src/simix/smx_host.c

   1 /* Copyright (c) 2007-2014. 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 "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->process_list =
  32       xbt_swag_new(xbt_swag_offset(proc, host_proc_hookup));
  33
  34   /* Update global variables */
  35   xbt_lib_set(host_lib,name,SIMIX_HOST_LEVEL,smx_host);
  36
  37   return xbt_lib_get_elm_or_null(host_lib, name);
  38 }
  39
  40 void simcall_HANDLER_host_on(smx_simcall_t simcall, smx_host_t h)
  41 {
  42   SIMIX_host_on(h);
  43 }
  44
  45 /**
  46  * \brief Start the host if it is off
  47  *
  48  */
  49 void SIMIX_host_on(smx_host_t h)
  50 {
  51   smx_host_priv_t host = SIMIX_host_priv(h);
  52
  53   xbt_assert((host != NULL), "Invalid parameters");
  54
  55   if (surf_resource_get_state(surf_workstation_resource_priv(h))==SURF_RESOURCE_OFF) {
  56     surf_resource_set_state(surf_workstation_resource_priv(h), SURF_RESOURCE_ON);
  57
  58     unsigned int cpt;
  59     smx_process_arg_t arg;
  60     xbt_dynar_foreach(host->boot_processes,cpt,arg) {
  61       smx_process_t process;
  62
  63       char** argv = xbt_new(char*, arg->argc);
  64       for (int i=0; i<arg->argc; i++)
  65         argv[i] = xbt_strdup(arg->argv[i]);
  66
  67       XBT_DEBUG("Booting Process %s(%s) right now", arg->argv[0], arg->hostname);
  68       if (simix_global->create_process_function) {
  69         simix_global->create_process_function(&process,
  70                                               argv[0],
  71                                               arg->code,
  72                                               NULL,
  73                                               arg->hostname,
  74                                               arg->kill_time,
  75                                               arg->argc,
  76                                               argv,
  77                                               arg->properties,
  78                                               arg->auto_restart,
  79                                               NULL);
  80       } else {
  81         simcall_process_create(&process,
  82                                arg->argv[0],
  83                                arg->code,
  84                                NULL,
  85                                arg->hostname,
  86                                arg->kill_time,
  87                                arg->argc,
  88                                argv,
  89                                arg->properties,
  90                                arg->auto_restart);
  91       }
  92     }
  93   }
  94 }
  95
  96 void simcall_HANDLER_host_off(smx_simcall_t simcall, smx_host_t h)
  97 {
  98   SIMIX_host_off(h, simcall->issuer);
  99 }
 100
 101 /**
 102  * \brief Stop the host if it is on
 103  *
 104  */
 105 void SIMIX_host_off(smx_host_t h, smx_process_t issuer)
 106 {
 107   smx_host_priv_t host = SIMIX_host_priv(h);
 108
 109   xbt_assert((host != NULL), "Invalid parameters");
 110
 111   if (surf_resource_get_state(surf_workstation_resource_priv(h))==SURF_RESOURCE_ON) {
 112         surf_resource_set_state(surf_workstation_resource_priv(h), SURF_RESOURCE_OFF);
 113
 114     /* Clean Simulator data */
 115     if (xbt_swag_size(host->process_list) != 0) {
 116       smx_process_t process = NULL;
 117       xbt_swag_foreach(process, host->process_list) {
 118         SIMIX_process_kill(process, issuer);
 119         XBT_DEBUG("Killing %s on %s by %s", process->name,  sg_host_name(process->smx_host), issuer->name);
 120       }
 121     }
 122   }
 123   /*xbt_dynar_t vms = surf_workstation_get_vms(h);
 124   unsigned int cpt;
 125   smx_host_t vm;
 126   xbt_dynar_foreach(vms, cpt, vm) {
 127     SIMIX_vm_shutdown(vm, issuer);
 128     SIMIX_vm_destroy(vm);
 129   }
 130   xbt_dynar_free(&vms);*/
 131 }
 132
 133 /**
 134  * \brief Internal function to destroy a SIMIX host.
 135  *
 136  * \param h the host to destroy (a smx_host_t)
 137  */
 138 void SIMIX_host_destroy(void *h)
 139 {
 140   smx_host_priv_t host = (smx_host_priv_t) h;
 141
 142   xbt_assert((host != NULL), "Invalid parameters");
 143
 144   /* Clean Simulator data */
 145   if (xbt_swag_size(host->process_list) != 0) {
 146     char *msg = xbt_strdup("Shutting down host, but it's not empty:");
 147     char *tmp;
 148     smx_process_t process = NULL;
 149
 150     xbt_swag_foreach(process, host->process_list) {
 151       tmp = bprintf("%s\n\t%s", msg, process->name);
 152       free(msg);
 153       msg = tmp;
 154     }
 155     SIMIX_display_process_status();
 156     THROWF(arg_error, 0, "%s", msg);
 157   }
 158   xbt_dynar_free(&host->auto_restart_processes);
 159   xbt_dynar_free(&host->boot_processes);
 160   xbt_swag_free(host->process_list);
 161
 162   /* Clean host structure */
 163   free(host);
 164   return;
 165 }
 166
 167 smx_host_t simcall_HANDLER_host_get_by_name(smx_simcall_t simcall, const char *name){
 168    return SIMIX_host_get_by_name(name);
 169 }
 170 smx_host_t SIMIX_host_get_by_name(const char *name){
 171   xbt_assert(((simix_global != NULL)
 172                && (host_lib != NULL)),
 173               "Environment not set yet");
 174
 175   return xbt_lib_get_elm_or_null(host_lib, name);
 176 }
 177
 178 smx_host_t SIMIX_host_self(void)
 179 {
 180   smx_process_t process = SIMIX_process_self();
 181   return (process == NULL) ? NULL : SIMIX_process_get_host(process);
 182 }
 183
 184 const char* simcall_HANDLER_host_self_get_name(smx_simcall_t simcall){
 185    return SIMIX_host_self_get_name();
 186 }
 187 /* needs to be public and without simcall because it is called
 188    by exceptions and logging events */
 189 const char* SIMIX_host_self_get_name(void)
 190 {
 191   smx_host_t host = SIMIX_host_self();
 192   if (host == NULL || SIMIX_process_self() == simix_global->maestro_process)
 193     return "";
 194
 195   return SIMIX_host_get_name(host);
 196 }
 197
 198 const char* simcall_HANDLER_host_get_name(smx_simcall_t simcall, smx_host_t host){
 199    return SIMIX_host_get_name(host);
 200 }
 201 const char* SIMIX_host_get_name(smx_host_t host){
 202   xbt_assert((host != NULL), "Invalid parameters");
 203
 204   return sg_host_name(host);
 205 }
 206
 207 xbt_dict_t simcall_HANDLER_host_get_properties(smx_simcall_t simcall, smx_host_t host){
 208   return SIMIX_host_get_properties(host);
 209 }
 210 xbt_dict_t SIMIX_host_get_properties(smx_host_t host){
 211   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 212
 213   return surf_resource_get_properties(surf_workstation_resource_priv(host));
 214 }
 215
 216 double simcall_HANDLER_host_get_speed(smx_simcall_t simcall, smx_host_t host){
 217   return SIMIX_host_get_speed(host);
 218 }
 219 double SIMIX_host_get_speed(smx_host_t host){
 220   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 221   return surf_workstation_get_speed(host, 1.0);
 222 }
 223
 224 int simcall_HANDLER_host_get_core(smx_simcall_t simcall, smx_host_t host){
 225   return SIMIX_host_get_core(host);
 226 }
 227 int SIMIX_host_get_core(smx_host_t host){
 228   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 229
 230   return surf_workstation_get_core(host);
 231 }
 232
 233 xbt_swag_t simcall_HANDLER_host_get_process_list(smx_simcall_t simcall, smx_host_t host){
 234   return SIMIX_host_get_process_list(host);
 235 }
 236
 237 xbt_swag_t SIMIX_host_get_process_list(smx_host_t host){
 238   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 239   smx_host_priv_t host_priv = SIMIX_host_priv(host);
 240
 241   return host_priv->process_list;
 242 }
 243
 244
 245 double simcall_HANDLER_host_get_available_speed(smx_simcall_t simcall, smx_host_t host){
 246   return SIMIX_host_get_available_speed(host);
 247 }
 248 double SIMIX_host_get_available_speed(smx_host_t host){
 249   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 250
 251   return surf_workstation_get_available_speed(host);
 252 }
 253
 254 double simcall_HANDLER_host_get_current_power_peak(smx_simcall_t simcall, smx_host_t host){
 255   return SIMIX_host_get_current_power_peak(host);
 256 }
 257 double SIMIX_host_get_current_power_peak(smx_host_t host) {
 258           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 259           return surf_workstation_get_current_power_peak(host);
 260 }
 261
 262 double simcall_HANDLER_host_get_power_peak_at(smx_simcall_t simcall, smx_host_t host, int pstate_index){
 263   return SIMIX_host_get_power_peak_at(host, pstate_index);
 264 }
 265 double SIMIX_host_get_power_peak_at(smx_host_t host, int pstate_index) {
 266           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 267
 268           return surf_workstation_get_power_peak_at(host, pstate_index);
 269 }
 270
 271 int simcall_HANDLER_host_get_nb_pstates(smx_simcall_t simcall, smx_host_t host){
 272   return SIMIX_host_get_nb_pstates(host);
 273 }
 274 int SIMIX_host_get_nb_pstates(smx_host_t host) {
 275           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 276
 277           return surf_workstation_get_nb_pstates(host);
 278 }
 279
 280
 281 void simcall_HANDLER_host_set_power_peak_at(smx_simcall_t simcall, smx_host_t host, int pstate_index){
 282   SIMIX_host_set_power_peak_at(host, pstate_index);
 283 }
 284 void SIMIX_host_set_power_peak_at(smx_host_t host, int pstate_index) {
 285           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 286
 287           surf_workstation_set_power_peak_at(host, pstate_index);
 288 }
 289
 290 double simcall_HANDLER_host_get_consumed_energy(smx_simcall_t simcall, smx_host_t host){
 291   return SIMIX_host_get_consumed_energy(host);
 292 }
 293 double SIMIX_host_get_consumed_energy(smx_host_t host) {
 294           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 295           return surf_workstation_get_consumed_energy(host);
 296 }
 297
 298 int simcall_HANDLER_host_get_state(smx_simcall_t simcall, smx_host_t host){
 299   return SIMIX_host_get_state(host);
 300 }
 301 int SIMIX_host_get_state(smx_host_t host){
 302   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 303
 304   return surf_resource_get_state(surf_workstation_resource_priv(host));
 305 }
 306
 307 void _SIMIX_host_free_process_arg(void *data)
 308 {
 309   smx_process_arg_t arg = *(void**)data;
 310   int i;
 311   for (i = 0; i < arg->argc; i++)
 312     xbt_free(arg->argv[i]);
 313   xbt_free(arg->argv);
 314   xbt_free(arg->name);
 315   xbt_free(arg);
 316 }
 317 /**
 318  * \brief Add a process to the list of the processes that the host will restart when it comes back
 319  * This function add a process to the list of the processes that will be restarted when the host comes
 320  * back. It is expected that this function is called when the host is down.
 321  * The processes will only be restarted once, meaning that you will have to register the process
 322  * again to restart the process again.
 323  */
 324 void SIMIX_host_add_auto_restart_process(smx_host_t host,
 325                                          const char *name,
 326                                          xbt_main_func_t code,
 327                                          void *data,
 328                                          const char *hostname,
 329                                          double kill_time,
 330                                          int argc, char **argv,
 331                                          xbt_dict_t properties,
 332                                          int auto_restart)
 333 {
 334   if (!SIMIX_host_priv(host)->auto_restart_processes) {
 335     SIMIX_host_priv(host)->auto_restart_processes = xbt_dynar_new(sizeof(smx_process_arg_t),_SIMIX_host_free_process_arg);
 336   }
 337   smx_process_arg_t arg = xbt_new(s_smx_process_arg_t,1);
 338   arg->name = xbt_strdup(name);
 339   arg->code = code;
 340   arg->data = data;
 341   arg->hostname = hostname;
 342   arg->kill_time = kill_time;
 343   arg->argc = argc;
 344
 345   arg->argv = xbt_new(char*,argc + 1);
 346
 347   int i;
 348   for (i = 0; i < argc; i++) {
 349     arg->argv[i] = xbt_strdup(argv[i]);
 350   }
 351   arg->argv[argc] = NULL;
 352
 353   arg->properties = properties;
 354   arg->auto_restart = auto_restart;
 355
 356   if( SIMIX_host_get_state(host) == SURF_RESOURCE_OFF
 357       && !xbt_dict_get_or_null(watched_hosts_lib,sg_host_name(host))){
 358     xbt_dict_set(watched_hosts_lib,sg_host_name(host),host,NULL);
 359     XBT_DEBUG("Have pushed host %s to watched_hosts_lib because state == SURF_RESOURCE_OFF",sg_host_name(host));
 360   }
 361   xbt_dynar_push_as(SIMIX_host_priv(host)->auto_restart_processes,smx_process_arg_t,arg);
 362 }
 363 /**
 364  * \brief Restart the list of processes that have been registered to the host
 365  */
 366 void SIMIX_host_restart_processes(smx_host_t host)
 367 {
 368   unsigned int cpt;
 369   smx_process_arg_t arg;
 370   xbt_dynar_t process_list = SIMIX_host_priv(host)->auto_restart_processes;
 371   if (!process_list)
 372     return;
 373
 374   xbt_dynar_foreach (process_list, cpt, arg) {
 375
 376     smx_process_t process;
 377
 378     XBT_DEBUG("Restarting Process %s(%s) right now", arg->argv[0], arg->hostname);
 379     if (simix_global->create_process_function) {
 380       simix_global->create_process_function(&process,
 381                                             arg->argv[0],
 382                                             arg->code,
 383                                             NULL,
 384                                             arg->hostname,
 385                                             arg->kill_time,
 386                                             arg->argc,
 387                                             arg->argv,
 388                                             arg->properties,
 389                                             arg->auto_restart,
 390                                             NULL);
 391     } else {
 392       simcall_process_create(&process,
 393                              arg->argv[0],
 394                              arg->code,
 395                              NULL,
 396                              arg->hostname,
 397                              arg->kill_time,
 398                              arg->argc,
 399                              arg->argv,
 400                              arg->properties,
 401                              arg->auto_restart);
 402
 403     }
 404     /* arg->argv is used by the process created above.  Hide it to
 405      * _SIMIX_host_free_process_arg() which is called by xbt_dynar_reset()
 406      * below. */
 407     arg->argc = 0;
 408     arg->argv = NULL;
 409   }
 410   xbt_dynar_reset(process_list);
 411 }
 412
 413 void SIMIX_host_autorestart(smx_host_t host)
 414 {
 415   if(simix_global->autorestart)
 416     simix_global->autorestart(host);
 417   else
 418     xbt_die("No function for simix_global->autorestart");
 419 }
 420
 421 smx_action_t simcall_HANDLER_host_execute(smx_simcall_t simcall,const char *name,
 422     smx_host_t host, double computation_amount, double priority, double bound, unsigned long affinity_mask){
 423   return SIMIX_host_execute(name, host, computation_amount, priority, bound, affinity_mask);
 424 }
 425 smx_action_t SIMIX_host_execute(const char *name,
 426     smx_host_t host, double computation_amount, double priority, double bound, unsigned long affinity_mask){
 427
 428   /* alloc structures and initialize */
 429   smx_action_t action = xbt_mallocator_get(simix_global->action_mallocator);
 430   action->type = SIMIX_ACTION_EXECUTE;
 431   action->name = xbt_strdup(name);
 432   action->state = SIMIX_RUNNING;
 433   action->execution.host = host;
 434
 435 #ifdef HAVE_TRACING
 436   action->category = NULL;
 437 #endif
 438
 439   /* set surf's action */
 440   if (!MC_is_active()) {
 441
 442     action->execution.surf_exec = surf_workstation_execute(host, computation_amount);
 443     surf_action_set_data(action->execution.surf_exec, action);
 444     surf_action_set_priority(action->execution.surf_exec, priority);
 445
 446     /* Note (hypervisor): for multicore, the bound value being passed to the
 447      * surf layer should not be zero (i.e., unlimited). It should be the
 448      * capacity of a CPU core. */
 449     if (bound == 0)
 450       surf_cpu_action_set_bound(action->execution.surf_exec, SIMIX_host_get_speed(host));
 451     else
 452       surf_cpu_action_set_bound(action->execution.surf_exec, bound);
 453
 454     if (affinity_mask != 0) {
 455       /* just a double check to confirm that this host is the host where this task is running. */
 456       xbt_assert(action->execution.host == host);
 457       surf_cpu_action_set_affinity(action->execution.surf_exec, host, affinity_mask);
 458     }
 459   }
 460
 461   XBT_DEBUG("Create execute action %p: %s", action, action->name);
 462
 463   return action;
 464 }
 465
 466 smx_action_t simcall_HANDLER_host_parallel_execute(smx_simcall_t simcall, const char *name,
 467     int host_nb, smx_host_t *host_list,
 468     double *computation_amount, double *communication_amount,
 469     double amount, double rate){
 470   return SIMIX_host_parallel_execute(name, host_nb, host_list, computation_amount,
 471                                      communication_amount, amount, rate);
 472 }
 473 smx_action_t SIMIX_host_parallel_execute(const char *name,
 474     int host_nb, smx_host_t *host_list,
 475     double *computation_amount, double *communication_amount,
 476     double amount, double rate){
 477
 478   void **workstation_list = NULL;
 479   int i;
 480
 481   /* alloc structures and initialize */
 482   smx_action_t action = xbt_mallocator_get(simix_global->action_mallocator);
 483   action->type = SIMIX_ACTION_PARALLEL_EXECUTE;
 484   action->name = xbt_strdup(name);
 485   action->state = SIMIX_RUNNING;
 486   action->execution.host = NULL; /* FIXME: do we need the list of hosts? */
 487
 488 #ifdef HAVE_TRACING
 489   action->category = NULL;
 490 #endif
 491
 492   /* set surf's action */
 493   workstation_list = xbt_new0(void *, host_nb);
 494   for (i = 0; i < host_nb; i++)
 495     workstation_list[i] = surf_workstation_resource_priv(host_list[i]);
 496
 497
 498   /* FIXME: what happens if host_list contains VMs and PMs. If
 499    * execute_parallel_task() does not change the state of the model, we can mix
 500    * them. */
 501   surf_model_t ws_model = surf_resource_model(host_list[0], SURF_WKS_LEVEL);
 502   for (i = 1; i < host_nb; i++) {
 503     surf_model_t ws_model_tmp = surf_resource_model(host_list[i], SURF_WKS_LEVEL);
 504     if (ws_model_tmp != ws_model) {
 505       XBT_CRITICAL("mixing VMs and PMs is not supported");
 506       DIE_IMPOSSIBLE;
 507     }
 508   }
 509
 510   /* set surf's action */
 511   if (!MC_is_active()) {
 512     action->execution.surf_exec =
 513       surf_workstation_model_execute_parallel_task((surf_workstation_model_t)surf_workstation_model,
 514                   host_nb, workstation_list, computation_amount, communication_amount, rate);
 515
 516     surf_action_set_data(action->execution.surf_exec, action);
 517   }
 518   XBT_DEBUG("Create parallel execute action %p", action);
 519
 520   return action;
 521 }
 522
 523 void simcall_HANDLER_host_execution_destroy(smx_simcall_t simcall, smx_action_t action){
 524   SIMIX_host_execution_destroy(action);
 525 }
 526 void SIMIX_host_execution_destroy(smx_action_t action){
 527   XBT_DEBUG("Destroy action %p", action);
 528
 529   if (action->execution.surf_exec) {
 530     surf_action_unref(action->execution.surf_exec);
 531     action->execution.surf_exec = NULL;
 532   }
 533   xbt_free(action->name);
 534   xbt_mallocator_release(simix_global->action_mallocator, action);
 535 }
 536
 537 void simcall_HANDLER_host_execution_cancel(smx_simcall_t simcall, smx_action_t action){
 538   SIMIX_host_execution_cancel(action);
 539 }
 540 void SIMIX_host_execution_cancel(smx_action_t action){
 541   XBT_DEBUG("Cancel action %p", action);
 542
 543   if (action->execution.surf_exec)
 544     surf_action_cancel(action->execution.surf_exec);
 545 }
 546
 547 double simcall_HANDLER_host_execution_get_remains(smx_simcall_t simcall, smx_action_t action){
 548   return SIMIX_host_execution_get_remains(action);
 549 }
 550 double SIMIX_host_execution_get_remains(smx_action_t action){
 551   double result = 0.0;
 552
 553   if (action->state == SIMIX_RUNNING)
 554     result = surf_action_get_remains(action->execution.surf_exec);
 555
 556   return result;
 557 }
 558
 559 e_smx_state_t simcall_HANDLER_host_execution_get_state(smx_simcall_t simcall, smx_action_t action){
 560   return SIMIX_host_execution_get_state(action);
 561 }
 562 e_smx_state_t SIMIX_host_execution_get_state(smx_action_t action){
 563   return action->state;
 564 }
 565
 566 void simcall_HANDLER_host_execution_set_priority(smx_simcall_t simcall, smx_action_t action,
 567                                         double priority){
 568   SIMIX_host_execution_set_priority(action, priority);
 569 }
 570 void SIMIX_host_execution_set_priority(smx_action_t action, double priority){
 571
 572   if(action->execution.surf_exec)
 573         surf_action_set_priority(action->execution.surf_exec, priority);
 574 }
 575
 576 void simcall_HANDLER_host_execution_set_bound(smx_simcall_t simcall, smx_action_t action,
 577                                         double bound){
 578   SIMIX_host_execution_set_bound(action, bound);
 579 }
 580 void SIMIX_host_execution_set_bound(smx_action_t action, double bound){
 581
 582   if(action->execution.surf_exec)
 583         surf_cpu_action_set_bound(action->execution.surf_exec, bound);
 584 }
 585
 586 void simcall_HANDLER_host_execution_set_affinity(smx_simcall_t simcall,
 587     smx_action_t action, smx_host_t host, unsigned long mask){
 588   SIMIX_host_execution_set_affinity(action, host, mask);
 589 }
 590 void SIMIX_host_execution_set_affinity(smx_action_t action, smx_host_t host, unsigned long mask){
 591   xbt_assert(action->type == SIMIX_ACTION_EXECUTE);
 592
 593   if (action->execution.surf_exec) {
 594     /* just a double check to confirm that this host is the host where this task is running. */
 595     xbt_assert(action->execution.host == host);
 596     surf_cpu_action_set_affinity(action->execution.surf_exec, host, mask);
 597   }
 598 }
 599
 600 void simcall_HANDLER_host_execution_wait(smx_simcall_t simcall, smx_action_t action){
 601
 602   XBT_DEBUG("Wait for execution of action %p, state %d", action, (int)action->state);
 603
 604   /* Associate this simcall to the action */
 605   xbt_fifo_push(action->simcalls, simcall);
 606   simcall->issuer->waiting_action = action;
 607
 608   /* set surf's action */
 609   if (MC_is_active()) {
 610     action->state = SIMIX_DONE;
 611     SIMIX_execution_finish(action);
 612     return;
 613   }
 614
 615   /* If the action is already finished then perform the error handling */
 616   if (action->state != SIMIX_RUNNING)
 617     SIMIX_execution_finish(action);
 618 }
 619
 620 void SIMIX_host_execution_suspend(smx_action_t action)
 621 {
 622   if(action->execution.surf_exec)
 623     surf_action_suspend(action->execution.surf_exec);
 624 }
 625
 626 void SIMIX_host_execution_resume(smx_action_t action)
 627 {
 628   if(action->execution.surf_exec)
 629     surf_action_resume(action->execution.surf_exec);
 630 }
 631
 632 void SIMIX_execution_finish(smx_action_t action)
 633 {
 634   xbt_fifo_item_t item;
 635   smx_simcall_t simcall;
 636
 637   xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
 638
 639     switch (action->state) {
 640
 641       case SIMIX_DONE:
 642         /* do nothing, action done */
 643   XBT_DEBUG("SIMIX_execution_finished: execution successful");
 644         break;
 645
 646       case SIMIX_FAILED:
 647         XBT_DEBUG("SIMIX_execution_finished: host '%s' failed", sg_host_name(simcall->issuer->smx_host));
 648         simcall->issuer->context->iwannadie = 1;
 649         SMX_EXCEPTION(simcall->issuer, host_error, 0, "Host failed");
 650         break;
 651
 652       case SIMIX_CANCELED:
 653         XBT_DEBUG("SIMIX_execution_finished: execution canceled");
 654         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 655         break;
 656
 657       default:
 658         xbt_die("Internal error in SIMIX_execution_finish: unexpected action state %d",
 659             (int)action->state);
 660     }
 661     /* check if the host is down */
 662     if (surf_resource_get_state(surf_workstation_resource_priv(simcall->issuer->smx_host)) != SURF_RESOURCE_ON) {
 663       simcall->issuer->context->iwannadie = 1;
 664     }
 665
 666     simcall->issuer->waiting_action =    NULL;
 667     simcall_host_execution_wait__set__result(simcall, action->state);
 668     SIMIX_simcall_answer(simcall);
 669   }
 670
 671   /* We no longer need it */
 672   SIMIX_host_execution_destroy(action);
 673 }
 674
 675
 676 void SIMIX_post_host_execute(smx_action_t action)
 677 {
 678   if (action->type == SIMIX_ACTION_EXECUTE && /* FIMXE: handle resource failure
 679                                                * for parallel tasks too */
 680       surf_resource_get_state(surf_workstation_resource_priv(action->execution.host)) == SURF_RESOURCE_OFF) {
 681     /* If the host running the action failed, notice it so that the asking
 682      * process can be killed if it runs on that host itself */
 683     action->state = SIMIX_FAILED;
 684   } else if (surf_action_get_state(action->execution.surf_exec) == SURF_ACTION_FAILED) {
 685     /* If the host running the action didn't fail, then the action was
 686      * canceled */
 687     action->state = SIMIX_CANCELED;
 688   } else {
 689     action->state = SIMIX_DONE;
 690   }
 691
 692   if (action->execution.surf_exec) {
 693     surf_action_unref(action->execution.surf_exec);
 694     action->execution.surf_exec = NULL;
 695   }
 696
 697   /* If there are simcalls associated with the action, then answer them */
 698   if (xbt_fifo_size(action->simcalls)) {
 699     SIMIX_execution_finish(action);
 700   }
 701 }
 702
 703
 704 #ifdef HAVE_TRACING
 705 void simcall_HANDLER_set_category(smx_simcall_t simcall, smx_action_t action,
 706                             const char *category){
 707   SIMIX_set_category(action, category);
 708 }
 709 void SIMIX_set_category(smx_action_t action, const char *category)
 710 {
 711   if (action->state != SIMIX_RUNNING) return;
 712   if (action->type == SIMIX_ACTION_EXECUTE){
 713     surf_action_set_category(action->execution.surf_exec, category);
 714   }else if (action->type == SIMIX_ACTION_COMMUNICATE){
 715     surf_action_set_category(action->comm.surf_comm, category);
 716   }
 717 }
 718 #endif
 719
 720 /**
 721  * \brief Function to get the parameters of the given the SIMIX host.
 722  *
 723  * \param host the host to get_phys_host (a smx_host_t)
 724  * \param param the parameter object space to be overwritten (a ws_params_t)
 725  */
 726 void SIMIX_host_get_params(smx_host_t ind_vm, ws_params_t params)
 727 {
 728   /* jump to ws_get_params(). */
 729   surf_workstation_get_params(ind_vm, params);
 730 }
 731
 732 void simcall_HANDLER_host_get_params(smx_simcall_t simcall, smx_host_t ind_vm, ws_params_t params)
 733 {
 734   SIMIX_host_get_params(ind_vm, params);
 735 }
 736
 737 void SIMIX_host_set_params(smx_host_t ind_vm, ws_params_t params)
 738 {
 739   /* jump to ws_set_params(). */
 740   surf_workstation_set_params(ind_vm, params);
 741 }
 742
 743 void simcall_HANDLER_host_set_params(smx_simcall_t simcall, smx_host_t ind_vm, ws_params_t params)
 744 {
 745   SIMIX_host_set_params(ind_vm, params);
 746 }
 747
 748 xbt_dict_t simcall_HANDLER_host_get_mounted_storage_list(smx_simcall_t simcall, smx_host_t host){
 749   return SIMIX_host_get_mounted_storage_list(host);
 750 }
 751
 752 xbt_dict_t SIMIX_host_get_mounted_storage_list(smx_host_t host){
 753   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 754
 755   return surf_workstation_get_mounted_storage_list(host);
 756 }
 757
 758 xbt_dynar_t simcall_HANDLER_host_get_attached_storage_list(smx_simcall_t simcall, smx_host_t host){
 759   return SIMIX_host_get_attached_storage_list(host);
 760 }
 761
 762 xbt_dynar_t SIMIX_host_get_attached_storage_list(smx_host_t host){
 763   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 764
 765   return surf_workstation_get_attached_storage_list(host);
 766 }