src/surf/surf_routing.c

   1 /* Copyright (c) 2009, 2010, 2011. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include <pcre.h>               /* regular expression library */
   8
   9 #include "simgrid/platf_interface.h"    // platform creation API internal interface
  10
  11 #include "surf_routing_private.h"
  12 #include "surf/surf_routing.h"
  13 #include "surf/surfxml_parse_values.h"
  14
  15 xbt_lib_t host_lib;
  16 int ROUTING_HOST_LEVEL;         //Routing level
  17 int SURF_CPU_LEVEL;             //Surf cpu level
  18 int SURF_WKS_LEVEL;             //Surf workstation level
  19 int SIMIX_HOST_LEVEL;           //Simix level
  20 int MSG_HOST_LEVEL;             //Msg level
  21 int SD_HOST_LEVEL;              //Simdag level
  22 int COORD_HOST_LEVEL;           //Coordinates level
  23 int NS3_HOST_LEVEL;             //host node for ns3
  24
  25 xbt_lib_t link_lib;
  26 int SD_LINK_LEVEL;              //Simdag level
  27 int SURF_LINK_LEVEL;            //Surf level
  28 int NS3_LINK_LEVEL;             //link for ns3
  29
  30 xbt_lib_t as_router_lib;
  31 int ROUTING_ASR_LEVEL;          //Routing level
  32 int COORD_ASR_LEVEL;            //Coordinates level
  33 int NS3_ASR_LEVEL;              //host node for ns3
  34
  35 static xbt_dict_t patterns = NULL;
  36 static xbt_dict_t random_value = NULL;
  37
  38 /* Global vars */
  39 routing_global_t global_routing = NULL;
  40 routing_component_t current_routing = NULL;
  41 model_type_t current_routing_model = NULL;
  42
  43 /* global parse functions */
  44 xbt_dynar_t link_list = NULL;   /* temporary store of current list link of a route */
  45 static const char *src = NULL;  /* temporary store the source name of a route */
  46 static const char *dst = NULL;  /* temporary store the destination name of a route */
  47 static char *gw_src = NULL;     /* temporary store the gateway source name of a route */
  48 static char *gw_dst = NULL;     /* temporary store the gateway destination name of a route */
  49
  50 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  51
  52 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  53 static void routing_parse_Srandom(void);        /* random bypass */
  54
  55 static char *replace_random_parameter(char *chaine);
  56 static void routing_parse_postparse(void);
  57
  58 /* this lines are only for replace use like index in the model table */
  59 typedef enum {
  60   SURF_MODEL_FULL = 0,
  61   SURF_MODEL_FLOYD,
  62   SURF_MODEL_DIJKSTRA,
  63   SURF_MODEL_DIJKSTRACACHE,
  64   SURF_MODEL_NONE,
  65   SURF_MODEL_RULEBASED,
  66   SURF_MODEL_VIVALDI,
  67   SURF_MODEL_CLUSTER
  68 } e_routing_types;
  69
  70 struct s_model_type routing_models[] = {
  71   {"Full",
  72    "Full routing data (fast, large memory requirements, fully expressive)",
  73    model_full_create, 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   model_type_t model = NULL;
 299   int cpt;
 300
 301   surf_parse_models_setup();    /* ensure that the models are created after the last <config> tag and before the first <AS>-like */
 302
 303   /* search the routing model */
 304   for (cpt = 0; routing_models[cpt].name; cpt++)
 305     if (!strcmp(wanted_routing_type, routing_models[cpt].name))
 306       model = &routing_models[cpt];
 307   /* if its not exist, error */
 308   if (model == NULL) {
 309     fprintf(stderr, "Routing model %s not found. Existing models:\n",
 310             wanted_routing_type);
 311     for (cpt = 0; routing_models[cpt].name; cpt++)
 312       fprintf(stderr, "   %s: %s\n", routing_models[cpt].name,
 313               routing_models[cpt].desc);
 314     xbt_die(NULL);
 315   }
 316
 317   /* make a new routing component */
 318   new_routing = (routing_component_t) (*(model->create)) ();
 319   new_routing->routing = model;
 320   new_routing->hierarchy = SURF_ROUTING_NULL;
 321   new_routing->name = xbt_strdup(AS_id);
 322   new_routing->routing_sons = xbt_dict_new();
 323
 324   if (current_routing == NULL && global_routing->root == NULL) {
 325
 326     /* it is the first one */
 327     new_routing->routing_father = NULL;
 328     global_routing->root = new_routing;
 329
 330   } else if (current_routing != NULL && global_routing->root != NULL) {
 331
 332     xbt_assert(!xbt_dict_get_or_null
 333                (current_routing->routing_sons, AS_id),
 334                "The AS \"%s\" already exists", AS_id);
 335     /* it is a part of the tree */
 336     new_routing->routing_father = current_routing;
 337     /* set the father behavior */
 338     if (current_routing->hierarchy == SURF_ROUTING_NULL)
 339       current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
 340     /* add to the sons dictionary */
 341     xbt_dict_set(current_routing->routing_sons, AS_id,
 342                  (void *) new_routing, NULL);
 343     /* add to the father element list */
 344     (*(current_routing->parse_AS)) (current_routing, AS_id);
 345   } else {
 346     THROWF(arg_error, 0, "All defined components must be belong to a AS");
 347   }
 348   /* set the new current component of the tree */
 349   current_routing = new_routing;
 350 }
 351
 352 /**
 353  * \brief Specify that the current description of AS is finished
 354  *
 355  * Once you've declared all the content of your AS, you have to close
 356  * it with this call. Your AS is not usable until you call this function.
 357  *
 358  * @fixme: this call is not as robust as wanted: bad things WILL happen
 359  * if you call it twice for the same AS, or if you forget calling it, or
 360  * even if you add stuff to a closed AS
 361  *
 362  */
 363 void routing_AS_end()
 364 {
 365
 366   if (current_routing == NULL) {
 367     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 368   } else {
 369     network_element_info_t info = NULL;
 370     xbt_assert(!xbt_lib_get_or_null
 371                (as_router_lib, current_routing->name, ROUTING_ASR_LEVEL),
 372                "The AS \"%s\" already exists", current_routing->name);
 373     info = xbt_new0(s_network_element_info_t, 1);
 374     info->rc_component = current_routing->routing_father;
 375     info->rc_type = SURF_NETWORK_ELEMENT_AS;
 376     xbt_lib_set(as_router_lib, current_routing->name, ROUTING_ASR_LEVEL,
 377                 (void *) info);
 378
 379     if (current_routing->routing->end)
 380       (*(current_routing->routing->end)) ();
 381     current_routing = current_routing->routing_father;
 382   }
 383 }
 384
 385 /* Aux Business methods */
 386
 387 /**
 388  * \brief Get the AS name of the element
 389  *
 390  * \param name the host name
 391  *
 392  */
 393 static char *elements_As_name(const char *name)
 394 {
 395   routing_component_t as_comp;
 396
 397   /* (1) find the as where the host is located */
 398   as_comp = ((network_element_info_t)
 399              xbt_lib_get_or_null(host_lib, name,
 400                                  ROUTING_HOST_LEVEL))->rc_component;
 401   return as_comp->name;
 402 }
 403
 404
 405 /**
 406  * \brief Get the AS father and the first elements of the chain
 407  *
 408  * \param src the source host name
 409  * \param dst the destination host name
 410  *
 411  * Get the common father of the to processing units, and the first different
 412  * father in the chain
 413  */
 414 static void elements_father(const char *src, const char *dst,
 415                             routing_component_t * res_father,
 416                             routing_component_t * res_src,
 417                             routing_component_t * res_dst)
 418 {
 419   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 420 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 421   routing_component_t src_as, dst_as;
 422   routing_component_t path_src[ELEMENTS_FATHER_MAXDEPTH];
 423   routing_component_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
 424   int index_src = 0;
 425   int index_dst = 0;
 426   routing_component_t current;
 427   routing_component_t current_src;
 428   routing_component_t current_dst;
 429   routing_component_t father;
 430
 431   /* (1) find the as where the src and dst are located */
 432   network_element_info_t src_data = xbt_lib_get_or_null(host_lib, src,
 433                                                         ROUTING_HOST_LEVEL);
 434   network_element_info_t dst_data = xbt_lib_get_or_null(host_lib, dst,
 435                                                         ROUTING_HOST_LEVEL);
 436   if (!src_data)
 437     src_data = xbt_lib_get_or_null(as_router_lib, src, ROUTING_ASR_LEVEL);
 438   if (!dst_data)
 439     dst_data = xbt_lib_get_or_null(as_router_lib, dst, ROUTING_ASR_LEVEL);
 440   src_as = src_data->rc_component;
 441   dst_as = dst_data->rc_component;
 442
 443   xbt_assert(src_as && dst_as,
 444              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src, dst);
 445
 446   /* (2) find the path to the root routing component */
 447   for (current = src_as; current != NULL; current = current->routing_father) {
 448     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 449       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 450     path_src[index_src++] = current;
 451   }
 452   for (current = dst_as; current != NULL; current = current->routing_father) {
 453     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 454       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 455     path_dst[index_dst++] = current;
 456   }
 457
 458   /* (3) find the common father */
 459   do {
 460     current_src = path_src[--index_src];
 461     current_dst = path_dst[--index_dst];
 462   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 463
 464   /* (4) they are not in the same routing component, make the path */
 465   if (current_src == current_dst)
 466     father = current_src;
 467   else
 468     father = path_src[index_src + 1];
 469
 470   /* (5) result generation */
 471   *res_father = father;         /* first the common father of src and dst */
 472   *res_src = current_src;       /* second the first different father of src */
 473   *res_dst = current_dst;       /* three  the first different father of dst */
 474
 475 #undef ELEMENTS_FATHER_MAXDEPTH
 476 }
 477
 478 /* Global Business methods */
 479
 480 /**
 481  * \brief Recursive function for get_route_latency
 482  *
 483  * \param src the source host name
 484  * \param dst the destination host name
 485  * \param *e_route the route where the links are stored
 486  * \param *latency the latency, if needed
 487  *
 488  * This function is called by "get_route" and "get_latency". It allows to walk
 489  * recursively through the routing components tree.
 490  */
 491 static void _get_route_latency(const char *src, const char *dst,
 492                                xbt_dynar_t * route, double *latency)
 493 {
 494   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src, dst);
 495   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 496
 497   routing_component_t common_father;
 498   routing_component_t src_father;
 499   routing_component_t dst_father;
 500   elements_father(src, dst, &common_father, &src_father, &dst_father);
 501
 502   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 503
 504     route_extended_t e_route = NULL;
 505     if (route) {
 506       e_route = common_father->get_route(common_father, src, dst);
 507       xbt_assert(e_route, "no route between \"%s\" and \"%s\"", src, dst);
 508       *route = e_route->generic_route.link_list;
 509     }
 510     if (latency) {
 511       *latency = common_father->get_latency(common_father, src, dst, e_route);
 512       xbt_assert(*latency >= 0.0,
 513                  "latency error on route between \"%s\" and \"%s\"", src, dst);
 514     }
 515     if (e_route) {
 516       xbt_free(e_route->src_gateway);
 517       xbt_free(e_route->dst_gateway);
 518       xbt_free(e_route);
 519     }
 520
 521   } else {                      /* SURF_ROUTING_RECURSIVE */
 522
 523     route_extended_t e_route_bypass = NULL;
 524     if (common_father->get_bypass_route)
 525       e_route_bypass = common_father->get_bypass_route(common_father, src, dst);
 526
 527     xbt_assert(!latency || !e_route_bypass,
 528                "Bypass cannot work yet with get_latency");
 529
 530     route_extended_t e_route_cnt = e_route_bypass
 531         ? e_route_bypass : common_father->get_route(common_father,
 532                                                     src_father->name,
 533                                                     dst_father->name);
 534
 535     xbt_assert(e_route_cnt, "no route between \"%s\" and \"%s\"",
 536                src_father->name, dst_father->name);
 537
 538     xbt_assert((e_route_cnt->src_gateway == NULL) ==
 539                (e_route_cnt->dst_gateway == NULL),
 540                "bad gateway for route between \"%s\" and \"%s\"", src, dst);
 541
 542     if (route) {
 543       *route = xbt_dynar_new(global_routing->size_of_link, NULL);
 544     }
 545     if (latency) {
 546       *latency = common_father->get_latency(common_father,
 547                                             src_father->name, dst_father->name,
 548                                             e_route_cnt);
 549       xbt_assert(*latency >= 0.0,
 550                  "latency error on route between \"%s\" and \"%s\"",
 551                  src_father->name, dst_father->name);
 552     }
 553
 554     void *link;
 555     unsigned int cpt;
 556
 557     if (strcmp(src, e_route_cnt->src_gateway)) {
 558       double latency_src;
 559       xbt_dynar_t route_src;
 560
 561       _get_route_latency(src, e_route_cnt->src_gateway,
 562                          (route ? &route_src : NULL),
 563                          (latency ? &latency_src : NULL));
 564       if (route) {
 565         xbt_assert(route_src, "no route between \"%s\" and \"%s\"",
 566                    src, e_route_cnt->src_gateway);
 567         xbt_dynar_foreach(route_src, cpt, link) {
 568           xbt_dynar_push(*route, &link);
 569         }
 570         xbt_dynar_free(&route_src);
 571       }
 572       if (latency) {
 573         xbt_assert(latency_src >= 0.0,
 574                    "latency error on route between \"%s\" and \"%s\"",
 575                    src, e_route_cnt->src_gateway);
 576         *latency += latency_src;
 577       }
 578     }
 579
 580     if (route) {
 581       xbt_dynar_foreach(e_route_cnt->generic_route.link_list, cpt, link) {
 582         xbt_dynar_push(*route, &link);
 583       }
 584     }
 585
 586     if (strcmp(e_route_cnt->dst_gateway, dst)) {
 587       double latency_dst;
 588       xbt_dynar_t route_dst;
 589
 590       _get_route_latency(e_route_cnt->dst_gateway, dst,
 591                          (route ? &route_dst : NULL),
 592                          (latency ? &latency_dst : NULL));
 593       if (route) {
 594         xbt_assert(route_dst, "no route between \"%s\" and \"%s\"",
 595                    e_route_cnt->dst_gateway, dst);
 596         xbt_dynar_foreach(route_dst, cpt, link) {
 597           xbt_dynar_push(*route, &link);
 598         }
 599         xbt_dynar_free(&route_dst);
 600       }
 601       if (latency) {
 602         xbt_assert(latency_dst >= 0.0,
 603                    "latency error on route between \"%s\" and \"%s\"",
 604                    e_route_cnt->dst_gateway, dst);
 605         *latency += latency_dst;
 606       }
 607     }
 608
 609     generic_free_extended_route(e_route_cnt);
 610   }
 611 }
 612
 613 /**
 614  * \brief Generic function for get_route, get_route_no_cleanup, and get_latency
 615  */
 616 static void get_route_latency(const char *src, const char *dst,
 617                               xbt_dynar_t * route, double *latency, int cleanup)
 618 {
 619   _get_route_latency(src, dst, route, latency);
 620   xbt_assert(!route || *route, "no route between \"%s\" and \"%s\"", src, dst);
 621   xbt_assert(!latency || *latency >= 0.0,
 622              "latency error on route between \"%s\" and \"%s\"", src, dst);
 623   if (route) {
 624     xbt_dynar_free(&global_routing->last_route);
 625     global_routing->last_route = cleanup ? *route : NULL;
 626   }
 627 }
 628
 629 /**
 630  * \brief Generic method: find a route between hosts
 631  *
 632  * \param src the source host name
 633  * \param dst the destination host name
 634  *
 635  * walk through the routing components tree and find a route between hosts
 636  * by calling the differents "get_route" functions in each routing component.
 637  * No need to free the returned dynar. It will be freed at the next call.
 638  */
 639 static xbt_dynar_t get_route(const char *src, const char *dst)
 640 {
 641   xbt_dynar_t route = NULL;
 642   get_route_latency(src, dst, &route, NULL, 1);
 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  * same as get_route, but return NULL if any exception is raised.
 653  */
 654 static xbt_dynar_t get_route_or_null(const char *src, const char *dst)
 655 {
 656   xbt_dynar_t route = NULL;
 657   xbt_ex_t exception;
 658   TRY {
 659     get_route_latency(src, dst, &route, NULL, 1);
 660   } CATCH(exception) {
 661     xbt_ex_free(exception);
 662     return NULL;
 663   }
 664   return route;
 665 }
 666
 667 /**
 668  * \brief Generic method: find a route between hosts
 669  *
 670  * \param src the source host name
 671  * \param dst the destination host name
 672  *
 673  * walk through the routing components tree and find a route between hosts
 674  * by calling the differents "get_route" functions in each routing component.
 675  * Leaves the caller the responsability to clean the returned dynar.
 676  */
 677 static xbt_dynar_t get_route_no_cleanup(const char *src, const char *dst)
 678 {
 679   xbt_dynar_t route = NULL;
 680   get_route_latency(src, dst, &route, NULL, 0);
 681   return route;
 682 }
 683
 684 /*Get Latency*/
 685 static double get_latency(const char *src, const char *dst)
 686 {
 687   double latency = -1.0;
 688   get_route_latency(src, dst, NULL, &latency, 0);
 689   return latency;
 690 }
 691
 692 static int surf_parse_models_setup_already_called = 0;
 693 /* Call the last initialization functions, that must be called after the
 694  * <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 695  */
 696 void surf_parse_models_setup()
 697 {
 698   if (surf_parse_models_setup_already_called)
 699     return;
 700   surf_parse_models_setup_already_called = 1;
 701   surf_config_models_setup();
 702 }
 703
 704
 705 /**
 706  * \brief Recursive function for finalize
 707  *
 708  * \param rc the source host name
 709  *
 710  * This fuction is call by "finalize". It allow to finalize the
 711  * AS or routing components. It delete all the structures.
 712  */
 713 static void _finalize(routing_component_t rc)
 714 {
 715   if (rc) {
 716     xbt_dict_cursor_t cursor = NULL;
 717     char *key;
 718     routing_component_t elem;
 719     xbt_dict_foreach(rc->routing_sons, cursor, key, elem) {
 720       _finalize(elem);
 721     }
 722     xbt_dict_t tmp_sons = rc->routing_sons;
 723     char *tmp_name = rc->name;
 724     xbt_dict_free(&tmp_sons);
 725     xbt_free(tmp_name);
 726     xbt_assert(rc->finalize, "no defined method \"finalize\" in \"%s\"",
 727                current_routing->name);
 728     (*(rc->finalize)) (rc);
 729   }
 730 }
 731
 732 /**
 733  * \brief Generic method: delete all the routing structures
 734  *
 735  * walk through the routing components tree and delete the structures
 736  * by calling the differents "finalize" functions in each routing component
 737  */
 738 static void finalize(void)
 739 {
 740   /* delete recursively all the tree */
 741   _finalize(global_routing->root);
 742   /* delete last_route */
 743   xbt_dynar_free(&(global_routing->last_route));
 744   /* delete global routing structure */
 745   xbt_free(global_routing);
 746   /* make sure that we will reinit the models while loading the platf once reinited -- HACK but there is no proper surf_routing_init() */
 747   surf_parse_models_setup_already_called = 0;
 748 }
 749
 750 static xbt_dynar_t recursive_get_onelink_routes(routing_component_t rc)
 751 {
 752   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
 753
 754   //adding my one link routes
 755   unsigned int cpt;
 756   void *link;
 757   xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
 758   if (onelink_mine) {
 759     xbt_dynar_foreach(onelink_mine, cpt, link) {
 760       xbt_dynar_push(ret, &link);
 761     }
 762   }
 763   //recursing
 764   char *key;
 765   xbt_dict_cursor_t cursor = NULL;
 766   routing_component_t rc_child;
 767   xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
 768     xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
 769     if (onelink_child) {
 770       xbt_dynar_foreach(onelink_child, cpt, link) {
 771         xbt_dynar_push(ret, &link);
 772       }
 773     }
 774   }
 775   return ret;
 776 }
 777
 778 static xbt_dynar_t get_onelink_routes(void)
 779 {
 780   return recursive_get_onelink_routes(global_routing->root);
 781 }
 782
 783 e_surf_network_element_type_t get_network_element_type(const char *name)
 784 {
 785   network_element_info_t rc = NULL;
 786
 787   rc = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
 788   if (rc)
 789     return rc->rc_type;
 790
 791   rc = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
 792   if (rc)
 793     return rc->rc_type;
 794
 795   return SURF_NETWORK_ELEMENT_NULL;
 796 }
 797
 798 /**
 799  * \brief Generic method: create the global routing schema
 800  *
 801  * Make a global routing structure and set all the parsing functions.
 802  */
 803 void routing_model_create(size_t size_of_links, void *loopback)
 804 {
 805   /* config the uniq global routing */
 806   global_routing = xbt_new0(s_routing_global_t, 1);
 807   global_routing->root = NULL;
 808   global_routing->get_route = get_route;
 809   global_routing->get_route_or_null = get_route_or_null;
 810   global_routing->get_latency = get_latency;
 811   global_routing->get_route_no_cleanup = get_route_no_cleanup;
 812   global_routing->get_onelink_routes = get_onelink_routes;
 813   global_routing->get_route_latency = get_route_latency;
 814   global_routing->get_network_element_type = get_network_element_type;
 815   global_routing->finalize = finalize;
 816   global_routing->loopback = loopback;
 817   global_routing->size_of_link = size_of_links;
 818   global_routing->last_route = NULL;
 819   /* no current routing at moment */
 820   current_routing = NULL;
 821 }
 822
 823
 824 /* ************************************************** */
 825 /* ********** PATERN FOR NEW ROUTING **************** */
 826
 827 /* The minimal configuration of a new routing model need the next functions,
 828  * also you need to set at the start of the file, the new model in the model
 829  * list. Remember keep the null ending of the list.
 830  */
 831 /*** Routing model structure ***/
 832 // typedef struct {
 833 //   s_routing_component_t generic_routing;
 834 //   /* things that your routing model need */
 835 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 836
 837 /*** Parse routing model functions ***/
 838 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 839 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 840 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 841 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 842 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 843
 844 /*** Business methods ***/
 845 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 846 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 847 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 848
 849 /*** Creation routing model functions ***/
 850 // static void* model_NEW_create(void) {
 851 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 852 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 853 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 854 //   new_component->generic_routing.set_route = model_NEW_set_route;
 855 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 856 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 857 //   new_component->generic_routing.get_route = NEW_get_route;
 858 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 859 //   new_component->generic_routing.finalize = NEW_finalize;
 860 //   /* initialization of internal structures */
 861 //   return new_component;
 862 // } /* mandatory */
 863 // static void  model_NEW_load(void) {}   /* mandatory */
 864 // static void  model_NEW_unload(void) {} /* mandatory */
 865 // static void  model_NEW_end(void) {}    /* mandatory */
 866
 867 /* ************************************************************************** */
 868 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 869
 870
 871 static void routing_parse_cluster(void)
 872 {
 873   char *host_id, *groups, *link_id = NULL;
 874
 875   s_sg_platf_host_cbarg_t host;
 876   s_sg_platf_link_cbarg_t link;
 877
 878   if (strcmp(struct_cluster->availability_trace, "")
 879       || strcmp(struct_cluster->state_trace, "")) {
 880     if (xbt_dict_size(patterns) == 0)
 881       patterns = xbt_dict_new();
 882     xbt_dict_set(patterns, "id", xbt_strdup(struct_cluster->id), free);
 883     xbt_dict_set(patterns, "prefix", xbt_strdup(struct_cluster->prefix), free);
 884     xbt_dict_set(patterns, "suffix", xbt_strdup(struct_cluster->suffix), free);
 885   }
 886
 887   unsigned int iter;
 888   int start, end, i;
 889   xbt_dynar_t radical_elements;
 890   xbt_dynar_t radical_ends;
 891
 892   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", struct_cluster->id);
 893   sg_platf_new_AS_begin(struct_cluster->id, "Cluster");
 894
 895   //Make all hosts
 896   radical_elements = xbt_str_split(struct_cluster->radical, ",");
 897   xbt_dynar_foreach(radical_elements, iter, groups) {
 898     memset(&host, 0, sizeof(host));
 899
 900     radical_ends = xbt_str_split(groups, "-");
 901     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 902
 903     switch (xbt_dynar_length(radical_ends)) {
 904     case 1:
 905       end = start;
 906       break;
 907     case 2:
 908       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 909       break;
 910     default:
 911       surf_parse_error("Malformed radical");
 912       break;
 913     }
 914     for (i = start; i <= end; i++) {
 915       host_id =
 916           bprintf("%s%d%s", struct_cluster->prefix, i, struct_cluster->suffix);
 917       link_id = bprintf("%s_link_%d", struct_cluster->id, i);
 918
 919       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id,
 920                 struct_cluster->power);
 921       host.id = host_id;
 922       if (strcmp(struct_cluster->availability_trace, "")) {
 923         xbt_dict_set(patterns, "radical", bprintf("%d", i), xbt_free);
 924         char *tmp_availability_file =
 925             xbt_strdup(struct_cluster->availability_trace);
 926         xbt_str_varsubst(tmp_availability_file, patterns);
 927         XBT_DEBUG("\tavailability_file=\"%s\"", tmp_availability_file);
 928         host.power_trace = tmgr_trace_new(tmp_availability_file);
 929         xbt_free(tmp_availability_file);
 930       } else {
 931         XBT_DEBUG("\tavailability_file=\"\"");
 932       }
 933       if (strcmp(struct_cluster->state_trace, "")) {
 934         char *tmp_state_file = xbt_strdup(struct_cluster->state_trace);
 935         xbt_str_varsubst(tmp_state_file, patterns);
 936         XBT_DEBUG("\tstate_file=\"%s\"", tmp_state_file);
 937         host.state_trace = tmgr_trace_new(tmp_state_file);
 938         xbt_free(tmp_state_file);
 939       } else {
 940         XBT_DEBUG("\tstate_file=\"\"");
 941       }
 942
 943       host.power_peak = struct_cluster->power;
 944       host.power_scale = 1.0;
 945       host.core_amount = struct_cluster->core_amount;
 946       host.initial_state = SURF_RESOURCE_ON;
 947       host.coord = "";
 948       sg_platf_new_host(&host);
 949       XBT_DEBUG("</host>");
 950
 951       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 952                 struct_cluster->bw, struct_cluster->lat);
 953
 954       memset(&link, 0, sizeof(link));
 955       link.id = link_id;
 956       link.bandwidth = struct_cluster->bw;
 957       link.latency = struct_cluster->lat;
 958       link.state = SURF_RESOURCE_ON;
 959
 960       switch (struct_cluster->sharing_policy) {
 961       case A_surfxml_cluster_sharing_policy_SHARED:
 962         link.policy = SURF_LINK_SHARED;
 963         break;
 964       case A_surfxml_cluster_sharing_policy_FULLDUPLEX:
 965         link.policy = SURF_LINK_FULLDUPLEX;
 966         break;
 967       case A_surfxml_cluster_sharing_policy_FATPIPE:
 968         link.policy = SURF_LINK_FATPIPE;
 969         break;
 970       default:
 971         surf_parse_error(bprintf
 972                          ("Invalid cluster sharing policy for cluster %s",
 973                           struct_cluster->id));
 974         break;
 975       }
 976       sg_platf_new_link(&link);
 977
 978       surf_parsing_link_up_down_t info =
 979           xbt_new0(s_surf_parsing_link_up_down_t, 1);
 980       if (link.policy == SURF_LINK_FULLDUPLEX) {
 981         char *tmp_link = bprintf("%s_UP", link_id);
 982         info->link_up =
 983             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 984         free(tmp_link);
 985         tmp_link = bprintf("%s_DOWN", link_id);
 986         info->link_down =
 987             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 988         free(tmp_link);
 989       } else {
 990         info->link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
 991         info->link_down = info->link_up;
 992       }
 993       surf_routing_cluster_add_link(host_id, info);
 994
 995       xbt_free(link_id);
 996       xbt_free(host_id);
 997     }
 998
 999     xbt_dynar_free(&radical_ends);
1000   }
1001   xbt_dynar_free(&radical_elements);
1002
1003   // 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
1004   XBT_DEBUG(" ");
1005   XBT_DEBUG("<router id=\"%s\"/>", struct_cluster->router_id);
1006   s_sg_platf_router_cbarg_t router;
1007   char *newid = NULL;
1008   memset(&router, 0, sizeof(router));
1009   router.id = struct_cluster->router_id;
1010   router.coord = "";
1011   if (!router.id || !strcmp(router.id, ""))
1012     router.id = newid =
1013         bprintf("%s%s_router%s", struct_cluster->prefix, struct_cluster->id,
1014                 struct_cluster->suffix);
1015   sg_platf_new_router(&router);
1016   free(newid);
1017
1018   //Make the backbone
1019   if ((struct_cluster->bb_bw != 0) && (struct_cluster->bb_lat != 0)) {
1020     char *link_backbone = bprintf("%s_backbone", struct_cluster->id);
1021     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
1022               struct_cluster->bb_bw, struct_cluster->bb_lat);
1023
1024     memset(&link, 0, sizeof(link));
1025     link.id = link_backbone;
1026     link.bandwidth = struct_cluster->bb_bw;
1027     link.latency = struct_cluster->bb_lat;
1028     link.state = SURF_RESOURCE_ON;
1029
1030     switch (struct_cluster->bb_sharing_policy) {
1031     case A_surfxml_cluster_bb_sharing_policy_FATPIPE:
1032       link.policy = SURF_LINK_FATPIPE;
1033       break;
1034     case A_surfxml_cluster_bb_sharing_policy_SHARED:
1035       link.policy = SURF_LINK_SHARED;
1036       break;
1037     default:
1038       surf_parse_error(bprintf
1039                        ("Invalid bb sharing policy in cluster %s",
1040                         struct_cluster->id));
1041       break;
1042     }
1043
1044     sg_platf_new_link(&link);
1045
1046     surf_parsing_link_up_down_t info =
1047         xbt_new0(s_surf_parsing_link_up_down_t, 1);
1048     info->link_up =
1049         xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL);
1050     info->link_down = info->link_up;
1051     surf_routing_cluster_add_link(struct_cluster->id, info);
1052
1053     free(link_backbone);
1054   }
1055
1056   XBT_DEBUG(" ");
1057
1058   char *new_suffix = xbt_strdup("");
1059
1060   radical_elements = xbt_str_split(struct_cluster->suffix, ".");
1061   xbt_dynar_foreach(radical_elements, iter, groups) {
1062     if (strcmp(groups, "")) {
1063       char *old_suffix = new_suffix;
1064       new_suffix = bprintf("%s\\.%s", old_suffix, groups);
1065       free(old_suffix);
1066     }
1067   }
1068
1069   xbt_dynar_free(&radical_elements);
1070   xbt_free(new_suffix);
1071
1072   if (strcmp(struct_cluster->availability_trace, "")
1073       || strcmp(struct_cluster->state_trace, ""))
1074     xbt_dict_free(&patterns);
1075
1076   XBT_DEBUG("</AS>");
1077   sg_platf_new_AS_end();
1078   XBT_DEBUG(" ");
1079 }
1080
1081 /*
1082  * This function take a string and replace parameters from patterns dict.
1083  * It returns the new value.
1084  */
1085 static char *replace_random_parameter(char *string)
1086 {
1087   char *test_string = NULL;
1088
1089   if (xbt_dict_size(random_value) == 0)
1090     return string;
1091
1092   string = xbt_str_varsubst(string, patterns);  // for patterns of cluster
1093   test_string = bprintf("${%s}", string);
1094   test_string = xbt_str_varsubst(test_string, random_value);    //Add ${xxxxx} for random Generator
1095
1096   if (strcmp(test_string, "")) {        //if not empty, keep this value.
1097     xbt_free(string);
1098     string = test_string;
1099   }                             //In other case take old value (without ${})
1100   else
1101     free(test_string);
1102   return string;
1103 }
1104
1105 static void routing_parse_postparse(void)
1106 {
1107   xbt_dict_free(&random_value);
1108   xbt_dict_free(&patterns);
1109 }
1110
1111 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1112 {
1113   static int AX_ptr = 0;
1114   char *host_id = NULL;
1115   char *router_id, *link_router, *link_backbone, *link_id_up, *link_id_down;
1116
1117   static unsigned int surfxml_buffer_stack_stack_ptr = 1;
1118   static unsigned int surfxml_buffer_stack_stack[1024];
1119
1120   surfxml_buffer_stack_stack[0] = 0;
1121
1122   surfxml_bufferstack_push(1);
1123
1124   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Full\">", peer->id);
1125   sg_platf_new_AS_begin(peer->id, "Full");
1126
1127   XBT_DEBUG(" ");
1128   host_id = HOST_PEER(peer->id);
1129   router_id = ROUTER_PEER(peer->id);
1130   link_id_up = LINK_UP_PEER(peer->id);
1131   link_id_down = LINK_DOWN_PEER(peer->id);
1132
1133   link_router = bprintf("%s_link_router", peer->id);
1134   link_backbone = bprintf("%s_backbone", peer->id);
1135
1136   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1137   s_sg_platf_host_cbarg_t host;
1138   memset(&host, 0, sizeof(host));
1139   host.initial_state = SURF_RESOURCE_ON;
1140   host.id = host_id;
1141   host.power_peak = peer->power;
1142   host.power_scale = 1.0;
1143   host.power_trace = peer->availability_trace;
1144   host.state_trace = peer->state_trace;
1145   host.core_amount = 1;
1146   sg_platf_new_host(&host);
1147
1148
1149   XBT_DEBUG("<router id=\"%s\"\tcoordinates=\"%s\"/>", router_id, peer->coord);
1150   s_sg_platf_router_cbarg_t router;
1151   memset(&router, 0, sizeof(router));
1152   router.id = router_id;
1153   router.coord = peer->coord;
1154   sg_platf_new_router(&router);
1155
1156   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_up,
1157             peer->bw_in, peer->lat);
1158   s_sg_platf_link_cbarg_t link;
1159   memset(&link, 0, sizeof(link));
1160   link.state = SURF_RESOURCE_ON;
1161   link.policy = SURF_LINK_SHARED;
1162   link.id = link_id_up;
1163   link.bandwidth = peer->bw_in;
1164   link.latency = peer->lat;
1165   sg_platf_new_link(&link);
1166
1167   // FIXME: dealing with full duplex is not the role of this piece of code, I'd say [Mt]
1168   // Instead, it should be created fullduplex, and the models will do what's needed in this case
1169   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_down,
1170             peer->bw_out, peer->lat);
1171   link.id = link_id_down;
1172   sg_platf_new_link(&link);
1173
1174   XBT_DEBUG(" ");
1175
1176   // begin here
1177   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", host_id, router_id);
1178   XBT_DEBUG("symmetrical=\"NO\">");
1179   SURFXML_BUFFER_SET(route_src, host_id);
1180   SURFXML_BUFFER_SET(route_dst, router_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_up);
1185   SURFXML_BUFFER_SET(link_ctn_id, link_id_up);
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   //Opposite Route
1194   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", router_id, host_id);
1195   XBT_DEBUG("symmetrical=\"NO\">");
1196   SURFXML_BUFFER_SET(route_src, router_id);
1197   SURFXML_BUFFER_SET(route_dst, host_id);
1198   A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1199   SURFXML_START_TAG(route);
1200
1201   XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_down);
1202   SURFXML_BUFFER_SET(link_ctn_id, link_id_down);
1203   A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1204   SURFXML_START_TAG(link_ctn);
1205   SURFXML_END_TAG(link_ctn);
1206
1207   XBT_DEBUG("</route>");
1208   SURFXML_END_TAG(route);
1209
1210   XBT_DEBUG("</AS>");
1211   sg_platf_new_AS_end();
1212   XBT_DEBUG(" ");
1213
1214   //xbt_dynar_free(&tab_elements_num);
1215   free(host_id);
1216   free(router_id);
1217   free(link_router);
1218   free(link_backbone);
1219   free(link_id_up);
1220   free(link_id_down);
1221   surfxml_bufferstack_pop(1);
1222 }
1223
1224 static void routing_parse_Srandom(void)
1225 {
1226   double mean, std, min, max, seed;
1227   char *random_id = A_surfxml_random_id;
1228   char *random_radical = A_surfxml_random_radical;
1229   char *rd_name = NULL;
1230   char *rd_value;
1231   mean = surf_parse_get_double(A_surfxml_random_mean);
1232   std = surf_parse_get_double(A_surfxml_random_std_deviation);
1233   min = surf_parse_get_double(A_surfxml_random_min);
1234   max = surf_parse_get_double(A_surfxml_random_max);
1235   seed = surf_parse_get_double(A_surfxml_random_seed);
1236
1237   double res = 0;
1238   int i = 0;
1239   random_data_t random = xbt_new0(s_random_data_t, 1);
1240   char *tmpbuf;
1241
1242   xbt_dynar_t radical_elements;
1243   unsigned int iter;
1244   char *groups;
1245   int start, end;
1246   xbt_dynar_t radical_ends;
1247
1248   random->generator = A_surfxml_random_generator;
1249   random->seed = seed;
1250   random->min = min;
1251   random->max = max;
1252
1253   /* Check user stupidities */
1254   if (max < min)
1255     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1256   if (mean < min)
1257     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1258   if (mean > max)
1259     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1260
1261   /* normalize the mean and standard deviation before storing */
1262   random->mean = (mean - min) / (max - min);
1263   random->std = std / (max - min);
1264
1265   if (random->mean * (1 - random->mean) < random->std * random->std)
1266     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1267            random->mean, random->std);
1268
1269   XBT_DEBUG
1270       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1271        random_id, random->min, random->max, random->mean, random->std,
1272        random->generator, random->seed, random_radical);
1273
1274   if (xbt_dict_size(random_value) == 0)
1275     random_value = xbt_dict_new();
1276
1277   if (!strcmp(random_radical, "")) {
1278     res = random_generate(random);
1279     rd_value = bprintf("%f", res);
1280     xbt_dict_set(random_value, random_id, rd_value, free);
1281   } else {
1282     radical_elements = xbt_str_split(random_radical, ",");
1283     xbt_dynar_foreach(radical_elements, iter, groups) {
1284       radical_ends = xbt_str_split(groups, "-");
1285       switch (xbt_dynar_length(radical_ends)) {
1286       case 1:
1287         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1288                    "Custom Random '%s' already exists !", random_id);
1289         res = random_generate(random);
1290         tmpbuf =
1291             bprintf("%s%d", random_id,
1292                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1293         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), free);
1294         xbt_free(tmpbuf);
1295         break;
1296
1297       case 2:
1298         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1299         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1300         for (i = start; i <= end; i++) {
1301           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1302                      "Custom Random '%s' already exists !", bprintf("%s%d",
1303                                                                     random_id,
1304                                                                     i));
1305           res = random_generate(random);
1306           tmpbuf = bprintf("%s%d", random_id, i);
1307           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), free);
1308           xbt_free(tmpbuf);
1309         }
1310         break;
1311       default:
1312         XBT_INFO("Malformed radical");
1313         break;
1314       }
1315       res = random_generate(random);
1316       rd_name = bprintf("%s_router", random_id);
1317       rd_value = bprintf("%f", res);
1318       xbt_dict_set(random_value, rd_name, rd_value, free);
1319
1320       xbt_dynar_free(&radical_ends);
1321     }
1322     free(rd_name);
1323     xbt_dynar_free(&radical_elements);
1324   }
1325 }
1326
1327 void routing_register_callbacks()
1328 {
1329   sg_platf_host_add_cb(parse_S_host);
1330   sg_platf_router_add_cb(parse_S_router);
1331
1332   surfxml_add_callback(STag_surfxml_random_cb_list, &routing_parse_Srandom);
1333
1334   surfxml_add_callback(STag_surfxml_route_cb_list, &routing_parse_S_route);
1335   surfxml_add_callback(STag_surfxml_ASroute_cb_list, &routing_parse_S_ASroute);
1336   surfxml_add_callback(STag_surfxml_bypassRoute_cb_list,
1337                        &routing_parse_S_bypassRoute);
1338
1339   surfxml_add_callback(ETag_surfxml_link_ctn_cb_list, &routing_parse_link_ctn);
1340
1341   surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_parse_E_route);
1342   surfxml_add_callback(ETag_surfxml_ASroute_cb_list, &routing_parse_E_ASroute);
1343   surfxml_add_callback(ETag_surfxml_bypassRoute_cb_list,
1344                        &routing_parse_E_bypassRoute);
1345
1346   surfxml_add_callback(STag_surfxml_cluster_cb_list, &routing_parse_cluster);
1347
1348   sg_platf_peer_add_cb(routing_parse_peer);
1349   sg_platf_postparse_add_cb(routing_parse_postparse);
1350
1351 #ifdef HAVE_TRACING
1352   instr_routing_define_callbacks();
1353 #endif
1354 }