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