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   stream->content = NULL;
 107   xbt_free(stream);
 108
 109   return action;
 110 }
 111
 112 static surf_action_t storage_action_open(void *storage, const char* mount, const char* path, const char* mode)
 113 {
 114   XBT_DEBUG("\tOpen file '%s'",path);
 115   xbt_dict_t content_dict = ((storage_t)storage)->content;
 116   surf_stat_t content = xbt_dict_get_or_null(content_dict,path);
 117
 118   // if file does not exist create an empty file
 119   if(!content){
 120     content = xbt_new0(s_surf_stat_t,1);
 121     content->stat.date = xbt_strdup("");
 122     content->stat.group = xbt_strdup("");
 123     content->stat.size = 0;
 124     content->stat.time = xbt_strdup("");
 125     content->stat.user = xbt_strdup("");
 126     content->stat.user_rights = xbt_strdup("");
 127     xbt_dict_set(content_dict,path,content,NULL);
 128     XBT_DEBUG("File '%s' was not found, file created.",path);
 129   }
 130   surf_file_t file = xbt_new0(s_surf_file_t,1);
 131   file->name = xbt_strdup(path);
 132   file->content = content;
 133   file->storage = mount;
 134
 135   surf_action_t action = storage_action_execute(storage,0, OPEN);
 136   action->file = (void *)file;
 137   return action;
 138 }
 139
 140 static surf_action_t storage_action_close(void *storage, surf_file_t fp)
 141 {
 142   char *filename = fp->name;
 143   XBT_DEBUG("\tClose file '%s' size '%f'",filename,fp->content->stat.size);
 144   // unref write actions from storage
 145   surf_action_storage_t write_action;
 146   unsigned int i;
 147   xbt_dynar_foreach(((storage_t)storage)->write_actions,i,write_action) {
 148     if ((write_action->generic_lmm_action.generic_action.file) == fp) {
 149       xbt_dynar_cursor_rm(((storage_t)storage)->write_actions, &i);
 150       storage_action_unref((surf_action_t) write_action);
 151     }
 152   }
 153
 154   free(fp->name);
 155   fp->content = NULL;
 156   xbt_free(fp);
 157   surf_action_t action = storage_action_execute(storage,0, CLOSE);
 158   return action;
 159 }
 160
 161 static surf_action_t storage_action_read(void *storage, void* ptr, double size, size_t nmemb, surf_file_t stream)
 162 {
 163   surf_stat_t content = stream->content;
 164   if(size > content->stat.size)
 165     size = content->stat.size;
 166   surf_action_t action = storage_action_execute(storage,size,READ);
 167   return action;
 168 }
 169
 170 static surf_action_t storage_action_write(void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 171 {
 172   char *filename = stream->name;
 173   surf_stat_t content = stream->content;
 174   XBT_DEBUG("\tWrite file '%s' size '%zu/%f'",filename,size,content->stat.size);
 175
 176   surf_action_t action = storage_action_execute(storage,size,WRITE);
 177   action->file = stream;
 178
 179   // If the storage is full
 180   if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
 181     storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 182   }
 183   return action;
 184 }
 185
 186 static surf_action_t storage_action_execute (void *storage, double size, e_surf_action_storage_type_t type)
 187 {
 188   surf_action_storage_t action = NULL;
 189   storage_t STORAGE = storage;
 190
 191   XBT_IN("(%s,%f)", surf_resource_name(STORAGE), size);
 192   action =
 193       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
 194           STORAGE->state_current != SURF_RESOURCE_ON);
 195
 196   // Save the storage on action
 197   action->storage = storage;
 198   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
 199                                                    calloc but it seems to help valgrind... */
 200
 201   GENERIC_LMM_ACTION(action).variable =
 202       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
 203
 204   // Must be less than the max bandwidth for all actions
 205   lmm_expand(storage_maxmin_system, STORAGE->constraint,
 206              GENERIC_LMM_ACTION(action).variable, 1.0);
 207
 208   switch(type) {
 209   case OPEN:
 210   case CLOSE:
 211   case STAT:
 212   case UNLINK:
 213   case LS:
 214     break;
 215   case READ:
 216     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
 217                GENERIC_LMM_ACTION(action).variable, 1.0);
 218     break;
 219   case WRITE:
 220     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
 221                GENERIC_LMM_ACTION(action).variable, 1.0);
 222     xbt_dynar_push(((storage_t)storage)->write_actions,&action);
 223     surf_action_ref((surf_action_t) action);
 224     break;
 225   }
 226   action->type = type;
 227   XBT_OUT();
 228   return (surf_action_t) action;
 229 }
 230
 231 static void* storage_create_resource(const char* id, const char* model,const char* type_id,const char* content_name)
 232 {
 233   storage_t storage = NULL;
 234
 235   xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
 236               "Storage '%s' declared several times in the platform file",
 237               id);
 238   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
 239           surf_storage_model, id,NULL);
 240
 241   storage->state_current = SURF_RESOURCE_ON;
 242   storage->used_size = 0;
 243   storage->size = 0;
 244   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
 245
 246   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 247   double Bread  = atof(xbt_dict_get(storage_type->properties,"Bread"));
 248   double Bwrite = atof(xbt_dict_get(storage_type->properties,"Bwrite"));
 249   double Bconnection   = atof(xbt_dict_get(storage_type->properties,"Bconnection"));
 250   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%ld'",Bconnection,Bread,Bwrite,storage_type->size);
 251   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
 252   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
 253   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
 254   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
 255   storage->size = storage_type->size;
 256
 257   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 258
 259   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",
 260       id,
 261       model,
 262       type_id,
 263       storage_type->properties,
 264       Bread);
 265
 266   if(!storage_list) storage_list=xbt_dynar_new(sizeof(char *),NULL);
 267   xbt_dynar_push(storage_list,&storage);
 268
 269   return storage;
 270 }
 271
 272 static void storage_finalize(void)
 273 {
 274   lmm_system_free(storage_maxmin_system);
 275   storage_maxmin_system = NULL;
 276
 277   surf_model_exit(surf_storage_model);
 278   surf_storage_model = NULL;
 279
 280   if(storage_list)
 281     xbt_dynar_free(&storage_list);
 282
 283   xbt_swag_free
 284       (storage_running_action_set_that_does_not_need_being_checked);
 285   storage_running_action_set_that_does_not_need_being_checked = NULL;
 286 }
 287
 288 static void storage_update_actions_state(double now, double delta)
 289 {
 290   surf_action_storage_t action = NULL;
 291   surf_action_storage_t next_action = NULL;
 292   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
 293
 294   // Update the disk usage
 295   // Update the file size
 296   // Foreach action of type write
 297   xbt_swag_foreach_safe(action, next_action, running_actions) {
 298     if(action->type == WRITE)
 299     {
 300       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 301       ((storage_t)(action->storage))->used_size += delta * rate; // disk usage
 302       ((surf_action_t)action)->file->content->stat.size += delta * rate; // file size
 303     }
 304   }
 305
 306   xbt_swag_foreach_safe(action, next_action, running_actions) {
 307
 308     double_update(&(GENERIC_ACTION(action).remains),
 309                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
 310
 311     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
 312       double_update(&(GENERIC_ACTION(action).max_duration), delta);
 313
 314     if(GENERIC_ACTION(action).remains > 0 &&
 315         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
 316         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
 317     {
 318       GENERIC_ACTION(action).finish = surf_get_clock();
 319       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 320     } else if ((GENERIC_ACTION(action).remains <= 0) &&
 321         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
 322     {
 323       GENERIC_ACTION(action).finish = surf_get_clock();
 324       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 325     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
 326                (GENERIC_ACTION(action).max_duration <= 0))
 327     {
 328       GENERIC_ACTION(action).finish = surf_get_clock();
 329       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 330     }
 331   }
 332
 333   return;
 334 }
 335
 336 static double storage_share_resources(double NOW)
 337 {
 338   XBT_DEBUG("storage_share_resources %f",NOW);
 339   s_surf_action_storage_t action;
 340   unsigned int i,j;
 341   storage_t storage;
 342   surf_action_storage_t write_action;
 343
 344   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
 345       xbt_swag_offset(action, generic_lmm_action.variable),
 346       storage_maxmin_system, lmm_solve);
 347
 348   double rate;
 349   // Foreach disk
 350   xbt_dynar_foreach(storage_list,i,storage)
 351   {
 352     rate = 0;
 353     // Foreach write action on disk
 354     xbt_dynar_foreach(storage->write_actions,j,write_action)
 355     {
 356       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
 357     }
 358     if(rate > 0)
 359       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
 360   }
 361
 362   return min_completion;
 363 }
 364
 365 static int storage_resource_used(void *resource_id)
 366 {
 367   THROW_UNIMPLEMENTED;
 368   return 0;
 369 }
 370
 371 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
 372                                  double value, double time)
 373 {
 374   THROW_UNIMPLEMENTED;
 375 }
 376
 377 static int storage_action_unref(surf_action_t action)
 378 {
 379   action->refcount--;
 380   if (!action->refcount) {
 381     xbt_swag_remove(action, action->state_set);
 382     if (((surf_action_lmm_t) action)->variable)
 383       lmm_variable_free(storage_maxmin_system,
 384                         ((surf_action_lmm_t) action)->variable);
 385 #ifdef HAVE_TRACING
 386     xbt_free(action->category);
 387 #endif
 388     surf_action_free(&action);
 389     return 1;
 390   }
 391   return 0;
 392 }
 393
 394 static void storage_action_cancel(surf_action_t action)
 395 {
 396   surf_action_state_set(action, SURF_ACTION_FAILED);
 397   return;
 398 }
 399
 400 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
 401 {
 402   surf_action_state_set(action, state);
 403   return;
 404 }
 405
 406 static void storage_action_suspend(surf_action_t action)
 407 {
 408   XBT_IN("(%p)", action);
 409   if (((surf_action_lmm_t) action)->suspended != 2) {
 410     lmm_update_variable_weight(storage_maxmin_system,
 411                                ((surf_action_lmm_t) action)->variable,
 412                                0.0);
 413     ((surf_action_lmm_t) action)->suspended = 1;
 414   }
 415   XBT_OUT();
 416 }
 417
 418 static void storage_action_resume(surf_action_t action)
 419 {
 420   THROW_UNIMPLEMENTED;
 421 }
 422
 423 static int storage_action_is_suspended(surf_action_t action)
 424 {
 425   return (((surf_action_lmm_t) action)->suspended == 1);
 426 }
 427
 428 static void storage_action_set_max_duration(surf_action_t action, double duration)
 429 {
 430   THROW_UNIMPLEMENTED;
 431 }
 432
 433 static void storage_action_set_priority(surf_action_t action, double priority)
 434 {
 435   THROW_UNIMPLEMENTED;
 436 }
 437
 438 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
 439 {
 440   void* stype = xbt_lib_get_or_null(storage_type_lib,
 441                                     storage->type_id,
 442                                     ROUTING_STORAGE_TYPE_LEVEL);
 443   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 444
 445   // if storage content is not specified use the content of storage_type if exist
 446   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 447     storage->content = ((storage_type_t) stype)->content;
 448     XBT_DEBUG("For disk '%s' content is empty, use the content of storage type '%s'",storage->id,((storage_type_t) stype)->type_id);
 449   }
 450
 451   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",
 452       storage->id,
 453       ((storage_type_t) stype)->model,
 454       ((storage_type_t) stype)->type_id,
 455       storage->content,
 456       ((storage_type_t) stype)->properties);
 457
 458   storage_create_resource(storage->id,
 459      ((storage_type_t) stype)->model,
 460      ((storage_type_t) stype)->type_id,
 461      storage->content);
 462 }
 463
 464 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
 465 {
 466   XBT_DEBUG("parse_mstorage_init");
 467 }
 468
 469 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
 470 {
 471   XBT_DEBUG("parse_storage_type_init");
 472 }
 473
 474 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
 475 {
 476   XBT_DEBUG("parse_mount_init");
 477 }
 478
 479 static void storage_define_callbacks()
 480 {
 481   sg_platf_storage_add_cb(parse_storage_init);
 482   sg_platf_storage_type_add_cb(parse_storage_type_init);
 483   sg_platf_mstorage_add_cb(parse_mstorage_init);
 484   sg_platf_mount_add_cb(parse_mount_init);
 485 }
 486
 487 static void surf_storage_model_init_internal(void)
 488 {
 489   s_surf_action_t action;
 490
 491   XBT_DEBUG("surf_storage_model_init_internal");
 492   surf_storage_model = surf_model_init();
 493
 494   storage_running_action_set_that_does_not_need_being_checked =
 495       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 496
 497   surf_storage_model->name = "Storage";
 498   surf_storage_model->action_unref = storage_action_unref;
 499   surf_storage_model->action_cancel = storage_action_cancel;
 500   surf_storage_model->action_state_set = storage_action_state_set;
 501
 502   surf_storage_model->model_private->finalize = storage_finalize;
 503   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
 504   surf_storage_model->model_private->share_resources = storage_share_resources;
 505   surf_storage_model->model_private->resource_used = storage_resource_used;
 506   surf_storage_model->model_private->update_resource_state = storage_resources_state;
 507
 508   surf_storage_model->suspend = storage_action_suspend;
 509   surf_storage_model->resume = storage_action_resume;
 510   surf_storage_model->is_suspended = storage_action_is_suspended;
 511   surf_storage_model->set_max_duration = storage_action_set_max_duration;
 512   surf_storage_model->set_priority = storage_action_set_priority;
 513
 514   surf_storage_model->extension.storage.open = storage_action_open;
 515   surf_storage_model->extension.storage.close = storage_action_close;
 516   surf_storage_model->extension.storage.read = storage_action_read;
 517   surf_storage_model->extension.storage.write = storage_action_write;
 518   surf_storage_model->extension.storage.stat = storage_action_stat;
 519   surf_storage_model->extension.storage.unlink = storage_action_unlink;
 520   surf_storage_model->extension.storage.ls = storage_action_ls;
 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     if (read){
 598     content = xbt_new0(s_surf_stat_t,1);
 599     if(sscanf(line,"%s %d %s %s %ld %s %s %s",user_rights,&nb,user,group,&size,date,time,path)==8) {
 600         content->stat.date = xbt_strdup(date);
 601         content->stat.group = xbt_strdup(group);
 602         content->stat.size = size;
 603         content->stat.time = xbt_strdup(time);
 604         content->stat.user = xbt_strdup(user);
 605         content->stat.user_rights = xbt_strdup(user_rights);
 606         *used_size += content->stat.size;
 607         xbt_dict_set(parse_content,path,content,NULL);
 608       } else {
 609         xbt_die("Be sure of passing a good format for content file.\n");
 610         // You can generate this kind of file with command line:
 611         // find /path/you/want -type f -exec ls -l {} \; 2>/dev/null > ./content.txt
 612       }
 613     }
 614   }
 615   if (line)
 616       free(line);
 617   fclose(file);
 618   return parse_content;
 619 }
 620
 621 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
 622 {
 623   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 624                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 625
 626   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 627   stype->model = xbt_strdup(storage_type->model);
 628   stype->properties = storage_type->properties;
 629   stype->content = xbt_strdup(storage_type->content);
 630   stype->type_id = xbt_strdup(storage_type->id);
 631   stype->size = storage_type->size * 1000000000; /* storage_type->size is in Gbytes and stype->sizeis in bytes */
 632
 633   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s' content '%s'",
 634       stype->type_id,
 635       stype->model,
 636       storage_type->content);
 637
 638   xbt_lib_set(storage_type_lib,
 639       stype->type_id,
 640       ROUTING_STORAGE_TYPE_LEVEL,
 641       (void *) stype);
 642 }
 643 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 644 {
 645   THROW_UNIMPLEMENTED;
 646 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 647 //  mnt->id = xbt_strdup(mstorage->type_id);
 648 //  mnt->name = xbt_strdup(mstorage->name);
 649 //
 650 //  if(!mount_list){
 651 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 652 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 653 //  }
 654 //  xbt_dynar_push(mount_list,(void *) mnt);
 655 //  free(mnt->id);
 656 //  free(mnt->name);
 657 //  xbt_free(mnt);
 658 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 659 }
 660
 661 static void mount_free(void *p)
 662 {
 663   mount_t mnt = p;
 664   xbt_free(mnt->name);
 665 }
 666
 667 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
 668 {
 669   // Verification of an existing storage
 670 #ifndef NDEBUG
 671   void* storage = xbt_lib_get_or_null(storage_lib, mount->id,ROUTING_STORAGE_LEVEL);
 672 #endif
 673   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->id);
 674
 675   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->id, mount->name);
 676
 677   s_mount_t mnt;
 678   mnt.id = surf_storage_resource_priv(surf_storage_resource_by_name(mount->id));
 679   mnt.name = xbt_strdup(mount->name);
 680
 681   if(!mount_list){
 682     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 683     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 684   }
 685   xbt_dynar_push(mount_list,&mnt);
 686 }
 687
 688 static XBT_INLINE void routing_storage_type_free(void *r)
 689 {
 690   storage_type_t stype = r;
 691   free(stype->model);
 692   free(stype->type_id);
 693   free(stype->content);
 694   xbt_dict_free(&(stype->properties));
 695   free(stype);
 696 }
 697
 698 static XBT_INLINE void surf_storage_resource_free(void *r)
 699 {
 700   // specific to storage
 701   storage_t storage = r;
 702   xbt_dict_free(&storage->content);
 703   xbt_dynar_free(&storage->write_actions);
 704   // generic resource
 705   surf_resource_free(r);
 706 }
 707
 708 static XBT_INLINE void routing_storage_host_free(void *r)
 709 {
 710   xbt_dynar_t dyn = r;
 711   xbt_dynar_free(&dyn);
 712 }
 713
 714 void storage_register_callbacks() {
 715
 716   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
 717   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
 718   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
 719   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
 720
 721   sg_platf_storage_add_cb(storage_parse_storage);
 722   sg_platf_mstorage_add_cb(storage_parse_mstorage);
 723   sg_platf_storage_type_add_cb(storage_parse_storage_type);
 724   sg_platf_mount_add_cb(storage_parse_mount);
 725 }