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(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, *new_psize;
 234   psize = (sg_storage_size_t*) xbt_dict_get_or_null(((storage_t)storage_resource)->content,src);
 235   new_psize = xbt_new(sg_storage_size_t, 1);
 236   *new_psize = *psize;
 237   if (psize){// src file exists
 238     xbt_dict_remove(((storage_t)storage_resource)->content, src);
 239     xbt_dict_set(((storage_t)storage_resource)->content, dest, new_psize,NULL);
 240     XBT_DEBUG("Change file name from %s to %s, size '%" PRIu64 "'",src, dest, *psize);
 241   }
 242   else
 243     XBT_DEBUG("File %s doesn't exist",src);
 244 }
 245
 246
 247 static void* storage_create_resource(const char* id, const char* model,
 248     const char* type_id, const char* content_name, const char* content_type, xbt_dict_t properties){
 249   storage_t storage = NULL;
 250
 251   xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
 252               "Storage '%s' declared several times in the platform file",
 253               id);
 254   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
 255           surf_storage_model, id, properties, NULL);
 256
 257   storage->state_current = SURF_RESOURCE_ON;
 258   storage->used_size = 0;
 259   storage->size = 0;
 260   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
 261
 262   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 263   double Bread =
 264       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bread"));
 265   double Bwrite =
 266       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bwrite"));
 267   double Bconnection =
 268       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,
 269                                             "Bconnection"));
 270   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%lu'",Bconnection,Bread,Bwrite,(unsigned long)storage_type->size);
 271   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
 272   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
 273   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
 274   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
 275   storage->content_type = xbt_strdup(content_type);
 276   storage->size = storage_type->size;
 277   storage->type_id = xbt_strdup(type_id);
 278
 279   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 280
 281   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",
 282       id,
 283       model,
 284       type_id,
 285       storage_type->properties,
 286       Bread);
 287
 288   if (!storage_list)
 289     storage_list = xbt_dynar_new(sizeof(char *),NULL);
 290   xbt_dynar_push(storage_list,&storage);
 291
 292   return storage;
 293 }
 294
 295 static void storage_finalize(void)
 296 {
 297   lmm_system_free(storage_maxmin_system);
 298   storage_maxmin_system = NULL;
 299
 300   surf_model_exit(surf_storage_model);
 301   surf_storage_model = NULL;
 302
 303   xbt_dynar_free(&storage_list);
 304
 305   xbt_swag_free
 306       (storage_running_action_set_that_does_not_need_being_checked);
 307   storage_running_action_set_that_does_not_need_being_checked = NULL;
 308 }
 309
 310 static void storage_update_actions_state(double now, double delta)
 311 {
 312   surf_action_storage_t action = NULL;
 313   surf_action_storage_t next_action = NULL;
 314   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
 315
 316
 317   xbt_swag_foreach_safe(action, next_action, running_actions) {
 318     if(action->type == WRITE)
 319     {
 320       // Update the disk usage
 321       // Update the file size
 322       // Update the storage content (with file size)
 323       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
 324       /* Hack to avoid rounding differences between x86 and x86_64
 325        * (note that the next sizes are of type sg_storage_size_t). */
 326       long incr = delta * rate + MAXMIN_PRECISION;
 327       ((storage_t)(action->storage))->used_size += incr; // disk usage
 328       ((surf_action_t)action)->file->size += incr; // file size
 329
 330       sg_storage_size_t *psize = xbt_new(sg_storage_size_t,1);
 331       *psize = ((surf_action_t)action)->file->size;
 332
 333       xbt_dict_t content_dict = ((storage_t)(action->storage))->content;
 334       xbt_dict_set(content_dict,((surf_action_t)action)->file->name,psize,NULL);
 335     }
 336
 337     double_update(&(GENERIC_ACTION(action).remains),
 338                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
 339
 340     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
 341       double_update(&(GENERIC_ACTION(action).max_duration), delta);
 342
 343     if(GENERIC_ACTION(action).remains > 0 &&
 344         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
 345         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
 346     {
 347       GENERIC_ACTION(action).finish = surf_get_clock();
 348       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
 349     } else if ((GENERIC_ACTION(action).remains <= 0) &&
 350         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
 351     {
 352       GENERIC_ACTION(action).finish = surf_get_clock();
 353       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 354     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
 355                (GENERIC_ACTION(action).max_duration <= 0))
 356     {
 357       GENERIC_ACTION(action).finish = surf_get_clock();
 358       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
 359     }
 360   }
 361
 362   return;
 363 }
 364
 365 static double storage_share_resources(double NOW)
 366 {
 367   XBT_DEBUG("storage_share_resources %f",NOW);
 368   s_surf_action_storage_t action;
 369   unsigned int i,j;
 370   storage_t storage;
 371   surf_action_storage_t write_action;
 372
 373   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
 374       xbt_swag_offset(action, generic_lmm_action.variable),
 375       storage_maxmin_system, lmm_solve);
 376
 377   double rate;
 378   // Foreach disk
 379   xbt_dynar_foreach(storage_list,i,storage)
 380   {
 381     rate = 0;
 382     // Foreach write action on disk
 383     xbt_dynar_foreach(storage->write_actions,j,write_action)
 384     {
 385       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
 386     }
 387     if(rate > 0)
 388       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
 389   }
 390
 391   return min_completion;
 392 }
 393
 394 static int storage_resource_used(void *resource_id)
 395 {
 396   THROW_UNIMPLEMENTED;
 397   return 0;
 398 }
 399
 400 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
 401                                  double value, double time)
 402 {
 403   THROW_UNIMPLEMENTED;
 404 }
 405
 406 static int storage_action_unref(surf_action_t action)
 407 {
 408   action->refcount--;
 409   if (!action->refcount) {
 410     xbt_swag_remove(action, action->state_set);
 411     if (((surf_action_lmm_t) action)->variable)
 412       lmm_variable_free(storage_maxmin_system,
 413                         ((surf_action_lmm_t) action)->variable);
 414 #ifdef HAVE_TRACING
 415     xbt_free(action->category);
 416 #endif
 417     surf_action_free(&action);
 418     return 1;
 419   }
 420   return 0;
 421 }
 422
 423 static void storage_action_cancel(surf_action_t action)
 424 {
 425   surf_action_state_set(action, SURF_ACTION_FAILED);
 426   return;
 427 }
 428
 429 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
 430 {
 431   surf_action_state_set(action, state);
 432   return;
 433 }
 434
 435 static void storage_action_suspend(surf_action_t action)
 436 {
 437   XBT_IN("(%p)", action);
 438   if (((surf_action_lmm_t) action)->suspended != 2) {
 439     lmm_update_variable_weight(storage_maxmin_system,
 440                                ((surf_action_lmm_t) action)->variable,
 441                                0.0);
 442     ((surf_action_lmm_t) action)->suspended = 1;
 443   }
 444   XBT_OUT();
 445 }
 446
 447 static void storage_action_resume(surf_action_t action)
 448 {
 449   THROW_UNIMPLEMENTED;
 450 }
 451
 452 static int storage_action_is_suspended(surf_action_t action)
 453 {
 454   return (((surf_action_lmm_t) action)->suspended == 1);
 455 }
 456
 457 static void storage_action_set_max_duration(surf_action_t action, double duration)
 458 {
 459   THROW_UNIMPLEMENTED;
 460 }
 461
 462 static void storage_action_set_priority(surf_action_t action, double priority)
 463 {
 464   THROW_UNIMPLEMENTED;
 465 }
 466
 467 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
 468 {
 469   void* stype = xbt_lib_get_or_null(storage_type_lib,
 470                                     storage->type_id,
 471                                     ROUTING_STORAGE_TYPE_LEVEL);
 472   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 473
 474   // if storage content is not specified use the content of storage_type if exist
 475   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 476     storage->content = ((storage_type_t) stype)->content;
 477     storage->content_type = ((storage_type_t) stype)->content_type;
 478     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 479         storage->id,((storage_type_t) stype)->content_type,
 480         ((storage_type_t) stype)->type_id);
 481   }
 482
 483   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 484       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 485       "\n\t\tproperties '%p'\n",
 486       storage->id,
 487       ((storage_type_t) stype)->model,
 488       ((storage_type_t) stype)->type_id,
 489       storage->content,
 490       storage->content_type,
 491       ((storage_type_t) stype)->properties);
 492
 493   storage_create_resource(storage->id,
 494      ((storage_type_t) stype)->model,
 495      ((storage_type_t) stype)->type_id,
 496      storage->content,
 497      storage->content_type,
 498      storage->properties);
 499 }
 500
 501 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
 502 {
 503   XBT_DEBUG("parse_mstorage_init");
 504 }
 505
 506 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
 507 {
 508   XBT_DEBUG("parse_storage_type_init");
 509 }
 510
 511 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
 512 {
 513   XBT_DEBUG("parse_mount_init");
 514 }
 515
 516 static void storage_define_callbacks()
 517 {
 518   sg_platf_storage_add_cb(parse_storage_init);
 519   sg_platf_storage_type_add_cb(parse_storage_type_init);
 520   sg_platf_mstorage_add_cb(parse_mstorage_init);
 521   sg_platf_mount_add_cb(parse_mount_init);
 522 }
 523
 524 static void surf_storage_model_init_internal(void)
 525 {
 526   s_surf_action_t action;
 527
 528   XBT_DEBUG("surf_storage_model_init_internal");
 529   surf_storage_model = surf_model_init();
 530
 531   storage_running_action_set_that_does_not_need_being_checked =
 532       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 533
 534   surf_storage_model->name = "Storage";
 535   surf_storage_model->action_unref = storage_action_unref;
 536   surf_storage_model->action_cancel = storage_action_cancel;
 537   surf_storage_model->action_state_set = storage_action_state_set;
 538
 539   surf_storage_model->model_private->finalize = storage_finalize;
 540   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
 541   surf_storage_model->model_private->share_resources = storage_share_resources;
 542   surf_storage_model->model_private->resource_used = storage_resource_used;
 543   surf_storage_model->model_private->update_resource_state = storage_resources_state;
 544
 545   surf_storage_model->suspend = storage_action_suspend;
 546   surf_storage_model->resume = storage_action_resume;
 547   surf_storage_model->is_suspended = storage_action_is_suspended;
 548   surf_storage_model->set_max_duration = storage_action_set_max_duration;
 549   surf_storage_model->set_priority = storage_action_set_priority;
 550
 551   surf_storage_model->extension.storage.open = storage_action_open;
 552   surf_storage_model->extension.storage.close = storage_action_close;
 553   surf_storage_model->extension.storage.read = storage_action_read;
 554   surf_storage_model->extension.storage.write = storage_action_write;
 555   surf_storage_model->extension.storage.ls = storage_action_ls;
 556   surf_storage_model->extension.storage.get_properties = storage_get_properties;
 557   surf_storage_model->extension.storage.get_content = storage_get_content;
 558   surf_storage_model->extension.storage.get_size = storage_get_size;
 559   surf_storage_model->extension.storage.rename = storage_file_rename;
 560   if (!storage_maxmin_system) {
 561     storage_maxmin_system = lmm_system_new(storage_selective_update);
 562   }
 563 }
 564
 565 void surf_storage_model_init_default(void)
 566 {
 567   surf_storage_model_init_internal();
 568   storage_define_callbacks();
 569
 570   xbt_dynar_push(model_list, &surf_storage_model);
 571 }
 572
 573 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
 574 {
 575   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 576                "Reading a storage, processing unit \"%s\" already exists", storage->id);
 577
 578   // Verification of an existing type_id
 579 #ifndef NDEBUG
 580   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 581 #endif
 582   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 583
 584   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 585       storage->id,
 586       storage->type_id,
 587       storage->content);
 588
 589   xbt_lib_set(storage_lib,
 590       storage->id,
 591       ROUTING_STORAGE_LEVEL,
 592       (void *) xbt_strdup(storage->type_id));
 593 }
 594
 595 static xbt_dict_t parse_storage_content(char *filename, sg_storage_size_t *used_size)
 596 {
 597   *used_size = 0;
 598   if ((!filename) || (strcmp(filename, "") == 0))
 599     return NULL;
 600
 601   xbt_dict_t parse_content = xbt_dict_new_homogeneous(xbt_free);
 602   FILE *file = NULL;
 603
 604   file = surf_fopen(filename, "r");
 605   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
 606               xbt_str_join(surf_path, ":"));
 607
 608   char *line = NULL;
 609   size_t len = 0;
 610   ssize_t read;
 611   char path[1024];
 612   sg_storage_size_t size;
 613
 614   while ((read = xbt_getline(&line, &len, file)) != -1) {
 615     if (read){
 616     if (sscanf(line,"%s %" SCNu64, path, &size) == 2) {
 617         *used_size += size;
 618         sg_storage_size_t *psize = xbt_new(sg_storage_size_t, 1);
 619         *psize = size;
 620         xbt_dict_set(parse_content,path,psize,NULL);
 621       } else {
 622         xbt_die("Be sure of passing a good format for content file.\n");
 623       }
 624     }
 625   }
 626   free(line);
 627   fclose(file);
 628   return parse_content;
 629 }
 630
 631 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
 632 {
 633   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 634                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 635
 636   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 637   stype->model = xbt_strdup(storage_type->model);
 638   stype->properties = storage_type->properties;
 639   stype->content = xbt_strdup(storage_type->content);
 640   stype->content_type = xbt_strdup(storage_type->content_type);
 641   stype->type_id = xbt_strdup(storage_type->id);
 642   stype->size = storage_type->size;
 643
 644   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 645       "content '%s', and content_type '%s'",
 646       stype->type_id,
 647       stype->model,
 648       storage_type->content,
 649       storage_type->content_type);
 650
 651   xbt_lib_set(storage_type_lib,
 652       stype->type_id,
 653       ROUTING_STORAGE_TYPE_LEVEL,
 654       (void *) stype);
 655 }
 656 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 657 {
 658   THROW_UNIMPLEMENTED;
 659 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 660 //  mnt->id = xbt_strdup(mstorage->type_id);
 661 //  mnt->name = xbt_strdup(mstorage->name);
 662 //
 663 //  if(!mount_list){
 664 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 665 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 666 //  }
 667 //  xbt_dynar_push(mount_list,(void *) mnt);
 668 //  free(mnt->id);
 669 //  free(mnt->name);
 670 //  xbt_free(mnt);
 671 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 672 }
 673
 674 static void mount_free(void *p)
 675 {
 676   mount_t mnt = p;
 677   xbt_free(mnt->name);
 678 }
 679
 680 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
 681 {
 682   // Verification of an existing storage
 683 #ifndef NDEBUG
 684   void* storage = xbt_lib_get_or_null(storage_lib, mount->storageId,ROUTING_STORAGE_LEVEL);
 685 #endif
 686   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->storageId);
 687
 688   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 689
 690   s_mount_t mnt;
 691   mnt.storage =
 692     surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 693   mnt.name = xbt_strdup(mount->name);
 694
 695   if(!mount_list){
 696     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 697     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 698   }
 699   xbt_dynar_push(mount_list,&mnt);
 700 }
 701
 702 static XBT_INLINE void routing_storage_type_free(void *r)
 703 {
 704   storage_type_t stype = r;
 705   free(stype->model);
 706   free(stype->type_id);
 707   free(stype->content);
 708   free(stype->content_type);
 709   xbt_dict_free(&(stype->properties));
 710   free(stype);
 711 }
 712
 713 static XBT_INLINE void surf_storage_resource_free(void *r)
 714 {
 715   // specific to storage
 716   storage_t storage = r;
 717   xbt_dict_free(&storage->content);
 718   xbt_dynar_free(&storage->write_actions);
 719   free(storage->type_id);
 720   free(storage->content_type);
 721   // generic resource
 722   surf_resource_free(r);
 723 }
 724
 725 static XBT_INLINE void routing_storage_host_free(void *r)
 726 {
 727   xbt_dynar_t dyn = r;
 728   xbt_dynar_free(&dyn);
 729 }
 730
 731 void storage_register_callbacks() {
 732
 733   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
 734   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
 735   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
 736   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
 737
 738   sg_platf_storage_add_cb(storage_parse_storage);
 739   sg_platf_mstorage_add_cb(storage_parse_mstorage);
 740   sg_platf_storage_type_add_cb(storage_parse_storage_type);
 741   sg_platf_mount_add_cb(storage_parse_mount);
 742 }
 743