src/surf/surf_routing.c

   1 /* Copyright (c) 2009-2013. 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 "simgrid/platf_interface.h"    // platform creation API internal interface
   8 #include "simgrid/sg_config.h"
   9
  10 #include "surf_routing_private.h"
  11 #include "surf/surf_routing.h"
  12 #include "surf/surfxml_parse_values.h"
  13
  14 /**
  15  * @ingroup SURF_build_api
  16  * @brief A library containing all known workstations
  17  */
  18 xbt_lib_t host_lib;
  19
  20 int ROUTING_HOST_LEVEL;         //Routing level
  21 int SURF_CPU_LEVEL;             //Surf cpu level
  22 int SURF_WKS_LEVEL;             //Surf workstation level
  23 int SIMIX_HOST_LEVEL;           //Simix host level
  24 int SIMIX_STORAGE_LEVEL;        //Simix storage level
  25 int MSG_HOST_LEVEL;             //Msg host level
  26 int MSG_STORAGE_LEVEL;          //Msg storage level
  27 int SD_HOST_LEVEL;              //Simdag host level
  28 int SD_STORAGE_LEVEL;           //Simdag storage level
  29 int COORD_HOST_LEVEL=0;         //Coordinates level
  30 int NS3_HOST_LEVEL;             //host node for ns3
  31
  32 /**
  33  * @ingroup SURF_build_api
  34  * @brief A library containing all known links
  35  */
  36 xbt_lib_t link_lib;
  37 int SD_LINK_LEVEL;              //Simdag level
  38 int SURF_LINK_LEVEL;            //Surf level
  39 int NS3_LINK_LEVEL;             //link for ns3
  40
  41 xbt_lib_t as_router_lib;
  42 int ROUTING_ASR_LEVEL;          //Routing level
  43 int COORD_ASR_LEVEL;            //Coordinates level
  44 int NS3_ASR_LEVEL;              //host node for ns3
  45 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
  46
  47 static xbt_dict_t random_value = NULL;
  48
  49 /** @brief Retrieve a routing edge from its name
  50  *
  51  * Routing edges are either CPU/workstation and routers, whatever
  52  */
  53 sg_routing_edge_t sg_routing_edge_by_name_or_null(const char *name) {
  54     sg_routing_edge_t net_elm = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
  55     if(!net_elm) net_elm = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
  56   return net_elm;
  57 }
  58
  59 /* Global vars */
  60 routing_platf_t routing_platf = NULL;
  61 AS_t current_routing = NULL;
  62
  63 /* global parse functions */
  64 extern xbt_dynar_t mount_list;
  65
  66 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  67
  68 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  69 static void routing_parse_Srandom(void);        /* random bypass */
  70
  71 static void routing_parse_postparse(void);
  72
  73 /* this lines are only for replace use like index in the model table */
  74 typedef enum {
  75   SURF_MODEL_FULL = 0,
  76   SURF_MODEL_FLOYD,
  77   SURF_MODEL_DIJKSTRA,
  78   SURF_MODEL_DIJKSTRACACHE,
  79   SURF_MODEL_NONE,
  80   SURF_MODEL_VIVALDI,
  81   SURF_MODEL_CLUSTER
  82 } e_routing_types;
  83
  84 struct s_model_type routing_models[] = {
  85   {"Full",
  86    "Full routing data (fast, large memory requirements, fully expressive)",
  87    model_full_create, model_full_end},
  88   {"Floyd",
  89    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  90    model_floyd_create, model_floyd_end},
  91   {"Dijkstra",
  92    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
  93    model_dijkstra_create, model_dijkstra_both_end},
  94   {"DijkstraCache",
  95    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
  96    model_dijkstracache_create, model_dijkstra_both_end},
  97   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
  98    model_none_create,  NULL},
  99   {"Vivaldi", "Vivaldi routing",
 100    model_vivaldi_create, NULL},
 101   {"Cluster", "Cluster routing",
 102    model_cluster_create, NULL},
 103   {NULL, NULL, NULL, NULL}
 104 };
 105
 106 /**
 107  * \brief Add a "host_link" to the network element list
 108  */
 109 static void parse_S_host_link(sg_platf_host_link_cbarg_t host)
 110 {
 111   sg_routing_edge_t info = NULL;
 112   info = xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL);
 113   xbt_assert(info, "Host '%s' not found!",host->id);
 114   xbt_assert(current_routing->model_desc == &routing_models[SURF_MODEL_CLUSTER] ||
 115       current_routing->model_desc == &routing_models[SURF_MODEL_VIVALDI],
 116       "You have to be in model Cluster to use tag host_link!");
 117
 118   s_surf_parsing_link_up_down_t link_up_down;
 119   link_up_down.link_up = xbt_lib_get_or_null(link_lib, host->link_up, SURF_LINK_LEVEL);
 120   link_up_down.link_down = xbt_lib_get_or_null(link_lib, host->link_down, SURF_LINK_LEVEL);
 121   link_up_down.limiter_link = NULL;
 122   link_up_down.loopback_link = NULL;
 123
 124   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
 125   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
 126
 127   if(!current_routing->link_up_down_list)
 128     current_routing->link_up_down_list = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 129
 130   // If dynar is is greater than edge id and if the host_link is already defined
 131   if(xbt_dynar_length(current_routing->link_up_down_list) > info->id &&
 132       xbt_dynar_get_as(current_routing->link_up_down_list,info->id,void*))
 133     xbt_die("Host_link for '%s' is already defined!",host->id);
 134
 135   XBT_DEBUG("Push Host_link for host '%s' to position %d",info->name,info->id);
 136   xbt_dynar_set_as(current_routing->link_up_down_list,info->id,s_surf_parsing_link_up_down_t,link_up_down);
 137 }
 138
 139 /**
 140  * \brief Add a "host" to the network element list
 141  */
 142 static void parse_S_host(sg_platf_host_cbarg_t host)
 143 {
 144   sg_routing_edge_t info = NULL;
 145   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 146     current_routing->hierarchy = SURF_ROUTING_BASE;
 147   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
 148              "Reading a host, processing unit \"%s\" already exists", host->id);
 149
 150   info = xbt_new0(s_routing_edge_t, 1);
 151   info->rc_component = current_routing;
 152   info->rc_type = SURF_NETWORK_ELEMENT_HOST;
 153   info->name = xbt_strdup(host->id);
 154   info->id = current_routing->parse_PU(current_routing, (void *) info);
 155   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
 156   XBT_DEBUG("Having set name '%s' id '%d'",host->id,info->id);
 157
 158   if(mount_list){
 159     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 160     mount_list = NULL;
 161   }
 162
 163   if (host->coord && strcmp(host->coord, "")) {
 164     unsigned int cursor;
 165     char*str;
 166
 167     if (!COORD_HOST_LEVEL)
 168       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 169     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 170     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 171     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 172     xbt_dynar_foreach(ctn_str,cursor, str) {
 173       double val = atof(str);
 174       xbt_dynar_push(ctn,&val);
 175     }
 176     xbt_dynar_shrink(ctn, 0);
 177     xbt_dynar_free(&ctn_str);
 178     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
 179     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
 180   }
 181 }
 182
 183 /**
 184  * \brief Add a "router" to the network element list
 185  */
 186 static void parse_S_router(sg_platf_router_cbarg_t router)
 187 {
 188   sg_routing_edge_t info = NULL;
 189   if (current_routing->hierarchy == SURF_ROUTING_NULL)
 190     current_routing->hierarchy = SURF_ROUTING_BASE;
 191   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 192              "Reading a router, processing unit \"%s\" already exists",
 193              router->id);
 194
 195   info = xbt_new0(s_routing_edge_t, 1);
 196   info->rc_component = current_routing;
 197   info->rc_type = SURF_NETWORK_ELEMENT_ROUTER;
 198   info->name = xbt_strdup(router->id);
 199   info->id = current_routing->parse_PU(current_routing, (void *) info);
 200   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 201   XBT_DEBUG("Having set name '%s' id '%d'",router->id,info->id);
 202
 203   if (router->coord && strcmp(router->coord, "")) {
 204     unsigned int cursor;
 205     char*str;
 206
 207     if (!COORD_ASR_LEVEL)
 208       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 209     /* Pre-parse the host coordinates */
 210     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 211     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 212     xbt_dynar_foreach(ctn_str,cursor, str) {
 213       double val = atof(str);
 214       xbt_dynar_push(ctn,&val);
 215     }
 216     xbt_dynar_shrink(ctn, 0);
 217     xbt_dynar_free(&ctn_str);
 218     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 219     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 220   }
 221 }
 222
 223 /**
 224  * \brief Store the route by calling the set_route function of the current routing component
 225  */
 226 static void parse_E_route(sg_platf_route_cbarg_t route)
 227 {
 228   xbt_assert(current_routing->parse_route,
 229              "no defined method \"set_route\" in \"%s\"",
 230              current_routing->name);
 231
 232   current_routing->parse_route(current_routing, route);
 233 }
 234
 235 /**
 236  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 237  */
 238 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
 239 {
 240   xbt_assert(current_routing->parse_ASroute,
 241              "no defined method \"set_ASroute\" in \"%s\"",
 242              current_routing->name);
 243   current_routing->parse_ASroute(current_routing, ASroute);
 244 }
 245
 246 /**
 247  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 248  */
 249 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
 250 {
 251   xbt_assert(current_routing->parse_bypassroute,
 252              "Bypassing mechanism not implemented by routing '%s'",
 253              current_routing->name);
 254
 255   current_routing->parse_bypassroute(current_routing, route);
 256 }
 257
 258 /**
 259  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 260  */
 261 static void parse_E_bypassASroute(sg_platf_route_cbarg_t ASroute)
 262 {
 263   xbt_assert(current_routing->parse_bypassroute,
 264              "Bypassing mechanism not implemented by routing '%s'",
 265              current_routing->name);
 266   current_routing->parse_bypassroute(current_routing, ASroute);
 267 }
 268
 269 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
 270 {
 271   tmgr_trace_t tmgr_trace;
 272   if (!trace->file || strcmp(trace->file, "") != 0) {
 273     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 274   } else if (strcmp(trace->pc_data, "") == 0) {
 275     tmgr_trace = NULL;
 276   } else {
 277     tmgr_trace =
 278           tmgr_trace_new_from_string(trace->id, trace->pc_data,
 279                                      trace->periodicity);
 280   }
 281   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
 282 }
 283
 284 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
 285 {
 286   xbt_assert(xbt_dict_get_or_null
 287               (traces_set_list, trace_connect->trace),
 288               "Cannot connect trace %s to %s: trace unknown",
 289               trace_connect->trace,
 290               trace_connect->element);
 291
 292   switch (trace_connect->kind) {
 293   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
 294     xbt_dict_set(trace_connect_list_host_avail,
 295         trace_connect->trace,
 296         xbt_strdup(trace_connect->element), NULL);
 297     break;
 298   case SURF_TRACE_CONNECT_KIND_POWER:
 299     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
 300         xbt_strdup(trace_connect->element), NULL);
 301     break;
 302   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
 303     xbt_dict_set(trace_connect_list_link_avail,
 304         trace_connect->trace,
 305         xbt_strdup(trace_connect->element), NULL);
 306     break;
 307   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
 308     xbt_dict_set(trace_connect_list_bandwidth,
 309         trace_connect->trace,
 310         xbt_strdup(trace_connect->element), NULL);
 311     break;
 312   case SURF_TRACE_CONNECT_KIND_LATENCY:
 313     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
 314         xbt_strdup(trace_connect->element), NULL);
 315     break;
 316   default:
 317     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
 318         trace_connect->trace, trace_connect->element);
 319     break;
 320   }
 321 }
 322
 323 /**
 324  * \brief Make a new routing component to the platform
 325  *
 326  * Add a new autonomous system to the platform. Any elements (such as host,
 327  * router or sub-AS) added after this call and before the corresponding call
 328  * to sg_platf_new_AS_close() will be added to this AS.
 329  *
 330  * Once this function was called, the configuration concerning the used
 331  * models cannot be changed anymore.
 332  *
 333  * @param AS_id name of this autonomous system. Must be unique in the platform
 334  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 335  */
 336 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
 337 {
 338   XBT_DEBUG("routing_AS_begin");
 339   AS_t new_as;
 340   routing_model_description_t model = NULL;
 341
 342   xbt_assert(!xbt_lib_get_or_null
 343              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 344              "The AS \"%s\" already exists", AS->id);
 345
 346   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
 347                             * controlling the level of configuration to prevent
 348                             * any further config */
 349
 350   /* search the routing model */
 351   switch(AS->routing){
 352     case A_surfxml_AS_routing_Cluster:       model = &routing_models[SURF_MODEL_CLUSTER];break;
 353     case A_surfxml_AS_routing_Dijkstra:      model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 354     case A_surfxml_AS_routing_DijkstraCache: model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 355     case A_surfxml_AS_routing_Floyd:         model = &routing_models[SURF_MODEL_FLOYD];break;
 356     case A_surfxml_AS_routing_Full:          model = &routing_models[SURF_MODEL_FULL];break;
 357     case A_surfxml_AS_routing_None:          model = &routing_models[SURF_MODEL_NONE];break;
 358     case A_surfxml_AS_routing_Vivaldi:       model = &routing_models[SURF_MODEL_VIVALDI];break;
 359     default: xbt_die("Not a valid model!!!");
 360     break;
 361   }
 362
 363   /* make a new routing component */
 364   new_as = (AS_t) model->create();
 365   new_as->model_desc = model;
 366   new_as->hierarchy = SURF_ROUTING_NULL;
 367   new_as->name = xbt_strdup(AS->id);
 368
 369   sg_routing_edge_t info = NULL;
 370   info = xbt_new0(s_routing_edge_t, 1);
 371
 372   if (current_routing == NULL && routing_platf->root == NULL) {
 373
 374     /* it is the first one */
 375     new_as->routing_father = NULL;
 376     routing_platf->root = new_as;
 377     info->id = -1;
 378   } else if (current_routing != NULL && routing_platf->root != NULL) {
 379
 380     xbt_assert(!xbt_dict_get_or_null
 381                (current_routing->routing_sons, AS->id),
 382                "The AS \"%s\" already exists", AS->id);
 383     /* it is a part of the tree */
 384     new_as->routing_father = current_routing;
 385     /* set the father behavior */
 386     if (current_routing->hierarchy == SURF_ROUTING_NULL)
 387       current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
 388     /* add to the sons dictionary */
 389     xbt_dict_set(current_routing->routing_sons, AS->id,
 390                  (void *) new_as, NULL);
 391     /* add to the father element list */
 392     info->id = current_routing->parse_AS(current_routing, (void *) info);
 393   } else {
 394     THROWF(arg_error, 0, "All defined components must be belong to a AS");
 395   }
 396
 397   info->rc_component = new_as->routing_father;
 398   info->rc_type = SURF_NETWORK_ELEMENT_AS;
 399   info->name = new_as->name;
 400
 401   xbt_lib_set(as_router_lib, info->name, ROUTING_ASR_LEVEL,
 402               (void *) info);
 403   XBT_DEBUG("Having set name '%s' id '%d'",new_as->name,info->id);
 404
 405   /* set the new current component of the tree */
 406   current_routing = new_as;
 407   current_routing->net_elem = info;
 408
 409 }
 410
 411 /**
 412  * \brief Specify that the current description of AS is finished
 413  *
 414  * Once you've declared all the content of your AS, you have to close
 415  * it with this call. Your AS is not usable until you call this function.
 416  *
 417  * @fixme: this call is not as robust as wanted: bad things WILL happen
 418  * if you call it twice for the same AS, or if you forget calling it, or
 419  * even if you add stuff to a closed AS
 420  *
 421  */
 422 void routing_AS_end(sg_platf_AS_cbarg_t AS)
 423 {
 424
 425   if (current_routing == NULL) {
 426     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 427   } else {
 428     if (current_routing->model_desc->end)
 429       current_routing->model_desc->end(current_routing);
 430     current_routing = current_routing->routing_father;
 431   }
 432 }
 433
 434 /* Aux Business methods */
 435
 436 /**
 437  * \brief Get the AS father and the first elements of the chain
 438  *
 439  * \param src the source host name
 440  * \param dst the destination host name
 441  *
 442  * Get the common father of the to processing units, and the first different
 443  * father in the chain
 444  */
 445 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
 446                             AS_t * res_father,
 447                             AS_t * res_src,
 448                             AS_t * res_dst)
 449 {
 450   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 451 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 452   AS_t src_as, dst_as;
 453   AS_t path_src[ELEMENTS_FATHER_MAXDEPTH];
 454   AS_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
 455   int index_src = 0;
 456   int index_dst = 0;
 457   AS_t current;
 458   AS_t current_src;
 459   AS_t current_dst;
 460   AS_t father;
 461
 462   /* (1) find the as where the src and dst are located */
 463   sg_routing_edge_t src_data = src;
 464   sg_routing_edge_t dst_data = dst;
 465   src_as = src_data->rc_component;
 466   dst_as = dst_data->rc_component;
 467 #ifndef NDEBUG
 468   char* src_name = src_data->name;
 469   char* dst_name = dst_data->name;
 470 #endif
 471
 472   xbt_assert(src_as && dst_as,
 473              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 474
 475   /* (2) find the path to the root routing component */
 476   for (current = src_as; current != NULL; current = current->routing_father) {
 477     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 478       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 479     path_src[index_src++] = current;
 480   }
 481   for (current = dst_as; current != NULL; current = current->routing_father) {
 482     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 483       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 484     path_dst[index_dst++] = current;
 485   }
 486
 487   /* (3) find the common father */
 488   do {
 489     current_src = path_src[--index_src];
 490     current_dst = path_dst[--index_dst];
 491   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 492
 493   /* (4) they are not in the same routing component, make the path */
 494   if (current_src == current_dst)
 495     father = current_src;
 496   else
 497     father = path_src[index_src + 1];
 498
 499   /* (5) result generation */
 500   *res_father = father;         /* first the common father of src and dst */
 501   *res_src = current_src;       /* second the first different father of src */
 502   *res_dst = current_dst;       /* three  the first different father of dst */
 503
 504 #undef ELEMENTS_FATHER_MAXDEPTH
 505 }
 506
 507 /* Global Business methods */
 508
 509 /**
 510  * \brief Recursive function for get_route_latency
 511  *
 512  * \param src the source host name
 513  * \param dst the destination host name
 514  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 515  * \param *latency the latency, if needed
 516  *
 517  * This function is called by "get_route" and "get_latency". It allows to walk
 518  * recursively through the ASes tree.
 519  */
 520 static void _get_route_and_latency(sg_routing_edge_t src, sg_routing_edge_t dst,
 521                                    xbt_dynar_t * links, double *latency)
 522 {
 523   s_sg_platf_route_cbarg_t route;
 524   memset(&route,0,sizeof(route));
 525
 526   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 527   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->name, dst->name);
 528
 529   /* Find how src and dst are interconnected */
 530   AS_t common_father, src_father, dst_father;
 531   elements_father(src, dst, &common_father, &src_father, &dst_father);
 532   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 533       common_father->name,src_father->name,dst_father->name);
 534
 535   /* Check whether a direct bypass is defined */
 536   sg_platf_route_cbarg_t e_route_bypass = NULL;
 537   if (common_father->get_bypass_route)
 538     e_route_bypass = common_father->get_bypass_route(common_father, src, dst, latency);
 539
 540   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 541   if (e_route_bypass) {
 542     xbt_dynar_merge(links, &e_route_bypass->link_list);
 543     generic_free_route(e_route_bypass);
 544     return;
 545   }
 546
 547   /* If src and dst are in the same AS, life is good */
 548   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 549     route.link_list = *links;
 550     common_father->get_route_and_latency(common_father, src, dst, &route,latency);
 551     // if vivaldi latency+=vivaldi(src,dst)
 552     return;
 553   }
 554
 555   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 556
 557   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 558   // Find the net_card corresponding to father
 559   sg_routing_edge_t src_father_net_elm = src_father->net_elem;
 560   sg_routing_edge_t dst_father_net_elm = dst_father->net_elem;
 561
 562   common_father->get_route_and_latency(common_father,
 563                                        src_father_net_elm, dst_father_net_elm,
 564                                        &route, latency);
 565
 566   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
 567       "bad gateways for route from \"%s\" to \"%s\"", src->name, dst->name);
 568
 569   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
 570   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
 571
 572   /* If source gateway is not our source, we have to recursively find our way up to this point */
 573   if (src != src_gateway_net_elm)
 574     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 575   xbt_dynar_merge(links, &route.link_list);
 576
 577   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 578   if (dst_gateway_net_elm != dst)
 579     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 580
 581   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
 582 }
 583
 584 /**
 585  * \brief Find a route between hosts
 586  *
 587  * \param src the network_element_t for src host
 588  * \param dst the network_element_t for dst host
 589  * \param route where to store the list of links.
 590  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 591  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 592  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 593  * \pre route!=NULL
 594  *
 595  * walk through the routing components tree and find a route between hosts
 596  * by calling the differents "get_route" functions in each routing component.
 597  */
 598 void routing_get_route_and_latency(sg_routing_edge_t src,
 599                                    sg_routing_edge_t dst,
 600                                    xbt_dynar_t * route, double *latency)
 601 {
 602   XBT_DEBUG("routing_get_route_and_latency from %s to %s",src->name,dst->name);
 603   if (!*route) {
 604     xbt_dynar_reset(routing_platf->last_route);
 605     *route = routing_platf->last_route;
 606   }
 607
 608   _get_route_and_latency(src, dst, route, latency);
 609
 610   xbt_assert(!latency || *latency >= 0.0,
 611              "negative latency on route between \"%s\" and \"%s\"", src->name, dst->name);
 612 }
 613
 614 static xbt_dynar_t recursive_get_onelink_routes(AS_t rc)
 615 {
 616   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
 617
 618   //adding my one link routes
 619   xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
 620   if (onelink_mine)
 621     xbt_dynar_merge(&ret,&onelink_mine);
 622
 623   //recursing
 624   char *key;
 625   xbt_dict_cursor_t cursor = NULL;
 626   AS_t rc_child;
 627   xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
 628     xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
 629     if (onelink_child)
 630       xbt_dynar_merge(&ret,&onelink_child);
 631   }
 632   return ret;
 633 }
 634
 635 static xbt_dynar_t get_onelink_routes(void)
 636 {
 637   return recursive_get_onelink_routes(routing_platf->root);
 638 }
 639
 640 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 641 {
 642   sg_routing_edge_t rc = sg_routing_edge_by_name_or_null(name);
 643   if (rc)
 644     return rc->rc_type;
 645
 646   return SURF_NETWORK_ELEMENT_NULL;
 647 }
 648
 649 /**
 650  * \brief Generic method: create the global routing schema
 651  *
 652  * Make a global routing structure and set all the parsing functions.
 653  */
 654 void routing_model_create( void *loopback)
 655 {
 656   /* config the uniq global routing */
 657   routing_platf = xbt_new0(s_routing_platf_t, 1);
 658   routing_platf->root = NULL;
 659   routing_platf->get_onelink_routes = get_onelink_routes;
 660   routing_platf->loopback = loopback;
 661   routing_platf->last_route = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 662   /* no current routing at moment */
 663   current_routing = NULL;
 664 }
 665
 666
 667 /* ************************************************** */
 668 /* ********** PATERN FOR NEW ROUTING **************** */
 669
 670 /* The minimal configuration of a new routing model need the next functions,
 671  * also you need to set at the start of the file, the new model in the model
 672  * list. Remember keep the null ending of the list.
 673  */
 674 /*** Routing model structure ***/
 675 // typedef struct {
 676 //   s_routing_component_t generic_routing;
 677 //   /* things that your routing model need */
 678 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 679
 680 /*** Parse routing model functions ***/
 681 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 682 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 683 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 684 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 685 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 686
 687 /*** Business methods ***/
 688 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 689 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 690 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 691
 692 /*** Creation routing model functions ***/
 693 // static void* model_NEW_create(void) {
 694 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 695 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 696 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 697 //   new_component->generic_routing.set_route = model_NEW_set_route;
 698 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 699 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 700 //   new_component->generic_routing.get_route = NEW_get_route;
 701 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 702 //   new_component->generic_routing.finalize = NEW_finalize;
 703 //   /* initialization of internal structures */
 704 //   return new_component;
 705 // } /* mandatory */
 706 // static void  model_NEW_load(void) {}   /* mandatory */
 707 // static void  model_NEW_unload(void) {} /* mandatory */
 708 // static void  model_NEW_end(void) {}    /* mandatory */
 709
 710 /* ************************************************************************** */
 711 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 712
 713 void routing_cluster_add_backbone(void* bb) {
 714   xbt_assert(current_routing->model_desc == &routing_models[SURF_MODEL_CLUSTER],
 715         "You have to be in model Cluster to use tag backbone!");
 716   xbt_assert(!((as_cluster_t)current_routing)->backbone,"The backbone link is already defined!");
 717   ((as_cluster_t)current_routing)->backbone = bb;
 718   XBT_DEBUG("Add a backbone to AS '%s'",current_routing->name);
 719 }
 720
 721 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 722 {
 723   int start, end, i;
 724   char *groups , *host_id , *link_id = NULL;
 725   unsigned int iter;
 726   xbt_dynar_t radical_elements;
 727   xbt_dynar_t radical_ends;
 728
 729   //Make all hosts
 730   radical_elements = xbt_str_split(cabinet->radical, ",");
 731   xbt_dynar_foreach(radical_elements, iter, groups) {
 732
 733     radical_ends = xbt_str_split(groups, "-");
 734     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 735
 736     switch (xbt_dynar_length(radical_ends)) {
 737     case 1:
 738       end = start;
 739       break;
 740     case 2:
 741       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 742       break;
 743     default:
 744       surf_parse_error("Malformed radical");
 745       break;
 746     }
 747     s_sg_platf_host_cbarg_t host;
 748     memset(&host, 0, sizeof(host));
 749     host.initial_state = SURF_RESOURCE_ON;
 750     host.pstate = 0;
 751     host.power_scale = 1.0;
 752     host.core_amount = 1;
 753
 754     s_sg_platf_link_cbarg_t link;
 755     memset(&link, 0, sizeof(link));
 756     link.state = SURF_RESOURCE_ON;
 757     link.policy = SURF_LINK_FULLDUPLEX;
 758     link.latency = cabinet->lat;
 759     link.bandwidth = cabinet->bw;
 760
 761     s_sg_platf_host_link_cbarg_t host_link;
 762     memset(&host_link, 0, sizeof(host_link));
 763
 764     for (i = start; i <= end; i++) {
 765       host_id = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 766       link_id = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 767       host.id = host_id;
 768       link.id = link_id;
 769       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 770       xbt_dynar_push(power_state_list,&cabinet->power);
 771       host.power_peak = power_state_list;
 772       sg_platf_new_host(&host);
 773       sg_platf_new_link(&link);
 774
 775       char* link_up = bprintf("%s_UP",link_id);
 776       char* link_down = bprintf("%s_DOWN",link_id);
 777       host_link.id = host_id;
 778       host_link.link_up = link_up;
 779       host_link.link_down= link_down;
 780       sg_platf_new_host_link(&host_link);
 781
 782       free(host_id);
 783       free(link_id);
 784       free(link_up);
 785       free(link_down);
 786     }
 787
 788     xbt_dynar_free(&radical_ends);
 789   }
 790   xbt_dynar_free(&radical_elements);
 791 }
 792
 793 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
 794 {
 795   char *host_id, *groups, *link_id = NULL;
 796   xbt_dict_t patterns = NULL;
 797
 798   s_sg_platf_host_cbarg_t host;
 799   s_sg_platf_link_cbarg_t link;
 800
 801   unsigned int iter;
 802   int start, end, i;
 803   xbt_dynar_t radical_elements;
 804   xbt_dynar_t radical_ends;
 805
 806   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 807       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 808     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 809     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 810     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 811     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 812   }
 813
 814   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 815   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 816   AS.id = cluster->id;
 817   AS.routing = A_surfxml_AS_routing_Cluster;
 818   sg_platf_new_AS_begin(&AS);
 819
 820   current_routing->link_up_down_list
 821             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 822
 823   //Make all hosts
 824   radical_elements = xbt_str_split(cluster->radical, ",");
 825   xbt_dynar_foreach(radical_elements, iter, groups) {
 826
 827     radical_ends = xbt_str_split(groups, "-");
 828     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 829
 830     switch (xbt_dynar_length(radical_ends)) {
 831     case 1:
 832       end = start;
 833       break;
 834     case 2:
 835       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 836       break;
 837     default:
 838       surf_parse_error("Malformed radical");
 839       break;
 840     }
 841     for (i = start; i <= end; i++) {
 842       host_id =
 843           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 844       link_id = bprintf("%s_link_%d", cluster->id, i);
 845
 846       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
 847
 848       memset(&host, 0, sizeof(host));
 849       host.id = host_id;
 850       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 851         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 852         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 853         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 854         host.power_trace = tmgr_trace_new_from_file(avail_file);
 855         xbt_free(avail_file);
 856       } else {
 857         XBT_DEBUG("\tavailability_file=\"\"");
 858       }
 859
 860       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 861         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 862         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 863         host.state_trace = tmgr_trace_new_from_file(avail_file);
 864         xbt_free(avail_file);
 865       } else {
 866         XBT_DEBUG("\tstate_file=\"\"");
 867       }
 868
 869       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 870       xbt_dynar_push(power_state_list,&cluster->power);
 871       host.power_peak = power_state_list;
 872       host.pstate = 0;
 873
 874       //host.power_peak = cluster->power;
 875       host.power_scale = 1.0;
 876       host.core_amount = cluster->core_amount;
 877       host.initial_state = SURF_RESOURCE_ON;
 878       host.coord = "";
 879       sg_platf_new_host(&host);
 880       XBT_DEBUG("</host>");
 881
 882       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 883                 cluster->bw, cluster->lat);
 884
 885       memset(&link, 0, sizeof(link));
 886       link.id = link_id;
 887       link.bandwidth = cluster->bw;
 888       link.latency = cluster->lat;
 889       link.state = SURF_RESOURCE_ON;
 890       link.policy = cluster->sharing_policy;
 891       sg_platf_new_link(&link);
 892
 893       s_surf_parsing_link_up_down_t info;
 894
 895       if (link.policy == SURF_LINK_FULLDUPLEX) {
 896         char *tmp_link = bprintf("%s_UP", link_id);
 897         info.link_up =
 898             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 899         free(tmp_link);
 900         tmp_link = bprintf("%s_DOWN", link_id);
 901         info.link_down =
 902             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 903         free(tmp_link);
 904       } else {
 905         info.link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
 906         info.link_down = info.link_up;
 907       }
 908
 909       if(cluster->limiter_link!=0){
 910         char *tmp_link = bprintf("%s_limiter", link_id);
 911         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 912                 cluster->limiter_link);
 913
 914
 915         memset(&link, 0, sizeof(link));
 916         link.id = tmp_link;
 917         link.bandwidth = cluster->limiter_link;
 918         link.latency = 0;
 919         link.state = SURF_RESOURCE_ON;
 920         link.policy = SURF_LINK_SHARED;
 921         sg_platf_new_link(&link);
 922          info.limiter_link =
 923             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 924         free(tmp_link);
 925       }else{
 926         info.limiter_link =NULL;
 927       }
 928
 929       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 930         char *tmp_link = bprintf("%s_loopback", link_id);
 931         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 932                 cluster->limiter_link);
 933
 934
 935         memset(&link, 0, sizeof(link));
 936         link.id = tmp_link;
 937         link.bandwidth = cluster->loopback_bw;
 938         link.latency = cluster->loopback_lat;
 939         link.state = SURF_RESOURCE_ON;
 940         link.policy = SURF_LINK_FATPIPE;
 941         sg_platf_new_link(&link);
 942          info.loopback_link =
 943             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 944         free(tmp_link);
 945       }else{
 946         info.loopback_link =NULL;
 947       }
 948
 949       xbt_dynar_push(current_routing->link_up_down_list,&info);
 950       xbt_free(link_id);
 951       xbt_free(host_id);
 952     }
 953
 954     xbt_dynar_free(&radical_ends);
 955   }
 956   xbt_dynar_free(&radical_elements);
 957
 958   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 959   // and it's very useful to connect clusters together
 960   XBT_DEBUG(" ");
 961   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 962   char *newid = NULL;
 963   s_sg_platf_router_cbarg_t router;
 964   memset(&router, 0, sizeof(router));
 965   router.id = cluster->router_id;
 966   router.coord = "";
 967   if (!router.id || !strcmp(router.id, ""))
 968     router.id = newid =
 969         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
 970                 cluster->suffix);
 971   sg_platf_new_router(&router);
 972   ((as_cluster_t)current_routing)->router = xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 973   free(newid);
 974
 975   //Make the backbone
 976   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 977     char *link_backbone = bprintf("%s_backbone", cluster->id);
 978     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
 979               cluster->bb_bw, cluster->bb_lat);
 980
 981     memset(&link, 0, sizeof(link));
 982     link.id = link_backbone;
 983     link.bandwidth = cluster->bb_bw;
 984     link.latency = cluster->bb_lat;
 985     link.state = SURF_RESOURCE_ON;
 986     link.policy = cluster->bb_sharing_policy;
 987
 988     sg_platf_new_link(&link);
 989
 990     routing_cluster_add_backbone(xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
 991
 992     free(link_backbone);
 993   }
 994
 995   XBT_DEBUG("</AS>");
 996   sg_platf_new_AS_end();
 997   XBT_DEBUG(" ");
 998   xbt_dict_free(&patterns); // no op if it were never set
 999 }
1000
1001 static void routing_parse_postparse(void) {
1002   xbt_dict_free(&random_value);
1003 }
1004
1005 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1006 {
1007   char *host_id = NULL;
1008   char *link_id = NULL;
1009   char *router_id = NULL;
1010
1011   XBT_DEBUG(" ");
1012   host_id = HOST_PEER(peer->id);
1013   link_id = LINK_PEER(peer->id);
1014   router_id = ROUTER_PEER(peer->id);
1015
1016   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1017   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1018   AS.id = peer->id;
1019   AS.routing = A_surfxml_AS_routing_Cluster;
1020   sg_platf_new_AS_begin(&AS);
1021
1022   current_routing->link_up_down_list
1023             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1024
1025   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1026   s_sg_platf_host_cbarg_t host;
1027   memset(&host, 0, sizeof(host));
1028   host.initial_state = SURF_RESOURCE_ON;
1029   host.id = host_id;
1030
1031   xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
1032   xbt_dynar_push(power_state_list,&peer->power);
1033   host.power_peak = power_state_list;
1034   host.pstate = 0;
1035   //host.power_peak = peer->power;
1036   host.power_scale = 1.0;
1037   host.power_trace = peer->availability_trace;
1038   host.state_trace = peer->state_trace;
1039   host.core_amount = 1;
1040   sg_platf_new_host(&host);
1041
1042   s_sg_platf_link_cbarg_t link;
1043   memset(&link, 0, sizeof(link));
1044   link.state = SURF_RESOURCE_ON;
1045   link.policy = SURF_LINK_SHARED;
1046   link.latency = peer->lat;
1047
1048   char* link_up = bprintf("%s_UP",link_id);
1049   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1050             peer->bw_out, peer->lat);
1051   link.id = link_up;
1052   link.bandwidth = peer->bw_out;
1053   sg_platf_new_link(&link);
1054
1055   char* link_down = bprintf("%s_DOWN",link_id);
1056   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1057             peer->bw_in, peer->lat);
1058   link.id = link_down;
1059   link.bandwidth = peer->bw_in;
1060   sg_platf_new_link(&link);
1061
1062   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1063   s_sg_platf_host_link_cbarg_t host_link;
1064   memset(&host_link, 0, sizeof(host_link));
1065   host_link.id = host_id;
1066   host_link.link_up = link_up;
1067   host_link.link_down= link_down;
1068   sg_platf_new_host_link(&host_link);
1069
1070   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1071   s_sg_platf_router_cbarg_t router;
1072   memset(&router, 0, sizeof(router));
1073   router.id = router_id;
1074   router.coord = peer->coord;
1075   sg_platf_new_router(&router);
1076   ((as_cluster_t)current_routing)->router = xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
1077
1078   XBT_DEBUG("</AS>");
1079   sg_platf_new_AS_end();
1080   XBT_DEBUG(" ");
1081
1082   //xbt_dynar_free(&tab_elements_num);
1083   free(router_id);
1084   free(host_id);
1085   free(link_id);
1086   free(link_up);
1087   free(link_down);
1088 }
1089
1090 static void routing_parse_Srandom(void)
1091 {
1092   double mean, std, min, max, seed;
1093   char *random_id = A_surfxml_random_id;
1094   char *random_radical = A_surfxml_random_radical;
1095   char *rd_name = NULL;
1096   char *rd_value;
1097   mean = surf_parse_get_double(A_surfxml_random_mean);
1098   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1099   min = surf_parse_get_double(A_surfxml_random_min);
1100   max = surf_parse_get_double(A_surfxml_random_max);
1101   seed = surf_parse_get_double(A_surfxml_random_seed);
1102
1103   double res = 0;
1104   int i = 0;
1105   random_data_t random = xbt_new0(s_random_data_t, 1);
1106   char *tmpbuf;
1107
1108   xbt_dynar_t radical_elements;
1109   unsigned int iter;
1110   char *groups;
1111   int start, end;
1112   xbt_dynar_t radical_ends;
1113
1114   switch (A_surfxml_random_generator) {
1115   case AU_surfxml_random_generator:
1116   case A_surfxml_random_generator_NONE:
1117     random->generator = NONE;
1118     break;
1119   case A_surfxml_random_generator_DRAND48:
1120     random->generator = DRAND48;
1121     break;
1122   case A_surfxml_random_generator_RAND:
1123     random->generator = RAND;
1124     break;
1125   case A_surfxml_random_generator_RNGSTREAM:
1126     random->generator = RNGSTREAM;
1127     break;
1128   default:
1129     surf_parse_error("Invalid random generator");
1130     break;
1131   }
1132   random->seed = seed;
1133   random->min = min;
1134   random->max = max;
1135
1136   /* Check user stupidities */
1137   if (max < min)
1138     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1139   if (mean < min)
1140     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1141   if (mean > max)
1142     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1143
1144   /* normalize the mean and standard deviation before storing */
1145   random->mean = (mean - min) / (max - min);
1146   random->std = std / (max - min);
1147
1148   if (random->mean * (1 - random->mean) < random->std * random->std)
1149     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1150            random->mean, random->std);
1151
1152   XBT_DEBUG
1153       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1154        random_id, random->min, random->max, random->mean, random->std,
1155        (int)random->generator, random->seed, random_radical);
1156
1157   if (!random_value)
1158     random_value = xbt_dict_new_homogeneous(free);
1159
1160   if (!strcmp(random_radical, "")) {
1161     res = random_generate(random);
1162     rd_value = bprintf("%f", res);
1163     xbt_dict_set(random_value, random_id, rd_value, NULL);
1164   } else {
1165     radical_elements = xbt_str_split(random_radical, ",");
1166     xbt_dynar_foreach(radical_elements, iter, groups) {
1167       radical_ends = xbt_str_split(groups, "-");
1168       switch (xbt_dynar_length(radical_ends)) {
1169       case 1:
1170         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1171                    "Custom Random '%s' already exists !", random_id);
1172         res = random_generate(random);
1173         tmpbuf =
1174             bprintf("%s%d", random_id,
1175                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1176         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1177         xbt_free(tmpbuf);
1178         break;
1179
1180       case 2:
1181         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1182         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1183         for (i = start; i <= end; i++) {
1184           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1185                      "Custom Random '%s' already exists !", bprintf("%s%d",
1186                                                                     random_id,
1187                                                                     i));
1188           res = random_generate(random);
1189           tmpbuf = bprintf("%s%d", random_id, i);
1190           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1191           xbt_free(tmpbuf);
1192         }
1193         break;
1194       default:
1195         XBT_CRITICAL("Malformed radical");
1196         break;
1197       }
1198       res = random_generate(random);
1199       rd_name = bprintf("%s_router", random_id);
1200       rd_value = bprintf("%f", res);
1201       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1202
1203       xbt_dynar_free(&radical_ends);
1204     }
1205     free(rd_name);
1206     xbt_dynar_free(&radical_elements);
1207   }
1208 }
1209
1210 void routing_register_callbacks()
1211 {
1212   sg_platf_host_add_cb(parse_S_host);
1213   sg_platf_router_add_cb(parse_S_router);
1214   sg_platf_host_link_add_cb(parse_S_host_link);
1215   sg_platf_route_add_cb(parse_E_route);
1216   sg_platf_ASroute_add_cb(parse_E_ASroute);
1217   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1218   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1219
1220   sg_platf_cluster_add_cb(routing_parse_cluster);
1221   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1222
1223   sg_platf_peer_add_cb(routing_parse_peer);
1224   sg_platf_postparse_add_cb(routing_parse_postparse);
1225
1226   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1227   sg_platf_AS_end_add_cb(routing_AS_end);
1228   sg_platf_AS_begin_add_cb(routing_AS_begin);
1229
1230   sg_platf_trace_add_cb(routing_parse_trace);
1231   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1232
1233 #ifdef HAVE_TRACING
1234   instr_routing_define_callbacks();
1235 #endif
1236 }
1237
1238 /**
1239  * \brief Recursive function for finalize
1240  *
1241  * \param rc the source host name
1242  *
1243  * This fuction is call by "finalize". It allow to finalize the
1244  * AS or routing components. It delete all the structures.
1245  */
1246 static void finalize_rec(AS_t as) {
1247   xbt_dict_cursor_t cursor = NULL;
1248   char *key;
1249   AS_t elem;
1250
1251   xbt_dict_foreach(as->routing_sons, cursor, key, elem) {
1252     finalize_rec(elem);
1253   }
1254
1255   as->finalize(as);
1256 }
1257
1258 /** \brief Frees all memory allocated by the routing module */
1259 void routing_exit(void) {
1260   if (!routing_platf)
1261     return;
1262   xbt_dynar_free(&routing_platf->last_route);
1263   finalize_rec(routing_platf->root);
1264   xbt_free(routing_platf);
1265 }
1266
1267 AS_t surf_AS_get_routing_root() {
1268   return routing_platf->root;
1269 }
1270
1271 const char *surf_AS_get_name(AS_t as) {
1272   return as->name;
1273 }
1274
1275 xbt_dict_t surf_AS_get_routing_sons(AS_t as) {
1276   return as->routing_sons;
1277 }
1278
1279 const char *surf_AS_get_model(AS_t as) {
1280   return as->model_desc->name;
1281 }
1282
1283 xbt_dynar_t surf_AS_get_hosts(AS_t as) {
1284   xbt_dynar_t elms = as->index_network_elm;
1285   sg_routing_edge_t relm;
1286   xbt_dictelm_t delm;
1287   int index;
1288   int count = xbt_dynar_length(elms);
1289   xbt_dynar_t res =  xbt_dynar_new(sizeof(xbt_dictelm_t), NULL);
1290   for (index = 0; index < count; index++) {
1291      relm = xbt_dynar_get_as(elms, index, sg_routing_edge_t);
1292      delm = xbt_lib_get_elm_or_null(host_lib, relm->name);
1293      if (delm!=NULL) {
1294        xbt_dynar_push(res, &delm);
1295      }
1296   }
1297   return res;
1298 }