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 #include <inttypes.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, sg_storage_size_t *used_size);
  39 static int storage_action_unref(surf_action_t action);
  40 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state);
  41 static surf_action_t storage_action_execute (void *storage, sg_storage_size_t size, e_surf_action_storage_type_t type);
  42
  43 static surf_action_t storage_action_ls(void *storage, const char* path)
  44 {
  45   surf_action_t action = storage_action_execute(storage,0, LS);
  46   action->ls_dict = NULL;
  47   xbt_dict_t ls_dict = xbt_dict_new_homogeneous(NULL);
  48
  49   char* key;
  50   sg_storage_size_t size = 0;
  51   xbt_dict_cursor_t cursor = NULL;
  52
  53   xbt_dynar_t dyn = NULL;
  54   char* file = NULL;
  55
  56   // for each file in the storage content
  57   xbt_dict_foreach(((storage_t)storage)->content,cursor,key,size){
  58     // Search if file start with the prefix 'path'
  59     if(xbt_str_start_with(key,path)){
  60       file = &key[strlen(path)];
  61
  62       // Split file with '/'
  63       dyn = xbt_str_split(file,"/");
  64       file = xbt_dynar_get_as(dyn,0,char*);
  65
  66       // file
  67       if(xbt_dynar_length(dyn) == 1){
  68         xbt_dict_set(ls_dict,file,&size,NULL);
  69       }
  70       // Directory
  71       else
  72       {
  73         // if directory does not exist yet in the dictionary
  74         if(!xbt_dict_get_or_null(ls_dict,file))
  75           xbt_dict_set(ls_dict,file,NULL,NULL);
  76       }
  77       xbt_dynar_free(&dyn);
  78     }
  79   }
  80
  81   action->ls_dict = ls_dict;
  82   return action;
  83 }
  84
  85 static surf_action_t storage_action_open(void *storage, const char* mount,
  86                                          const char* path)
  87 {
  88   XBT_DEBUG("\tOpen file '%s'",path);
  89   xbt_dict_t content_dict = ((storage_t)storage)->content;
  90   sg_storage_size_t size = (sg_storage_size_t) xbt_dict_get_or_null(content_dict,path);
  91
  92   // if file does not exist create an empty file
  93   if(!size){
  94         size = 0;
  95     xbt_dict_set(content_dict,path,&size,NULL);
  96     XBT_DEBUG("File '%s' was not found, file created.",path);
  97   }
  98   surf_file_t file = xbt_new0(s_surf_file_t,1);
  99   file->name = xbt_strdup(path);
 100   file->size = size;
 101   file->mount = xbt_strdup(mount);
 102
 103   surf_action_t action = storage_action_execute(storage,0, OPEN);
 104   action->file = (void *)file;
 105   return action;
 106 }
 107
 108 static surf_action_t storage_action_close(void *storage, surf_file_t fd)
 109 {
 110   char *filename = fd->name;
 111   XBT_DEBUG("\tClose file '%s' size '%" PRIu64 "'", filename, fd->size);
 112   // unref write actions from storage
 113   surf_action_storage_t write_action;
 114   unsigned int i;
 115   xbt_dynar_foreach(((storage_t)storage)->write_actions,i,write_action) {
 116     if ((write_action->generic_lmm_action.generic_action.file) == fd) {
 117       xbt_dynar_cursor_rm(((storage_t)storage)->write_actions, &i);
 118       storage_action_unref((surf_action_t) write_action);
 119     }
 120   }
 121   free(fd->name);
 122   free(fd->mount);
 123   xbt_free(fd);
 124   surf_action_t action = storage_action_execute(storage,0, CLOSE);
 125   return action;
 126 }
 127
 128 static surf_action_t storage_action_read(void *storage, surf_file_t fd, sg_storage_size_t size)
 129 {
 130   if(size > fd->size)
 131     size = fd->size;
 132   surf_action_t action = storage_action_execute(storage,size,READ);
 133   return action;
 134 }
 135
 136 static surf_action_t storage_action_write(void *storage, surf_file_t fd, sg_storage_size_t size)
 137 {
 138   char *filename = fd->name;
 139   XBT_DEBUG("\tWrite file '%s' size '%" PRIu64 "/%" PRIu64 "'",
 140             filename, size, fd->size);
 141
 142   surf_action_t action = storage_action_execute(storage,size,WRITE);
 143   action->file = fd;
 144
 145   // If the storage is full
 146   if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
 147     storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 148   }
 149   return action;
 150 }
 151
 152 static surf_action_t storage_action_execute (void *storage, sg_storage_size_t size, e_surf_action_storage_type_t type)
 153 {
 154   surf_action_storage_t action = NULL;
 155   storage_t STORAGE = storage;
 156
 157   XBT_IN("(%s,%" PRIu64, surf_resource_name(STORAGE), size);
 158   action =
 159       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
 160           STORAGE->state_current != SURF_RESOURCE_ON);
 161
 162   // Save the storage on action
 163   action->storage = storage;
 164   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
 165                                                    calloc but it seems to help valgrind... */
 166
 167   GENERIC_LMM_ACTION(action).variable =
 168       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
 169
 170   // Must be less than the max bandwidth for all actions
 171   lmm_expand(storage_maxmin_system, STORAGE->constraint,
 172              GENERIC_LMM_ACTION(action).variable, 1.0);
 173
 174   switch(type) {
 175   case OPEN:
 176   case CLOSE:
 177   case STAT:
 178   case LS:
 179     break;
 180   case READ:
 181     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
 182                GENERIC_LMM_ACTION(action).variable, 1.0);
 183     break;
 184   case WRITE:
 185     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
 186                GENERIC_LMM_ACTION(action).variable, 1.0);
 187     xbt_dynar_push(((storage_t)storage)->write_actions,&action);
 188     surf_action_ref((surf_action_t) action);
 189     break;
 190   }
 191   action->type = type;
 192   XBT_OUT();
 193   return (surf_action_t) action;
 194 }
 195
 196 static xbt_dict_t storage_get_properties(const void *storage)
 197 {
 198   return surf_resource_properties(surf_storage_resource_priv(storage));
 199 }
 200
 201 static xbt_dict_t storage_get_content(void *storage)
 202 {
 203   /* For the moment this action has no cost, but in the future we could take in account access latency of the disk */
 204   /*surf_action_t action = storage_action_execute(storage,0, LS);*/
 205
 206   void *storage_resource = surf_storage_resource_priv(storage);
 207   xbt_dict_t content_dict = xbt_dict_new_homogeneous(NULL);
 208   xbt_dict_cursor_t cursor = NULL;
 209   char *file;
 210   char *size;
 211   xbt_dict_foreach(((storage_t)storage_resource)->content, cursor, file, size){
 212     xbt_dict_set(content_dict,file,(void*)size,NULL);
 213   }
 214   return content_dict;
 215 }
 216
 217 static sg_storage_size_t storage_get_size(void *storage){
 218   void *storage_resource = surf_storage_resource_priv(storage);
 219   return ((storage_t)storage_resource)->size;
 220 }
 221
 222 static void* storage_create_resource(const char* id, const char* model,
 223     const char* type_id, const char* content_name, const char* content_type, xbt_dict_t properties){
 224   storage_t storage = NULL;
 225
 226   xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
 227               "Storage '%s' declared several times in the platform file",
 228               id);
 229   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
 230           surf_storage_model, id, properties, NULL);
 231
 232   storage->state_current = SURF_RESOURCE_ON;
 233   storage->used_size = 0;
 234   storage->size = 0;
 235   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
 236
 237   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 238   double Bread =
 239       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bread"));
 240   double Bwrite =
 241       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bwrite"));
 242   double Bconnection =
 243       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,
 244                                             "Bconnection"));
 245   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%lu'",Bconnection,Bread,Bwrite,(unsigned long)storage_type->size);
 246   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
 247   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
 248   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
 249   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
 250   storage->content_type = xbt_strdup(content_type);
 251   storage->size = storage_type->size;
 252   storage->type_id = xbt_strdup(type_id);
 253
 254   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 255
 256   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",
 257       id,
 258       model,
 259       type_id,
 260       storage_type->properties,
 261       Bread);
 262
 263   if (!storage_list)
 264     storage_list = xbt_dynar_new(sizeof(char *),NULL);
 265   xbt_dynar_push(storage_list,&storage);
 266
 267   return storage;
 268 }
 269
 270 static void storage_finalize(void)
 271 {
 272   lmm_system_free(storage_maxmin_system);
 273   storage_maxmin_system = NULL;
 274
 275   surf_model_exit(surf_storage_model);
 276   surf_storage_model = NULL;
 277
 278   xbt_dynar_free(&storage_list);
 279
 280   xbt_swag_free
 281       (storage_running_action_set_that_does_not_need_being_checked);
 282   storage_running_action_set_that_does_not_need_being_checked = NULL;
 283 }
 284
 285 static void storage_update_actions_state(double now, double delta)
 286 {
 287   surf_action_storage_t action = NULL;
 288   surf_action_storage_t next_action = NULL;
 289   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
 290
 291
 292   xbt_swag_foreach_safe(action, next_action, running_actions) {
 293     if(action->type == WRITE)
 294     {
 295       // Update the disk usage
 296       // Update the file size
 297       // Update the storage content (with file size)
 298       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 299       /* Hack to avoid rounding differences between x86 and x86_64
 300        * (note that the next sizes are of type sg_storage_size_t). */
 301       long incr = delta * rate + MAXMIN_PRECISION;
 302       ((storage_t)(action->storage))->used_size += incr; // disk usage
 303       ((surf_action_t)action)->file->size += incr; // file size
 304
 305       xbt_dict_t content_dict = ((storage_t)(action->storage))->content;
 306       xbt_dict_set(content_dict,((surf_action_t)action)->file->name,(void*)(((surf_action_t)action)->file->size),NULL);
 307     }
 308
 309     double_update(&(GENERIC_ACTION(action).remains),
 310                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
 311
 312     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
 313       double_update(&(GENERIC_ACTION(action).max_duration), delta);
 314
 315     if(GENERIC_ACTION(action).remains > 0 &&
 316         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
 317         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
 318     {
 319       GENERIC_ACTION(action).finish = surf_get_clock();
 320       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 321     } else if ((GENERIC_ACTION(action).remains <= 0) &&
 322         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
 323     {
 324       GENERIC_ACTION(action).finish = surf_get_clock();
 325       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 326     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
 327                (GENERIC_ACTION(action).max_duration <= 0))
 328     {
 329       GENERIC_ACTION(action).finish = surf_get_clock();
 330       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 331     }
 332   }
 333
 334   return;
 335 }
 336
 337 static double storage_share_resources(double NOW)
 338 {
 339   XBT_DEBUG("storage_share_resources %f",NOW);
 340   s_surf_action_storage_t action;
 341   unsigned int i,j;
 342   storage_t storage;
 343   surf_action_storage_t write_action;
 344
 345   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
 346       xbt_swag_offset(action, generic_lmm_action.variable),
 347       storage_maxmin_system, lmm_solve);
 348
 349   double rate;
 350   // Foreach disk
 351   xbt_dynar_foreach(storage_list,i,storage)
 352   {
 353     rate = 0;
 354     // Foreach write action on disk
 355     xbt_dynar_foreach(storage->write_actions,j,write_action)
 356     {
 357       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
 358     }
 359     if(rate > 0)
 360       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
 361   }
 362
 363   return min_completion;
 364 }
 365
 366 static int storage_resource_used(void *resource_id)
 367 {
 368   THROW_UNIMPLEMENTED;
 369   return 0;
 370 }
 371
 372 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
 373                                  double value, double time)
 374 {
 375   THROW_UNIMPLEMENTED;
 376 }
 377
 378 static int storage_action_unref(surf_action_t action)
 379 {
 380   action->refcount--;
 381   if (!action->refcount) {
 382     xbt_swag_remove(action, action->state_set);
 383     if (((surf_action_lmm_t) action)->variable)
 384       lmm_variable_free(storage_maxmin_system,
 385                         ((surf_action_lmm_t) action)->variable);
 386 #ifdef HAVE_TRACING
 387     xbt_free(action->category);
 388 #endif
 389     surf_action_free(&action);
 390     return 1;
 391   }
 392   return 0;
 393 }
 394
 395 static void storage_action_cancel(surf_action_t action)
 396 {
 397   surf_action_state_set(action, SURF_ACTION_FAILED);
 398   return;
 399 }
 400
 401 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
 402 {
 403   surf_action_state_set(action, state);
 404   return;
 405 }
 406
 407 static void storage_action_suspend(surf_action_t action)
 408 {
 409   XBT_IN("(%p)", action);
 410   if (((surf_action_lmm_t) action)->suspended != 2) {
 411     lmm_update_variable_weight(storage_maxmin_system,
 412                                ((surf_action_lmm_t) action)->variable,
 413                                0.0);
 414     ((surf_action_lmm_t) action)->suspended = 1;
 415   }
 416   XBT_OUT();
 417 }
 418
 419 static void storage_action_resume(surf_action_t action)
 420 {
 421   THROW_UNIMPLEMENTED;
 422 }
 423
 424 static int storage_action_is_suspended(surf_action_t action)
 425 {
 426   return (((surf_action_lmm_t) action)->suspended == 1);
 427 }
 428
 429 static void storage_action_set_max_duration(surf_action_t action, double duration)
 430 {
 431   THROW_UNIMPLEMENTED;
 432 }
 433
 434 static void storage_action_set_priority(surf_action_t action, double priority)
 435 {
 436   THROW_UNIMPLEMENTED;
 437 }
 438
 439 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
 440 {
 441   void* stype = xbt_lib_get_or_null(storage_type_lib,
 442                                     storage->type_id,
 443                                     ROUTING_STORAGE_TYPE_LEVEL);
 444   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 445
 446   // if storage content is not specified use the content of storage_type if exist
 447   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 448     storage->content = ((storage_type_t) stype)->content;
 449     storage->content_type = ((storage_type_t) stype)->content_type;
 450     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 451         storage->id,((storage_type_t) stype)->content_type,
 452         ((storage_type_t) stype)->type_id);
 453   }
 454
 455   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 456       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 457       "\n\t\tproperties '%p'\n",
 458       storage->id,
 459       ((storage_type_t) stype)->model,
 460       ((storage_type_t) stype)->type_id,
 461       storage->content,
 462       storage->content_type,
 463       ((storage_type_t) stype)->properties);
 464
 465   storage_create_resource(storage->id,
 466      ((storage_type_t) stype)->model,
 467      ((storage_type_t) stype)->type_id,
 468      storage->content,
 469      storage->content_type,
 470      storage->properties);
 471 }
 472
 473 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
 474 {
 475   XBT_DEBUG("parse_mstorage_init");
 476 }
 477
 478 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
 479 {
 480   XBT_DEBUG("parse_storage_type_init");
 481 }
 482
 483 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
 484 {
 485   XBT_DEBUG("parse_mount_init");
 486 }
 487
 488 static void storage_define_callbacks()
 489 {
 490   sg_platf_storage_add_cb(parse_storage_init);
 491   sg_platf_storage_type_add_cb(parse_storage_type_init);
 492   sg_platf_mstorage_add_cb(parse_mstorage_init);
 493   sg_platf_mount_add_cb(parse_mount_init);
 494 }
 495
 496 static void surf_storage_model_init_internal(void)
 497 {
 498   s_surf_action_t action;
 499
 500   XBT_DEBUG("surf_storage_model_init_internal");
 501   surf_storage_model = surf_model_init();
 502
 503   storage_running_action_set_that_does_not_need_being_checked =
 504       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 505
 506   surf_storage_model->name = "Storage";
 507   surf_storage_model->action_unref = storage_action_unref;
 508   surf_storage_model->action_cancel = storage_action_cancel;
 509   surf_storage_model->action_state_set = storage_action_state_set;
 510
 511   surf_storage_model->model_private->finalize = storage_finalize;
 512   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
 513   surf_storage_model->model_private->share_resources = storage_share_resources;
 514   surf_storage_model->model_private->resource_used = storage_resource_used;
 515   surf_storage_model->model_private->update_resource_state = storage_resources_state;
 516
 517   surf_storage_model->suspend = storage_action_suspend;
 518   surf_storage_model->resume = storage_action_resume;
 519   surf_storage_model->is_suspended = storage_action_is_suspended;
 520   surf_storage_model->set_max_duration = storage_action_set_max_duration;
 521   surf_storage_model->set_priority = storage_action_set_priority;
 522
 523   surf_storage_model->extension.storage.open = storage_action_open;
 524   surf_storage_model->extension.storage.close = storage_action_close;
 525   surf_storage_model->extension.storage.read = storage_action_read;
 526   surf_storage_model->extension.storage.write = storage_action_write;
 527   surf_storage_model->extension.storage.ls = storage_action_ls;
 528   surf_storage_model->extension.storage.get_properties = storage_get_properties;
 529   surf_storage_model->extension.storage.get_content = storage_get_content;
 530   surf_storage_model->extension.storage.get_size = storage_get_size;
 531   if (!storage_maxmin_system) {
 532     storage_maxmin_system = lmm_system_new(storage_selective_update);
 533   }
 534 }
 535
 536 void surf_storage_model_init_default(void)
 537 {
 538   surf_storage_model_init_internal();
 539   storage_define_callbacks();
 540
 541   xbt_dynar_push(model_list, &surf_storage_model);
 542 }
 543
 544 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
 545 {
 546   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 547                "Reading a storage, processing unit \"%s\" already exists", storage->id);
 548
 549   // Verification of an existing type_id
 550 #ifndef NDEBUG
 551   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 552 #endif
 553   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 554
 555   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 556       storage->id,
 557       storage->type_id,
 558       storage->content);
 559
 560   xbt_lib_set(storage_lib,
 561       storage->id,
 562       ROUTING_STORAGE_LEVEL,
 563       (void *) xbt_strdup(storage->type_id));
 564 }
 565
 566 static xbt_dict_t parse_storage_content(char *filename, sg_storage_size_t *used_size)
 567 {
 568   *used_size = 0;
 569   if ((!filename) || (strcmp(filename, "") == 0))
 570     return NULL;
 571
 572   xbt_dict_t parse_content = xbt_dict_new_homogeneous(NULL);
 573   FILE *file = NULL;
 574
 575   file = surf_fopen(filename, "r");
 576   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
 577               xbt_str_join(surf_path, ":"));
 578
 579   char *line = NULL;
 580   size_t len = 0;
 581   ssize_t read;
 582   char path[1024];
 583   sg_storage_size_t size;
 584
 585   while ((read = xbt_getline(&line, &len, file)) != -1) {
 586     if (read){
 587     if (sscanf(line,"%s %" SCNu64, path, &size) == 2) {
 588         *used_size += size;
 589         xbt_dict_set(parse_content,path,(void*) size,NULL);
 590       } else {
 591         xbt_die("Be sure of passing a good format for content file.\n");
 592       }
 593     }
 594   }
 595   free(line);
 596   fclose(file);
 597   return parse_content;
 598 }
 599
 600 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
 601 {
 602   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 603                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 604
 605   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 606   stype->model = xbt_strdup(storage_type->model);
 607   stype->properties = storage_type->properties;
 608   stype->content = xbt_strdup(storage_type->content);
 609   stype->content_type = xbt_strdup(storage_type->content_type);
 610   stype->type_id = xbt_strdup(storage_type->id);
 611   stype->size = storage_type->size;
 612
 613   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 614       "content '%s', and content_type '%s'",
 615       stype->type_id,
 616       stype->model,
 617       storage_type->content,
 618       storage_type->content_type);
 619
 620   xbt_lib_set(storage_type_lib,
 621       stype->type_id,
 622       ROUTING_STORAGE_TYPE_LEVEL,
 623       (void *) stype);
 624 }
 625 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 626 {
 627   THROW_UNIMPLEMENTED;
 628 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 629 //  mnt->id = xbt_strdup(mstorage->type_id);
 630 //  mnt->name = xbt_strdup(mstorage->name);
 631 //
 632 //  if(!mount_list){
 633 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 634 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 635 //  }
 636 //  xbt_dynar_push(mount_list,(void *) mnt);
 637 //  free(mnt->id);
 638 //  free(mnt->name);
 639 //  xbt_free(mnt);
 640 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 641 }
 642
 643 static void mount_free(void *p)
 644 {
 645   mount_t mnt = p;
 646   xbt_free(mnt->name);
 647 }
 648
 649 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
 650 {
 651   // Verification of an existing storage
 652 #ifndef NDEBUG
 653   void* storage = xbt_lib_get_or_null(storage_lib, mount->storageId,ROUTING_STORAGE_LEVEL);
 654 #endif
 655   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->storageId);
 656
 657   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 658
 659   s_mount_t mnt;
 660   mnt.storage =
 661     surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 662   mnt.name = xbt_strdup(mount->name);
 663
 664   if(!mount_list){
 665     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 666     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 667   }
 668   xbt_dynar_push(mount_list,&mnt);
 669 }
 670
 671 static XBT_INLINE void routing_storage_type_free(void *r)
 672 {
 673   storage_type_t stype = r;
 674   free(stype->model);
 675   free(stype->type_id);
 676   free(stype->content);
 677   free(stype->content_type);
 678   xbt_dict_free(&(stype->properties));
 679   free(stype);
 680 }
 681
 682 static XBT_INLINE void surf_storage_resource_free(void *r)
 683 {
 684   // specific to storage
 685   storage_t storage = r;
 686   xbt_dict_free(&storage->content);
 687   xbt_dynar_free(&storage->write_actions);
 688   free(storage->type_id);
 689   free(storage->content_type);
 690   // generic resource
 691   surf_resource_free(r);
 692 }
 693
 694 static XBT_INLINE void routing_storage_host_free(void *r)
 695 {
 696   xbt_dynar_t dyn = r;
 697   xbt_dynar_free(&dyn);
 698 }
 699
 700 void storage_register_callbacks() {
 701
 702   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
 703   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
 704   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
 705   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
 706
 707   sg_platf_storage_add_cb(storage_parse_storage);
 708   sg_platf_mstorage_add_cb(storage_parse_mstorage);
 709   sg_platf_storage_type_add_cb(storage_parse_storage_type);
 710   sg_platf_mount_add_cb(storage_parse_mount);
 711 }
 712