src/surf/surf_routing.c

   1 /* Copyright (c) 2009, 2010, 2011. 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 #include <pcre.h>               /* regular expression library */
   8
   9 #include "simgrid/platf_interface.h" // platform creation API internal interface
  10
  11 #include "surf_routing_private.h"
  12 #include "surf/surf_routing.h"
  13 #include "surf/surfxml_parse_values.h"
  14
  15 xbt_lib_t host_lib;
  16 int ROUTING_HOST_LEVEL; //Routing level
  17 int     SURF_CPU_LEVEL;         //Surf cpu level
  18 int SURF_WKS_LEVEL;             //Surf workstation level
  19 int SIMIX_HOST_LEVEL;   //Simix level
  20 int     MSG_HOST_LEVEL;         //Msg level
  21 int     SD_HOST_LEVEL;          //Simdag level
  22 int     COORD_HOST_LEVEL;       //Coordinates level
  23 int NS3_HOST_LEVEL;             //host node for ns3
  24
  25 xbt_lib_t link_lib;
  26 int SD_LINK_LEVEL;              //Simdag level
  27 int SURF_LINK_LEVEL;    //Surf level
  28 int NS3_LINK_LEVEL;             //link for ns3
  29
  30 xbt_lib_t as_router_lib;
  31 int ROUTING_ASR_LEVEL;  //Routing level
  32 int COORD_ASR_LEVEL;    //Coordinates level
  33 int NS3_ASR_LEVEL;              //host node for ns3
  34
  35 static xbt_dict_t patterns = NULL;
  36 static xbt_dict_t random_value = NULL;
  37
  38 /* Global vars */
  39 routing_global_t global_routing = NULL;
  40 routing_component_t current_routing = NULL;
  41 model_type_t current_routing_model = NULL;
  42
  43 /* global parse functions */
  44 xbt_dynar_t link_list = NULL;    /* temporary store of current list link of a route */
  45 static const char *src = NULL;        /* temporary store the source name of a route */
  46 static const char *dst = NULL;        /* temporary store the destination name of a route */
  47 static char *gw_src = NULL;     /* temporary store the gateway source name of a route */
  48 static char *gw_dst = NULL;     /* temporary store the gateway destination name of a route */
  49 static double_f_cpvoid_t get_link_latency = NULL;
  50 xbt_dict_t cluster_host_link = NULL; /* for tag cluster */
  51
  52 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  53
  54 static void routing_parse_Speer(void);          /* peer bypass */
  55 static void routing_parse_Srandom(void);        /* random bypass */
  56 static void routing_parse_Erandom(void);        /* random bypass */
  57
  58 static char* replace_random_parameter(char * chaine);
  59 static void clean_routing_after_parse(void);
  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   SURF_MODEL_RULEBASED,
  69   SURF_MODEL_VIVALDI,
  70   SURF_MODEL_CLUSTER
  71 } e_routing_types;
  72
  73 struct s_model_type routing_models[] = { {"Full",
  74                                           "Full routing data (fast, large memory requirements, fully expressive)",
  75                                           model_full_create,
  76                                           model_full_load,
  77                                           model_full_unload,
  78                                           model_full_end},
  79 {"Floyd",
  80  "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  81  model_floyd_create, model_floyd_load, model_floyd_unload,
  82  model_floyd_end},
  83 {"Dijkstra",
  84  "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
  85  model_dijkstra_create, model_dijkstra_both_load,
  86  model_dijkstra_both_unload, model_dijkstra_both_end},
  87 {"DijkstraCache",
  88  "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
  89  model_dijkstracache_create, model_dijkstra_both_load,
  90  model_dijkstra_both_unload, model_dijkstra_both_end},
  91 {"none", "No routing (usable with Constant network only)",
  92  model_none_create, model_none_load, model_none_unload, model_none_end},
  93 {"RuleBased", "Rule-Based routing data (...)", model_rulebased_create,
  94  model_rulebased_load, model_rulebased_unload, model_rulebased_end},
  95 {"Vivaldi", "Vivaldi routing", model_rulebased_create,
  96   model_rulebased_load, model_rulebased_unload, model_rulebased_end},
  97 {"Cluster", "Cluster routing", model_cluster_create,
  98   model_rulebased_load, model_rulebased_unload, model_rulebased_end},
  99 {NULL, NULL, NULL, NULL, NULL, NULL}
 100 };
 101
 102 static double euclidean_dist_comp(int index, xbt_dynar_t src, xbt_dynar_t dst)
 103 {
 104         double src_coord, dst_coord;
 105
 106         src_coord = atof(xbt_dynar_get_as(src, index, char *));
 107         dst_coord = atof(xbt_dynar_get_as(dst, index, char *));
 108
 109         return (src_coord-dst_coord)*(src_coord-dst_coord);
 110
 111 }
 112
 113 static double base_vivaldi_get_latency (const char *src, const char *dst)
 114 {
 115   double euclidean_dist;
 116   xbt_dynar_t src_ctn, dst_ctn;
 117   src_ctn = xbt_lib_get_or_null(host_lib, src, COORD_HOST_LEVEL);
 118   if(!src_ctn) src_ctn = xbt_lib_get_or_null(as_router_lib, src, COORD_ASR_LEVEL);
 119   dst_ctn = xbt_lib_get_or_null(host_lib, dst, COORD_HOST_LEVEL);
 120   if(!dst_ctn) dst_ctn = xbt_lib_get_or_null(as_router_lib, dst, COORD_ASR_LEVEL);
 121
 122   if(dst_ctn == NULL || src_ctn == NULL)
 123   xbt_die("Coord src '%s' :%p   dst '%s' :%p",src,src_ctn,dst,dst_ctn);
 124
 125   euclidean_dist = sqrt (euclidean_dist_comp(0,src_ctn,dst_ctn)+euclidean_dist_comp(1,src_ctn,dst_ctn))
 126                                  + fabs(atof(xbt_dynar_get_as(src_ctn, 2, char *)))+fabs(atof(xbt_dynar_get_as(dst_ctn, 2, char *)));
 127
 128   xbt_assert(euclidean_dist>=0, "Euclidean Dist is less than 0\"%s\" and \"%.2f\"", src, euclidean_dist);
 129
 130   //From .ms to .s
 131   return euclidean_dist / 1000;
 132 }
 133
 134 static double vivaldi_get_link_latency (routing_component_t rc,const char *src, const char *dst, route_extended_t e_route)
 135 {
 136   if(get_network_element_type(src) == SURF_NETWORK_ELEMENT_AS) {
 137           int need_to_clean = e_route?0:1;
 138           double latency;
 139           e_route = e_route?e_route:(*(rc->get_route)) (rc, src, dst);
 140           latency = base_vivaldi_get_latency(e_route->src_gateway,e_route->dst_gateway);
 141           if(need_to_clean) generic_free_extended_route(e_route);
 142           return latency;
 143   } else {
 144           return base_vivaldi_get_latency(src,dst);
 145   }
 146 }
 147
 148 /**
 149  * \brief Add a "host" to the network element list
 150  */
 151 static void parse_S_host(const char *host_id, const char* coord)
 152 {
 153   network_element_info_t info = NULL;
 154   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 155     current_routing->hierarchy = SURF_ROUTING_BASE;
 156   xbt_assert(!xbt_lib_get_or_null(host_lib, host_id,ROUTING_HOST_LEVEL),
 157               "Reading a host, processing unit \"%s\" already exists",
 158               host_id);
 159   xbt_assert(current_routing->set_processing_unit,
 160               "no defined method \"set_processing_unit\" in \"%s\"",
 161               current_routing->name);
 162   (*(current_routing->set_processing_unit)) (current_routing, host_id);
 163   info = xbt_new0(s_network_element_info_t, 1);
 164   info->rc_component = current_routing;
 165   info->rc_type = SURF_NETWORK_ELEMENT_HOST;
 166   xbt_lib_set(host_lib,host_id,ROUTING_HOST_LEVEL,(void *) info);
 167   if (strcmp(coord,"")) {
 168         if(!COORD_HOST_LEVEL) xbt_die("To use coordinates, you must set configuration 'coordinates' to 'yes'");
 169     xbt_dynar_t ctn = xbt_str_split_str(coord, " ");
 170     xbt_dynar_shrink(ctn, 0);
 171     xbt_lib_set(host_lib,host_id,COORD_HOST_LEVEL,(void *) ctn);
 172   }
 173 }
 174
 175 static void parse_E_host(void)
 176 {
 177          xbt_dict_cursor_t cursor = NULL;
 178           char *key;
 179           char *elem;
 180
 181           xbt_dict_foreach(current_property_set, cursor, key, elem) {
 182                   XBT_DEBUG("property : %s = %s",key,elem);
 183                 }
 184 }
 185
 186 /*
 187  * \brief Add a host to the network element list from XML
 188  */
 189 static void parse_S_host_XML(surf_parsing_host_arg_t h)
 190 {
 191         parse_S_host(h->V_host_id, h->V_host_coord);
 192 }
 193 static void parse_E_host_XML(void)
 194 {
 195         parse_E_host();
 196 }
 197
 198 /*
 199  * \brief Add a host to the network element list from lua script
 200  */
 201 static void parse_S_host_lua(const char *host_id, const char *coord)
 202 {
 203   parse_S_host(host_id, coord);
 204 }
 205
 206
 207 /**
 208  * \brief Add a "router" to the network element list
 209  */
 210 static void parse_S_router(void)
 211 {
 212   network_element_info_t info = NULL;
 213   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 214     current_routing->hierarchy = SURF_ROUTING_BASE;
 215   xbt_assert(!xbt_lib_get_or_null(as_router_lib,struct_router->V_router_id, ROUTING_ASR_LEVEL),
 216               "Reading a router, processing unit \"%s\" already exists",
 217               struct_router->V_router_id);
 218   xbt_assert(current_routing->set_processing_unit,
 219               "no defined method \"set_processing_unit\" in \"%s\"",
 220               current_routing->name);
 221   (*(current_routing->set_processing_unit)) (current_routing,
 222                   struct_router->V_router_id);
 223   info = xbt_new0(s_network_element_info_t, 1);
 224   info->rc_component = current_routing;
 225   info->rc_type = SURF_NETWORK_ELEMENT_ROUTER;
 226
 227   xbt_lib_set(as_router_lib,struct_router->V_router_id,ROUTING_ASR_LEVEL,(void *) info);
 228   if (strcmp(A_surfxml_router_coordinates,"")) {
 229         if(!COORD_ASR_LEVEL) xbt_die("To use coordinates, you must set configuration 'coordinates' to 'yes'");
 230     xbt_dynar_t ctn = xbt_str_split_str(A_surfxml_router_coordinates, " ");
 231     xbt_dynar_shrink(ctn, 0);
 232     xbt_lib_set(as_router_lib,struct_router->V_router_id,COORD_ASR_LEVEL,(void *) ctn);
 233   }
 234 }
 235
 236 /**
 237  * brief Add a "router" to the network element list from XML description
 238  */
 239 static void parse_S_router_XML(void)
 240 {
 241         return parse_S_router();
 242 }
 243
 244 /**
 245  * brief Add a "router" to the network element list from XML description
 246  */
 247 static void parse_S_router_lua(const char* router_id)
 248 {
 249         struct_router->V_router_id = xbt_strdup(router_id);
 250         struct_router->V_router_coord = xbt_strdup("");
 251         return parse_S_router();
 252 }
 253
 254 /**
 255  * \brief Set the endponints for a route
 256  */
 257 static void parse_S_route_new_and_endpoints(const char *src_id, const char *dst_id)
 258 {
 259   if (src != NULL && dst != NULL && link_list != NULL)
 260     THROWF(arg_error, 0, "Route between %s to %s can not be defined",
 261            src_id, dst_id);
 262   src = src_id;
 263   dst = dst_id;
 264   xbt_assert(strlen(src) > 0 || strlen(dst) > 0,
 265               "Some limits are null in the route between \"%s\" and \"%s\"",
 266               src, dst);
 267   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 268 }
 269
 270 /**
 271  * \brief Set the endpoints for a route from XML
 272  */
 273 static void parse_S_route_new_and_endpoints_XML(void)
 274 {
 275   parse_S_route_new_and_endpoints(A_surfxml_route_src,
 276                                   A_surfxml_route_dst);
 277 }
 278
 279 /**
 280  * \brief Set the endpoints for a route from lua
 281  */
 282 static void parse_S_route_new_and_endpoints_lua(const char *id_src, const char *id_dst)
 283 {
 284   parse_S_route_new_and_endpoints(id_src, id_dst);
 285 }
 286
 287 /**
 288  * \brief Set the endponints and gateways for a ASroute
 289  */
 290 static void parse_S_ASroute_new_and_endpoints(void)
 291 {
 292   if (src != NULL && dst != NULL && link_list != NULL)
 293     THROWF(arg_error, 0, "Route between %s to %s can not be defined",
 294            A_surfxml_ASroute_src, A_surfxml_ASroute_dst);
 295   src = A_surfxml_ASroute_src;
 296   dst = A_surfxml_ASroute_dst;
 297   gw_src = A_surfxml_ASroute_gw_src;
 298   gw_dst = A_surfxml_ASroute_gw_dst;
 299   xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
 300               || strlen(gw_dst) > 0,
 301               "Some limits are null in the route between \"%s\" and \"%s\"",
 302               src, dst);
 303   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 304 }
 305
 306 /**
 307  * \brief Set the endponints for a bypassRoute
 308  */
 309 static void parse_S_bypassRoute_new_and_endpoints(void)
 310 {
 311   if (src != NULL && dst != NULL && link_list != NULL)
 312     THROWF(arg_error, 0,
 313            "Bypass Route between %s to %s can not be defined",
 314            A_surfxml_bypassRoute_src, A_surfxml_bypassRoute_dst);
 315   src = A_surfxml_bypassRoute_src;
 316   dst = A_surfxml_bypassRoute_dst;
 317   gw_src = A_surfxml_bypassRoute_gw_src;
 318   gw_dst = A_surfxml_bypassRoute_gw_dst;
 319   xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
 320               || strlen(gw_dst) > 0,
 321               "Some limits are null in the route between \"%s\" and \"%s\"",
 322               src, dst);
 323   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 324 }
 325
 326 /**
 327  * \brief Set a new link on the actual list of link for a route or ASroute
 328  */
 329 static void parse_E_link_ctn_new_elem(const char *link_id)
 330 {
 331   char *val;
 332   val = xbt_strdup(link_id);
 333   xbt_dynar_push(link_list, &val);
 334 }
 335
 336 /**
 337  * \brief Set a new link on the actual list of link for a route or ASroute from XML
 338  */
 339
 340 static void parse_E_link_ctn_new_elem_XML(void)
 341 {
 342   if (A_surfxml_link_ctn_direction == A_surfxml_link_ctn_direction_NONE)
 343     parse_E_link_ctn_new_elem(A_surfxml_link_ctn_id);
 344   if (A_surfxml_link_ctn_direction == A_surfxml_link_ctn_direction_UP) {
 345     char *link_id = bprintf("%s_UP", A_surfxml_link_ctn_id);
 346     parse_E_link_ctn_new_elem(link_id);
 347     free(link_id);
 348   }
 349   if (A_surfxml_link_ctn_direction == A_surfxml_link_ctn_direction_DOWN) {
 350     char *link_id = bprintf("%s_DOWN", A_surfxml_link_ctn_id);
 351     parse_E_link_ctn_new_elem(link_id);
 352     free(link_id);
 353   }
 354 }
 355
 356 /**
 357  * \brief Set a new link on the actual list of link for a route or ASroute from lua
 358  */
 359 static void parse_E_link_c_ctn_new_elem_lua(const char *link_id)
 360 {
 361   parse_E_link_ctn_new_elem(link_id);
 362 }
 363
 364 /**
 365  * \brief Store the route by calling the set_route function of the current routing component
 366  */
 367 static void parse_E_route_store_route(void)
 368 {
 369   name_route_extended_t route = xbt_new0(s_name_route_extended_t, 1);
 370   route->generic_route.link_list = link_list;
 371   xbt_assert(current_routing->set_route,
 372               "no defined method \"set_route\" in \"%s\"",
 373               current_routing->name);
 374   (*(current_routing->set_route)) (current_routing, src, dst, route);
 375   link_list = NULL;
 376   src = NULL;
 377   dst = NULL;
 378 }
 379
 380 /**
 381  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 382  */
 383 static void parse_E_ASroute_store_route(void)
 384 {
 385   name_route_extended_t e_route = xbt_new0(s_name_route_extended_t, 1);
 386   e_route->generic_route.link_list = link_list;
 387   e_route->src_gateway = xbt_strdup(gw_src);
 388   e_route->dst_gateway = xbt_strdup(gw_dst);
 389   xbt_assert(current_routing->set_ASroute,
 390               "no defined method \"set_ASroute\" in \"%s\"",
 391               current_routing->name);
 392   (*(current_routing->set_ASroute)) (current_routing, src, dst, e_route);
 393   link_list = NULL;
 394   src = NULL;
 395   dst = NULL;
 396   gw_src = NULL;
 397   gw_dst = NULL;
 398 }
 399
 400 /**
 401  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 402  */
 403 static void parse_E_bypassRoute_store_route(void)
 404 {
 405   route_extended_t e_route = xbt_new0(s_route_extended_t, 1);
 406   e_route->generic_route.link_list = link_list;
 407   e_route->src_gateway = xbt_strdup(gw_src);
 408   e_route->dst_gateway = xbt_strdup(gw_dst);
 409   xbt_assert(current_routing->set_bypassroute,
 410               "no defined method \"set_bypassroute\" in \"%s\"",
 411               current_routing->name);
 412   (*(current_routing->set_bypassroute)) (current_routing, src, dst,
 413                                          e_route);
 414   link_list = NULL;
 415   src = NULL;
 416   dst = NULL;
 417   gw_src = NULL;
 418   gw_dst = NULL;
 419 }
 420
 421 /**
 422  * \brief Make a new routing component to the platform
 423  *
 424  * Add a new autonomous system to the platform. Any elements (such as host,
 425  * router or sub-AS) added after this call and before the corresponding call
 426  * to sg_platf_new_AS_close() will be added to this AS.
 427  *
 428  * Once this function was called, the configuration concerning the used
 429  * models cannot be changed anymore.
 430  *
 431  * @param AS_id name of this autonomous system. Must be uniq in the platform
 432  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 433  */
 434 void sg_platf_new_AS_open(const char *AS_id, const char *wanted_routing_type)
 435 {
 436   routing_component_t new_routing;
 437   model_type_t model = NULL;
 438   int cpt;
 439
 440   surf_parse_models_setup(); /* ensure that the models are created after the last <config> tag and before the first <AS>-like */
 441
 442   /* search the routing model */
 443   for (cpt = 0; routing_models[cpt].name; cpt++)
 444     if (!strcmp(wanted_routing_type, routing_models[cpt].name))
 445       model = &routing_models[cpt];
 446   /* if its not exist, error */
 447   if (model == NULL) {
 448     fprintf(stderr, "Routing model %s not found. Existing models:\n",
 449             wanted_routing_type);
 450     for (cpt = 0; routing_models[cpt].name; cpt++)
 451         fprintf(stderr, "   %s: %s\n", routing_models[cpt].name,
 452                 routing_models[cpt].desc);
 453     xbt_die(NULL);
 454   }
 455
 456   /* make a new routing component */
 457   new_routing = (routing_component_t) (*(model->create)) ();
 458   new_routing->routing = model;
 459   new_routing->hierarchy = SURF_ROUTING_NULL;
 460   new_routing->name = xbt_strdup(AS_id);
 461   new_routing->routing_sons = xbt_dict_new();
 462
 463   /* Hack for Vivaldi */
 464   if(!strcmp(model->name,"Vivaldi"))
 465         new_routing->get_latency = vivaldi_get_link_latency;
 466
 467   if (current_routing == NULL && global_routing->root == NULL) {
 468
 469     /* it is the first one */
 470     new_routing->routing_father = NULL;
 471     global_routing->root = new_routing;
 472
 473   } else if (current_routing != NULL && global_routing->root != NULL) {
 474
 475     xbt_assert(!xbt_dict_get_or_null
 476                 (current_routing->routing_sons, AS_id),
 477                 "The AS \"%s\" already exists", AS_id);
 478     /* it is a part of the tree */
 479     new_routing->routing_father = current_routing;
 480     /* set the father behavior */
 481     if (current_routing->hierarchy == SURF_ROUTING_NULL)
 482       current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
 483     /* add to the sons dictionary */
 484     xbt_dict_set(current_routing->routing_sons, AS_id,
 485                  (void *) new_routing, NULL);
 486     /* add to the father element list */
 487     (*(current_routing->set_autonomous_system)) (current_routing, AS_id);
 488     /* unload the prev parse rules */
 489     (*(current_routing->routing->unload)) ();
 490
 491   } else {
 492     THROWF(arg_error, 0, "All defined components must be belong to a AS");
 493   }
 494   /* set the new parse rules */
 495   (*(new_routing->routing->load)) ();
 496   /* set the new current component of the tree */
 497   current_routing = new_routing;
 498 }
 499
 500 /**
 501  * \brief Specify that the current description of AS is finished
 502  *
 503  * Once you've declared all the content of your AS, you have to close
 504  * it with this call. Your AS is not usable until you call this function.
 505  *
 506  * @fixme: this call is not as robust as wanted: bad things WILL happen
 507  * if you call it twice for the same AS, or if you forget calling it, or
 508  * even if you add stuff to a closed AS
 509  *
 510  */
 511 void sg_platf_new_AS_close() {
 512
 513   if (current_routing == NULL) {
 514     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 515   } else {
 516     network_element_info_t info = NULL;
 517     xbt_assert(!xbt_lib_get_or_null(as_router_lib,current_routing->name, ROUTING_ASR_LEVEL),
 518                 "The AS \"%s\" already exists",current_routing->name);
 519     info = xbt_new0(s_network_element_info_t, 1);
 520     info->rc_component = current_routing->routing_father;
 521     info->rc_type = SURF_NETWORK_ELEMENT_AS;
 522     xbt_lib_set(as_router_lib,current_routing->name,ROUTING_ASR_LEVEL,(void *) info);
 523
 524     (*(current_routing->routing->unload)) ();
 525     (*(current_routing->routing->end)) ();
 526     current_routing = current_routing->routing_father;
 527     if (current_routing != NULL)
 528       (*(current_routing->routing->load)) ();
 529   }
 530 }
 531
 532 /* Aux Business methods */
 533
 534 /**
 535  * \brief Get the AS name of the element
 536  *
 537  * \param name the host name
 538  *
 539  */
 540 static char* elements_As_name(const char *name)
 541 {
 542   routing_component_t as_comp;
 543
 544   /* (1) find the as where the host is located */
 545   as_comp = ((network_element_info_t)
 546             xbt_lib_get_or_null(host_lib,name, ROUTING_HOST_LEVEL))->rc_component;
 547   return as_comp->name;
 548 }
 549
 550
 551 /**
 552  * \brief Get the AS father and the first elements of the chain
 553  *
 554  * \param src the source host name
 555  * \param dst the destination host name
 556  *
 557  * Get the common father of the to processing units, and the first different
 558  * father in the chain
 559  */
 560 static void elements_father(const char *src, const char *dst,
 561                             routing_component_t *res_father,
 562                             routing_component_t *res_src,
 563                             routing_component_t *res_dst)
 564 {
 565   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 566 #define ELEMENTS_FATHER_MAXDEPTH 16 /* increase if it is not enough */
 567   routing_component_t src_as, dst_as;
 568   routing_component_t path_src[ELEMENTS_FATHER_MAXDEPTH];
 569   routing_component_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
 570   int index_src = 0;
 571   int index_dst = 0;
 572   routing_component_t current;
 573   routing_component_t current_src;
 574   routing_component_t current_dst;
 575   routing_component_t father;
 576
 577   /* (1) find the as where the src and dst are located */
 578   network_element_info_t src_data = xbt_lib_get_or_null(host_lib, src,
 579                                                         ROUTING_HOST_LEVEL);
 580   network_element_info_t dst_data = xbt_lib_get_or_null(host_lib, dst,
 581                                                         ROUTING_HOST_LEVEL);
 582   if (!src_data)
 583     src_data = xbt_lib_get_or_null(as_router_lib, src, ROUTING_ASR_LEVEL);
 584   if (!dst_data)
 585     dst_data = xbt_lib_get_or_null(as_router_lib, dst, ROUTING_ASR_LEVEL);
 586   src_as = src_data->rc_component;
 587   dst_as = dst_data->rc_component;
 588
 589   xbt_assert(src_as && dst_as,
 590              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src, dst);
 591
 592   /* (2) find the path to the root routing component */
 593   for (current = src_as ; current != NULL ; current = current->routing_father) {
 594     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 595       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 596     path_src[index_src++] = current;
 597   }
 598   for (current = dst_as ; current != NULL ; current = current->routing_father) {
 599     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 600       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 601     path_dst[index_dst++] = current;
 602   }
 603
 604   /* (3) find the common father */
 605   do {
 606     current_src = path_src[--index_src];
 607     current_dst = path_dst[--index_dst];
 608   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 609
 610   /* (4) they are not in the same routing component, make the path */
 611   if (current_src == current_dst)
 612     father = current_src;
 613   else
 614     father = path_src[index_src + 1];
 615
 616   /* (5) result generation */
 617   *res_father = father;         /* first the common father of src and dst */
 618   *res_src = current_src;       /* second the first different father of src */
 619   *res_dst = current_dst;       /* three  the first different father of dst */
 620
 621 #undef ELEMENTS_FATHER_MAXDEPTH
 622 }
 623
 624 /* Global Business methods */
 625
 626 /**
 627  * \brief Recursive function for get_route_latency
 628  *
 629  * \param src the source host name
 630  * \param dst the destination host name
 631  * \param *e_route the route where the links are stored
 632  * \param *latency the latency, if needed
 633  *
 634  * This function is called by "get_route" and "get_latency". It allows to walk
 635  * recursively through the routing components tree.
 636  */
 637 static void _get_route_latency(const char *src, const char *dst,
 638                                xbt_dynar_t *route, double *latency)
 639 {
 640   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src, dst);
 641   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 642
 643   routing_component_t common_father;
 644   routing_component_t src_father;
 645   routing_component_t dst_father;
 646   elements_father(src, dst, &common_father, &src_father, &dst_father);
 647
 648   if (src_father == dst_father) { /* SURF_ROUTING_BASE */
 649
 650     route_extended_t e_route = NULL;
 651     if (route) {
 652       e_route = common_father->get_route(common_father, src, dst);
 653       xbt_assert(e_route, "no route between \"%s\" and \"%s\"", src, dst);
 654       *route = e_route->generic_route.link_list;
 655     }
 656     if (latency) {
 657       *latency = common_father->get_latency(common_father, src, dst, e_route);
 658       xbt_assert(*latency >= 0.0,
 659                  "latency error on route between \"%s\" and \"%s\"", src, dst);
 660     }
 661     if (e_route) {
 662       xbt_free(e_route->src_gateway);
 663       xbt_free(e_route->dst_gateway);
 664       xbt_free(e_route);
 665     }
 666
 667   } else {                      /* SURF_ROUTING_RECURSIVE */
 668
 669     route_extended_t e_route_bypass = NULL;
 670     if (common_father->get_bypass_route)
 671       e_route_bypass = common_father->get_bypass_route(common_father, src, dst);
 672
 673     xbt_assert(!latency || !e_route_bypass,
 674                "Bypass cannot work yet with get_latency");
 675
 676     route_extended_t e_route_cnt = e_route_bypass
 677       ? e_route_bypass
 678       : common_father->get_route(common_father,
 679                                src_father->name, dst_father->name);
 680
 681     xbt_assert(e_route_cnt, "no route between \"%s\" and \"%s\"",
 682                src_father->name, dst_father->name);
 683
 684     xbt_assert((e_route_cnt->src_gateway == NULL) ==
 685                (e_route_cnt->dst_gateway == NULL),
 686                "bad gateway for route between \"%s\" and \"%s\"", src, dst);
 687
 688     if (route) {
 689       *route = xbt_dynar_new(global_routing->size_of_link, NULL);
 690     }
 691     if (latency) {
 692       *latency = common_father->get_latency(common_father,
 693                                             src_father->name, dst_father->name,
 694                                             e_route_cnt);
 695       xbt_assert(*latency >= 0.0,
 696                  "latency error on route between \"%s\" and \"%s\"",
 697                  src_father->name, dst_father->name);
 698     }
 699
 700     void *link;
 701     unsigned int cpt;
 702
 703     if (strcmp(src, e_route_cnt->src_gateway)) {
 704       double latency_src;
 705       xbt_dynar_t route_src;
 706
 707       _get_route_latency(src, e_route_cnt->src_gateway,
 708                          (route ? &route_src : NULL),
 709                          (latency ? &latency_src : NULL));
 710       if (route) {
 711         xbt_assert(route_src, "no route between \"%s\" and \"%s\"",
 712                    src, e_route_cnt->src_gateway);
 713         xbt_dynar_foreach(route_src, cpt, link) {
 714           xbt_dynar_push(*route, &link);
 715         }
 716         xbt_dynar_free(&route_src);
 717       }
 718       if (latency) {
 719         xbt_assert(latency_src >= 0.0,
 720                    "latency error on route between \"%s\" and \"%s\"",
 721                    src, e_route_cnt->src_gateway);
 722         *latency += latency_src;
 723       }
 724     }
 725
 726     if (route) {
 727       xbt_dynar_foreach(e_route_cnt->generic_route.link_list, cpt, link) {
 728         xbt_dynar_push(*route, &link);
 729       }
 730     }
 731
 732     if (strcmp(e_route_cnt->dst_gateway, dst)) {
 733       double latency_dst;
 734       xbt_dynar_t route_dst;
 735
 736       _get_route_latency(e_route_cnt->dst_gateway, dst,
 737                          (route ? &route_dst : NULL),
 738                          (latency ? &latency_dst : NULL));
 739       if (route) {
 740         xbt_assert(route_dst, "no route between \"%s\" and \"%s\"",
 741                    e_route_cnt->dst_gateway, dst);
 742         xbt_dynar_foreach(route_dst, cpt, link) {
 743           xbt_dynar_push(*route, &link);
 744         }
 745         xbt_dynar_free(&route_dst);
 746       }
 747       if (latency) {
 748         xbt_assert(latency_dst >= 0.0,
 749                    "latency error on route between \"%s\" and \"%s\"",
 750                    e_route_cnt->dst_gateway, dst);
 751         *latency += latency_dst;
 752       }
 753     }
 754
 755     generic_free_extended_route(e_route_cnt);
 756   }
 757 }
 758
 759 /**
 760  * \brief Generic function for get_route, get_route_no_cleanup, and get_latency
 761  */
 762 static void get_route_latency(const char *src, const char *dst,
 763                               xbt_dynar_t *route, double *latency, int cleanup)
 764 {
 765   _get_route_latency(src, dst, route, latency);
 766   xbt_assert(!route || *route, "no route between \"%s\" and \"%s\"", src, dst);
 767   xbt_assert(!latency || *latency >= 0.0,
 768              "latency error on route between \"%s\" and \"%s\"", src, dst);
 769   if (route) {
 770     xbt_dynar_free(&global_routing->last_route);
 771     global_routing->last_route = cleanup ? *route : NULL;
 772   }
 773 }
 774
 775 /**
 776  * \brief Generic method: find a route between hosts
 777  *
 778  * \param src the source host name
 779  * \param dst the destination host name
 780  *
 781  * walk through the routing components tree and find a route between hosts
 782  * by calling the differents "get_route" functions in each routing component.
 783  * No need to free the returned dynar. It will be freed at the next call.
 784  */
 785 static xbt_dynar_t get_route(const char *src, const char *dst)
 786 {
 787   xbt_dynar_t route = NULL;
 788   get_route_latency(src, dst, &route, NULL, 1);
 789   return route;
 790 }
 791
 792 /**
 793  * \brief Generic method: find a route between hosts
 794  *
 795  * \param src the source host name
 796  * \param dst the destination host name
 797  *
 798  * same as get_route, but return NULL if any exception is raised.
 799  */
 800 static xbt_dynar_t get_route_or_null(const char *src, const char *dst)
 801 {
 802   xbt_dynar_t route = NULL;
 803   xbt_ex_t exception;
 804   TRY {
 805     get_route_latency(src, dst, &route, NULL, 1);
 806   }CATCH(exception) {
 807     xbt_ex_free(exception);
 808     return NULL;
 809   }
 810   return route;
 811 }
 812
 813 /**
 814  * \brief Generic method: find a route between hosts
 815  *
 816  * \param src the source host name
 817  * \param dst the destination host name
 818  *
 819  * walk through the routing components tree and find a route between hosts
 820  * by calling the differents "get_route" functions in each routing component.
 821  * Leaves the caller the responsability to clean the returned dynar.
 822  */
 823 static xbt_dynar_t get_route_no_cleanup(const char *src, const char *dst)
 824 {
 825   xbt_dynar_t route = NULL;
 826   get_route_latency(src, dst, &route, NULL, 0);
 827   return route;
 828 }
 829
 830 /*Get Latency*/
 831 static double get_latency(const char *src, const char *dst)
 832 {
 833   double latency = -1.0;
 834   get_route_latency(src, dst, NULL, &latency, 0);
 835   return latency;
 836 }
 837
 838 static int surf_parse_models_setup_already_called=0;
 839 /* Call the last initialization functions, that must be called after the
 840  * <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 841  */
 842 void surf_parse_models_setup()
 843 {
 844   if (surf_parse_models_setup_already_called)
 845     return;
 846   surf_parse_models_setup_already_called=1;
 847   routing_parse_Erandom();
 848   surf_config_models_setup();
 849 }
 850
 851
 852 /**
 853  * \brief Recursive function for finalize
 854  *
 855  * \param rc the source host name
 856  *
 857  * This fuction is call by "finalize". It allow to finalize the
 858  * AS or routing components. It delete all the structures.
 859  */
 860 static void _finalize(routing_component_t rc)
 861 {
 862   if (rc) {
 863     xbt_dict_cursor_t cursor = NULL;
 864     char *key;
 865     routing_component_t elem;
 866     xbt_dict_foreach(rc->routing_sons, cursor, key, elem) {
 867       _finalize(elem);
 868     }
 869     xbt_dict_t tmp_sons = rc->routing_sons;
 870     char *tmp_name = rc->name;
 871     xbt_dict_free(&tmp_sons);
 872     xbt_free(tmp_name);
 873     xbt_assert(rc->finalize, "no defined method \"finalize\" in \"%s\"",
 874                 current_routing->name);
 875     (*(rc->finalize)) (rc);
 876   }
 877 }
 878
 879 /**
 880  * \brief Generic method: delete all the routing structures
 881  *
 882  * walk through the routing components tree and delete the structures
 883  * by calling the differents "finalize" functions in each routing component
 884  */
 885 static void finalize(void)
 886 {
 887   /* delete recursibly all the tree */
 888   _finalize(global_routing->root);
 889   /* delete last_route */
 890   xbt_dynar_free(&(global_routing->last_route));
 891   /* delete global routing structure */
 892   xbt_free(global_routing);
 893   /* make sure that we will reinit the models while loading the platf once reinited -- HACK but there is no proper surf_routing_init() */
 894   surf_parse_models_setup_already_called = 0;
 895 }
 896
 897 static xbt_dynar_t recursive_get_onelink_routes(routing_component_t rc)
 898 {
 899   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
 900
 901   //adding my one link routes
 902   unsigned int cpt;
 903   void *link;
 904   xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
 905   if (onelink_mine) {
 906     xbt_dynar_foreach(onelink_mine, cpt, link) {
 907       xbt_dynar_push(ret, &link);
 908     }
 909   }
 910   //recursing
 911   char *key;
 912   xbt_dict_cursor_t cursor = NULL;
 913   routing_component_t rc_child;
 914   xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
 915     xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
 916     if (onelink_child) {
 917       xbt_dynar_foreach(onelink_child, cpt, link) {
 918         xbt_dynar_push(ret, &link);
 919       }
 920     }
 921   }
 922   return ret;
 923 }
 924
 925 static xbt_dynar_t get_onelink_routes(void)
 926 {
 927   return recursive_get_onelink_routes(global_routing->root);
 928 }
 929
 930 e_surf_network_element_type_t get_network_element_type(const char
 931                                                               *name)
 932 {
 933   network_element_info_t rc = NULL;
 934
 935   rc = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
 936   if(rc) return rc->rc_type;
 937
 938   rc = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
 939   if(rc) return rc->rc_type;
 940
 941   return SURF_NETWORK_ELEMENT_NULL;
 942 }
 943
 944 /**
 945  * \brief Generic method: create the global routing schema
 946  *
 947  * Make a global routing structure and set all the parsing functions.
 948  */
 949 void routing_model_create(size_t size_of_links, void *loopback, double_f_cpvoid_t get_link_latency_fun)
 950 {
 951   /* config the uniq global routing */
 952   global_routing = xbt_new0(s_routing_global_t, 1);
 953   global_routing->root = NULL;
 954   global_routing->get_route = get_route;
 955   global_routing->get_route_or_null = get_route_or_null;
 956   global_routing->get_latency = get_latency;
 957   global_routing->get_route_no_cleanup = get_route_no_cleanup;
 958   global_routing->get_onelink_routes = get_onelink_routes;
 959   global_routing->get_route_latency = get_route_latency;
 960   global_routing->get_network_element_type = get_network_element_type;
 961   global_routing->finalize = finalize;
 962   global_routing->loopback = loopback;
 963   global_routing->size_of_link = size_of_links;
 964   global_routing->last_route = NULL;
 965   get_link_latency = get_link_latency_fun;
 966   /* no current routing at moment */
 967   current_routing = NULL;
 968
 969   /* parse generic elements */
 970   surf_parse_host_add_cb(parse_S_host_XML);
 971   surfxml_add_callback(ETag_surfxml_host_cb_list, &parse_E_host_XML);
 972   surfxml_add_callback(STag_surfxml_router_cb_list, &parse_S_router_XML);
 973
 974   surfxml_add_callback(STag_surfxml_route_cb_list,
 975                        &parse_S_route_new_and_endpoints_XML);
 976   surfxml_add_callback(STag_surfxml_ASroute_cb_list,
 977                        &parse_S_ASroute_new_and_endpoints);
 978   surfxml_add_callback(STag_surfxml_bypassRoute_cb_list,
 979                        &parse_S_bypassRoute_new_and_endpoints);
 980
 981   surfxml_add_callback(ETag_surfxml_link_ctn_cb_list,
 982                        &parse_E_link_ctn_new_elem_XML);
 983
 984   surfxml_add_callback(ETag_surfxml_route_cb_list,
 985                        &parse_E_route_store_route);
 986   surfxml_add_callback(ETag_surfxml_ASroute_cb_list,
 987                        &parse_E_ASroute_store_route);
 988   surfxml_add_callback(ETag_surfxml_bypassRoute_cb_list,
 989                        &parse_E_bypassRoute_store_route);
 990
 991   surfxml_add_callback(STag_surfxml_cluster_cb_list,
 992                        &routing_parse_Scluster);
 993
 994   surfxml_add_callback(STag_surfxml_peer_cb_list,
 995                          &routing_parse_Speer);
 996
 997   surfxml_add_callback(ETag_surfxml_platform_cb_list,
 998                                                   &clean_routing_after_parse);
 999
1000 #ifdef HAVE_TRACING
1001   instr_routing_define_callbacks();
1002 #endif
1003 }
1004
1005 void surf_parse_add_callback_config(void)
1006 {
1007         surfxml_add_callback(STag_surfxml_prop_cb_list, &parse_properties_XML);
1008         surfxml_add_callback(STag_surfxml_random_cb_list, &routing_parse_Srandom);
1009 }
1010
1011 /* ************************************************** */
1012 /* ********** PATERN FOR NEW ROUTING **************** */
1013
1014 /* The minimal configuration of a new routing model need the next functions,
1015  * also you need to set at the start of the file, the new model in the model
1016  * list. Remember keep the null ending of the list.
1017  */
1018 /*** Routing model structure ***/
1019 // typedef struct {
1020 //   s_routing_component_t generic_routing;
1021 //   /* things that your routing model need */
1022 // } s_routing_component_NEW_t,*routing_component_NEW_t;
1023
1024 /*** Parse routing model functions ***/
1025 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
1026 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
1027 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
1028 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
1029 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
1030
1031 /*** Business methods ***/
1032 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
1033 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
1034 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
1035
1036 /*** Creation routing model functions ***/
1037 // static void* model_NEW_create(void) {
1038 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
1039 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
1040 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
1041 //   new_component->generic_routing.set_route = model_NEW_set_route;
1042 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
1043 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
1044 //   new_component->generic_routing.get_route = NEW_get_route;
1045 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
1046 //   new_component->generic_routing.finalize = NEW_finalize;
1047 //   /* initialization of internal structures */
1048 //   return new_component;
1049 // } /* mandatory */
1050 // static void  model_NEW_load(void) {}   /* mandatory */
1051 // static void  model_NEW_unload(void) {} /* mandatory */
1052 // static void  model_NEW_end(void) {}    /* mandatory */
1053
1054 /* ************************************************************************** */
1055 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
1056
1057 void generic_set_processing_unit(routing_component_t rc,
1058                                         const char *name)
1059 {
1060   XBT_DEBUG("Load process unit \"%s\"", name);
1061   int *id = xbt_new0(int, 1);
1062   xbt_dict_t _to_index;
1063   _to_index = current_routing->to_index;
1064   *id = xbt_dict_length(_to_index);
1065   xbt_dict_set(_to_index, name, id, xbt_free);
1066 }
1067
1068 void generic_set_autonomous_system(routing_component_t rc,
1069                                           const char *name)
1070 {
1071   XBT_DEBUG("Load Autonomous system \"%s\"", name);
1072   int *id = xbt_new0(int, 1);
1073   xbt_dict_t _to_index;
1074   _to_index = current_routing->to_index;
1075   *id = xbt_dict_length(_to_index);
1076   xbt_dict_set(_to_index, name, id, xbt_free);
1077 }
1078
1079 int surf_pointer_resource_cmp(const void *a, const void *b)
1080 {
1081   return a != b;
1082 }
1083
1084 int surf_link_resource_cmp(const void *a, const void *b)
1085 {
1086   return !!memcmp(a,b,global_routing->size_of_link);
1087 }
1088
1089 void generic_set_bypassroute(routing_component_t rc,
1090                                     const char *src, const char *dst,
1091                                     route_extended_t e_route)
1092 {
1093   XBT_DEBUG("Load bypassRoute from \"%s\" to \"%s\"", src, dst);
1094   xbt_dict_t dict_bypassRoutes = rc->bypassRoutes;
1095   char *route_name;
1096
1097   route_name = bprintf("%s#%s", src, dst);
1098   xbt_assert(xbt_dynar_length(e_route->generic_route.link_list) > 0,
1099               "Invalid count of links, must be greater than zero (%s,%s)",
1100               src, dst);
1101   xbt_assert(!xbt_dict_get_or_null(dict_bypassRoutes, route_name),
1102               "The bypass route between \"%s\"(\"%s\") and \"%s\"(\"%s\") already exists",
1103               src, e_route->src_gateway, dst, e_route->dst_gateway);
1104
1105   route_extended_t new_e_route =
1106       generic_new_extended_route(SURF_ROUTING_RECURSIVE, e_route, 0);
1107   xbt_dynar_free(&(e_route->generic_route.link_list));
1108   xbt_free(e_route);
1109
1110   xbt_dict_set(dict_bypassRoutes, route_name, new_e_route,
1111                (void (*)(void *)) generic_free_extended_route);
1112   xbt_free(route_name);
1113 }
1114
1115 /* ************************************************************************** */
1116 /* *********************** GENERIC BUSINESS METHODS ************************* */
1117
1118 double generic_get_link_latency(routing_component_t rc,
1119                                        const char *src, const char *dst,
1120                                        route_extended_t route)
1121 {
1122         int need_to_clean = route?0:1;
1123         void * link;
1124         unsigned int i;
1125         double latency = 0.0;
1126
1127         route = route?route:rc->get_route(rc,src,dst);
1128
1129         xbt_dynar_foreach(route->generic_route.link_list,i,link) {
1130                 latency += get_link_latency(link);
1131         }
1132         if(need_to_clean) generic_free_extended_route(route);
1133   return latency;
1134 }
1135
1136 xbt_dynar_t generic_get_onelink_routes(routing_component_t rc)
1137 {
1138   xbt_die("\"generic_get_onelink_routes\" not implemented yet");
1139 }
1140
1141 route_extended_t generic_get_bypassroute(routing_component_t rc,
1142                                                 const char *src,
1143                                                 const char *dst)
1144 {
1145   xbt_dict_t dict_bypassRoutes = rc->bypassRoutes;
1146   routing_component_t src_as, dst_as;
1147   int index_src, index_dst;
1148   xbt_dynar_t path_src = NULL;
1149   xbt_dynar_t path_dst = NULL;
1150   routing_component_t current = NULL;
1151   routing_component_t *current_src = NULL;
1152   routing_component_t *current_dst = NULL;
1153
1154   /* (1) find the as where the src and dst are located */
1155   void * src_data = xbt_lib_get_or_null(host_lib,src, ROUTING_HOST_LEVEL);
1156   void * dst_data = xbt_lib_get_or_null(host_lib,dst, ROUTING_HOST_LEVEL);
1157   if(!src_data) src_data = xbt_lib_get_or_null(as_router_lib,src, ROUTING_ASR_LEVEL);
1158   if(!dst_data) dst_data = xbt_lib_get_or_null(as_router_lib,dst, ROUTING_ASR_LEVEL);
1159
1160   if(src_data == NULL || dst_data == NULL)
1161           xbt_die("Ask for route \"from\"(%s) or \"to\"(%s) no found at AS \"%s\"",
1162                      src, dst, rc->name);
1163
1164   src_as = ((network_element_info_t)src_data)->rc_component;
1165   dst_as = ((network_element_info_t)dst_data)->rc_component;
1166
1167   /* (2) find the path to the root routing component */
1168   path_src = xbt_dynar_new(sizeof(routing_component_t), NULL);
1169   current = src_as;
1170   while (current != NULL) {
1171     xbt_dynar_push(path_src, &current);
1172     current = current->routing_father;
1173   }
1174   path_dst = xbt_dynar_new(sizeof(routing_component_t), NULL);
1175   current = dst_as;
1176   while (current != NULL) {
1177     xbt_dynar_push(path_dst, &current);
1178     current = current->routing_father;
1179   }
1180
1181   /* (3) find the common father */
1182   index_src = path_src->used - 1;
1183   index_dst = path_dst->used - 1;
1184   current_src = xbt_dynar_get_ptr(path_src, index_src);
1185   current_dst = xbt_dynar_get_ptr(path_dst, index_dst);
1186   while (index_src >= 0 && index_dst >= 0 && *current_src == *current_dst) {
1187     xbt_dynar_pop_ptr(path_src);
1188     xbt_dynar_pop_ptr(path_dst);
1189     index_src--;
1190     index_dst--;
1191     current_src = xbt_dynar_get_ptr(path_src, index_src);
1192     current_dst = xbt_dynar_get_ptr(path_dst, index_dst);
1193   }
1194
1195   int max_index_src = path_src->used - 1;
1196   int max_index_dst = path_dst->used - 1;
1197
1198   int max_index = max(max_index_src, max_index_dst);
1199   int i, max;
1200
1201   route_extended_t e_route_bypass = NULL;
1202
1203   for (max = 0; max <= max_index; max++) {
1204     for (i = 0; i < max; i++) {
1205       if (i <= max_index_src && max <= max_index_dst) {
1206         char *route_name = bprintf("%s#%s",
1207                                    (*(routing_component_t *)
1208                                     (xbt_dynar_get_ptr
1209                                      (path_src, i)))->name,
1210                                    (*(routing_component_t *)
1211                                     (xbt_dynar_get_ptr
1212                                      (path_dst, max)))->name);
1213         e_route_bypass =
1214             xbt_dict_get_or_null(dict_bypassRoutes, route_name);
1215         xbt_free(route_name);
1216       }
1217       if (e_route_bypass)
1218         break;
1219       if (max <= max_index_src && i <= max_index_dst) {
1220         char *route_name = bprintf("%s#%s",
1221                                    (*(routing_component_t *)
1222                                     (xbt_dynar_get_ptr
1223                                      (path_src, max)))->name,
1224                                    (*(routing_component_t *)
1225                                     (xbt_dynar_get_ptr
1226                                      (path_dst, i)))->name);
1227         e_route_bypass =
1228             xbt_dict_get_or_null(dict_bypassRoutes, route_name);
1229         xbt_free(route_name);
1230       }
1231       if (e_route_bypass)
1232         break;
1233     }
1234
1235     if (e_route_bypass)
1236       break;
1237
1238     if (max <= max_index_src && max <= max_index_dst) {
1239       char *route_name = bprintf("%s#%s",
1240                                  (*(routing_component_t *)
1241                                   (xbt_dynar_get_ptr
1242                                    (path_src, max)))->name,
1243                                  (*(routing_component_t *)
1244                                   (xbt_dynar_get_ptr
1245                                    (path_dst, max)))->name);
1246       e_route_bypass = xbt_dict_get_or_null(dict_bypassRoutes, route_name);
1247       xbt_free(route_name);
1248     }
1249     if (e_route_bypass)
1250       break;
1251   }
1252
1253   xbt_dynar_free(&path_src);
1254   xbt_dynar_free(&path_dst);
1255
1256   route_extended_t new_e_route = NULL;
1257
1258   if (e_route_bypass) {
1259     void *link;
1260     unsigned int cpt = 0;
1261     new_e_route = xbt_new0(s_route_extended_t, 1);
1262     new_e_route->src_gateway = xbt_strdup(e_route_bypass->src_gateway);
1263     new_e_route->dst_gateway = xbt_strdup(e_route_bypass->dst_gateway);
1264     new_e_route->generic_route.link_list =
1265         xbt_dynar_new(global_routing->size_of_link, NULL);
1266     xbt_dynar_foreach(e_route_bypass->generic_route.link_list, cpt, link) {
1267       xbt_dynar_push(new_e_route->generic_route.link_list, &link);
1268     }
1269   }
1270
1271   return new_e_route;
1272 }
1273
1274 /* ************************************************************************** */
1275 /* ************************* GENERIC AUX FUNCTIONS ************************** */
1276
1277 route_t
1278 generic_new_route(e_surf_routing_hierarchy_t hierarchy,
1279                            void *data, int order)
1280 {
1281
1282   char *link_name;
1283   route_t new_route;
1284   unsigned int cpt;
1285   xbt_dynar_t links = NULL, links_id = NULL;
1286
1287   new_route = xbt_new0(s_route_t, 1);
1288   new_route->link_list =
1289       xbt_dynar_new(global_routing->size_of_link, NULL);
1290
1291   xbt_assert(hierarchy == SURF_ROUTING_BASE,
1292               "the hierarchy type is not SURF_ROUTING_BASE");
1293
1294   links = ((route_t) data)->link_list;
1295
1296
1297   links_id = new_route->link_list;
1298
1299   xbt_dynar_foreach(links, cpt, link_name) {
1300
1301     void *link =
1302                 xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
1303     if (link) {
1304       if (order)
1305         xbt_dynar_push(links_id, &link);
1306       else
1307         xbt_dynar_unshift(links_id, &link);
1308     } else
1309       THROWF(mismatch_error, 0, "Link %s not found", link_name);
1310   }
1311
1312   return new_route;
1313 }
1314
1315 route_extended_t
1316 generic_new_extended_route(e_surf_routing_hierarchy_t hierarchy,
1317                            void *data, int order)
1318 {
1319
1320   char *link_name;
1321   route_extended_t e_route, new_e_route;
1322   route_t route;
1323   unsigned int cpt;
1324   xbt_dynar_t links = NULL, links_id = NULL;
1325
1326   new_e_route = xbt_new0(s_route_extended_t, 1);
1327   new_e_route->generic_route.link_list =
1328       xbt_dynar_new(global_routing->size_of_link, NULL);
1329   new_e_route->src_gateway = NULL;
1330   new_e_route->dst_gateway = NULL;
1331
1332   xbt_assert(hierarchy == SURF_ROUTING_BASE
1333               || hierarchy == SURF_ROUTING_RECURSIVE,
1334               "the hierarchy type is not defined");
1335
1336   if (hierarchy == SURF_ROUTING_BASE) {
1337
1338     route = (route_t) data;
1339     links = route->link_list;
1340
1341   } else if (hierarchy == SURF_ROUTING_RECURSIVE) {
1342
1343     e_route = (route_extended_t) data;
1344     xbt_assert(e_route->src_gateway
1345                 && e_route->dst_gateway, "bad gateway, is null");
1346     links = e_route->generic_route.link_list;
1347
1348     /* remeber not erase the gateway names */
1349     new_e_route->src_gateway = strdup(e_route->src_gateway);
1350     new_e_route->dst_gateway = strdup(e_route->dst_gateway);
1351   }
1352
1353   links_id = new_e_route->generic_route.link_list;
1354
1355   xbt_dynar_foreach(links, cpt, link_name) {
1356
1357     void *link =
1358                 xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
1359     if (link) {
1360       if (order)
1361         xbt_dynar_push(links_id, &link);
1362       else
1363         xbt_dynar_unshift(links_id, &link);
1364     } else
1365       THROWF(mismatch_error, 0, "Link %s not found", link_name);
1366   }
1367
1368   return new_e_route;
1369 }
1370
1371 void generic_free_route(route_t route)
1372 {
1373   if (route) {
1374     xbt_dynar_free(&(route->link_list));
1375     xbt_free(route);
1376   }
1377 }
1378
1379 void generic_free_extended_route(route_extended_t e_route)
1380 {
1381   if (e_route) {
1382     xbt_dynar_free(&(e_route->generic_route.link_list));
1383     if (e_route->src_gateway)
1384       xbt_free(e_route->src_gateway);
1385     if (e_route->dst_gateway)
1386       xbt_free(e_route->dst_gateway);
1387     xbt_free(e_route);
1388   }
1389 }
1390
1391 static routing_component_t generic_as_exist(routing_component_t find_from,
1392                                             routing_component_t to_find)
1393 {
1394   //return to_find; // FIXME: BYPASSERROR OF FOREACH WITH BREAK
1395   xbt_dict_cursor_t cursor = NULL;
1396   char *key;
1397   int found = 0;
1398   routing_component_t elem;
1399   xbt_dict_foreach(find_from->routing_sons, cursor, key, elem) {
1400     if (to_find == elem || generic_as_exist(elem, to_find)) {
1401       found = 1;
1402       break;
1403     }
1404   }
1405   if (found)
1406     return to_find;
1407   return NULL;
1408 }
1409
1410 routing_component_t
1411 generic_autonomous_system_exist(routing_component_t rc, char *element)
1412 {
1413   //return rc; // FIXME: BYPASSERROR OF FOREACH WITH BREAK
1414   routing_component_t element_as, result, elem;
1415   xbt_dict_cursor_t cursor = NULL;
1416   char *key;
1417   element_as = ((network_element_info_t)
1418                 xbt_lib_get_or_null(as_router_lib, element, ROUTING_ASR_LEVEL))->rc_component;
1419   result = ((routing_component_t) - 1);
1420   if (element_as != rc)
1421     result = generic_as_exist(rc, element_as);
1422
1423   int found = 0;
1424   if (result) {
1425     xbt_dict_foreach(element_as->routing_sons, cursor, key, elem) {
1426       found = !strcmp(elem->name, element);
1427       if (found)
1428         break;
1429     }
1430     if (found)
1431       return element_as;
1432   }
1433   return NULL;
1434 }
1435
1436 routing_component_t
1437 generic_processing_units_exist(routing_component_t rc, char *element)
1438 {
1439   routing_component_t element_as;
1440   element_as = ((network_element_info_t)
1441                 xbt_lib_get_or_null(host_lib,
1442                  element, ROUTING_HOST_LEVEL))->rc_component;
1443   if (element_as == rc)
1444     return element_as;
1445   return generic_as_exist(rc, element_as);
1446 }
1447
1448 void generic_src_dst_check(routing_component_t rc, const char *src,
1449                                   const char *dst)
1450 {
1451
1452   void * src_data = xbt_lib_get_or_null(host_lib,src, ROUTING_HOST_LEVEL);
1453   void * dst_data = xbt_lib_get_or_null(host_lib,dst, ROUTING_HOST_LEVEL);
1454   if(!src_data) src_data = xbt_lib_get_or_null(as_router_lib,src, ROUTING_ASR_LEVEL);
1455   if(!dst_data) dst_data = xbt_lib_get_or_null(as_router_lib,dst, ROUTING_ASR_LEVEL);
1456
1457   if(src_data == NULL || dst_data == NULL)
1458           xbt_die("Ask for route \"from\"(%s) or \"to\"(%s) no found at AS \"%s\"",
1459                      src, dst, rc->name);
1460
1461   routing_component_t src_as = ((network_element_info_t)src_data)->rc_component;
1462   routing_component_t dst_as = ((network_element_info_t)dst_data)->rc_component;
1463
1464   if(src_as != dst_as)
1465           xbt_die("The src(%s in %s) and dst(%s in %s) are in differents AS",
1466               src, src_as->name, dst, dst_as->name);
1467   if(rc != dst_as)
1468          xbt_die("The routing component of src'%s' and dst'%s' is not the same as the network elements belong (%s?=%s?=%s)",
1469      src,dst,src_as->name, dst_as->name,rc->name);
1470 }
1471
1472
1473 static void parse_create_host_link(int i)
1474 {
1475         char *host_id, *link_id = NULL;
1476         s_surf_parsing_host_arg_t host;
1477         memset(&host,0,sizeof(host));
1478
1479         host_id = bprintf("%s%d%s", struct_cluster->V_cluster_prefix, i, struct_cluster->V_cluster_suffix);
1480         link_id = bprintf("%s_link_%d", struct_cluster->V_cluster_id, i);
1481
1482         A_surfxml_host_state = A_surfxml_host_state_ON;
1483
1484         XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, struct_cluster->S_cluster_power);
1485         host.V_host_id = xbt_strdup(host_id);
1486         if(strcmp(struct_cluster->V_cluster_availability_file,"")){
1487           xbt_dict_set(patterns, "radical", bprintf("%d", i), xbt_free);
1488           char* tmp_availability_file = xbt_strdup(struct_cluster->V_cluster_availability_file);
1489           xbt_str_varsubst(tmp_availability_file,patterns);
1490           XBT_DEBUG("\tavailability_file=\"%s\"",tmp_availability_file);
1491           host.V_host_power_trace = tmgr_trace_new(tmp_availability_file);
1492           xbt_free(tmp_availability_file);
1493         }
1494         else
1495         {
1496           XBT_DEBUG("\tavailability_file=\"\"");
1497         }
1498         if(strcmp(struct_cluster->V_cluster_state_file,"")){
1499           char *tmp_state_file = xbt_strdup(struct_cluster->V_cluster_state_file);
1500           xbt_str_varsubst(tmp_state_file,patterns);
1501           XBT_DEBUG("\tstate_file=\"%s\"",tmp_state_file);
1502           host.V_host_state_trace = tmgr_trace_new(tmp_state_file);
1503           xbt_free(tmp_state_file);
1504         }
1505         else
1506         {
1507           XBT_DEBUG("\tstate_file=\"\"");
1508         }
1509
1510         host.V_host_power_peak = struct_cluster->S_cluster_power;
1511         host.V_host_power_scale = 1.0;
1512         host.V_host_core = struct_cluster->S_cluster_core;
1513         host.V_host_state_initial = SURF_RESOURCE_ON;
1514         host.V_host_coord = "";
1515         surf_parse_host(&host);
1516         XBT_DEBUG("</host>");
1517
1518         A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
1519         if(AX_surfxml_cluster_sharing_policy == A_surfxml_cluster_sharing_policy_FULLDUPLEX)
1520         {A_surfxml_link_sharing_policy =  A_surfxml_link_sharing_policy_FULLDUPLEX;}
1521         if(AX_surfxml_cluster_sharing_policy == A_surfxml_cluster_sharing_policy_FATPIPE)
1522         {A_surfxml_link_sharing_policy =  A_surfxml_link_sharing_policy_FATPIPE;}
1523
1524         XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,struct_cluster->S_cluster_bw, struct_cluster->S_cluster_lat);
1525
1526         struct_lnk = xbt_new0(s_surf_parsing_link_arg_t, 1);
1527         struct_lnk->V_link_id = xbt_strdup(link_id);
1528         struct_lnk->V_link_bandwidth = struct_cluster->S_cluster_bw;
1529         struct_lnk->V_link_latency = struct_cluster->S_cluster_lat;
1530         struct_lnk->V_link_bandwidth_file = NULL;
1531         struct_lnk->V_link_latency_file = NULL;
1532         struct_lnk->V_link_state_file = NULL;
1533         struct_lnk->V_link_state = SURF_RESOURCE_ON;
1534         struct_lnk->V_link_sharing_policy = A_surfxml_link_sharing_policy;
1535
1536         if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
1537                 struct_lnk->V_policy_initial_link = SURF_LINK_SHARED;
1538         else
1539         {
1540          if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FATPIPE)
1541                  struct_lnk->V_policy_initial_link = SURF_LINK_FATPIPE;
1542          else if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FULLDUPLEX)
1543                  struct_lnk->V_policy_initial_link = SURF_LINK_FULLDUPLEX;
1544         }
1545         surf_parse_link();
1546
1547         ETag_surfxml_host();
1548         ETag_surfxml_link();
1549
1550         surf_parsing_link_up_down_t info = xbt_new0(s_surf_parsing_link_up_down_t, 1);
1551
1552         if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FULLDUPLEX){
1553                 char* tmp_link =  bprintf("%s_UP",link_id);
1554                 info->link_up   = xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
1555                 free(tmp_link);
1556                 tmp_link =  bprintf("%s_DOWN",link_id);
1557                 info->link_down = xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
1558                 free(tmp_link);
1559         }
1560         else{
1561                 info->link_up   = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
1562                 info->link_down = info->link_up;
1563         }
1564         xbt_dict_set(cluster_host_link,host_id,info,xbt_free);
1565         xbt_free(link_id);
1566         xbt_free(host_id);
1567 }
1568
1569 void routing_parse_Scluster(void)
1570 {
1571   if(!cluster_host_link)
1572           cluster_host_link = xbt_dict_new();
1573
1574   static int AX_ptr = 0;
1575   char *host_id, *groups, *link_id = NULL;
1576
1577   s_surf_parsing_host_arg_t host;
1578
1579   if( strcmp(struct_cluster->V_cluster_availability_file,"")
1580           || strcmp(struct_cluster->V_cluster_state_file,"") )
1581   {
1582           if(xbt_dict_size(patterns)==0)
1583                   patterns = xbt_dict_new();
1584           xbt_dict_set(patterns,"id",struct_cluster->V_cluster_id,NULL);
1585           xbt_dict_set(patterns,"prefix",struct_cluster->V_cluster_prefix,NULL);
1586           xbt_dict_set(patterns,"suffix",struct_cluster->V_cluster_suffix,NULL);
1587   }
1588
1589   unsigned int iter;
1590   int start, end, i;
1591   xbt_dynar_t radical_elements;
1592   xbt_dynar_t radical_ends;
1593
1594   static unsigned int surfxml_buffer_stack_stack_ptr = 1;
1595   static unsigned int surfxml_buffer_stack_stack[1024];
1596
1597   surfxml_buffer_stack_stack[0] = 0;
1598   surfxml_bufferstack_push(1);
1599
1600   SURFXML_BUFFER_SET(AS_id, struct_cluster->V_cluster_id);
1601   SURFXML_BUFFER_SET(AS_routing, "Cluster");
1602   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", struct_cluster->V_cluster_id);
1603   SURFXML_START_TAG(AS);
1604
1605   //Make all hosts
1606   radical_elements = xbt_str_split(struct_cluster->V_cluster_radical, ",");
1607   xbt_dynar_foreach(radical_elements, iter, groups) {
1608     memset(&host,0,sizeof(host));
1609
1610     radical_ends = xbt_str_split(groups, "-");
1611     switch (xbt_dynar_length(radical_ends)) {
1612     case 1:
1613                 start=surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1614                 host_id = bprintf("%s%d%s", struct_cluster->V_cluster_prefix, start, struct_cluster->V_cluster_suffix);
1615                 link_id = bprintf("%s_link_%d", struct_cluster->V_cluster_id, start);
1616
1617                 XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, struct_cluster->S_cluster_power);
1618                 host.V_host_id = host_id;
1619                 if(strcmp(struct_cluster->V_cluster_availability_file,"")){
1620                   xbt_dict_set(patterns, "radical", bprintf("%d", start), xbt_free);
1621                   char* tmp_availability_file = xbt_strdup(struct_cluster->V_cluster_availability_file);
1622                   xbt_str_varsubst(tmp_availability_file,patterns);
1623                   XBT_DEBUG("\tavailability_file=\"%s\"",tmp_availability_file);
1624                   host.V_host_power_trace = tmgr_trace_new(tmp_availability_file);
1625                   xbt_free(tmp_availability_file);
1626                 }
1627                 else
1628                 {
1629                   XBT_DEBUG("\tavailability_file=\"\"");
1630                 }
1631                 if(strcmp(struct_cluster->V_cluster_state_file,"")){
1632                   char *tmp_state_file = xbt_strdup(struct_cluster->V_cluster_state_file);
1633                   xbt_str_varsubst(tmp_state_file,patterns);
1634                   XBT_DEBUG("\tstate_file=\"%s\"",tmp_state_file);
1635                   host.V_host_state_trace = tmgr_trace_new(tmp_state_file);
1636                   xbt_free(tmp_state_file);
1637                 }
1638                 else
1639                 {
1640                   XBT_DEBUG("\tstate_file=\"\"");
1641                 }
1642
1643                 host.V_host_power_peak = struct_cluster->S_cluster_power;
1644                 host.V_host_power_scale = 1.0;
1645                 host.V_host_core = struct_cluster->S_cluster_core;
1646                 host.V_host_state_initial = SURF_RESOURCE_ON;
1647                 host.V_host_coord = "";
1648                 surf_parse_host(&host);
1649                 XBT_DEBUG("</host>");
1650
1651                 A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
1652                 if(struct_cluster->V_cluster_sharing_policy == A_surfxml_cluster_sharing_policy_FULLDUPLEX)
1653                 {A_surfxml_link_sharing_policy =  A_surfxml_link_sharing_policy_FULLDUPLEX;}
1654                 if(struct_cluster->V_cluster_sharing_policy == A_surfxml_cluster_sharing_policy_FATPIPE)
1655                 {A_surfxml_link_sharing_policy =  A_surfxml_link_sharing_policy_FATPIPE;}
1656
1657                 XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,struct_cluster->S_cluster_bw, struct_cluster->S_cluster_lat);
1658
1659                 struct_lnk = xbt_new0(s_surf_parsing_link_arg_t, 1);
1660                 struct_lnk->V_link_id = link_id;
1661                 struct_lnk->V_link_bandwidth = struct_cluster->S_cluster_bw;
1662                 struct_lnk->V_link_latency = struct_cluster->S_cluster_lat;
1663                 struct_lnk->V_link_bandwidth_file = NULL;
1664                 struct_lnk->V_link_latency_file = NULL;
1665                 struct_lnk->V_link_state_file = NULL;
1666                 struct_lnk->V_link_state = SURF_RESOURCE_ON;
1667                 struct_lnk->V_link_sharing_policy = A_surfxml_link_sharing_policy;
1668
1669                 if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
1670                         struct_lnk->V_policy_initial_link = SURF_LINK_SHARED;
1671                 else
1672                 {
1673                  if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FATPIPE)
1674                          struct_lnk->V_policy_initial_link = SURF_LINK_FATPIPE;
1675                  else if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FULLDUPLEX)
1676                          struct_lnk->V_policy_initial_link = SURF_LINK_FULLDUPLEX;
1677                 }
1678                 surf_parse_link();
1679
1680                 xbt_dict_set(cluster_host_link,host_id,strdup(link_id),free);
1681 //              XBT_INFO("key '%s' Value '%s'",host_id,link_id);
1682                 ETag_surfxml_host();
1683                 ETag_surfxml_link();
1684
1685                 break;
1686
1687     case 2:
1688
1689       start=surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1690       end=  surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1691       for (i = start; i <= end; i++) {
1692                 host_id = bprintf("%s%d%s", struct_cluster->V_cluster_prefix, i, struct_cluster->V_cluster_suffix);
1693                 link_id = bprintf("%s_link_%d", struct_cluster->V_cluster_id, i);
1694
1695                 A_surfxml_host_state = A_surfxml_host_state_ON;
1696
1697                 XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, struct_cluster->S_cluster_power);
1698                 host.V_host_id = host_id;
1699                 if(strcmp(struct_cluster->V_cluster_availability_file,"")){
1700                   xbt_dict_set(patterns, "radical", bprintf("%d", i), xbt_free);
1701                   char* tmp_availability_file = xbt_strdup(struct_cluster->V_cluster_availability_file);
1702                   xbt_str_varsubst(tmp_availability_file,patterns);
1703                   XBT_DEBUG("\tavailability_file=\"%s\"",tmp_availability_file);
1704                   host.V_host_power_trace = tmgr_trace_new(tmp_availability_file);
1705                   xbt_free(tmp_availability_file);
1706                 }
1707                 else
1708                 {
1709                   XBT_DEBUG("\tavailability_file=\"\"");
1710                 }
1711                 if(strcmp(struct_cluster->V_cluster_state_file,"")){
1712                   char *tmp_state_file = xbt_strdup(struct_cluster->V_cluster_state_file);
1713                   xbt_str_varsubst(tmp_state_file,patterns);
1714                   XBT_DEBUG("\tstate_file=\"%s\"",tmp_state_file);
1715                   host.V_host_state_trace = tmgr_trace_new(tmp_state_file);
1716                   xbt_free(tmp_state_file);
1717                 }
1718                 else
1719                 {
1720                   XBT_DEBUG("\tstate_file=\"\"");
1721                 }
1722
1723                 host.V_host_power_peak = struct_cluster->S_cluster_power;
1724                 host.V_host_power_scale = 1.0;
1725                 host.V_host_core = struct_cluster->S_cluster_core;
1726                 host.V_host_state_initial = SURF_RESOURCE_ON;
1727                 host.V_host_coord = "";
1728                 surf_parse_host(&host);
1729                 XBT_DEBUG("</host>");
1730
1731                 A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
1732                 if(struct_cluster->V_cluster_sharing_policy == A_surfxml_cluster_sharing_policy_FULLDUPLEX)
1733                 {A_surfxml_link_sharing_policy =  A_surfxml_link_sharing_policy_FULLDUPLEX;}
1734                 if(struct_cluster->V_cluster_sharing_policy == A_surfxml_cluster_sharing_policy_FATPIPE)
1735                 {A_surfxml_link_sharing_policy =  A_surfxml_link_sharing_policy_FATPIPE;}
1736
1737                 XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,struct_cluster->S_cluster_bw, struct_cluster->S_cluster_lat);
1738
1739                 struct_lnk = xbt_new0(s_surf_parsing_link_arg_t, 1);
1740                 struct_lnk->V_link_id = link_id;
1741                 struct_lnk->V_link_bandwidth = struct_cluster->S_cluster_bw;
1742                 struct_lnk->V_link_latency = struct_cluster->S_cluster_lat;
1743                 struct_lnk->V_link_bandwidth_file = NULL;
1744                 struct_lnk->V_link_latency_file = NULL;
1745                 struct_lnk->V_link_state_file = NULL;
1746                 struct_lnk->V_link_state = SURF_RESOURCE_ON;
1747                 struct_lnk->V_link_sharing_policy = A_surfxml_link_sharing_policy;
1748
1749                 if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
1750                         struct_lnk->V_policy_initial_link = SURF_LINK_SHARED;
1751                 else
1752                 {
1753                  if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FATPIPE)
1754                          struct_lnk->V_policy_initial_link = SURF_LINK_FATPIPE;
1755                  else if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FULLDUPLEX)
1756                          struct_lnk->V_policy_initial_link = SURF_LINK_FULLDUPLEX;
1757                 }
1758                 surf_parse_link();
1759
1760                 xbt_dict_set(cluster_host_link,host_id,strdup(link_id),free);
1761 //              XBT_INFO("key '%s' Value '%s'",host_id,link_id);
1762
1763                 ETag_surfxml_host();
1764                 ETag_surfxml_link();
1765
1766       }
1767       break;
1768
1769     default:
1770       XBT_DEBUG("Malformed radical");
1771       break;
1772     }
1773
1774     xbt_dynar_free(&radical_ends);
1775   }
1776   xbt_dynar_free(&radical_elements);
1777
1778   //Make the router
1779   XBT_DEBUG(" ");
1780   XBT_DEBUG("<router id=\"%s\"/>", struct_cluster->S_cluster_router_id);
1781   SURFXML_BUFFER_SET(router_id, struct_cluster->S_cluster_router_id);
1782   SURFXML_BUFFER_SET(router_coordinates, "");
1783   SURFXML_START_TAG(router);
1784   SURFXML_END_TAG(router);
1785
1786   //Make the backbone
1787   if( (struct_cluster->S_cluster_bb_bw!= 0)  && (struct_cluster->S_cluster_bb_lat!=0)  ){
1788           char *link_backbone = bprintf("%s_backbone", struct_cluster->V_cluster_id);
1789           XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,struct_cluster->S_cluster_bb_bw, struct_cluster->S_cluster_bb_lat);
1790
1791           A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
1792           if(AX_surfxml_cluster_bb_sharing_policy == A_surfxml_cluster_bb_sharing_policy_FATPIPE)
1793           {A_surfxml_link_sharing_policy =  A_surfxml_link_sharing_policy_FATPIPE;}
1794
1795           struct_lnk = xbt_new0(s_surf_parsing_link_arg_t, 1);
1796           struct_lnk->V_link_id = xbt_strdup(link_backbone);
1797           struct_lnk->V_link_bandwidth = struct_cluster->S_cluster_bb_bw;
1798           struct_lnk->V_link_latency = struct_cluster->S_cluster_bb_lat;
1799           struct_lnk->V_link_bandwidth_file = NULL;
1800           struct_lnk->V_link_latency_file = NULL;
1801           struct_lnk->V_link_state_file = NULL;
1802           struct_lnk->V_link_state = SURF_RESOURCE_ON;
1803           struct_lnk->V_link_sharing_policy = A_surfxml_link_sharing_policy;
1804
1805           if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
1806                   struct_lnk->V_policy_initial_link = SURF_LINK_SHARED;
1807           else
1808                   struct_lnk->V_policy_initial_link = SURF_LINK_FATPIPE;
1809
1810           surf_parse_link();
1811           ETag_surfxml_link();
1812
1813           surf_parsing_link_up_down_t info = xbt_new0(s_surf_parsing_link_up_down_t, 1);
1814           info->link_up   = xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL);
1815           info->link_down = info->link_up;
1816           xbt_dict_set(cluster_host_link,struct_cluster->V_cluster_id,info,xbt_free);
1817           free(link_backbone);
1818   }
1819
1820   XBT_DEBUG(" ");
1821
1822   char *new_suffix = xbt_strdup("");
1823
1824   radical_elements = xbt_str_split(struct_cluster->V_cluster_suffix, ".");
1825   xbt_dynar_foreach(radical_elements, iter, groups) {
1826     if (strcmp(groups, "")) {
1827       char *old_suffix = new_suffix;
1828       new_suffix = bprintf("%s\\.%s", old_suffix, groups);
1829       free(old_suffix);
1830     }
1831   }
1832
1833   xbt_dynar_free(&radical_elements);
1834   xbt_free(new_suffix);
1835
1836   if( strcmp(struct_cluster->V_cluster_availability_file,"")
1837                   || strcmp(struct_cluster->V_cluster_state_file,"") )
1838           xbt_dict_free(&patterns);
1839
1840   XBT_DEBUG("</AS>");
1841   SURFXML_END_TAG(AS);
1842   XBT_DEBUG(" ");
1843
1844   surfxml_bufferstack_pop(1);
1845 }
1846 /*
1847  * This function take a string and replace parameters from patterns dict.
1848  * It returns the new value.
1849  */
1850 static char* replace_random_parameter(char * string)
1851 {
1852   char *test_string = NULL;
1853
1854   if(xbt_dict_size(random_value)==0)
1855     return string;
1856
1857   string = xbt_str_varsubst(string, patterns); // for patterns of cluster
1858   test_string = bprintf("${%s}", string);
1859   test_string = xbt_str_varsubst(test_string,random_value); //Add ${xxxxx} for random Generator
1860
1861   if (strcmp(test_string,"")) { //if not empty, keep this value.
1862     xbt_free(string);
1863     string = test_string;
1864   } //In other case take old value (without ${})
1865   else
1866         free(test_string);
1867   return string;
1868 }
1869
1870 static void clean_routing_after_parse(void)
1871 {
1872         xbt_dict_free(&random_value);
1873         xbt_dict_free(&patterns);
1874 }
1875
1876 static void routing_parse_Speer(void)
1877 {
1878   static int AX_ptr = 0;
1879   char *host_id = NULL;
1880   char *router_id, *link_router, *link_backbone, *link_id_up, *link_id_down;
1881
1882   static unsigned int surfxml_buffer_stack_stack_ptr = 1;
1883   static unsigned int surfxml_buffer_stack_stack[1024];
1884
1885   surfxml_buffer_stack_stack[0] = 0;
1886
1887   surfxml_bufferstack_push(1);
1888
1889   SURFXML_BUFFER_SET(AS_id, struct_peer->V_peer_id);
1890
1891   SURFXML_BUFFER_SET(AS_routing, "Full");
1892   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Full\">", struct_peer->V_peer_id);
1893
1894   SURFXML_START_TAG(AS);
1895
1896   XBT_DEBUG(" ");
1897   host_id = bprintf("peer_%s", struct_peer->V_peer_id);
1898   router_id = bprintf("router_%s", struct_peer->V_peer_id);
1899   link_id_up = bprintf("link_%s_up", struct_peer->V_peer_id);
1900   link_id_down = bprintf("link_%s_down", struct_peer->V_peer_id);
1901
1902   link_router = bprintf("%s_link_router", struct_peer->V_peer_id);
1903   link_backbone = bprintf("%s_backbone", struct_peer->V_peer_id);
1904
1905   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%s\"/>", host_id, struct_peer->V_peer_power);
1906   A_surfxml_host_state = A_surfxml_host_state_ON;
1907   SURFXML_BUFFER_SET(host_id, host_id);
1908   SURFXML_BUFFER_SET(host_power, struct_peer->V_peer_power);
1909   SURFXML_BUFFER_SET(host_availability, "1.0");
1910   SURFXML_BUFFER_SET(host_availability_file, struct_peer->V_peer_availability_trace);
1911   SURFXML_BUFFER_SET(host_state_file, struct_peer->V_peer_state_trace);
1912   SURFXML_BUFFER_SET(host_coordinates, "");
1913   SURFXML_BUFFER_SET(host_core, "1.0");
1914   SURFXML_START_TAG(host);
1915   SURFXML_END_TAG(host);
1916
1917   XBT_DEBUG("<router id=\"%s\"\tcoordinates=\"%s\"/>", router_id, struct_peer->V_peer_coord);
1918   SURFXML_BUFFER_SET(router_id, router_id);
1919   SURFXML_BUFFER_SET(router_coordinates, struct_peer->V_peer_coord);
1920   SURFXML_START_TAG(router);
1921   SURFXML_END_TAG(router);
1922
1923   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%s\"\tlat=\"%s\"/>", link_id_up, struct_peer->V_peer_bw_in, struct_peer->V_peer_lat);
1924   A_surfxml_link_state = A_surfxml_link_state_ON;
1925   A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
1926   SURFXML_BUFFER_SET(link_id, link_id_up);
1927   SURFXML_BUFFER_SET(link_bandwidth, struct_peer->V_peer_bw_in);
1928   SURFXML_BUFFER_SET(link_latency, struct_peer->V_peer_lat);
1929   SURFXML_BUFFER_SET(link_bandwidth_file, "");
1930   SURFXML_BUFFER_SET(link_latency_file, "");
1931   SURFXML_BUFFER_SET(link_state_file, "");
1932   SURFXML_START_TAG(link);
1933   SURFXML_END_TAG(link);
1934
1935   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%s\"\tlat=\"%s\"/>", link_id_down, struct_peer->V_peer_bw_out, struct_peer->V_peer_lat);
1936   A_surfxml_link_state = A_surfxml_link_state_ON;
1937   A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
1938   SURFXML_BUFFER_SET(link_id, link_id_down);
1939   SURFXML_BUFFER_SET(link_bandwidth, struct_peer->V_peer_bw_out);
1940   SURFXML_BUFFER_SET(link_latency, struct_peer->V_peer_lat);
1941   SURFXML_BUFFER_SET(link_bandwidth_file, "");
1942   SURFXML_BUFFER_SET(link_latency_file, "");
1943   SURFXML_BUFFER_SET(link_state_file, "");
1944   SURFXML_START_TAG(link);
1945   SURFXML_END_TAG(link);
1946
1947   XBT_DEBUG(" ");
1948
1949   // begin here
1950   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", host_id, router_id);
1951   XBT_DEBUG("symmetrical=\"NO\">");
1952   SURFXML_BUFFER_SET(route_src, host_id);
1953   SURFXML_BUFFER_SET(route_dst, router_id);
1954   A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1955   SURFXML_START_TAG(route);
1956
1957   XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_up);
1958   SURFXML_BUFFER_SET(link_ctn_id, link_id_up);
1959   A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1960   SURFXML_START_TAG(link_ctn);
1961   SURFXML_END_TAG(link_ctn);
1962
1963   XBT_DEBUG("</route>");
1964   SURFXML_END_TAG(route);
1965
1966   //Opposite Route
1967   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", router_id, host_id);
1968   XBT_DEBUG("symmetrical=\"NO\">");
1969   SURFXML_BUFFER_SET(route_src, router_id);
1970   SURFXML_BUFFER_SET(route_dst, host_id);
1971   A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1972   SURFXML_START_TAG(route);
1973
1974   XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_down);
1975   SURFXML_BUFFER_SET(link_ctn_id, link_id_down);
1976   A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1977   SURFXML_START_TAG(link_ctn);
1978   SURFXML_END_TAG(link_ctn);
1979
1980   XBT_DEBUG("</route>");
1981   SURFXML_END_TAG(route);
1982
1983   XBT_DEBUG("</AS>");
1984   SURFXML_END_TAG(AS);
1985   XBT_DEBUG(" ");
1986
1987   //xbt_dynar_free(&tab_elements_num);
1988         free(host_id);
1989         free(router_id);
1990         free(link_router);
1991         free(link_backbone);
1992         free(link_id_up);
1993         free(link_id_down);
1994   surfxml_bufferstack_pop(1);
1995 }
1996
1997 static void routing_parse_Srandom(void)
1998 {
1999           double mean, std, min, max, seed;
2000           char *random_id = A_surfxml_random_id;
2001           char *random_radical = A_surfxml_random_radical;
2002           char *rd_name = NULL;
2003           char *rd_value;
2004           mean = surf_parse_get_double(A_surfxml_random_mean);
2005           std  = surf_parse_get_double(A_surfxml_random_std_deviation);
2006           min  = surf_parse_get_double(A_surfxml_random_min);
2007           max  = surf_parse_get_double(A_surfxml_random_max);
2008           seed = surf_parse_get_double(A_surfxml_random_seed);
2009
2010           double res = 0;
2011           int i = 0;
2012           random_data_t random = xbt_new0(s_random_data_t, 1);
2013           char *tmpbuf;
2014
2015           xbt_dynar_t radical_elements;
2016           unsigned int iter;
2017           char *groups;
2018           int start, end;
2019           xbt_dynar_t radical_ends;
2020
2021           random->generator = A_surfxml_random_generator;
2022           random->seed = seed;
2023           random->min = min;
2024           random->max = max;
2025
2026           /* Check user stupidities */
2027           if (max < min)
2028             THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
2029           if (mean < min)
2030             THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean,
2031                    min);
2032           if (mean > max)
2033             THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean,
2034                    max);
2035
2036           /* normalize the mean and standard deviation before storing */
2037           random->mean = (mean - min) / (max - min);
2038           random->std = std / (max - min);
2039
2040           if (random->mean * (1 - random->mean) < random->std * random->std)
2041             THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
2042                    random->mean, random->std);
2043
2044           XBT_DEBUG("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
2045           random_id,
2046           random->min,
2047           random->max,
2048           random->mean,
2049           random->std,
2050           random->generator,
2051           random->seed,
2052           random_radical);
2053
2054           if(xbt_dict_size(random_value)==0)
2055                   random_value = xbt_dict_new();
2056
2057           if(!strcmp(random_radical,""))
2058           {
2059                   res = random_generate(random);
2060                   rd_value = bprintf("%f",res);
2061                   xbt_dict_set(random_value, random_id, rd_value, free);
2062           }
2063           else
2064           {
2065                   radical_elements = xbt_str_split(random_radical, ",");
2066                   xbt_dynar_foreach(radical_elements, iter, groups) {
2067                         radical_ends = xbt_str_split(groups, "-");
2068                         switch (xbt_dynar_length(radical_ends)) {
2069                         case 1:
2070                                           xbt_assert(!xbt_dict_get_or_null(random_value,random_id),"Custom Random '%s' already exists !",random_id);
2071                                           res = random_generate(random);
2072                                           tmpbuf = bprintf("%s%d",random_id,atoi(xbt_dynar_getfirst_as(radical_ends,char *)));
2073                                           xbt_dict_set(random_value, tmpbuf, bprintf("%f",res), free);
2074                                           xbt_free(tmpbuf);
2075                                           break;
2076
2077                         case 2:
2078                               start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
2079                               end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
2080                                           for (i = start; i <= end; i++) {
2081                                                   xbt_assert(!xbt_dict_get_or_null(random_value,random_id),"Custom Random '%s' already exists !",bprintf("%s%d",random_id,i));
2082                                                   res = random_generate(random);
2083                           tmpbuf = bprintf("%s%d",random_id,i);
2084                                                   xbt_dict_set(random_value, tmpbuf, bprintf("%f",res), free);
2085                           xbt_free(tmpbuf);
2086                                           }
2087                                           break;
2088                         default:
2089                                 XBT_INFO("Malformed radical");
2090                                 break;
2091                         }
2092                         res = random_generate(random);
2093                         rd_name  = bprintf("%s_router",random_id);
2094                         rd_value = bprintf("%f",res);
2095                         xbt_dict_set(random_value, rd_name, rd_value, free);
2096
2097                         xbt_dynar_free(&radical_ends);
2098                   }
2099                   free(rd_name);
2100                   xbt_dynar_free(&radical_elements);
2101           }
2102 }
2103
2104 static void routing_parse_Erandom(void)
2105 {
2106         /*xbt_dict_cursor_t cursor = NULL;
2107         char *key;
2108         char *elem;
2109
2110         xbt_dict_foreach(random_value, cursor, key, elem) {
2111           XBT_DEBUG("%s = %s",key,elem);
2112         }
2113 */
2114 }
2115
2116 /*
2117  * New methods to init the routing model component from the lua script
2118  */
2119
2120
2121 /*
2122  * add a host to the network element list
2123  */
2124
2125 void routing_add_host(const char *host_id)
2126 {
2127   parse_S_host_lua((char *) host_id, (char*)""); // FIXME propagate coordinate system to lua
2128 }
2129
2130 /*
2131  * Set a new link on the actual list of link for a route or ASroute
2132  */
2133 void routing_add_link(const char *link_id)
2134 {
2135   parse_E_link_c_ctn_new_elem_lua((char *) link_id);
2136 }
2137
2138 /*
2139  *Set the endpoints for a route
2140  */
2141 void routing_set_route(const char *src_id, const char *dst_id)
2142 {
2143   parse_S_route_new_and_endpoints_lua(src_id, dst_id);
2144 }
2145
2146 /*
2147  * Store the route by calling parse_E_route_store_route
2148  */
2149 void routing_store_route(void)
2150 {
2151   parse_E_route_store_route();
2152 }