src/surf/storage.cpp

   1 #include "storage.hpp"
   2 #include "surf_private.h"
   3
   4 extern "C" {
   5 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf,
   6                                 "Logging specific to the SURF storage module");
   7 }
   8
   9 xbt_lib_t storage_lib;
  10 int ROUTING_STORAGE_LEVEL;      //Routing for storagelevel
  11 int ROUTING_STORAGE_HOST_LEVEL;
  12 int SURF_STORAGE_LEVEL;
  13 xbt_lib_t storage_type_lib;
  14 int ROUTING_STORAGE_TYPE_LEVEL; //Routing for storage_type level
  15
  16 static xbt_dynar_t storage_list;
  17
  18 xbt_dynar_t mount_list = NULL;  /* temporary store of current mount storage */
  19 StorageModelPtr surf_storage_model = NULL;
  20
  21 lmm_system_t storage_maxmin_system = NULL;
  22 static int storage_selective_update = 0;
  23 static xbt_swag_t storage_running_action_set_that_does_not_need_being_checked = NULL;
  24
  25 /*************
  26  * CallBacks *
  27  *************/
  28
  29 static XBT_INLINE void routing_storage_type_free(void *r)
  30 {
  31   storage_type_t stype = (storage_type_t) r;
  32   free(stype->model);
  33   free(stype->type_id);
  34   free(stype->content);
  35   xbt_dict_free(&(stype->properties));
  36   free(stype);
  37 }
  38
  39 static XBT_INLINE void surf_storage_resource_free(void *r)
  40 {
  41   // specific to storage
  42   StoragePtr storage = (StoragePtr) r;
  43   xbt_dict_free(&storage->p_content);
  44   xbt_dynar_free(&storage->p_writeActions);
  45   // generic resource
  46   delete storage;
  47 }
  48
  49 static XBT_INLINE void routing_storage_host_free(void *r)
  50 {
  51   xbt_dynar_t dyn = (xbt_dynar_t) r;
  52   xbt_dynar_free(&dyn);
  53 }
  54
  55 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
  56 {
  57   void* stype = xbt_lib_get_or_null(storage_type_lib,
  58                                     storage->type_id,
  59                                     ROUTING_STORAGE_TYPE_LEVEL);
  60   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
  61
  62   // if storage content is not specified use the content of storage_type if exist
  63   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
  64     storage->content = ((storage_type_t) stype)->content;
  65     XBT_DEBUG("For disk '%s' content is empty, use the content of storage type '%s'",storage->id,((storage_type_t) stype)->type_id);
  66   }
  67
  68   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",
  69       storage->id,
  70       ((storage_type_t) stype)->model,
  71       ((storage_type_t) stype)->type_id,
  72       storage->content,
  73       ((storage_type_t) stype)->properties);
  74
  75   surf_storage_model->createResource(storage->id, ((storage_type_t) stype)->model,
  76                                      ((storage_type_t) stype)->type_id,
  77                                      storage->content);
  78 }
  79
  80 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
  81 {
  82   XBT_DEBUG("parse_mstorage_init");
  83 }
  84
  85 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
  86 {
  87   XBT_DEBUG("parse_storage_type_init");
  88 }
  89
  90 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
  91 {
  92   XBT_DEBUG("parse_mount_init");
  93 }
  94
  95 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
  96 {
  97   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
  98                "Reading a storage, processing unit \"%s\" already exists", storage->id);
  99
 100   // Verification of an existing type_id
 101 #ifndef NDEBUG
 102   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 103 #endif
 104   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 105
 106   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 107       storage->id,
 108       storage->type_id,
 109       storage->content);
 110
 111   xbt_lib_set(storage_lib,
 112       storage->id,
 113       ROUTING_STORAGE_LEVEL,
 114       (void *) xbt_strdup(storage->type_id));
 115 }
 116
 117 static xbt_dict_t parse_storage_content(char *filename, size_t *used_size)
 118 {
 119   *used_size = 0;
 120   if ((!filename) || (strcmp(filename, "") == 0))
 121     return NULL;
 122
 123   xbt_dict_t parse_content = xbt_dict_new_homogeneous(NULL);
 124   FILE *file = NULL;
 125
 126   file = surf_fopen(filename, "r");
 127   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
 128               xbt_str_join(surf_path, ":"));
 129
 130   char *line = NULL;
 131   size_t len = 0;
 132   ssize_t read;
 133   char path[1024];
 134   size_t size;
 135
 136
 137   while ((read = xbt_getline(&line, &len, file)) != -1) {
 138     if (read){
 139     if(sscanf(line,"%s %zu",path, &size)==2) {
 140         *used_size += size;
 141         xbt_dict_set(parse_content,path,(void*) size,NULL);
 142       } else {
 143         xbt_die("Be sure of passing a good format for content file.\n");
 144       }
 145     }
 146   }
 147   free(line);
 148   fclose(file);
 149   return parse_content;
 150 }
 151
 152 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
 153 {
 154   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 155                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 156
 157   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 158   stype->model = xbt_strdup(storage_type->model);
 159   stype->properties = storage_type->properties;
 160   stype->content = xbt_strdup(storage_type->content);
 161   stype->type_id = xbt_strdup(storage_type->id);
 162   stype->size = storage_type->size * 1000000000; /* storage_type->size is in Gbytes and stype->sizeis in bytes */
 163
 164   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s' content '%s'",
 165       stype->type_id,
 166       stype->model,
 167       storage_type->content);
 168
 169   xbt_lib_set(storage_type_lib,
 170       stype->type_id,
 171       ROUTING_STORAGE_TYPE_LEVEL,
 172       (void *) stype);
 173 }
 174 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 175 {
 176   THROW_UNIMPLEMENTED;
 177 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 178 //  mnt->id = xbt_strdup(mstorage->type_id);
 179 //  mnt->name = xbt_strdup(mstorage->name);
 180 //
 181 //  if(!mount_list){
 182 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 183 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 184 //  }
 185 //  xbt_dynar_push(mount_list,(void *) mnt);
 186 //  free(mnt->id);
 187 //  free(mnt->name);
 188 //  xbt_free(mnt);
 189 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 190 }
 191
 192 static void mount_free(void *p)
 193 {
 194   mount_t mnt = (mount_t) p;
 195   xbt_free(mnt->name);
 196 }
 197
 198 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
 199 {
 200   // Verification of an existing storage
 201 #ifndef NDEBUG
 202   void* storage = xbt_lib_get_or_null(storage_lib, mount->id,ROUTING_STORAGE_LEVEL);
 203 #endif
 204   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->id);
 205
 206   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->id, mount->name);
 207
 208   s_mount_t mnt;
 209   mnt.id = surf_storage_resource_priv(surf_storage_resource_by_name(mount->id));
 210   mnt.name = xbt_strdup(mount->name);
 211
 212   if(!mount_list){
 213     //FIXME:XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 214     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 215   }
 216   xbt_dynar_push(mount_list,&mnt);
 217 }
 218
 219 static void storage_define_callbacks()
 220 {
 221   sg_platf_storage_add_cb(parse_storage_init);
 222   sg_platf_storage_type_add_cb(parse_storage_type_init);
 223   sg_platf_mstorage_add_cb(parse_mstorage_init);
 224   sg_platf_mount_add_cb(parse_mount_init);
 225 }
 226
 227 void storage_register_callbacks() {
 228
 229   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
 230   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib, routing_storage_host_free);
 231   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib, routing_storage_type_free);
 232   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, surf_storage_resource_free);
 233
 234   sg_platf_storage_add_cb(storage_parse_storage);
 235   sg_platf_mstorage_add_cb(storage_parse_mstorage);
 236   sg_platf_storage_type_add_cb(storage_parse_storage_type);
 237   sg_platf_mount_add_cb(storage_parse_mount);
 238 }
 239
 240 /*********
 241  * Model *
 242  *********/
 243
 244 void surf_storage_model_init_default(void)
 245 {
 246   surf_storage_model = new StorageModel();
 247   storage_define_callbacks();
 248   xbt_dynar_push(model_list, &surf_storage_model);
 249 }
 250
 251 StorageModel::StorageModel() : Model("Storage"){
 252   StorageActionLmm action;
 253
 254   XBT_DEBUG("surf_storage_model_init_internal");
 255
 256   storage_running_action_set_that_does_not_need_being_checked =
 257       xbt_swag_new(xbt_swag_offset(action, p_stateHookup));
 258
 259   if (!storage_maxmin_system) {
 260     storage_maxmin_system = lmm_system_new(storage_selective_update);
 261   }
 262 }
 263
 264
 265 StorageModel::~StorageModel(){
 266   lmm_system_free(storage_maxmin_system);
 267   storage_maxmin_system = NULL;
 268
 269   surf_storage_model = NULL;
 270
 271   xbt_dynar_free(&storage_list);
 272
 273   xbt_swag_free(storage_running_action_set_that_does_not_need_being_checked);
 274   storage_running_action_set_that_does_not_need_being_checked = NULL;
 275 }
 276
 277 StoragePtr StorageModel::createResource(const char* id, const char* model, const char* type_id, const char* content_name)
 278 {
 279
 280   xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
 281               "Storage '%s' declared several times in the platform file",
 282               id);
 283
 284   storage_type_t storage_type = (storage_type_t) xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 285
 286   double Bread  = atof((char*)xbt_dict_get(storage_type->properties, "Bread"));
 287   double Bwrite = atof((char*)xbt_dict_get(storage_type->properties, "Bwrite"));
 288   double Bconnection   = atof((char*)xbt_dict_get(storage_type->properties, "Bconnection"));
 289
 290   StoragePtr storage = new StorageLmm(this, NULL, NULL, p_maxminSystem,
 291                   Bread, Bwrite, Bconnection,
 292                   parseContent((char*)content_name, &(storage->m_usedSize)),
 293                   storage_type->size);
 294
 295   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 296
 297   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",
 298       id,
 299       model,
 300       type_id,
 301       storage_type->properties,
 302       Bread);
 303
 304   if(!storage_list) storage_list=xbt_dynar_new(sizeof(char *),NULL);
 305   xbt_dynar_push(storage_list, &storage);
 306
 307   return storage;
 308 }
 309
 310 double StorageModel::shareResources(double now)
 311 {
 312   XBT_DEBUG("storage_share_resources %f", now);
 313   StorageActionLmm action;
 314   unsigned int i, j;
 315   StoragePtr storage;
 316   StorageActionLmmPtr write_action;
 317
 318   double min_completion = shareResourcesMaxMin(p_runningActionSet,
 319       xbt_swag_offset(action, p_variable),
 320       storage_maxmin_system, lmm_solve);
 321
 322   double rate;
 323   // Foreach disk
 324   xbt_dynar_foreach(storage_list,i,storage)
 325   {
 326     rate = 0;
 327     // Foreach write action on disk
 328     xbt_dynar_foreach(storage->p_writeActions, j, write_action)
 329     {
 330       rate += lmm_variable_getvalue(write_action->p_variable);
 331     }
 332     if(rate > 0)
 333       min_completion = MIN(min_completion, (storage->m_size-storage->m_usedSize)/rate);
 334   }
 335
 336   return min_completion;
 337 }
 338
 339 void StorageModel::updateActionsState(double now, double delta)
 340 {
 341   void *_action, *_next_action;
 342   StorageActionLmmPtr action = NULL;
 343
 344   // Update the disk usage
 345   // Update the file size
 346   // For each action of type write
 347   xbt_swag_foreach_safe(_action, _next_action, p_runningActionSet) {
 348         action = (StorageActionLmmPtr) _action;
 349     if(action->m_type == WRITE)
 350     {
 351       double rate = lmm_variable_getvalue(action->p_variable);
 352       /* Hack to avoid rounding differences between x86 and x86_64
 353        * (note that the next sizes are of type size_t). */
 354       long incr = delta * rate + MAXMIN_PRECISION;
 355       action->p_storage->m_usedSize += incr; // disk usage
 356       action->p_file->size += incr; // file size
 357     }
 358   }
 359
 360   xbt_swag_foreach_safe(_action, _next_action, p_runningActionSet) {
 361         action = (StorageActionLmmPtr) _action;
 362
 363     double_update(&action->m_remains,
 364                   lmm_variable_getvalue(action->p_variable) * delta);
 365
 366     if (action->m_maxDuration != NO_MAX_DURATION)
 367       double_update(&action->m_maxDuration, delta);
 368
 369     if(action->m_remains > 0 &&
 370         lmm_get_variable_weight(action->p_variable) > 0 &&
 371         action->p_storage->m_usedSize == action->p_storage->m_size)
 372     {
 373       action->m_finish = surf_get_clock();
 374       action->setState(SURF_ACTION_FAILED);
 375     } else if ((action->m_remains <= 0) &&
 376         (lmm_get_variable_weight(action->p_variable) > 0))
 377     {
 378       action->m_finish = surf_get_clock();
 379       action->setState(SURF_ACTION_DONE);
 380     } else if ((action->m_maxDuration != NO_MAX_DURATION) &&
 381                (action->m_maxDuration <= 0))
 382     {
 383       action->m_finish = surf_get_clock();
 384       action->setState(SURF_ACTION_DONE);
 385     }
 386   }
 387
 388   return;
 389 }
 390
 391 xbt_dict_t StorageModel::parseContent(char *filename, size_t *used_size)
 392 {
 393   *used_size = 0;
 394   if ((!filename) || (strcmp(filename, "") == 0))
 395     return NULL;
 396
 397   xbt_dict_t parse_content = xbt_dict_new_homogeneous(NULL);
 398   FILE *file = NULL;
 399
 400   file = surf_fopen(filename, "r");
 401   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
 402               xbt_str_join(surf_path, ":"));
 403
 404   char *line = NULL;
 405   size_t len = 0;
 406   ssize_t read;
 407   char path[1024];
 408   size_t size;
 409
 410
 411   while ((read = xbt_getline(&line, &len, file)) != -1) {
 412     if (read){
 413     if(sscanf(line,"%s %zu",path, &size)==2) {
 414         *used_size += size;
 415         xbt_dict_set(parse_content,path,(void*) size,NULL);
 416       } else {
 417         xbt_die("Be sure of passing a good format for content file.\n");
 418       }
 419     }
 420   }
 421   free(line);
 422   fclose(file);
 423   return parse_content;
 424 }
 425
 426 /************
 427  * Resource *
 428  ************/
 429
 430 Storage::Storage(StorageModelPtr model, const char* name, xbt_dict_t properties) {
 431   p_writeActions = xbt_dynar_new(sizeof(char *),NULL);
 432 }
 433
 434 StorageLmm::StorageLmm(StorageModelPtr model, const char* name, xbt_dict_t properties,
 435              lmm_system_t maxminSystem, double bread, double bwrite, double bconnection,
 436              xbt_dict_t content, size_t size)
 437  :    ResourceLmm(), Storage(model, name, properties) {
 438   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%lu'", bconnection, bread, bwrite, ((unsigned long)size));
 439
 440   p_constraint = lmm_constraint_new(maxminSystem, this, bconnection);
 441   p_constraintRead  = lmm_constraint_new(maxminSystem, this, bread);
 442   p_constraintWrite = lmm_constraint_new(maxminSystem, this, bwrite);
 443   p_content = content;
 444   m_size = size;
 445 }
 446
 447 bool Storage::isUsed()
 448 {
 449   THROW_UNIMPLEMENTED;
 450   return false;
 451 }
 452
 453 void Storage::updateState(tmgr_trace_event_t event_type, double value, double date)
 454 {
 455   THROW_UNIMPLEMENTED;
 456 }
 457
 458 StorageActionPtr StorageLmm::ls(const char* path)
 459 {
 460   StorageActionLmmPtr action = new StorageActionLmm(p_model, 0, p_stateCurrent != SURF_RESOURCE_ON, this, LS);
 461
 462   action->p_lsDict = NULL;
 463   xbt_dict_t ls_dict = xbt_dict_new();
 464
 465   char* key;
 466   size_t size = 0;
 467   xbt_dict_cursor_t cursor = NULL;
 468
 469   xbt_dynar_t dyn = NULL;
 470   char* file = NULL;
 471
 472   // for each file in the storage content
 473   xbt_dict_foreach(p_content,cursor,key,size){
 474     // Search if file start with the prefix 'path'
 475     if(xbt_str_start_with(key,path)){
 476       file = &key[strlen(path)];
 477
 478       // Split file with '/'
 479       dyn = xbt_str_split(file,"/");
 480       file = xbt_dynar_get_as(dyn,0,char*);
 481
 482       // file
 483       if(xbt_dynar_length(dyn) == 1){
 484         xbt_dict_set(ls_dict,file,&size,NULL);
 485       }
 486       // Directory
 487       else
 488       {
 489         // if directory does not exist yet in the dictionary
 490         if(!xbt_dict_get_or_null(ls_dict,file))
 491           xbt_dict_set(ls_dict,file,NULL,NULL);
 492       }
 493       xbt_dynar_free(&dyn);
 494     }
 495   }
 496
 497   action->p_lsDict = ls_dict;
 498   return action;
 499 }
 500
 501 StorageActionPtr StorageLmm::open(const char* mount, const char* path)
 502 {
 503   XBT_DEBUG("\tOpen file '%s'",path);
 504   size_t size = (size_t) xbt_dict_get_or_null(p_content, path);
 505   // if file does not exist create an empty file
 506   if(!size){
 507     xbt_dict_set(p_content, path, &size, NULL);
 508     XBT_DEBUG("File '%s' was not found, file created.",path);
 509   }
 510   surf_file_t file = xbt_new0(s_surf_file_t,1);
 511   file->name = xbt_strdup(path);
 512   file->size = size;
 513   file->storage = xbt_strdup(mount);
 514
 515   StorageActionLmmPtr action = new StorageActionLmm(p_model, 0, p_stateCurrent != SURF_RESOURCE_ON, this, OPEN);
 516   action->p_file = file;
 517   return action;
 518 }
 519
 520 StorageActionPtr StorageLmm::close(surf_file_t fd)
 521 {
 522   char *filename = fd->name;
 523   XBT_DEBUG("\tClose file '%s' size '%zu'", filename, fd->size);
 524   // unref write actions from storage
 525   StorageActionLmmPtr write_action;
 526   unsigned int i;
 527   xbt_dynar_foreach(p_writeActions, i, write_action) {
 528     if ((write_action->p_file) == fd) {
 529       xbt_dynar_cursor_rm(p_writeActions, &i);
 530       write_action->unref();
 531     }
 532   }
 533   free(fd->name);
 534   free(fd->storage);
 535   xbt_free(fd);
 536   StorageActionLmmPtr action = new StorageActionLmm(p_model, 0, p_stateCurrent != SURF_RESOURCE_ON, this, CLOSE);
 537   return action;
 538 }
 539
 540 StorageActionPtr StorageLmm::read(void* ptr, size_t size, surf_file_t fd)
 541 {
 542   if(size > fd->size)
 543     size = fd->size;
 544   StorageActionLmmPtr action = new StorageActionLmm(p_model, 0, p_stateCurrent != SURF_RESOURCE_ON, this, READ);
 545   return action;
 546 }
 547
 548 StorageActionPtr StorageLmm::write(const void* ptr, size_t size, surf_file_t fd)
 549 {
 550   char *filename = fd->name;
 551   XBT_DEBUG("\tWrite file '%s' size '%zu/%zu'",filename,size,fd->size);
 552
 553   StorageActionLmmPtr action = new StorageActionLmm(p_model, 0, p_stateCurrent != SURF_RESOURCE_ON, this, WRITE);
 554   action->p_file = fd;
 555
 556   // If the storage is full
 557   if(m_usedSize==m_size) {
 558     action->setState(SURF_ACTION_FAILED);
 559   }
 560   return action;
 561 }
 562
 563 /**********
 564  * Action *
 565  **********/
 566
 567 StorageActionLmm::StorageActionLmm(ModelPtr model, double cost, bool failed, StorageLmmPtr storage, e_surf_action_storage_type_t type)
 568   : ActionLmm(model, cost, failed), StorageAction(model, cost, failed, storage, type) {
 569   XBT_IN("(%s,%zu", storage->m_name, cost);
 570   // Must be less than the max bandwidth for all actions
 571   lmm_expand(storage_maxmin_system, storage->p_constraint, p_variable, 1.0);
 572   switch(type) {
 573   case OPEN:
 574   case CLOSE:
 575   case STAT:
 576   case LS:
 577     break;
 578   case READ:
 579     lmm_expand(storage_maxmin_system, storage->p_constraintRead,
 580                p_variable, 1.0);
 581     break;
 582   case WRITE:
 583     lmm_expand(storage_maxmin_system, storage->p_constraintWrite,
 584                p_variable, 1.0);
 585     xbt_dynar_push(storage->p_writeActions,this);
 586     break;
 587   }
 588   XBT_OUT();
 589 }
 590
 591 int StorageActionLmm::unref()
 592 {
 593   m_refcount--;
 594   if (!m_refcount) {
 595     xbt_swag_remove(static_cast<ActionPtr>(this), p_stateSet);
 596     if (p_variable)
 597       lmm_variable_free(storage_maxmin_system, p_variable);
 598 #ifdef HAVE_TRACING
 599     xbt_free(p_category);
 600 #endif
 601     delete this;
 602     return 1;
 603   }
 604   return 0;
 605 }
 606
 607 void StorageActionLmm::cancel()
 608 {
 609   setState(SURF_ACTION_FAILED);
 610   return;
 611 }
 612
 613 void StorageActionLmm::suspend()
 614 {
 615   XBT_IN("(%p)", this);
 616   if (m_suspended != 2) {
 617     lmm_update_variable_weight(storage_maxmin_system,
 618                                p_variable,
 619                                0.0);
 620     m_suspended = 1;
 621   }
 622   XBT_OUT();
 623 }
 624
 625 void StorageActionLmm::resume()
 626 {
 627   THROW_UNIMPLEMENTED;
 628 }
 629
 630 bool StorageActionLmm::isSuspended()
 631 {
 632   return m_suspended == 1;
 633 }
 634
 635 void StorageActionLmm::setMaxDuration(double duration)
 636 {
 637   THROW_UNIMPLEMENTED;
 638 }
 639
 640 void StorageActionLmm::setPriority(double priority)
 641 {
 642   THROW_UNIMPLEMENTED;
 643 }
 644