_dynar_new(global_routing->size_of_link, NULL);
1200   new_e_route->src_gateway = NULL;
1201   new_e_route->dst_gateway = NULL;
1202
1203   int first = 1;
1204   int pred = *dst_id;
1205   int prev_pred = 0;
1206   char *gw_src = NULL, *gw_dst =
1207       NULL, *prev_gw_src, *prev_gw_dst, *first_gw = NULL;
1208   unsigned int cpt;
1209   void *link;
1210   xbt_dynar_t links;
1211
1212   do {
1213     prev_pred = pred;
1214     pred = TO_FLOYD_PRED(*src_id, pred);
1215     if (pred == -1)             /* if no pred in route -> no route to host */
1216       break;
1217     xbt_assert2(TO_FLOYD_LINK(pred, prev_pred),
1218                 "Invalid link for the route between \"%s\" or \"%s\"", src,
1219                 dst);
1220
1221     prev_gw_src = gw_src;
1222     prev_gw_dst = gw_dst;
1223
1224     route_extended_t e_route = TO_FLOYD_LINK(pred, prev_pred);
1225     gw_src = e_route->src_gateway;
1226     gw_dst = e_route->dst_gateway;
1227
1228     if (first)
1229       first_gw = gw_dst;
1230
1231     if (rc->hierarchy == SURF_ROUTING_RECURSIVE && !first
1232         && strcmp(gw_dst, prev_gw_src)) {
1233       xbt_dynar_t e_route_as_to_as =
1234           (*(global_routing->get_route)) (gw_dst, prev_gw_src);
1235       xbt_assert2(e_route_as_to_as, "no route between \"%s\" and \"%s\"",
1236                   gw_dst, prev_gw_src);
1237       links = e_route_as_to_as;
1238       int pos = 0;
1239       xbt_dynar_foreach(links, cpt, link) {
1240         xbt_dynar_insert_at(new_e_route->generic_route.link_list, pos,
1241                             &link);
1242         pos++;
1243       }
1244     }
1245
1246     links = e_route->generic_route.link_list;
1247     xbt_dynar_foreach(links, cpt, link) {
1248       xbt_dynar_unshift(new_e_route->generic_route.link_list, &link);
1249     }
1250     first = 0;
1251
1252   } while (pred != *src_id);
1253   xbt_assert4(pred != -1, "no route from host %d to %d (\"%s\" to \"%s\")",
1254               *src_id, *dst_id, src, dst);
1255
1256   if (rc->hierarchy == SURF_ROUTING_RECURSIVE) {
1257     new_e_route->src_gateway = xbt_strdup(gw_src);
1258     new_e_route->dst_gateway = xbt_strdup(first_gw);
1259   }
1260
1261   return new_e_route;
1262 }
1263
1264 static void floyd_finalize(routing_component_t rc)
1265 {
1266   routing_component_floyd_t routing = (routing_component_floyd_t) rc;
1267   int i, j, table_size;
1268   if (routing) {
1269     table_size = xbt_dict_length(routing->to_index);
1270     /* Delete link_table */
1271     for (i = 0; i < table_size; i++)
1272       for (j = 0; j < table_size; j++)
1273         generic_free_extended_route(TO_FLOYD_LINK(i, j));
1274     xbt_free(routing->link_table);
1275     /* Delete bypass dict */
1276     xbt_dict_free(&routing->bypassRoutes);
1277     /* Delete index dict */
1278     xbt_dict_free(&(routing->to_index));
1279     /* Delete dictionary index dict, predecessor and links table */
1280     xbt_free(routing->predecessor_table);
1281     /* Delete structure */
1282     xbt_free(rc);
1283   }
1284 }
1285
1286 static void *model_floyd_create(void)
1287 {
1288   routing_component_floyd_t new_component =
1289       xbt_new0(s_routing_component_floyd_t, 1);
1290   new_component->generic_routing.set_processing_unit =
1291       generic_set_processing_unit;
1292   new_component->generic_routing.set_autonomous_system =
1293       generic_set_autonomous_system;
1294   new_component->generic_routing.set_route = generic_set_route;
1295   new_component->generic_routing.set_ASroute = generic_set_ASroute;
1296   new_component->generic_routing.set_bypassroute = generic_set_bypassroute;
1297   new_component->generic_routing.get_route = floyd_get_route;
1298   new_component->generic_routing.get_onelink_routes =
1299       floyd_get_onelink_routes;
1300   new_component->generic_routing.get_bypass_route =
1301       generic_get_bypassroute;
1302   new_component->generic_routing.finalize = floyd_finalize;
1303   new_component->to_index = xbt_dict_new();
1304   new_component->bypassRoutes = xbt_dict_new();
1305   new_component->parse_routes = xbt_dict_new();
1306   return new_component;
1307 }
1308
1309 static void model_floyd_load(void)
1310 {
1311   /* use "surfxml_add_callback" to add a parse function call */
1312 }
1313
1314 static void model_floyd_unload(void)
1315 {
1316   /* use "surfxml_del_callback" to remove a parse function call */
1317 }
1318
1319 static void model_floyd_end(void)
1320 {
1321
1322   routing_component_floyd_t routing =
1323       ((routing_component_floyd_t) current_routing);
1324   xbt_dict_cursor_t cursor = NULL;
1325   double *cost_table;
1326   char *key, *data, *end;
1327   const char *sep = "#";
1328   xbt_dynar_t keys;
1329   int src_id, dst_id;
1330   unsigned int i, j, a, b, c;
1331
1332   /* set the size of inicial table */
1333   int table_size = xbt_dict_length(routing->to_index);
1334
1335   /* Create Cost, Predecessor and Link tables */
1336   cost_table = xbt_new0(double, table_size * table_size);       /* link cost from host to host */
1337   routing->predecessor_table = xbt_new0(int, table_size * table_size);  /* predecessor host numbers */
1338   routing->link_table = xbt_new0(route_extended_t, table_size * table_size);    /* actual link between src and dst */
1339
1340   /* Initialize costs and predecessors */
1341   for (i = 0; i < table_size; i++)
1342     for (j = 0; j < table_size; j++) {
1343       TO_FLOYD_COST(i, j) = DBL_MAX;
1344       TO_FLOYD_PRED(i, j) = -1;
1345       TO_FLOYD_LINK(i, j) = NULL;       /* fixed, missing in the previous version */
1346     }
1347
1348   /* Put the routes in position */
1349   xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
1350     keys = xbt_str_split_str(key, sep);
1351     src_id = strtol(xbt_dynar_get_as(keys, 0, char *), &end, 10);
1352     dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 10);
1353     TO_FLOYD_LINK(src_id, dst_id) =
1354         generic_new_extended_route(current_routing->hierarchy, data, 0);
1355     TO_FLOYD_PRED(src_id, dst_id) = src_id;
1356     /* set link cost */
1357     TO_FLOYD_COST(src_id, dst_id) = ((TO_FLOYD_LINK(src_id, dst_id))->generic_route.link_list)->used;   /* count of links, old model assume 1 */
1358     xbt_dynar_free(&keys);
1359   }
1360
1361   /* Add the loopback if needed */
1362   if (current_routing->hierarchy == SURF_ROUTING_BASE) {
1363     for (i = 0; i < table_size; i++) {
1364       route_extended_t e_route = TO_FLOYD_LINK(i, i);
1365       if (!e_route) {
1366         e_route = xbt_new0(s_route_extended_t, 1);
1367         e_route->src_gateway = NULL;
1368         e_route->dst_gateway = NULL;
1369         e_route->generic_route.link_list =
1370             xbt_dynar_new(global_routing->size_of_link, NULL);
1371         xbt_dynar_push(e_route->generic_route.link_list,
1372                        &global_routing->loopback);
1373         TO_FLOYD_LINK(i, i) = e_route;
1374         TO_FLOYD_PRED(i, i) = i;
1375         TO_FLOYD_COST(i, i) = 1;
1376       }
1377     }
1378   }
1379   /* Calculate path costs */
1380   for (c = 0; c < table_size; c++) {
1381     for (a = 0; a < table_size; a++) {
1382       for (b = 0; b < table_size; b++) {
1383         if (TO_FLOYD_COST(a, c) < DBL_MAX && TO_FLOYD_COST(c, b) < DBL_MAX) {
1384           if (TO_FLOYD_COST(a, b) == DBL_MAX ||
1385               (TO_FLOYD_COST(a, c) + TO_FLOYD_COST(c, b) <
1386                TO_FLOYD_COST(a, b))) {
1387             TO_FLOYD_COST(a, b) =
1388                 TO_FLOYD_COST(a, c) + TO_FLOYD_COST(c, b);
1389             TO_FLOYD_PRED(a, b) = TO_FLOYD_PRED(c, b);
1390           }
1391         }
1392       }
1393     }
1394   }
1395
1396   /* delete the parse table */
1397   xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
1398     route_t route = (route_t) data;
1399     xbt_dynar_free(&(route->link_list));
1400     xbt_free(data);
1401   }
1402
1403   /* delete parse dict */
1404   xbt_dict_free(&(routing->parse_routes));
1405
1406   /* cleanup */
1407   xbt_free(cost_table);
1408 }
1409
1410 /* ************************************************************************** */
1411 /* ********** Dijkstra & Dijkstra Cached ROUTING **************************** */
1412
1413 typedef struct {
1414   s_routing_component_t generic_routing;
1415   xbt_dict_t to_index;
1416   xbt_dict_t bypassRoutes;
1417   xbt_graph_t route_graph;      /* xbt_graph */
1418   xbt_dict_t graph_node_map;    /* map */
1419   xbt_dict_t route_cache;       /* use in cache mode */
1420   int cached;
1421   xbt_dict_t parse_routes;
1422 } s_routing_component_dijkstra_t, *routing_component_dijkstra_t;
1423
1424
1425 typedef struct graph_node_data {
1426   int id;
1427   int graph_id;                 /* used for caching internal graph id's */
1428 } s_graph_node_data_t, *graph_node_data_t;
1429
1430 typedef struct graph_node_map_element {
1431   xbt_node_t node;
1432 } s_graph_node_map_element_t, *graph_node_map_element_t;
1433
1434 typedef struct route_cache_element {
1435   int *pred_arr;
1436   int size;
1437 } s_route_cache_element_t, *route_cache_element_t;
1438
1439 /* Free functions */
1440
1441 static void route_cache_elem_free(void *e)
1442 {
1443   route_cache_element_t elm = (route_cache_element_t) e;
1444   if (elm) {
1445     xbt_free(elm->pred_arr);
1446     xbt_free(elm);
1447   }
1448 }
1449
1450 static void graph_node_map_elem_free(void *e)
1451 {
1452   graph_node_map_element_t elm = (graph_node_map_element_t) e;
1453   if (elm) {
1454     xbt_free(elm);
1455   }
1456 }
1457
1458 static void graph_edge_data_free(void *e)
1459 {
1460   route_extended_t e_route = (route_extended_t) e;
1461   if (e_route) {
1462     xbt_dynar_free(&(e_route->generic_route.link_list));
1463     if (e_route->src_gateway)
1464       xbt_free(e_route->src_gateway);
1465     if (e_route->dst_gateway)
1466       xbt_free(e_route->dst_gateway);
1467     xbt_free(e_route);
1468   }
1469 }
1470
1471 /* Utility functions */
1472
1473 static xbt_node_t route_graph_new_node(routing_component_dijkstra_t rc,
1474                                        int id, int graph_id)
1475 {
1476   routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
1477   xbt_node_t node = NULL;
1478   graph_node_data_t data = NULL;
1479   graph_node_map_element_t elm = NULL;
1480
1481   data = xbt_new0(struct graph_node_data, 1);
1482   data->id = id;
1483   data->graph_id = graph_id;
1484   node = xbt_graph_new_node(routing->route_graph, data);
1485
1486   elm = xbt_new0(struct graph_node_map_element, 1);
1487   elm->node = node;
1488   xbt_dict_set_ext(routing->graph_node_map, (char *) (&id), sizeof(int),
1489                    (xbt_set_elm_t) elm, &graph_node_map_elem_free);
1490
1491   return node;
1492 }
1493
1494 static graph_node_map_element_t
1495 graph_node_map_search(routing_component_dijkstra_t rc, int id)
1496 {
1497   routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
1498   graph_node_map_element_t elm = (graph_node_map_element_t)
1499       xbt_dict_get_or_null_ext(routing->graph_node_map,
1500                                (char *) (&id),
1501                                sizeof(int));
1502   return elm;
1503 }
1504
1505 /* Parsing */
1506
1507 static void route_new_dijkstra(routing_component_dijkstra_t rc, int src_id,
1508                                int dst_id, route_extended_t e_route)
1509 {
1510   routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
1511
1512   xbt_node_t src = NULL;
1513   xbt_node_t dst = NULL;
1514   graph_node_map_element_t src_elm = (graph_node_map_element_t)
1515       xbt_dict_get_or_null_ext(routing->graph_node_map,
1516                                (char *) (&src_id),
1517                                sizeof(int));
1518   graph_node_map_element_t dst_elm = (graph_node_map_element_t)
1519       xbt_dict_get_or_null_ext(routing->graph_node_map,
1520                                (char *) (&dst_id),
1521                                sizeof(int));
1522
1523   if (src_elm)
1524     src = src_elm->node;
1525
1526   if (dst_elm)
1527     dst = dst_elm->node;
1528
1529   /* add nodes if they don't exist in the graph */
1530   if (src_id == dst_id && src == NULL && dst == NULL) {
1531     src = route_graph_new_node(rc, src_id, -1);
1532     dst = src;
1533   } else {
1534     if (src == NULL) {
1535       src = route_graph_new_node(rc, src_id, -1);
1536     }
1537     if (dst == NULL) {
1538       dst = route_graph_new_node(rc, dst_id, -1);
1539     }
1540   }
1541
1542   /* add link as edge to graph */
1543   xbt_graph_new_edge(routing->route_graph, src, dst, e_route);
1544 }
1545
1546 static void add_loopback_dijkstra(routing_component_dijkstra_t rc)
1547 {
1548   routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
1549
1550   xbt_dynar_t nodes = xbt_graph_get_nodes(routing->route_graph);
1551
1552   xbt_node_t node = NULL;
1553   unsigned int cursor2;
1554   xbt_dynar_foreach(nodes, cursor2, node) {
1555     xbt_dynar_t out_edges = xbt_graph_node_get_outedges(node);
1556     xbt_edge_t edge = NULL;
1557     unsigned int cursor;
1558
1559     int found = 0;
1560     xbt_dynar_foreach(out_edges, cursor, edge) {
1561       xbt_node_t other_node = xbt_graph_edge_get_target(edge);
1562       if (other_node == node) {
1563         found = 1;
1564         break;
1565       }
1566     }
1567
1568     if (!found) {
1569       route_extended_t e_route = xbt_new0(s_route_extended_t, 1);
1570       e_route->src_gateway = NULL;
1571       e_route->dst_gateway = NULL;
1572       e_route->generic_route.link_list =
1573           xbt_dynar_new(global_routing->size_of_link, NULL);
1574       xbt_dynar_push(e_route->generic_route.link_list,
1575                      &global_routing->loopback);
1576       xbt_graph_new_edge(routing->route_graph, node, node, e_route);
1577     }
1578   }
1579 }
1580
1581 /* Business methods */
1582 static xbt_dynar_t dijkstra_get_onelink_routes(routing_component_t rc)
1583 {
1584   xbt_die("\"dijkstra_get_onelink_routes\" function not implemented yet");
1585 }
1586
1587 static route_extended_t dijkstra_get_route(routing_component_t rc,
1588                                            const char *src,
1589                                            const char *dst)
1590 {
1591   xbt_assert1(rc && src
1592               && dst,
1593               "Invalid params for \"get_route\" function at AS \"%s\"",
1594               rc->name);
1595
1596   /* set utils vars */
1597   routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
1598
1599   generic_src_dst_check(rc, src, dst);
1600   int *src_id = xbt_dict_get_or_null(routing->to_index, src);
1601   int *dst_id = xbt_dict_get_or_null(routing->to_index, dst);
1602   xbt_assert2(src_id
1603               && dst_id,
1604               "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",
1605               src, dst);
1606
1607   /* create a result route */
1608   route_extended_t new_e_route = xbt_new0(s_route_extended_t, 1);
1609   new_e_route->generic_route.link_list =
1610       xbt_dynar_new(global_routing->size_of_link, NULL);
1611   new_e_route->src_gateway = NULL;
1612   new_e_route->dst_gateway = NULL;
1613
1614   int *pred_arr = NULL;
1615   int src_node_id = 0;
1616   int dst_node_id = 0;
1617   int *nodeid = NULL;
1618   int v;
1619   route_extended_t e_route;
1620   int size = 0;
1621   unsigned int cpt;
1622   void *link;
1623   xbt_dynar_t links = NULL;
1624   route_cache_element_t elm = NULL;
1625   xbt_dynar_t nodes = xbt_graph_get_nodes(routing->route_graph);
1626
1627   /* Use the graph_node id mapping set to quickly find the nodes */
1628   graph_node_map_element_t src_elm =
1629       graph_node_map_search(routing, *src_id);
1630   graph_node_map_element_t dst_elm =
1631       graph_node_map_search(routing, *dst_id);
1632   xbt_assert2(src_elm != NULL
1633               && dst_elm != NULL, "src %d or dst %d does not exist",
1634               *src_id, *dst_id);
1635   src_node_id = ((graph_node_data_t)
1636                  xbt_graph_node_get_data(src_elm->node))->graph_id;
1637   dst_node_id = ((graph_node_data_t)
1638                  xbt_graph_node_get_data(dst_elm->node))->graph_id;
1639
1640   /* if the src and dst are the same *//* fixed, missing in the previous version */
1641   if (src_node_id == dst_node_id) {
1642
1643     xbt_node_t node_s_v = xbt_dynar_get_as(nodes, src_node_id, xbt_node_t);
1644     xbt_node_t node_e_v = xbt_dynar_get_as(nodes, dst_node_id, xbt_node_t);
1645     xbt_edge_t edge =
1646         xbt_graph_get_edge(routing->route_graph, node_s_v, node_e_v);
1647
1648     xbt_assert2(edge != NULL, "no route between host %d and %d", *src_id,
1649                 *dst_id);
1650
1651     e_route = (route_extended_t) xbt_graph_edge_get_data(edge);
1652
1653     links = e_route->generic_route.link_list;
1654     xbt_dynar_foreach(links, cpt, link) {
1655       xbt_dynar_unshift(new_e_route->generic_route.link_list, &link);
1656     }
1657
1658     return new_e_route;
1659   }
1660
1661   if (routing->cached) {
1662     /*check if there is a cached predecessor list avail */
1663     elm = (route_cache_element_t)
1664         xbt_dict_get_or_null_ext(routing->route_cache, (char *) (&src_id),
1665                                  sizeof(int));
1666   }
1667
1668   if (elm) {                    /* cached mode and cache hit */
1669     pred_arr = elm->pred_arr;
1670   } else {                      /* not cached mode or cache miss */
1671     double *cost_arr = NULL;
1672     xbt_heap_t pqueue = NULL;
1673     int i = 0;
1674
1675     int nr_nodes = xbt_dynar_length(nodes);
1676     cost_arr = xbt_new0(double, nr_nodes);      /* link cost from src to other hosts */
1677     pred_arr = xbt_new0(int, nr_nodes); /* predecessors in path from src */
1678     pqueue = xbt_heap_new(nr_nodes, xbt_free);
1679
1680     /* initialize */
1681     cost_arr[src_node_id] = 0.0;
1682
1683     for (i = 0; i < nr_nodes; i++) {
1684       if (i != src_node_id) {
1685         cost_arr[i] = DBL_MAX;
1686       }
1687
1688       pred_arr[i] = 0;
1689
1690       /* initialize priority queue */
1691       nodeid = xbt_new0(int, 1);
1692       *nodeid = i;
1693       xbt_heap_push(pqueue, nodeid, cost_arr[i]);
1694
1695     }
1696
1697     /* apply dijkstra using the indexes from the graph's node array */
1698     while (xbt_heap_size(pqueue) > 0) {
1699       int *v_id = xbt_heap_pop(pqueue);
1700       xbt_node_t v_node = xbt_dynar_get_as(nodes, *v_id, xbt_node_t);
1701       xbt_dynar_t out_edges = xbt_graph_node_get_outedges(v_node);
1702       xbt_edge_t edge = NULL;
1703       unsigned int cursor;
1704
1705       xbt_dynar_foreach(out_edges, cursor, edge) {
1706         xbt_node_t u_node = xbt_graph_edge_get_target(edge);
1707         graph_node_data_t data = xbt_graph_node_get_data(u_node);
1708         int u_id = data->graph_id;
1709         route_extended_t tmp_e_route =
1710             (route_extended_t) xbt_graph_edge_get_data(edge);
1711         int cost_v_u = (tmp_e_route->generic_route.link_list)->used;    /* count of links, old model assume 1 */
1712
1713         if (cost_v_u + cost_arr[*v_id] < cost_arr[u_id]) {
1714           pred_arr[u_id] = *v_id;
1715           cost_arr[u_id] = cost_v_u + cost_arr[*v_id];
1716           nodeid = xbt_new0(int, 1);
1717           *nodeid = u_id;
1718           xbt_heap_push(pqueue, nodeid, cost_arr[u_id]);
1719         }
1720       }
1721
1722       /* free item popped from pqueue */
1723       xbt_free(v_id);
1724     }
1725
1726     xbt_free(cost_arr);
1727     xbt_heap_free(pqueue);
1728   }
1729
1730   /* compose route path with links */
1731   char *gw_src = NULL, *gw_dst =
1732       NULL, *prev_gw_src, *prev_gw_dst, *first_gw = NULL;
1733
1734   for (v = dst_node_id; v != src_node_id; v = pred_arr[v]) {
1735     xbt_node_t node_pred_v =
1736         xbt_dynar_get_as(nodes, pred_arr[v], xbt_node_t);
1737     xbt_node_t node_v = xbt_dynar_get_as(nodes, v, xbt_node_t);
1738     xbt_edge_t edge =
1739         xbt_graph_get_edge(routing->route_graph, node_pred_v, node_v);
1740
1741     xbt_assert2(edge != NULL, "no route between host %d and %d", *src_id,
1742                 *dst_id);
1743
1744     prev_gw_src = gw_src;
1745     prev_gw_dst = gw_dst;
1746
1747     e_route = (route_extended_t) xbt_graph_edge_get_data(edge);
1748     gw_src = e_route->src_gateway;
1749     gw_dst = e_route->dst_gateway;
1750
1751     if (v == dst_node_id)
1752       first_gw = gw_dst;
1753
1754     if (rc->hierarchy == SURF_ROUTING_RECURSIVE && v != dst_node_id
1755         && strcmp(gw_dst, prev_gw_src)) {
1756       xbt_dynar_t e_route_as_to_as =
1757           (*(global_routing->get_route)) (gw_dst, prev_gw_src);
1758       xbt_assert2(e_route_as_to_as, "no route between \"%s\" and \"%s\"",
1759                   gw_dst, prev_gw_src);
1760       links = e_route_as_to_as;
1761       int pos = 0;
1762       xbt_dynar_foreach(links, cpt, link) {
1763         xbt_dynar_insert_at(new_e_route->generic_route.link_list, pos,
1764                             &link);
1765         pos++;
1766       }
1767     }
1768
1769     links = e_route->generic_route.link_list;
1770     xbt_dynar_foreach(links, cpt, link) {
1771       xbt_dynar_unshift(new_e_route->generic_route.link_list, &link);
1772     }
1773     size++;
1774   }
1775
1776   if (rc->hierarchy == SURF_ROUTING_RECURSIVE) {
1777     new_e_route->src_gateway = xbt_strdup(gw_src);
1778     new_e_route->dst_gateway = xbt_strdup(first_gw);
1779   }
1780
1781   if (routing->cached && elm == NULL) {
1782     /* add to predecessor list of the current src-host to cache */
1783     elm = xbt_new0(struct route_cache_element, 1);
1784     elm->pred_arr = pred_arr;
1785     elm->size = size;
1786     xbt_dict_set_ext(routing->route_cache, (char *) (&src_id), sizeof(int),
1787                      (xbt_set_elm_t) elm, &route_cache_elem_free);
1788   }
1789
1790   if (!routing->cached)
1791     xbt_free(pred_arr);
1792
1793   return new_e_route;
1794 }
1795
1796 static void dijkstra_finalize(routing_component_t rc)
1797 {
1798   routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
1799
1800   if (routing) {
1801     xbt_graph_free_graph(routing->route_graph, &xbt_free,
1802                          &graph_edge_data_free, &xbt_free);
1803     xbt_dict_free(&routing->graph_node_map);
1804     if (routing->cached)
1805       xbt_dict_free(&routing->route_cache);
1806     /* Delete bypass dict */
1807     xbt_dict_free(&routing->bypassRoutes);
1808     /* Delete index dict */
1809     xbt_dict_free(&(routing->to_index));
1810     /* Delete structure */
1811     xbt_free(routing);
1812   }
1813 }
1814
1815 /* Creation routing model functions */
1816
1817 static void *model_dijkstra_both_create(int cached)
1818 {
1819   routing_component_dijkstra_t new_component =
1820       xbt_new0(s_routing_component_dijkstra_t, 1);
1821   new_component->generic_routing.set_processing_unit =
1822       generic_set_processing_unit;
1823   new_component->generic_routing.set_autonomous_system =
1824       generic_set_autonomous_system;
1825   new_component->generic_routing.set_route = generic_set_route;
1826   new_component->generic_routing.set_ASroute = generic_set_ASroute;
1827   new_component->generic_routing.set_bypassroute = generic_set_bypassroute;
1828   new_component->generic_routing.get_route = dijkstra_get_route;
1829   new_component->generic_routing.get_onelink_routes =
1830       dijkstra_get_onelink_routes;
1831   new_component->generic_routing.get_bypass_route =
1832       generic_get_bypassroute;
1833   new_component->generic_routing.finalize = dijkstra_finalize;
1834   new_component->cached = cached;
1835   new_component->to_index = xbt_dict_new();
1836   new_component->bypassRoutes = xbt_dict_new();
1837   new_component->parse_routes = xbt_dict_new();
1838   return new_component;
1839 }
1840
1841 static void *model_dijkstra_create(void)
1842 {
1843   return model_dijkstra_both_create(0);
1844 }
1845
1846 static void *model_dijkstracache_create(void)
1847 {
1848   return model_dijkstra_both_create(1);
1849 }
1850
1851 static void model_dijkstra_both_load(void)
1852 {
1853   /* use "surfxml_add_callback" to add a parse function call */
1854 }
1855
1856 static void model_dijkstra_both_unload(void)
1857 {
1858   /* use "surfxml_del_callback" to remove a parse function call */
1859 }
1860
1861 static void model_dijkstra_both_end(void)
1862 {
1863   routing_component_dijkstra_t routing =
1864       (routing_component_dijkstra_t) current_routing;
1865   xbt_dict_cursor_t cursor = NULL;
1866   char *key, *data, *end;
1867   const char *sep = "#";
1868   xbt_dynar_t keys;
1869   xbt_node_t node = NULL;
1870   unsigned int cursor2;
1871   xbt_dynar_t nodes = NULL;
1872   int src_id, dst_id;
1873   route_t route;
1874
1875   /* Create the topology graph */
1876   routing->route_graph = xbt_graph_new_graph(1, NULL);
1877   routing->graph_node_map = xbt_dict_new();
1878
1879   if (routing->cached)
1880     routing->route_cache = xbt_dict_new();
1881
1882   /* Put the routes in position */
1883   xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
1884     keys = xbt_str_split_str(key, sep);
1885     src_id = strtol(xbt_dynar_get_as(keys, 0, char *), &end, 10);
1886     dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 10);
1887     route_extended_t e_route =
1888         generic_new_extended_route(current_routing->hierarchy, data, 0);
1889     route_new_dijkstra(routing, src_id, dst_id, e_route);
1890     xbt_dynar_free(&keys);
1891   }
1892
1893   /* delete the parse table */
1894   xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
1895     route = (route_t) data;
1896     xbt_dynar_free(&(route->link_list));
1897     xbt_free(data);
1898   }
1899
1900   /* delete parse dict */
1901   xbt_dict_free(&(routing->parse_routes));
1902
1903   /* Add the loopback if needed */
1904   if (current_routing->hierarchy == SURF_ROUTING_BASE)
1905     add_loopback_dijkstra(routing);
1906
1907   /* initialize graph indexes in nodes after graph has been built */
1908   nodes = xbt_graph_get_nodes(routing->route_graph);
1909
1910   xbt_dynar_foreach(nodes, cursor2, node) {
1911     graph_node_data_t data = xbt_graph_node_get_data(node);
1912     data->graph_id = cursor2;
1913   }
1914
1915 }
1916
1917 #ifdef HAVE_PCRE_LIB
1918 /* ************************************************** */
1919 /* ************** RULE-BASED ROUTING **************** */
1920
1921 /* Routing model structure */
1922
1923 typedef struct {
1924   s_routing_component_t generic_routing;
1925   xbt_dict_t dict_processing_units;
1926   xbt_dict_t dict_autonomous_systems;
1927   xbt_dynar_t list_route;
1928   xbt_dynar_t list_ASroute;
1929 } s_routing_component_rulebased_t, *routing_component_rulebased_t;
1930
1931 typedef struct s_rule_route s_rule_route_t, *rule_route_t;
1932 typedef struct s_rule_route_extended s_rule_route_extended_t,
1933     *rule_route_extended_t;
1934
1935 struct s_rule_route {
1936   xbt_dynar_t re_str_link;      // dynar of char*
1937   pcre *re_src;
1938   pcre *re_dst;
1939 };
1940
1941 struct s_rule_route_extended {
1942   s_rule_route_t generic_rule_route;
1943   char *re_src_gateway;
1944   char *re_dst_gateway;
1945 };
1946
1947 static void rule_route_free(void *e)
1948 {
1949   rule_route_t *elem = (rule_route_t *) (e);
1950   if (*elem) {
1951     xbt_dynar_free(&(*elem)->re_str_link);
1952     pcre_free((*elem)->re_src);
1953     pcre_free((*elem)->re_dst);
1954     xbt_free((*elem));
1955   }
1956   (*elem) = NULL;
1957 }
1958
1959 static void rule_route_extended_free(void *e)
1960 {
1961   rule_route_extended_t *elem = (rule_route_extended_t *) e;
1962   if (*elem) {
1963     xbt_dynar_free(&(*elem)->generic_rule_route.re_str_link);
1964     pcre_free((*elem)->generic_rule_route.re_src);
1965     pcre_free((*elem)->generic_rule_route.re_dst);
1966     xbt_free((*elem)->re_src_gateway);
1967     xbt_free((*elem)->re_dst_gateway);
1968     xbt_free((*elem));
1969   }
1970 }
1971
1972 /* Parse routing model functions */
1973
1974 static void model_rulebased_set_processing_unit(routing_component_t rc,
1975                                                 const char *name)
1976 {
1977   routing_component_rulebased_t routing =
1978       (routing_component_rulebased_t) rc;
1979   xbt_dict_set(routing->dict_processing_units, name, (void *) (-1), NULL);
1980 }
1981
1982 static void model_rulebased_set_autonomous_system(routing_component_t rc,
1983                                                   const char *name)
1984 {
1985   routing_component_rulebased_t routing =
1986       (routing_component_rulebased_t) rc;
1987   xbt_dict_set(routing->dict_autonomous_systems, name, (void *) (-1),
1988                NULL);
1989 }
1990
1991 static void model_rulebased_set_route(routing_component_t rc,
1992                                       const char *src, const char *dst,
1993                                       route_t route)
1994 {
1995   routing_component_rulebased_t routing =
1996       (routing_component_rulebased_t) rc;
1997   rule_route_t ruleroute = xbt_new0(s_rule_route_t, 1);
1998   const char *error;
1999   int erroffset;
2000   ruleroute->re_src = pcre_compile(src, 0, &error, &erroffset, NULL);
2001   xbt_assert3(ruleroute->re_src,
2002               "PCRE compilation failed at offset %d (\"%s\"): %s\n",
2003               erroffset, src, error);
2004   ruleroute->re_dst = pcre_compile(dst, 0, &error, &erroffset, NULL);
2005   xbt_assert3(ruleroute->re_src,
2006               "PCRE compilation failed at offset %d (\"%s\"): %s\n",
2007               erroffset, dst, error);
2008   ruleroute->re_str_link = route->link_list;
2009   xbt_dynar_push(routing->list_route, &ruleroute);
2010   xbt_free(route);
2011 }
2012
2013 static void model_rulebased_set_ASroute(routing_component_t rc,
2014                                         const char *src, const char *dst,
2015                                         route_extended_t route)
2016 {
2017   routing_component_rulebased_t routing =
2018       (routing_component_rulebased_t) rc;
2019   rule_route_extended_t ruleroute_e = xbt_new0(s_rule_route_extended_t, 1);
2020   const char *error;
2021   int erroffset;
2022   ruleroute_e->generic_rule_route.re_src =
2023       pcre_compile(src, 0, &error, &erroffset, NULL);
2024   xbt_assert3(ruleroute_e->generic_rule_route.re_src,
2025               "PCRE compilation failed at offset %d (\"%s\"): %s\n",
2026               erroffset, src, error);
2027   ruleroute_e->generic_rule_route.re_dst =
2028       pcre_compile(dst, 0, &error, &erroffset, NULL);
2029   xbt_assert3(ruleroute_e->generic_rule_route.re_src,
2030               "PCRE compilation failed at offset %d (\"%s\"): %s\n",
2031               erroffset, dst, error);
2032   ruleroute_e->generic_rule_route.re_str_link =
2033       route->generic_route.link_list;
2034   ruleroute_e->re_src_gateway = route->src_gateway;
2035   ruleroute_e->re_dst_gateway = route->dst_gateway;
2036   xbt_dynar_push(routing->list_ASroute, &ruleroute_e);
2037   xbt_free(route->src_gateway);
2038   xbt_free(route->dst_gateway);
2039   xbt_free(route);
2040 }
2041
2042 static void model_rulebased_set_bypassroute(routing_component_t rc,
2043                                             const char *src,
2044                                             const char *dst,
2045                                             route_extended_t e_route)
2046 {
2047   xbt_die("bypass routing not supported for Route-Based model");
2048 }
2049
2050 #define BUFFER_SIZE 4096        /* result buffer size */
2051 #define OVECCOUNT 30            /* should be a multiple of 3 */
2052
2053 static char *remplace(char *value, const char **src_list, int src_size,
2054                       const char **dst_list, int dst_size)
2055 {
2056
2057   char result_result[BUFFER_SIZE];
2058   int i_result_buffer;
2059   int value_length = (int) strlen(value);
2060   int number = 0;
2061
2062   int i = 0;
2063   i_result_buffer = 0;
2064   do {
2065     if (value[i] == '$') {
2066       i++;                      // skip $
2067
2068       // find the number
2069       int number_length = 0;
2070       while ('0' <= value[i + number_length]
2071              && value[i + number_length] <= '9') {
2072         number_length++;
2073       }
2074       xbt_assert2(number_length != 0,
2075                   "bad string parameter, no number indication, at offset: %d (\"%s\")",
2076                   i, value);
2077
2078       // solve number
2079       number = atoi(value + i);
2080       i = i + number_length;
2081       xbt_assert2(i + 2 < value_length,
2082                   "bad string parameter, too few chars, at offset: %d (\"%s\")",
2083                   i, value);
2084
2085       // solve the indication
2086       const char **param_list;
2087       int param_size;
2088       if (value[i] == 's' && value[i + 1] == 'r' && value[i + 2] == 'c') {
2089         param_list = src_list;
2090         param_size = src_size;
2091       } else if (value[i] == 'd' && value[i + 1] == 's'
2092                  && value[i + 2] == 't') {
2093         param_list = dst_list;
2094         param_size = dst_size;
2095       } else {
2096         xbt_assert2(0,
2097                     "bad string parameter, support only \"src\" and \"dst\", at offset: %d (\"%s\")",
2098                     i, value);
2099       }
2100       i = i + 3;
2101
2102       xbt_assert4(param_size >= number,
2103                   "bad string parameter, not enough length param_size, at offset: %d (\"%s\") %d %d",
2104                   i, value, param_size, number);
2105
2106       const char *param = param_list[number];
2107       int size = strlen(param);
2108       int cp;
2109       for (cp = 0; cp < size; cp++) {
2110         result_result[i_result_buffer] = param[cp];
2111         i_result_buffer++;
2112         if (i_result_buffer >= BUFFER_SIZE)
2113           break;
2114       }
2115     } else {
2116       result_result[i_result_buffer] = value[i];
2117       i_result_buffer++;
2118       i++;                      // next char
2119     }
2120
2121   } while (i < value_length && i_result_buffer < BUFFER_SIZE);
2122
2123   xbt_assert2(i_result_buffer < BUFFER_SIZE,
2124               "solving string \"%s\", small buffer size (%d)", value,
2125               BUFFER_SIZE);
2126   result_result[i_result_buffer] = 0;
2127   return xbt_strdup(result_result);
2128 }
2129
2130 static route_extended_t rulebased_get_route(routing_component_t rc,
2131                                             const char *src,
2132                                             const char *dst);
2133 static xbt_dynar_t rulebased_get_onelink_routes(routing_component_t rc)
2134 {
2135   xbt_dynar_t ret = xbt_dynar_new (sizeof(onelink_t), xbt_free);
2136   routing_component_rulebased_t routing = (routing_component_rulebased_t)rc;
2137
2138   xbt_dict_cursor_t c1 = NULL;
2139   char *k1, *d1;
2140
2141   //find router
2142   char *router = NULL;
2143   xbt_dict_foreach(routing->dict_processing_units, c1, k1, d1) {
2144     if (strstr (k1, "router")){
2145       router = k1;
2146     }
2147   }
2148   if (!router){
2149     xbt_die ("rulebased_get_onelink_routes works only if the AS is a cluster, sorry.");
2150   }
2151
2152   xbt_dict_foreach(routing->dict_processing_units, c1, k1, d1) {
2153     route_extended_t route = rulebased_get_route (rc, router, k1);
2154
2155     int number_of_links = xbt_dynar_length(route->generic_route.link_list);
2156     if (number_of_links != 3) {
2157       xbt_die ("rulebased_get_onelink_routes works only if the AS is a cluster, sorry.");
2158     }
2159
2160     void *link_ptr;
2161     xbt_dynar_get_cpy (route->generic_route.link_list, 2, &link_ptr);
2162     onelink_t onelink = xbt_new0 (s_onelink_t, 1);
2163     onelink->src = xbt_strdup (k1);
2164     onelink->dst = xbt_strdup (router);
2165     onelink->link_ptr = link_ptr;
2166     xbt_dynar_push (ret, &onelink);
2167   }
2168   return ret;
2169 }
2170
2171 /* Business methods */
2172 static route_extended_t rulebased_get_route(routing_component_t rc,
2173                                             const char *src,
2174                                             const char *dst)
2175 {
2176   xbt_assert1(rc && src
2177               && dst,
2178               "Invalid params for \"get_route\" function at AS \"%s\"",
2179               rc->name);
2180
2181   /* set utils vars */
2182   routing_component_rulebased_t routing =
2183       (routing_component_rulebased_t) rc;
2184
2185   int are_processing_units;
2186   xbt_dynar_t rule_list;
2187   if (xbt_dict_get_or_null(routing->dict_processing_units, src)
2188       && xbt_dict_get_or_null(routing->dict_processing_units, dst)) {
2189     are_processing_units = 1;
2190     rule_list = routing->list_route;
2191   } else if (xbt_dict_get_or_null(routing->dict_autonomous_systems, src)
2192              && xbt_dict_get_or_null(routing->dict_autonomous_systems,
2193                                      dst)) {
2194     are_processing_units = 0;
2195     rule_list = routing->list_ASroute;
2196   } else
2197     xbt_assert2(NULL,
2198                 "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",
2199                 src, dst);
2200
2201   int rc_src = -1;
2202   int rc_dst = -1;
2203   int src_length = (int) strlen(src);
2204   int dst_length = (int) strlen(dst);
2205
2206   xbt_dynar_t links_list =
2207       xbt_dynar_new(global_routing->size_of_link, NULL);
2208
2209   rule_route_t ruleroute;
2210   unsigned int cpt;
2211   int ovector_src[OVECCOUNT];
2212   int ovector_dst[OVECCOUNT];
2213   const char **list_src = NULL;
2214   const char **list_dst = NULL;
2215   xbt_dynar_foreach(rule_list, cpt, ruleroute) {
2216     rc_src =
2217         pcre_exec(ruleroute->re_src, NULL, src, src_length, 0, 0,
2218                   ovector_src, OVECCOUNT);
2219     if (rc_src >= 0) {
2220       rc_dst =
2221           pcre_exec(ruleroute->re_dst, NULL, dst, dst_length, 0, 0,
2222                     ovector_dst, OVECCOUNT);
2223       if (rc_dst >= 0) {
2224         xbt_assert1(!pcre_get_substring_list
2225                     (src, ovector_src, rc_src, &list_src),
2226                     "error solving substring list for src \"%s\"", src);
2227         xbt_assert1(!pcre_get_substring_list
2228                     (dst, ovector_dst, rc_dst, &list_dst),
2229                     "error solving substring list for src \"%s\"", dst);
2230         char *link_name;
2231         xbt_dynar_foreach(ruleroute->re_str_link, cpt, link_name) {
2232           char *new_link_name =
2233               remplace(link_name, list_src, rc_src, list_dst, rc_dst);
2234           void *link =
2235               xbt_dict_get_or_null(surf_network_model->resource_set,
2236                                    new_link_name);
2237           if (link)
2238             xbt_dynar_push(links_list, &link);
2239           else
2240             THROW1(mismatch_error, 0, "Link %s not found", new_link_name);
2241           xbt_free(new_link_name);
2242         }
2243       }
2244     }
2245     if (rc_src >= 0 && rc_dst >= 0)
2246       break;
2247   }
2248
2249   route_extended_t new_e_route = NULL;
2250   if (rc_src >= 0 && rc_dst >= 0) {
2251     new_e_route = xbt_new0(s_route_extended_t, 1);
2252     new_e_route->generic_route.link_list = links_list;
2253   } else if (!strcmp(src, dst) && are_processing_units) {
2254     new_e_route = xbt_new0(s_route_extended_t, 1);
2255     xbt_dynar_push(links_list, &(global_routing->loopback));
2256     new_e_route->generic_route.link_list = links_list;
2257   } else {
2258     xbt_dynar_free(&link_list);
2259   }
2260
2261   if (!are_processing_units && new_e_route) {
2262     rule_route_extended_t ruleroute_extended =
2263         (rule_route_extended_t) ruleroute;
2264     new_e_route->src_gateway =
2265         remplace(ruleroute_extended->re_src_gateway, list_src, rc_src,
2266                  list_dst, rc_dst);
2267     new_e_route->dst_gateway =
2268         remplace(ruleroute_extended->re_dst_gateway, list_src, rc_src,
2269                  list_dst, rc_dst);
2270   }
2271
2272   if (list_src)
2273     pcre_free_substring_list(list_src);
2274   if (list_dst)
2275     pcre_free_substring_list(list_dst);
2276
2277   return new_e_route;
2278 }
2279
2280 static route_extended_t rulebased_get_bypass_route(routing_component_t rc,
2281                                                    const char *src,
2282                                                    const char *dst)
2283 {
2284   return NULL;
2285 }
2286
2287 static void rulebased_finalize(routing_component_t rc)
2288 {
2289   routing_component_rulebased_t routing =
2290       (routing_component_rulebased_t) rc;
2291   if (routing) {
2292     xbt_dict_free(&routing->dict_processing_units);
2293     xbt_dict_free(&routing->dict_autonomous_systems);
2294     xbt_dynar_free(&routing->list_route);
2295     xbt_dynar_free(&routing->list_ASroute);
2296     /* Delete structure */
2297     xbt_free(routing);
2298   }
2299 }
2300
2301 /* Creation routing model functions */
2302 static void *model_rulebased_create(void)
2303 {
2304   routing_component_rulebased_t new_component =
2305       xbt_new0(s_routing_component_rulebased_t, 1);
2306   new_component->generic_routing.set_processing_unit =
2307       model_rulebased_set_processing_unit;
2308   new_component->generic_routing.set_autonomous_system =
2309       model_rulebased_set_autonomous_system;
2310   new_component->generic_routing.set_route = model_rulebased_set_route;
2311   new_component->generic_routing.set_ASroute = model_rulebased_set_ASroute;
2312   new_component->generic_routing.set_bypassroute =
2313       model_rulebased_set_bypassroute;
2314   new_component->generic_routing.get_onelink_routes =
2315       rulebased_get_onelink_routes;
2316   new_component->generic_routing.get_route = rulebased_get_route;
2317   new_component->generic_routing.get_bypass_route = NULL;       //rulebased_get_bypass_route;
2318   new_component->generic_routing.finalize = rulebased_finalize;
2319   /* initialization of internal structures */
2320   new_component->dict_processing_units = xbt_dict_new();
2321   new_component->dict_autonomous_systems = xbt_dict_new();
2322   new_component->list_route =
2323       xbt_dynar_new(sizeof(rule_route_t), &rule_route_free);
2324   new_component->list_ASroute =
2325       xbt_dynar_new(sizeof(rule_route_extended_t),
2326                     &rule_route_extended_free);
2327   return new_component;
2328 }
2329
2330 static void model_rulebased_load(void)
2331 {
2332   /* use "surfxml_add_callback" to add a parse function call */
2333 }
2334
2335 static void model_rulebased_unload(void)
2336 {
2337   /* use "surfxml_del_callback" to remove a parse function call */
2338 }
2339
2340 static void model_rulebased_end(void)
2341 {
2342 }
2343
2344 #endif                          /* HAVE_PCRE_LIB */
2345
2346 /* ************************************************************************** */
2347 /* ******************************* NO ROUTING ******************************* */
2348
2349 /* Routing model structure */
2350 typedef struct {
2351   s_routing_component_t generic_routing;
2352 } s_routing_component_none_t, *routing_component_none_t;
2353
2354 /* Business methods */
2355 static xbt_dynar_t none_get_onelink_routes(routing_component_t rc)
2356 {
2357   return NULL;
2358 }
2359
2360 static route_extended_t none_get_route(routing_component_t rc,
2361                                        const char *src, const char *dst)
2362 {
2363   return NULL;
2364 }
2365
2366 static route_extended_t none_get_bypass_route(routing_component_t rc,
2367                                               const char *src,
2368                                               const char *dst)
2369 {
2370   return NULL;
2371 }
2372
2373 static void none_finalize(routing_component_t rc)
2374 {
2375   xbt_free(rc);
2376 }
2377
2378 static void none_set_processing_unit(routing_component_t rc,
2379                                      const char *name)
2380 {
2381 }
2382
2383 static void none_set_autonomous_system(routing_component_t rc,
2384                                        const char *name)
2385 {
2386 }
2387
2388 /* Creation routing model functions */
2389 static void *model_none_create(void)
2390 {
2391   routing_component_none_t new_component =
2392       xbt_new0(s_routing_component_none_t, 1);
2393   new_component->generic_routing.set_processing_unit =
2394       none_set_processing_unit;
2395   new_component->generic_routing.set_autonomous_system =
2396       none_set_autonomous_system;
2397   new_component->generic_routing.set_route = NULL;
2398   new_component->generic_routing.set_ASroute = NULL;
2399   new_component->generic_routing.set_bypassroute = NULL;
2400   new_component->generic_routing.get_route = none_get_route;
2401   new_component->generic_routing.get_onelink_routes =
2402       none_get_onelink_routes;
2403   new_component->generic_routing.get_bypass_route = none_get_bypass_route;
2404   new_component->generic_routing.finalize = none_finalize;
2405   return new_component;
2406 }
2407
2408 static void model_none_load(void)
2409 {
2410 }
2411
2412 static void model_none_unload(void)
2413 {
2414 }
2415
2416 static void model_none_end(void)
2417 {
2418 }
2419
2420 /* ************************************************** */
2421 /* ********** PATERN FOR NEW ROUTING **************** */
2422
2423 /* The minimal configuration of a new routing model need the next functions,
2424  * also you need to set at the start of the file, the new model in the model
2425  * list. Remember keep the null ending of the list.
2426  */
2427 /*** Routing model structure ***/
2428 // typedef struct {
2429 //   s_routing_component_t generic_routing;
2430 //   /* things that your routing model need */
2431 // } s_routing_component_NEW_t,*routing_component_NEW_t;
2432
2433 /*** Parse routing model functions ***/
2434 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
2435 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
2436 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
2437 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
2438 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
2439
2440 /*** Business methods ***/
2441 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
2442 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
2443 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
2444
2445 /*** Creation routing model functions ***/
2446 // static void* model_NEW_create(void) {
2447 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
2448 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
2449 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
2450 //   new_component->generic_routing.set_route = model_NEW_set_route;
2451 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
2452 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
2453 //   new_component->generic_routing.get_route = NEW_get_route;
2454 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
2455 //   new_component->generic_routing.finalize = NEW_finalize;
2456 //   /* initialization of internal structures */
2457 //   return new_component;
2458 // } /* mandatory */
2459 // static void  model_NEW_load(void) {}   /* mandatory */
2460 // static void  model_NEW_unload(void) {} /* mandatory */
2461 // static void  model_NEW_end(void) {}    /* mandatory */
2462
2463 /* ************************************************************************** */
2464 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
2465
2466 static void generic_set_processing_unit(routing_component_t rc,
2467                                         const char *name)
2468 {
2469   DEBUG1("Load process unit \"%s\"", name);
2470   model_type_t modeltype = rc->routing;
2471   int *id = xbt_new0(int, 1);
2472   xbt_dict_t _to_index;
2473   if (modeltype == &routing_models[SURF_MODEL_FULL])
2474     _to_index = ((routing_component_full_t) rc)->to_index;
2475
2476   else if (modeltype == &routing_models[SURF_MODEL_FLOYD])
2477     _to_index = ((routing_component_floyd_t) rc)->to_index;
2478
2479   else if (modeltype == &routing_models[SURF_MODEL_DIJKSTRA] ||
2480            modeltype == &routing_models[SURF_MODEL_DIJKSTRACACHE])
2481     _to_index = ((routing_component_dijkstra_t) rc)->to_index;
2482
2483   else
2484     xbt_die("\"generic_set_processing_unit\" not supported");
2485   *id = xbt_dict_length(_to_index);
2486   xbt_dict_set(_to_index, name, id, xbt_free);
2487 }
2488
2489 static void generic_set_autonomous_system(routing_component_t rc,
2490                                           const char *name)
2491 {
2492   DEBUG1("Load Autonomous system \"%s\"", name);
2493   model_type_t modeltype = rc->routing;
2494   int *id = xbt_new0(int, 1);
2495   xbt_dict_t _to_index;
2496   if (modeltype == &routing_models[SURF_MODEL_FULL])
2497     _to_index = ((routing_component_full_t) rc)->to_index;
2498
2499   else if (modeltype == &routing_models[SURF_MODEL_FLOYD])
2500     _to_index = ((routing_component_floyd_t) rc)->to_index;
2501
2502   else if (modeltype == &routing_models[SURF_MODEL_DIJKSTRA] ||
2503            modeltype == &routing_models[SURF_MODEL_DIJKSTRACACHE])
2504     _to_index = ((routing_component_dijkstra_t) rc)->to_index;
2505
2506   else
2507     xbt_die("\"generic_set_autonomous_system\" not supported");
2508   *id = xbt_dict_length(_to_index);
2509   xbt_dict_set(_to_index, name, id, xbt_free);
2510 }
2511
2512 static void generic_set_route(routing_component_t rc, const char *src,
2513                               const char *dst, route_t route)
2514 {
2515   DEBUG2("Load Route from \"%s\" to \"%s\"", src, dst);
2516   model_type_t modeltype = rc->routing;
2517   xbt_dict_t _parse_routes;
2518   xbt_dict_t _to_index;
2519   char *route_name;
2520   int *src_id, *dst_id;
2521
2522   if (modeltype == &routing_models[SURF_MODEL_FULL]) {
2523     _parse_routes = ((routing_component_full_t) rc)->parse_routes;
2524     _to_index = ((routing_component_full_t) rc)->to_index;
2525
2526   } else if (modeltype == &routing_models[SURF_MODEL_FLOYD]) {
2527     _parse_routes = ((routing_component_floyd_t) rc)->parse_routes;
2528     _to_index = ((routing_component_floyd_t) rc)->to_index;
2529
2530   } else if (modeltype == &routing_models[SURF_MODEL_DIJKSTRA] ||
2531              modeltype == &routing_models[SURF_MODEL_DIJKSTRACACHE]) {
2532     _parse_routes = ((routing_component_dijkstra_t) rc)->parse_routes;
2533     _to_index = ((routing_component_dijkstra_t) rc)->to_index;
2534
2535   } else
2536     xbt_die("\"generic_set_route\" not supported");
2537
2538   src_id = xbt_dict_get_or_null(_to_index, src);
2539   dst_id = xbt_dict_get_or_null(_to_index, dst);
2540
2541   xbt_assert2(src_id
2542               && dst_id, "Network elements %s or %s not found", src, dst);
2543   route_name = bprintf("%d#%d", *src_id, *dst_id);
2544
2545   xbt_assert2(xbt_dynar_length(route->link_list) > 0,
2546               "Invalid count of links, must be greater than zero (%s,%s)",
2547               src, dst);
2548   xbt_assert2(!xbt_dict_get_or_null(_parse_routes, route_name),
2549               "The route between \"%s\" and \"%s\" already exist", src,
2550               dst);
2551
2552   xbt_dict_set(_parse_routes, route_name, route, NULL);
2553   xbt_free(route_name);
2554 }
2555
2556 static void generic_set_ASroute(routing_component_t rc, const char *src,
2557                                 const char *dst, route_extended_t e_route)
2558 {
2559   DEBUG4("Load ASroute from \"%s(%s)\" to \"%s(%s)\"", src,
2560          e_route->src_gateway, dst, e_route->dst_gateway);
2561   model_type_t modeltype = rc->routing;
2562   xbt_dict_t _parse_routes;
2563   xbt_dict_t _to_index;
2564   char *route_name;
2565   int *src_id, *dst_id;
2566
2567   if (modeltype == &routing_models[SURF_MODEL_FULL]) {
2568     _parse_routes = ((routing_component_full_t) rc)->parse_routes;
2569     _to_index = ((routing_component_full_t) rc)->to_index;
2570
2571   } else if (modeltype == &routing_models[SURF_MODEL_FLOYD]) {
2572     _parse_routes = ((routing_component_floyd_t) rc)->parse_routes;
2573     _to_index = ((routing_component_floyd_t) rc)->to_index;
2574
2575   } else if (modeltype == &routing_models[SURF_MODEL_DIJKSTRA] ||
2576              modeltype == &routing_models[SURF_MODEL_DIJKSTRACACHE]) {
2577     _parse_routes = ((routing_component_dijkstra_t) rc)->parse_routes;
2578     _to_index = ((routing_component_dijkstra_t) rc)->to_index;
2579
2580   } else
2581     xbt_die("\"generic_set_route\" not supported");
2582
2583   src_id = xbt_dict_get_or_null(_to_index, src);
2584   dst_id = xbt_dict_get_or_null(_to_index, dst);
2585
2586   xbt_assert2(src_id
2587               && dst_id, "Network elements %s or %s not found", src, dst);
2588   route_name = bprintf("%d#%d", *src_id, *dst_id);
2589
2590   xbt_assert2(xbt_dynar_length(e_route->generic_route.link_list) > 0,
2591               "Invalid count of links, must be greater than zero (%s,%s)",
2592               src, dst);
2593   xbt_assert4(!xbt_dict_get_or_null(_parse_routes, route_name),
2594               "The route between \"%s\"(\"%s\") and \"%s\"(\"%s\") already exist",
2595               src, e_route->src_gateway, dst, e_route->dst_gateway);
2596
2597   xbt_dict_set(_parse_routes, route_name, e_route, NULL);
2598   xbt_free(route_name);
2599 }
2600
2601 static void generic_set_bypassroute(routing_component_t rc,
2602                                     const char *src, const char *dst,
2603                                     route_extended_t e_route)
2604 {
2605   DEBUG2("Load bypassRoute from \"%s\" to \"%s\"", src, dst);
2606   model_type_t modeltype = rc->routing;
2607   xbt_dict_t dict_bypassRoutes;
2608   char *route_name;
2609   if (modeltype == &routing_models[SURF_MODEL_FULL]) {
2610     dict_bypassRoutes = ((routing_component_full_t) rc)->bypassRoutes;
2611   } else if (modeltype == &routing_models[SURF_MODEL_FLOYD]) {
2612     dict_bypassRoutes = ((routing_component_floyd_t) rc)->bypassRoutes;
2613   } else if (modeltype == &routing_models[SURF_MODEL_DIJKSTRA] ||
2614              modeltype == &routing_models[SURF_MODEL_DIJKSTRACACHE]) {
2615     dict_bypassRoutes = ((routing_component_dijkstra_t) rc)->bypassRoutes;
2616   } else
2617     xbt_die("\"generic_set_bypassroute\" not supported");
2618   route_name = bprintf("%s#%s", src, dst);
2619   xbt_assert2(xbt_dynar_length(e_route->generic_route.link_list) > 0,
2620               "Invalid count of links, must be greater than zero (%s,%s)",
2621               src, dst);
2622   xbt_assert4(!xbt_dict_get_or_null(dict_bypassRoutes, route_name),
2623               "The bypass route between \"%s\"(\"%s\") and \"%s\"(\"%s\") already exist",
2624               src, e_route->src_gateway, dst, e_route->dst_gateway);
2625
2626   route_extended_t new_e_route =
2627       generic_new_extended_route(SURF_ROUTING_RECURSIVE, e_route, 0);
2628   xbt_dynar_free(&(e_route->generic_route.link_list));
2629   xbt_free(e_route);
2630
2631   xbt_dict_set(dict_bypassRoutes, route_name, new_e_route,
2632                (void (*)(void *)) generic_free_extended_route);
2633   xbt_free(route_name);
2634 }
2635
2636 /* ************************************************************************** */
2637 /* *********************** GENERIC BUSINESS METHODS ************************* */
2638
2639 static xbt_dynar_t generic_get_onelink_routes(routing_component_t rc)
2640 {
2641   xbt_die("\"generic_get_onelink_routes\" not implemented yet");
2642 }
2643
2644 static route_extended_t generic_get_bypassroute(routing_component_t rc,
2645                                                 const char *src,
2646                                                 const char *dst)
2647 {
2648   model_type_t modeltype = rc->routing;
2649   xbt_dict_t dict_bypassRoutes;
2650
2651   if (modeltype == &routing_models[SURF_MODEL_FULL]) {
2652     dict_bypassRoutes = ((routing_component_full_t) rc)->bypassRoutes;
2653   } else if (modeltype == &routing_models[SURF_MODEL_FLOYD]) {
2654     dict_bypassRoutes = ((routing_component_floyd_t) rc)->bypassRoutes;
2655   } else if (modeltype == &routing_models[SURF_MODEL_DIJKSTRA] ||
2656              modeltype == &routing_models[SURF_MODEL_DIJKSTRACACHE]) {
2657     dict_bypassRoutes = ((routing_component_dijkstra_t) rc)->bypassRoutes;
2658   } else
2659     xbt_die("\"generic_get_bypassroute\" not supported");
2660
2661
2662   routing_component_t src_as, dst_as;
2663   int index_src, index_dst;
2664   xbt_dynar_t path_src = NULL;
2665   xbt_dynar_t path_dst = NULL;
2666   routing_component_t current = NULL;
2667   routing_component_t *current_src = NULL;
2668   routing_component_t *current_dst = NULL;
2669
2670   /* (1) find the as where the src and dst are located */
2671   src_as = ((network_element_info_t)
2672             xbt_dict_get_or_null(global_routing->where_network_elements,
2673                                  src))->rc_component;
2674   dst_as = ((network_element_info_t)
2675             xbt_dict_get_or_null(global_routing->where_network_elements,
2676                                  dst))->rc_component;
2677   xbt_assert2(src_as
2678               && dst_as,
2679               "Ask for route \"from\"(%s) or \"to\"(%s) no found", src,
2680               dst);
2681
2682   /* (2) find the path to the root routing component */
2683   path_src = xbt_dynar_new(sizeof(routing_component_t), NULL);
2684   current = src_as;
2685   while (current != NULL) {
2686     xbt_dynar_push(path_src, &current);
2687     current = current->routing_father;
2688   }
2689   path_dst = xbt_dynar_new(sizeof(routing_component_t), NULL);
2690   current = dst_as;
2691   while (current != NULL) {
2692     xbt_dynar_push(path_dst, &current);
2693     current = current->routing_father;
2694   }
2695
2696   /* (3) find the common father */
2697   index_src = (path_src->used) - 1;
2698   index_dst = (path_dst->used) - 1;
2699   current_src = xbt_dynar_get_ptr(path_src, index_src);
2700   current_dst = xbt_dynar_get_ptr(path_dst, index_dst);
2701   while (index_src >= 0 && index_dst >= 0 && *current_src == *current_dst) {
2702     routing_component_t *tmp_src, *tmp_dst;
2703     tmp_src = xbt_dynar_pop_ptr(path_src);
2704     tmp_dst = xbt_dynar_pop_ptr(path_dst);
2705     index_src--;
2706     index_dst--;
2707     current_src = xbt_dynar_get_ptr(path_src, index_src);
2708     current_dst = xbt_dynar_get_ptr(path_dst, index_dst);
2709   }
2710
2711   int max_index_src = (path_src->used) - 1;
2712   int max_index_dst = (path_dst->used) - 1;
2713
2714   int max_index = max(max_index_src, max_index_dst);
2715   int i, max;
2716
2717   route_extended_t e_route_bypass = NULL;
2718
2719   for (max = 0; max <= max_index; max++) {
2720     for (i = 0; i < max; i++) {
2721       if (i <= max_index_src && max <= max_index_dst) {
2722         char *route_name = bprintf("%s#%s",
2723                                    (*(routing_component_t *)
2724                                     (xbt_dynar_get_ptr
2725                                      (path_src, i)))->name,
2726                                    (*(routing_component_t *)
2727                                     (xbt_dynar_get_ptr
2728                                      (path_dst, max)))->name);
2729         e_route_bypass =
2730             xbt_dict_get_or_null(dict_bypassRoutes, route_name);
2731         xbt_free(route_name);
2732       }
2733       if (e_route_bypass)
2734         break;
2735       if (max <= max_index_src && i <= max_index_dst) {
2736         char *route_name = bprintf("%s#%s",
2737                                    (*(routing_component_t *)
2738                                     (xbt_dynar_get_ptr
2739                                      (path_src, max)))->name,
2740                                    (*(routing_component_t *)
2741                                     (xbt_dynar_get_ptr
2742                                      (path_dst, i)))->name);
2743         e_route_bypass =
2744             xbt_dict_get_or_null(dict_bypassRoutes, route_name);
2745         xbt_free(route_name);
2746       }
2747       if (e_route_bypass)
2748         break;
2749     }
2750
2751     if (e_route_bypass)
2752       break;
2753
2754     if (max <= max_index_src && max <= max_index_dst) {
2755       char *route_name = bprintf("%s#%s",
2756                                  (*(routing_component_t *)
2757                                   (xbt_dynar_get_ptr
2758                                    (path_src, max)))->name,
2759                                  (*(routing_component_t *)
2760                                   (xbt_dynar_get_ptr
2761                                    (path_dst, max)))->name);
2762       e_route_bypass = xbt_dict_get_or_null(dict_bypassRoutes, route_name);
2763       xbt_free(route_name);
2764     }
2765     if (e_route_bypass)
2766       break;
2767   }
2768
2769   xbt_dynar_free(&path_src);
2770   xbt_dynar_free(&path_dst);
2771
2772   route_extended_t new_e_route = NULL;
2773
2774   if (e_route_bypass) {
2775     void *link;
2776     unsigned int cpt = 0;
2777     new_e_route = xbt_new0(s_route_extended_t, 1);
2778     new_e_route->src_gateway = xbt_strdup(e_route_bypass->src_gateway);
2779     new_e_route->dst_gateway = xbt_strdup(e_route_bypass->dst_gateway);
2780     new_e_route->generic_route.link_list =
2781         xbt_dynar_new(global_routing->size_of_link, NULL);
2782     xbt_dynar_foreach(e_route_bypass->generic_route.link_list, cpt, link) {
2783       xbt_dynar_push(new_e_route->generic_route.link_list, &link);
2784     }
2785   }
2786
2787   return new_e_route;
2788 }
2789
2790 /* ************************************************************************** */
2791 /* ************************* GENERIC AUX FUNCTIONS ************************** */
2792
2793 static route_extended_t
2794 generic_new_extended_route(e_surf_routing_hierarchy_t hierarchy,
2795                            void *data, int order)
2796 {
2797
2798   char *link_name;
2799   route_extended_t e_route, new_e_route;
2800   route_t route;
2801   unsigned int cpt;
2802   xbt_dynar_t links, links_id;
2803
2804   new_e_route = xbt_new0(s_route_extended_t, 1);
2805   new_e_route->generic_route.link_list =
2806       xbt_dynar_new(global_routing->size_of_link, NULL);
2807   new_e_route->src_gateway = NULL;
2808   new_e_route->dst_gateway = NULL;
2809
2810   xbt_assert0(hierarchy == SURF_ROUTING_BASE
2811               || hierarchy == SURF_ROUTING_RECURSIVE,
2812               "the hierarchy type is not defined");
2813
2814   if (hierarchy == SURF_ROUTING_BASE) {
2815
2816     route = (route_t) data;
2817     links = route->link_list;
2818
2819   } else if (hierarchy == SURF_ROUTING_RECURSIVE) {
2820
2821     e_route = (route_extended_t) data;
2822     xbt_assert0(e_route->src_gateway
2823                 && e_route->dst_gateway, "bad gateway, is null");
2824     links = e_route->generic_route.link_list;
2825
2826     /* remeber not erase the gateway names */
2827     new_e_route->src_gateway = e_route->src_gateway;
2828     new_e_route->dst_gateway = e_route->dst_gateway;
2829   }
2830
2831   links_id = new_e_route->generic_route.link_list;
2832
2833   xbt_dynar_foreach(links, cpt, link_name) {
2834
2835     void *link =
2836         xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
2837     if (link) {
2838       if (order)
2839         xbt_dynar_push(links_id, &link);
2840       else
2841         xbt_dynar_unshift(links_id, &link);
2842     } else
2843       THROW1(mismatch_error, 0, "Link %s not found", link_name);
2844   }
2845
2846   return new_e_route;
2847 }
2848
2849 static void generic_free_route(route_t route)
2850 {
2851   if (route) {
2852     xbt_dynar_free(&(route->link_list));
2853     xbt_free(route);
2854   }
2855 }
2856
2857 static void generic_free_extended_route(route_extended_t e_route)
2858 {
2859   if (e_route) {
2860     xbt_dynar_free(&(e_route->generic_route.link_list));
2861     if (e_route->src_gateway)
2862       xbt_free(e_route->src_gateway);
2863     if (e_route->dst_gateway)
2864       xbt_free(e_route->dst_gateway);
2865     xbt_free(e_route);
2866   }
2867 }
2868
2869 static routing_component_t generic_as_exist(routing_component_t find_from,
2870                                             routing_component_t to_find)
2871 {
2872   //return to_find; // FIXME: BYPASSERROR OF FOREACH WITH BREAK
2873   xbt_dict_cursor_t cursor = NULL;
2874   char *key;
2875   int found = 0;
2876   routing_component_t elem;
2877   xbt_dict_foreach(find_from->routing_sons, cursor, key, elem) {
2878     if (to_find == elem || generic_as_exist(elem, to_find)) {
2879       found = 1;
2880       break;
2881     }
2882   }
2883   if (found)
2884     return to_find;
2885   return NULL;
2886 }
2887
2888 static routing_component_t
2889 generic_autonomous_system_exist(routing_component_t rc, char *element)
2890 {
2891   //return rc; // FIXME: BYPASSERROR OF FOREACH WITH BREAK
2892   routing_component_t element_as, result, elem;
2893   xbt_dict_cursor_t cursor = NULL;
2894   char *key;
2895   element_as = ((network_element_info_t)
2896                 xbt_dict_get_or_null
2897                 (global_routing->where_network_elements,
2898                  element))->rc_component;
2899   result = ((routing_component_t) - 1);
2900   if (element_as != rc)
2901     result = generic_as_exist(rc, element_as);
2902
2903   int found = 0;
2904   if (result) {
2905     xbt_dict_foreach(element_as->routing_sons, cursor, key, elem) {
2906       found = !strcmp(elem->name, element);
2907       if (found)
2908         break;
2909     }
2910     if (found)
2911       return element_as;
2912   }
2913   return NULL;
2914 }
2915
2916 static routing_component_t
2917 generic_processing_units_exist(routing_component_t rc, char *element)
2918 {
2919   routing_component_t element_as;
2920   element_as = ((network_element_info_t)
2921                 xbt_dict_get_or_null
2922                 (global_routing->where_network_elements,
2923                  element))->rc_component;
2924   if (element_as == rc)
2925     return element_as;
2926   return generic_as_exist(rc, element_as);
2927 }
2928
2929 static void generic_src_dst_check(routing_component_t rc, const char *src,
2930                                   const char *dst)
2931 {
2932
2933   routing_component_t src_as = ((network_element_info_t)
2934                                 xbt_dict_get_or_null
2935                                 (global_routing->where_network_elements,
2936                                  src))->rc_component;
2937   routing_component_t dst_as = ((network_element_info_t)
2938                                 xbt_dict_get_or_null
2939                                 (global_routing->where_network_elements,
2940                                  dst))->rc_component;
2941
2942   xbt_assert3(src_as != NULL && dst_as != NULL,
2943               "Ask for route \"from\"(%s) or \"to\"(%s) no found at AS \"%s\"",
2944               src, dst, rc->name);
2945   xbt_assert4(src_as == dst_as,
2946               "The src(%s in %s) and dst(%s in %s) are in differents AS",
2947               src, src_as->name, dst, dst_as->name);
2948   xbt_assert2(rc == dst_as,
2949               "The routing component of src and dst is not the same as the network elements belong (%s==%s)",
2950               rc->name, dst_as->name);
2951 }
2952
2953 static void parse_Sconfig(void)
2954 {
2955   //TODO
2956   DEBUG0("WARNING tag config not yet implemented.");
2957 }
2958
2959 static void routing_full_parse_Scluster(void)
2960 {
2961   static int AX_ptr = 0;
2962
2963   char *cluster_id = A_surfxml_cluster_id;
2964   char *cluster_prefix = A_surfxml_cluster_prefix;
2965   char *cluster_suffix = A_surfxml_cluster_suffix;
2966   char *cluster_radical = A_surfxml_cluster_radical;
2967   char *cluster_power = A_surfxml_cluster_power;
2968   char *cluster_bw = A_surfxml_cluster_bw;
2969   char *cluster_lat = A_surfxml_cluster_lat;
2970   char *cluster_bb_bw = A_surfxml_cluster_bb_bw;
2971   char *cluster_bb_lat = A_surfxml_cluster_bb_lat;
2972   char *host_id, *groups, *link_id;
2973   char *router_id, *link_router, *link_backbone, *route_src_dst;
2974   unsigned int iter;
2975   int start, end, i;
2976   xbt_dynar_t radical_elements;
2977   xbt_dynar_t radical_ends;
2978 #ifndef HAVE_PCRE_LIB
2979   xbt_dynar_t tab_elements_num = xbt_dynar_new(sizeof(int), NULL);
2980   char *route_src, *route_dst;
2981   int j;
2982 #endif
2983
2984   static unsigned int surfxml_buffer_stack_stack_ptr = 1;
2985   static unsigned int surfxml_buffer_stack_stack[1024];
2986
2987   surfxml_buffer_stack_stack[0] = 0;
2988
2989   surfxml_bufferstack_push(1);
2990
2991   SURFXML_BUFFER_SET(AS_id, cluster_id);
2992 #ifdef HAVE_PCRE_LIB
2993   SURFXML_BUFFER_SET(AS_routing, "RuleBased");
2994   DEBUG1("<AS id=\"%s\"\trouting=\"RuleBased\">", cluster_id);
2995 #else
2996   SURFXML_BUFFER_SET(AS_routing, "Full");
2997   DEBUG1("<AS id=\"%s\"\trouting=\"Full\">", cluster_id);
2998 #endif
2999   SURFXML_START_TAG(AS);
3000
3001   radical_elements = xbt_str_split(cluster_radical, ",");
3002   xbt_dynar_foreach(radical_elements, iter, groups) {
3003     radical_ends = xbt_str_split(groups, "-");
3004     switch (xbt_dynar_length(radical_ends)) {
3005     case 1:
3006       surf_parse_get_int(&start,
3007                          xbt_dynar_get_as(radical_ends, 0, char *));
3008       host_id = bprintf("%s%d%s", cluster_prefix, start, cluster_suffix);
3009 #ifndef HAVE_PCRE_LIB
3010       xbt_dynar_push_as(tab_elements_num, int, start);
3011 #endif
3012       link_id = bprintf("%s_link_%d", cluster_id, start);
3013
3014       DEBUG2("<host\tid=\"%s\"\tpower=\"%s\"/>", host_id, cluster_power);
3015       SURFXML_BUFFER_SET(host_id, host_id);
3016       SURFXML_BUFFER_SET(host_power, cluster_power);
3017       SURFXML_BUFFER_SET(host_availability, "1.0");
3018       SURFXML_BUFFER_SET(host_availability_file, "");
3019       A_surfxml_host_state = A_surfxml_host_state_ON;
3020       SURFXML_BUFFER_SET(host_state_file, "");
3021       SURFXML_START_TAG(host);
3022       SURFXML_END_TAG(host);
3023
3024       DEBUG3("<link\tid=\"%s\"\tbw=\"%s\"\tlat=\"%s\"/>", link_id,
3025              cluster_bw, cluster_lat);
3026       SURFXML_BUFFER_SET(link_id, link_id);
3027       SURFXML_BUFFER_SET(link_bandwidth, cluster_bw);
3028       SURFXML_BUFFER_SET(link_latency, cluster_lat);
3029       SURFXML_BUFFER_SET(link_bandwidth_file, "");
3030       SURFXML_BUFFER_SET(link_latency_file, "");
3031       A_surfxml_link_state = A_surfxml_link_state_ON;
3032       SURFXML_BUFFER_SET(link_state_file, "");
3033       A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
3034       SURFXML_START_TAG(link);
3035       SURFXML_END_TAG(link);
3036
3037       break;
3038
3039     case 2:
3040
3041       surf_parse_get_int(&start,
3042                          xbt_dynar_get_as(radical_ends, 0, char *));
3043       surf_parse_get_int(&end, xbt_dynar_get_as(radical_ends, 1, char *));
3044       DEBUG2("Create hosts and links from %d to %d", start, end);
3045       for (i = start; i <= end; i++) {
3046         host_id = bprintf("%s%d%s", cluster_prefix, i, cluster_suffix);
3047 #ifndef HAVE_PCRE_LIB
3048         xbt_dynar_push_as(tab_elements_num, int, i);
3049 #endif
3050         link_id = bprintf("%s_link_%d", cluster_id, i);
3051
3052         DEBUG2("<host\tid=\"%s\"\tpower=\"%s\"/>", host_id, cluster_power);
3053         SURFXML_BUFFER_SET(host_id, host_id);
3054         SURFXML_BUFFER_SET(host_power, cluster_power);
3055         SURFXML_BUFFER_SET(host_availability, "1.0");
3056         SURFXML_BUFFER_SET(host_availability_file, "");
3057         A_surfxml_host_state = A_surfxml_host_state_ON;
3058         SURFXML_BUFFER_SET(host_state_file, "");
3059         SURFXML_START_TAG(host);
3060         SURFXML_END_TAG(host);
3061
3062         DEBUG3("<link\tid=\"%s\"\tbw=\"%s\"\tlat=\"%s\"/>", link_id,
3063                cluster_bw, cluster_lat);
3064         SURFXML_BUFFER_SET(link_id, link_id);
3065         SURFXML_BUFFER_SET(link_bandwidth, cluster_bw);
3066         SURFXML_BUFFER_SET(link_latency, cluster_lat);
3067         SURFXML_BUFFER_SET(link_bandwidth_file, "");
3068         SURFXML_BUFFER_SET(link_latency_file, "");
3069         A_surfxml_link_state = A_surfxml_link_state_ON;
3070         SURFXML_BUFFER_SET(link_state_file, "");
3071         A_surfxml_link_sharing_policy =
3072             A_surfxml_link_sharing_policy_SHARED;
3073         SURFXML_START_TAG(link);
3074         SURFXML_END_TAG(link);
3075       }
3076       break;
3077
3078     default:
3079       DEBUG0("Malformed radical");
3080     }
3081
3082     xbt_dynar_free(&radical_ends);
3083   }
3084
3085   DEBUG0(" ");
3086   router_id =
3087       bprintf("%s%s_router%s", cluster_prefix, cluster_id,
3088               cluster_suffix);
3089   link_router = bprintf("%s_link_%s_router", cluster_id, cluster_id);
3090   link_backbone = bprintf("%s_backbone", cluster_id);
3091
3092   DEBUG1("<router id=\"%s\"/>", router_id);
3093   SURFXML_BUFFER_SET(router_id, router_id);;
3094   SURFXML_START_TAG(router);
3095   SURFXML_END_TAG(router);
3096
3097   DEBUG3("<link\tid=\"%s\"\tbw=\"%s\"\tlat=\"%s\"/>", link_router,
3098          cluster_bw, cluster_lat);
3099   SURFXML_BUFFER_SET(link_id, link_router);
3100   SURFXML_BUFFER_SET(link_bandwidth, cluster_bw);
3101   SURFXML_BUFFER_SET(link_latency, cluster_lat);
3102   SURFXML_BUFFER_SET(link_bandwidth_file, "");
3103   SURFXML_BUFFER_SET(link_latency_file, "");
3104   A_surfxml_link_state = A_surfxml_link_state_ON;
3105   SURFXML_BUFFER_SET(link_state_file, "");
3106   A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
3107   SURFXML_START_TAG(link);
3108   SURFXML_END_TAG(link);
3109
3110   DEBUG3("<link\tid=\"%s\"\tbw=\"%s\"\tlat=\"%s\"/>", link_backbone,
3111          cluster_bb_bw, cluster_bb_lat);
3112   SURFXML_BUFFER_SET(link_id, link_backbone);
3113   SURFXML_BUFFER_SET(link_bandwidth, cluster_bb_bw);
3114   SURFXML_BUFFER_SET(link_latency, cluster_bb_lat);
3115   SURFXML_BUFFER_SET(link_bandwidth_file, "");
3116   SURFXML_BUFFER_SET(link_latency_file, "");
3117   A_surfxml_link_state = A_surfxml_link_state_ON;
3118   SURFXML_BUFFER_SET(link_state_file, "");
3119   A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
3120   SURFXML_START_TAG(link);
3121   SURFXML_END_TAG(link);
3122
3123   char *new_suffix = bprintf("%s", "");
3124
3125   radical_elements = xbt_str_split(cluster_suffix, ".");
3126   xbt_dynar_foreach(radical_elements, iter, groups) {
3127     if (strcmp(groups, "")) {
3128       new_suffix = bprintf("%s\\.%s", new_suffix, groups);
3129     }
3130   }
3131   route_src_dst = bprintf("%s(.*)%s", cluster_prefix, new_suffix);
3132
3133   DEBUG0(" ");
3134
3135 #ifdef HAVE_PCRE_LIB
3136
3137   DEBUG2("<route\tsrc=\"%s\"\tdst=\"%s\">", route_src_dst, route_src_dst);
3138   SURFXML_BUFFER_SET(route_src, route_src_dst);
3139   SURFXML_BUFFER_SET(route_dst, route_src_dst);
3140   SURFXML_START_TAG(route);
3141
3142   DEBUG1("<link:ctn\tid=\"%s_link_$1src\"/>", cluster_id);
3143   SURFXML_BUFFER_SET(link_ctn_id, bprintf("%s_link_$1src", cluster_id));
3144   SURFXML_START_TAG(link_ctn);
3145   SURFXML_END_TAG(link_ctn);
3146
3147   DEBUG1("<link:ctn\tid=\"%s_backbone\"/>", cluster_id);
3148   SURFXML_BUFFER_SET(link_ctn_id, bprintf("%s_backbone", cluster_id));
3149   SURFXML_START_TAG(link_ctn);
3150   SURFXML_END_TAG(link_ctn);
3151
3152   DEBUG1("<link:ctn\tid=\"%s_link_$1dst\"/>", cluster_id);
3153   SURFXML_BUFFER_SET(link_ctn_id, bprintf("%s_link_$1dst", cluster_id));
3154   SURFXML_START_TAG(link_ctn);
3155   SURFXML_END_TAG(link_ctn);
3156
3157   DEBUG0("</route>");
3158   SURFXML_END_TAG(route);
3159 #else
3160   for (i = 0; i <= xbt_dynar_length(tab_elements_num); i++) {
3161     for (j = 0; j <= xbt_dynar_length(tab_elements_num); j++) {
3162       if (i == xbt_dynar_length(tab_elements_num)) {
3163         route_src = router_id;
3164       } else {
3165         route_src =
3166             bprintf("%s%d%s", cluster_prefix,
3167                     xbt_dynar_get_as(tab_elements_num, i, int),
3168                     cluster_suffix);
3169       }
3170
3171       if (j == xbt_dynar_length(tab_elements_num)) {
3172         route_dst = router_id;
3173       } else {
3174         route_dst =
3175             bprintf("%s%d%s", cluster_prefix,
3176                     xbt_dynar_get_as(tab_elements_num, j, int),
3177                     cluster_suffix);
3178       }
3179
3180       DEBUG2("<route\tsrc=\"%s\"\tdst=\"%s\">", route_src, route_dst);
3181       SURFXML_BUFFER_SET(route_src, route_src);
3182       SURFXML_BUFFER_SET(route_dst, route_dst);
3183       SURFXML_START_TAG(route);
3184
3185       if (i == xbt_dynar_length(tab_elements_num)) {
3186         route_src = link_router;
3187       } else {
3188         route_src =
3189             bprintf("%s_link_%d", cluster_id,
3190                     xbt_dynar_get_as(tab_elements_num, i, int));
3191       }
3192
3193       if (j == xbt_dynar_length(tab_elements_num)) {
3194         route_dst = link_router;
3195       } else {
3196         route_dst =
3197             bprintf("%s_link_%d", cluster_id,
3198                     xbt_dynar_get_as(tab_elements_num, j, int));
3199       }
3200
3201       DEBUG1("<link:ctn\tid=\"%s\"/>", route_src);
3202       SURFXML_BUFFER_SET(link_ctn_id, route_src);
3203       SURFXML_START_TAG(link_ctn);
3204       SURFXML_END_TAG(link_ctn);
3205
3206       DEBUG1("<link:ctn\tid=\"%s_backbone\"/>", cluster_id);
3207       SURFXML_BUFFER_SET(link_ctn_id, bprintf("%s_backbone", cluster_id));
3208       SURFXML_START_TAG(link_ctn);
3209       SURFXML_END_TAG(link_ctn);
3210
3211       DEBUG1("<link:ctn\tid=\"%s\"/>", route_dst);
3212       SURFXML_BUFFER_SET(link_ctn_id, route_dst);
3213       SURFXML_START_TAG(link_ctn);
3214       SURFXML_END_TAG(link_ctn);
3215
3216       DEBUG0("</route>");
3217       SURFXML_END_TAG(route);
3218     }
3219   }
3220   xbt_dynar_free(&tab_elements_num);
3221 #endif
3222
3223   DEBUG0("</AS>");
3224   SURFXML_END_TAG(AS);
3225   DEBUG0(" ");
3226
3227   surfxml_bufferstack_pop(1);
3228 }
3229
3230 /*
3231  * New methods to init the routing model component from the lua script
3232  */
3233
3234 /*
3235  * calling parse_S_AS_lua with lua values
3236  */
3237 void routing_AS_init(const char *AS_id, const char *AS_routing)
3238 {
3239   parse_S_AS_lua((char *) AS_id, (char *) AS_routing);
3240 }
3241
3242 /*
3243  * calling parse_E_AS_lua to fisnish the creation of routing component
3244  */
3245 void routing_AS_end(const char *AS_id)
3246 {
3247   parse_E_AS_lua((char *) AS_id);
3248 }
3249
3250 /*
3251  * add a host to the network element list
3252  */
3253
3254 void routing_add_host(const char *host_id)
3255 {
3256   parse_S_host_lua((char *) host_id);
3257 }
3258
3259 /*
3260  * Set a new link on the actual list of link for a route or ASroute
3261  */
3262 void routing_add_link(const char *link_id)
3263 {
3264   parse_E_link_c_ctn_new_elem_lua((char *) link_id);
3265 }
3266
3267 /*
3268  *Set the endpoints for a route
3269  */
3270 void routing_set_route(const char *src_id, const char *dst_id)
3271 {
3272   parse_S_route_new_and_endpoints_lua((char *) src_id, (char *) dst_id);
3273 }
3274
3275 /*
3276  * Store the route by calling parse_E_route_store_route
3277  */
3278 void routing_store_route(void)
3279 {
3280   parse_E_route_store_route();
3281 }