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, size_t 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->mount = 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->mount);
 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, size_t size,
 127                                          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, size_t size,
 136                                           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, size_t 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,%zu", 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 xbt_dict_t storage_get_properties(const void *storage)
 196 {
 197   return surf_resource_properties(surf_storage_resource_priv(storage));
 198 }
 199
 200 static xbt_dict_t storage_get_content(void *storage)
 201 {
 202   /* For the moment this action has no cost, but in the future we could take in account access latency of the disk */
 203   /*surf_action_t action = storage_action_execute(storage,0, LS);*/
 204
 205   void *st = surf_storage_resource_priv(storage);
 206   xbt_dict_t content_dict = xbt_dict_new();
 207   xbt_dict_cursor_t cursor = NULL;
 208   char *file;
 209   char *size;
 210   xbt_dict_foreach(((storage_t)st)->content, cursor, file, size){
 211     xbt_dict_set(content_dict,file,(void*)size,NULL);
 212   }
 213   return content_dict;
 214 }
 215
 216 static void* storage_create_resource(const char* id, const char* model,
 217     const char* type_id, const char* content_name, const char* content_type, xbt_dict_t properties){
 218   storage_t storage = NULL;
 219
 220   xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
 221               "Storage '%s' declared several times in the platform file",
 222               id);
 223   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
 224           surf_storage_model, id, properties, NULL);
 225
 226   storage->state_current = SURF_RESOURCE_ON;
 227   storage->used_size = 0;
 228   storage->size = 0;
 229   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
 230
 231   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 232   double Bread =
 233       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bread"));
 234   double Bwrite =
 235       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bwrite"));
 236   double Bconnection =
 237       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,
 238                                             "Bconnection"));
 239   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%lu'",Bconnection,Bread,Bwrite,(unsigned long)storage_type->size);
 240   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
 241   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
 242   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
 243   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
 244   storage->content_type = xbt_strdup(content_type);
 245   storage->size = storage_type->size;
 246   storage->type_id = xbt_strdup(type_id);
 247
 248   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 249
 250   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",
 251       id,
 252       model,
 253       type_id,
 254       storage_type->properties,
 255       Bread);
 256
 257   if (!storage_list)
 258     storage_list = xbt_dynar_new(sizeof(char *),NULL);
 259   xbt_dynar_push(storage_list,&storage);
 260
 261   return storage;
 262 }
 263
 264 static void storage_finalize(void)
 265 {
 266   lmm_system_free(storage_maxmin_system);
 267   storage_maxmin_system = NULL;
 268
 269   surf_model_exit(surf_storage_model);
 270   surf_storage_model = NULL;
 271
 272   xbt_dynar_free(&storage_list);
 273
 274   xbt_swag_free
 275       (storage_running_action_set_that_does_not_need_being_checked);
 276   storage_running_action_set_that_does_not_need_being_checked = NULL;
 277 }
 278
 279 static void storage_update_actions_state(double now, double delta)
 280 {
 281   surf_action_storage_t action = NULL;
 282   surf_action_storage_t next_action = NULL;
 283   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
 284
 285   // Update the disk usage
 286   // Update the file size
 287   // For each action of type write
 288   xbt_swag_foreach_safe(action, next_action, running_actions) {
 289     if(action->type == WRITE)
 290     {
 291       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 292       /* Hack to avoid rounding differences between x86 and x86_64
 293        * (note that the next sizes are of type size_t). */
 294       long incr = delta * rate + MAXMIN_PRECISION;
 295       ((storage_t)(action->storage))->used_size += incr; // disk usage
 296       ((surf_action_t)action)->file->size += incr; // file size
 297     }
 298   }
 299
 300   xbt_swag_foreach_safe(action, next_action, running_actions) {
 301
 302     double_update(&(GENERIC_ACTION(action).remains),
 303                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
 304
 305     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
 306       double_update(&(GENERIC_ACTION(action).max_duration), delta);
 307
 308     if(GENERIC_ACTION(action).remains > 0 &&
 309         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
 310         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
 311     {
 312       GENERIC_ACTION(action).finish = surf_get_clock();
 313       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 314     } else if ((GENERIC_ACTION(action).remains <= 0) &&
 315         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
 316     {
 317       GENERIC_ACTION(action).finish = surf_get_clock();
 318       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 319     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
 320                (GENERIC_ACTION(action).max_duration <= 0))
 321     {
 322       GENERIC_ACTION(action).finish = surf_get_clock();
 323       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 324     }
 325   }
 326
 327   return;
 328 }
 329
 330 static double storage_share_resources(double NOW)
 331 {
 332   XBT_DEBUG("storage_share_resources %f",NOW);
 333   s_surf_action_storage_t action;
 334   unsigned int i,j;
 335   storage_t storage;
 336   surf_action_storage_t write_action;
 337
 338   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
 339       xbt_swag_offset(action, generic_lmm_action.variable),
 340       storage_maxmin_system, lmm_solve);
 341
 342   double rate;
 343   // Foreach disk
 344   xbt_dynar_foreach(storage_list,i,storage)
 345   {
 346     rate = 0;
 347     // Foreach write action on disk
 348     xbt_dynar_foreach(storage->write_actions,j,write_action)
 349     {
 350       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
 351     }
 352     if(rate > 0)
 353       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
 354   }
 355
 356   return min_completion;
 357 }
 358
 359 static int storage_resource_used(void *resource_id)
 360 {
 361   THROW_UNIMPLEMENTED;
 362   return 0;
 363 }
 364
 365 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
 366                                  double value, double time)
 367 {
 368   THROW_UNIMPLEMENTED;
 369 }
 370
 371 static int storage_action_unref(surf_action_t action)
 372 {
 373   action->refcount--;
 374   if (!action->refcount) {
 375     xbt_swag_remove(action, action->state_set);
 376     if (((surf_action_lmm_t) action)->variable)
 377       lmm_variable_free(storage_maxmin_system,
 378                         ((surf_action_lmm_t) action)->variable);
 379 #ifdef HAVE_TRACING
 380     xbt_free(action->category);
 381 #endif
 382     surf_action_free(&action);
 383     return 1;
 384   }
 385   return 0;
 386 }
 387
 388 static void storage_action_cancel(surf_action_t action)
 389 {
 390   surf_action_state_set(action, SURF_ACTION_FAILED);
 391   return;
 392 }
 393
 394 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
 395 {
 396   surf_action_state_set(action, state);
 397   return;
 398 }
 399
 400 static void storage_action_suspend(surf_action_t action)
 401 {
 402   XBT_IN("(%p)", action);
 403   if (((surf_action_lmm_t) action)->suspended != 2) {
 404     lmm_update_variable_weight(storage_maxmin_system,
 405                                ((surf_action_lmm_t) action)->variable,
 406                                0.0);
 407     ((surf_action_lmm_t) action)->suspended = 1;
 408   }
 409   XBT_OUT();
 410 }
 411
 412 static void storage_action_resume(surf_action_t action)
 413 {
 414   THROW_UNIMPLEMENTED;
 415 }
 416
 417 static int storage_action_is_suspended(surf_action_t action)
 418 {
 419   return (((surf_action_lmm_t) action)->suspended == 1);
 420 }
 421
 422 static void storage_action_set_max_duration(surf_action_t action, double duration)
 423 {
 424   THROW_UNIMPLEMENTED;
 425 }
 426
 427 static void storage_action_set_priority(surf_action_t action, double priority)
 428 {
 429   THROW_UNIMPLEMENTED;
 430 }
 431
 432 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
 433 {
 434   void* stype = xbt_lib_get_or_null(storage_type_lib,
 435                                     storage->type_id,
 436                                     ROUTING_STORAGE_TYPE_LEVEL);
 437   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 438
 439   // if storage content is not specified use the content of storage_type if exist
 440   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 441     storage->content = ((storage_type_t) stype)->content;
 442     storage->content_type = ((storage_type_t) stype)->content_type;
 443     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 444         storage->id,((storage_type_t) stype)->content_type,
 445         ((storage_type_t) stype)->type_id);
 446   }
 447
 448   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 449       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 450       "\n\t\tproperties '%p'\n",
 451       storage->id,
 452       ((storage_type_t) stype)->model,
 453       ((storage_type_t) stype)->type_id,
 454       storage->content,
 455       storage->content_type,
 456       ((storage_type_t) stype)->properties);
 457
 458   storage_create_resource(storage->id,
 459      ((storage_type_t) stype)->model,
 460      ((storage_type_t) stype)->type_id,
 461      storage->content,
 462      storage->content_type,
 463      storage->properties);
 464 }
 465
 466 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
 467 {
 468   XBT_DEBUG("parse_mstorage_init");
 469 }
 470
 471 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
 472 {
 473   XBT_DEBUG("parse_storage_type_init");
 474 }
 475
 476 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
 477 {
 478   XBT_DEBUG("parse_mount_init");
 479 }
 480
 481 static void storage_define_callbacks()
 482 {
 483   sg_platf_storage_add_cb(parse_storage_init);
 484   sg_platf_storage_type_add_cb(parse_storage_type_init);
 485   sg_platf_mstorage_add_cb(parse_mstorage_init);
 486   sg_platf_mount_add_cb(parse_mount_init);
 487 }
 488
 489 static void surf_storage_model_init_internal(void)
 490 {
 491   s_surf_action_t action;
 492
 493   XBT_DEBUG("surf_storage_model_init_internal");
 494   surf_storage_model = surf_model_init();
 495
 496   storage_running_action_set_that_does_not_need_being_checked =
 497       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 498
 499   surf_storage_model->name = "Storage";
 500   surf_storage_model->action_unref = storage_action_unref;
 501   surf_storage_model->action_cancel = storage_action_cancel;
 502   surf_storage_model->action_state_set = storage_action_state_set;
 503
 504   surf_storage_model->model_private->finalize = storage_finalize;
 505   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
 506   surf_storage_model->model_private->share_resources = storage_share_resources;
 507   surf_storage_model->model_private->resource_used = storage_resource_used;
 508   surf_storage_model->model_private->update_resource_state = storage_resources_state;
 509
 510   surf_storage_model->suspend = storage_action_suspend;
 511   surf_storage_model->resume = storage_action_resume;
 512   surf_storage_model->is_suspended = storage_action_is_suspended;
 513   surf_storage_model->set_max_duration = storage_action_set_max_duration;
 514   surf_storage_model->set_priority = storage_action_set_priority;
 515
 516   surf_storage_model->extension.storage.open = storage_action_open;
 517   surf_storage_model->extension.storage.close = storage_action_close;
 518   surf_storage_model->extension.storage.read = storage_action_read;
 519   surf_storage_model->extension.storage.write = storage_action_write;
 520   surf_storage_model->extension.storage.ls = storage_action_ls;
 521   surf_storage_model->extension.storage.get_properties = storage_get_properties;
 522   surf_storage_model->extension.storage.get_content = storage_get_content;
 523
 524   if (!storage_maxmin_system) {
 525     storage_maxmin_system = lmm_system_new(storage_selective_update);
 526   }
 527
 528 }
 529
 530 void surf_storage_model_init_default(void)
 531 {
 532   surf_storage_model_init_internal();
 533   storage_define_callbacks();
 534
 535   xbt_dynar_push(model_list, &surf_storage_model);
 536 }
 537
 538 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
 539 {
 540   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 541                "Reading a storage, processing unit \"%s\" already exists", storage->id);
 542
 543   // Verification of an existing type_id
 544 #ifndef NDEBUG
 545   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 546 #endif
 547   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 548
 549   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 550       storage->id,
 551       storage->type_id,
 552       storage->content);
 553
 554   xbt_lib_set(storage_lib,
 555       storage->id,
 556       ROUTING_STORAGE_LEVEL,
 557       (void *) xbt_strdup(storage->type_id));
 558 }
 559
 560 static xbt_dict_t parse_storage_content(char *filename, size_t *used_size)
 561 {
 562   *used_size = 0;
 563   if ((!filename) || (strcmp(filename, "") == 0))
 564     return NULL;
 565
 566   xbt_dict_t parse_content = xbt_dict_new_homogeneous(NULL);
 567   FILE *file = NULL;
 568
 569   file = surf_fopen(filename, "r");
 570   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
 571               xbt_str_join(surf_path, ":"));
 572
 573   char *line = NULL;
 574   size_t len = 0;
 575   ssize_t read;
 576   char path[1024];
 577   size_t size;
 578
 579
 580   while ((read = xbt_getline(&line, &len, file)) != -1) {
 581     if (read){
 582     if(sscanf(line,"%s %zu",path, &size)==2) {
 583         *used_size += size;
 584         xbt_dict_set(parse_content,path,(void*) size,NULL);
 585       } else {
 586         xbt_die("Be sure of passing a good format for content file.\n");
 587       }
 588     }
 589   }
 590   free(line);
 591   fclose(file);
 592   return parse_content;
 593 }
 594
 595 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
 596 {
 597   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 598                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 599
 600   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 601   stype->model = xbt_strdup(storage_type->model);
 602   stype->properties = storage_type->properties;
 603   stype->content = xbt_strdup(storage_type->content);
 604   stype->content_type = xbt_strdup(storage_type->content_type);
 605   stype->type_id = xbt_strdup(storage_type->id);
 606   stype->size = storage_type->size;
 607
 608   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 609       "content '%s', and content_type '%s'",
 610       stype->type_id,
 611       stype->model,
 612       storage_type->content,
 613       storage_type->content_type);
 614
 615   xbt_lib_set(storage_type_lib,
 616       stype->type_id,
 617       ROUTING_STORAGE_TYPE_LEVEL,
 618       (void *) stype);
 619 }
 620 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 621 {
 622   THROW_UNIMPLEMENTED;
 623 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 624 //  mnt->id = xbt_strdup(mstorage->type_id);
 625 //  mnt->name = xbt_strdup(mstorage->name);
 626 //
 627 //  if(!mount_list){
 628 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 629 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 630 //  }
 631 //  xbt_dynar_push(mount_list,(void *) mnt);
 632 //  free(mnt->id);
 633 //  free(mnt->name);
 634 //  xbt_free(mnt);
 635 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 636 }
 637
 638 static void mount_free(void *p)
 639 {
 640   mount_t mnt = p;
 641   xbt_free(mnt->name);
 642 }
 643
 644 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
 645 {
 646   // Verification of an existing storage
 647 #ifndef NDEBUG
 648   void* storage = xbt_lib_get_or_null(storage_lib, mount->storageId,ROUTING_STORAGE_LEVEL);
 649 #endif
 650   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->storageId);
 651
 652   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 653
 654   s_mount_t mnt;
 655   mnt.storage =
 656     surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 657   mnt.name = xbt_strdup(mount->name);
 658
 659   if(!mount_list){
 660     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 661     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 662   }
 663   xbt_dynar_push(mount_list,&mnt);
 664 }
 665
 666 static XBT_INLINE void routing_storage_type_free(void *r)
 667 {
 668   storage_type_t stype = r;
 669   free(stype->model);
 670   free(stype->type_id);
 671   free(stype->content);
 672   free(stype->content_type);
 673   xbt_dict_free(&(stype->properties));
 674   free(stype);
 675 }
 676
 677 static XBT_INLINE void surf_storage_resource_free(void *r)
 678 {
 679   // specific to storage
 680   storage_t storage = r;
 681   xbt_dict_free(&storage->content);
 682   xbt_dynar_free(&storage->write_actions);
 683   free(storage->type_id);
 684   free(storage->content_type);
 685   // generic resource
 686   surf_resource_free(r);
 687 }
 688
 689 static XBT_INLINE void routing_storage_host_free(void *r)
 690 {
 691   xbt_dynar_t dyn = r;
 692   xbt_dynar_free(&dyn);
 693 }
 694
 695 void storage_register_callbacks() {
 696
 697   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
 698   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
 699   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
 700   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
 701
 702   sg_platf_storage_add_cb(storage_parse_storage);
 703   sg_platf_mstorage_add_cb(storage_parse_mstorage);
 704   sg_platf_storage_type_add_cb(storage_parse_storage_type);
 705   sg_platf_mount_add_cb(storage_parse_mount);
 706 }
 707