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