src/surf/sg_platf.cpp

   1 /* Copyright (c) 2006-2014. 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 "xbt/misc.h"
   8 #include "xbt/log.h"
   9 #include "xbt/str.h"
  10 #include "xbt/dict.h"
  11 #include "xbt/RngStream.h"
  12 #include "simgrid/platf_interface.h"
  13 #include "surf/surf_routing.h"
  14 #include "surf/surf.h"
  15
  16 #include "src/simix/smx_private.h"
  17
  18 #include "cpu_interface.hpp"
  19 #include "host_interface.hpp"
  20
  21 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  22 xbt_dynar_t sg_platf_link_cb_list = NULL;   // of sg_platf_link_cb_t
  23 xbt_dynar_t sg_platf_cluster_cb_list = NULL; // of sg_platf_cluster_cb_t
  24 xbt_dynar_t sg_platf_cabinet_cb_list = NULL; // of sg_platf_cluster_cb_t
  25 xbt_dynar_t sg_platf_postparse_cb_list = NULL; // of void_f_void_t
  26
  27 xbt_dynar_t sg_platf_ASroute_cb_list = NULL; // of sg_platf_ASroute_cb_t
  28 xbt_dynar_t sg_platf_bypassRoute_cb_list = NULL; // of sg_platf_bypassRoute_cb_t
  29 xbt_dynar_t sg_platf_bypassASroute_cb_list = NULL; // of sg_platf_bypassASroute_cb_t
  30
  31 xbt_dynar_t sg_platf_trace_cb_list = NULL;
  32 xbt_dynar_t sg_platf_trace_connect_cb_list = NULL;
  33
  34 /* ***************************************** */
  35 /* TUTORIAL: New TAG                         */
  36
  37 xbt_dynar_t sg_platf_gpu_cb_list = NULL;
  38 /* ***************************************** */
  39
  40
  41 static int surf_parse_models_setup_already_called = 0;
  42
  43 /* one RngStream for the platform, to respect some statistic rules */
  44 static RngStream sg_platf_rng_stream = NULL;
  45
  46 /** Module management function: creates all internal data structures */
  47 void sg_platf_init(void) {
  48
  49   //FIXME : Ugly, but useful...
  50   if (sg_platf_gpu_cb_list)
  51     return; //Already initialized, so do nothing...
  52
  53   sg_platf_link_cb_list = xbt_dynar_new(sizeof(sg_platf_link_cb_t), NULL);
  54   sg_platf_cluster_cb_list = xbt_dynar_new(sizeof(sg_platf_cluster_cb_t), NULL);
  55   sg_platf_cabinet_cb_list = xbt_dynar_new(sizeof(sg_platf_cabinet_cb_t), NULL);
  56   sg_platf_postparse_cb_list = xbt_dynar_new(sizeof(sg_platf_link_cb_t),NULL);
  57
  58   sg_platf_ASroute_cb_list = xbt_dynar_new(sizeof(sg_platf_route_cb_t), NULL);
  59   sg_platf_bypassRoute_cb_list = xbt_dynar_new(sizeof(sg_platf_route_cb_t), NULL);
  60   sg_platf_bypassASroute_cb_list = xbt_dynar_new(sizeof(sg_platf_route_cb_t), NULL);
  61
  62   sg_platf_trace_cb_list = xbt_dynar_new(sizeof(sg_platf_trace_cb_t), NULL);
  63   sg_platf_trace_connect_cb_list = xbt_dynar_new(sizeof(sg_platf_trace_connect_cb_t), NULL);
  64
  65   /* ***************************************** */
  66   /* TUTORIAL: New TAG                         */
  67
  68   sg_platf_gpu_cb_list = xbt_dynar_new(sizeof(sg_platf_gpu_cb_t), NULL);
  69   /* ***************************************** */
  70 }
  71 /** Module management function: frees all internal data structures */
  72 void sg_platf_exit(void) {
  73   xbt_dynar_free(&sg_platf_link_cb_list);
  74   xbt_dynar_free(&sg_platf_postparse_cb_list);
  75   xbt_dynar_free(&sg_platf_cluster_cb_list);
  76   xbt_dynar_free(&sg_platf_cabinet_cb_list);
  77
  78   xbt_dynar_free(&sg_platf_trace_cb_list);
  79   xbt_dynar_free(&sg_platf_trace_connect_cb_list);
  80
  81   xbt_dynar_free(&sg_platf_ASroute_cb_list);
  82   xbt_dynar_free(&sg_platf_bypassRoute_cb_list);
  83   xbt_dynar_free(&sg_platf_bypassASroute_cb_list);
  84
  85   /* ***************************************** */
  86   /* TUTORIAL: New TAG                         */
  87
  88   xbt_dynar_free(&sg_platf_gpu_cb_list);
  89
  90   /* ***************************************** */
  91
  92   /* make sure that we will reinit the models while loading the platf once reinited */
  93   surf_parse_models_setup_already_called = 0;
  94 }
  95
  96 void sg_platf_new_host(sg_platf_host_cbarg_t host)
  97 {
  98   xbt_assert(! sg_host_by_name(host->id),
  99                      "Refusing to create a second host named '%s'.", host->id);
 100
 101   RoutingEdge *net = NULL;
 102   As* current_routing = routing_get_current();
 103   if (current_routing)
 104     net = routing_add_host(current_routing, host);
 105
 106   Cpu *cpu = surf_cpu_model_pm->createCpu(
 107         host->id,
 108         host->power_peak,
 109         host->pstate,
 110         host->power_scale,
 111         host->power_trace,
 112         host->core_amount,
 113         host->initial_state,
 114         host->state_trace,
 115         host->properties);
 116   surf_host_model->createHost(host->id, net, cpu);
 117
 118   if (TRACE_is_enabled() && TRACE_needs_platform())
 119     sg_instr_new_host(host);
 120 }
 121
 122 /**
 123  * \brief Add a "router" to the network element list
 124  */
 125 void sg_platf_new_router(sg_platf_router_cbarg_t router)
 126 {
 127   As* current_routing = routing_get_current();
 128
 129   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 130     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 131   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 132              "Reading a router, processing unit \"%s\" already exists",
 133              router->id);
 134
 135   RoutingEdge *info = new RoutingEdgeImpl(xbt_strdup(router->id),
 136                                             -1,
 137                                             SURF_NETWORK_ELEMENT_ROUTER,
 138                                             current_routing);
 139   info->setId(current_routing->parsePU(info));
 140   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 141   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->getId());
 142   routingEdgeCreatedCallbacks(info);
 143
 144   if (router->coord && strcmp(router->coord, "")) {
 145     unsigned int cursor;
 146     char*str;
 147
 148     if (!COORD_ASR_LEVEL)
 149       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 150     /* Pre-parse the host coordinates */
 151     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 152     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 153     xbt_dynar_foreach(ctn_str,cursor, str) {
 154       double val = atof(str);
 155       xbt_dynar_push(ctn,&val);
 156     }
 157     xbt_dynar_shrink(ctn, 0);
 158     xbt_dynar_free(&ctn_str);
 159     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 160     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 161   }
 162
 163   if (TRACE_is_enabled())
 164     sg_instr_new_router(router);
 165 }
 166
 167 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 168   unsigned int iterator;
 169   sg_platf_link_cb_t fun;
 170   xbt_dynar_foreach(sg_platf_link_cb_list, iterator, fun) {
 171     fun(link);
 172   }
 173 }
 174
 175 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster){
 176   unsigned int iterator;
 177   sg_platf_cluster_cb_t fun;
 178   xbt_dynar_foreach(sg_platf_cluster_cb_list, iterator, fun) {
 179     fun(cluster);
 180   }
 181 }
 182 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet){
 183   unsigned int iterator;
 184   sg_platf_cabinet_cb_t fun;
 185   xbt_dynar_foreach(sg_platf_cabinet_cb_list, iterator, fun) {
 186     fun(cabinet);
 187   }
 188 }
 189 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 190 {
 191   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 192                "Reading a storage, processing unit \"%s\" already exists", storage->id);
 193
 194   // Verification of an existing type_id
 195 #ifndef NDEBUG
 196   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 197 #endif
 198   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 199
 200   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 201       storage->id,
 202       storage->type_id,
 203       storage->content);
 204
 205   xbt_lib_set(storage_lib,
 206       storage->id,
 207       ROUTING_STORAGE_LEVEL,
 208       (void *) xbt_strdup(storage->type_id));
 209
 210   void* stype = xbt_lib_get_or_null(storage_type_lib,
 211                                     storage->type_id,
 212                                     ROUTING_STORAGE_TYPE_LEVEL);
 213   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 214
 215   // if storage content is not specified use the content of storage_type if exist
 216   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 217     storage->content = ((storage_type_t) stype)->content;
 218     storage->content_type = ((storage_type_t) stype)->content_type;
 219     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 220         storage->id,((storage_type_t) stype)->content_type,
 221         ((storage_type_t) stype)->type_id);
 222   }
 223
 224   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 225       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 226       "\n\t\tproperties '%p''\n",
 227       storage->id,
 228       ((storage_type_t) stype)->model,
 229       ((storage_type_t) stype)->type_id,
 230       storage->content,
 231       storage->content_type,
 232       storage->properties);
 233
 234   surf_storage_model->createStorage(storage->id,
 235                                      ((storage_type_t) stype)->type_id,
 236                                      storage->content,
 237                                      storage->content_type,
 238                                      storage->properties,
 239                                      storage->attach);
 240 }
 241 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 242
 243   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 244                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 245
 246   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 247   stype->model = xbt_strdup(storage_type->model);
 248   stype->properties = storage_type->properties;
 249   stype->content = xbt_strdup(storage_type->content);
 250   stype->content_type = xbt_strdup(storage_type->content_type);
 251   stype->type_id = xbt_strdup(storage_type->id);
 252   stype->size = storage_type->size;
 253   stype->model_properties = storage_type->model_properties;
 254
 255   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 256       "content '%s', and content_type '%s'",
 257       stype->type_id,
 258       stype->model,
 259       storage_type->content,
 260       storage_type->content_type);
 261
 262   xbt_lib_set(storage_type_lib,
 263       stype->type_id,
 264       ROUTING_STORAGE_TYPE_LEVEL,
 265       (void *) stype);
 266 }
 267 void sg_platf_new_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 268 {
 269   THROW_UNIMPLEMENTED;
 270 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 271 //  mnt->id = xbt_strdup(mstorage->type_id);
 272 //  mnt->name = xbt_strdup(mstorage->name);
 273 //
 274 //  if(!mount_list){
 275 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 276 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 277 //  }
 278 //  xbt_dynar_push(mount_list,(void *) mnt);
 279 //  free(mnt->id);
 280 //  free(mnt->name);
 281 //  xbt_free(mnt);
 282 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 283 }
 284
 285 static void mount_free(void *p)
 286 {
 287   mount_t mnt = (mount_t) p;
 288   xbt_free(mnt->name);
 289 }
 290
 291 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 292   // Verification of an existing storage
 293 #ifndef NDEBUG
 294   void* storage = xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL);
 295 #endif
 296   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->storageId);
 297
 298   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 299
 300   s_mount_t mnt;
 301   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 302   mnt.name = xbt_strdup(mount->name);
 303
 304   if(!mount_list){
 305     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 306     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 307   }
 308   xbt_dynar_push(mount_list, &mnt);
 309 }
 310
 311 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 312 {
 313   routing_get_current()->parseRoute(route);
 314 }
 315
 316 void sg_platf_new_ASroute(sg_platf_route_cbarg_t ASroute) {
 317   unsigned int iterator;
 318   sg_platf_route_cb_t fun;
 319   xbt_dynar_foreach(sg_platf_ASroute_cb_list, iterator, fun) {
 320     fun(ASroute);
 321   }
 322 }
 323 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute) {
 324   unsigned int iterator;
 325   sg_platf_route_cb_t fun;
 326   xbt_dynar_foreach(sg_platf_bypassRoute_cb_list, iterator, fun) {
 327     fun(bypassRoute);
 328   }
 329 }
 330 void sg_platf_new_bypassASroute(sg_platf_route_cbarg_t bypassASroute) {
 331   unsigned int iterator;
 332   sg_platf_route_cb_t fun;
 333   xbt_dynar_foreach(sg_platf_bypassASroute_cb_list, iterator, fun) {
 334     fun(bypassASroute);
 335   }
 336 }
 337 void sg_platf_new_trace(sg_platf_trace_cbarg_t trace) {
 338   unsigned int iterator;
 339   sg_platf_trace_cb_t fun;
 340   xbt_dynar_foreach(sg_platf_trace_cb_list, iterator, fun) {
 341     fun(trace);
 342   }
 343 }
 344 void sg_platf_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect) {
 345   unsigned int iterator;
 346   sg_platf_trace_connect_cb_t fun;
 347   xbt_dynar_foreach(sg_platf_trace_connect_cb_list, iterator, fun) {
 348     fun(trace_connect);
 349   }
 350 }
 351
 352 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 353 {
 354   if (!simix_global)
 355     xbt_die("Cannot create process without SIMIX.");
 356
 357   sg_host_t host = sg_host_by_name(process->host);
 358   if (!host)
 359     THROWF(arg_error, 0, "Host '%s' unknown", process->host);
 360   xbt_main_func_t parse_code = SIMIX_get_registered_function(process->function);
 361   xbt_assert(parse_code, "Function '%s' unknown", process->function);
 362
 363   double start_time = process->start_time;
 364   double kill_time  = process->kill_time;
 365   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
 366
 367   smx_process_arg_t arg = NULL;
 368   smx_process_t process_created = NULL;
 369
 370   arg = xbt_new0(s_smx_process_arg_t, 1);
 371   arg->code = parse_code;
 372   arg->data = NULL;
 373   arg->hostname = sg_host_get_name(host);
 374   arg->argc = process->argc;
 375   arg->argv = xbt_new(char *,process->argc);
 376   int i;
 377   for (i=0; i<process->argc; i++)
 378     arg->argv[i] = xbt_strdup(process->argv[i]);
 379   arg->name = xbt_strdup(arg->argv[0]);
 380   arg->kill_time = kill_time;
 381   arg->properties = current_property_set;
 382   if (!sg_host_simix(host)->boot_processes) {
 383     sg_host_simix(host)->boot_processes = xbt_dynar_new(sizeof(smx_process_arg_t), _SIMIX_host_free_process_arg);
 384   }
 385   xbt_dynar_push_as(sg_host_simix(host)->boot_processes,smx_process_arg_t,arg);
 386
 387   if (start_time > SIMIX_get_clock()) {
 388     arg = xbt_new0(s_smx_process_arg_t, 1);
 389     arg->name = (char*)(process->argv)[0];
 390     arg->code = parse_code;
 391     arg->data = NULL;
 392     arg->hostname = sg_host_get_name(host);
 393     arg->argc = process->argc;
 394     arg->argv = (char**)(process->argv);
 395     arg->kill_time = kill_time;
 396     arg->properties = current_property_set;
 397
 398     XBT_DEBUG("Process %s(%s) will be started at time %f", arg->name,
 399            arg->hostname, start_time);
 400     SIMIX_timer_set(start_time, [](void* arg) {
 401       SIMIX_process_create_from_wrapper((smx_process_arg_t) arg);
 402     }, arg);
 403   } else {                      // start_time <= SIMIX_get_clock()
 404     XBT_DEBUG("Starting Process %s(%s) right now", process->argv[0], sg_host_get_name(host));
 405
 406     if (simix_global->create_process_function)
 407       process_created = simix_global->create_process_function(
 408                                             (char*)(process->argv)[0],
 409                                             parse_code,
 410                                             NULL,
 411                                             sg_host_get_name(host),
 412                                             kill_time,
 413                                             process->argc,
 414                                             (char**)(process->argv),
 415                                             current_property_set,
 416                                             auto_restart, NULL);
 417     else
 418       process_created = simcall_process_create((char*)(process->argv)[0], parse_code, NULL, sg_host_get_name(host), kill_time, process->argc,
 419           (char**)process->argv, current_property_set,auto_restart);
 420
 421     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 422     if (!process_created) {
 423       return;
 424     }
 425   }
 426   current_property_set = NULL;
 427 }
 428
 429 void sg_platf_route_begin (sg_platf_route_cbarg_t route){
 430   route->link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 431 }
 432 void sg_platf_ASroute_begin (sg_platf_route_cbarg_t ASroute){
 433   ASroute->link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 434 }
 435
 436 void sg_platf_route_end (sg_platf_route_cbarg_t route){
 437   sg_platf_new_route(route);
 438 }
 439 void sg_platf_ASroute_end (sg_platf_route_cbarg_t ASroute){
 440   sg_platf_new_ASroute(ASroute);
 441 }
 442
 443 void sg_platf_route_add_link (const char* link_id, sg_platf_route_cbarg_t route){
 444   char *link_name = xbt_strdup(link_id);
 445   xbt_dynar_push(route->link_list, &link_name);
 446 }
 447 void sg_platf_ASroute_add_link (const char* link_id, sg_platf_route_cbarg_t ASroute){
 448   char *link_name = xbt_strdup(link_id);
 449   xbt_dynar_push(ASroute->link_list, &link_name);
 450 }
 451
 452 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 453
 454 void sg_platf_end() {
 455   unsigned int iterator;
 456   void_f_void_t fun;
 457   xbt_dynar_foreach(sg_platf_postparse_cb_list, iterator, fun) {
 458     fun();
 459   }
 460 }
 461
 462 void sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 463 {
 464   if (!surf_parse_models_setup_already_called) {
 465     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 466      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 467      *
 468      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 469      * (FIXME: check it out by creating a file beginning with one of these tags)
 470      * but cluster and peer create ASes internally, so putting the code in there is ok.
 471      *
 472      * TODO, There used to be a guard protecting here against
 473      * xbt_dynar_length(sg_platf_AS_begin_cb_list) because we don't want to
 474      * initialize the models if we are parsing the file to get the deployment.
 475      * That could happen if the same file would be used for platf and deploy:
 476      * it'd contain AS tags even during the deploy parsing. Removing that guard
 477      * would result of the models to get re-inited when parsing for deploy.
 478      * Currently using the same file for platform and deployment is broken
 479      * however. This guard will have to ba adapted in order to make this feature
 480      * work again.
 481      */
 482     surf_parse_models_setup_already_called = 1;
 483     surf_config_models_setup();
 484   }
 485
 486   routing_AS_begin(AS);
 487   if (TRACE_is_enabled())
 488     sg_instr_AS_begin(AS);
 489 }
 490
 491 void sg_platf_new_AS_end()
 492 {
 493   routing_AS_end();
 494   if (TRACE_is_enabled())
 495     sg_instr_AS_end();
 496 }
 497
 498 /* ***************************************** */
 499 /* TUTORIAL: New TAG                         */
 500
 501 void sg_platf_new_gpu(sg_platf_gpu_cbarg_t gpu) {
 502   unsigned int iterator;
 503   void_f_void_t fun;
 504   xbt_dynar_foreach(sg_platf_gpu_cb_list, iterator, fun) {
 505     fun();
 506   }
 507 }
 508
 509 void sg_platf_gpu_add_cb(sg_platf_gpu_cb_t fct) {
 510   xbt_dynar_push(sg_platf_gpu_cb_list, &fct);
 511 }
 512
 513 /* ***************************************** */
 514
 515 void sg_platf_link_add_cb(sg_platf_link_cb_t fct) {
 516   xbt_dynar_push(sg_platf_link_cb_list, &fct);
 517 }
 518 void sg_platf_cluster_add_cb(sg_platf_cluster_cb_t fct) {
 519   xbt_dynar_push(sg_platf_cluster_cb_list, &fct);
 520 }
 521 void sg_platf_cabinet_add_cb(sg_platf_cabinet_cb_t fct) {
 522   xbt_dynar_push(sg_platf_cabinet_cb_list, &fct);
 523 }
 524 void sg_platf_postparse_add_cb(void_f_void_t fct) {
 525   xbt_dynar_push(sg_platf_postparse_cb_list, &fct);
 526 }
 527 void sg_platf_ASroute_add_cb(sg_platf_route_cb_t fct) {
 528   xbt_dynar_push(sg_platf_ASroute_cb_list, &fct);
 529 }
 530 void sg_platf_bypassRoute_add_cb(sg_platf_route_cb_t fct) {
 531   xbt_dynar_push(sg_platf_bypassRoute_cb_list, &fct);
 532 }
 533 void sg_platf_bypassASroute_add_cb(sg_platf_route_cb_t fct) {
 534   xbt_dynar_push(sg_platf_bypassASroute_cb_list, &fct);
 535 }
 536 void sg_platf_trace_add_cb(sg_platf_trace_cb_t fct) {
 537   xbt_dynar_push(sg_platf_trace_cb_list, &fct);
 538 }
 539 void sg_platf_trace_connect_add_cb(sg_platf_trace_connect_cb_t fct) {
 540   xbt_dynar_push(sg_platf_trace_connect_cb_list, &fct);
 541 }
 542 void sg_platf_rng_stream_init(unsigned long seed[6]) {
 543   RngStream_SetPackageSeed(seed);
 544   sg_platf_rng_stream = RngStream_CreateStream(NULL);
 545 }
 546
 547 RngStream sg_platf_rng_stream_get(const char* id) {
 548   RngStream stream = NULL;
 549   unsigned int id_hash;
 550
 551   stream = RngStream_CopyStream(sg_platf_rng_stream);
 552   id_hash = xbt_str_hash(id);
 553   RngStream_AdvanceState(stream, 0, (long)id_hash);
 554
 555   return stream;
 556 }