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 random_value = NULL;
  36
  37 /* Global vars */
  38 routing_global_t global_routing = NULL;
  39 AS_t current_routing = NULL;
  40 routing_model_description_t current_routing_model = NULL;
  41
  42 /* global parse functions */
  43 xbt_dynar_t link_list = NULL;   /* temporary store of current list link of a route */
  44 static const char *src = NULL;  /* temporary store the source name of a route */
  45 static const char *dst = NULL;  /* temporary store the destination name of a route */
  46 static char *gw_src = NULL;     /* temporary store the gateway source name of a route */
  47 static char *gw_dst = NULL;     /* temporary store the gateway destination name of a route */
  48
  49 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  50
  51 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  52 static void routing_parse_Srandom(void);        /* random bypass */
  53
  54 static char *replace_random_parameter(char *chaine);
  55 static void routing_parse_postparse(void);
  56
  57 /* this lines are only for replace use like index in the model table */
  58 typedef enum {
  59   SURF_MODEL_FULL = 0,
  60   SURF_MODEL_FLOYD,
  61   SURF_MODEL_DIJKSTRA,
  62   SURF_MODEL_DIJKSTRACACHE,
  63   SURF_MODEL_NONE,
  64   SURF_MODEL_RULEBASED,
  65   SURF_MODEL_VIVALDI,
  66   SURF_MODEL_CLUSTER
  67 } e_routing_types;
  68
  69 struct s_model_type routing_models[] = {
  70   {"Full",
  71    "Full routing data (fast, large memory requirements, fully expressive)",
  72    model_full_create, model_full_end},
  73   {"Floyd",
  74    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  75    model_floyd_create, model_floyd_end},
  76   {"Dijkstra",
  77    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
  78    model_dijkstra_create, model_dijkstra_both_end},
  79   {"DijkstraCache",
  80    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
  81    model_dijkstracache_create, model_dijkstra_both_end},
  82   {"none", "No routing (usable with Constant network only)",
  83    model_none_create,  NULL},
  84   {"RuleBased", "Rule-Based routing data (...)",
  85    model_rulebased_create, NULL},
  86   {"Vivaldi", "Vivaldi routing",
  87    model_vivaldi_create, NULL},
  88   {"Cluster", "Cluster routing",
  89    model_cluster_create, NULL},
  90   {NULL, NULL, NULL, NULL}
  91 };
  92
  93 /**
  94  * \brief Add a "host" to the network element list
  95  */
  96 static void parse_S_host(sg_platf_host_cbarg_t host)
  97 {
  98   network_element_info_t info = NULL;
  99   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 100     current_routing->hierarchy = SURF_ROUTING_BASE;
 101   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
 102              "Reading a host, processing unit \"%s\" already exists", host->id);
 103
 104   (*(current_routing->parse_PU)) (current_routing, host->id);
 105   info = xbt_new0(s_network_element_info_t, 1);
 106   info->rc_component = current_routing;
 107   info->rc_type = SURF_NETWORK_ELEMENT_HOST;
 108   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
 109   if (host->coord && strcmp(host->coord, "")) {
 110     if (!COORD_HOST_LEVEL)
 111       xbt_die
 112           ("To use coordinates, you must set configuration 'coordinates' to 'yes'");
 113     xbt_dynar_t ctn = xbt_str_split_str(host->coord, " ");
 114     xbt_dynar_shrink(ctn, 0);
 115     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
 116   }
 117 }
 118
 119 /**
 120  * \brief Add a "router" to the network element list
 121  */
 122 static void parse_S_router(sg_platf_router_cbarg_t router)
 123 {
 124   network_element_info_t info = NULL;
 125   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 126     current_routing->hierarchy = SURF_ROUTING_BASE;
 127   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 128              "Reading a router, processing unit \"%s\" already exists",
 129              router->id);
 130
 131   (*(current_routing->parse_PU)) (current_routing, router->id);
 132   info = xbt_new0(s_network_element_info_t, 1);
 133   info->rc_component = current_routing;
 134   info->rc_type = SURF_NETWORK_ELEMENT_ROUTER;
 135
 136   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 137   if (strcmp(router->coord, "")) {
 138     if (!COORD_ASR_LEVEL)
 139       xbt_die
 140           ("To use coordinates, you must set configuration 'coordinates' to 'yes'");
 141     xbt_dynar_t ctn = xbt_str_split_str(router->coord, " ");
 142     xbt_dynar_shrink(ctn, 0);
 143     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 144   }
 145 }
 146
 147
 148 /**
 149  * \brief Set the end points for a route
 150  */
 151 static void routing_parse_S_route(void)
 152 {
 153   if (src != NULL && dst != NULL && link_list != NULL)
 154     THROWF(arg_error, 0, "Route between %s to %s can not be defined",
 155            A_surfxml_route_src, A_surfxml_route_dst);
 156   src = A_surfxml_route_src;
 157   dst = A_surfxml_route_dst;
 158   xbt_assert(strlen(src) > 0 || strlen(dst) > 0,
 159              "Some limits are null in the route between \"%s\" and \"%s\"",
 160              src, dst);
 161   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 162 }
 163
 164 /**
 165  * \brief Set the end points and gateways for a ASroute
 166  */
 167 static void routing_parse_S_ASroute(void)
 168 {
 169   if (src != NULL && dst != NULL && link_list != NULL)
 170     THROWF(arg_error, 0, "Route between %s to %s can not be defined",
 171            A_surfxml_ASroute_src, A_surfxml_ASroute_dst);
 172   src = A_surfxml_ASroute_src;
 173   dst = A_surfxml_ASroute_dst;
 174   gw_src = A_surfxml_ASroute_gw_src;
 175   gw_dst = A_surfxml_ASroute_gw_dst;
 176   xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
 177              || strlen(gw_dst) > 0,
 178              "Some limits are null in the route between \"%s\" and \"%s\"",
 179              src, dst);
 180   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 181 }
 182
 183 /**
 184  * \brief Set the end points for a bypassRoute
 185  */
 186 static void routing_parse_S_bypassRoute(void)
 187 {
 188   if (src != NULL && dst != NULL && link_list != NULL)
 189     THROWF(arg_error, 0,
 190            "Bypass Route between %s to %s can not be defined",
 191            A_surfxml_bypassRoute_src, A_surfxml_bypassRoute_dst);
 192   src = A_surfxml_bypassRoute_src;
 193   dst = A_surfxml_bypassRoute_dst;
 194   gw_src = A_surfxml_bypassRoute_gw_src;
 195   gw_dst = A_surfxml_bypassRoute_gw_dst;
 196   xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
 197              || strlen(gw_dst) > 0,
 198              "Some limits are null in the route between \"%s\" and \"%s\"",
 199              src, dst);
 200   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 201 }
 202
 203 /**
 204  * \brief Set a new link on the actual list of link for a route or ASroute from XML
 205  */
 206
 207 static void routing_parse_link_ctn(void)
 208 {
 209   char *link_id;
 210   switch (A_surfxml_link_ctn_direction) {
 211   case AU_surfxml_link_ctn_direction:
 212   case A_surfxml_link_ctn_direction_NONE:
 213     link_id = xbt_strdup(A_surfxml_link_ctn_id);
 214     break;
 215   case A_surfxml_link_ctn_direction_UP:
 216     link_id = bprintf("%s_UP", A_surfxml_link_ctn_id);
 217     break;
 218   case A_surfxml_link_ctn_direction_DOWN:
 219     link_id = bprintf("%s_DOWN", A_surfxml_link_ctn_id);
 220     break;
 221   }
 222   xbt_dynar_push(link_list, &link_id);
 223 }
 224
 225 /**
 226  * \brief Store the route by calling the set_route function of the current routing component
 227  */
 228 static void routing_parse_E_route(void)
 229 {
 230   route_extended_t route = xbt_new0(s_route_extended_t, 1);
 231   route->generic_route.link_list = link_list;
 232   xbt_assert(current_routing->parse_route,
 233              "no defined method \"set_route\" in \"%s\"",
 234              current_routing->name);
 235   (*(current_routing->parse_route)) (current_routing, src, dst, route);
 236   link_list = NULL;
 237   src = NULL;
 238   dst = NULL;
 239 }
 240
 241 /**
 242  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 243  */
 244 static void routing_parse_E_ASroute(void)
 245 {
 246   route_extended_t e_route = xbt_new0(s_route_extended_t, 1);
 247   e_route->generic_route.link_list = link_list;
 248   e_route->src_gateway = xbt_strdup(gw_src);
 249   e_route->dst_gateway = xbt_strdup(gw_dst);
 250   xbt_assert(current_routing->parse_ASroute,
 251              "no defined method \"set_ASroute\" in \"%s\"",
 252              current_routing->name);
 253   (*(current_routing->parse_ASroute)) (current_routing, src, dst, e_route);
 254   link_list = NULL;
 255   src = NULL;
 256   dst = NULL;
 257   gw_src = NULL;
 258   gw_dst = NULL;
 259 }
 260
 261 /**
 262  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 263  */
 264 static void routing_parse_E_bypassRoute(void)
 265 {
 266   route_extended_t e_route = xbt_new0(s_route_extended_t, 1);
 267   e_route->generic_route.link_list = link_list;
 268   e_route->src_gateway = xbt_strdup(gw_src);
 269   e_route->dst_gateway = xbt_strdup(gw_dst);
 270   xbt_assert(current_routing->parse_bypassroute,
 271              "Bypassing mechanism not implemented by routing '%s'",
 272              current_routing->name);
 273   (*(current_routing->parse_bypassroute)) (current_routing, src, dst, e_route);
 274   link_list = NULL;
 275   src = NULL;
 276   dst = NULL;
 277   gw_src = NULL;
 278   gw_dst = NULL;
 279 }
 280
 281 /**
 282  * \brief Make a new routing component to the platform
 283  *
 284  * Add a new autonomous system to the platform. Any elements (such as host,
 285  * router or sub-AS) added after this call and before the corresponding call
 286  * to sg_platf_new_AS_close() will be added to this AS.
 287  *
 288  * Once this function was called, the configuration concerning the used
 289  * models cannot be changed anymore.
 290  *
 291  * @param AS_id name of this autonomous system. Must be unique in the platform
 292  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 293  */
 294 void routing_AS_begin(const char *AS_id, const char *wanted_routing_type)
 295 {
 296   AS_t new_routing;
 297   routing_model_description_t model = NULL;
 298   int cpt;
 299
 300   /* search the routing model */
 301   for (cpt = 0; routing_models[cpt].name; cpt++)
 302     if (!strcmp(wanted_routing_type, routing_models[cpt].name))
 303       model = &routing_models[cpt];
 304   /* if its not exist, error */
 305   if (model == NULL) {
 306     fprintf(stderr, "Routing model %s not found. Existing models:\n",
 307             wanted_routing_type);
 308     for (cpt = 0; routing_models[cpt].name; cpt++)
 309       fprintf(stderr, "   %s: %s\n", routing_models[cpt].name,
 310               routing_models[cpt].desc);
 311     xbt_die(NULL);
 312   }
 313
 314   /* make a new routing component */
 315   new_routing = (AS_t) (*(model->create)) ();
 316   new_routing->routing = model;
 317   new_routing->hierarchy = SURF_ROUTING_NULL;
 318   new_routing->name = xbt_strdup(AS_id);
 319   new_routing->routing_sons = xbt_dict_new();
 320
 321   if (current_routing == NULL && global_routing->root == NULL) {
 322
 323     /* it is the first one */
 324     new_routing->routing_father = NULL;
 325     global_routing->root = new_routing;
 326
 327   } else if (current_routing != NULL && global_routing->root != NULL) {
 328
 329     xbt_assert(!xbt_dict_get_or_null
 330                (current_routing->routing_sons, AS_id),
 331                "The AS \"%s\" already exists", AS_id);
 332     /* it is a part of the tree */
 333     new_routing->routing_father = current_routing;
 334     /* set the father behavior */
 335     if (current_routing->hierarchy == SURF_ROUTING_NULL)
 336       current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
 337     /* add to the sons dictionary */
 338     xbt_dict_set(current_routing->routing_sons, AS_id,
 339                  (void *) new_routing, NULL);
 340     /* add to the father element list */
 341     (*(current_routing->parse_AS)) (current_routing, AS_id);
 342   } else {
 343     THROWF(arg_error, 0, "All defined components must be belong to a AS");
 344   }
 345   /* set the new current component of the tree */
 346   current_routing = new_routing;
 347 }
 348
 349 /**
 350  * \brief Specify that the current description of AS is finished
 351  *
 352  * Once you've declared all the content of your AS, you have to close
 353  * it with this call. Your AS is not usable until you call this function.
 354  *
 355  * @fixme: this call is not as robust as wanted: bad things WILL happen
 356  * if you call it twice for the same AS, or if you forget calling it, or
 357  * even if you add stuff to a closed AS
 358  *
 359  */
 360 void routing_AS_end()
 361 {
 362
 363   if (current_routing == NULL) {
 364     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 365   } else {
 366     network_element_info_t info = NULL;
 367     xbt_assert(!xbt_lib_get_or_null
 368                (as_router_lib, current_routing->name, ROUTING_ASR_LEVEL),
 369                "The AS \"%s\" already exists", current_routing->name);
 370     info = xbt_new0(s_network_element_info_t, 1);
 371     info->rc_component = current_routing->routing_father;
 372     info->rc_type = SURF_NETWORK_ELEMENT_AS;
 373     xbt_lib_set(as_router_lib, current_routing->name, ROUTING_ASR_LEVEL,
 374                 (void *) info);
 375
 376     if (current_routing->routing->end)
 377       (*(current_routing->routing->end)) ();
 378     current_routing = current_routing->routing_father;
 379   }
 380 }
 381
 382 /* Aux Business methods */
 383
 384 /**
 385  * \brief Get the AS father and the first elements of the chain
 386  *
 387  * \param src the source host name
 388  * \param dst the destination host name
 389  *
 390  * Get the common father of the to processing units, and the first different
 391  * father in the chain
 392  */
 393 static void elements_father(const char *src, const char *dst,
 394                             AS_t * res_father,
 395                             AS_t * res_src,
 396                             AS_t * res_dst)
 397 {
 398   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 399 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 400   AS_t src_as, dst_as;
 401   AS_t path_src[ELEMENTS_FATHER_MAXDEPTH];
 402   AS_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
 403   int index_src = 0;
 404   int index_dst = 0;
 405   AS_t current;
 406   AS_t current_src;
 407   AS_t current_dst;
 408   AS_t father;
 409
 410   /* (1) find the as where the src and dst are located */
 411   network_element_info_t src_data = xbt_lib_get_or_null(host_lib, src,
 412                                                         ROUTING_HOST_LEVEL);
 413   network_element_info_t dst_data = xbt_lib_get_or_null(host_lib, dst,
 414                                                         ROUTING_HOST_LEVEL);
 415   if (!src_data)
 416     src_data = xbt_lib_get_or_null(as_router_lib, src, ROUTING_ASR_LEVEL);
 417   if (!dst_data)
 418     dst_data = xbt_lib_get_or_null(as_router_lib, dst, ROUTING_ASR_LEVEL);
 419   src_as = src_data->rc_component;
 420   dst_as = dst_data->rc_component;
 421
 422   xbt_assert(src_as && dst_as,
 423              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src, dst);
 424
 425   /* (2) find the path to the root routing component */
 426   for (current = src_as; current != NULL; current = current->routing_father) {
 427     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 428       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 429     path_src[index_src++] = current;
 430   }
 431   for (current = dst_as; current != NULL; current = current->routing_father) {
 432     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 433       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 434     path_dst[index_dst++] = current;
 435   }
 436
 437   /* (3) find the common father */
 438   do {
 439     current_src = path_src[--index_src];
 440     current_dst = path_dst[--index_dst];
 441   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 442
 443   /* (4) they are not in the same routing component, make the path */
 444   if (current_src == current_dst)
 445     father = current_src;
 446   else
 447     father = path_src[index_src + 1];
 448
 449   /* (5) result generation */
 450   *res_father = father;         /* first the common father of src and dst */
 451   *res_src = current_src;       /* second the first different father of src */
 452   *res_dst = current_dst;       /* three  the first different father of dst */
 453
 454 #undef ELEMENTS_FATHER_MAXDEPTH
 455 }
 456
 457 /* Global Business methods */
 458
 459 /**
 460  * \brief Recursive function for get_route_latency
 461  *
 462  * \param src the source host name
 463  * \param dst the destination host name
 464  * \param *e_route the route where the links are stored
 465  * \param *latency the latency, if needed
 466  *
 467  * This function is called by "get_route" and "get_latency". It allows to walk
 468  * recursively through the routing components tree.
 469  */
 470 static void _get_route_latency(const char *src, const char *dst,
 471                                xbt_dynar_t * route, double *latency)
 472 {
 473   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src, dst);
 474   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 475
 476   AS_t common_father;
 477   AS_t src_father;
 478   AS_t dst_father;
 479   elements_father(src, dst, &common_father, &src_father, &dst_father);
 480
 481   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 482
 483     route_extended_t e_route = NULL;
 484     if (route) {
 485       e_route = common_father->get_route(common_father, src, dst);
 486       xbt_assert(e_route, "no route between \"%s\" and \"%s\"", src, dst);
 487       *route = e_route->generic_route.link_list;
 488     }
 489     if (latency) {
 490       *latency = common_father->get_latency(common_father, src, dst, e_route);
 491       xbt_assert(*latency >= 0.0,
 492                  "latency error on route between \"%s\" and \"%s\"", src, dst);
 493     }
 494     if (e_route) {
 495       xbt_free(e_route->src_gateway);
 496       xbt_free(e_route->dst_gateway);
 497       xbt_free(e_route);
 498     }
 499
 500   } else {                      /* SURF_ROUTING_RECURSIVE */
 501
 502     route_extended_t e_route_bypass = NULL;
 503     if (common_father->get_bypass_route)
 504       e_route_bypass = common_father->get_bypass_route(common_father, src, dst);
 505
 506     xbt_assert(!latency || !e_route_bypass,
 507                "Bypass cannot work yet with get_latency");
 508
 509     route_extended_t e_route_cnt = e_route_bypass
 510         ? e_route_bypass : common_father->get_route(common_father,
 511                                                     src_father->name,
 512                                                     dst_father->name);
 513
 514     xbt_assert(e_route_cnt, "no route between \"%s\" and \"%s\"",
 515                src_father->name, dst_father->name);
 516
 517     xbt_assert((e_route_cnt->src_gateway == NULL) ==
 518                (e_route_cnt->dst_gateway == NULL),
 519                "bad gateway for route between \"%s\" and \"%s\"", src, dst);
 520
 521     if (route) {
 522       *route = xbt_dynar_new(global_routing->size_of_link, NULL);
 523     }
 524     if (latency) {
 525       *latency = common_father->get_latency(common_father,
 526                                             src_father->name, dst_father->name,
 527                                             e_route_cnt);
 528       xbt_assert(*latency >= 0.0,
 529                  "latency error on route between \"%s\" and \"%s\"",
 530                  src_father->name, dst_father->name);
 531     }
 532
 533     void *link;
 534     unsigned int cpt;
 535
 536     if (strcmp(src, e_route_cnt->src_gateway)) {
 537       double latency_src;
 538       xbt_dynar_t route_src;
 539
 540       _get_route_latency(src, e_route_cnt->src_gateway,
 541                          (route ? &route_src : NULL),
 542                          (latency ? &latency_src : NULL));
 543       if (route) {
 544         xbt_assert(route_src, "no route between \"%s\" and \"%s\"",
 545                    src, e_route_cnt->src_gateway);
 546         xbt_dynar_foreach(route_src, cpt, link) {
 547           xbt_dynar_push(*route, &link);
 548         }
 549         xbt_dynar_free(&route_src);
 550       }
 551       if (latency) {
 552         xbt_assert(latency_src >= 0.0,
 553                    "latency error on route between \"%s\" and \"%s\"",
 554                    src, e_route_cnt->src_gateway);
 555         *latency += latency_src;
 556       }
 557     }
 558
 559     if (route) {
 560       xbt_dynar_foreach(e_route_cnt->generic_route.link_list, cpt, link) {
 561         xbt_dynar_push(*route, &link);
 562       }
 563     }
 564
 565     if (strcmp(e_route_cnt->dst_gateway, dst)) {
 566       double latency_dst;
 567       xbt_dynar_t route_dst;
 568
 569       _get_route_latency(e_route_cnt->dst_gateway, dst,
 570                          (route ? &route_dst : NULL),
 571                          (latency ? &latency_dst : NULL));
 572       if (route) {
 573         xbt_assert(route_dst, "no route between \"%s\" and \"%s\"",
 574                    e_route_cnt->dst_gateway, dst);
 575         xbt_dynar_foreach(route_dst, cpt, link) {
 576           xbt_dynar_push(*route, &link);
 577         }
 578         xbt_dynar_free(&route_dst);
 579       }
 580       if (latency) {
 581         xbt_assert(latency_dst >= 0.0,
 582                    "latency error on route between \"%s\" and \"%s\"",
 583                    e_route_cnt->dst_gateway, dst);
 584         *latency += latency_dst;
 585       }
 586     }
 587
 588     generic_free_extended_route(e_route_cnt);
 589   }
 590 }
 591
 592 /**
 593  * \brief Generic function for get_route, get_route_no_cleanup, and get_latency
 594  */
 595 static void get_route_latency(const char *src, const char *dst,
 596                               xbt_dynar_t * route, double *latency, int cleanup)
 597 {
 598   _get_route_latency(src, dst, route, latency);
 599   xbt_assert(!route || *route, "no route between \"%s\" and \"%s\"", src, dst);
 600   xbt_assert(!latency || *latency >= 0.0,
 601              "latency error on route between \"%s\" and \"%s\"", src, dst);
 602   if (route) {
 603     xbt_dynar_free(&global_routing->last_route);
 604     global_routing->last_route = cleanup ? *route : NULL;
 605   }
 606 }
 607
 608 /**
 609  * \brief Generic method: find a route between hosts
 610  *
 611  * \param src the source host name
 612  * \param dst the destination host name
 613  *
 614  * walk through the routing components tree and find a route between hosts
 615  * by calling the differents "get_route" functions in each routing component.
 616  * No need to free the returned dynar. It will be freed at the next call.
 617  */
 618 static xbt_dynar_t get_route(const char *src, const char *dst)
 619 {
 620   xbt_dynar_t route = NULL;
 621   get_route_latency(src, dst, &route, NULL, 1);
 622   return route;
 623 }
 624
 625 /**
 626  * \brief Generic method: find a route between hosts
 627  *
 628  * \param src the source host name
 629  * \param dst the destination host name
 630  *
 631  * same as get_route, but return NULL if any exception is raised.
 632  */
 633 static xbt_dynar_t get_route_or_null(const char *src, const char *dst)
 634 {
 635   xbt_dynar_t route = NULL;
 636   xbt_ex_t exception;
 637   TRY {
 638     get_route_latency(src, dst, &route, NULL, 1);
 639   } CATCH(exception) {
 640     xbt_ex_free(exception);
 641     return NULL;
 642   }
 643   return route;
 644 }
 645
 646 /**
 647  * \brief Generic method: find a route between hosts
 648  *
 649  * \param src the source host name
 650  * \param dst the destination host name
 651  *
 652  * walk through the routing components tree and find a route between hosts
 653  * by calling the differents "get_route" functions in each routing component.
 654  * Leaves the caller the responsability to clean the returned dynar.
 655  */
 656 static xbt_dynar_t get_route_no_cleanup(const char *src, const char *dst)
 657 {
 658   xbt_dynar_t route = NULL;
 659   get_route_latency(src, dst, &route, NULL, 0);
 660   return route;
 661 }
 662
 663 static double get_latency(const char *src, const char *dst) {
 664   double latency = -1.0;
 665   get_route_latency(src, dst, NULL, &latency, 0);
 666   return latency;
 667 }
 668
 669 /**
 670  * \brief Recursive function for finalize
 671  *
 672  * \param rc the source host name
 673  *
 674  * This fuction is call by "finalize". It allow to finalize the
 675  * AS or routing components. It delete all the structures.
 676  */
 677 static void finalize_rec(AS_t as) {
 678   xbt_dict_cursor_t cursor = NULL;
 679   char *key;
 680   AS_t elem;
 681
 682   xbt_dict_foreach(as->routing_sons, cursor, key, elem)
 683   finalize_rec(elem);
 684
 685   xbt_dict_free(&as->routing_sons);
 686   xbt_free(as->name);
 687   as->finalize(as);
 688 }
 689
 690 /**
 691  * \brief Generic method: delete all the routing structures
 692  *
 693  * walk through the routing components tree and delete the structures
 694  * by calling the different "finalize" functions in each routing component
 695  */
 696 static void finalize(void) {
 697   finalize_rec(global_routing->root);
 698   xbt_dynar_free(&global_routing->last_route);
 699   xbt_free(global_routing);
 700 }
 701
 702 static xbt_dynar_t recursive_get_onelink_routes(AS_t rc)
 703 {
 704   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
 705
 706   //adding my one link routes
 707   unsigned int cpt;
 708   void *link;
 709   xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
 710   if (onelink_mine) {
 711     xbt_dynar_foreach(onelink_mine, cpt, link) {
 712       xbt_dynar_push(ret, &link);
 713     }
 714   }
 715   //recursing
 716   char *key;
 717   xbt_dict_cursor_t cursor = NULL;
 718   AS_t rc_child;
 719   xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
 720     xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
 721     if (onelink_child) {
 722       xbt_dynar_foreach(onelink_child, cpt, link) {
 723         xbt_dynar_push(ret, &link);
 724       }
 725     }
 726   }
 727   return ret;
 728 }
 729
 730 static xbt_dynar_t get_onelink_routes(void)
 731 {
 732   return recursive_get_onelink_routes(global_routing->root);
 733 }
 734
 735 e_surf_network_element_type_t get_network_element_type(const char *name)
 736 {
 737   network_element_info_t rc = NULL;
 738
 739   rc = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
 740   if (rc)
 741     return rc->rc_type;
 742
 743   rc = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
 744   if (rc)
 745     return rc->rc_type;
 746
 747   return SURF_NETWORK_ELEMENT_NULL;
 748 }
 749
 750 /**
 751  * \brief Generic method: create the global routing schema
 752  *
 753  * Make a global routing structure and set all the parsing functions.
 754  */
 755 void routing_model_create(size_t size_of_links, void *loopback)
 756 {
 757   /* config the uniq global routing */
 758   global_routing = xbt_new0(s_routing_global_t, 1);
 759   global_routing->root = NULL;
 760   global_routing->get_route = get_route;
 761   global_routing->get_route_or_null = get_route_or_null;
 762   global_routing->get_latency = get_latency;
 763   global_routing->get_route_no_cleanup = get_route_no_cleanup;
 764   global_routing->get_onelink_routes = get_onelink_routes;
 765   global_routing->get_route_latency = get_route_latency;
 766   global_routing->get_network_element_type = get_network_element_type;
 767   global_routing->finalize = finalize;
 768   global_routing->loopback = loopback;
 769   global_routing->size_of_link = size_of_links;
 770   global_routing->last_route = NULL;
 771   /* no current routing at moment */
 772   current_routing = NULL;
 773 }
 774
 775
 776 /* ************************************************** */
 777 /* ********** PATERN FOR NEW ROUTING **************** */
 778
 779 /* The minimal configuration of a new routing model need the next functions,
 780  * also you need to set at the start of the file, the new model in the model
 781  * list. Remember keep the null ending of the list.
 782  */
 783 /*** Routing model structure ***/
 784 // typedef struct {
 785 //   s_routing_component_t generic_routing;
 786 //   /* things that your routing model need */
 787 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 788
 789 /*** Parse routing model functions ***/
 790 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 791 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 792 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 793 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 794 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 795
 796 /*** Business methods ***/
 797 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 798 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 799 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 800
 801 /*** Creation routing model functions ***/
 802 // static void* model_NEW_create(void) {
 803 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 804 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 805 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 806 //   new_component->generic_routing.set_route = model_NEW_set_route;
 807 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 808 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 809 //   new_component->generic_routing.get_route = NEW_get_route;
 810 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 811 //   new_component->generic_routing.finalize = NEW_finalize;
 812 //   /* initialization of internal structures */
 813 //   return new_component;
 814 // } /* mandatory */
 815 // static void  model_NEW_load(void) {}   /* mandatory */
 816 // static void  model_NEW_unload(void) {} /* mandatory */
 817 // static void  model_NEW_end(void) {}    /* mandatory */
 818
 819 /* ************************************************************************** */
 820 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 821
 822
 823 static void routing_parse_cluster(void)
 824 {
 825   char *host_id, *groups, *link_id = NULL;
 826   xbt_dict_t patterns = NULL;
 827
 828   s_sg_platf_host_cbarg_t host;
 829   s_sg_platf_link_cbarg_t link;
 830
 831   if (strcmp(struct_cluster->availability_trace, "")
 832       || strcmp(struct_cluster->state_trace, "")) {
 833     patterns = xbt_dict_new();
 834     xbt_dict_set(patterns, "id", xbt_strdup(struct_cluster->id), free);
 835     xbt_dict_set(patterns, "prefix", xbt_strdup(struct_cluster->prefix), free);
 836     xbt_dict_set(patterns, "suffix", xbt_strdup(struct_cluster->suffix), free);
 837   }
 838
 839   unsigned int iter;
 840   int start, end, i;
 841   xbt_dynar_t radical_elements;
 842   xbt_dynar_t radical_ends;
 843
 844   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", struct_cluster->id);
 845   sg_platf_new_AS_begin(struct_cluster->id, "Cluster");
 846
 847   //Make all hosts
 848   radical_elements = xbt_str_split(struct_cluster->radical, ",");
 849   xbt_dynar_foreach(radical_elements, iter, groups) {
 850     memset(&host, 0, sizeof(host));
 851
 852     radical_ends = xbt_str_split(groups, "-");
 853     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 854
 855     switch (xbt_dynar_length(radical_ends)) {
 856     case 1:
 857       end = start;
 858       break;
 859     case 2:
 860       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 861       break;
 862     default:
 863       surf_parse_error("Malformed radical");
 864       break;
 865     }
 866     for (i = start; i <= end; i++) {
 867       host_id =
 868           bprintf("%s%d%s", struct_cluster->prefix, i, struct_cluster->suffix);
 869       link_id = bprintf("%s_link_%d", struct_cluster->id, i);
 870
 871       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id,
 872                 struct_cluster->power);
 873       host.id = host_id;
 874       if (strcmp(struct_cluster->availability_trace, "")) {
 875         xbt_dict_set(patterns, "radical", bprintf("%d", i), xbt_free);
 876         char *tmp_availability_file =
 877             xbt_strdup(struct_cluster->availability_trace);
 878         xbt_str_varsubst(tmp_availability_file, patterns);
 879         XBT_DEBUG("\tavailability_file=\"%s\"", tmp_availability_file);
 880         host.power_trace = tmgr_trace_new(tmp_availability_file);
 881         xbt_free(tmp_availability_file);
 882       } else {
 883         XBT_DEBUG("\tavailability_file=\"\"");
 884       }
 885       if (strcmp(struct_cluster->state_trace, "")) {
 886         char *tmp_state_file = xbt_strdup(struct_cluster->state_trace);
 887         xbt_str_varsubst(tmp_state_file, patterns);
 888         XBT_DEBUG("\tstate_file=\"%s\"", tmp_state_file);
 889         host.state_trace = tmgr_trace_new(tmp_state_file);
 890         xbt_free(tmp_state_file);
 891       } else {
 892         XBT_DEBUG("\tstate_file=\"\"");
 893       }
 894
 895       host.power_peak = struct_cluster->power;
 896       host.power_scale = 1.0;
 897       host.core_amount = struct_cluster->core_amount;
 898       host.initial_state = SURF_RESOURCE_ON;
 899       host.coord = "";
 900       sg_platf_new_host(&host);
 901       XBT_DEBUG("</host>");
 902
 903       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 904                 struct_cluster->bw, struct_cluster->lat);
 905
 906       memset(&link, 0, sizeof(link));
 907       link.id = link_id;
 908       link.bandwidth = struct_cluster->bw;
 909       link.latency = struct_cluster->lat;
 910       link.state = SURF_RESOURCE_ON;
 911
 912       switch (struct_cluster->sharing_policy) {
 913       case A_surfxml_cluster_sharing_policy_SHARED:
 914         link.policy = SURF_LINK_SHARED;
 915         break;
 916       case A_surfxml_cluster_sharing_policy_FULLDUPLEX:
 917         link.policy = SURF_LINK_FULLDUPLEX;
 918         break;
 919       case A_surfxml_cluster_sharing_policy_FATPIPE:
 920         link.policy = SURF_LINK_FATPIPE;
 921         break;
 922       default:
 923         surf_parse_error(bprintf
 924                          ("Invalid cluster sharing policy for cluster %s",
 925                           struct_cluster->id));
 926         break;
 927       }
 928       sg_platf_new_link(&link);
 929
 930       surf_parsing_link_up_down_t info =
 931           xbt_new0(s_surf_parsing_link_up_down_t, 1);
 932       if (link.policy == SURF_LINK_FULLDUPLEX) {
 933         char *tmp_link = bprintf("%s_UP", link_id);
 934         info->link_up =
 935             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 936         free(tmp_link);
 937         tmp_link = bprintf("%s_DOWN", link_id);
 938         info->link_down =
 939             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 940         free(tmp_link);
 941       } else {
 942         info->link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
 943         info->link_down = info->link_up;
 944       }
 945       surf_routing_cluster_add_link(host_id, info);
 946
 947       xbt_free(link_id);
 948       xbt_free(host_id);
 949     }
 950
 951     xbt_dynar_free(&radical_ends);
 952   }
 953   xbt_dynar_free(&radical_elements);
 954
 955   // 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
 956   XBT_DEBUG(" ");
 957   XBT_DEBUG("<router id=\"%s\"/>", struct_cluster->router_id);
 958   s_sg_platf_router_cbarg_t router;
 959   char *newid = NULL;
 960   memset(&router, 0, sizeof(router));
 961   router.id = struct_cluster->router_id;
 962   router.coord = "";
 963   if (!router.id || !strcmp(router.id, ""))
 964     router.id = newid =
 965         bprintf("%s%s_router%s", struct_cluster->prefix, struct_cluster->id,
 966                 struct_cluster->suffix);
 967   sg_platf_new_router(&router);
 968   free(newid);
 969
 970   //Make the backbone
 971   if ((struct_cluster->bb_bw != 0) && (struct_cluster->bb_lat != 0)) {
 972     char *link_backbone = bprintf("%s_backbone", struct_cluster->id);
 973     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
 974               struct_cluster->bb_bw, struct_cluster->bb_lat);
 975
 976     memset(&link, 0, sizeof(link));
 977     link.id = link_backbone;
 978     link.bandwidth = struct_cluster->bb_bw;
 979     link.latency = struct_cluster->bb_lat;
 980     link.state = SURF_RESOURCE_ON;
 981
 982     switch (struct_cluster->bb_sharing_policy) {
 983     case A_surfxml_cluster_bb_sharing_policy_FATPIPE:
 984       link.policy = SURF_LINK_FATPIPE;
 985       break;
 986     case A_surfxml_cluster_bb_sharing_policy_SHARED:
 987       link.policy = SURF_LINK_SHARED;
 988       break;
 989     default:
 990       surf_parse_error(bprintf
 991                        ("Invalid bb sharing policy in cluster %s",
 992                         struct_cluster->id));
 993       break;
 994     }
 995
 996     sg_platf_new_link(&link);
 997
 998     surf_parsing_link_up_down_t info =
 999         xbt_new0(s_surf_parsing_link_up_down_t, 1);
1000     info->link_up =
1001         xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL);
1002     info->link_down = info->link_up;
1003     surf_routing_cluster_add_link(struct_cluster->id, info);
1004
1005     free(link_backbone);
1006   }
1007
1008   XBT_DEBUG(" ");
1009
1010   char *new_suffix = xbt_strdup("");
1011
1012   radical_elements = xbt_str_split(struct_cluster->suffix, ".");
1013   xbt_dynar_foreach(radical_elements, iter, groups) {
1014     if (strcmp(groups, "")) {
1015       char *old_suffix = new_suffix;
1016       new_suffix = bprintf("%s\\.%s", old_suffix, groups);
1017       free(old_suffix);
1018     }
1019   }
1020
1021   xbt_dynar_free(&radical_elements);
1022   xbt_free(new_suffix);
1023
1024   XBT_DEBUG("</AS>");
1025   sg_platf_new_AS_end();
1026   XBT_DEBUG(" ");
1027   xbt_dict_free(&patterns); // no op if it were never set
1028 }
1029
1030 static void routing_parse_postparse(void) {
1031   xbt_dict_free(&random_value);
1032 }
1033
1034 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1035 {
1036   static int AX_ptr = 0;
1037   char *host_id = NULL;
1038   char *router_id, *link_router, *link_backbone, *link_id_up, *link_id_down;
1039
1040   static unsigned int surfxml_buffer_stack_stack_ptr = 1;
1041   static unsigned int surfxml_buffer_stack_stack[1024];
1042
1043   surfxml_buffer_stack_stack[0] = 0;
1044
1045   surfxml_bufferstack_push(1);
1046
1047   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Full\">", peer->id);
1048   sg_platf_new_AS_begin(peer->id, "Full");
1049
1050   XBT_DEBUG(" ");
1051   host_id = HOST_PEER(peer->id);
1052   router_id = ROUTER_PEER(peer->id);
1053   link_id_up = LINK_UP_PEER(peer->id);
1054   link_id_down = LINK_DOWN_PEER(peer->id);
1055
1056   link_router = bprintf("%s_link_router", peer->id);
1057   link_backbone = bprintf("%s_backbone", peer->id);
1058
1059   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1060   s_sg_platf_host_cbarg_t host;
1061   memset(&host, 0, sizeof(host));
1062   host.initial_state = SURF_RESOURCE_ON;
1063   host.id = host_id;
1064   host.power_peak = peer->power;
1065   host.power_scale = 1.0;
1066   host.power_trace = peer->availability_trace;
1067   host.state_trace = peer->state_trace;
1068   host.core_amount = 1;
1069   sg_platf_new_host(&host);
1070
1071
1072   XBT_DEBUG("<router id=\"%s\"\tcoordinates=\"%s\"/>", router_id, peer->coord);
1073   s_sg_platf_router_cbarg_t router;
1074   memset(&router, 0, sizeof(router));
1075   router.id = router_id;
1076   router.coord = peer->coord;
1077   sg_platf_new_router(&router);
1078
1079   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_up,
1080             peer->bw_in, peer->lat);
1081   s_sg_platf_link_cbarg_t link;
1082   memset(&link, 0, sizeof(link));
1083   link.state = SURF_RESOURCE_ON;
1084   link.policy = SURF_LINK_SHARED;
1085   link.id = link_id_up;
1086   link.bandwidth = peer->bw_in;
1087   link.latency = peer->lat;
1088   sg_platf_new_link(&link);
1089
1090   // FIXME: dealing with full duplex is not the role of this piece of code, I'd say [Mt]
1091   // Instead, it should be created fullduplex, and the models will do what's needed in this case
1092   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_down,
1093             peer->bw_out, peer->lat);
1094   link.id = link_id_down;
1095   sg_platf_new_link(&link);
1096
1097   XBT_DEBUG(" ");
1098
1099   // begin here
1100   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", host_id, router_id);
1101   XBT_DEBUG("symmetrical=\"NO\">");
1102   SURFXML_BUFFER_SET(route_src, host_id);
1103   SURFXML_BUFFER_SET(route_dst, router_id);
1104   A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1105   SURFXML_START_TAG(route);
1106
1107   XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_up);
1108   SURFXML_BUFFER_SET(link_ctn_id, link_id_up);
1109   A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1110   SURFXML_START_TAG(link_ctn);
1111   SURFXML_END_TAG(link_ctn);
1112
1113   XBT_DEBUG("</route>");
1114   SURFXML_END_TAG(route);
1115
1116   //Opposite Route
1117   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", router_id, host_id);
1118   XBT_DEBUG("symmetrical=\"NO\">");
1119   SURFXML_BUFFER_SET(route_src, router_id);
1120   SURFXML_BUFFER_SET(route_dst, host_id);
1121   A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1122   SURFXML_START_TAG(route);
1123
1124   XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_down);
1125   SURFXML_BUFFER_SET(link_ctn_id, link_id_down);
1126   A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1127   SURFXML_START_TAG(link_ctn);
1128   SURFXML_END_TAG(link_ctn);
1129
1130   XBT_DEBUG("</route>");
1131   SURFXML_END_TAG(route);
1132
1133   XBT_DEBUG("</AS>");
1134   sg_platf_new_AS_end();
1135   XBT_DEBUG(" ");
1136
1137   //xbt_dynar_free(&tab_elements_num);
1138   free(host_id);
1139   free(router_id);
1140   free(link_router);
1141   free(link_backbone);
1142   free(link_id_up);
1143   free(link_id_down);
1144   surfxml_bufferstack_pop(1);
1145 }
1146
1147 static void routing_parse_Srandom(void)
1148 {
1149   double mean, std, min, max, seed;
1150   char *random_id = A_surfxml_random_id;
1151   char *random_radical = A_surfxml_random_radical;
1152   char *rd_name = NULL;
1153   char *rd_value;
1154   mean = surf_parse_get_double(A_surfxml_random_mean);
1155   std = surf_parse_get_double(A_surfxml_random_std_deviation);
1156   min = surf_parse_get_double(A_surfxml_random_min);
1157   max = surf_parse_get_double(A_surfxml_random_max);
1158   seed = surf_parse_get_double(A_surfxml_random_seed);
1159
1160   double res = 0;
1161   int i = 0;
1162   random_data_t random = xbt_new0(s_random_data_t, 1);
1163   char *tmpbuf;
1164
1165   xbt_dynar_t radical_elements;
1166   unsigned int iter;
1167   char *groups;
1168   int start, end;
1169   xbt_dynar_t radical_ends;
1170
1171   random->generator = A_surfxml_random_generator;
1172   random->seed = seed;
1173   random->min = min;
1174   random->max = max;
1175
1176   /* Check user stupidities */
1177   if (max < min)
1178     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1179   if (mean < min)
1180     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1181   if (mean > max)
1182     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1183
1184   /* normalize the mean and standard deviation before storing */
1185   random->mean = (mean - min) / (max - min);
1186   random->std = std / (max - min);
1187
1188   if (random->mean * (1 - random->mean) < random->std * random->std)
1189     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1190            random->mean, random->std);
1191
1192   XBT_DEBUG
1193       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1194        random_id, random->min, random->max, random->mean, random->std,
1195        random->generator, random->seed, random_radical);
1196
1197   if (xbt_dict_size(random_value) == 0)
1198     random_value = xbt_dict_new();
1199
1200   if (!strcmp(random_radical, "")) {
1201     res = random_generate(random);
1202     rd_value = bprintf("%f", res);
1203     xbt_dict_set(random_value, random_id, rd_value, free);
1204   } else {
1205     radical_elements = xbt_str_split(random_radical, ",");
1206     xbt_dynar_foreach(radical_elements, iter, groups) {
1207       radical_ends = xbt_str_split(groups, "-");
1208       switch (xbt_dynar_length(radical_ends)) {
1209       case 1:
1210         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1211                    "Custom Random '%s' already exists !", random_id);
1212         res = random_generate(random);
1213         tmpbuf =
1214             bprintf("%s%d", random_id,
1215                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1216         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), free);
1217         xbt_free(tmpbuf);
1218         break;
1219
1220       case 2:
1221         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1222         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1223         for (i = start; i <= end; i++) {
1224           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1225                      "Custom Random '%s' already exists !", bprintf("%s%d",
1226                                                                     random_id,
1227                                                                     i));
1228           res = random_generate(random);
1229           tmpbuf = bprintf("%s%d", random_id, i);
1230           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), free);
1231           xbt_free(tmpbuf);
1232         }
1233         break;
1234       default:
1235         XBT_INFO("Malformed radical");
1236         break;
1237       }
1238       res = random_generate(random);
1239       rd_name = bprintf("%s_router", random_id);
1240       rd_value = bprintf("%f", res);
1241       xbt_dict_set(random_value, rd_name, rd_value, free);
1242
1243       xbt_dynar_free(&radical_ends);
1244     }
1245     free(rd_name);
1246     xbt_dynar_free(&radical_elements);
1247   }
1248 }
1249
1250 void routing_register_callbacks()
1251 {
1252   sg_platf_host_add_cb(parse_S_host);
1253   sg_platf_router_add_cb(parse_S_router);
1254
1255   surfxml_add_callback(STag_surfxml_random_cb_list, &routing_parse_Srandom);
1256
1257   surfxml_add_callback(STag_surfxml_route_cb_list, &routing_parse_S_route);
1258   surfxml_add_callback(STag_surfxml_ASroute_cb_list, &routing_parse_S_ASroute);
1259   surfxml_add_callback(STag_surfxml_bypassRoute_cb_list,
1260                        &routing_parse_S_bypassRoute);
1261
1262   surfxml_add_callback(ETag_surfxml_link_ctn_cb_list, &routing_parse_link_ctn);
1263
1264   surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_parse_E_route);
1265   surfxml_add_callback(ETag_surfxml_ASroute_cb_list, &routing_parse_E_ASroute);
1266   surfxml_add_callback(ETag_surfxml_bypassRoute_cb_list,
1267                        &routing_parse_E_bypassRoute);
1268
1269   surfxml_add_callback(STag_surfxml_cluster_cb_list, &routing_parse_cluster);
1270
1271   sg_platf_peer_add_cb(routing_parse_peer);
1272   sg_platf_postparse_add_cb(routing_parse_postparse);
1273
1274 #ifdef HAVE_TRACING
1275   instr_routing_define_callbacks();
1276 #endif
1277 }