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