src/simix/smx_host.c

   1 /* Copyright (c) 2007-2013. 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 "smx_private.h"
   8 #include "xbt/sysdep.h"
   9 #include "xbt/log.h"
  10 #include "xbt/dict.h"
  11 #include "mc/mc.h"
  12
  13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_host, simix,
  14                                 "Logging specific to SIMIX (hosts)");
  15
  16 static void SIMIX_execution_finish(smx_action_t action);
  17
  18 /**
  19  * \brief Internal function to create a SIMIX host.
  20  * \param name name of the host to create
  21  * \param workstation the SURF workstation to encapsulate
  22  * \param data some user data (may be NULL)
  23  */
  24 smx_host_t SIMIX_host_create(const char *name,
  25                                void *workstation, void *data)
  26 {
  27   smx_host_priv_t smx_host = xbt_new0(s_smx_host_priv_t, 1);
  28   s_smx_process_t proc;
  29
  30   /* Host structure */
  31   smx_host->data = data;
  32   smx_host->process_list =
  33       xbt_swag_new(xbt_swag_offset(proc, host_proc_hookup));
  34
  35   /* Update global variables */
  36   xbt_lib_set(host_lib,name,SIMIX_HOST_LEVEL,smx_host);
  37
  38   return xbt_lib_get_or_null(host_lib, name, SIMIX_HOST_LEVEL);
  39 }
  40
  41 /**
  42  * \brief Internal function to destroy a SIMIX host.
  43  *
  44  * \param h the host to destroy (a smx_host_t)
  45  */
  46 void SIMIX_host_destroy(void *h)
  47 {
  48   smx_host_priv_t host = (smx_host_priv_t) h;
  49
  50   xbt_assert((host != NULL), "Invalid parameters");
  51
  52   /* Clean Simulator data */
  53   if (xbt_swag_size(host->process_list) != 0) {
  54     char *msg = xbt_strdup("Shutting down host, but it's not empty:");
  55     char *tmp;
  56     smx_process_t process = NULL;
  57
  58     xbt_swag_foreach(process, host->process_list) {
  59       tmp = bprintf("%s\n\t%s", msg, process->name);
  60       free(msg);
  61       msg = tmp;
  62     }
  63     SIMIX_display_process_status();
  64     THROWF(arg_error, 0, "%s", msg);
  65   }
  66   xbt_dynar_free(&host->auto_restart_processes);
  67   xbt_swag_free(host->process_list);
  68
  69   /* Clean host structure */
  70   free(host);
  71   return;
  72 }
  73
  74 ///**
  75 // * \brief Returns a dict of all hosts.
  76 // *
  77 // * \return List of all hosts (as a #xbt_dict_t)
  78 // */
  79 //xbt_dict_t SIMIX_host_get_dict(void)
  80 //{
  81 //  xbt_dict_t host_dict = xbt_dict_new_homogeneous(NULL);
  82 //  xbt_lib_cursor_t cursor = NULL;
  83 //  char *name = NULL;
  84 //  void **host = NULL;
  85 //
  86 //  xbt_lib_foreach(host_lib, cursor, name, host){
  87 //    if(host[SIMIX_HOST_LEVEL])
  88 //            xbt_dict_set(host_dict,name,host[SIMIX_HOST_LEVEL], NULL);
  89 //  }
  90 //  return host_dict;
  91 //}
  92 smx_host_t SIMIX_pre_host_get_by_name(smx_simcall_t simcall, const char *name){
  93    return SIMIX_host_get_by_name(name);
  94 }
  95 smx_host_t SIMIX_host_get_by_name(const char *name){
  96   xbt_assert(((simix_global != NULL)
  97                && (host_lib != NULL)),
  98               "Environment not set yet");
  99
 100   return xbt_lib_get_elm_or_null(host_lib, name);
 101 }
 102
 103 smx_host_t SIMIX_host_self(void)
 104 {
 105   smx_process_t process = SIMIX_process_self();
 106   return (process == NULL) ? NULL : SIMIX_process_get_host(process);
 107 }
 108
 109 const char* SIMIX_pre_host_self_get_name(smx_simcall_t simcall){
 110    return SIMIX_host_self_get_name();
 111 }
 112 /* needs to be public and without simcall because it is called
 113    by exceptions and logging events */
 114 const char* SIMIX_host_self_get_name(void)
 115 {
 116   smx_host_t host = SIMIX_host_self();
 117   if (host == NULL || SIMIX_process_self() == simix_global->maestro_process)
 118     return "";
 119
 120   return SIMIX_host_get_name(host);
 121 }
 122
 123 const char* SIMIX_pre_host_get_name(smx_simcall_t simcall, smx_host_t host){
 124    return SIMIX_host_get_name(host);
 125 }
 126 const char* SIMIX_host_get_name(smx_host_t host){
 127   xbt_assert((host != NULL), "Invalid parameters");
 128
 129   return sg_host_name(host);
 130 }
 131
 132 xbt_dict_t SIMIX_pre_host_get_properties(smx_simcall_t simcall, smx_host_t host){
 133   return SIMIX_host_get_properties(host);
 134 }
 135 xbt_dict_t SIMIX_host_get_properties(smx_host_t host){
 136   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 137
 138   return surf_workstation_model->extension.workstation.get_properties(host);
 139 }
 140
 141 double SIMIX_pre_host_get_speed(smx_simcall_t simcall, smx_host_t host){
 142   return SIMIX_host_get_speed(host);
 143 }
 144 double SIMIX_host_get_speed(smx_host_t host){
 145   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 146
 147   return surf_workstation_model->extension.workstation.
 148       get_speed(host, 1.0);
 149 }
 150
 151 int SIMIX_pre_host_get_core(smx_simcall_t simcall, smx_host_t host){
 152   return SIMIX_host_get_core(host);
 153 }
 154 int SIMIX_host_get_core(smx_host_t host){
 155   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 156
 157   return surf_workstation_model->extension.workstation.
 158       get_core(host);
 159 }
 160
 161 xbt_swag_t SIMIX_pre_host_get_process_list(smx_simcall_t simcall, smx_host_t host){
 162   return SIMIX_host_get_process_list(host);
 163 }
 164
 165 xbt_swag_t SIMIX_host_get_process_list(smx_host_t host){
 166   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 167   smx_host_priv_t host_priv = SIMIX_host_priv(host);
 168
 169   return host_priv->process_list;
 170 }
 171
 172
 173 double SIMIX_pre_host_get_available_speed(smx_simcall_t simcall, smx_host_t host){
 174   return SIMIX_host_get_available_speed(host);
 175 }
 176 double SIMIX_host_get_available_speed(smx_host_t host){
 177   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 178
 179   return surf_workstation_model->extension.workstation.
 180       get_available_speed(host);
 181 }
 182
 183 double SIMIX_pre_host_get_current_power_peak(smx_simcall_t simcall, smx_host_t host){
 184   return SIMIX_host_get_current_power_peak(host);
 185 }
 186 double SIMIX_host_get_current_power_peak(smx_host_t host) {
 187           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 188           return surf_workstation_model->extension.workstation.
 189                       get_current_power_peak(host);
 190 }
 191
 192 double SIMIX_pre_host_get_power_peak_at(smx_simcall_t simcall, smx_host_t host, int pstate_index){
 193   return SIMIX_host_get_power_peak_at(host, pstate_index);
 194 }
 195 double SIMIX_host_get_power_peak_at(smx_host_t host, int pstate_index) {
 196           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 197
 198           return surf_workstation_model->extension.workstation.
 199               get_power_peak_at(host, pstate_index);
 200 }
 201
 202 int SIMIX_pre_host_get_nb_pstates(smx_simcall_t simcall, smx_host_t host){
 203   return SIMIX_host_get_nb_pstates(host);
 204 }
 205 int SIMIX_host_get_nb_pstates(smx_host_t host) {
 206           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 207
 208           return surf_workstation_model->extension.workstation.
 209               get_nb_pstates(host);
 210 }
 211
 212
 213 void SIMIX_pre_host_set_power_peak_at(smx_simcall_t simcall, smx_host_t host, int pstate_index){
 214   SIMIX_host_set_power_peak_at(host, pstate_index);
 215 }
 216 void SIMIX_host_set_power_peak_at(smx_host_t host, int pstate_index) {
 217           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 218
 219           surf_workstation_model->extension.workstation.
 220               set_power_peak_at(host, pstate_index);
 221 }
 222
 223 double SIMIX_pre_host_get_consumed_energy(smx_simcall_t simcall, smx_host_t host){
 224   return SIMIX_host_get_consumed_energy(host);
 225 }
 226 double SIMIX_host_get_consumed_energy(smx_host_t host) {
 227           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 228           return surf_workstation_model->extension.workstation.
 229                       get_consumed_energy(host);
 230 }
 231
 232 int SIMIX_pre_host_get_state(smx_simcall_t simcall, smx_host_t host){
 233   return SIMIX_host_get_state(host);
 234 }
 235 int SIMIX_host_get_state(smx_host_t host){
 236   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 237
 238   return surf_workstation_model->extension.workstation.
 239       get_state(host);
 240 }
 241
 242 void* SIMIX_pre_host_self_get_data(smx_simcall_t simcall){
 243   return SIMIX_host_self_get_data();
 244 }
 245 void* SIMIX_host_self_get_data(void)
 246 {
 247   smx_host_t self = SIMIX_host_self();
 248   return SIMIX_host_get_data(self);
 249 }
 250
 251 void SIMIX_host_self_set_data(void *data)
 252 {
 253   smx_host_t self = SIMIX_host_self();
 254   SIMIX_host_set_data(self, data);
 255 }
 256
 257 void* SIMIX_pre_host_get_data(smx_simcall_t simcall,smx_host_t host){
 258   return SIMIX_host_get_data(host);
 259 }
 260 void* SIMIX_host_get_data(smx_host_t host){
 261   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 262
 263   return SIMIX_host_priv(host)->data;
 264 }
 265
 266 static void _SIMIX_host_free_process_arg(void *data)
 267 {
 268   smx_process_arg_t arg = *(void**)data;
 269   int i;
 270   for (i = 0; i < arg->argc; i++)
 271     xbt_free(arg->argv[i]);
 272   xbt_free(arg->argv);
 273   xbt_free(arg->name);
 274   xbt_free(arg);
 275 }
 276 /**
 277  * \brief Add a process to the list of the processes that the host will restart when it comes back
 278  * This function add a process to the list of the processes that will be restarted when the host comes
 279  * back. It is expected that this function is called when the host is down.
 280  * The processes will only be restarted once, meaning that you will have to register the process
 281  * again to restart the process again.
 282  */
 283 void SIMIX_host_add_auto_restart_process(smx_host_t host,
 284                                          const char *name,
 285                                          xbt_main_func_t code,
 286                                          void *data,
 287                                          const char *hostname,
 288                                          double kill_time,
 289                                          int argc, char **argv,
 290                                          xbt_dict_t properties,
 291                                          int auto_restart)
 292 {
 293   if (!SIMIX_host_priv(host)->auto_restart_processes) {
 294     SIMIX_host_priv(host)->auto_restart_processes = xbt_dynar_new(sizeof(smx_process_arg_t),_SIMIX_host_free_process_arg);
 295   }
 296   smx_process_arg_t arg = xbt_new(s_smx_process_arg_t,1);
 297   arg->name = xbt_strdup(name);
 298   arg->code = code;
 299   arg->data = data;
 300   arg->hostname = hostname;
 301   arg->kill_time = kill_time;
 302   arg->argc = argc;
 303
 304   arg->argv = xbt_new(char*,argc + 1);
 305
 306   int i;
 307   for (i = 0; i < argc; i++) {
 308     arg->argv[i] = xbt_strdup(argv[i]);
 309   }
 310   arg->argv[argc] = NULL;
 311
 312   arg->properties = properties;
 313   arg->auto_restart = auto_restart;
 314
 315   if( SIMIX_host_get_state(host) == SURF_RESOURCE_OFF
 316       && !xbt_dict_get_or_null(watched_hosts_lib,sg_host_name(host))){
 317     xbt_dict_set(watched_hosts_lib,sg_host_name(host),host,NULL);
 318     XBT_DEBUG("Have pushed host %s to watched_hosts_lib because state == SURF_RESOURCE_OFF",sg_host_name(host));
 319   }
 320   xbt_dynar_push_as(SIMIX_host_priv(host)->auto_restart_processes,smx_process_arg_t,arg);
 321 }
 322 /**
 323  * \brief Restart the list of processes that have been registered to the host
 324  */
 325 void SIMIX_host_restart_processes(smx_host_t host)
 326 {
 327   unsigned int cpt;
 328   smx_process_arg_t arg;
 329   xbt_dynar_t process_list = SIMIX_host_priv(host)->auto_restart_processes;
 330   if (!process_list)
 331     return;
 332
 333   xbt_dynar_foreach (process_list, cpt, arg) {
 334
 335     smx_process_t process;
 336
 337     XBT_DEBUG("Restarting Process %s(%s) right now", arg->argv[0], arg->hostname);
 338     if (simix_global->create_process_function) {
 339       simix_global->create_process_function(&process,
 340                                             arg->argv[0],
 341                                             arg->code,
 342                                             NULL,
 343                                             arg->hostname,
 344                                             arg->kill_time,
 345                                             arg->argc,
 346                                             arg->argv,
 347                                             arg->properties,
 348                                             arg->auto_restart);
 349     } else {
 350       simcall_process_create(&process,
 351                              arg->argv[0],
 352                              arg->code,
 353                              NULL,
 354                              arg->hostname,
 355                              arg->kill_time,
 356                              arg->argc,
 357                              arg->argv,
 358                              arg->properties,
 359                              arg->auto_restart);
 360
 361     }
 362     /* arg->argv is used by the process created above.  Hide it to
 363      * _SIMIX_host_free_process_arg() which is called by xbt_dynar_reset()
 364      * below. */
 365     arg->argc = 0;
 366     arg->argv = NULL;
 367   }
 368   xbt_dynar_reset(process_list);
 369 }
 370
 371 void SIMIX_host_autorestart(smx_host_t host)
 372 {
 373   if(simix_global->autorestart)
 374     simix_global->autorestart(host);
 375   else
 376     xbt_die("No function for simix_global->autorestart");
 377 }
 378
 379 void SIMIX_pre_host_set_data(smx_simcall_t simcall, smx_host_t host, void *data) {
 380   SIMIX_host_set_data(host, data);
 381 }
 382 void SIMIX_host_set_data(smx_host_t host, void *data){
 383   xbt_assert((host != NULL), "Invalid parameters");
 384   xbt_assert((SIMIX_host_priv(host)->data == NULL), "Data already set");
 385
 386   SIMIX_host_priv(host)->data = data;
 387 }
 388
 389 smx_action_t SIMIX_pre_host_execute(smx_simcall_t simcall,const char *name,
 390     smx_host_t host, double computation_amount, double priority){
 391   return SIMIX_host_execute(name, host, computation_amount, priority);
 392 }
 393 smx_action_t SIMIX_host_execute(const char *name,
 394     smx_host_t host, double computation_amount, double priority){
 395
 396   /* alloc structures and initialize */
 397   smx_action_t action = xbt_mallocator_get(simix_global->action_mallocator);
 398   action->type = SIMIX_ACTION_EXECUTE;
 399   action->name = xbt_strdup(name);
 400   action->state = SIMIX_RUNNING;
 401   action->execution.host = host;
 402
 403 #ifdef HAVE_TRACING
 404   action->category = NULL;
 405 #endif
 406
 407   /* set surf's action */
 408   if (!MC_is_active()) {
 409     action->execution.surf_exec =
 410       surf_workstation_model->extension.workstation.execute(host,
 411     computation_amount);
 412     surf_workstation_model->action_data_set(action->execution.surf_exec, action);
 413     surf_workstation_model->set_priority(action->execution.surf_exec, priority);
 414   }
 415
 416   XBT_DEBUG("Create execute action %p", action);
 417
 418   return action;
 419 }
 420
 421 smx_action_t SIMIX_pre_host_parallel_execute(smx_simcall_t simcall, const char *name,
 422     int host_nb, smx_host_t *host_list,
 423     double *computation_amount, double *communication_amount,
 424     double amount, double rate){
 425   return SIMIX_host_parallel_execute(name, host_nb, host_list, computation_amount,
 426                                      communication_amount, amount, rate);
 427 }
 428 smx_action_t SIMIX_host_parallel_execute(const char *name,
 429     int host_nb, smx_host_t *host_list,
 430     double *computation_amount, double *communication_amount,
 431     double amount, double rate){
 432
 433   void **workstation_list = NULL;
 434   int i;
 435
 436   /* alloc structures and initialize */
 437   smx_action_t action = xbt_mallocator_get(simix_global->action_mallocator);
 438   action->type = SIMIX_ACTION_PARALLEL_EXECUTE;
 439   action->name = xbt_strdup(name);
 440   action->state = SIMIX_RUNNING;
 441   action->execution.host = NULL; /* FIXME: do we need the list of hosts? */
 442
 443 #ifdef HAVE_TRACING
 444   action->category = NULL;
 445 #endif
 446
 447   /* set surf's action */
 448   workstation_list = xbt_new0(void *, host_nb);
 449   for (i = 0; i < host_nb; i++)
 450     workstation_list[i] = host_list[i];
 451
 452   /* set surf's action */
 453   if (!MC_is_active()) {
 454     action->execution.surf_exec =
 455       surf_workstation_model->extension.workstation.
 456       execute_parallel_task(host_nb, workstation_list, computation_amount,
 457                       communication_amount, rate);
 458
 459     surf_workstation_model->action_data_set(action->execution.surf_exec, action);
 460   }
 461   XBT_DEBUG("Create parallel execute action %p", action);
 462
 463   return action;
 464 }
 465
 466 void SIMIX_pre_host_execution_destroy(smx_simcall_t simcall, smx_action_t action){
 467   SIMIX_host_execution_destroy(action);
 468 }
 469 void SIMIX_host_execution_destroy(smx_action_t action){
 470   XBT_DEBUG("Destroy action %p", action);
 471
 472   if (action->execution.surf_exec) {
 473     surf_workstation_model->action_unref(action->execution.surf_exec);
 474     action->execution.surf_exec = NULL;
 475   }
 476   xbt_free(action->name);
 477   xbt_mallocator_release(simix_global->action_mallocator, action);
 478 }
 479
 480 void SIMIX_pre_host_execution_cancel(smx_simcall_t simcall, smx_action_t action){
 481   SIMIX_host_execution_cancel(action);
 482 }
 483 void SIMIX_host_execution_cancel(smx_action_t action){
 484   XBT_DEBUG("Cancel action %p", action);
 485
 486   if (action->execution.surf_exec)
 487     surf_workstation_model->action_cancel(action->execution.surf_exec);
 488 }
 489
 490 double SIMIX_pre_host_execution_get_remains(smx_simcall_t simcall, smx_action_t action){
 491   return SIMIX_host_execution_get_remains(action);
 492 }
 493 double SIMIX_host_execution_get_remains(smx_action_t action){
 494   double result = 0.0;
 495
 496   if (action->state == SIMIX_RUNNING)
 497     result = surf_workstation_model->get_remains(action->execution.surf_exec);
 498
 499   return result;
 500 }
 501
 502 e_smx_state_t SIMIX_pre_host_execution_get_state(smx_simcall_t simcall, smx_action_t action){
 503   return SIMIX_host_execution_get_state(action);
 504 }
 505 e_smx_state_t SIMIX_host_execution_get_state(smx_action_t action){
 506   return action->state;
 507 }
 508
 509 void SIMIX_pre_host_execution_set_priority(smx_simcall_t simcall, smx_action_t action,
 510                                         double priority){
 511   return SIMIX_host_execution_set_priority(action, priority);
 512 }
 513 void SIMIX_host_execution_set_priority(smx_action_t action, double priority){
 514   if(action->execution.surf_exec)
 515     surf_workstation_model->set_priority(action->execution.surf_exec, priority);
 516 }
 517
 518 void SIMIX_pre_host_execution_wait(smx_simcall_t simcall, smx_action_t action){
 519
 520   XBT_DEBUG("Wait for execution of action %p, state %d", action, (int)action->state);
 521
 522   /* Associate this simcall to the action */
 523   xbt_fifo_push(action->simcalls, simcall);
 524   simcall->issuer->waiting_action = action;
 525
 526   /* set surf's action */
 527   if (MC_is_active()) {
 528     action->state = SIMIX_DONE;
 529     SIMIX_execution_finish(action);
 530     return;
 531   }
 532
 533   /* If the action is already finished then perform the error handling */
 534   if (action->state != SIMIX_RUNNING)
 535     SIMIX_execution_finish(action);
 536 }
 537
 538 void SIMIX_host_execution_suspend(smx_action_t action)
 539 {
 540   if(action->execution.surf_exec)
 541     surf_workstation_model->suspend(action->execution.surf_exec);
 542 }
 543
 544 void SIMIX_host_execution_resume(smx_action_t action)
 545 {
 546   if(action->execution.surf_exec)
 547     surf_workstation_model->resume(action->execution.surf_exec);
 548 }
 549
 550 void SIMIX_execution_finish(smx_action_t action)
 551 {
 552   xbt_fifo_item_t item;
 553   smx_simcall_t simcall;
 554
 555   xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
 556
 557     switch (action->state) {
 558
 559       case SIMIX_DONE:
 560         /* do nothing, action done */
 561   XBT_DEBUG("SIMIX_execution_finished: execution successful");
 562         break;
 563
 564       case SIMIX_FAILED:
 565         XBT_DEBUG("SIMIX_execution_finished: host '%s' failed", sg_host_name(simcall->issuer->smx_host));
 566         simcall->issuer->context->iwannadie = 1;
 567         SMX_EXCEPTION(simcall->issuer, host_error, 0, "Host failed");
 568         break;
 569
 570       case SIMIX_CANCELED:
 571         XBT_DEBUG("SIMIX_execution_finished: execution canceled");
 572         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 573         break;
 574
 575       default:
 576         xbt_die("Internal error in SIMIX_execution_finish: unexpected action state %d",
 577             (int)action->state);
 578     }
 579     /* check if the host is down */
 580     if (surf_workstation_model->extension.
 581         workstation.get_state(simcall->issuer->smx_host) != SURF_RESOURCE_ON) {
 582       simcall->issuer->context->iwannadie = 1;
 583     }
 584
 585     simcall->issuer->waiting_action =    NULL;
 586     simcall_host_execution_wait__set__result(simcall, action->state);
 587     SIMIX_simcall_answer(simcall);
 588   }
 589
 590   /* We no longer need it */
 591   SIMIX_host_execution_destroy(action);
 592 }
 593
 594 void SIMIX_post_host_execute(smx_action_t action)
 595 {
 596   if (action->type == SIMIX_ACTION_EXECUTE && /* FIMXE: handle resource failure
 597                                                * for parallel tasks too */
 598       surf_workstation_model->extension.workstation.get_state(action->execution.host) == SURF_RESOURCE_OFF) {
 599     /* If the host running the action failed, notice it so that the asking
 600      * process can be killed if it runs on that host itself */
 601     action->state = SIMIX_FAILED;
 602   } else if (surf_workstation_model->action_state_get(action->execution.surf_exec) == SURF_ACTION_FAILED) {
 603     /* If the host running the action didn't fail, then the action was
 604      * canceled */
 605     action->state = SIMIX_CANCELED;
 606   } else {
 607     action->state = SIMIX_DONE;
 608   }
 609
 610   if (action->execution.surf_exec) {
 611     surf_workstation_model->action_unref(action->execution.surf_exec);
 612     action->execution.surf_exec = NULL;
 613   }
 614
 615   /* If there are simcalls associated with the action, then answer them */
 616   if (xbt_fifo_size(action->simcalls)) {
 617     SIMIX_execution_finish(action);
 618   }
 619 }
 620
 621
 622 #ifdef HAVE_TRACING
 623 void SIMIX_pre_set_category(smx_simcall_t simcall, smx_action_t action,
 624                             const char *category){
 625   SIMIX_set_category(action, category);
 626 }
 627 void SIMIX_set_category(smx_action_t action, const char *category)
 628 {
 629   if (action->state != SIMIX_RUNNING) return;
 630   if (action->type == SIMIX_ACTION_EXECUTE){
 631     surf_workstation_model->set_category(action->execution.surf_exec, category);
 632   }else if (action->type == SIMIX_ACTION_COMMUNICATE){
 633     surf_workstation_model->set_category(action->comm.surf_comm, category);
 634   }
 635 }
 636 #endif
 637
 638 xbt_dict_t SIMIX_pre_host_get_storage_list(smx_simcall_t simcall, smx_host_t host){
 639   return SIMIX_host_get_storage_list(host);
 640 }
 641 xbt_dict_t SIMIX_host_get_storage_list(smx_host_t host){
 642   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 643
 644   return surf_workstation_model->extension.workstation.get_storage_list(host);
 645 }