src/surf/storage.c

   1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012. 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 "xbt/file_stat.h"
  10 #include "portable.h"
  11 #include "surf_private.h"
  12 #include "storage_private.h"
  13 #include "surf/surf_resource.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, unsigned long *used_size);
  39 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state);
  40 static surf_action_t storage_action_execute (void *storage, double size, e_surf_action_storage_type_t type);
  41 static void free_storage_content(void *p);
  42
  43 static surf_action_t storage_action_stat(void *storage, surf_file_t stream)
  44 {
  45   surf_action_t action = storage_action_execute(storage,0, STAT);
  46   action->file = stream;
  47   action->stat = stream->content->stat;
  48   return action;
  49 }
  50
  51 static surf_action_t storage_action_ls(void *storage, const char* path)
  52 {
  53   surf_action_t action = storage_action_execute(storage,0, LS);
  54   action->ls_dict = NULL;
  55   xbt_dict_t ls_dict = xbt_dict_new();
  56
  57   char* key;
  58   surf_stat_t data = NULL;
  59   xbt_dict_cursor_t cursor = NULL;
  60
  61   xbt_dynar_t dyn = NULL;
  62   char* file = NULL;
  63
  64   // foreach file int the storage
  65   xbt_dict_foreach(((storage_t)storage)->content,cursor,key,data){
  66     // Search if file start with the prefix 'path'
  67     if(xbt_str_start_with(key,path)){
  68       file = &key[strlen(path)];
  69
  70       // Split file with '/'
  71       dyn = xbt_str_split(file,"/");
  72       file = xbt_dynar_get_as(dyn,0,char*);
  73
  74       // file
  75       if(xbt_dynar_length(dyn) == 1){
  76         xbt_dict_set(ls_dict,file,&(data->stat),NULL);
  77       }
  78       // Directory
  79       else
  80       {
  81         // if directory does not exist yet in dict
  82         if(!xbt_dict_get_or_null(ls_dict,file))
  83           xbt_dict_set(ls_dict,file,NULL,NULL);
  84       }
  85       xbt_dynar_free(&dyn);
  86     }
  87   }
  88
  89   action->ls_dict = ls_dict;
  90   return action;
  91 }
  92
  93 static surf_action_t storage_action_unlink(void *storage, surf_file_t stream)
  94 {
  95   surf_action_t action = storage_action_execute(storage,0, UNLINK);
  96
  97   // Add memory to storage
  98   ((storage_t)storage)->used_size -= stream->content->stat.size;
  99
 100   // Remove the file from storage
 101   xbt_dict_t content_dict = ((storage_t)storage)->content;
 102   xbt_dict_remove(content_dict,stream->name);
 103
 104   free(stream->name);
 105   stream->content = NULL;
 106   xbt_free(stream);
 107
 108   return action;
 109 }
 110
 111 static surf_action_t storage_action_open(void *storage, const char* mount, const char* path, const char* mode)
 112 {
 113   XBT_DEBUG("\tOpen file '%s'",path);
 114   xbt_dict_t content_dict = ((storage_t)storage)->content;
 115   surf_stat_t content = xbt_dict_get_or_null(content_dict,path);
 116
 117   // if file does not exist create an empty file
 118   if(!content){
 119     content = xbt_new0(s_surf_stat_t,1);
 120     content->stat.date = xbt_strdup("");
 121     content->stat.group = xbt_strdup("");
 122     content->stat.size = 0;
 123     content->stat.time = xbt_strdup("");
 124     content->stat.user = xbt_strdup("");
 125     content->stat.user_rights = xbt_strdup("");
 126     xbt_dict_set(content_dict,path,content,NULL);
 127     XBT_DEBUG("File '%s' was not found, file created.",path);
 128   }
 129   surf_file_t file = xbt_new0(s_surf_file_t,1);
 130   file->name = xbt_strdup(path);
 131   file->content = content;
 132   file->storage = mount;
 133
 134   surf_action_t action = storage_action_execute(storage,0, OPEN);
 135   action->file = (void *)file;
 136   return action;
 137 }
 138
 139 static surf_action_t storage_action_close(void *storage, surf_file_t fp)
 140 {
 141   char *filename = fp->name;
 142   XBT_DEBUG("\tClose file '%s' size '%f'",filename,fp->content->stat.size);
 143   // unref write actions from storage
 144   surf_action_storage_t write_action;
 145   unsigned int i;
 146   xbt_dynar_foreach(((storage_t)storage)->write_actions,i,write_action) {
 147     if ((write_action->generic_lmm_action.generic_action.file) == fp) {
 148       xbt_dynar_cursor_rm(((storage_t)storage)->write_actions, &i);
 149       storage_action_unref((surf_action_t) write_action);
 150     }
 151   }
 152
 153   free(fp->name);
 154   fp->content = NULL;
 155   xbt_free(fp);
 156   surf_action_t action = storage_action_execute(storage,0, CLOSE);
 157   return action;
 158 }
 159
 160 static surf_action_t storage_action_read(void *storage, void* ptr, double size, size_t nmemb, surf_file_t stream)
 161 {
 162   surf_stat_t content = stream->content;
 163   if(size > content->stat.size)
 164     size = content->stat.size;
 165   surf_action_t action = storage_action_execute(storage,size,READ);
 166   return action;
 167 }
 168
 169 static surf_action_t storage_action_write(void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 170 {
 171   char *filename = stream->name;
 172   surf_stat_t content = stream->content;
 173   XBT_DEBUG("\tWrite file '%s' size '%zu/%f'",filename,size,content->stat.size);
 174
 175   surf_action_t action = storage_action_execute(storage,size,WRITE);
 176   action->file = stream;
 177
 178   // If the storage is full
 179   if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
 180     storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 181   }
 182   return action;
 183 }
 184
 185 static surf_action_t storage_action_execute (void *storage, double size, e_surf_action_storage_type_t type)
 186 {
 187   surf_action_storage_t action = NULL;
 188   storage_t STORAGE = storage;
 189
 190   XBT_IN("(%s,%f)", surf_resource_name(STORAGE), size);
 191   action =
 192       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
 193           STORAGE->state_current != SURF_RESOURCE_ON);
 194
 195   // Save the storage on action
 196   action->storage = storage;
 197   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
 198                                                    calloc but it seems to help valgrind... */
 199
 200   GENERIC_LMM_ACTION(action).variable =
 201       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
 202
 203   // Must be less than the max bandwidth for all actions
 204   lmm_expand(storage_maxmin_system, STORAGE->constraint,
 205              GENERIC_LMM_ACTION(action).variable, 1.0);
 206
 207   switch(type) {
 208   case OPEN:
 209   case CLOSE:
 210   case STAT:
 211   case UNLINK:
 212   case LS:
 213     break;
 214   case READ:
 215     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
 216                GENERIC_LMM_ACTION(action).variable, 1.0);
 217     break;
 218   case WRITE:
 219     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
 220                GENERIC_LMM_ACTION(action).variable, 1.0);
 221     xbt_dynar_push(((storage_t)storage)->write_actions,&action);
 222     surf_action_ref((surf_action_t) action);
 223     break;
 224   }
 225   action->type = type;
 226   XBT_OUT();
 227   return (surf_action_t) action;
 228 }
 229
 230 static void* storage_create_resource(const char* id, const char* model,const char* type_id,const char* content_name)
 231 {
 232   storage_t storage = NULL;
 233
 234   xbt_assert(!surf_storage_resource_by_name(id),
 235               "Storage '%s' declared several times in the platform file",
 236               id);
 237   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
 238           surf_storage_model, id,NULL);
 239
 240   storage->state_current = SURF_RESOURCE_ON;
 241   storage->used_size = 0;
 242   storage->size = 0;
 243   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
 244
 245   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 246   double Bread  = atof(xbt_dict_get(storage_type->properties,"Bread"));
 247   double Bwrite = atof(xbt_dict_get(storage_type->properties,"Bwrite"));
 248   double Bconnection   = atof(xbt_dict_get(storage_type->properties,"Bconnection"));
 249   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%ld'",Bconnection,Bread,Bwrite,storage_type->size);
 250   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
 251   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
 252   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
 253   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
 254   storage->size = storage_type->size;
 255
 256   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 257
 258   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",
 259       id,
 260       model,
 261       type_id,
 262       storage_type->properties,
 263       Bread);
 264
 265   if(!storage_list) storage_list=xbt_dynar_new(sizeof(char *),NULL);
 266   xbt_dynar_push(storage_list,&storage);
 267
 268   return storage;
 269 }
 270
 271 static void storage_finalize(void)
 272 {
 273   lmm_system_free(storage_maxmin_system);
 274   storage_maxmin_system = NULL;
 275
 276   surf_model_exit(surf_storage_model);
 277   surf_storage_model = NULL;
 278
 279   if(storage_list)
 280     xbt_dynar_free(&storage_list);
 281
 282   xbt_swag_free
 283       (storage_running_action_set_that_does_not_need_being_checked);
 284   storage_running_action_set_that_does_not_need_being_checked = NULL;
 285 }
 286
 287 static void storage_update_actions_state(double now, double delta)
 288 {
 289   surf_action_storage_t action = NULL;
 290   surf_action_storage_t next_action = NULL;
 291   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
 292
 293   // Update the disk usage
 294   // Update the file size
 295   // Foreach action of type write
 296   xbt_swag_foreach_safe(action, next_action, running_actions) {
 297     if(action->type == WRITE)
 298     {
 299       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 300       ((storage_t)(action->storage))->used_size += delta * rate; // disk usage
 301       ((surf_action_t)action)->file->content->stat.size += delta * rate; // file size
 302     }
 303   }
 304
 305   xbt_swag_foreach_safe(action, next_action, running_actions) {
 306
 307     double_update(&(GENERIC_ACTION(action).remains),
 308                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
 309
 310     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
 311       double_update(&(GENERIC_ACTION(action).max_duration), delta);
 312
 313     if(GENERIC_ACTION(action).remains > 0 &&
 314         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
 315         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
 316     {
 317       GENERIC_ACTION(action).finish = surf_get_clock();
 318       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 319     } else if ((GENERIC_ACTION(action).remains <= 0) &&
 320         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
 321     {
 322       GENERIC_ACTION(action).finish = surf_get_clock();
 323       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 324     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
 325                (GENERIC_ACTION(action).max_duration <= 0))
 326     {
 327       GENERIC_ACTION(action).finish = surf_get_clock();
 328       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 329     }
 330   }
 331
 332   return;
 333 }
 334
 335 static double storage_share_resources(double NOW)
 336 {
 337   XBT_DEBUG("storage_share_resources %f",NOW);
 338   s_surf_action_storage_t action;
 339   unsigned int i,j;
 340   storage_t storage;
 341   surf_action_storage_t write_action;
 342
 343   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
 344       xbt_swag_offset(action, generic_lmm_action.variable),
 345       storage_maxmin_system, lmm_solve);
 346
 347   double rate;
 348   // Foreach disk
 349   xbt_dynar_foreach(storage_list,i,storage)
 350   {
 351     rate = 0;
 352     // Foreach write action on disk
 353     xbt_dynar_foreach(storage->write_actions,j,write_action)
 354     {
 355       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
 356     }
 357     if(rate > 0)
 358       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
 359   }
 360
 361   return min_completion;
 362 }
 363
 364 static int storage_resource_used(void *resource_id)
 365 {
 366   THROW_UNIMPLEMENTED;
 367   return 0;
 368 }
 369
 370 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
 371                                  double value, double time)
 372 {
 373   THROW_UNIMPLEMENTED;
 374 }
 375
 376 static int storage_action_unref(surf_action_t action)
 377 {
 378   action->refcount--;
 379   if (!action->refcount) {
 380     xbt_swag_remove(action, action->state_set);
 381     if (((surf_action_lmm_t) action)->variable)
 382       lmm_variable_free(storage_maxmin_system,
 383                         ((surf_action_lmm_t) action)->variable);
 384 #ifdef HAVE_TRACING
 385     xbt_free(action->category);
 386 #endif
 387     surf_action_free(&action);
 388     return 1;
 389   }
 390   return 0;
 391 }
 392
 393 static void storage_action_cancel(surf_action_t action)
 394 {
 395   surf_action_state_set(action, SURF_ACTION_FAILED);
 396   return;
 397 }
 398
 399 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
 400 {
 401   surf_action_state_set(action, state);
 402   return;
 403 }
 404
 405 static void storage_action_suspend(surf_action_t action)
 406 {
 407   XBT_IN("(%p)", action);
 408   if (((surf_action_lmm_t) action)->suspended != 2) {
 409     lmm_update_variable_weight(storage_maxmin_system,
 410                                ((surf_action_lmm_t) action)->variable,
 411                                0.0);
 412     ((surf_action_lmm_t) action)->suspended = 1;
 413   }
 414   XBT_OUT();
 415 }
 416
 417 static void storage_action_resume(surf_action_t action)
 418 {
 419   THROW_UNIMPLEMENTED;
 420 }
 421
 422 static int storage_action_is_suspended(surf_action_t action)
 423 {
 424   return (((surf_action_lmm_t) action)->suspended == 1);
 425 }
 426
 427 static void storage_action_set_max_duration(surf_action_t action, double duration)
 428 {
 429   THROW_UNIMPLEMENTED;
 430 }
 431
 432 static void storage_action_set_priority(surf_action_t action, double priority)
 433 {
 434   THROW_UNIMPLEMENTED;
 435 }
 436
 437 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
 438 {
 439   void* stype = xbt_lib_get_or_null(storage_type_lib,
 440                                     storage->type_id,
 441                                     ROUTING_STORAGE_TYPE_LEVEL);
 442   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 443
 444   // if storage content is not specified use the content of storage_type if exist
 445   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 446     storage->content = ((storage_type_t) stype)->content;
 447     XBT_DEBUG("For disk '%s' content is empty, use the content of storage type '%s'",storage->id,((storage_type_t) stype)->type_id);
 448   }
 449
 450   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' \n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tproperties '%p'\n",
 451       storage->id,
 452       ((storage_type_t) stype)->model,
 453       ((storage_type_t) stype)->type_id,
 454       storage->content,
 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 }
 462
 463 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
 464 {
 465   XBT_DEBUG("parse_mstorage_init");
 466 }
 467
 468 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
 469 {
 470   XBT_DEBUG("parse_storage_type_init");
 471 }
 472
 473 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
 474 {
 475   XBT_DEBUG("parse_mount_init");
 476 }
 477
 478 static void storage_define_callbacks()
 479 {
 480   sg_platf_storage_add_cb(parse_storage_init);
 481   sg_platf_storage_type_add_cb(parse_storage_type_init);
 482   sg_platf_mstorage_add_cb(parse_mstorage_init);
 483   sg_platf_mount_add_cb(parse_mount_init);
 484 }
 485
 486 static void surf_storage_model_init_internal(void)
 487 {
 488   s_surf_action_t action;
 489
 490   XBT_DEBUG("surf_storage_model_init_internal");
 491   surf_storage_model = surf_model_init();
 492
 493   storage_running_action_set_that_does_not_need_being_checked =
 494       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 495
 496   surf_storage_model->name = "Storage";
 497   surf_storage_model->action_unref = storage_action_unref;
 498   surf_storage_model->action_cancel = storage_action_cancel;
 499   surf_storage_model->action_state_set = storage_action_state_set;
 500
 501   surf_storage_model->model_private->finalize = storage_finalize;
 502   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
 503   surf_storage_model->model_private->share_resources = storage_share_resources;
 504   surf_storage_model->model_private->resource_used = storage_resource_used;
 505   surf_storage_model->model_private->update_resource_state = storage_resources_state;
 506
 507   surf_storage_model->suspend = storage_action_suspend;
 508   surf_storage_model->resume = storage_action_resume;
 509   surf_storage_model->is_suspended = storage_action_is_suspended;
 510   surf_storage_model->set_max_duration = storage_action_set_max_duration;
 511   surf_storage_model->set_priority = storage_action_set_priority;
 512
 513   surf_storage_model->extension.storage.open = storage_action_open;
 514   surf_storage_model->extension.storage.close = storage_action_close;
 515   surf_storage_model->extension.storage.read = storage_action_read;
 516   surf_storage_model->extension.storage.write = storage_action_write;
 517   surf_storage_model->extension.storage.stat = storage_action_stat;
 518   surf_storage_model->extension.storage.unlink = storage_action_unlink;
 519   surf_storage_model->extension.storage.ls = storage_action_ls;
 520   surf_storage_model->extension.storage.create_resource = storage_create_resource;
 521
 522   if (!storage_maxmin_system) {
 523     storage_maxmin_system = lmm_system_new(storage_selective_update);
 524   }
 525
 526 }
 527
 528 void surf_storage_model_init_default(void)
 529 {
 530   surf_storage_model_init_internal();
 531   storage_define_callbacks();
 532
 533   xbt_dynar_push(model_list, &surf_storage_model);
 534 }
 535
 536 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
 537 {
 538   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 539                "Reading a storage, processing unit \"%s\" already exists", storage->id);
 540
 541   // Verification of an existing type_id
 542 #ifndef NDEBUG
 543   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 544 #endif
 545   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 546
 547   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 548       storage->id,
 549       storage->type_id,
 550       storage->content);
 551
 552   xbt_lib_set(storage_lib,
 553       storage->id,
 554       ROUTING_STORAGE_LEVEL,
 555       (void *) xbt_strdup(storage->type_id));
 556 }
 557
 558 static void free_storage_content(void *p)
 559 {
 560   surf_stat_t content = p;
 561   free(content->stat.date);
 562   free(content->stat.group);
 563   free(content->stat.time);
 564   free(content->stat.user);
 565   free(content->stat.user_rights);
 566   free(content);
 567 }
 568
 569 static xbt_dict_t parse_storage_content(char *filename, unsigned long *used_size)
 570 {
 571   *used_size = 0;
 572   if ((!filename) || (strcmp(filename, "") == 0))
 573     return NULL;
 574
 575   xbt_dict_t parse_content = xbt_dict_new_homogeneous(free_storage_content);
 576   FILE *file = NULL;
 577
 578   file = surf_fopen(filename, "r");
 579   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
 580               xbt_str_join(surf_path, ":"));
 581
 582   char *line = NULL;
 583   size_t len = 0;
 584   ssize_t read;
 585   char user_rights[12];
 586   char user[100];
 587   char group[100];
 588   char date[12];
 589   char time[12];
 590   char path[1024];
 591   int nb;
 592   unsigned long size;
 593
 594   surf_stat_t content;
 595
 596   while ((read = getline(&line, &len, file)) != -1) {
 597     content = xbt_new0(s_surf_stat_t,1);
 598     if(sscanf(line,"%s %d %s %s %ld %s %s %s",user_rights,&nb,user,group,&size,date,time,path)==8) {
 599       content->stat.date = xbt_strdup(date);
 600       content->stat.group = xbt_strdup(group);
 601       content->stat.size = size;
 602       content->stat.time = xbt_strdup(time);
 603       content->stat.user = xbt_strdup(user);
 604       content->stat.user_rights = xbt_strdup(user_rights);
 605       *used_size += content->stat.size;
 606       xbt_dict_set(parse_content,path,content,NULL);
 607     } else {
 608       xbt_die("Be sure of passing a good format for content file.\n");
 609       // You can generate this kind of file with command line:
 610       // find /path/you/want -type f -exec ls -l {} \; 2>/dev/null > ./content.txt
 611     }
 612   }
 613   if (line)
 614       free(line);
 615   fclose(file);
 616   return parse_content;
 617 }
 618
 619 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
 620 {
 621   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 622                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 623
 624   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 625   stype->model = xbt_strdup(storage_type->model);
 626   stype->properties = storage_type->properties;
 627   stype->content = xbt_strdup(storage_type->content);
 628   stype->type_id = xbt_strdup(storage_type->id);
 629   stype->size = storage_type->size * 1000000000; /* storage_type->size is in Gbytes and stype->sizeis in bytes */
 630
 631   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s' content '%s'",
 632       stype->type_id,
 633       stype->model,
 634       storage_type->content);
 635
 636   xbt_lib_set(storage_type_lib,
 637       stype->type_id,
 638       ROUTING_STORAGE_TYPE_LEVEL,
 639       (void *) stype);
 640 }
 641 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 642 {
 643   THROW_UNIMPLEMENTED;
 644 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 645 //  mnt->id = xbt_strdup(mstorage->type_id);
 646 //  mnt->name = xbt_strdup(mstorage->name);
 647 //
 648 //  if(!mount_list){
 649 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 650 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 651 //  }
 652 //  xbt_dynar_push(mount_list,(void *) mnt);
 653 //  free(mnt->id);
 654 //  free(mnt->name);
 655 //  xbt_free(mnt);
 656 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 657 }
 658
 659 static void mount_free(void *p)
 660 {
 661   mount_t mnt = p;
 662   xbt_free(mnt->name);
 663 }
 664
 665 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
 666 {
 667   // Verification of an existing storage
 668 #ifndef NDEBUG
 669   void* storage = xbt_lib_get_or_null(storage_lib, mount->id,ROUTING_STORAGE_LEVEL);
 670 #endif
 671   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->id);
 672
 673   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->id, mount->name);
 674
 675   s_mount_t mnt;
 676   mnt.id = surf_storage_resource_by_name(mount->id);
 677   mnt.name = xbt_strdup(mount->name);
 678
 679   if(!mount_list){
 680     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 681     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 682   }
 683   xbt_dynar_push(mount_list,&mnt);
 684 }
 685
 686 static XBT_INLINE void routing_storage_type_free(void *r)
 687 {
 688   storage_type_t stype = r;
 689   free(stype->model);
 690   free(stype->type_id);
 691   free(stype->content);
 692   xbt_dict_free(&(stype->properties));
 693   free(stype);
 694 }
 695
 696 static XBT_INLINE void surf_storage_resource_free(void *r)
 697 {
 698   // specific to storage
 699   storage_t storage = r;
 700   xbt_dict_free(&storage->content);
 701   xbt_dynar_free(&storage->write_actions);
 702   // generic resource
 703   surf_resource_free(r);
 704 }
 705
 706 static XBT_INLINE void routing_storage_host_free(void *r)
 707 {
 708   xbt_dynar_t dyn = r;
 709   xbt_dynar_free(&dyn);
 710 }
 711
 712 void storage_register_callbacks() {
 713
 714   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
 715   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
 716   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
 717   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
 718
 719   sg_platf_storage_add_cb(storage_parse_storage);
 720   sg_platf_mstorage_add_cb(storage_parse_mstorage);
 721   sg_platf_storage_type_add_cb(storage_parse_storage_type);
 722   sg_platf_mount_add_cb(storage_parse_mount);
 723 }