src/surf/storage.c

   1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012. 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/ex.h"
   8 #include "xbt/dict.h"
   9 #include "xbt/file_stat.h"
  10 #include "portable.h"
  11 #include "surf_private.h"
  12 #include "storage_private.h"
  13 #include "surf/surf_resource.h"
  14
  15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf,
  16                                 "Logging specific to the SURF storage module");
  17
  18 xbt_lib_t storage_lib;
  19 int ROUTING_STORAGE_LEVEL;      //Routing for storagelevel
  20 int ROUTING_STORAGE_HOST_LEVEL;
  21 int SURF_STORAGE_LEVEL;
  22 xbt_lib_t storage_type_lib;
  23 int ROUTING_STORAGE_TYPE_LEVEL; //Routing for storage_type level
  24
  25 xbt_dynar_t mount_list = NULL;  /* temporary store of current mount storage */
  26
  27 surf_model_t surf_storage_model = NULL;
  28 lmm_system_t storage_maxmin_system = NULL;
  29 static int storage_selective_update = 0;
  30 static xbt_swag_t
  31     storage_running_action_set_that_does_not_need_being_checked = NULL;
  32
  33 static xbt_dynar_t storage_list;
  34
  35 #define GENERIC_LMM_ACTION(action) action->generic_lmm_action
  36 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
  37
  38 static xbt_dict_t parse_storage_content(char *filename, unsigned long *used_size);
  39 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state);
  40 static surf_action_t storage_action_execute (void *storage, double size, e_surf_action_storage_type_t type);
  41
  42 static surf_action_t storage_action_stat(void *storage, surf_file_t stream)
  43 {
  44   surf_action_t action = storage_action_execute(storage,0, STAT);
  45   action->file = stream;
  46   action->stat = stream->content->stat;
  47   return action;
  48 }
  49
  50 static surf_action_t storage_action_open(void *storage, const char* mount, const char* path, const char* mode)
  51 {
  52   XBT_DEBUG("\tOpen file '%s'",path);
  53   xbt_dict_t content_dict = ((storage_t)storage)->content;
  54   surf_stat_t content = xbt_dict_get(content_dict,path);
  55
  56   surf_file_t file = xbt_new0(s_surf_file_t,1);
  57   file->name = xbt_strdup(path);
  58   file->content = content;
  59   file->storage = mount;
  60
  61   surf_action_t action = storage_action_execute(storage,0, OPEN);
  62   action->file = (void *)file;
  63   return action;
  64 }
  65
  66 static surf_action_t storage_action_close(void *storage, surf_file_t fp)
  67 {
  68   char *filename = fp->name;
  69   XBT_DEBUG("\tClose file '%s' size '%f'",filename,fp->content->stat.size);
  70   free(fp->name);
  71   fp->content = NULL;
  72   xbt_free(fp);
  73   surf_action_t action = storage_action_execute(storage,0, CLOSE);
  74   return action;
  75 }
  76
  77 static surf_action_t storage_action_read(void *storage, void* ptr, double size, size_t nmemb, surf_file_t stream)
  78 {
  79   surf_stat_t content = stream->content;
  80   if(size > content->stat.size)
  81     size = content->stat.size;
  82   surf_action_t action = storage_action_execute(storage,size,READ);
  83   return action;
  84 }
  85
  86 static surf_action_t storage_action_write(void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
  87 {
  88   char *filename = stream->name;
  89   surf_stat_t content = stream->content;
  90   XBT_DEBUG("\tWrite file '%s' size '%zu/%f'",filename,size,content->stat.size);
  91
  92   surf_action_t action = storage_action_execute(storage,size,WRITE);
  93   action->file = stream;
  94
  95   // If the storage is full
  96   if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
  97     storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
  98   }
  99   return action;
 100 }
 101
 102 static surf_action_t storage_action_execute (void *storage, double size, e_surf_action_storage_type_t type)
 103 {
 104   surf_action_storage_t action = NULL;
 105   storage_t STORAGE = storage;
 106
 107   XBT_IN("(%s,%f)", surf_resource_name(STORAGE), size);
 108   action =
 109       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
 110           STORAGE->state_current != SURF_RESOURCE_ON);
 111
 112   // Save the storage on action
 113   action->storage = storage;
 114   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
 115                                                    calloc but it seems to help valgrind... */
 116
 117   GENERIC_LMM_ACTION(action).variable =
 118       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
 119
 120   // Must be less than the max bandwidth for all actions
 121   lmm_expand(storage_maxmin_system, STORAGE->constraint,
 122              GENERIC_LMM_ACTION(action).variable, 1.0);
 123
 124   switch(type) {
 125   case OPEN:
 126   case CLOSE:
 127   case STAT:
 128     break;
 129   case READ:
 130     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
 131                GENERIC_LMM_ACTION(action).variable, 1.0);
 132     break;
 133   case WRITE:
 134     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
 135                GENERIC_LMM_ACTION(action).variable, 1.0);
 136     xbt_dynar_push(((storage_t)storage)->write_actions,&action);
 137
 138     break;
 139   }
 140   action->type = type;
 141   XBT_OUT();
 142   return (surf_action_t) action;
 143 }
 144
 145 static void* storage_create_resource(const char* id, const char* model,const char* type_id,const char* content_name)
 146 {
 147   storage_t storage = NULL;
 148
 149   xbt_assert(!surf_storage_resource_by_name(id),
 150               "Storage '%s' declared several times in the platform file",
 151               id);
 152   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
 153           surf_storage_model, id,NULL);
 154
 155   storage->state_current = SURF_RESOURCE_ON;
 156   storage->used_size = 0;
 157   storage->size = 0;
 158   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
 159
 160   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 161   double Bread  = atof(xbt_dict_get(storage_type->properties,"Bread"));
 162   double Bwrite = atof(xbt_dict_get(storage_type->properties,"Bwrite"));
 163   double Bconnection   = atof(xbt_dict_get(storage_type->properties,"Bconnection"));
 164   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%ld'",Bconnection,Bread,Bwrite,storage_type->size);
 165   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
 166   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
 167   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
 168   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
 169   storage->size = storage_type->size;
 170
 171   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 172
 173   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' \n\t\tmodel '%s' \n\t\tproperties '%p'\n\t\tBread '%f'\n",
 174       id,
 175       model,
 176       type_id,
 177       storage_type->properties,
 178       Bread);
 179
 180   if(!storage_list) storage_list=xbt_dynar_new(sizeof(char *),free);
 181   xbt_dynar_push(storage_list,&storage);
 182
 183   return storage;
 184 }
 185
 186 static void storage_finalize(void)
 187 {
 188   lmm_system_free(storage_maxmin_system);
 189   storage_maxmin_system = NULL;
 190
 191   surf_model_exit(surf_storage_model);
 192   surf_storage_model = NULL;
 193
 194   xbt_swag_free
 195       (storage_running_action_set_that_does_not_need_being_checked);
 196   storage_running_action_set_that_does_not_need_being_checked = NULL;
 197 }
 198
 199 static void storage_update_actions_state(double now, double delta)
 200 {
 201   surf_action_storage_t action = NULL;
 202   surf_action_storage_t next_action = NULL;
 203   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
 204
 205   // Update the disk usage
 206   // Update the file size
 207   // Foreach action of type write
 208   xbt_swag_foreach_safe(action, next_action, running_actions) {
 209     if(action->type == WRITE)
 210     {
 211       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 212       ((storage_t)(action->storage))->used_size += delta * rate; // disk usage
 213       ((surf_action_t)action)->file->content->stat.size += delta * rate; // file size
 214     }
 215   }
 216
 217   xbt_swag_foreach_safe(action, next_action, running_actions) {
 218
 219     double_update(&(GENERIC_ACTION(action).remains),
 220                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
 221
 222     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
 223       double_update(&(GENERIC_ACTION(action).max_duration), delta);
 224
 225     if(GENERIC_ACTION(action).remains > 0 &&
 226         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
 227         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
 228     {
 229       GENERIC_ACTION(action).finish = surf_get_clock();
 230       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 231     } else if ((GENERIC_ACTION(action).remains <= 0) &&
 232         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
 233     {
 234       GENERIC_ACTION(action).finish = surf_get_clock();
 235       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 236     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
 237                (GENERIC_ACTION(action).max_duration <= 0))
 238     {
 239       GENERIC_ACTION(action).finish = surf_get_clock();
 240       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 241     }
 242   }
 243
 244   return;
 245 }
 246
 247 static double storage_share_resources(double NOW)
 248 {
 249   XBT_DEBUG("storage_share_resources %f",NOW);
 250   s_surf_action_storage_t action;
 251   unsigned int i,j;
 252   storage_t storage;
 253   surf_action_storage_t write_action;
 254
 255   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
 256       xbt_swag_offset(action, generic_lmm_action.variable),
 257       storage_maxmin_system, lmm_solve);
 258
 259   double rate;
 260   // Foreach disk
 261   xbt_dynar_foreach(storage_list,i,storage)
 262   {
 263     rate = 0;
 264     // Foreach write action on disk
 265     xbt_dynar_foreach(storage->write_actions,j,write_action)
 266     {
 267       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
 268     }
 269     if(rate > 0)
 270       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
 271   }
 272
 273   return min_completion;
 274 }
 275
 276 static int storage_resource_used(void *resource_id)
 277 {
 278   THROW_UNIMPLEMENTED;
 279   return 0;
 280 }
 281
 282 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
 283                                  double value, double time)
 284 {
 285   THROW_UNIMPLEMENTED;
 286 }
 287
 288 static int storage_action_unref(surf_action_t action)
 289 {
 290   action->refcount--;
 291   if (!action->refcount) {
 292     xbt_swag_remove(action, action->state_set);
 293     if (((surf_action_lmm_t) action)->variable)
 294       lmm_variable_free(storage_maxmin_system,
 295                         ((surf_action_lmm_t) action)->variable);
 296 #ifdef HAVE_TRACING
 297     xbt_free(action->category);
 298 #endif
 299     surf_action_free(&action);
 300     return 1;
 301   }
 302   return 0;
 303 }
 304
 305 static void storage_action_cancel(surf_action_t action)
 306 {
 307   surf_action_state_set(action, SURF_ACTION_FAILED);
 308   return;
 309 }
 310
 311 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
 312 {
 313   surf_action_state_set(action, state);
 314   return;
 315 }
 316
 317 static void storage_action_suspend(surf_action_t action)
 318 {
 319   XBT_IN("(%p)", action);
 320   if (((surf_action_lmm_t) action)->suspended != 2) {
 321     lmm_update_variable_weight(storage_maxmin_system,
 322                                ((surf_action_lmm_t) action)->variable,
 323                                0.0);
 324     ((surf_action_lmm_t) action)->suspended = 1;
 325   }
 326   XBT_OUT();
 327 }
 328
 329 static void storage_action_resume(surf_action_t action)
 330 {
 331   THROW_UNIMPLEMENTED;
 332 }
 333
 334 static int storage_action_is_suspended(surf_action_t action)
 335 {
 336   return (((surf_action_lmm_t) action)->suspended == 1);
 337 }
 338
 339 static void storage_action_set_max_duration(surf_action_t action, double duration)
 340 {
 341   THROW_UNIMPLEMENTED;
 342 }
 343
 344 static void storage_action_set_priority(surf_action_t action, double priority)
 345 {
 346   THROW_UNIMPLEMENTED;
 347 }
 348
 349 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
 350 {
 351   void* stype = xbt_lib_get_or_null(storage_type_lib,
 352                                     storage->type_id,
 353                                     ROUTING_STORAGE_TYPE_LEVEL);
 354   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 355
 356   // if storage content is not specified use the content of storage_type if exist
 357   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 358     storage->content = ((storage_type_t) stype)->content;
 359     XBT_DEBUG("For disk '%s' content is empty, use the content of storage type '%s'",storage->id,((storage_type_t) stype)->type_id);
 360   }
 361
 362   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' \n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tproperties '%p'\n",
 363       storage->id,
 364       ((storage_type_t) stype)->model,
 365       ((storage_type_t) stype)->type_id,
 366       storage->content,
 367       ((storage_type_t) stype)->properties);
 368
 369   storage_create_resource(storage->id,
 370      ((storage_type_t) stype)->model,
 371      ((storage_type_t) stype)->type_id,
 372      storage->content);
 373 }
 374
 375 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
 376 {
 377   XBT_DEBUG("parse_mstorage_init");
 378 }
 379
 380 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
 381 {
 382   XBT_DEBUG("parse_storage_type_init");
 383 }
 384
 385 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
 386 {
 387   XBT_DEBUG("parse_mount_init");
 388 }
 389
 390 static void storage_define_callbacks()
 391 {
 392   sg_platf_storage_add_cb(parse_storage_init);
 393   sg_platf_storage_type_add_cb(parse_storage_type_init);
 394   sg_platf_mstorage_add_cb(parse_mstorage_init);
 395   sg_platf_mount_add_cb(parse_mount_init);
 396 }
 397
 398 static void surf_storage_model_init_internal(void)
 399 {
 400   s_surf_action_t action;
 401
 402   XBT_DEBUG("surf_storage_model_init_internal");
 403   surf_storage_model = surf_model_init();
 404
 405   storage_running_action_set_that_does_not_need_being_checked =
 406       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 407
 408   surf_storage_model->name = "Storage";
 409   surf_storage_model->action_unref = storage_action_unref;
 410   surf_storage_model->action_cancel = storage_action_cancel;
 411   surf_storage_model->action_state_set = storage_action_state_set;
 412
 413   surf_storage_model->model_private->finalize = storage_finalize;
 414   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
 415   surf_storage_model->model_private->share_resources = storage_share_resources;
 416   surf_storage_model->model_private->resource_used = storage_resource_used;
 417   surf_storage_model->model_private->update_resource_state = storage_resources_state;
 418
 419   surf_storage_model->suspend = storage_action_suspend;
 420   surf_storage_model->resume = storage_action_resume;
 421   surf_storage_model->is_suspended = storage_action_is_suspended;
 422   surf_storage_model->set_max_duration = storage_action_set_max_duration;
 423   surf_storage_model->set_priority = storage_action_set_priority;
 424
 425   surf_storage_model->extension.storage.open = storage_action_open;
 426   surf_storage_model->extension.storage.close = storage_action_close;
 427   surf_storage_model->extension.storage.read = storage_action_read;
 428   surf_storage_model->extension.storage.write = storage_action_write;
 429   surf_storage_model->extension.storage.stat = storage_action_stat;
 430   surf_storage_model->extension.storage.create_resource = storage_create_resource;
 431
 432   if (!storage_maxmin_system) {
 433     storage_maxmin_system = lmm_system_new(storage_selective_update);
 434   }
 435
 436 }
 437
 438 void surf_storage_model_init_default(void)
 439 {
 440   surf_storage_model_init_internal();
 441   storage_define_callbacks();
 442
 443   xbt_dynar_push(model_list, &surf_storage_model);
 444 }
 445
 446 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
 447 {
 448   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 449                "Reading a storage, processing unit \"%s\" already exists", storage->id);
 450
 451   // Verification of an existing type_id
 452 #ifndef NDEBUG
 453   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 454 #endif
 455   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 456
 457   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 458       storage->id,
 459       storage->type_id,
 460       storage->content);
 461
 462   xbt_lib_set(storage_lib,
 463       storage->id,
 464       ROUTING_STORAGE_LEVEL,
 465       (void *) xbt_strdup(storage->type_id));
 466 }
 467
 468 static void free_storage_content(void *p)
 469 {
 470   surf_stat_t content = p;
 471   free(content->stat.date);
 472   free(content->stat.group);
 473   free(content->stat.time);
 474   free(content->stat.user);
 475   free(content->stat.user_rights);
 476   free(content);
 477 }
 478
 479 static xbt_dict_t parse_storage_content(char *filename, unsigned long *used_size)
 480 {
 481   *used_size = 0;
 482   if ((!filename) || (strcmp(filename, "") == 0))
 483     return NULL;
 484
 485   xbt_dict_t parse_content = xbt_dict_new_homogeneous(free_storage_content);
 486   FILE *file = NULL;
 487
 488   file = surf_fopen(filename, "r");
 489   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
 490               xbt_str_join(surf_path, ":"));
 491
 492   char *line = NULL;
 493   size_t len = 0;
 494   ssize_t read;
 495   char user_rights[12];
 496   char user[100];
 497   char group[100];
 498   char date[12];
 499   char time[12];
 500   char path[1024];
 501   int nb;
 502   unsigned long size;
 503
 504   surf_stat_t content;
 505
 506   while ((read = getline(&line, &len, file)) != -1) {
 507     content = xbt_new0(s_surf_stat_t,1);
 508     if(sscanf(line,"%s %d %s %s %ld %s %s %s",user_rights,&nb,user,group,&size,date,time,path)==8) {
 509       content->stat.date = xbt_strdup(date);
 510       content->stat.group = xbt_strdup(group);
 511       content->stat.size = size;
 512       content->stat.time = xbt_strdup(time);
 513       content->stat.user = xbt_strdup(user);
 514       content->stat.user_rights = xbt_strdup(user_rights);
 515       *used_size += content->stat.size;
 516       xbt_dict_set(parse_content,path,content,NULL);
 517     } else {
 518       xbt_die("Be sure of passing a good format for content file.\n");
 519       // You can generate this kind of file with command line:
 520       // find /path/you/want -type f -exec ls -l {} \; 2>/dev/null > ./content.txt
 521     }
 522   }
 523   if (line)
 524       free(line);
 525   fclose(file);
 526   return parse_content;
 527 }
 528
 529 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
 530 {
 531   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 532                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 533
 534   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 535   stype->model = xbt_strdup(storage_type->model);
 536   stype->properties = storage_type->properties;
 537   stype->content = xbt_strdup(storage_type->content);
 538   stype->type_id = xbt_strdup(storage_type->id);
 539   stype->size = storage_type->size * 1000000000; /* storage_type->size is in Gbytes and stype->sizeis in bytes */
 540
 541   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s' content '%s'",
 542       stype->type_id,
 543       stype->model,
 544       storage_type->content);
 545
 546   xbt_lib_set(storage_type_lib,
 547       stype->type_id,
 548       ROUTING_STORAGE_TYPE_LEVEL,
 549       (void *) stype);
 550 }
 551 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 552 {
 553   THROW_UNIMPLEMENTED;
 554 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 555 //  mnt->id = xbt_strdup(mstorage->type_id);
 556 //  mnt->name = xbt_strdup(mstorage->name);
 557 //
 558 //  if(!mount_list){
 559 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 560 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 561 //  }
 562 //  xbt_dynar_push(mount_list,(void *) mnt);
 563 //  free(mnt->id);
 564 //  free(mnt->name);
 565 //  xbt_free(mnt);
 566 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 567 }
 568
 569 static void mount_free(void *p)
 570 {
 571   mount_t mnt = p;
 572   xbt_free(mnt->name);
 573 }
 574
 575 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
 576 {
 577   // Verification of an existing storage
 578 #ifndef NDEBUG
 579   void* storage = xbt_lib_get_or_null(storage_lib, mount->id,ROUTING_STORAGE_LEVEL);
 580 #endif
 581   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->id);
 582
 583   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->id, mount->name);
 584
 585   s_mount_t mnt;
 586   mnt.id = surf_storage_resource_by_name(mount->id);
 587   mnt.name = xbt_strdup(mount->name);
 588
 589   if(!mount_list){
 590     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 591     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 592   }
 593   xbt_dynar_push(mount_list,&mnt);
 594 }
 595
 596 static XBT_INLINE void routing_storage_type_free(void *r)
 597 {
 598   storage_type_t stype = r;
 599   free(stype->model);
 600   free(stype->type_id);
 601   free(stype->content);
 602   xbt_dict_free(&(stype->properties));
 603   free(stype);
 604 }
 605
 606 static XBT_INLINE void surf_storage_resource_free(void *r)
 607 {
 608   // specific to storage
 609   storage_t storage = r;
 610   xbt_dict_free(&storage->content);
 611   // generic resource
 612   surf_resource_free(r);
 613 }
 614
 615 static XBT_INLINE void routing_storage_host_free(void *r)
 616 {
 617   xbt_dynar_t dyn = r;
 618   xbt_dynar_free(&dyn);
 619 }
 620
 621 void storage_register_callbacks() {
 622
 623   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
 624   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
 625   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
 626   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
 627
 628   sg_platf_storage_add_cb(storage_parse_storage);
 629   sg_platf_mstorage_add_cb(storage_parse_mstorage);
 630   sg_platf_storage_type_add_cb(storage_parse_storage_type);
 631   sg_platf_mount_add_cb(storage_parse_mount);
 632 }