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 /**
  16  * @ingroup SURF_build_api
  17  * @brief A library containing all known workstations
  18  */
  19 xbt_lib_t host_lib;
  20
  21 int ROUTING_HOST_LEVEL;         //Routing level
  22 int SURF_CPU_LEVEL;             //Surf cpu level
  23 int SURF_WKS_LEVEL;             //Surf workstation level
  24 int SIMIX_HOST_LEVEL;           //Simix level
  25 int MSG_HOST_LEVEL;             //Msg level
  26 int SD_HOST_LEVEL;              //Simdag level
  27 int COORD_HOST_LEVEL=0;         //Coordinates level
  28 int NS3_HOST_LEVEL;             //host node for ns3
  29
  30 xbt_dict_t watched_hosts_lib;
  31
  32 /**
  33  * @ingroup SURF_build_api
  34  * @brief A library containing all known links
  35  */
  36 xbt_lib_t link_lib;
  37 int SD_LINK_LEVEL;              //Simdag level
  38 int SURF_LINK_LEVEL;            //Surf level
  39 int NS3_LINK_LEVEL;             //link for ns3
  40
  41 xbt_lib_t as_router_lib;
  42 int ROUTING_ASR_LEVEL;          //Routing level
  43 int COORD_ASR_LEVEL;            //Coordinates level
  44 int NS3_ASR_LEVEL;              //host node for ns3
  45
  46 static xbt_dict_t random_value = NULL;
  47
  48 /** @brief Retrieve a routing edge from its name
  49  *
  50  * Routing edges are either CPU/workstation and routers, whatever
  51  */
  52 sg_routing_edge_t sg_routing_edge_by_name_or_null(const char *name) {
  53     sg_routing_edge_t net_elm = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
  54     if(!net_elm) net_elm = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
  55   return net_elm;
  56 }
  57
  58 /* Global vars */
  59 routing_platf_t routing_platf = NULL;
  60 AS_t current_routing = NULL;
  61
  62 /* global parse functions */
  63 extern xbt_dynar_t mount_list;
  64
  65 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  66
  67 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  68 static void routing_parse_Srandom(void);        /* random bypass */
  69
  70 static void routing_parse_postparse(void);
  71
  72 /* this lines are only for replace use like index in the model table */
  73 typedef enum {
  74   SURF_MODEL_FULL = 0,
  75   SURF_MODEL_FLOYD,
  76   SURF_MODEL_DIJKSTRA,
  77   SURF_MODEL_DIJKSTRACACHE,
  78   SURF_MODEL_NONE,
  79   SURF_MODEL_RULEBASED,
  80   SURF_MODEL_VIVALDI,
  81   SURF_MODEL_CLUSTER
  82 } e_routing_types;
  83
  84 struct s_model_type routing_models[] = {
  85   {"Full",
  86    "Full routing data (fast, large memory requirements, fully expressive)",
  87    model_full_create, model_full_end},
  88   {"Floyd",
  89    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  90    model_floyd_create, model_floyd_end},
  91   {"Dijkstra",
  92    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
  93    model_dijkstra_create, model_dijkstra_both_end},
  94   {"DijkstraCache",
  95    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
  96    model_dijkstracache_create, model_dijkstra_both_end},
  97   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
  98    model_none_create,  NULL},
  99   {"RuleBased", "Rule-Based routing data (...)",
 100    model_rulebased_create, NULL},
 101   {"Vivaldi", "Vivaldi routing",
 102    model_vivaldi_create, NULL},
 103   {"Cluster", "Cluster routing",
 104    model_cluster_create, NULL},
 105   {NULL, NULL, NULL, NULL}
 106 };
 107
 108 /**
 109  * \brief Add a "host_link" to the network element list
 110  */
 111 static void parse_S_host_link(sg_platf_host_link_cbarg_t host)
 112 {
 113   sg_routing_edge_t info = NULL;
 114   info = xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL);
 115   xbt_assert(info, "Host '%s' not found!",host->id);
 116   xbt_assert(current_routing->model_desc == &routing_models[SURF_MODEL_CLUSTER] ||
 117       current_routing->model_desc == &routing_models[SURF_MODEL_VIVALDI],
 118       "You have to be in model Cluster to use tag host_link!");
 119
 120   s_surf_parsing_link_up_down_t link_up_down;
 121   link_up_down.link_up = xbt_lib_get_or_null(link_lib, host->link_up, SURF_LINK_LEVEL);
 122   link_up_down.link_down = xbt_lib_get_or_null(link_lib, host->link_down, SURF_LINK_LEVEL);
 123
 124   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
 125   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
 126
 127   if(!current_routing->link_up_down_list)
 128     current_routing->link_up_down_list = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 129
 130   // If dynar is is greater than edge id and if the host_link is already defined
 131   if(xbt_dynar_length(current_routing->link_up_down_list) > info->id &&
 132       xbt_dynar_get_as(current_routing->link_up_down_list,info->id,void*))
 133     xbt_die("Host_link for '%s' is already defined!",host->id);
 134
 135   XBT_DEBUG("Push Host_link for host '%s' to position %d",info->name,info->id);
 136   xbt_dynar_set_as(current_routing->link_up_down_list,info->id,s_surf_parsing_link_up_down_t,link_up_down);
 137 }
 138
 139 /**
 140  * \brief Add a "host" to the network element list
 141  */
 142 static void parse_S_host(sg_platf_host_cbarg_t host)
 143 {
 144   sg_routing_edge_t info = NULL;
 145   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 146     current_routing->hierarchy = SURF_ROUTING_BASE;
 147   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
 148              "Reading a host, processing unit \"%s\" already exists", host->id);
 149
 150   info = xbt_new0(s_network_element_t, 1);
 151   info->rc_component = current_routing;
 152   info->rc_type = SURF_NETWORK_ELEMENT_HOST;
 153   info->name = xbt_strdup(host->id);
 154   info->id = current_routing->parse_PU(current_routing, (void *) info);
 155   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
 156   XBT_DEBUG("Having set name '%s' id '%d'",host->id,info->id);
 157
 158   if(mount_list){
 159     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 160     mount_list = NULL;
 161   }
 162
 163   if (host->coord && strcmp(host->coord, "")) {
 164     unsigned int cursor;
 165     char*str;
 166
 167     if (!COORD_HOST_LEVEL)
 168       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 169     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 170     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 171     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 172     xbt_dynar_foreach(ctn_str,cursor, str) {
 173       double val = atof(str);
 174       xbt_dynar_push(ctn,&val);
 175     }
 176     xbt_dynar_shrink(ctn, 0);
 177     xbt_dynar_free(&ctn_str);
 178     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
 179     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
 180   }
 181 }
 182
 183 /**
 184  * \brief Add a "router" to the network element list
 185  */
 186 static void parse_S_router(sg_platf_router_cbarg_t router)
 187 {
 188   sg_routing_edge_t info = NULL;
 189   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 190     current_routing->hierarchy = SURF_ROUTING_BASE;
 191   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 192              "Reading a router, processing unit \"%s\" already exists",
 193              router->id);
 194
 195   info = xbt_new0(s_network_element_t, 1);
 196   info->rc_component = current_routing;
 197   info->rc_type = SURF_NETWORK_ELEMENT_ROUTER;
 198   info->name = xbt_strdup(router->id);
 199   info->id = current_routing->parse_PU(current_routing, (void *) info);
 200   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 201   XBT_DEBUG("Having set name '%s' id '%d'",router->id,info->id);
 202
 203   if (router->coord && strcmp(router->coord, "")) {
 204     unsigned int cursor;
 205     char*str;
 206
 207     if (!COORD_ASR_LEVEL)
 208       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 209     /* Pre-parse the host coordinates */
 210     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 211     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 212     xbt_dynar_foreach(ctn_str,cursor, str) {
 213       double val = atof(str);
 214       xbt_dynar_push(ctn,&val);
 215     }
 216     xbt_dynar_shrink(ctn, 0);
 217     xbt_dynar_free(&ctn_str);
 218     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 219     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 220   }
 221 }
 222
 223 /**
 224  * \brief Store the route by calling the set_route function of the current routing component
 225  */
 226 static void parse_E_route(sg_platf_route_cbarg_t route)
 227 {
 228   route_t created_route = xbt_new0(s_route_t, 1);
 229   created_route->link_list = route->link_list;
 230
 231   xbt_assert(current_routing->parse_route,
 232              "no defined method \"set_route\" in \"%s\"",
 233              current_routing->name);
 234
 235   current_routing->parse_route(current_routing,
 236       route->src, route->dst, created_route);
 237   generic_free_route(created_route);
 238 }
 239
 240 /**
 241  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 242  */
 243 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
 244 {
 245   route_t e_route = xbt_new0(s_route_t, 1);
 246   e_route->link_list = ASroute->link_list;
 247   e_route->src_gateway = ASroute->gw_src;
 248   e_route->dst_gateway = ASroute->gw_dst;
 249
 250   xbt_assert(current_routing->parse_ASroute,
 251              "no defined method \"set_ASroute\" in \"%s\"",
 252              current_routing->name);
 253   current_routing->parse_ASroute(current_routing, ASroute->src, ASroute->dst, e_route);
 254   generic_free_route(e_route);
 255 }
 256
 257 /**
 258  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 259  */
 260 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
 261 {
 262   route_t e_route = xbt_new0(s_route_t, 1);
 263   e_route->link_list = route->link_list;
 264
 265   xbt_assert(current_routing->parse_bypassroute,
 266              "Bypassing mechanism not implemented by routing '%s'",
 267              current_routing->name);
 268
 269   current_routing->parse_bypassroute(current_routing, route->src, route->dst, e_route);
 270 }
 271
 272 /**
 273  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 274  */
 275 static void parse_E_bypassASroute(sg_platf_route_cbarg_t ASroute)
 276 {
 277   route_t e_route = xbt_new0(s_route_t, 1);
 278   e_route->link_list = ASroute->link_list;
 279   e_route->src_gateway = ASroute->gw_src;
 280   e_route->dst_gateway = ASroute->gw_dst;
 281   xbt_assert(current_routing->parse_bypassroute,
 282              "Bypassing mechanism not implemented by routing '%s'",
 283              current_routing->name);
 284   current_routing->parse_bypassroute(current_routing, ASroute->src, ASroute->dst, e_route);
 285 }
 286
 287 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
 288 {
 289   tmgr_trace_t tmgr_trace;
 290   if (!trace->file || strcmp(trace->file, "") != 0) {
 291     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 292   } else if (strcmp(trace->pc_data, "") == 0) {
 293     tmgr_trace = NULL;
 294   } else {
 295     tmgr_trace =
 296           tmgr_trace_new_from_string(trace->id, trace->pc_data,
 297                                      trace->periodicity);
 298   }
 299   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
 300 }
 301
 302 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
 303 {
 304   xbt_assert(xbt_dict_get_or_null
 305               (traces_set_list, trace_connect->trace),
 306               "Cannot connect trace %s to %s: trace unknown",
 307               trace_connect->trace,
 308               trace_connect->element);
 309
 310   switch (trace_connect->kind) {
 311   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
 312     xbt_dict_set(trace_connect_list_host_avail,
 313         trace_connect->trace,
 314         xbt_strdup(trace_connect->element), NULL);
 315     break;
 316   case SURF_TRACE_CONNECT_KIND_POWER:
 317     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
 318         xbt_strdup(trace_connect->element), NULL);
 319     break;
 320   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
 321     xbt_dict_set(trace_connect_list_link_avail,
 322         trace_connect->trace,
 323         xbt_strdup(trace_connect->element), NULL);
 324     break;
 325   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
 326     xbt_dict_set(trace_connect_list_bandwidth,
 327         trace_connect->trace,
 328         xbt_strdup(trace_connect->element), NULL);
 329     break;
 330   case SURF_TRACE_CONNECT_KIND_LATENCY:
 331     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
 332         xbt_strdup(trace_connect->element), NULL);
 333     break;
 334   default:
 335     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
 336         trace_connect->trace, trace_connect->element);
 337     break;
 338   }
 339 }
 340
 341 /**
 342  * \brief Make a new routing component to the platform
 343  *
 344  * Add a new autonomous system to the platform. Any elements (such as host,
 345  * router or sub-AS) added after this call and before the corresponding call
 346  * to sg_platf_new_AS_close() will be added to this AS.
 347  *
 348  * Once this function was called, the configuration concerning the used
 349  * models cannot be changed anymore.
 350  *
 351  * @param AS_id name of this autonomous system. Must be unique in the platform
 352  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 353  */
 354 void routing_AS_begin(const char *AS_id, int wanted_routing_type)
 355 {
 356   XBT_DEBUG("routing_AS_begin");
 357   AS_t new_as;
 358   routing_model_description_t model = NULL;
 359
 360   xbt_assert(!xbt_lib_get_or_null
 361              (as_router_lib, AS_id, ROUTING_ASR_LEVEL),
 362              "The AS \"%s\" already exists", AS_id);
 363
 364   /* search the routing model */
 365   switch(wanted_routing_type){
 366     case A_surfxml_AS_routing_Cluster:       model = &routing_models[SURF_MODEL_CLUSTER];break;
 367     case A_surfxml_AS_routing_Dijkstra:      model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 368     case A_surfxml_AS_routing_DijkstraCache: model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 369     case A_surfxml_AS_routing_Floyd:         model = &routing_models[SURF_MODEL_FLOYD];break;
 370     case A_surfxml_AS_routing_Full:          model = &routing_models[SURF_MODEL_FULL];break;
 371     case A_surfxml_AS_routing_None:          model = &routing_models[SURF_MODEL_NONE];break;
 372     case A_surfxml_AS_routing_RuleBased:     model = &routing_models[SURF_MODEL_RULEBASED];break;
 373     case A_surfxml_AS_routing_Vivaldi:       model = &routing_models[SURF_MODEL_VIVALDI];break;
 374     default: xbt_die("Not a valid model!!!");
 375     break;
 376   }
 377
 378   /* make a new routing component */
 379   new_as = (AS_t) model->create();
 380   new_as->model_desc = model;
 381   new_as->hierarchy = SURF_ROUTING_NULL;
 382   new_as->name = xbt_strdup(AS_id);
 383
 384   sg_routing_edge_t info = NULL;
 385   info = xbt_new0(s_network_element_t, 1);
 386
 387   if (current_routing == NULL && routing_platf->root == NULL) {
 388
 389     /* it is the first one */
 390     new_as->routing_father = NULL;
 391     routing_platf->root = new_as;
 392     info->id = -1;
 393   } else if (current_routing != NULL && routing_platf->root != NULL) {
 394
 395     xbt_assert(!xbt_dict_get_or_null
 396                (current_routing->routing_sons, AS_id),
 397                "The AS \"%s\" already exists", AS_id);
 398     /* it is a part of the tree */
 399     new_as->routing_father = current_routing;
 400     /* set the father behavior */
 401     if (current_routing->hierarchy == SURF_ROUTING_NULL)
 402       current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
 403     /* add to the sons dictionary */
 404     xbt_dict_set(current_routing->routing_sons, AS_id,
 405                  (void *) new_as, NULL);
 406     /* add to the father element list */
 407     info->id = current_routing->parse_AS(current_routing, (void *) info);
 408   } else {
 409     THROWF(arg_error, 0, "All defined components must be belong to a AS");
 410   }
 411
 412   info->rc_component = new_as->routing_father;
 413   info->rc_type = SURF_NETWORK_ELEMENT_AS;
 414   info->name = new_as->name;
 415
 416   xbt_lib_set(as_router_lib, new_as->name, ROUTING_ASR_LEVEL,
 417               (void *) info);
 418   XBT_DEBUG("Having set name '%s' id '%d'",new_as->name,info->id);
 419
 420   /* set the new current component of the tree */
 421   current_routing = new_as;
 422   current_routing->net_elem = info;
 423
 424 }
 425
 426 /**
 427  * \brief Specify that the current description of AS is finished
 428  *
 429  * Once you've declared all the content of your AS, you have to close
 430  * it with this call. Your AS is not usable until you call this function.
 431  *
 432  * @fixme: this call is not as robust as wanted: bad things WILL happen
 433  * if you call it twice for the same AS, or if you forget calling it, or
 434  * even if you add stuff to a closed AS
 435  *
 436  */
 437 void routing_AS_end()
 438 {
 439
 440   if (current_routing == NULL) {
 441     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 442   } else {
 443     if (current_routing->model_desc->end)
 444       current_routing->model_desc->end(current_routing);
 445     current_routing = current_routing->routing_father;
 446   }
 447 }
 448
 449 /* Aux Business methods */
 450
 451 /**
 452  * \brief Get the AS father and the first elements of the chain
 453  *
 454  * \param src the source host name
 455  * \param dst the destination host name
 456  *
 457  * Get the common father of the to processing units, and the first different
 458  * father in the chain
 459  */
 460 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
 461                             AS_t * res_father,
 462                             AS_t * res_src,
 463                             AS_t * res_dst)
 464 {
 465   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 466 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 467   AS_t src_as, dst_as;
 468   AS_t path_src[ELEMENTS_FATHER_MAXDEPTH];
 469   AS_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
 470   int index_src = 0;
 471   int index_dst = 0;
 472   AS_t current;
 473   AS_t current_src;
 474   AS_t current_dst;
 475   AS_t father;
 476
 477   /* (1) find the as where the src and dst are located */
 478   sg_routing_edge_t src_data = src;
 479   sg_routing_edge_t dst_data = dst;
 480   src_as = src_data->rc_component;
 481   dst_as = dst_data->rc_component;
 482 #ifndef NDEBUG
 483   char* src_name = src_data->name;
 484   char* dst_name = dst_data->name;
 485 #endif
 486
 487   xbt_assert(src_as && dst_as,
 488              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 489
 490   /* (2) find the path to the root routing component */
 491   for (current = src_as; current != NULL; current = current->routing_father) {
 492     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 493       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 494     path_src[index_src++] = current;
 495   }
 496   for (current = dst_as; current != NULL; current = current->routing_father) {
 497     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 498       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 499     path_dst[index_dst++] = current;
 500   }
 501
 502   /* (3) find the common father */
 503   do {
 504     current_src = path_src[--index_src];
 505     current_dst = path_dst[--index_dst];
 506   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 507
 508   /* (4) they are not in the same routing component, make the path */
 509   if (current_src == current_dst)
 510     father = current_src;
 511   else
 512     father = path_src[index_src + 1];
 513
 514   /* (5) result generation */
 515   *res_father = father;         /* first the common father of src and dst */
 516   *res_src = current_src;       /* second the first different father of src */
 517   *res_dst = current_dst;       /* three  the first different father of dst */
 518
 519 #undef ELEMENTS_FATHER_MAXDEPTH
 520 }
 521
 522 /* Global Business methods */
 523
 524 /**
 525  * \brief Recursive function for get_route_latency
 526  *
 527  * \param src the source host name
 528  * \param dst the destination host name
 529  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 530  * \param *latency the latency, if needed
 531  *
 532  * This function is called by "get_route" and "get_latency". It allows to walk
 533  * recursively through the ASes tree.
 534  */
 535 static void _get_route_and_latency(sg_routing_edge_t src, sg_routing_edge_t dst,
 536                                    xbt_dynar_t * links, double *latency)
 537 {
 538   s_route_t route;
 539   memset(&route,0,sizeof(route));
 540
 541   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->name, dst->name);
 542   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 543
 544   /* Find how src and dst are interconnected */
 545   AS_t common_father, src_father, dst_father;
 546   elements_father(src, dst, &common_father, &src_father, &dst_father);
 547   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 548       common_father->name,src_father->name,dst_father->name);
 549
 550   /* Check whether a direct bypass is defined */
 551   route_t e_route_bypass = NULL;
 552   if (common_father->get_bypass_route)
 553     e_route_bypass = common_father->get_bypass_route(common_father, src, dst, latency);
 554
 555   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 556   if (e_route_bypass) {
 557     xbt_dynar_merge(links, &e_route_bypass->link_list);
 558     generic_free_route(e_route_bypass);
 559     return;
 560   }
 561
 562   /* If src and dst are in the same AS, life is good */
 563   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 564     route.link_list = *links;
 565     common_father->get_route_and_latency(common_father, src, dst, &route,latency);
 566     // if vivaldi latency+=vivaldi(src,dst)
 567     return;
 568   }
 569
 570   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 571
 572   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 573   // Find the net_card corresponding to father
 574   sg_routing_edge_t src_father_net_elm = src_father->net_elem;
 575   sg_routing_edge_t dst_father_net_elm = dst_father->net_elem;
 576
 577   common_father->get_route_and_latency(common_father,
 578                                        src_father_net_elm, dst_father_net_elm,
 579                                        &route, latency);
 580
 581   xbt_assert((route.src_gateway != NULL) && (route.dst_gateway != NULL),
 582       "bad gateways for route from \"%s\" to \"%s\"", src->name, dst->name);
 583
 584   sg_routing_edge_t src_gateway_net_elm = route.src_gateway;
 585   sg_routing_edge_t dst_gateway_net_elm = route.dst_gateway;
 586
 587   /* If source gateway is not our source, we have to recursively find our way up to this point */
 588   if (src != src_gateway_net_elm)
 589     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 590   xbt_dynar_merge(links, &route.link_list);
 591
 592   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 593   if (dst_gateway_net_elm != dst)
 594     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 595
 596   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
 597 }
 598
 599 /**
 600  * \brief Find a route between hosts
 601  *
 602  * \param src the network_element_t for src host
 603  * \param dst the network_element_t for dst host
 604  * \param route where to store the list of links.
 605  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 606  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 607  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 608  * \pre route!=NULL
 609  *
 610  * walk through the routing components tree and find a route between hosts
 611  * by calling the differents "get_route" functions in each routing component.
 612  */
 613 void routing_get_route_and_latency(sg_routing_edge_t src,
 614                                    sg_routing_edge_t dst,
 615                                    xbt_dynar_t * route, double *latency)
 616 {
 617   XBT_DEBUG("routing_get_route_and_latency from %s to %s",src->name,dst->name);
 618   if (!*route) {
 619     xbt_dynar_reset(routing_platf->last_route);
 620     *route = routing_platf->last_route;
 621   }
 622
 623   _get_route_and_latency(src, dst, route, latency);
 624
 625   xbt_assert(!latency || *latency >= 0.0,
 626              "negative latency on route between \"%s\" and \"%s\"", src->name, dst->name);
 627 }
 628
 629 static xbt_dynar_t recursive_get_onelink_routes(AS_t rc)
 630 {
 631   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
 632
 633   //adding my one link routes
 634   xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
 635   if (onelink_mine)
 636     xbt_dynar_merge(&ret,&onelink_mine);
 637
 638   //recursing
 639   char *key;
 640   xbt_dict_cursor_t cursor = NULL;
 641   AS_t rc_child;
 642   xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
 643     xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
 644     if (onelink_child)
 645       xbt_dynar_merge(&ret,&onelink_child);
 646   }
 647   return ret;
 648 }
 649
 650 static xbt_dynar_t get_onelink_routes(void)
 651 {
 652   return recursive_get_onelink_routes(routing_platf->root);
 653 }
 654
 655 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 656 {
 657   sg_routing_edge_t rc = sg_routing_edge_by_name_or_null(name);
 658   if (rc)
 659     return rc->rc_type;
 660
 661   return SURF_NETWORK_ELEMENT_NULL;
 662 }
 663
 664 /**
 665  * \brief Generic method: create the global routing schema
 666  *
 667  * Make a global routing structure and set all the parsing functions.
 668  */
 669 void routing_model_create( void *loopback)
 670 {
 671   /* config the uniq global routing */
 672   routing_platf = xbt_new0(s_routing_platf_t, 1);
 673   routing_platf->root = NULL;
 674   routing_platf->get_onelink_routes = get_onelink_routes;
 675   routing_platf->loopback = loopback;
 676   routing_platf->last_route = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 677   /* no current routing at moment */
 678   current_routing = NULL;
 679 }
 680
 681
 682 /* ************************************************** */
 683 /* ********** PATERN FOR NEW ROUTING **************** */
 684
 685 /* The minimal configuration of a new routing model need the next functions,
 686  * also you need to set at the start of the file, the new model in the model
 687  * list. Remember keep the null ending of the list.
 688  */
 689 /*** Routing model structure ***/
 690 // typedef struct {
 691 //   s_routing_component_t generic_routing;
 692 //   /* things that your routing model need */
 693 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 694
 695 /*** Parse routing model functions ***/
 696 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 697 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 698 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 699 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 700 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 701
 702 /*** Business methods ***/
 703 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 704 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 705 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 706
 707 /*** Creation routing model functions ***/
 708 // static void* model_NEW_create(void) {
 709 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 710 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 711 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 712 //   new_component->generic_routing.set_route = model_NEW_set_route;
 713 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 714 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 715 //   new_component->generic_routing.get_route = NEW_get_route;
 716 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 717 //   new_component->generic_routing.finalize = NEW_finalize;
 718 //   /* initialization of internal structures */
 719 //   return new_component;
 720 // } /* mandatory */
 721 // static void  model_NEW_load(void) {}   /* mandatory */
 722 // static void  model_NEW_unload(void) {} /* mandatory */
 723 // static void  model_NEW_end(void) {}    /* mandatory */
 724
 725 /* ************************************************************************** */
 726 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 727
 728 void routing_cluster_add_backbone(void* bb) {
 729   xbt_assert(current_routing->model_desc == &routing_models[SURF_MODEL_CLUSTER],
 730         "You have to be in model Cluster to use tag backbone!");
 731   xbt_assert(!((as_cluster_t)current_routing)->backbone,"The backbone link is already defined!");
 732   ((as_cluster_t)current_routing)->backbone = bb;
 733   XBT_DEBUG("Add a backbone to AS '%s'",current_routing->name);
 734 }
 735
 736 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 737 {
 738   int start, end, i;
 739   char *groups , *host_id , *link_id = NULL;
 740   unsigned int iter;
 741   xbt_dynar_t radical_elements;
 742   xbt_dynar_t radical_ends;
 743
 744   //Make all hosts
 745   radical_elements = xbt_str_split(cabinet->radical, ",");
 746   xbt_dynar_foreach(radical_elements, iter, groups) {
 747
 748     radical_ends = xbt_str_split(groups, "-");
 749     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 750
 751     switch (xbt_dynar_length(radical_ends)) {
 752     case 1:
 753       end = start;
 754       break;
 755     case 2:
 756       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 757       break;
 758     default:
 759       surf_parse_error("Malformed radical");
 760       break;
 761     }
 762     s_sg_platf_host_cbarg_t host;
 763     memset(&host, 0, sizeof(host));
 764     host.initial_state = SURF_RESOURCE_ON;
 765     host.power_peak = cabinet->power;
 766     host.power_scale = 1.0;
 767     host.core_amount = 1;
 768
 769     s_sg_platf_link_cbarg_t link;
 770     memset(&link, 0, sizeof(link));
 771     link.state = SURF_RESOURCE_ON;
 772     link.policy = SURF_LINK_FULLDUPLEX;
 773     link.latency = cabinet->lat;
 774     link.bandwidth = cabinet->bw;
 775
 776     s_sg_platf_host_link_cbarg_t host_link;
 777     memset(&host_link, 0, sizeof(host_link));
 778
 779     for (i = start; i <= end; i++) {
 780       host_id = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 781       link_id = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 782       host.id = host_id;
 783       link.id = link_id;
 784       sg_platf_new_host(&host);
 785       sg_platf_new_link(&link);
 786
 787       char* link_up = bprintf("%s_UP",link_id);
 788       char* link_down = bprintf("%s_DOWN",link_id);
 789       host_link.id = host_id;
 790       host_link.link_up = link_up;
 791       host_link.link_down= link_down;
 792       sg_platf_new_host_link(&host_link);
 793
 794       free(host_id);
 795       free(link_id);
 796       free(link_up);
 797       free(link_down);
 798     }
 799
 800     xbt_dynar_free(&radical_ends);
 801   }
 802   xbt_dynar_free(&radical_elements);
 803 }
 804
 805 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
 806 {
 807   char *host_id, *groups, *link_id = NULL;
 808   xbt_dict_t patterns = NULL;
 809
 810   s_sg_platf_host_cbarg_t host;
 811   s_sg_platf_link_cbarg_t link;
 812
 813   unsigned int iter;
 814   int start, end, i;
 815   xbt_dynar_t radical_elements;
 816   xbt_dynar_t radical_ends;
 817
 818   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 819       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 820     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 821     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 822     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 823     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 824   }
 825
 826   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 827   sg_platf_new_AS_begin(cluster->id, A_surfxml_AS_routing_Cluster);
 828
 829   current_routing->link_up_down_list
 830             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 831
 832   //Make all hosts
 833   radical_elements = xbt_str_split(cluster->radical, ",");
 834   xbt_dynar_foreach(radical_elements, iter, groups) {
 835
 836     radical_ends = xbt_str_split(groups, "-");
 837     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 838
 839     switch (xbt_dynar_length(radical_ends)) {
 840     case 1:
 841       end = start;
 842       break;
 843     case 2:
 844       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 845       break;
 846     default:
 847       surf_parse_error("Malformed radical");
 848       break;
 849     }
 850     for (i = start; i <= end; i++) {
 851       host_id =
 852           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 853       link_id = bprintf("%s_link_%d", cluster->id, i);
 854
 855       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
 856
 857       memset(&host, 0, sizeof(host));
 858       host.id = host_id;
 859       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 860         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 861         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 862         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 863         host.power_trace = tmgr_trace_new_from_file(avail_file);
 864         xbt_free(avail_file);
 865       } else {
 866         XBT_DEBUG("\tavailability_file=\"\"");
 867       }
 868
 869       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 870         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 871         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 872         host.state_trace = tmgr_trace_new_from_file(avail_file);
 873         xbt_free(avail_file);
 874       } else {
 875         XBT_DEBUG("\tstate_file=\"\"");
 876       }
 877
 878       host.power_peak = cluster->power;
 879       host.power_scale = 1.0;
 880       host.core_amount = cluster->core_amount;
 881       host.initial_state = SURF_RESOURCE_ON;
 882       host.coord = "";
 883       sg_platf_new_host(&host);
 884       XBT_DEBUG("</host>");
 885
 886       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 887                 cluster->bw, cluster->lat);
 888
 889       memset(&link, 0, sizeof(link));
 890       link.id = link_id;
 891       link.bandwidth = cluster->bw;
 892       link.latency = cluster->lat;
 893       link.state = SURF_RESOURCE_ON;
 894       link.policy = cluster->sharing_policy;
 895       sg_platf_new_link(&link);
 896
 897       s_surf_parsing_link_up_down_t info;
 898
 899       if (link.policy == SURF_LINK_FULLDUPLEX) {
 900         char *tmp_link = bprintf("%s_UP", link_id);
 901         info.link_up =
 902             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 903         free(tmp_link);
 904         tmp_link = bprintf("%s_DOWN", link_id);
 905         info.link_down =
 906             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 907         free(tmp_link);
 908       } else {
 909         info.link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
 910         info.link_down = info.link_up;
 911       }
 912       xbt_dynar_push(current_routing->link_up_down_list,&info);
 913       xbt_free(link_id);
 914       xbt_free(host_id);
 915     }
 916
 917     xbt_dynar_free(&radical_ends);
 918   }
 919   xbt_dynar_free(&radical_elements);
 920
 921   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 922   // and it's very useful to connect clusters together
 923   XBT_DEBUG(" ");
 924   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 925   char *newid = NULL;
 926   s_sg_platf_router_cbarg_t router;
 927   memset(&router, 0, sizeof(router));
 928   router.id = cluster->router_id;
 929   router.coord = "";
 930   if (!router.id || !strcmp(router.id, ""))
 931     router.id = newid =
 932         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
 933                 cluster->suffix);
 934   sg_platf_new_router(&router);
 935   free(newid);
 936
 937   //Make the backbone
 938   if ((cluster->bb_bw != 0) && (cluster->bb_lat != 0)) {
 939     char *link_backbone = bprintf("%s_backbone", cluster->id);
 940     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
 941               cluster->bb_bw, cluster->bb_lat);
 942
 943     memset(&link, 0, sizeof(link));
 944     link.id = link_backbone;
 945     link.bandwidth = cluster->bb_bw;
 946     link.latency = cluster->bb_lat;
 947     link.state = SURF_RESOURCE_ON;
 948     link.policy = cluster->bb_sharing_policy;
 949
 950     sg_platf_new_link(&link);
 951
 952     routing_cluster_add_backbone(xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
 953
 954     free(link_backbone);
 955   }
 956
 957   XBT_DEBUG("</AS>");
 958   sg_platf_new_AS_end();
 959   XBT_DEBUG(" ");
 960   xbt_dict_free(&patterns); // no op if it were never set
 961 }
 962
 963 static void routing_parse_postparse(void) {
 964   xbt_dict_free(&random_value);
 965 }
 966
 967 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
 968 {
 969   char *host_id = NULL;
 970   char *link_id;
 971
 972   XBT_DEBUG(" ");
 973   host_id = HOST_PEER(peer->id);
 974   link_id = LINK_PEER(peer->id);
 975
 976   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
 977   s_sg_platf_host_cbarg_t host;
 978   memset(&host, 0, sizeof(host));
 979   host.initial_state = SURF_RESOURCE_ON;
 980   host.id = host_id;
 981   host.power_peak = peer->power;
 982   host.power_scale = 1.0;
 983   host.power_trace = peer->availability_trace;
 984   host.state_trace = peer->state_trace;
 985   host.core_amount = 1;
 986   host.coord = peer->coord;
 987   sg_platf_new_host(&host);
 988
 989   s_sg_platf_link_cbarg_t link;
 990   memset(&link, 0, sizeof(link));
 991   link.state = SURF_RESOURCE_ON;
 992   link.policy = SURF_LINK_SHARED;
 993   link.latency = peer->lat;
 994
 995   char* link_up = bprintf("%s_UP",link_id);
 996   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
 997             peer->bw_out, peer->lat);
 998   link.id = link_up;
 999   link.bandwidth = peer->bw_out;
1000   sg_platf_new_link(&link);
1001
1002   char* link_down = bprintf("%s_DOWN",link_id);
1003   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1004             peer->bw_in, peer->lat);
1005   link.id = link_down;
1006   link.bandwidth = peer->bw_in;
1007   sg_platf_new_link(&link);
1008
1009   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1010   s_sg_platf_host_link_cbarg_t host_link;
1011   memset(&host_link, 0, sizeof(host_link));
1012   host_link.id = host_id;
1013   host_link.link_up = link_up;
1014   host_link.link_down= link_down;
1015   sg_platf_new_host_link(&host_link);
1016
1017   XBT_DEBUG(" ");
1018
1019   //xbt_dynar_free(&tab_elements_num);
1020   free(host_id);
1021   free(link_id);
1022   free(link_up);
1023   free(link_down);
1024 }
1025
1026 static void routing_parse_Srandom(void)
1027 {
1028   double mean, std, min, max, seed;
1029   char *random_id = A_surfxml_random_id;
1030   char *random_radical = A_surfxml_random_radical;
1031   char *rd_name = NULL;
1032   char *rd_value;
1033   mean = surf_parse_get_double(A_surfxml_random_mean);
1034   std = surf_parse_get_double(A_surfxml_random_std_deviation);
1035   min = surf_parse_get_double(A_surfxml_random_min);
1036   max = surf_parse_get_double(A_surfxml_random_max);
1037   seed = surf_parse_get_double(A_surfxml_random_seed);
1038
1039   double res = 0;
1040   int i = 0;
1041   random_data_t random = xbt_new0(s_random_data_t, 1);
1042   char *tmpbuf;
1043
1044   xbt_dynar_t radical_elements;
1045   unsigned int iter;
1046   char *groups;
1047   int start, end;
1048   xbt_dynar_t radical_ends;
1049
1050   switch (A_surfxml_random_generator) {
1051   case AU_surfxml_random_generator:
1052   case A_surfxml_random_generator_NONE:
1053     random->generator = NONE;
1054     break;
1055   case A_surfxml_random_generator_DRAND48:
1056     random->generator = DRAND48;
1057     break;
1058   case A_surfxml_random_generator_RAND:
1059     random->generator = RAND;
1060     break;
1061   case A_surfxml_random_generator_RNGSTREAM:
1062     random->generator = RNGSTREAM;
1063     break;
1064   default:
1065     surf_parse_error("Invalid random generator");
1066     break;
1067   }
1068   random->seed = seed;
1069   random->min = min;
1070   random->max = max;
1071
1072   /* Check user stupidities */
1073   if (max < min)
1074     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1075   if (mean < min)
1076     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1077   if (mean > max)
1078     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1079
1080   /* normalize the mean and standard deviation before storing */
1081   random->mean = (mean - min) / (max - min);
1082   random->std = std / (max - min);
1083
1084   if (random->mean * (1 - random->mean) < random->std * random->std)
1085     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1086            random->mean, random->std);
1087
1088   XBT_DEBUG
1089       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1090        random_id, random->min, random->max, random->mean, random->std,
1091        (int)random->generator, random->seed, random_radical);
1092
1093   if (!random_value)
1094     random_value = xbt_dict_new_homogeneous(free);
1095
1096   if (!strcmp(random_radical, "")) {
1097     res = random_generate(random);
1098     rd_value = bprintf("%f", res);
1099     xbt_dict_set(random_value, random_id, rd_value, NULL);
1100   } else {
1101     radical_elements = xbt_str_split(random_radical, ",");
1102     xbt_dynar_foreach(radical_elements, iter, groups) {
1103       radical_ends = xbt_str_split(groups, "-");
1104       switch (xbt_dynar_length(radical_ends)) {
1105       case 1:
1106         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1107                    "Custom Random '%s' already exists !", random_id);
1108         res = random_generate(random);
1109         tmpbuf =
1110             bprintf("%s%d", random_id,
1111                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1112         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1113         xbt_free(tmpbuf);
1114         break;
1115
1116       case 2:
1117         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1118         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1119         for (i = start; i <= end; i++) {
1120           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1121                      "Custom Random '%s' already exists !", bprintf("%s%d",
1122                                                                     random_id,
1123                                                                     i));
1124           res = random_generate(random);
1125           tmpbuf = bprintf("%s%d", random_id, i);
1126           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1127           xbt_free(tmpbuf);
1128         }
1129         break;
1130       default:
1131         XBT_CRITICAL("Malformed radical");
1132         break;
1133       }
1134       res = random_generate(random);
1135       rd_name = bprintf("%s_router", random_id);
1136       rd_value = bprintf("%f", res);
1137       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1138
1139       xbt_dynar_free(&radical_ends);
1140     }
1141     free(rd_name);
1142     xbt_dynar_free(&radical_elements);
1143   }
1144 }
1145
1146 void routing_register_callbacks()
1147 {
1148   sg_platf_host_add_cb(parse_S_host);
1149   sg_platf_router_add_cb(parse_S_router);
1150   sg_platf_host_link_add_cb(parse_S_host_link);
1151   sg_platf_route_add_cb(parse_E_route);
1152   sg_platf_ASroute_add_cb(parse_E_ASroute);
1153   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1154   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1155
1156   sg_platf_cluster_add_cb(routing_parse_cluster);
1157   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1158
1159   sg_platf_peer_add_cb(routing_parse_peer);
1160   sg_platf_postparse_add_cb(routing_parse_postparse);
1161
1162   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1163   sg_platf_AS_end_add_cb(routing_AS_end);
1164   sg_platf_AS_begin_add_cb(routing_AS_begin);
1165
1166   sg_platf_trace_add_cb(routing_parse_trace);
1167   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1168
1169 #ifdef HAVE_TRACING
1170   instr_routing_define_callbacks();
1171 #endif
1172 }
1173
1174 /**
1175  * \brief Recursive function for finalize
1176  *
1177  * \param rc the source host name
1178  *
1179  * This fuction is call by "finalize". It allow to finalize the
1180  * AS or routing components. It delete all the structures.
1181  */
1182 static void finalize_rec(AS_t as) {
1183   xbt_dict_cursor_t cursor = NULL;
1184   char *key;
1185   AS_t elem;
1186
1187   xbt_dict_foreach(as->routing_sons, cursor, key, elem) {
1188     finalize_rec(elem);
1189   }
1190
1191   as->finalize(as);
1192 }
1193
1194 /** \brief Frees all memory allocated by the routing module */
1195 void routing_exit(void) {
1196   if (!routing_platf)
1197     return;
1198   xbt_dynar_free(&routing_platf->last_route);
1199   finalize_rec(routing_platf->root);
1200   xbt_free(routing_platf);
1201 }