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   free(fp->name);
 144   fp->content = NULL;
 145   xbt_free(fp);
 146   surf_action_t action = storage_action_execute(storage,0, CLOSE);
 147   return action;
 148 }
 149
 150 static surf_action_t storage_action_read(void *storage, void* ptr, double size, size_t nmemb, surf_file_t stream)
 151 {
 152   surf_stat_t content = stream->content;
 153   if(size > content->stat.size)
 154     size = content->stat.size;
 155   surf_action_t action = storage_action_execute(storage,size,READ);
 156   return action;
 157 }
 158
 159 static surf_action_t storage_action_write(void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 160 {
 161   char *filename = stream->name;
 162   surf_stat_t content = stream->content;
 163   XBT_DEBUG("\tWrite file '%s' size '%zu/%f'",filename,size,content->stat.size);
 164
 165   surf_action_t action = storage_action_execute(storage,size,WRITE);
 166   action->file = stream;
 167
 168   // If the storage is full
 169   if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
 170     storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 171   }
 172   return action;
 173 }
 174
 175 static surf_action_t storage_action_execute (void *storage, double size, e_surf_action_storage_type_t type)
 176 {
 177   surf_action_storage_t action = NULL;
 178   storage_t STORAGE = storage;
 179
 180   XBT_IN("(%s,%f)", surf_resource_name(STORAGE), size);
 181   action =
 182       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
 183           STORAGE->state_current != SURF_RESOURCE_ON);
 184
 185   // Save the storage on action
 186   action->storage = storage;
 187   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
 188                                                    calloc but it seems to help valgrind... */
 189
 190   GENERIC_LMM_ACTION(action).variable =
 191       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
 192
 193   // Must be less than the max bandwidth for all actions
 194   lmm_expand(storage_maxmin_system, STORAGE->constraint,
 195              GENERIC_LMM_ACTION(action).variable, 1.0);
 196
 197   switch(type) {
 198   case OPEN:
 199   case CLOSE:
 200   case STAT:
 201   case UNLINK:
 202   case LS:
 203     break;
 204   case READ:
 205     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
 206                GENERIC_LMM_ACTION(action).variable, 1.0);
 207     break;
 208   case WRITE:
 209     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
 210                GENERIC_LMM_ACTION(action).variable, 1.0);
 211     xbt_dynar_push(((storage_t)storage)->write_actions,&action);
 212     break;
 213   }
 214   action->type = type;
 215   XBT_OUT();
 216   return (surf_action_t) action;
 217 }
 218
 219 static void* storage_create_resource(const char* id, const char* model,const char* type_id,const char* content_name)
 220 {
 221   storage_t storage = NULL;
 222
 223   xbt_assert(!surf_storage_resource_by_name(id),
 224               "Storage '%s' declared several times in the platform file",
 225               id);
 226   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
 227           surf_storage_model, id,NULL);
 228
 229   storage->state_current = SURF_RESOURCE_ON;
 230   storage->used_size = 0;
 231   storage->size = 0;
 232   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
 233
 234   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 235   double Bread  = atof(xbt_dict_get(storage_type->properties,"Bread"));
 236   double Bwrite = atof(xbt_dict_get(storage_type->properties,"Bwrite"));
 237   double Bconnection   = atof(xbt_dict_get(storage_type->properties,"Bconnection"));
 238   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%ld'",Bconnection,Bread,Bwrite,storage_type->size);
 239   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
 240   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
 241   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
 242   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
 243   storage->size = storage_type->size;
 244
 245   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 246
 247   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",
 248       id,
 249       model,
 250       type_id,
 251       storage_type->properties,
 252       Bread);
 253
 254   if(!storage_list) storage_list=xbt_dynar_new(sizeof(char *),NULL);
 255   xbt_dynar_push(storage_list,&storage);
 256
 257   return storage;
 258 }
 259
 260 static void storage_finalize(void)
 261 {
 262   lmm_system_free(storage_maxmin_system);
 263   storage_maxmin_system = NULL;
 264
 265   surf_model_exit(surf_storage_model);
 266   surf_storage_model = NULL;
 267
 268   if(storage_list)
 269     xbt_dynar_free(&storage_list);
 270
 271   xbt_swag_free
 272       (storage_running_action_set_that_does_not_need_being_checked);
 273   storage_running_action_set_that_does_not_need_being_checked = NULL;
 274 }
 275
 276 static void storage_update_actions_state(double now, double delta)
 277 {
 278   surf_action_storage_t action = NULL;
 279   surf_action_storage_t next_action = NULL;
 280   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
 281
 282   // Update the disk usage
 283   // Update the file size
 284   // Foreach action of type write
 285   xbt_swag_foreach_safe(action, next_action, running_actions) {
 286     if(action->type == WRITE)
 287     {
 288       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 289       ((storage_t)(action->storage))->used_size += delta * rate; // disk usage
 290       ((surf_action_t)action)->file->content->stat.size += delta * rate; // file size
 291     }
 292   }
 293
 294   xbt_swag_foreach_safe(action, next_action, running_actions) {
 295
 296     double_update(&(GENERIC_ACTION(action).remains),
 297                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
 298
 299     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
 300       double_update(&(GENERIC_ACTION(action).max_duration), delta);
 301
 302     if(GENERIC_ACTION(action).remains > 0 &&
 303         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
 304         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
 305     {
 306       GENERIC_ACTION(action).finish = surf_get_clock();
 307       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 308     } else if ((GENERIC_ACTION(action).remains <= 0) &&
 309         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
 310     {
 311       GENERIC_ACTION(action).finish = surf_get_clock();
 312       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 313     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
 314                (GENERIC_ACTION(action).max_duration <= 0))
 315     {
 316       GENERIC_ACTION(action).finish = surf_get_clock();
 317       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 318     }
 319   }
 320
 321   return;
 322 }
 323
 324 static double storage_share_resources(double NOW)
 325 {
 326   XBT_DEBUG("storage_share_resources %f",NOW);
 327   s_surf_action_storage_t action;
 328   unsigned int i,j;
 329   storage_t storage;
 330   surf_action_storage_t write_action;
 331
 332   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
 333       xbt_swag_offset(action, generic_lmm_action.variable),
 334       storage_maxmin_system, lmm_solve);
 335
 336   double rate;
 337   // Foreach disk
 338   xbt_dynar_foreach(storage_list,i,storage)
 339   {
 340     rate = 0;
 341     // Foreach write action on disk
 342     xbt_dynar_foreach(storage->write_actions,j,write_action)
 343     {
 344       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
 345     }
 346     if(rate > 0)
 347       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
 348   }
 349
 350   return min_completion;
 351 }
 352
 353 static int storage_resource_used(void *resource_id)
 354 {
 355   THROW_UNIMPLEMENTED;
 356   return 0;
 357 }
 358
 359 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
 360                                  double value, double time)
 361 {
 362   THROW_UNIMPLEMENTED;
 363 }
 364
 365 static int storage_action_unref(surf_action_t action)
 366 {
 367   action->refcount--;
 368   if (!action->refcount) {
 369     xbt_swag_remove(action, action->state_set);
 370     if (((surf_action_lmm_t) action)->variable)
 371       lmm_variable_free(storage_maxmin_system,
 372                         ((surf_action_lmm_t) action)->variable);
 373 #ifdef HAVE_TRACING
 374     xbt_free(action->category);
 375 #endif
 376     surf_action_free(&action);
 377     return 1;
 378   }
 379   return 0;
 380 }
 381
 382 static void storage_action_cancel(surf_action_t action)
 383 {
 384   surf_action_state_set(action, SURF_ACTION_FAILED);
 385   return;
 386 }
 387
 388 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
 389 {
 390   surf_action_state_set(action, state);
 391   return;
 392 }
 393
 394 static void storage_action_suspend(surf_action_t action)
 395 {
 396   XBT_IN("(%p)", action);
 397   if (((surf_action_lmm_t) action)->suspended != 2) {
 398     lmm_update_variable_weight(storage_maxmin_system,
 399                                ((surf_action_lmm_t) action)->variable,
 400                                0.0);
 401     ((surf_action_lmm_t) action)->suspended = 1;
 402   }
 403   XBT_OUT();
 404 }
 405
 406 static void storage_action_resume(surf_action_t action)
 407 {
 408   THROW_UNIMPLEMENTED;
 409 }
 410
 411 static int storage_action_is_suspended(surf_action_t action)
 412 {
 413   return (((surf_action_lmm_t) action)->suspended == 1);
 414 }
 415
 416 static void storage_action_set_max_duration(surf_action_t action, double duration)
 417 {
 418   THROW_UNIMPLEMENTED;
 419 }
 420
 421 static void storage_action_set_priority(surf_action_t action, double priority)
 422 {
 423   THROW_UNIMPLEMENTED;
 424 }
 425
 426 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
 427 {
 428   void* stype = xbt_lib_get_or_null(storage_type_lib,
 429                                     storage->type_id,
 430                                     ROUTING_STORAGE_TYPE_LEVEL);
 431   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 432
 433   // if storage content is not specified use the content of storage_type if exist
 434   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 435     storage->content = ((storage_type_t) stype)->content;
 436     XBT_DEBUG("For disk '%s' content is empty, use the content of storage type '%s'",storage->id,((storage_type_t) stype)->type_id);
 437   }
 438
 439   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",
 440       storage->id,
 441       ((storage_type_t) stype)->model,
 442       ((storage_type_t) stype)->type_id,
 443       storage->content,
 444       ((storage_type_t) stype)->properties);
 445
 446   storage_create_resource(storage->id,
 447      ((storage_type_t) stype)->model,
 448      ((storage_type_t) stype)->type_id,
 449      storage->content);
 450 }
 451
 452 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
 453 {
 454   XBT_DEBUG("parse_mstorage_init");
 455 }
 456
 457 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
 458 {
 459   XBT_DEBUG("parse_storage_type_init");
 460 }
 461
 462 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
 463 {
 464   XBT_DEBUG("parse_mount_init");
 465 }
 466
 467 static void storage_define_callbacks()
 468 {
 469   sg_platf_storage_add_cb(parse_storage_init);
 470   sg_platf_storage_type_add_cb(parse_storage_type_init);
 471   sg_platf_mstorage_add_cb(parse_mstorage_init);
 472   sg_platf_mount_add_cb(parse_mount_init);
 473 }
 474
 475 static void surf_storage_model_init_internal(void)
 476 {
 477   s_surf_action_t action;
 478
 479   XBT_DEBUG("surf_storage_model_init_internal");
 480   surf_storage_model = surf_model_init();
 481
 482   storage_running_action_set_that_does_not_need_being_checked =
 483       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 484
 485   surf_storage_model->name = "Storage";
 486   surf_storage_model->action_unref = storage_action_unref;
 487   surf_storage_model->action_cancel = storage_action_cancel;
 488   surf_storage_model->action_state_set = storage_action_state_set;
 489
 490   surf_storage_model->model_private->finalize = storage_finalize;
 491   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
 492   surf_storage_model->model_private->share_resources = storage_share_resources;
 493   surf_storage_model->model_private->resource_used = storage_resource_used;
 494   surf_storage_model->model_private->update_resource_state = storage_resources_state;
 495
 496   surf_storage_model->suspend = storage_action_suspend;
 497   surf_storage_model->resume = storage_action_resume;
 498   surf_storage_model->is_suspended = storage_action_is_suspended;
 499   surf_storage_model->set_max_duration = storage_action_set_max_duration;
 500   surf_storage_model->set_priority = storage_action_set_priority;
 501
 502   surf_storage_model->extension.storage.open = storage_action_open;
 503   surf_storage_model->extension.storage.close = storage_action_close;
 504   surf_storage_model->extension.storage.read = storage_action_read;
 505   surf_storage_model->extension.storage.write = storage_action_write;
 506   surf_storage_model->extension.storage.stat = storage_action_stat;
 507   surf_storage_model->extension.storage.unlink = storage_action_unlink;
 508   surf_storage_model->extension.storage.ls = storage_action_ls;
 509   surf_storage_model->extension.storage.create_resource = storage_create_resource;
 510
 511   if (!storage_maxmin_system) {
 512     storage_maxmin_system = lmm_system_new(storage_selective_update);
 513   }
 514
 515 }
 516
 517 void surf_storage_model_init_default(void)
 518 {
 519   surf_storage_model_init_internal();
 520   storage_define_callbacks();
 521
 522   xbt_dynar_push(model_list, &surf_storage_model);
 523 }
 524
 525 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
 526 {
 527   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 528                "Reading a storage, processing unit \"%s\" already exists", storage->id);
 529
 530   // Verification of an existing type_id
 531 #ifndef NDEBUG
 532   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 533 #endif
 534   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 535
 536   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 537       storage->id,
 538       storage->type_id,
 539       storage->content);
 540
 541   xbt_lib_set(storage_lib,
 542       storage->id,
 543       ROUTING_STORAGE_LEVEL,
 544       (void *) xbt_strdup(storage->type_id));
 545 }
 546
 547 static void free_storage_content(void *p)
 548 {
 549   surf_stat_t content = p;
 550   free(content->stat.date);
 551   free(content->stat.group);
 552   free(content->stat.time);
 553   free(content->stat.user);
 554   free(content->stat.user_rights);
 555   free(content);
 556 }
 557
 558 static xbt_dict_t parse_storage_content(char *filename, unsigned long *used_size)
 559 {
 560   *used_size = 0;
 561   if ((!filename) || (strcmp(filename, "") == 0))
 562     return NULL;
 563
 564   xbt_dict_t parse_content = xbt_dict_new_homogeneous(free_storage_content);
 565   FILE *file = NULL;
 566
 567   file = surf_fopen(filename, "r");
 568   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
 569               xbt_str_join(surf_path, ":"));
 570
 571   char *line = NULL;
 572   size_t len = 0;
 573   ssize_t read;
 574   char user_rights[12];
 575   char user[100];
 576   char group[100];
 577   char date[12];
 578   char time[12];
 579   char path[1024];
 580   int nb;
 581   unsigned long size;
 582
 583   surf_stat_t content;
 584
 585   while ((read = getline(&line, &len, file)) != -1) {
 586     content = xbt_new0(s_surf_stat_t,1);
 587     if(sscanf(line,"%s %d %s %s %ld %s %s %s",user_rights,&nb,user,group,&size,date,time,path)==8) {
 588       content->stat.date = xbt_strdup(date);
 589       content->stat.group = xbt_strdup(group);
 590       content->stat.size = size;
 591       content->stat.time = xbt_strdup(time);
 592       content->stat.user = xbt_strdup(user);
 593       content->stat.user_rights = xbt_strdup(user_rights);
 594       *used_size += content->stat.size;
 595       xbt_dict_set(parse_content,path,content,NULL);
 596     } else {
 597       xbt_die("Be sure of passing a good format for content file.\n");
 598       // You can generate this kind of file with command line:
 599       // find /path/you/want -type f -exec ls -l {} \; 2>/dev/null > ./content.txt
 600     }
 601   }
 602   if (line)
 603       free(line);
 604   fclose(file);
 605   return parse_content;
 606 }
 607
 608 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
 609 {
 610   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 611                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 612
 613   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 614   stype->model = xbt_strdup(storage_type->model);
 615   stype->properties = storage_type->properties;
 616   stype->content = xbt_strdup(storage_type->content);
 617   stype->type_id = xbt_strdup(storage_type->id);
 618   stype->size = storage_type->size * 1000000000; /* storage_type->size is in Gbytes and stype->sizeis in bytes */
 619
 620   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s' content '%s'",
 621       stype->type_id,
 622       stype->model,
 623       storage_type->content);
 624
 625   xbt_lib_set(storage_type_lib,
 626       stype->type_id,
 627       ROUTING_STORAGE_TYPE_LEVEL,
 628       (void *) stype);
 629 }
 630 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 631 {
 632   THROW_UNIMPLEMENTED;
 633 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 634 //  mnt->id = xbt_strdup(mstorage->type_id);
 635 //  mnt->name = xbt_strdup(mstorage->name);
 636 //
 637 //  if(!mount_list){
 638 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 639 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 640 //  }
 641 //  xbt_dynar_push(mount_list,(void *) mnt);
 642 //  free(mnt->id);
 643 //  free(mnt->name);
 644 //  xbt_free(mnt);
 645 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 646 }
 647
 648 static void mount_free(void *p)
 649 {
 650   mount_t mnt = p;
 651   xbt_free(mnt->name);
 652 }
 653
 654 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
 655 {
 656   // Verification of an existing storage
 657 #ifndef NDEBUG
 658   void* storage = xbt_lib_get_or_null(storage_lib, mount->id,ROUTING_STORAGE_LEVEL);
 659 #endif
 660   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->id);
 661
 662   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->id, mount->name);
 663
 664   s_mount_t mnt;
 665   mnt.id = surf_storage_resource_by_name(mount->id);
 666   mnt.name = xbt_strdup(mount->name);
 667
 668   if(!mount_list){
 669     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 670     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 671   }
 672   xbt_dynar_push(mount_list,&mnt);
 673 }
 674
 675 static XBT_INLINE void routing_storage_type_free(void *r)
 676 {
 677   storage_type_t stype = r;
 678   free(stype->model);
 679   free(stype->type_id);
 680   free(stype->content);
 681   xbt_dict_free(&(stype->properties));
 682   free(stype);
 683 }
 684
 685 static XBT_INLINE void surf_storage_resource_free(void *r)
 686 {
 687   // specific to storage
 688   storage_t storage = r;
 689   xbt_dict_free(&storage->content);
 690   xbt_dynar_free(&storage->write_actions);
 691   // generic resource
 692   surf_resource_free(r);
 693 }
 694
 695 static XBT_INLINE void routing_storage_host_free(void *r)
 696 {
 697   xbt_dynar_t dyn = r;
 698   xbt_dynar_free(&dyn);
 699 }
 700
 701 void storage_register_callbacks() {
 702
 703   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
 704   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
 705   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
 706   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
 707
 708   sg_platf_storage_add_cb(storage_parse_storage);
 709   sg_platf_mstorage_add_cb(storage_parse_mstorage);
 710   sg_platf_storage_type_add_cb(storage_parse_storage_type);
 711   sg_platf_mount_add_cb(storage_parse_mount);
 712 }