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