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(xbt_free);
  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         sg_storage_size_t *psize = xbt_new(sg_storage_size_t,1);
  69         *psize=size;
  70         xbt_dict_set(ls_dict,file,psize,NULL);
  71       }
  72       // Directory
  73       else
  74       {
  75         // if directory does not exist yet in the dictionary
  76         if(!xbt_dict_get_or_null(ls_dict,file))
  77           xbt_dict_set(ls_dict,file,NULL,NULL);
  78       }
  79       xbt_dynar_free(&dyn);
  80     }
  81   }
  82
  83   action->ls_dict = ls_dict;
  84   return action;
  85 }
  86
  87 static surf_action_t storage_action_open(void *storage, const char* mount,
  88                                          const char* path)
  89 {
  90   XBT_DEBUG("\tOpen file '%s'",path);
  91   xbt_dict_t content_dict = ((storage_t)storage)->content;
  92   sg_storage_size_t size, *psize;
  93   psize = (sg_storage_size_t*) xbt_dict_get_or_null(content_dict, path);
  94   if (psize)
  95     size = *psize;
  96   else {
  97   // if file does not exist create an empty file
  98     psize = xbt_new(sg_storage_size_t,1);
  99     size = 0;
 100     *psize = size;
 101     xbt_dict_set(content_dict,path,psize,NULL);
 102     XBT_DEBUG("File '%s' was not found, file created.",path);
 103   }
 104   surf_file_t file = xbt_new0(s_surf_file_t,1);
 105   file->name = xbt_strdup(path);
 106   file->size = size;
 107   file->mount = xbt_strdup(mount);
 108
 109   surf_action_t action = storage_action_execute(storage,0, OPEN);
 110   action->file = (void *)file;
 111   return action;
 112 }
 113
 114 static surf_action_t storage_action_close(void *storage, surf_file_t fd)
 115 {
 116   char *filename = fd->name;
 117   XBT_DEBUG("\tClose file '%s' size '%" PRIu64 "'", filename, fd->size);
 118   // unref write actions from storage
 119   surf_action_storage_t write_action;
 120   unsigned int i;
 121   xbt_dynar_foreach(((storage_t)storage)->write_actions,i,write_action) {
 122     if ((write_action->generic_lmm_action.generic_action.file) == fd) {
 123       xbt_dynar_cursor_rm(((storage_t)storage)->write_actions, &i);
 124       storage_action_unref((surf_action_t) write_action);
 125     }
 126   }
 127   free(fd->name);
 128   free(fd->mount);
 129   xbt_free(fd);
 130   surf_action_t action = storage_action_execute(storage,0, CLOSE);
 131   return action;
 132 }
 133
 134 static surf_action_t storage_action_read(void *storage, surf_file_t fd, sg_storage_size_t size)
 135 {
 136   if(size > fd->size)
 137     size = fd->size;
 138   surf_action_t action = storage_action_execute(storage,size,READ);
 139   return action;
 140 }
 141
 142 static surf_action_t storage_action_write(void *storage, surf_file_t fd, sg_storage_size_t size)
 143 {
 144   char *filename = fd->name;
 145   XBT_DEBUG("\tWrite file '%s' size '%" PRIu64 "/%" PRIu64 "'",
 146             filename, size, fd->size);
 147
 148   surf_action_t action = storage_action_execute(storage,size,WRITE);
 149   action->file = fd;
 150
 151   // If the storage is full
 152   if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
 153     storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 154   }
 155   return action;
 156 }
 157
 158 static surf_action_t storage_action_execute (void *storage, sg_storage_size_t size, e_surf_action_storage_type_t type)
 159 {
 160   surf_action_storage_t action = NULL;
 161   storage_t STORAGE = storage;
 162
 163   XBT_IN("(%s,%" PRIu64, surf_resource_name(STORAGE), size);
 164   action =
 165       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
 166           STORAGE->state_current != SURF_RESOURCE_ON);
 167
 168   // Save the storage on action
 169   action->storage = storage;
 170   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
 171                                                    calloc but it seems to help valgrind... */
 172
 173   GENERIC_LMM_ACTION(action).variable =
 174       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
 175
 176   // Must be less than the max bandwidth for all actions
 177   lmm_expand(storage_maxmin_system, STORAGE->constraint,
 178              GENERIC_LMM_ACTION(action).variable, 1.0);
 179
 180   switch(type) {
 181   case OPEN:
 182   case CLOSE:
 183   case STAT:
 184   case LS:
 185     break;
 186   case READ:
 187     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
 188                GENERIC_LMM_ACTION(action).variable, 1.0);
 189     break;
 190   case WRITE:
 191     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
 192                GENERIC_LMM_ACTION(action).variable, 1.0);
 193     xbt_dynar_push(((storage_t)storage)->write_actions,&action);
 194     surf_action_ref((surf_action_t) action);
 195     break;
 196   }
 197   action->type = type;
 198   XBT_OUT();
 199   return (surf_action_t) action;
 200 }
 201
 202 static xbt_dict_t storage_get_properties(const void *storage)
 203 {
 204   return surf_resource_properties(surf_storage_resource_priv(storage));
 205 }
 206
 207 static xbt_dict_t storage_get_content(void *storage)
 208 {
 209   /* For the moment this action has no cost, but in the future we could take in account access latency of the disk */
 210   /*surf_action_t action = storage_action_execute(storage,0, LS);*/
 211
 212   void *storage_resource = surf_storage_resource_priv(storage);
 213   xbt_dict_t content_dict = xbt_dict_new_homogeneous(NULL);
 214   xbt_dict_cursor_t cursor = NULL;
 215   char *file;
 216   sg_storage_size_t *psize;
 217
 218   xbt_dict_foreach(((storage_t)storage_resource)->content, cursor, file, psize){
 219     xbt_dict_set(content_dict,file,psize,NULL);
 220   }
 221   return content_dict;
 222 }
 223
 224 static sg_storage_size_t storage_get_size(void *storage){
 225   void *storage_resource = surf_storage_resource_priv(storage);
 226   return ((storage_t)storage_resource)->size;
 227 }
 228
 229 static void storage_file_rename(const void *storage, const char *src, const char *dest)
 230 {
 231   void *storage_resource = surf_storage_resource_priv(storage);
 232
 233   sg_storage_size_t *psize;
 234   psize = (sg_storage_size_t*) xbt_dict_get_or_null(((storage_t)storage_resource)->content,src);
 235   if (psize){// src file exists
 236     xbt_dict_remove(((storage_t)storage_resource)->content, src);
 237     xbt_dict_set(((storage_t)storage_resource)->content, dest, psize,NULL);
 238     XBT_DEBUG("Change file name from %s to %s, size '%" PRIu64 "'",src, dest, *psize);
 239   }
 240   else
 241         XBT_DEBUG("File %s doesn't exist",src);
 242 }
 243
 244
 245 static void* storage_create_resource(const char* id, const char* model,
 246     const char* type_id, const char* content_name, const char* content_type, xbt_dict_t properties){
 247   storage_t storage = NULL;
 248
 249   xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
 250               "Storage '%s' declared several times in the platform file",
 251               id);
 252   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
 253           surf_storage_model, id, properties, NULL);
 254
 255   storage->state_current = SURF_RESOURCE_ON;
 256   storage->used_size = 0;
 257   storage->size = 0;
 258   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
 259
 260   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 261   double Bread =
 262       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bread"));
 263   double Bwrite =
 264       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bwrite"));
 265   double Bconnection =
 266       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,
 267                                             "Bconnection"));
 268   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%lu'",Bconnection,Bread,Bwrite,(unsigned long)storage_type->size);
 269   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
 270   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
 271   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
 272   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
 273   storage->content_type = xbt_strdup(content_type);
 274   storage->size = storage_type->size;
 275   storage->type_id = xbt_strdup(type_id);
 276
 277   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 278
 279   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",
 280       id,
 281       model,
 282       type_id,
 283       storage_type->properties,
 284       Bread);
 285
 286   if (!storage_list)
 287     storage_list = xbt_dynar_new(sizeof(char *),NULL);
 288   xbt_dynar_push(storage_list,&storage);
 289
 290   return storage;
 291 }
 292
 293 static void storage_finalize(void)
 294 {
 295   lmm_system_free(storage_maxmin_system);
 296   storage_maxmin_system = NULL;
 297
 298   surf_model_exit(surf_storage_model);
 299   surf_storage_model = NULL;
 300
 301   xbt_dynar_free(&storage_list);
 302
 303   xbt_swag_free
 304       (storage_running_action_set_that_does_not_need_being_checked);
 305   storage_running_action_set_that_does_not_need_being_checked = NULL;
 306 }
 307
 308 static void storage_update_actions_state(double now, double delta)
 309 {
 310   surf_action_storage_t action = NULL;
 311   surf_action_storage_t next_action = NULL;
 312   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
 313
 314
 315   xbt_swag_foreach_safe(action, next_action, running_actions) {
 316     if(action->type == WRITE)
 317     {
 318       // Update the disk usage
 319       // Update the file size
 320       // Update the storage content (with file size)
 321       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 322       /* Hack to avoid rounding differences between x86 and x86_64
 323        * (note that the next sizes are of type sg_storage_size_t). */
 324       long incr = delta * rate + MAXMIN_PRECISION;
 325       ((storage_t)(action->storage))->used_size += incr; // disk usage
 326       ((surf_action_t)action)->file->size += incr; // file size
 327
 328       sg_storage_size_t *psize = xbt_new(sg_storage_size_t,1);
 329       *psize = ((surf_action_t)action)->file->size;
 330
 331       xbt_dict_t content_dict = ((storage_t)(action->storage))->content;
 332       xbt_dict_set(content_dict,((surf_action_t)action)->file->name,psize,NULL);
 333     }
 334
 335     double_update(&(GENERIC_ACTION(action).remains),
 336                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
 337
 338     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
 339       double_update(&(GENERIC_ACTION(action).max_duration), delta);
 340
 341     if(GENERIC_ACTION(action).remains > 0 &&
 342         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
 343         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
 344     {
 345       GENERIC_ACTION(action).finish = surf_get_clock();
 346       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 347     } else if ((GENERIC_ACTION(action).remains <= 0) &&
 348         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
 349     {
 350       GENERIC_ACTION(action).finish = surf_get_clock();
 351       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 352     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
 353                (GENERIC_ACTION(action).max_duration <= 0))
 354     {
 355       GENERIC_ACTION(action).finish = surf_get_clock();
 356       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 357     }
 358   }
 359
 360   return;
 361 }
 362
 363 static double storage_share_resources(double NOW)
 364 {
 365   XBT_DEBUG("storage_share_resources %f",NOW);
 366   s_surf_action_storage_t action;
 367   unsigned int i,j;
 368   storage_t storage;
 369   surf_action_storage_t write_action;
 370
 371   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
 372       xbt_swag_offset(action, generic_lmm_action.variable),
 373       storage_maxmin_system, lmm_solve);
 374
 375   double rate;
 376   // Foreach disk
 377   xbt_dynar_foreach(storage_list,i,storage)
 378   {
 379     rate = 0;
 380     // Foreach write action on disk
 381     xbt_dynar_foreach(storage->write_actions,j,write_action)
 382     {
 383       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
 384     }
 385     if(rate > 0)
 386       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
 387   }
 388
 389   return min_completion;
 390 }
 391
 392 static int storage_resource_used(void *resource_id)
 393 {
 394   THROW_UNIMPLEMENTED;
 395   return 0;
 396 }
 397
 398 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
 399                                  double value, double time)
 400 {
 401   THROW_UNIMPLEMENTED;
 402 }
 403
 404 static int storage_action_unref(surf_action_t action)
 405 {
 406   action->refcount--;
 407   if (!action->refcount) {
 408     xbt_swag_remove(action, action->state_set);
 409     if (((surf_action_lmm_t) action)->variable)
 410       lmm_variable_free(storage_maxmin_system,
 411                         ((surf_action_lmm_t) action)->variable);
 412 #ifdef HAVE_TRACING
 413     xbt_free(action->category);
 414 #endif
 415     surf_action_free(&action);
 416     return 1;
 417   }
 418   return 0;
 419 }
 420
 421 static void storage_action_cancel(surf_action_t action)
 422 {
 423   surf_action_state_set(action, SURF_ACTION_FAILED);
 424   return;
 425 }
 426
 427 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
 428 {
 429   surf_action_state_set(action, state);
 430   return;
 431 }
 432
 433 static void storage_action_suspend(surf_action_t action)
 434 {
 435   XBT_IN("(%p)", action);
 436   if (((surf_action_lmm_t) action)->suspended != 2) {
 437     lmm_update_variable_weight(storage_maxmin_system,
 438                                ((surf_action_lmm_t) action)->variable,
 439                                0.0);
 440     ((surf_action_lmm_t) action)->suspended = 1;
 441   }
 442   XBT_OUT();
 443 }
 444
 445 static void storage_action_resume(surf_action_t action)
 446 {
 447   THROW_UNIMPLEMENTED;
 448 }
 449
 450 static int storage_action_is_suspended(surf_action_t action)
 451 {
 452   return (((surf_action_lmm_t) action)->suspended == 1);
 453 }
 454
 455 static void storage_action_set_max_duration(surf_action_t action, double duration)
 456 {
 457   THROW_UNIMPLEMENTED;
 458 }
 459
 460 static void storage_action_set_priority(surf_action_t action, double priority)
 461 {
 462   THROW_UNIMPLEMENTED;
 463 }
 464
 465 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
 466 {
 467   void* stype = xbt_lib_get_or_null(storage_type_lib,
 468                                     storage->type_id,
 469                                     ROUTING_STORAGE_TYPE_LEVEL);
 470   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 471
 472   // if storage content is not specified use the content of storage_type if exist
 473   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 474     storage->content = ((storage_type_t) stype)->content;
 475     storage->content_type = ((storage_type_t) stype)->content_type;
 476     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 477         storage->id,((storage_type_t) stype)->content_type,
 478         ((storage_type_t) stype)->type_id);
 479   }
 480
 481   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 482       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 483       "\n\t\tproperties '%p'\n",
 484       storage->id,
 485       ((storage_type_t) stype)->model,
 486       ((storage_type_t) stype)->type_id,
 487       storage->content,
 488       storage->content_type,
 489       ((storage_type_t) stype)->properties);
 490
 491   storage_create_resource(storage->id,
 492      ((storage_type_t) stype)->model,
 493      ((storage_type_t) stype)->type_id,
 494      storage->content,
 495      storage->content_type,
 496      storage->properties);
 497 }
 498
 499 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
 500 {
 501   XBT_DEBUG("parse_mstorage_init");
 502 }
 503
 504 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
 505 {
 506   XBT_DEBUG("parse_storage_type_init");
 507 }
 508
 509 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
 510 {
 511   XBT_DEBUG("parse_mount_init");
 512 }
 513
 514 static void storage_define_callbacks()
 515 {
 516   sg_platf_storage_add_cb(parse_storage_init);
 517   sg_platf_storage_type_add_cb(parse_storage_type_init);
 518   sg_platf_mstorage_add_cb(parse_mstorage_init);
 519   sg_platf_mount_add_cb(parse_mount_init);
 520 }
 521
 522 static void surf_storage_model_init_internal(void)
 523 {
 524   s_surf_action_t action;
 525
 526   XBT_DEBUG("surf_storage_model_init_internal");
 527   surf_storage_model = surf_model_init();
 528
 529   storage_running_action_set_that_does_not_need_being_checked =
 530       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 531
 532   surf_storage_model->name = "Storage";
 533   surf_storage_model->action_unref = storage_action_unref;
 534   surf_storage_model->action_cancel = storage_action_cancel;
 535   surf_storage_model->action_state_set = storage_action_state_set;
 536
 537   surf_storage_model->model_private->finalize = storage_finalize;
 538   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
 539   surf_storage_model->model_private->share_resources = storage_share_resources;
 540   surf_storage_model->model_private->resource_used = storage_resource_used;
 541   surf_storage_model->model_private->update_resource_state = storage_resources_state;
 542
 543   surf_storage_model->suspend = storage_action_suspend;
 544   surf_storage_model->resume = storage_action_resume;
 545   surf_storage_model->is_suspended = storage_action_is_suspended;
 546   surf_storage_model->set_max_duration = storage_action_set_max_duration;
 547   surf_storage_model->set_priority = storage_action_set_priority;
 548
 549   surf_storage_model->extension.storage.open = storage_action_open;
 550   surf_storage_model->extension.storage.close = storage_action_close;
 551   surf_storage_model->extension.storage.read = storage_action_read;
 552   surf_storage_model->extension.storage.write = storage_action_write;
 553   surf_storage_model->extension.storage.ls = storage_action_ls;
 554   surf_storage_model->extension.storage.get_properties = storage_get_properties;
 555   surf_storage_model->extension.storage.get_content = storage_get_content;
 556   surf_storage_model->extension.storage.get_size = storage_get_size;
 557   surf_storage_model->extension.storage.rename = storage_file_rename;
 558   if (!storage_maxmin_system) {
 559     storage_maxmin_system = lmm_system_new(storage_selective_update);
 560   }
 561 }
 562
 563 void surf_storage_model_init_default(void)
 564 {
 565   surf_storage_model_init_internal();
 566   storage_define_callbacks();
 567
 568   xbt_dynar_push(model_list, &surf_storage_model);
 569 }
 570
 571 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
 572 {
 573   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 574                "Reading a storage, processing unit \"%s\" already exists", storage->id);
 575
 576   // Verification of an existing type_id
 577 #ifndef NDEBUG
 578   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 579 #endif
 580   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 581
 582   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 583       storage->id,
 584       storage->type_id,
 585       storage->content);
 586
 587   xbt_lib_set(storage_lib,
 588       storage->id,
 589       ROUTING_STORAGE_LEVEL,
 590       (void *) xbt_strdup(storage->type_id));
 591 }
 592
 593 static xbt_dict_t parse_storage_content(char *filename, sg_storage_size_t *used_size)
 594 {
 595   *used_size = 0;
 596   if ((!filename) || (strcmp(filename, "") == 0))
 597     return NULL;
 598
 599   xbt_dict_t parse_content = xbt_dict_new_homogeneous(xbt_free);
 600   FILE *file = NULL;
 601
 602   file = surf_fopen(filename, "r");
 603   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
 604               xbt_str_join(surf_path, ":"));
 605
 606   char *line = NULL;
 607   size_t len = 0;
 608   ssize_t read;
 609   char path[1024];
 610   sg_storage_size_t size;
 611
 612   while ((read = xbt_getline(&line, &len, file)) != -1) {
 613     if (read){
 614     if (sscanf(line,"%s %" SCNu64, path, &size) == 2) {
 615         *used_size += size;
 616         sg_storage_size_t *psize = xbt_new(sg_storage_size_t, 1);
 617         *psize = size;
 618         xbt_dict_set(parse_content,path,psize,NULL);
 619       } else {
 620         xbt_die("Be sure of passing a good format for content file.\n");
 621       }
 622     }
 623   }
 624   free(line);
 625   fclose(file);
 626   return parse_content;
 627 }
 628
 629 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
 630 {
 631   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 632                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 633
 634   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 635   stype->model = xbt_strdup(storage_type->model);
 636   stype->properties = storage_type->properties;
 637   stype->content = xbt_strdup(storage_type->content);
 638   stype->content_type = xbt_strdup(storage_type->content_type);
 639   stype->type_id = xbt_strdup(storage_type->id);
 640   stype->size = storage_type->size;
 641
 642   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 643       "content '%s', and content_type '%s'",
 644       stype->type_id,
 645       stype->model,
 646       storage_type->content,
 647       storage_type->content_type);
 648
 649   xbt_lib_set(storage_type_lib,
 650       stype->type_id,
 651       ROUTING_STORAGE_TYPE_LEVEL,
 652       (void *) stype);
 653 }
 654 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 655 {
 656   THROW_UNIMPLEMENTED;
 657 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 658 //  mnt->id = xbt_strdup(mstorage->type_id);
 659 //  mnt->name = xbt_strdup(mstorage->name);
 660 //
 661 //  if(!mount_list){
 662 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 663 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 664 //  }
 665 //  xbt_dynar_push(mount_list,(void *) mnt);
 666 //  free(mnt->id);
 667 //  free(mnt->name);
 668 //  xbt_free(mnt);
 669 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 670 }
 671
 672 static void mount_free(void *p)
 673 {
 674   mount_t mnt = p;
 675   xbt_free(mnt->name);
 676 }
 677
 678 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
 679 {
 680   // Verification of an existing storage
 681 #ifndef NDEBUG
 682   void* storage = xbt_lib_get_or_null(storage_lib, mount->storageId,ROUTING_STORAGE_LEVEL);
 683 #endif
 684   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->storageId);
 685
 686   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 687
 688   s_mount_t mnt;
 689   mnt.storage =
 690     surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 691   mnt.name = xbt_strdup(mount->name);
 692
 693   if(!mount_list){
 694     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 695     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 696   }
 697   xbt_dynar_push(mount_list,&mnt);
 698 }
 699
 700 static XBT_INLINE void routing_storage_type_free(void *r)
 701 {
 702   storage_type_t stype = r;
 703   free(stype->model);
 704   free(stype->type_id);
 705   free(stype->content);
 706   free(stype->content_type);
 707   xbt_dict_free(&(stype->properties));
 708   free(stype);
 709 }
 710
 711 static XBT_INLINE void surf_storage_resource_free(void *r)
 712 {
 713   // specific to storage
 714   storage_t storage = r;
 715   xbt_dict_free(&storage->content);
 716   xbt_dynar_free(&storage->write_actions);
 717   free(storage->type_id);
 718   free(storage->content_type);
 719   // generic resource
 720   surf_resource_free(r);
 721 }
 722
 723 static XBT_INLINE void routing_storage_host_free(void *r)
 724 {
 725   xbt_dynar_t dyn = r;
 726   xbt_dynar_free(&dyn);
 727 }
 728
 729 void storage_register_callbacks() {
 730
 731   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
 732   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
 733   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
 734   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
 735
 736   sg_platf_storage_add_cb(storage_parse_storage);
 737   sg_platf_mstorage_add_cb(storage_parse_mstorage);
 738   sg_platf_storage_type_add_cb(storage_parse_storage_type);
 739   sg_platf_mount_add_cb(storage_parse_mount);
 740 }
 741