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 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, double size, e_surf_action_storage_type_t type);
  42 static void free_storage_content(void *p);
  43
  44 static surf_action_t storage_action_stat(void *storage, surf_file_t stream)
  45 {
  46   surf_action_t action = storage_action_execute(storage,0, STAT);
  47   action->file = stream;
  48   action->stat = stream->content->stat;
  49   return action;
  50 }
  51
  52 static surf_action_t storage_action_ls(void *storage, const char* path)
  53 {
  54   surf_action_t action = storage_action_execute(storage,0, LS);
  55   action->ls_dict = NULL;
  56   xbt_dict_t ls_dict = xbt_dict_new();
  57
  58   char* key;
  59   surf_stat_t data = NULL;
  60   xbt_dict_cursor_t cursor = NULL;
  61
  62   xbt_dynar_t dyn = NULL;
  63   char* file = NULL;
  64
  65   // foreach file int the storage
  66   xbt_dict_foreach(((storage_t)storage)->content,cursor,key,data){
  67     // Search if file start with the prefix 'path'
  68     if(xbt_str_start_with(key,path)){
  69       file = &key[strlen(path)];
  70
  71       // Split file with '/'
  72       dyn = xbt_str_split(file,"/");
  73       file = xbt_dynar_get_as(dyn,0,char*);
  74
  75       // file
  76       if(xbt_dynar_length(dyn) == 1){
  77         xbt_dict_set(ls_dict,file,&(data->stat),NULL);
  78       }
  79       // Directory
  80       else
  81       {
  82         // if directory does not exist yet in dict
  83         if(!xbt_dict_get_or_null(ls_dict,file))
  84           xbt_dict_set(ls_dict,file,NULL,NULL);
  85       }
  86       xbt_dynar_free(&dyn);
  87     }
  88   }
  89
  90   action->ls_dict = ls_dict;
  91   return action;
  92 }
  93
  94 static surf_action_t storage_action_unlink(void *storage, surf_file_t stream)
  95 {
  96   surf_action_t action = storage_action_execute(storage,0, UNLINK);
  97
  98   // Add memory to storage
  99   ((storage_t)storage)->used_size -= stream->content->stat.size;
 100
 101   // Remove the file from storage
 102   xbt_dict_t content_dict = ((storage_t)storage)->content;
 103   xbt_dict_remove(content_dict,stream->name);
 104
 105   free(stream->name);
 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   xbt_free(fp);
 155   surf_action_t action = storage_action_execute(storage,0, CLOSE);
 156   return action;
 157 }
 158
 159 static surf_action_t storage_action_read(void *storage, void* ptr, double size, size_t nmemb, surf_file_t stream)
 160 {
 161   surf_stat_t content = stream->content;
 162   if(size > content->stat.size)
 163     size = content->stat.size;
 164   surf_action_t action = storage_action_execute(storage,size,READ);
 165   return action;
 166 }
 167
 168 static surf_action_t storage_action_write(void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 169 {
 170   char *filename = stream->name;
 171   surf_stat_t content = stream->content;
 172   XBT_DEBUG("\tWrite file '%s' size '%zu/%f'",filename,size,content->stat.size);
 173
 174   surf_action_t action = storage_action_execute(storage,size,WRITE);
 175   action->file = stream;
 176
 177   // If the storage is full
 178   if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
 179     storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 180   }
 181   return action;
 182 }
 183
 184 static surf_action_t storage_action_execute (void *storage, double size, e_surf_action_storage_type_t type)
 185 {
 186   surf_action_storage_t action = NULL;
 187   storage_t STORAGE = storage;
 188
 189   XBT_IN("(%s,%f)", surf_resource_name(STORAGE), size);
 190   action =
 191       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
 192           STORAGE->state_current != SURF_RESOURCE_ON);
 193
 194   // Save the storage on action
 195   action->storage = storage;
 196   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
 197                                                    calloc but it seems to help valgrind... */
 198
 199   GENERIC_LMM_ACTION(action).variable =
 200       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
 201
 202   // Must be less than the max bandwidth for all actions
 203   lmm_expand(storage_maxmin_system, STORAGE->constraint,
 204              GENERIC_LMM_ACTION(action).variable, 1.0);
 205
 206   switch(type) {
 207   case OPEN:
 208   case CLOSE:
 209   case STAT:
 210   case UNLINK:
 211   case LS:
 212     break;
 213   case READ:
 214     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
 215                GENERIC_LMM_ACTION(action).variable, 1.0);
 216     break;
 217   case WRITE:
 218     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
 219                GENERIC_LMM_ACTION(action).variable, 1.0);
 220     xbt_dynar_push(((storage_t)storage)->write_actions,&action);
 221     surf_action_ref((surf_action_t) action);
 222     break;
 223   }
 224   action->type = type;
 225   XBT_OUT();
 226   return (surf_action_t) action;
 227 }
 228
 229 static void* storage_create_resource(const char* id, const char* model,const char* type_id,const char* content_name)
 230 {
 231   storage_t storage = NULL;
 232
 233   xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
 234               "Storage '%s' declared several times in the platform file",
 235               id);
 236   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
 237           surf_storage_model, id,NULL);
 238
 239   storage->state_current = SURF_RESOURCE_ON;
 240   storage->used_size = 0;
 241   storage->size = 0;
 242   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
 243
 244   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 245   double Bread  = atof(xbt_dict_get(storage_type->properties,"Bread"));
 246   double Bwrite = atof(xbt_dict_get(storage_type->properties,"Bwrite"));
 247   double Bconnection   = atof(xbt_dict_get(storage_type->properties,"Bconnection"));
 248   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%ld'",Bconnection,Bread,Bwrite,storage_type->size);
 249   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
 250   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
 251   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
 252   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
 253   storage->size = storage_type->size;
 254
 255   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 256
 257   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",
 258       id,
 259       model,
 260       type_id,
 261       storage_type->properties,
 262       Bread);
 263
 264   if(!storage_list) storage_list=xbt_dynar_new(sizeof(char *),NULL);
 265   xbt_dynar_push(storage_list,&storage);
 266
 267   return storage;
 268 }
 269
 270 static void storage_finalize(void)
 271 {
 272   lmm_system_free(storage_maxmin_system);
 273   storage_maxmin_system = NULL;
 274
 275   surf_model_exit(surf_storage_model);
 276   surf_storage_model = NULL;
 277
 278   xbt_dynar_free(&storage_list);
 279
 280   xbt_swag_free
 281       (storage_running_action_set_that_does_not_need_being_checked);
 282   storage_running_action_set_that_does_not_need_being_checked = NULL;
 283 }
 284
 285 static void storage_update_actions_state(double now, double delta)
 286 {
 287   surf_action_storage_t action = NULL;
 288   surf_action_storage_t next_action = NULL;
 289   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
 290
 291   // Update the disk usage
 292   // Update the file size
 293   // Foreach action of type write
 294   xbt_swag_foreach_safe(action, next_action, running_actions) {
 295     if(action->type == WRITE)
 296     {
 297       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 298       ((storage_t)(action->storage))->used_size += delta * rate; // disk usage
 299       ((surf_action_t)action)->file->content->stat.size += delta * rate; // file size
 300     }
 301   }
 302
 303   xbt_swag_foreach_safe(action, next_action, running_actions) {
 304
 305     double_update(&(GENERIC_ACTION(action).remains),
 306                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
 307
 308     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
 309       double_update(&(GENERIC_ACTION(action).max_duration), delta);
 310
 311     if(GENERIC_ACTION(action).remains > 0 &&
 312         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
 313         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
 314     {
 315       GENERIC_ACTION(action).finish = surf_get_clock();
 316       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 317     } else if ((GENERIC_ACTION(action).remains <= 0) &&
 318         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
 319     {
 320       GENERIC_ACTION(action).finish = surf_get_clock();
 321       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 322     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
 323                (GENERIC_ACTION(action).max_duration <= 0))
 324     {
 325       GENERIC_ACTION(action).finish = surf_get_clock();
 326       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 327     }
 328   }
 329
 330   return;
 331 }
 332
 333 static double storage_share_resources(double NOW)
 334 {
 335   XBT_DEBUG("storage_share_resources %f",NOW);
 336   s_surf_action_storage_t action;
 337   unsigned int i,j;
 338   storage_t storage;
 339   surf_action_storage_t write_action;
 340
 341   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
 342       xbt_swag_offset(action, generic_lmm_action.variable),
 343       storage_maxmin_system, lmm_solve);
 344
 345   double rate;
 346   // Foreach disk
 347   xbt_dynar_foreach(storage_list,i,storage)
 348   {
 349     rate = 0;
 350     // Foreach write action on disk
 351     xbt_dynar_foreach(storage->write_actions,j,write_action)
 352     {
 353       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
 354     }
 355     if(rate > 0)
 356       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
 357   }
 358
 359   return min_completion;
 360 }
 361
 362 static int storage_resource_used(void *resource_id)
 363 {
 364   THROW_UNIMPLEMENTED;
 365   return 0;
 366 }
 367
 368 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
 369                                  double value, double time)
 370 {
 371   THROW_UNIMPLEMENTED;
 372 }
 373
 374 static int storage_action_unref(surf_action_t action)
 375 {
 376   action->refcount--;
 377   if (!action->refcount) {
 378     xbt_swag_remove(action, action->state_set);
 379     if (((surf_action_lmm_t) action)->variable)
 380       lmm_variable_free(storage_maxmin_system,
 381                         ((surf_action_lmm_t) action)->variable);
 382 #ifdef HAVE_TRACING
 383     xbt_free(action->category);
 384 #endif
 385     surf_action_free(&action);
 386     return 1;
 387   }
 388   return 0;
 389 }
 390
 391 static void storage_action_cancel(surf_action_t action)
 392 {
 393   surf_action_state_set(action, SURF_ACTION_FAILED);
 394   return;
 395 }
 396
 397 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
 398 {
 399   surf_action_state_set(action, state);
 400   return;
 401 }
 402
 403 static void storage_action_suspend(surf_action_t action)
 404 {
 405   XBT_IN("(%p)", action);
 406   if (((surf_action_lmm_t) action)->suspended != 2) {
 407     lmm_update_variable_weight(storage_maxmin_system,
 408                                ((surf_action_lmm_t) action)->variable,
 409                                0.0);
 410     ((surf_action_lmm_t) action)->suspended = 1;
 411   }
 412   XBT_OUT();
 413 }
 414
 415 static void storage_action_resume(surf_action_t action)
 416 {
 417   THROW_UNIMPLEMENTED;
 418 }
 419
 420 static int storage_action_is_suspended(surf_action_t action)
 421 {
 422   return (((surf_action_lmm_t) action)->suspended == 1);
 423 }
 424
 425 static void storage_action_set_max_duration(surf_action_t action, double duration)
 426 {
 427   THROW_UNIMPLEMENTED;
 428 }
 429
 430 static void storage_action_set_priority(surf_action_t action, double priority)
 431 {
 432   THROW_UNIMPLEMENTED;
 433 }
 434
 435 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
 436 {
 437   void* stype = xbt_lib_get_or_null(storage_type_lib,
 438                                     storage->type_id,
 439                                     ROUTING_STORAGE_TYPE_LEVEL);
 440   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 441
 442   // if storage content is not specified use the content of storage_type if exist
 443   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 444     storage->content = ((storage_type_t) stype)->content;
 445     XBT_DEBUG("For disk '%s' content is empty, use the content of storage type '%s'",storage->id,((storage_type_t) stype)->type_id);
 446   }
 447
 448   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",
 449       storage->id,
 450       ((storage_type_t) stype)->model,
 451       ((storage_type_t) stype)->type_id,
 452       storage->content,
 453       ((storage_type_t) stype)->properties);
 454
 455   storage_create_resource(storage->id,
 456      ((storage_type_t) stype)->model,
 457      ((storage_type_t) stype)->type_id,
 458      storage->content);
 459 }
 460
 461 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
 462 {
 463   XBT_DEBUG("parse_mstorage_init");
 464 }
 465
 466 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
 467 {
 468   XBT_DEBUG("parse_storage_type_init");
 469 }
 470
 471 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
 472 {
 473   XBT_DEBUG("parse_mount_init");
 474 }
 475
 476 static void storage_define_callbacks()
 477 {
 478   sg_platf_storage_add_cb(parse_storage_init);
 479   sg_platf_storage_type_add_cb(parse_storage_type_init);
 480   sg_platf_mstorage_add_cb(parse_mstorage_init);
 481   sg_platf_mount_add_cb(parse_mount_init);
 482 }
 483
 484 static void surf_storage_model_init_internal(void)
 485 {
 486   s_surf_action_t action;
 487
 488   XBT_DEBUG("surf_storage_model_init_internal");
 489   surf_storage_model = surf_model_init();
 490
 491   storage_running_action_set_that_does_not_need_being_checked =
 492       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 493
 494   surf_storage_model->name = "Storage";
 495   surf_storage_model->action_unref = storage_action_unref;
 496   surf_storage_model->action_cancel = storage_action_cancel;
 497   surf_storage_model->action_state_set = storage_action_state_set;
 498
 499   surf_storage_model->model_private->finalize = storage_finalize;
 500   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
 501   surf_storage_model->model_private->share_resources = storage_share_resources;
 502   surf_storage_model->model_private->resource_used = storage_resource_used;
 503   surf_storage_model->model_private->update_resource_state = storage_resources_state;
 504
 505   surf_storage_model->suspend = storage_action_suspend;
 506   surf_storage_model->resume = storage_action_resume;
 507   surf_storage_model->is_suspended = storage_action_is_suspended;
 508   surf_storage_model->set_max_duration = storage_action_set_max_duration;
 509   surf_storage_model->set_priority = storage_action_set_priority;
 510
 511   surf_storage_model->extension.storage.open = storage_action_open;
 512   surf_storage_model->extension.storage.close = storage_action_close;
 513   surf_storage_model->extension.storage.read = storage_action_read;
 514   surf_storage_model->extension.storage.write = storage_action_write;
 515   surf_storage_model->extension.storage.stat = storage_action_stat;
 516   surf_storage_model->extension.storage.unlink = storage_action_unlink;
 517   surf_storage_model->extension.storage.ls = storage_action_ls;
 518
 519   if (!storage_maxmin_system) {
 520     storage_maxmin_system = lmm_system_new(storage_selective_update);
 521   }
 522
 523 }
 524
 525 void surf_storage_model_init_default(void)
 526 {
 527   surf_storage_model_init_internal();
 528   storage_define_callbacks();
 529
 530   xbt_dynar_push(model_list, &surf_storage_model);
 531 }
 532
 533 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
 534 {
 535   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 536                "Reading a storage, processing unit \"%s\" already exists", storage->id);
 537
 538   // Verification of an existing type_id
 539 #ifndef NDEBUG
 540   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 541 #endif
 542   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 543
 544   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 545       storage->id,
 546       storage->type_id,
 547       storage->content);
 548
 549   xbt_lib_set(storage_lib,
 550       storage->id,
 551       ROUTING_STORAGE_LEVEL,
 552       (void *) xbt_strdup(storage->type_id));
 553 }
 554
 555 static void free_storage_content(void *p)
 556 {
 557   surf_stat_t content = p;
 558   free(content->stat.date);
 559   free(content->stat.group);
 560   free(content->stat.time);
 561   free(content->stat.user);
 562   free(content->stat.user_rights);
 563   free(content);
 564 }
 565
 566 static xbt_dict_t parse_storage_content(char *filename, unsigned long *used_size)
 567 {
 568   *used_size = 0;
 569   if ((!filename) || (strcmp(filename, "") == 0))
 570     return NULL;
 571
 572   xbt_dict_t parse_content = xbt_dict_new_homogeneous(free_storage_content);
 573   FILE *file = NULL;
 574
 575   file = surf_fopen(filename, "r");
 576   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
 577               xbt_str_join(surf_path, ":"));
 578
 579   char *line = NULL;
 580   size_t len = 0;
 581   ssize_t read;
 582   char user_rights[12];
 583   char user[100];
 584   char group[100];
 585   char date[12];
 586   char time[12];
 587   char path[1024];
 588   int nb;
 589   unsigned long size;
 590
 591   surf_stat_t content;
 592
 593   while ((read = xbt_getline(&line, &len, file)) != -1) {
 594     if (read){
 595     content = xbt_new0(s_surf_stat_t,1);
 596     if(sscanf(line,"%s %d %s %s %ld %s %s %s",user_rights,&nb,user,group,&size,date,time,path)==8) {
 597         content->stat.date = xbt_strdup(date);
 598         content->stat.group = xbt_strdup(group);
 599         content->stat.size = size;
 600         content->stat.time = xbt_strdup(time);
 601         content->stat.user = xbt_strdup(user);
 602         content->stat.user_rights = xbt_strdup(user_rights);
 603         *used_size += content->stat.size;
 604         xbt_dict_set(parse_content,path,content,NULL);
 605       } else {
 606         xbt_die("Be sure of passing a good format for content file.\n");
 607         // You can generate this kind of file with command line:
 608         // find /path/you/want -type f -exec ls -l {} \; 2>/dev/null > ./content.txt
 609       }
 610     }
 611   }
 612   free(line);
 613   fclose(file);
 614   return parse_content;
 615 }
 616
 617 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
 618 {
 619   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 620                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 621
 622   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 623   stype->model = xbt_strdup(storage_type->model);
 624   stype->properties = storage_type->properties;
 625   stype->content = xbt_strdup(storage_type->content);
 626   stype->type_id = xbt_strdup(storage_type->id);
 627   stype->size = storage_type->size * 1000000000; /* storage_type->size is in Gbytes and stype->sizeis in bytes */
 628
 629   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s' content '%s'",
 630       stype->type_id,
 631       stype->model,
 632       storage_type->content);
 633
 634   xbt_lib_set(storage_type_lib,
 635       stype->type_id,
 636       ROUTING_STORAGE_TYPE_LEVEL,
 637       (void *) stype);
 638 }
 639 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 640 {
 641   THROW_UNIMPLEMENTED;
 642 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 643 //  mnt->id = xbt_strdup(mstorage->type_id);
 644 //  mnt->name = xbt_strdup(mstorage->name);
 645 //
 646 //  if(!mount_list){
 647 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 648 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 649 //  }
 650 //  xbt_dynar_push(mount_list,(void *) mnt);
 651 //  free(mnt->id);
 652 //  free(mnt->name);
 653 //  xbt_free(mnt);
 654 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 655 }
 656
 657 static void mount_free(void *p)
 658 {
 659   mount_t mnt = p;
 660   xbt_free(mnt->name);
 661 }
 662
 663 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
 664 {
 665   // Verification of an existing storage
 666 #ifndef NDEBUG
 667   void* storage = xbt_lib_get_or_null(storage_lib, mount->id,ROUTING_STORAGE_LEVEL);
 668 #endif
 669   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->id);
 670
 671   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->id, mount->name);
 672
 673   s_mount_t mnt;
 674   mnt.id = surf_storage_resource_priv(surf_storage_resource_by_name(mount->id));
 675   mnt.name = xbt_strdup(mount->name);
 676
 677   if(!mount_list){
 678     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 679     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 680   }
 681   xbt_dynar_push(mount_list,&mnt);
 682 }
 683
 684 static XBT_INLINE void routing_storage_type_free(void *r)
 685 {
 686   storage_type_t stype = r;
 687   free(stype->model);
 688   free(stype->type_id);
 689   free(stype->content);
 690   xbt_dict_free(&(stype->properties));
 691   free(stype);
 692 }
 693
 694 static XBT_INLINE void surf_storage_resource_free(void *r)
 695 {
 696   // specific to storage
 697   storage_t storage = r;
 698   xbt_dict_free(&storage->content);
 699   xbt_dynar_free(&storage->write_actions);
 700   // generic resource
 701   surf_resource_free(r);
 702 }
 703
 704 static XBT_INLINE void routing_storage_host_free(void *r)
 705 {
 706   xbt_dynar_t dyn = r;
 707   xbt_dynar_free(&dyn);
 708 }
 709
 710 void storage_register_callbacks() {
 711
 712   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
 713   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
 714   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
 715   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
 716
 717   sg_platf_storage_add_cb(storage_parse_storage);
 718   sg_platf_mstorage_add_cb(storage_parse_mstorage);
 719   sg_platf_storage_type_add_cb(storage_parse_storage_type);
 720   sg_platf_mount_add_cb(storage_parse_mount);
 721 }