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
  50 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  51
  52 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  53 static void routing_parse_Srandom(void);        /* random bypass */
  54
  55 static char *replace_random_parameter(char *chaine);
  56 static void routing_parse_postparse(void);
  57
  58 /* this lines are only for replace use like index in the model table */
  59 typedef enum {
  60   SURF_MODEL_FULL = 0,
  61   SURF_MODEL_FLOYD,
  62   SURF_MODEL_DIJKSTRA,
  63   SURF_MODEL_DIJKSTRACACHE,
  64   SURF_MODEL_NONE,
  65   SURF_MODEL_RULEBASED,
  66   SURF_MODEL_VIVALDI,
  67   SURF_MODEL_CLUSTER
  68 } e_routing_types;
  69
  70 struct s_model_type routing_models[] = {
  71   {"Full",
  72    "Full routing data (fast, large memory requirements, fully expressive)",
  73    model_full_create, NULL,NULL, model_full_end},
  74   {"Floyd",
  75    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  76    model_floyd_create, NULL,NULL, model_floyd_end},
  77   {"Dijkstra",
  78    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
  79    model_dijkstra_create, NULL,NULL, model_dijkstra_both_end},
  80   {"DijkstraCache",
  81    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
  82    model_dijkstracache_create, NULL,NULL, model_dijkstra_both_end},
  83   {"none", "No routing (usable with Constant network only)",
  84    model_none_create, NULL, NULL, NULL},
  85   {"RuleBased", "Rule-Based routing data (...)",
  86    model_rulebased_create, NULL, NULL, NULL},
  87   {"Vivaldi", "Vivaldi routing",
  88    model_vivaldi_create, NULL, NULL, NULL},
  89   {"Cluster", "Cluster routing",
  90    model_cluster_create, NULL, NULL, NULL},
  91   {NULL, NULL, NULL, NULL, NULL, NULL}
  92 };
  93
  94 /**
  95  * \brief Add a "host" to the network element list
  96  */
  97 static void parse_S_host(sg_platf_host_cbarg_t host)
  98 {
  99   network_element_info_t info = NULL;
 100   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 101     current_routing->hierarchy = SURF_ROUTING_BASE;
 102   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
 103              "Reading a host, processing unit \"%s\" already exists", host->id);
 104
 105   (*(current_routing->parse_PU)) (current_routing, host->id);
 106   info = xbt_new0(s_network_element_info_t, 1);
 107   info->rc_component = current_routing;
 108   info->rc_type = SURF_NETWORK_ELEMENT_HOST;
 109   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
 110   if (host->coord && strcmp(host->coord, "")) {
 111     if (!COORD_HOST_LEVEL)
 112       xbt_die
 113           ("To use coordinates, you must set configuration 'coordinates' to 'yes'");
 114     xbt_dynar_t ctn = xbt_str_split_str(host->coord, " ");
 115     xbt_dynar_shrink(ctn, 0);
 116     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
 117   }
 118 }
 119
 120 /**
 121  * \brief Add a "router" to the network element list
 122  */
 123 static void parse_S_router(sg_platf_router_cbarg_t router)
 124 {
 125   network_element_info_t info = NULL;
 126   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 127     current_routing->hierarchy = SURF_ROUTING_BASE;
 128   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 129              "Reading a router, processing unit \"%s\" already exists",
 130              router->id);
 131
 132   (*(current_routing->parse_PU)) (current_routing, router->id);
 133   info = xbt_new0(s_network_element_info_t, 1);
 134   info->rc_component = current_routing;
 135   info->rc_type = SURF_NETWORK_ELEMENT_ROUTER;
 136
 137   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 138   if (strcmp(router->coord, "")) {
 139     if (!COORD_ASR_LEVEL)
 140       xbt_die
 141           ("To use coordinates, you must set configuration 'coordinates' to 'yes'");
 142     xbt_dynar_t ctn = xbt_str_split_str(router->coord, " ");
 143     xbt_dynar_shrink(ctn, 0);
 144     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 145   }
 146 }
 147
 148
 149 /**
 150  * \brief Set the end points for a route
 151  */
 152 static void routing_parse_S_route(void)
 153 {
 154   if (src != NULL && dst != NULL && link_list != NULL)
 155     THROWF(arg_error, 0, "Route between %s to %s can not be defined",
 156            A_surfxml_route_src, A_surfxml_route_dst);
 157   src = A_surfxml_route_src;
 158   dst = A_surfxml_route_dst;
 159   xbt_assert(strlen(src) > 0 || strlen(dst) > 0,
 160              "Some limits are null in the route between \"%s\" and \"%s\"",
 161              src, dst);
 162   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 163 }
 164
 165 /**
 166  * \brief Set the end points and gateways for a ASroute
 167  */
 168 static void routing_parse_S_ASroute(void)
 169 {
 170   if (src != NULL && dst != NULL && link_list != NULL)
 171     THROWF(arg_error, 0, "Route between %s to %s can not be defined",
 172            A_surfxml_ASroute_src, A_surfxml_ASroute_dst);
 173   src = A_surfxml_ASroute_src;
 174   dst = A_surfxml_ASroute_dst;
 175   gw_src = A_surfxml_ASroute_gw_src;
 176   gw_dst = A_surfxml_ASroute_gw_dst;
 177   xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
 178              || strlen(gw_dst) > 0,
 179              "Some limits are null in the route between \"%s\" and \"%s\"",
 180              src, dst);
 181   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 182 }
 183
 184 /**
 185  * \brief Set the end points for a bypassRoute
 186  */
 187 static void routing_parse_S_bypassRoute(void)
 188 {
 189   if (src != NULL && dst != NULL && link_list != NULL)
 190     THROWF(arg_error, 0,
 191            "Bypass Route between %s to %s can not be defined",
 192            A_surfxml_bypassRoute_src, A_surfxml_bypassRoute_dst);
 193   src = A_surfxml_bypassRoute_src;
 194   dst = A_surfxml_bypassRoute_dst;
 195   gw_src = A_surfxml_bypassRoute_gw_src;
 196   gw_dst = A_surfxml_bypassRoute_gw_dst;
 197   xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
 198              || strlen(gw_dst) > 0,
 199              "Some limits are null in the route between \"%s\" and \"%s\"",
 200              src, dst);
 201   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 202 }
 203
 204 /**
 205  * \brief Set a new link on the actual list of link for a route or ASroute from XML
 206  */
 207
 208 static void routing_parse_link_ctn(void)
 209 {
 210   char *link_id;
 211   switch (A_surfxml_link_ctn_direction) {
 212   case AU_surfxml_link_ctn_direction:
 213   case A_surfxml_link_ctn_direction_NONE:
 214     link_id = xbt_strdup(A_surfxml_link_ctn_id);
 215     break;
 216   case A_surfxml_link_ctn_direction_UP:
 217     link_id = bprintf("%s_UP", A_surfxml_link_ctn_id);
 218     break;
 219   case A_surfxml_link_ctn_direction_DOWN:
 220     link_id = bprintf("%s_DOWN", A_surfxml_link_ctn_id);
 221     break;
 222   }
 223   xbt_dynar_push(link_list, &link_id);
 224 }
 225
 226 /**
 227  * \brief Store the route by calling the set_route function of the current routing component
 228  */
 229 static void routing_parse_E_route(void)
 230 {
 231   name_route_extended_t route = xbt_new0(s_name_route_extended_t, 1);
 232   route->generic_route.link_list = link_list;
 233   xbt_assert(current_routing->parse_route,
 234              "no defined method \"set_route\" in \"%s\"",
 235              current_routing->name);
 236   (*(current_routing->parse_route)) (current_routing, src, dst, route);
 237   link_list = NULL;
 238   src = NULL;
 239   dst = NULL;
 240 }
 241
 242 /**
 243  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 244  */
 245 static void routing_parse_E_ASroute(void)
 246 {
 247   name_route_extended_t e_route = xbt_new0(s_name_route_extended_t, 1);
 248   e_route->generic_route.link_list = link_list;
 249   e_route->src_gateway = xbt_strdup(gw_src);
 250   e_route->dst_gateway = xbt_strdup(gw_dst);
 251   xbt_assert(current_routing->parse_ASroute,
 252              "no defined method \"set_ASroute\" in \"%s\"",
 253              current_routing->name);
 254   (*(current_routing->parse_ASroute)) (current_routing, src, dst, e_route);
 255   link_list = NULL;
 256   src = NULL;
 257   dst = NULL;
 258   gw_src = NULL;
 259   gw_dst = NULL;
 260 }
 261
 262 /**
 263  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 264  */
 265 static void routing_parse_E_bypassRoute(void)
 266 {
 267   route_extended_t e_route = xbt_new0(s_route_extended_t, 1);
 268   e_route->generic_route.link_list = link_list;
 269   e_route->src_gateway = xbt_strdup(gw_src);
 270   e_route->dst_gateway = xbt_strdup(gw_dst);
 271   xbt_assert(current_routing->parse_bypassroute,
 272              "Bypassing mechanism not implemented by routing '%s'",
 273              current_routing->name);
 274   (*(current_routing->parse_bypassroute)) (current_routing, src, dst, e_route);
 275   link_list = NULL;
 276   src = NULL;
 277   dst = NULL;
 278   gw_src = NULL;
 279   gw_dst = NULL;
 280 }
 281
 282 /**
 283  * \brief Make a new routing component to the platform
 284  *
 285  * Add a new autonomous system to the platform. Any elements (such as host,
 286  * router or sub-AS) added after this call and before the corresponding call
 287  * to sg_platf_new_AS_close() will be added to this AS.
 288  *
 289  * Once this function was called, the configuration concerning the used
 290  * models cannot be changed anymore.
 291  *
 292  * @param AS_id name of this autonomous system. Must be unique in the platform
 293  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 294  */
 295 void routing_AS_begin(const char *AS_id, const char *wanted_routing_type)
 296 {
 297   routing_component_t new_routing;
 298   model_type_t model = NULL;
 299   int cpt;
 300
 301   surf_parse_models_setup();    /* ensure that the models are created after the last <config> tag and before the first <AS>-like */
 302
 303   /* search the routing model */
 304   for (cpt = 0; routing_models[cpt].name; cpt++)
 305     if (!strcmp(wanted_routing_type, routing_models[cpt].name))
 306       model = &routing_models[cpt];
 307   /* if its not exist, error */
 308   if (model == NULL) {
 309     fprintf(stderr, "Routing model %s not found. Existing models:\n",
 310             wanted_routing_type);
 311     for (cpt = 0; routing_models[cpt].name; cpt++)
 312       fprintf(stderr, "   %s: %s\n", routing_models[cpt].name,
 313               routing_models[cpt].desc);
 314     xbt_die(NULL);
 315   }
 316
 317   /* make a new routing component */
 318   new_routing = (routing_component_t) (*(model->create)) ();
 319   new_routing->routing = model;
 320   new_routing->hierarchy = SURF_ROUTING_NULL;
 321   new_routing->name = xbt_strdup(AS_id);
 322   new_routing->routing_sons = xbt_dict_new();
 323
 324   if (current_routing == NULL && global_routing->root == NULL) {
 325
 326     /* it is the first one */
 327     new_routing->routing_father = NULL;
 328     global_routing->root = new_routing;
 329
 330   } else if (current_routing != NULL && global_routing->root != NULL) {
 331
 332     xbt_assert(!xbt_dict_get_or_null
 333                (current_routing->routing_sons, AS_id),
 334                "The AS \"%s\" already exists", AS_id);
 335     /* it is a part of the tree */
 336     new_routing->routing_father = current_routing;
 337     /* set the father behavior */
 338     if (current_routing->hierarchy == SURF_ROUTING_NULL)
 339       current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
 340     /* add to the sons dictionary */
 341     xbt_dict_set(current_routing->routing_sons, AS_id,
 342                  (void *) new_routing, NULL);
 343     /* add to the father element list */
 344     (*(current_routing->parse_AS)) (current_routing, AS_id);
 345     /* unload the prev parse rules */
 346     if (current_routing->routing->unload)
 347       (*(current_routing->routing->unload)) ();
 348
 349   } else {
 350     THROWF(arg_error, 0, "All defined components must be belong to a AS");
 351   }
 352   /* set the new parse rules */
 353   if (new_routing->routing->load)
 354     (*(new_routing->routing->load)) ();
 355   /* set the new current component of the tree */
 356   current_routing = new_routing;
 357 }
 358
 359 /**
 360  * \brief Specify that the current description of AS is finished
 361  *
 362  * Once you've declared all the content of your AS, you have to close
 363  * it with this call. Your AS is not usable until you call this function.
 364  *
 365  * @fixme: this call is not as robust as wanted: bad things WILL happen
 366  * if you call it twice for the same AS, or if you forget calling it, or
 367  * even if you add stuff to a closed AS
 368  *
 369  */
 370 void routing_AS_end()
 371 {
 372
 373   if (current_routing == NULL) {
 374     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 375   } else {
 376     network_element_info_t info = NULL;
 377     xbt_assert(!xbt_lib_get_or_null
 378                (as_router_lib, current_routing->name, ROUTING_ASR_LEVEL),
 379                "The AS \"%s\" already exists", current_routing->name);
 380     info = xbt_new0(s_network_element_info_t, 1);
 381     info->rc_component = current_routing->routing_father;
 382     info->rc_type = SURF_NETWORK_ELEMENT_AS;
 383     xbt_lib_set(as_router_lib, current_routing->name, ROUTING_ASR_LEVEL,
 384                 (void *) info);
 385
 386     if (current_routing->routing->unload)
 387       (*(current_routing->routing->unload)) ();
 388     if (current_routing->routing->end)
 389       (*(current_routing->routing->end)) ();
 390     current_routing = current_routing->routing_father;
 391     if (current_routing != NULL && current_routing->routing->load != NULL)
 392       (*(current_routing->routing->load)) ();
 393   }
 394 }
 395
 396 /* Aux Business methods */
 397
 398 /**
 399  * \brief Get the AS name of the element
 400  *
 401  * \param name the host name
 402  *
 403  */
 404 static char *elements_As_name(const char *name)
 405 {
 406   routing_component_t as_comp;
 407
 408   /* (1) find the as where the host is located */
 409   as_comp = ((network_element_info_t)
 410              xbt_lib_get_or_null(host_lib, name,
 411                                  ROUTING_HOST_LEVEL))->rc_component;
 412   return as_comp->name;
 413 }
 414
 415
 416 /**
 417  * \brief Get the AS father and the first elements of the chain
 418  *
 419  * \param src the source host name
 420  * \param dst the destination host name
 421  *
 422  * Get the common father of the to processing units, and the first different
 423  * father in the chain
 424  */
 425 static void elements_father(const char *src, const char *dst,
 426                             routing_component_t * res_father,
 427                             routing_component_t * res_src,
 428                             routing_component_t * res_dst)
 429 {
 430   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 431 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 432   routing_component_t src_as, dst_as;
 433   routing_component_t path_src[ELEMENTS_FATHER_MAXDEPTH];
 434   routing_component_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
 435   int index_src = 0;
 436   int index_dst = 0;
 437   routing_component_t current;
 438   routing_component_t current_src;
 439   routing_component_t current_dst;
 440   routing_component_t father;
 441
 442   /* (1) find the as where the src and dst are located */
 443   network_element_info_t src_data = xbt_lib_get_or_null(host_lib, src,
 444                                                         ROUTING_HOST_LEVEL);
 445   network_element_info_t dst_data = xbt_lib_get_or_null(host_lib, dst,
 446                                                         ROUTING_HOST_LEVEL);
 447   if (!src_data)
 448     src_data = xbt_lib_get_or_null(as_router_lib, src, ROUTING_ASR_LEVEL);
 449   if (!dst_data)
 450     dst_data = xbt_lib_get_or_null(as_router_lib, dst, ROUTING_ASR_LEVEL);
 451   src_as = src_data->rc_component;
 452   dst_as = dst_data->rc_component;
 453
 454   xbt_assert(src_as && dst_as,
 455              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src, dst);
 456
 457   /* (2) find the path to the root routing component */
 458   for (current = src_as; current != NULL; current = current->routing_father) {
 459     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 460       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 461     path_src[index_src++] = current;
 462   }
 463   for (current = dst_as; current != NULL; current = current->routing_father) {
 464     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 465       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 466     path_dst[index_dst++] = current;
 467   }
 468
 469   /* (3) find the common father */
 470   do {
 471     current_src = path_src[--index_src];
 472     current_dst = path_dst[--index_dst];
 473   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 474
 475   /* (4) they are not in the same routing component, make the path */
 476   if (current_src == current_dst)
 477     father = current_src;
 478   else
 479     father = path_src[index_src + 1];
 480
 481   /* (5) result generation */
 482   *res_father = father;         /* first the common father of src and dst */
 483   *res_src = current_src;       /* second the first different father of src */
 484   *res_dst = current_dst;       /* three  the first different father of dst */
 485
 486 #undef ELEMENTS_FATHER_MAXDEPTH
 487 }
 488
 489 /* Global Business methods */
 490
 491 /**
 492  * \brief Recursive function for get_route_latency
 493  *
 494  * \param src the source host name
 495  * \param dst the destination host name
 496  * \param *e_route the route where the links are stored
 497  * \param *latency the latency, if needed
 498  *
 499  * This function is called by "get_route" and "get_latency". It allows to walk
 500  * recursively through the routing components tree.
 501  */
 502 static void _get_route_latency(const char *src, const char *dst,
 503                                xbt_dynar_t * route, double *latency)
 504 {
 505   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src, dst);
 506   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 507
 508   routing_component_t common_father;
 509   routing_component_t src_father;
 510   routing_component_t dst_father;
 511   elements_father(src, dst, &common_father, &src_father, &dst_father);
 512
 513   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 514
 515     route_extended_t e_route = NULL;
 516     if (route) {
 517       e_route = common_father->get_route(common_father, src, dst);
 518       xbt_assert(e_route, "no route between \"%s\" and \"%s\"", src, dst);
 519       *route = e_route->generic_route.link_list;
 520     }
 521     if (latency) {
 522       *latency = common_father->get_latency(common_father, src, dst, e_route);
 523       xbt_assert(*latency >= 0.0,
 524                  "latency error on route between \"%s\" and \"%s\"", src, dst);
 525     }
 526     if (e_route) {
 527       xbt_free(e_route->src_gateway);
 528       xbt_free(e_route->dst_gateway);
 529       xbt_free(e_route);
 530     }
 531
 532   } else {                      /* SURF_ROUTING_RECURSIVE */
 533
 534     route_extended_t e_route_bypass = NULL;
 535     if (common_father->get_bypass_route)
 536       e_route_bypass = common_father->get_bypass_route(common_father, src, dst);
 537
 538     xbt_assert(!latency || !e_route_bypass,
 539                "Bypass cannot work yet with get_latency");
 540
 541     route_extended_t e_route_cnt = e_route_bypass
 542         ? e_route_bypass : common_father->get_route(common_father,
 543                                                     src_father->name,
 544                                                     dst_father->name);
 545
 546     xbt_assert(e_route_cnt, "no route between \"%s\" and \"%s\"",
 547                src_father->name, dst_father->name);
 548
 549     xbt_assert((e_route_cnt->src_gateway == NULL) ==
 550                (e_route_cnt->dst_gateway == NULL),
 551                "bad gateway for route between \"%s\" and \"%s\"", src, dst);
 552
 553     if (route) {
 554       *route = xbt_dynar_new(global_routing->size_of_link, NULL);
 555     }
 556     if (latency) {
 557       *latency = common_father->get_latency(common_father,
 558                                             src_father->name, dst_father->name,
 559                                             e_route_cnt);
 560       xbt_assert(*latency >= 0.0,
 561                  "latency error on route between \"%s\" and \"%s\"",
 562                  src_father->name, dst_father->name);
 563     }
 564
 565     void *link;
 566     unsigned int cpt;
 567
 568     if (strcmp(src, e_route_cnt->src_gateway)) {
 569       double latency_src;
 570       xbt_dynar_t route_src;
 571
 572       _get_route_latency(src, e_route_cnt->src_gateway,
 573                          (route ? &route_src : NULL),
 574                          (latency ? &latency_src : NULL));
 575       if (route) {
 576         xbt_assert(route_src, "no route between \"%s\" and \"%s\"",
 577                    src, e_route_cnt->src_gateway);
 578         xbt_dynar_foreach(route_src, cpt, link) {
 579           xbt_dynar_push(*route, &link);
 580         }
 581         xbt_dynar_free(&route_src);
 582       }
 583       if (latency) {
 584         xbt_assert(latency_src >= 0.0,
 585                    "latency error on route between \"%s\" and \"%s\"",
 586                    src, e_route_cnt->src_gateway);
 587         *latency += latency_src;
 588       }
 589     }
 590
 591     if (route) {
 592       xbt_dynar_foreach(e_route_cnt->generic_route.link_list, cpt, link) {
 593         xbt_dynar_push(*route, &link);
 594       }
 595     }
 596
 597     if (strcmp(e_route_cnt->dst_gateway, dst)) {
 598       double latency_dst;
 599       xbt_dynar_t route_dst;
 600
 601       _get_route_latency(e_route_cnt->dst_gateway, dst,
 602                          (route ? &route_dst : NULL),
 603                          (latency ? &latency_dst : NULL));
 604       if (route) {
 605         xbt_assert(route_dst, "no route between \"%s\" and \"%s\"",
 606                    e_route_cnt->dst_gateway, dst);
 607         xbt_dynar_foreach(route_dst, cpt, link) {
 608           xbt_dynar_push(*route, &link);
 609         }
 610         xbt_dynar_free(&route_dst);
 611       }
 612       if (latency) {
 613         xbt_assert(latency_dst >= 0.0,
 614                    "latency error on route between \"%s\" and \"%s\"",
 615                    e_route_cnt->dst_gateway, dst);
 616         *latency += latency_dst;
 617       }
 618     }
 619
 620     generic_free_extended_route(e_route_cnt);
 621   }
 622 }
 623
 624 /**
 625  * \brief Generic function for get_route, get_route_no_cleanup, and get_latency
 626  */
 627 static void get_route_latency(const char *src, const char *dst,
 628                               xbt_dynar_t * route, double *latency, int cleanup)
 629 {
 630   _get_route_latency(src, dst, route, latency);
 631   xbt_assert(!route || *route, "no route between \"%s\" and \"%s\"", src, dst);
 632   xbt_assert(!latency || *latency >= 0.0,
 633              "latency error on route between \"%s\" and \"%s\"", src, dst);
 634   if (route) {
 635     xbt_dynar_free(&global_routing->last_route);
 636     global_routing->last_route = cleanup ? *route : NULL;
 637   }
 638 }
 639
 640 /**
 641  * \brief Generic method: find a route between hosts
 642  *
 643  * \param src the source host name
 644  * \param dst the destination host name
 645  *
 646  * walk through the routing components tree and find a route between hosts
 647  * by calling the differents "get_route" functions in each routing component.
 648  * No need to free the returned dynar. It will be freed at the next call.
 649  */
 650 static xbt_dynar_t get_route(const char *src, const char *dst)
 651 {
 652   xbt_dynar_t route = NULL;
 653   get_route_latency(src, dst, &route, NULL, 1);
 654   return route;
 655 }
 656
 657 /**
 658  * \brief Generic method: find a route between hosts
 659  *
 660  * \param src the source host name
 661  * \param dst the destination host name
 662  *
 663  * same as get_route, but return NULL if any exception is raised.
 664  */
 665 static xbt_dynar_t get_route_or_null(const char *src, const char *dst)
 666 {
 667   xbt_dynar_t route = NULL;
 668   xbt_ex_t exception;
 669   TRY {
 670     get_route_latency(src, dst, &route, NULL, 1);
 671   } CATCH(exception) {
 672     xbt_ex_free(exception);
 673     return NULL;
 674   }
 675   return route;
 676 }
 677
 678 /**
 679  * \brief Generic method: find a route between hosts
 680  *
 681  * \param src the source host name
 682  * \param dst the destination host name
 683  *
 684  * walk through the routing components tree and find a route between hosts
 685  * by calling the differents "get_route" functions in each routing component.
 686  * Leaves the caller the responsability to clean the returned dynar.
 687  */
 688 static xbt_dynar_t get_route_no_cleanup(const char *src, const char *dst)
 689 {
 690   xbt_dynar_t route = NULL;
 691   get_route_latency(src, dst, &route, NULL, 0);
 692   return route;
 693 }
 694
 695 /*Get Latency*/
 696 static double get_latency(const char *src, const char *dst)
 697 {
 698   double latency = -1.0;
 699   get_route_latency(src, dst, NULL, &latency, 0);
 700   return latency;
 701 }
 702
 703 static int surf_parse_models_setup_already_called = 0;
 704 /* Call the last initialization functions, that must be called after the
 705  * <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 706  */
 707 void surf_parse_models_setup()
 708 {
 709   if (surf_parse_models_setup_already_called)
 710     return;
 711   surf_parse_models_setup_already_called = 1;
 712   surf_config_models_setup();
 713 }
 714
 715
 716 /**
 717  * \brief Recursive function for finalize
 718  *
 719  * \param rc the source host name
 720  *
 721  * This fuction is call by "finalize". It allow to finalize the
 722  * AS or routing components. It delete all the structures.
 723  */
 724 static void _finalize(routing_component_t rc)
 725 {
 726   if (rc) {
 727     xbt_dict_cursor_t cursor = NULL;
 728     char *key;
 729     routing_component_t elem;
 730     xbt_dict_foreach(rc->routing_sons, cursor, key, elem) {
 731       _finalize(elem);
 732     }
 733     xbt_dict_t tmp_sons = rc->routing_sons;
 734     char *tmp_name = rc->name;
 735     xbt_dict_free(&tmp_sons);
 736     xbt_free(tmp_name);
 737     xbt_assert(rc->finalize, "no defined method \"finalize\" in \"%s\"",
 738                current_routing->name);
 739     (*(rc->finalize)) (rc);
 740   }
 741 }
 742
 743 /**
 744  * \brief Generic method: delete all the routing structures
 745  *
 746  * walk through the routing components tree and delete the structures
 747  * by calling the differents "finalize" functions in each routing component
 748  */
 749 static void finalize(void)
 750 {
 751   /* delete recursively all the tree */
 752   _finalize(global_routing->root);
 753   /* delete last_route */
 754   xbt_dynar_free(&(global_routing->last_route));
 755   /* delete global routing structure */
 756   xbt_free(global_routing);
 757   /* make sure that we will reinit the models while loading the platf once reinited -- HACK but there is no proper surf_routing_init() */
 758   surf_parse_models_setup_already_called = 0;
 759 }
 760
 761 static xbt_dynar_t recursive_get_onelink_routes(routing_component_t rc)
 762 {
 763   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
 764
 765   //adding my one link routes
 766   unsigned int cpt;
 767   void *link;
 768   xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
 769   if (onelink_mine) {
 770     xbt_dynar_foreach(onelink_mine, cpt, link) {
 771       xbt_dynar_push(ret, &link);
 772     }
 773   }
 774   //recursing
 775   char *key;
 776   xbt_dict_cursor_t cursor = NULL;
 777   routing_component_t rc_child;
 778   xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
 779     xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
 780     if (onelink_child) {
 781       xbt_dynar_foreach(onelink_child, cpt, link) {
 782         xbt_dynar_push(ret, &link);
 783       }
 784     }
 785   }
 786   return ret;
 787 }
 788
 789 static xbt_dynar_t get_onelink_routes(void)
 790 {
 791   return recursive_get_onelink_routes(global_routing->root);
 792 }
 793
 794 e_surf_network_element_type_t get_network_element_type(const char *name)
 795 {
 796   network_element_info_t rc = NULL;
 797
 798   rc = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
 799   if (rc)
 800     return rc->rc_type;
 801
 802   rc = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
 803   if (rc)
 804     return rc->rc_type;
 805
 806   return SURF_NETWORK_ELEMENT_NULL;
 807 }
 808
 809 /**
 810  * \brief Generic method: create the global routing schema
 811  *
 812  * Make a global routing structure and set all the parsing functions.
 813  */
 814 void routing_model_create(size_t size_of_links, void *loopback)
 815 {
 816   /* config the uniq global routing */
 817   global_routing = xbt_new0(s_routing_global_t, 1);
 818   global_routing->root = NULL;
 819   global_routing->get_route = get_route;
 820   global_routing->get_route_or_null = get_route_or_null;
 821   global_routing->get_latency = get_latency;
 822   global_routing->get_route_no_cleanup = get_route_no_cleanup;
 823   global_routing->get_onelink_routes = get_onelink_routes;
 824   global_routing->get_route_latency = get_route_latency;
 825   global_routing->get_network_element_type = get_network_element_type;
 826   global_routing->finalize = finalize;
 827   global_routing->loopback = loopback;
 828   global_routing->size_of_link = size_of_links;
 829   global_routing->last_route = NULL;
 830   /* no current routing at moment */
 831   current_routing = NULL;
 832 }
 833
 834
 835 /* ************************************************** */
 836 /* ********** PATERN FOR NEW ROUTING **************** */
 837
 838 /* The minimal configuration of a new routing model need the next functions,
 839  * also you need to set at the start of the file, the new model in the model
 840  * list. Remember keep the null ending of the list.
 841  */
 842 /*** Routing model structure ***/
 843 // typedef struct {
 844 //   s_routing_component_t generic_routing;
 845 //   /* things that your routing model need */
 846 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 847
 848 /*** Parse routing model functions ***/
 849 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 850 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 851 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 852 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 853 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 854
 855 /*** Business methods ***/
 856 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 857 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 858 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 859
 860 /*** Creation routing model functions ***/
 861 // static void* model_NEW_create(void) {
 862 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 863 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 864 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 865 //   new_component->generic_routing.set_route = model_NEW_set_route;
 866 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 867 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 868 //   new_component->generic_routing.get_route = NEW_get_route;
 869 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 870 //   new_component->generic_routing.finalize = NEW_finalize;
 871 //   /* initialization of internal structures */
 872 //   return new_component;
 873 // } /* mandatory */
 874 // static void  model_NEW_load(void) {}   /* mandatory */
 875 // static void  model_NEW_unload(void) {} /* mandatory */
 876 // static void  model_NEW_end(void) {}    /* mandatory */
 877
 878 /* ************************************************************************** */
 879 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 880
 881
 882 static void routing_parse_cluster(void)
 883 {
 884   char *host_id, *groups, *link_id = NULL;
 885
 886   s_sg_platf_host_cbarg_t host;
 887   s_sg_platf_link_cbarg_t link;
 888
 889   if (strcmp(struct_cluster->availability_trace, "")
 890       || strcmp(struct_cluster->state_trace, "")) {
 891     if (xbt_dict_size(patterns) == 0)
 892       patterns = xbt_dict_new();
 893     xbt_dict_set(patterns, "id", xbt_strdup(struct_cluster->id), free);
 894     xbt_dict_set(patterns, "prefix", xbt_strdup(struct_cluster->prefix), free);
 895     xbt_dict_set(patterns, "suffix", xbt_strdup(struct_cluster->suffix), free);
 896   }
 897
 898   unsigned int iter;
 899   int start, end, i;
 900   xbt_dynar_t radical_elements;
 901   xbt_dynar_t radical_ends;
 902
 903   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", struct_cluster->id);
 904   sg_platf_new_AS_begin(struct_cluster->id, "Cluster");
 905
 906   //Make all hosts
 907   radical_elements = xbt_str_split(struct_cluster->radical, ",");
 908   xbt_dynar_foreach(radical_elements, iter, groups) {
 909     memset(&host, 0, sizeof(host));
 910
 911     radical_ends = xbt_str_split(groups, "-");
 912     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 913
 914     switch (xbt_dynar_length(radical_ends)) {
 915     case 1:
 916       end = start;
 917       break;
 918     case 2:
 919       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 920       break;
 921     default:
 922       surf_parse_error("Malformed radical");
 923       break;
 924     }
 925     for (i = start; i <= end; i++) {
 926       host_id =
 927           bprintf("%s%d%s", struct_cluster->prefix, i, struct_cluster->suffix);
 928       link_id = bprintf("%s_link_%d", struct_cluster->id, i);
 929
 930       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id,
 931                 struct_cluster->power);
 932       host.id = host_id;
 933       if (strcmp(struct_cluster->availability_trace, "")) {
 934         xbt_dict_set(patterns, "radical", bprintf("%d", i), xbt_free);
 935         char *tmp_availability_file =
 936             xbt_strdup(struct_cluster->availability_trace);
 937         xbt_str_varsubst(tmp_availability_file, patterns);
 938         XBT_DEBUG("\tavailability_file=\"%s\"", tmp_availability_file);
 939         host.power_trace = tmgr_trace_new(tmp_availability_file);
 940         xbt_free(tmp_availability_file);
 941       } else {
 942         XBT_DEBUG("\tavailability_file=\"\"");
 943       }
 944       if (strcmp(struct_cluster->state_trace, "")) {
 945         char *tmp_state_file = xbt_strdup(struct_cluster->state_trace);
 946         xbt_str_varsubst(tmp_state_file, patterns);
 947         XBT_DEBUG("\tstate_file=\"%s\"", tmp_state_file);
 948         host.state_trace = tmgr_trace_new(tmp_state_file);
 949         xbt_free(tmp_state_file);
 950       } else {
 951         XBT_DEBUG("\tstate_file=\"\"");
 952       }
 953
 954       host.power_peak = struct_cluster->power;
 955       host.power_scale = 1.0;
 956       host.core_amount = struct_cluster->core_amount;
 957       host.initial_state = SURF_RESOURCE_ON;
 958       host.coord = "";
 959       sg_platf_new_host(&host);
 960       XBT_DEBUG("</host>");
 961
 962       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 963                 struct_cluster->bw, struct_cluster->lat);
 964
 965       memset(&link, 0, sizeof(link));
 966       link.id = link_id;
 967       link.bandwidth = struct_cluster->bw;
 968       link.latency = struct_cluster->lat;
 969       link.state = SURF_RESOURCE_ON;
 970
 971       switch (struct_cluster->sharing_policy) {
 972       case A_surfxml_cluster_sharing_policy_SHARED:
 973         link.policy = SURF_LINK_SHARED;
 974         break;
 975       case A_surfxml_cluster_sharing_policy_FULLDUPLEX:
 976         link.policy = SURF_LINK_FULLDUPLEX;
 977         break;
 978       case A_surfxml_cluster_sharing_policy_FATPIPE:
 979         link.policy = SURF_LINK_FATPIPE;
 980         break;
 981       default:
 982         surf_parse_error(bprintf
 983                          ("Invalid cluster sharing policy for cluster %s",
 984                           struct_cluster->id));
 985         break;
 986       }
 987       sg_platf_new_link(&link);
 988
 989       surf_parsing_link_up_down_t info =
 990           xbt_new0(s_surf_parsing_link_up_down_t, 1);
 991       if (link.policy == SURF_LINK_FULLDUPLEX) {
 992         char *tmp_link = bprintf("%s_UP", link_id);
 993         info->link_up =
 994             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 995         free(tmp_link);
 996         tmp_link = bprintf("%s_DOWN", link_id);
 997         info->link_down =
 998             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 999         free(tmp_link);
1000       } else {
1001         info->link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
1002         info->link_down = info->link_up;
1003       }
1004       surf_routing_cluster_add_link(host_id, info);
1005
1006       xbt_free(link_id);
1007       xbt_free(host_id);
1008     }
1009
1010     xbt_dynar_free(&radical_ends);
1011   }
1012   xbt_dynar_free(&radical_elements);
1013
1014   // 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
1015   XBT_DEBUG(" ");
1016   XBT_DEBUG("<router id=\"%s\"/>", struct_cluster->router_id);
1017   s_sg_platf_router_cbarg_t router;
1018   char *newid = NULL;
1019   memset(&router, 0, sizeof(router));
1020   router.id = struct_cluster->router_id;
1021   router.coord = "";
1022   if (!router.id || !strcmp(router.id, ""))
1023     router.id = newid =
1024         bprintf("%s%s_router%s", struct_cluster->prefix, struct_cluster->id,
1025                 struct_cluster->suffix);
1026   sg_platf_new_router(&router);
1027   free(newid);
1028
1029   //Make the backbone
1030   if ((struct_cluster->bb_bw != 0) && (struct_cluster->bb_lat != 0)) {
1031     char *link_backbone = bprintf("%s_backbone", struct_cluster->id);
1032     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
1033               struct_cluster->bb_bw, struct_cluster->bb_lat);
1034
1035     memset(&link, 0, sizeof(link));
1036     link.id = link_backbone;
1037     link.bandwidth = struct_cluster->bb_bw;
1038     link.latency = struct_cluster->bb_lat;
1039     link.state = SURF_RESOURCE_ON;
1040
1041     switch (struct_cluster->bb_sharing_policy) {
1042     case A_surfxml_cluster_bb_sharing_policy_FATPIPE:
1043       link.policy = SURF_LINK_FATPIPE;
1044       break;
1045     case A_surfxml_cluster_bb_sharing_policy_SHARED:
1046       link.policy = SURF_LINK_SHARED;
1047       break;
1048     default:
1049       surf_parse_error(bprintf
1050                        ("Invalid bb sharing policy in cluster %s",
1051                         struct_cluster->id));
1052       break;
1053     }
1054
1055     sg_platf_new_link(&link);
1056
1057     surf_parsing_link_up_down_t info =
1058         xbt_new0(s_surf_parsing_link_up_down_t, 1);
1059     info->link_up =
1060         xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL);
1061     info->link_down = info->link_up;
1062     surf_routing_cluster_add_link(struct_cluster->id, info);
1063
1064     free(link_backbone);
1065   }
1066
1067   XBT_DEBUG(" ");
1068
1069   char *new_suffix = xbt_strdup("");
1070
1071   radical_elements = xbt_str_split(struct_cluster->suffix, ".");
1072   xbt_dynar_foreach(radical_elements, iter, groups) {
1073     if (strcmp(groups, "")) {
1074       char *old_suffix = new_suffix;
1075       new_suffix = bprintf("%s\\.%s", old_suffix, groups);
1076       free(old_suffix);
1077     }
1078   }
1079
1080   xbt_dynar_free(&radical_elements);
1081   xbt_free(new_suffix);
1082
1083   if (strcmp(struct_cluster->availability_trace, "")
1084       || strcmp(struct_cluster->state_trace, ""))
1085     xbt_dict_free(&patterns);
1086
1087   XBT_DEBUG("</AS>");
1088   sg_platf_new_AS_end();
1089   XBT_DEBUG(" ");
1090 }
1091
1092 /*
1093  * This function take a string and replace parameters from patterns dict.
1094  * It returns the new value.
1095  */
1096 static char *replace_random_parameter(char *string)
1097 {
1098   char *test_string = NULL;
1099
1100   if (xbt_dict_size(random_value) == 0)
1101     return string;
1102
1103   string = xbt_str_varsubst(string, patterns);  // for patterns of cluster
1104   test_string = bprintf("${%s}", string);
1105   test_string = xbt_str_varsubst(test_string, random_value);    //Add ${xxxxx} for random Generator
1106
1107   if (strcmp(test_string, "")) {        //if not empty, keep this value.
1108     xbt_free(string);
1109     string = test_string;
1110   }                             //In other case take old value (without ${})
1111   else
1112     free(test_string);
1113   return string;
1114 }
1115
1116 static void routing_parse_postparse(void)
1117 {
1118   xbt_dict_free(&random_value);
1119   xbt_dict_free(&patterns);
1120 }
1121
1122 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1123 {
1124   static int AX_ptr = 0;
1125   char *host_id = NULL;
1126   char *router_id, *link_router, *link_backbone, *link_id_up, *link_id_down;
1127
1128   static unsigned int surfxml_buffer_stack_stack_ptr = 1;
1129   static unsigned int surfxml_buffer_stack_stack[1024];
1130
1131   surfxml_buffer_stack_stack[0] = 0;
1132
1133   surfxml_bufferstack_push(1);
1134
1135   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Full\">", peer->id);
1136   sg_platf_new_AS_begin(peer->id, "Full");
1137
1138   XBT_DEBUG(" ");
1139   host_id = HOST_PEER(peer->id);
1140   router_id = ROUTER_PEER(peer->id);
1141   link_id_up = LINK_UP_PEER(peer->id);
1142   link_id_down = LINK_DOWN_PEER(peer->id);
1143
1144   link_router = bprintf("%s_link_router", peer->id);
1145   link_backbone = bprintf("%s_backbone", peer->id);
1146
1147   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1148   s_sg_platf_host_cbarg_t host;
1149   memset(&host, 0, sizeof(host));
1150   host.initial_state = SURF_RESOURCE_ON;
1151   host.id = host_id;
1152   host.power_peak = peer->power;
1153   host.power_scale = 1.0;
1154   host.power_trace = peer->availability_trace;
1155   host.state_trace = peer->state_trace;
1156   host.core_amount = 1;
1157   sg_platf_new_host(&host);
1158
1159
1160   XBT_DEBUG("<router id=\"%s\"\tcoordinates=\"%s\"/>", router_id, peer->coord);
1161   s_sg_platf_router_cbarg_t router;
1162   memset(&router, 0, sizeof(router));
1163   router.id = router_id;
1164   router.coord = peer->coord;
1165   sg_platf_new_router(&router);
1166
1167   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_up,
1168             peer->bw_in, peer->lat);
1169   s_sg_platf_link_cbarg_t link;
1170   memset(&link, 0, sizeof(link));
1171   link.state = SURF_RESOURCE_ON;
1172   link.policy = SURF_LINK_SHARED;
1173   link.id = link_id_up;
1174   link.bandwidth = peer->bw_in;
1175   link.latency = peer->lat;
1176   sg_platf_new_link(&link);
1177
1178   // FIXME: dealing with full duplex is not the role of this piece of code, I'd say [Mt]
1179   // Instead, it should be created fullduplex, and the models will do what's needed in this case
1180   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_down,
1181             peer->bw_out, peer->lat);
1182   link.id = link_id_down;
1183   sg_platf_new_link(&link);
1184
1185   XBT_DEBUG(" ");
1186
1187   // begin here
1188   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", host_id, router_id);
1189   XBT_DEBUG("symmetrical=\"NO\">");
1190   SURFXML_BUFFER_SET(route_src, host_id);
1191   SURFXML_BUFFER_SET(route_dst, router_id);
1192   A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1193   SURFXML_START_TAG(route);
1194
1195   XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_up);
1196   SURFXML_BUFFER_SET(link_ctn_id, link_id_up);
1197   A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1198   SURFXML_START_TAG(link_ctn);
1199   SURFXML_END_TAG(link_ctn);
1200
1201   XBT_DEBUG("</route>");
1202   SURFXML_END_TAG(route);
1203
1204   //Opposite Route
1205   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", router_id, host_id);
1206   XBT_DEBUG("symmetrical=\"NO\">");
1207   SURFXML_BUFFER_SET(route_src, router_id);
1208   SURFXML_BUFFER_SET(route_dst, host_id);
1209   A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1210   SURFXML_START_TAG(route);
1211
1212   XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_down);
1213   SURFXML_BUFFER_SET(link_ctn_id, link_id_down);
1214   A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1215   SURFXML_START_TAG(link_ctn);
1216   SURFXML_END_TAG(link_ctn);
1217
1218   XBT_DEBUG("</route>");
1219   SURFXML_END_TAG(route);
1220
1221   XBT_DEBUG("</AS>");
1222   sg_platf_new_AS_end();
1223   XBT_DEBUG(" ");
1224
1225   //xbt_dynar_free(&tab_elements_num);
1226   free(host_id);
1227   free(router_id);
1228   free(link_router);
1229   free(link_backbone);
1230   free(link_id_up);
1231   free(link_id_down);
1232   surfxml_bufferstack_pop(1);
1233 }
1234
1235 static void routing_parse_Srandom(void)
1236 {
1237   double mean, std, min, max, seed;
1238   char *random_id = A_surfxml_random_id;
1239   char *random_radical = A_surfxml_random_radical;
1240   char *rd_name = NULL;
1241   char *rd_value;
1242   mean = surf_parse_get_double(A_surfxml_random_mean);
1243   std = surf_parse_get_double(A_surfxml_random_std_deviation);
1244   min = surf_parse_get_double(A_surfxml_random_min);
1245   max = surf_parse_get_double(A_surfxml_random_max);
1246   seed = surf_parse_get_double(A_surfxml_random_seed);
1247
1248   double res = 0;
1249   int i = 0;
1250   random_data_t random = xbt_new0(s_random_data_t, 1);
1251   char *tmpbuf;
1252
1253   xbt_dynar_t radical_elements;
1254   unsigned int iter;
1255   char *groups;
1256   int start, end;
1257   xbt_dynar_t radical_ends;
1258
1259   random->generator = A_surfxml_random_generator;
1260   random->seed = seed;
1261   random->min = min;
1262   random->max = max;
1263
1264   /* Check user stupidities */
1265   if (max < min)
1266     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1267   if (mean < min)
1268     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1269   if (mean > max)
1270     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1271
1272   /* normalize the mean and standard deviation before storing */
1273   random->mean = (mean - min) / (max - min);
1274   random->std = std / (max - min);
1275
1276   if (random->mean * (1 - random->mean) < random->std * random->std)
1277     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1278            random->mean, random->std);
1279
1280   XBT_DEBUG
1281       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1282        random_id, random->min, random->max, random->mean, random->std,
1283        random->generator, random->seed, random_radical);
1284
1285   if (xbt_dict_size(random_value) == 0)
1286     random_value = xbt_dict_new();
1287
1288   if (!strcmp(random_radical, "")) {
1289     res = random_generate(random);
1290     rd_value = bprintf("%f", res);
1291     xbt_dict_set(random_value, random_id, rd_value, free);
1292   } else {
1293     radical_elements = xbt_str_split(random_radical, ",");
1294     xbt_dynar_foreach(radical_elements, iter, groups) {
1295       radical_ends = xbt_str_split(groups, "-");
1296       switch (xbt_dynar_length(radical_ends)) {
1297       case 1:
1298         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1299                    "Custom Random '%s' already exists !", random_id);
1300         res = random_generate(random);
1301         tmpbuf =
1302             bprintf("%s%d", random_id,
1303                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1304         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), free);
1305         xbt_free(tmpbuf);
1306         break;
1307
1308       case 2:
1309         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1310         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1311         for (i = start; i <= end; i++) {
1312           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1313                      "Custom Random '%s' already exists !", bprintf("%s%d",
1314                                                                     random_id,
1315                                                                     i));
1316           res = random_generate(random);
1317           tmpbuf = bprintf("%s%d", random_id, i);
1318           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), free);
1319           xbt_free(tmpbuf);
1320         }
1321         break;
1322       default:
1323         XBT_INFO("Malformed radical");
1324         break;
1325       }
1326       res = random_generate(random);
1327       rd_name = bprintf("%s_router", random_id);
1328       rd_value = bprintf("%f", res);
1329       xbt_dict_set(random_value, rd_name, rd_value, free);
1330
1331       xbt_dynar_free(&radical_ends);
1332     }
1333     free(rd_name);
1334     xbt_dynar_free(&radical_elements);
1335   }
1336 }
1337
1338 void routing_register_callbacks()
1339 {
1340   sg_platf_host_add_cb(parse_S_host);
1341   sg_platf_router_add_cb(parse_S_router);
1342
1343   surfxml_add_callback(STag_surfxml_random_cb_list, &routing_parse_Srandom);
1344
1345   surfxml_add_callback(STag_surfxml_route_cb_list, &routing_parse_S_route);
1346   surfxml_add_callback(STag_surfxml_ASroute_cb_list, &routing_parse_S_ASroute);
1347   surfxml_add_callback(STag_surfxml_bypassRoute_cb_list,
1348                        &routing_parse_S_bypassRoute);
1349
1350   surfxml_add_callback(ETag_surfxml_link_ctn_cb_list, &routing_parse_link_ctn);
1351
1352   surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_parse_E_route);
1353   surfxml_add_callback(ETag_surfxml_ASroute_cb_list, &routing_parse_E_ASroute);
1354   surfxml_add_callback(ETag_surfxml_bypassRoute_cb_list,
1355                        &routing_parse_E_bypassRoute);
1356
1357   surfxml_add_callback(STag_surfxml_cluster_cb_list, &routing_parse_cluster);
1358
1359   sg_platf_peer_add_cb(routing_parse_peer);
1360   sg_platf_postparse_add_cb(routing_parse_postparse);
1361
1362 #ifdef HAVE_TRACING
1363   instr_routing_define_callbacks();
1364 #endif
1365 }