src/surf/storage.c

   1 /* Copyright (c) 2004 - 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 "xbt/ex.h"
   8 #include "xbt/dict.h"
   9 #include "portable.h"
  10 #include "surf_private.h"
  11 #include "storage_private.h"
  12 #include "surf/surf_resource.h"
  13
  14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf,
  15                                 "Logging specific to the SURF storage module");
  16
  17 xbt_lib_t storage_lib;
  18 int ROUTING_STORAGE_LEVEL;      //Routing for storagelevel
  19 int ROUTING_STORAGE_HOST_LEVEL;
  20 int SURF_STORAGE_LEVEL;
  21 xbt_lib_t storage_type_lib;
  22 int ROUTING_STORAGE_TYPE_LEVEL; //Routing for storage_type level
  23
  24 xbt_dynar_t mount_list = NULL;  /* temporary store of current mount storage */
  25
  26 surf_model_t surf_storage_model = NULL;
  27 lmm_system_t storage_maxmin_system = NULL;
  28 static int storage_selective_update = 0;
  29 static xbt_swag_t
  30     storage_running_action_set_that_does_not_need_being_checked = NULL;
  31
  32 static xbt_dynar_t storage_list;
  33
  34 #define GENERIC_LMM_ACTION(action) action->generic_lmm_action
  35 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
  36
  37 static xbt_dict_t parse_storage_content(char *filename, size_t *used_size);
  38 static int storage_action_unref(surf_action_t action);
  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_ls(void *storage, const char* path)
  43 {
  44   surf_action_t action = storage_action_execute(storage,0, LS);
  45   action->ls_dict = NULL;
  46   xbt_dict_t ls_dict = xbt_dict_new();
  47
  48   char* key;
  49   size_t size = 0;
  50   xbt_dict_cursor_t cursor = NULL;
  51
  52   xbt_dynar_t dyn = NULL;
  53   char* file = NULL;
  54
  55   // for each file in the storage content
  56   xbt_dict_foreach(((storage_t)storage)->content,cursor,key,size){
  57     // Search if file start with the prefix 'path'
  58     if(xbt_str_start_with(key,path)){
  59       file = &key[strlen(path)];
  60
  61       // Split file with '/'
  62       dyn = xbt_str_split(file,"/");
  63       file = xbt_dynar_get_as(dyn,0,char*);
  64
  65       // file
  66       if(xbt_dynar_length(dyn) == 1){
  67         xbt_dict_set(ls_dict,file,&size,NULL);
  68       }
  69       // Directory
  70       else
  71       {
  72         // if directory does not exist yet in the dictionary
  73         if(!xbt_dict_get_or_null(ls_dict,file))
  74           xbt_dict_set(ls_dict,file,NULL,NULL);
  75       }
  76       xbt_dynar_free(&dyn);
  77     }
  78   }
  79
  80   action->ls_dict = ls_dict;
  81   return action;
  82 }
  83
  84 static surf_action_t storage_action_open(void *storage, const char* mount,
  85                                          const char* path)
  86 {
  87   XBT_DEBUG("\tOpen file '%s'",path);
  88   xbt_dict_t content_dict = ((storage_t)storage)->content;
  89   size_t size = (size_t) xbt_dict_get_or_null(content_dict,path);
  90   // if file does not exist create an empty file
  91   if(!size){
  92     xbt_dict_set(content_dict,path,&size,NULL);
  93     XBT_DEBUG("File '%s' was not found, file created.",path);
  94   }
  95   surf_file_t file = xbt_new0(s_surf_file_t,1);
  96   file->name = xbt_strdup(path);
  97   file->size = size;
  98   file->storage = xbt_strdup(mount);
  99
 100   surf_action_t action = storage_action_execute(storage,0, OPEN);
 101   action->file = (void *)file;
 102   return action;
 103 }
 104
 105 static surf_action_t storage_action_close(void *storage, surf_file_t fd)
 106 {
 107   char *filename = fd->name;
 108   XBT_DEBUG("\tClose file '%s' size '%zu'",filename,fd->size);
 109   // unref write actions from storage
 110   surf_action_storage_t write_action;
 111   unsigned int i;
 112   xbt_dynar_foreach(((storage_t)storage)->write_actions,i,write_action) {
 113     if ((write_action->generic_lmm_action.generic_action.file) == fd) {
 114       xbt_dynar_cursor_rm(((storage_t)storage)->write_actions, &i);
 115       storage_action_unref((surf_action_t) write_action);
 116     }
 117   }
 118
 119   free(fd->name);
 120   free(fd->storage);
 121   xbt_free(fd);
 122   surf_action_t action = storage_action_execute(storage,0, CLOSE);
 123   return action;
 124 }
 125
 126 static surf_action_t storage_action_read(void *storage, void* ptr,
 127                                          size_t size, surf_file_t fd)
 128 {
 129   if(size > fd->size)
 130     size = fd->size;
 131   surf_action_t action = storage_action_execute(storage,size,READ);
 132   return action;
 133 }
 134
 135 static surf_action_t storage_action_write(void *storage, const void* ptr,
 136                                           size_t size, surf_file_t fd)
 137 {
 138   char *filename = fd->name;
 139   XBT_DEBUG("\tWrite file '%s' size '%zu/%zu'",filename,size,fd->size);
 140
 141   surf_action_t action = storage_action_execute(storage,size,WRITE);
 142   action->file = fd;
 143
 144   // If the storage is full
 145   if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
 146     storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 147   }
 148   return action;
 149 }
 150
 151 static surf_action_t storage_action_execute (void *storage, double size, e_surf_action_storage_type_t type)
 152 {
 153   surf_action_storage_t action = NULL;
 154   storage_t STORAGE = storage;
 155
 156   XBT_IN("(%s,%f", surf_resource_name(STORAGE), size);
 157   action =
 158       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
 159           STORAGE->state_current != SURF_RESOURCE_ON);
 160
 161   // Save the storage on action
 162   action->storage = storage;
 163   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
 164                                                    calloc but it seems to help valgrind... */
 165
 166   GENERIC_LMM_ACTION(action).variable =
 167       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
 168
 169   // Must be less than the max bandwidth for all actions
 170   lmm_expand(storage_maxmin_system, STORAGE->constraint,
 171              GENERIC_LMM_ACTION(action).variable, 1.0);
 172
 173   switch(type) {
 174   case OPEN:
 175   case CLOSE:
 176   case STAT:
 177   case LS:
 178     break;
 179   case READ:
 180     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
 181                GENERIC_LMM_ACTION(action).variable, 1.0);
 182     break;
 183   case WRITE:
 184     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
 185                GENERIC_LMM_ACTION(action).variable, 1.0);
 186     xbt_dynar_push(((storage_t)storage)->write_actions,&action);
 187     surf_action_ref((surf_action_t) action);
 188     break;
 189   }
 190   action->type = type;
 191   XBT_OUT();
 192   return (surf_action_t) action;
 193 }
 194
 195 static void* storage_create_resource(const char* id, const char* model,const char* type_id,const char* content_name)
 196 {
 197   storage_t storage = NULL;
 198
 199   xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
 200               "Storage '%s' declared several times in the platform file",
 201               id);
 202   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
 203           surf_storage_model, id,NULL);
 204
 205   storage->state_current = SURF_RESOURCE_ON;
 206   storage->used_size = 0;
 207   storage->size = 0;
 208   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
 209
 210   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 211   double Bread  = atof(xbt_dict_get(storage_type->properties,"Bread"));
 212   double Bwrite = atof(xbt_dict_get(storage_type->properties,"Bwrite"));
 213   double Bconnection   = atof(xbt_dict_get(storage_type->properties,"Bconnection"));
 214   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%lu'",Bconnection,Bread,Bwrite,(unsigned long)storage_type->size);
 215   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
 216   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
 217   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
 218   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
 219   storage->size = storage_type->size;
 220
 221   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 222
 223   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",
 224       id,
 225       model,
 226       type_id,
 227       storage_type->properties,
 228       Bread);
 229
 230   if(!storage_list) storage_list=xbt_dynar_new(sizeof(char *),NULL);
 231   xbt_dynar_push(storage_list,&storage);
 232
 233   return storage;
 234 }
 235
 236 static void storage_finalize(void)
 237 {
 238   lmm_system_free(storage_maxmin_system);
 239   storage_maxmin_system = NULL;
 240
 241   surf_model_exit(surf_storage_model);
 242   surf_storage_model = NULL;
 243
 244   xbt_dynar_free(&storage_list);
 245
 246   xbt_swag_free
 247       (storage_running_action_set_that_does_not_need_being_checked);
 248   storage_running_action_set_that_does_not_need_being_checked = NULL;
 249 }
 250
 251 static void storage_update_actions_state(double now, double delta)
 252 {
 253   surf_action_storage_t action = NULL;
 254   surf_action_storage_t next_action = NULL;
 255   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
 256
 257   // Update the disk usage
 258   // Update the file size
 259   // For each action of type write
 260   xbt_swag_foreach_safe(action, next_action, running_actions) {
 261     if(action->type == WRITE)
 262     {
 263       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 264       ((storage_t)(action->storage))->used_size += delta * rate; // disk usage
 265       ((surf_action_t)action)->file->size += delta * rate; // file size
 266     }
 267   }
 268
 269   xbt_swag_foreach_safe(action, next_action, running_actions) {
 270
 271     double_update(&(GENERIC_ACTION(action).remains),
 272                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
 273
 274     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
 275       double_update(&(GENERIC_ACTION(action).max_duration), delta);
 276
 277     if(GENERIC_ACTION(action).remains > 0 &&
 278         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
 279         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
 280     {
 281       GENERIC_ACTION(action).finish = surf_get_clock();
 282       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 283     } else if ((GENERIC_ACTION(action).remains <= 0) &&
 284         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
 285     {
 286       GENERIC_ACTION(action).finish = surf_get_clock();
 287       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 288     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
 289                (GENERIC_ACTION(action).max_duration <= 0))
 290     {
 291       GENERIC_ACTION(action).finish = surf_get_clock();
 292       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 293     }
 294   }
 295
 296   return;
 297 }
 298
 299 static double storage_share_resources(double NOW)
 300 {
 301   XBT_DEBUG("storage_share_resources %f",NOW);
 302   s_surf_action_storage_t action;
 303   unsigned int i,j;
 304   storage_t storage;
 305   surf_action_storage_t write_action;
 306
 307   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
 308       xbt_swag_offset(action, generic_lmm_action.variable),
 309       storage_maxmin_system, lmm_solve);
 310
 311   double rate;
 312   // Foreach disk
 313   xbt_dynar_foreach(storage_list,i,storage)
 314   {
 315     rate = 0;
 316     // Foreach write action on disk
 317     xbt_dynar_foreach(storage->write_actions,j,write_action)
 318     {
 319       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
 320     }
 321     if(rate > 0)
 322       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
 323   }
 324
 325   return min_completion;
 326 }
 327
 328 static int storage_resource_used(void *resource_id)
 329 {
 330   THROW_UNIMPLEMENTED;
 331   return 0;
 332 }
 333
 334 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
 335                                  double value, double time)
 336 {
 337   THROW_UNIMPLEMENTED;
 338 }
 339
 340 static int storage_action_unref(surf_action_t action)
 341 {
 342   action->refcount--;
 343   if (!action->refcount) {
 344     xbt_swag_remove(action, action->state_set);
 345     if (((surf_action_lmm_t) action)->variable)
 346       lmm_variable_free(storage_maxmin_system,
 347                         ((surf_action_lmm_t) action)->variable);
 348 #ifdef HAVE_TRACING
 349     xbt_free(action->category);
 350 #endif
 351     surf_action_free(&action);
 352     return 1;
 353   }
 354   return 0;
 355 }
 356
 357 static void storage_action_cancel(surf_action_t action)
 358 {
 359   surf_action_state_set(action, SURF_ACTION_FAILED);
 360   return;
 361 }
 362
 363 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
 364 {
 365   surf_action_state_set(action, state);
 366   return;
 367 }
 368
 369 static void storage_action_suspend(surf_action_t action)
 370 {
 371   XBT_IN("(%p)", action);
 372   if (((surf_action_lmm_t) action)->suspended != 2) {
 373     lmm_update_variable_weight(storage_maxmin_system,
 374                                ((surf_action_lmm_t) action)->variable,
 375                                0.0);
 376     ((surf_action_lmm_t) action)->suspended = 1;
 377   }
 378   XBT_OUT();
 379 }
 380
 381 static void storage_action_resume(surf_action_t action)
 382 {
 383   THROW_UNIMPLEMENTED;
 384 }
 385
 386 static int storage_action_is_suspended(surf_action_t action)
 387 {
 388   return (((surf_action_lmm_t) action)->suspended == 1);
 389 }
 390
 391 static void storage_action_set_max_duration(surf_action_t action, double duration)
 392 {
 393   THROW_UNIMPLEMENTED;
 394 }
 395
 396 static void storage_action_set_priority(surf_action_t action, double priority)
 397 {
 398   THROW_UNIMPLEMENTED;
 399 }
 400
 401 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
 402 {
 403   void* stype = xbt_lib_get_or_null(storage_type_lib,
 404                                     storage->type_id,
 405                                     ROUTING_STORAGE_TYPE_LEVEL);
 406   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 407
 408   // if storage content is not specified use the content of storage_type if exist
 409   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 410     storage->content = ((storage_type_t) stype)->content;
 411     XBT_DEBUG("For disk '%s' content is empty, use the content of storage type '%s'",storage->id,((storage_type_t) stype)->type_id);
 412   }
 413
 414   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",
 415       storage->id,
 416       ((storage_type_t) stype)->model,
 417       ((storage_type_t) stype)->type_id,
 418       storage->content,
 419       ((storage_type_t) stype)->properties);
 420
 421   storage_create_resource(storage->id,
 422      ((storage_type_t) stype)->model,
 423      ((storage_type_t) stype)->type_id,
 424      storage->content);
 425 }
 426
 427 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
 428 {
 429   XBT_DEBUG("parse_mstorage_init");
 430 }
 431
 432 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
 433 {
 434   XBT_DEBUG("parse_storage_type_init");
 435 }
 436
 437 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
 438 {
 439   XBT_DEBUG("parse_mount_init");
 440 }
 441
 442 static void storage_define_callbacks()
 443 {
 444   sg_platf_storage_add_cb(parse_storage_init);
 445   sg_platf_storage_type_add_cb(parse_storage_type_init);
 446   sg_platf_mstorage_add_cb(parse_mstorage_init);
 447   sg_platf_mount_add_cb(parse_mount_init);
 448 }
 449
 450 static void surf_storage_model_init_internal(void)
 451 {
 452   s_surf_action_t action;
 453
 454   XBT_DEBUG("surf_storage_model_init_internal");
 455   surf_storage_model = surf_model_init();
 456
 457   storage_running_action_set_that_does_not_need_being_checked =
 458       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 459
 460   surf_storage_model->name = "Storage";
 461   surf_storage_model->action_unref = storage_action_unref;
 462   surf_storage_model->action_cancel = storage_action_cancel;
 463   surf_storage_model->action_state_set = storage_action_state_set;
 464
 465   surf_storage_model->model_private->finalize = storage_finalize;
 466   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
 467   surf_storage_model->model_private->share_resources = storage_share_resources;
 468   surf_storage_model->model_private->resource_used = storage_resource_used;
 469   surf_storage_model->model_private->update_resource_state = storage_resources_state;
 470
 471   surf_storage_model->suspend = storage_action_suspend;
 472   surf_storage_model->resume = storage_action_resume;
 473   surf_storage_model->is_suspended = storage_action_is_suspended;
 474   surf_storage_model->set_max_duration = storage_action_set_max_duration;
 475   surf_storage_model->set_priority = storage_action_set_priority;
 476
 477   surf_storage_model->extension.storage.open = storage_action_open;
 478   surf_storage_model->extension.storage.close = storage_action_close;
 479   surf_storage_model->extension.storage.read = storage_action_read;
 480   surf_storage_model->extension.storage.write = storage_action_write;
 481   surf_storage_model->extension.storage.ls = storage_action_ls;
 482
 483   if (!storage_maxmin_system) {
 484     storage_maxmin_system = lmm_system_new(storage_selective_update);
 485   }
 486
 487 }
 488
 489 void surf_storage_model_init_default(void)
 490 {
 491   surf_storage_model_init_internal();
 492   storage_define_callbacks();
 493
 494   xbt_dynar_push(model_list, &surf_storage_model);
 495 }
 496
 497 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
 498 {
 499   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 500                "Reading a storage, processing unit \"%s\" already exists", storage->id);
 501
 502   // Verification of an existing type_id
 503 #ifndef NDEBUG
 504   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 505 #endif
 506   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 507
 508   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 509       storage->id,
 510       storage->type_id,
 511       storage->content);
 512
 513   xbt_lib_set(storage_lib,
 514       storage->id,
 515       ROUTING_STORAGE_LEVEL,
 516       (void *) xbt_strdup(storage->type_id));
 517 }
 518
 519 static xbt_dict_t parse_storage_content(char *filename, size_t *used_size)
 520 {
 521   *used_size = 0;
 522   if ((!filename) || (strcmp(filename, "") == 0))
 523     return NULL;
 524
 525   xbt_dict_t parse_content = xbt_dict_new_homogeneous(NULL);
 526   FILE *file = NULL;
 527
 528   file = surf_fopen(filename, "r");
 529   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
 530               xbt_str_join(surf_path, ":"));
 531
 532   char *line = NULL;
 533   size_t len = 0;
 534   ssize_t read;
 535   char path[1024];
 536   size_t size;
 537
 538
 539   while ((read = xbt_getline(&line, &len, file)) != -1) {
 540     if (read){
 541     if(sscanf(line,"%s %zu",path, &size)==2) {
 542         *used_size += size;
 543         xbt_dict_set(parse_content,path,(void*) size,NULL);
 544       } else {
 545         xbt_die("Be sure of passing a good format for content file.\n");
 546       }
 547     }
 548   }
 549   free(line);
 550   fclose(file);
 551   return parse_content;
 552 }
 553
 554 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
 555 {
 556   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 557                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 558
 559   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 560   stype->model = xbt_strdup(storage_type->model);
 561   stype->properties = storage_type->properties;
 562   stype->content = xbt_strdup(storage_type->content);
 563   stype->type_id = xbt_strdup(storage_type->id);
 564   stype->size = storage_type->size * 1000000000; /* storage_type->size is in Gbytes and stype->sizeis in bytes */
 565
 566   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s' content '%s'",
 567       stype->type_id,
 568       stype->model,
 569       storage_type->content);
 570
 571   xbt_lib_set(storage_type_lib,
 572       stype->type_id,
 573       ROUTING_STORAGE_TYPE_LEVEL,
 574       (void *) stype);
 575 }
 576 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 577 {
 578   THROW_UNIMPLEMENTED;
 579 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 580 //  mnt->id = xbt_strdup(mstorage->type_id);
 581 //  mnt->name = xbt_strdup(mstorage->name);
 582 //
 583 //  if(!mount_list){
 584 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 585 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 586 //  }
 587 //  xbt_dynar_push(mount_list,(void *) mnt);
 588 //  free(mnt->id);
 589 //  free(mnt->name);
 590 //  xbt_free(mnt);
 591 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 592 }
 593
 594 static void mount_free(void *p)
 595 {
 596   mount_t mnt = p;
 597   xbt_free(mnt->name);
 598 }
 599
 600 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
 601 {
 602   // Verification of an existing storage
 603 #ifndef NDEBUG
 604   void* storage = xbt_lib_get_or_null(storage_lib, mount->id,ROUTING_STORAGE_LEVEL);
 605 #endif
 606   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->id);
 607
 608   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->id, mount->name);
 609
 610   s_mount_t mnt;
 611   mnt.id = surf_storage_resource_priv(surf_storage_resource_by_name(mount->id));
 612   mnt.name = xbt_strdup(mount->name);
 613
 614   if(!mount_list){
 615     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 616     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 617   }
 618   xbt_dynar_push(mount_list,&mnt);
 619 }
 620
 621 static XBT_INLINE void routing_storage_type_free(void *r)
 622 {
 623   storage_type_t stype = r;
 624   free(stype->model);
 625   free(stype->type_id);
 626   free(stype->content);
 627   xbt_dict_free(&(stype->properties));
 628   free(stype);
 629 }
 630
 631 static XBT_INLINE void surf_storage_resource_free(void *r)
 632 {
 633   // specific to storage
 634   storage_t storage = r;
 635   xbt_dict_free(&storage->content);
 636   xbt_dynar_free(&storage->write_actions);
 637   // generic resource
 638   surf_resource_free(r);
 639 }
 640
 641 static XBT_INLINE void routing_storage_host_free(void *r)
 642 {
 643   xbt_dynar_t dyn = r;
 644   xbt_dynar_free(&dyn);
 645 }
 646
 647 void storage_register_callbacks() {
 648
 649   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
 650   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
 651   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
 652   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
 653
 654   sg_platf_storage_add_cb(storage_parse_storage);
 655   sg_platf_mstorage_add_cb(storage_parse_mstorage);
 656   sg_platf_storage_type_add_cb(storage_parse_storage_type);
 657   sg_platf_mount_add_cb(storage_parse_mount);
 658 }