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kill more dead code
[simgrid.git] / src / surf / storage_n11.cpp
index 2856220..8161a1b 100644 (file)
@@ -1,4 +1,4 @@
-/* Copyright (c) 2013-2014. The SimGrid Team.
+/* Copyright (c) 2013-2015. The SimGrid Team.
  * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
@@ -6,17 +6,14 @@
 
 #include "storage_n11.hpp"
 #include "surf_private.h"
-
+#include <math.h> /*ceil*/
 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_storage);
 
-static int storage_selective_update = 0;
-static xbt_swag_t storage_running_action_set_that_does_not_need_being_checked = NULL;
-
 /*************
  * CallBacks *
  *************/
 
-static XBT_INLINE void routing_storage_type_free(void *r)
+static inline void routing_storage_type_free(void *r)
 {
   storage_type_t stype = (storage_type_t) r;
   free(stype->model);
@@ -28,269 +25,92 @@ static XBT_INLINE void routing_storage_type_free(void *r)
   free(stype);
 }
 
-static XBT_INLINE void surf_storage_resource_free(void *r)
+static inline void surf_storage_resource_free(void *r)
 {
   // specific to storage
-  StoragePtr storage = static_cast<StoragePtr>(r);
+  simgrid::surf::Storage *storage = static_cast<simgrid::surf::Storage*>(r);
   // generic resource
   delete storage;
 }
 
-static XBT_INLINE void routing_storage_host_free(void *r)
+static inline void routing_storage_host_free(void *r)
 {
   xbt_dynar_t dyn = (xbt_dynar_t) r;
   xbt_dynar_free(&dyn);
 }
 
-static void parse_storage_init(sg_platf_storage_cbarg_t storage)
-{
-  void* stype = xbt_lib_get_or_null(storage_type_lib,
-                                    storage->type_id,
-                                    ROUTING_STORAGE_TYPE_LEVEL);
-  if(!stype) xbt_die("No storage type '%s'",storage->type_id);
-
-  // if storage content is not specified use the content of storage_type if exist
-  if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
-    storage->content = ((storage_type_t) stype)->content;
-    storage->content_type = ((storage_type_t) stype)->content_type;
-    XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
-        storage->id,((storage_type_t) stype)->content_type,
-        ((storage_type_t) stype)->type_id);
-  }
-
-  XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
-      "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
-      "\n\t\tproperties '%p''\n",
-      storage->id,
-      ((storage_type_t) stype)->model,
-      ((storage_type_t) stype)->type_id,
-      storage->content,
-      storage->content_type,
-      storage->properties);
-
-  surf_storage_model->createResource(storage->id,
-                                     ((storage_type_t) stype)->type_id,
-                                     storage->content,
-                                     storage->content_type,
-                                     storage->properties,
-                                     storage->attach);
-}
-
-static void parse_mstorage_init(sg_platf_mstorage_cbarg_t /*mstorage*/)
-{
-  XBT_DEBUG("parse_mstorage_init");
-}
-
-static void parse_storage_type_init(sg_platf_storage_type_cbarg_t /*storagetype_*/)
-{
-  XBT_DEBUG("parse_storage_type_init");
-}
-
-static void parse_mount_init(sg_platf_mount_cbarg_t /*mount*/)
-{
-  XBT_DEBUG("parse_mount_init");
-}
-
-static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
-{
-  xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
-               "Reading a storage, processing unit \"%s\" already exists", storage->id);
-
-  // Verification of an existing type_id
-#ifndef NDEBUG
-  void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
-#endif
-  xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
-
-  XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
-      storage->id,
-      storage->type_id,
-      storage->content);
-
-  xbt_lib_set(storage_lib,
-      storage->id,
-      ROUTING_STORAGE_LEVEL,
-      (void *) xbt_strdup(storage->type_id));
-}
-
-static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
-{
-  xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
-               "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
-
-  storage_type_t stype = xbt_new0(s_storage_type_t, 1);
-  stype->model = xbt_strdup(storage_type->model);
-  stype->properties = storage_type->properties;
-  stype->content = xbt_strdup(storage_type->content);
-  stype->content_type = xbt_strdup(storage_type->content_type);
-  stype->type_id = xbt_strdup(storage_type->id);
-  stype->size = storage_type->size;
-  stype->model_properties = storage_type->model_properties;
-
-  XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
-      "content '%s', and content_type '%s'",
-      stype->type_id,
-      stype->model,
-      storage_type->content,
-      storage_type->content_type);
-
-  xbt_lib_set(storage_type_lib,
-      stype->type_id,
-      ROUTING_STORAGE_TYPE_LEVEL,
-      (void *) stype);
-}
-
-static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t /*mstorage*/)
-{
-  THROW_UNIMPLEMENTED;
-//  mount_t mnt = xbt_new0(s_mount_t, 1);
-//  mnt->id = xbt_strdup(mstorage->type_id);
-//  mnt->name = xbt_strdup(mstorage->name);
-//
-//  if(!mount_list){
-//    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
-//    mount_list = xbt_dynar_new(sizeof(char *), NULL);
-//  }
-//  xbt_dynar_push(mount_list,(void *) mnt);
-//  free(mnt->id);
-//  free(mnt->name);
-//  xbt_free(mnt);
-//  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
-}
-
-static void mount_free(void *p)
-{
-  mount_t mnt = (mount_t) p;
-  xbt_free(mnt->name);
-}
-
-static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
-{
-  // Verification of an existing storage
-#ifndef NDEBUG
-  void* storage = xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL);
-#endif
-  xbt_assert(storage,"Disk id \"%s\" does not exists", mount->storageId);
-
-  XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
-
-  s_mount_t mnt;
-  mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
-  mnt.name = xbt_strdup(mount->name);
-
-  if(!mount_list){
-    XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
-    mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
-  }
-  xbt_dynar_push(mount_list, &mnt);
-}
-
-static void storage_define_callbacks()
+void storage_register_callbacks()
 {
-  sg_platf_storage_add_cb(parse_storage_init);
-  sg_platf_storage_type_add_cb(parse_storage_type_init);
-  sg_platf_mstorage_add_cb(parse_mstorage_init);
-  sg_platf_mount_add_cb(parse_mount_init);
-}
-
-void storage_register_callbacks() {
-
-  ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
+  ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, xbt_free_f);
   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib, routing_storage_host_free);
   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib, routing_storage_type_free);
   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, surf_storage_resource_free);
-
-  sg_platf_storage_add_cb(storage_parse_storage);
-  sg_platf_mstorage_add_cb(storage_parse_mstorage);
-  sg_platf_storage_type_add_cb(storage_parse_storage_type);
-  sg_platf_mount_add_cb(storage_parse_mount);
 }
 
 /*********
  * Model *
  *********/
 
-void surf_storage_model_init_default(void)
+void surf_storage_model_init_default()
 {
-  surf_storage_model = new StorageN11Model();
-  storage_define_callbacks();
-  xbt_dynar_push(model_list, &surf_storage_model);
+  surf_storage_model = new simgrid::surf::StorageN11Model();
+  all_existing_models->push_back(surf_storage_model);
 }
 
-StorageN11Model::StorageN11Model() : StorageModel() {
-  ActionPtr action = NULL;
+namespace simgrid {
+namespace surf {
 
+StorageN11Model::StorageN11Model() : StorageModel() {
   XBT_DEBUG("surf_storage_model_init_internal");
-
-  storage_running_action_set_that_does_not_need_being_checked =
-      xbt_swag_new(xbt_swag_offset(*action, p_stateHookup));
-  if (!p_maxminSystem) {
-    p_maxminSystem = lmm_system_new(storage_selective_update);
-  }
+  maxminSystem_ = lmm_system_new(false /*lazy?*/);
 }
 
 StorageN11Model::~StorageN11Model(){
-  xbt_swag_free(storage_running_action_set_that_does_not_need_being_checked);
-  storage_running_action_set_that_does_not_need_being_checked = NULL;
 }
 
-StoragePtr StorageN11Model::createResource(const char* id, const char* type_id,
-               const char* content_name, const char* content_type, xbt_dict_t properties, const char* attach)
+#include "src/surf/xml/platf.hpp" // FIXME: move that back to the parsing area
+Storage *StorageN11Model::createStorage(const char* id, const char* type_id,
+    const char* content_name, const char* content_type, xbt_dict_t properties, const char* attach)
 {
 
   xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
-              "Storage '%s' declared several times in the platform file",
-              id);
+      "Storage '%s' declared several times in the platform file", id);
 
   storage_type_t storage_type = (storage_type_t) xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
 
-  double Bread  = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bread"));
-  double Bwrite = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bwrite"));
-  double Bconnection   = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bconnection"));
-
-  StoragePtr storage = new StorageN11(this, id, properties, p_maxminSystem,
-                 Bread, Bwrite, Bconnection,
-                 type_id, (char *)content_name, xbt_strdup(content_type), storage_type->size, (char *) attach);
+  double Bread  = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bread"),
+      "property Bread, storage",type_id);
+  double Bwrite = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bwrite"),
+      "property Bwrite, storage",type_id);
+  double Bconnection   = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bconnection"),
+      "property Bconnection, storage",type_id);
 
-  xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, static_cast<ResourcePtr>(storage));
+  Storage *storage = new StorageN11(this, id, properties, maxminSystem_,
+      Bread, Bwrite, Bconnection, type_id, (char *)content_name,
+      content_type, storage_type->size, (char *) attach);
+  storageCreatedCallbacks(storage);
+  xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 
   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tproperties '%p'\n\t\tBread '%f'\n",
-      id,
-      type_id,
-      properties,
-      Bread);
+      id, type_id, properties, Bread);
 
-  if(!p_storageList)
-       p_storageList = xbt_dynar_new(sizeof(char *),NULL);
-  xbt_dynar_push(p_storageList, &storage);
+  p_storageList.push_back(storage);
 
   return storage;
 }
 
-double StorageN11Model::shareResources(double now)
+double StorageN11Model::nextOccuringEvent(double now)
 {
-  XBT_DEBUG("storage_share_resources %f", now);
-  unsigned int i, j;
-  StoragePtr storage;
-  void *_write_action;
-  StorageActionPtr write_action;
-
-  double min_completion = shareResourcesMaxMin(getRunningActionSet(),
-      p_maxminSystem, lmm_solve);
-
-  double rate;
-  // Foreach disk
-  xbt_dynar_foreach(p_storageList,i,storage)
-  {
-    rate = 0;
-    // Foreach write action on disk
-    xbt_dynar_foreach(storage->p_writeActions, j, _write_action)
-    {
-      write_action = static_cast<StorageActionPtr>(_write_action);
+  double min_completion = StorageModel::nextOccuringEventFull(now);
+
+  for(auto storage: p_storageList) {
+    double rate = 0;
+    // Foreach write action on that disk
+    for (auto write_action: storage->writeActions_) {
       rate += lmm_variable_getvalue(write_action->getVariable());
     }
     if(rate > 0)
-      min_completion = MIN(min_completion, (storage->m_size-storage->m_usedSize)/rate);
+      min_completion = MIN(min_completion, (storage->size_-storage->usedSize_)/rate);
   }
 
   return min_completion;
@@ -298,128 +118,88 @@ double StorageN11Model::shareResources(double now)
 
 void StorageN11Model::updateActionsState(double /*now*/, double delta)
 {
-  StorageActionPtr action = NULL;
 
-  ActionListPtr actionSet = getRunningActionSet();
+  ActionList *actionSet = getRunningActionSet();
   for(ActionList::iterator it(actionSet->begin()), itNext=it, itend(actionSet->end())
-     ; it != itend ; it=itNext) {
+      ; it != itend ; it=itNext) {
     ++itNext;
-    action = static_cast<StorageActionPtr>(&*it);
-    if(action->m_type == WRITE)
-    {
+
+    StorageAction *action = static_cast<StorageAction*>(&*it);
+
+    if(action->m_type == WRITE){
       // Update the disk usage
-     // Update the file size
-     // For each action of type write
-      double rate = lmm_variable_getvalue(action->getVariable());
-      /* Hack to avoid rounding differences between x86 and x86_64
-       * (note that the next sizes are of type sg_size_t). */
-      long incr = delta * rate + MAXMIN_PRECISION;
-      action->p_storage->m_usedSize += incr; // disk usage
-      action->p_file->size += incr; // file size
+      // Update the file size
+      // For each action of type write
+      double current_progress = delta * lmm_variable_getvalue(action->getVariable());
+      long int incr = current_progress;
+
+      XBT_DEBUG("%s:\n\t progress =  %.2f, current_progress = %.2f, incr = %ld, lrint(1) = %ld, lrint(2) = %ld",
+          action->p_file->name,
+          action->progress,  current_progress, incr,
+          lrint(action->progress + current_progress),
+          lrint(action->progress)+ incr);
+
+      /* take care of rounding error accumulation */
+      if (lrint(action->progress + current_progress) > lrint(action->progress)+ incr)
+        incr++;
+
+      action->progress +=current_progress;
+
+      action->p_storage->usedSize_ += incr; // disk usage
+      action->p_file->current_position+= incr; // current_position
+      //  which becomes the new file size
+      action->p_file->size = action->p_file->current_position ;
 
       sg_size_t *psize = xbt_new(sg_size_t,1);
       *psize = action->p_file->size;
-      xbt_dict_t content_dict = action->p_storage->p_content;
-      xbt_dict_set(content_dict, action->p_file->name, psize, NULL);
+      xbt_dict_t content_dict = action->p_storage->content_;
+      xbt_dict_set(content_dict, action->p_file->name, psize, nullptr);
     }
 
     action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
 
-    if (action->getMaxDuration() != NO_MAX_DURATION)
+    if (action->getMaxDuration() > NO_MAX_DURATION)
       action->updateMaxDuration(delta);
 
-    if(action->getRemainsNoUpdate() > 0 &&
-        lmm_get_variable_weight(action->getVariable()) > 0 &&
-        action->p_storage->m_usedSize == action->p_storage->m_size)
-    {
+    if(action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
+        action->p_storage->usedSize_ == action->p_storage->size_) {
       action->finish();
-      action->setState(SURF_ACTION_FAILED);
-    } else if ((action->getRemainsNoUpdate() <= 0) &&
-        (lmm_get_variable_weight(action->getVariable()) > 0))
-    {
+      action->setState(Action::State::failed);
+    } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
+               ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
       action->finish();
-      action->setState(SURF_ACTION_DONE);
-    } else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
-               (action->getMaxDuration() <= 0))
-    {
-      action->finish();
-      action->setState(SURF_ACTION_DONE);
+      action->setState(Action::State::done);
     }
   }
-  return;
 }
 
 /************
  * Resource *
  ************/
 
-StorageN11::StorageN11(StorageModelPtr model, const char* name, xbt_dict_t properties,
-            lmm_system_t maxminSystem, double bread, double bwrite, double bconnection,
-            const char* type_id, char *content_name, char *content_type, sg_size_t size, char *attach)
- : Storage(model, name, properties,
-          maxminSystem, bread, bwrite, bconnection, type_id, content_name, content_type, size, attach) {
+StorageN11::StorageN11(StorageModel *model, const char* name,
+    xbt_dict_t properties, lmm_system_t maxminSystem, double bread,
+    double bwrite, double bconnection, const char* type_id, char *content_name,
+    const char *content_type, sg_size_t size, char *attach)
+: Storage(model, name, properties,
+    maxminSystem, bread, bwrite, bconnection, type_id, content_name, content_type, size, attach) {
   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%llu'", bconnection, bread, bwrite, size);
 }
 
-StorageActionPtr StorageN11::ls(const char* path)
-{
-  StorageActionPtr action = new StorageN11Action(getModel(), 0, getState() != SURF_RESOURCE_ON, this, LS);
-
-  action->p_lsDict = NULL;
-  xbt_dict_t ls_dict = xbt_dict_new_homogeneous(xbt_free);
-
-  char* key;
-  sg_size_t size = 0;
-  xbt_dict_cursor_t cursor = NULL;
-
-  xbt_dynar_t dyn = NULL;
-  char* file = NULL;
-
-  // for each file in the storage content
-  xbt_dict_foreach(p_content,cursor,key,size){
-    // Search if file start with the prefix 'path'
-    if(xbt_str_start_with(key,path)){
-      file = &key[strlen(path)];
-
-      // Split file with '/'
-      dyn = xbt_str_split(file,"/");
-      file = xbt_dynar_get_as(dyn,0,char*);
-
-      // file
-      if(xbt_dynar_length(dyn) == 1){
-        sg_size_t *psize = xbt_new(sg_size_t, 1);
-        *psize=size;
-        xbt_dict_set(ls_dict, file, psize, NULL);
-      }
-      // Directory
-      else
-      {
-        // if directory does not exist yet in the dictionary
-        if(!xbt_dict_get_or_null(ls_dict,file))
-          xbt_dict_set(ls_dict,file,NULL,NULL);
-      }
-      xbt_dynar_free(&dyn);
-    }
-  }
-
-  action->p_lsDict = ls_dict;
-  return action;
-}
-
-StorageActionPtr StorageN11::open(const char* mount, char* path)
+StorageAction *StorageN11::open(const char* mount, const char* path)
 {
   XBT_DEBUG("\tOpen file '%s'",path);
 
   sg_size_t size, *psize;
-  psize = (sg_size_t*) xbt_dict_get_or_null(p_content, path);
+  psize = (sg_size_t*) xbt_dict_get_or_null(content_, path);
   // if file does not exist create an empty file
   if(psize)
     size = *psize;
   else {
-       psize = xbt_new(sg_size_t,1);
+    psize = xbt_new(sg_size_t,1);
     size = 0;
     *psize = size;
-    xbt_dict_set(p_content, path, psize, NULL);
+    xbt_dict_set(content_, path, psize, nullptr);
     XBT_DEBUG("File '%s' was not found, file created.",path);
   }
   surf_file_t file = xbt_new0(s_surf_file_t,1);
@@ -428,85 +208,73 @@ StorageActionPtr StorageN11::open(const char* mount, char* path)
   file->mount = xbt_strdup(mount);
   file->current_position = 0;
 
-  StorageActionPtr action = new StorageN11Action(getModel(), 0, getState() != SURF_RESOURCE_ON, this, OPEN);
+  StorageAction *action = new StorageN11Action(getModel(), 0, isOff(), this, OPEN);
   action->p_file = file;
-  free(path);
+
   return action;
 }
 
-StorageActionPtr StorageN11::close(surf_file_t fd)
+StorageAction *StorageN11::close(surf_file_t fd)
 {
-  char *filename = fd->name;
-  XBT_DEBUG("\tClose file '%s' size '%llu'", filename, fd->size);
+  XBT_DEBUG("\tClose file '%s' size '%llu'", fd->name, fd->size);
   // unref write actions from storage
-  void *_write_action;
-  StorageActionPtr write_action;
-  unsigned int i;
-  xbt_dynar_foreach(p_writeActions, i, _write_action) {
-       write_action = static_cast<StorageActionPtr>(static_cast<ActionPtr>(_write_action));
+  for (std::vector<StorageAction*>::iterator it = writeActions_.begin(); it != writeActions_.end();) {
+    StorageAction *write_action = *it;
     if ((write_action->p_file) == fd) {
-      xbt_dynar_cursor_rm(p_writeActions, &i);
       write_action->unref();
+      it = writeActions_.erase(it);
+    } else {
+      ++it;
     }
   }
   free(fd->name);
   free(fd->mount);
   xbt_free(fd);
-  StorageActionPtr action = new StorageN11Action(getModel(), 0, getState() != SURF_RESOURCE_ON, this, CLOSE);
+  StorageAction *action = new StorageN11Action(getModel(), 0, isOff(), this, CLOSE);
   return action;
 }
 
-StorageActionPtr StorageN11::read(surf_file_t fd, sg_size_t size)
+StorageAction *StorageN11::read(surf_file_t fd, sg_size_t size)
 {
-  if(size > fd->size){
-    size = fd->size;
+  if(fd->current_position + size > fd->size){
+    if (fd->current_position > fd->size){
+      size = 0;
+    } else {
+      size = fd->size - fd->current_position;
+    }
     fd->current_position = fd->size;
   }
   else
-       fd->current_position += size;
+    fd->current_position += size;
 
-  StorageActionPtr action = new StorageN11Action(getModel(), size, getState() != SURF_RESOURCE_ON, this, READ);
+  StorageAction *action = new StorageN11Action(getModel(), size, isOff(), this, READ);
   return action;
 }
 
-StorageActionPtr StorageN11::write(surf_file_t fd, sg_size_t size)
+StorageAction *StorageN11::write(surf_file_t fd, sg_size_t size)
 {
   char *filename = fd->name;
   XBT_DEBUG("\tWrite file '%s' size '%llu/%llu'",filename,size,fd->size);
 
-  StorageActionPtr action = new StorageN11Action(getModel(), size, getState() != SURF_RESOURCE_ON, this, WRITE);
+  StorageAction *action = new StorageN11Action(getModel(), size, isOff(), this, WRITE);
   action->p_file = fd;
-  fd->current_position += size;
-  // If the storage is full
-  if(m_usedSize==m_size) {
-    action->setState(SURF_ACTION_FAILED);
+  /* Substract the part of the file that might disappear from the used sized on the storage element */
+  usedSize_ -= (fd->size - fd->current_position);
+  // If the storage is full before even starting to write
+  if(usedSize_==size_) {
+    action->setState(Action::State::failed);
   }
   return action;
 }
 
-void StorageN11::rename(const char *src, const char *dest)
-{
-  sg_size_t *psize, *new_psize;
-  psize = (sg_size_t*) xbt_dict_get_or_null(p_content,src);
-  new_psize = xbt_new(sg_size_t, 1);
-  *new_psize = *psize;
-  if (psize){// src file exists
-    xbt_dict_remove(p_content, src);
-    xbt_dict_set(p_content, dest, new_psize,NULL);
-    XBT_DEBUG("Change file name from %s to %s, size '%llu'",src, dest, *psize);
-  }
-  else
-    XBT_DEBUG("File %s doesn't exist",src);
-}
-
 /**********
  * Action *
  **********/
 
-StorageN11Action::StorageN11Action(ModelPtr model, double cost, bool failed, StoragePtr storage, e_surf_action_storage_type_t type)
-  : StorageAction(model, cost, failed,
-                     lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0 , 3),
-                     storage, type) {
+StorageN11Action::StorageN11Action(Model *model, double cost, bool failed, Storage *storage, e_surf_action_storage_type_t type)
+: StorageAction(model, cost, failed,
+    lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0 , 3),
+    storage, type) {
   XBT_IN("(%s,%g", storage->getName(), cost);
 
   // Must be less than the max bandwidth for all actions
@@ -515,18 +283,17 @@ StorageN11Action::StorageN11Action(ModelPtr model, double cost, bool failed, Sto
   case OPEN:
   case CLOSE:
   case STAT:
-  case LS:
     break;
   case READ:
-    lmm_expand(model->getMaxminSystem(), storage->p_constraintRead,
-                  getVariable(), 1.0);
+    lmm_expand(model->getMaxminSystem(), storage->constraintRead_, getVariable(), 1.0);
     break;
   case WRITE:
-    lmm_expand(model->getMaxminSystem(), storage->p_constraintWrite,
-                  getVariable(), 1.0);
-    ActionPtr action = this;
-    xbt_dynar_push(storage->p_writeActions, &action);
-    ref();
+    lmm_expand(model->getMaxminSystem(), storage->constraintWrite_, getVariable(), 1.0);
+
+    //TODO there is something annoying with what's below. Have to sort it out...
+    //    Action *action = this;
+    //    storage->p_writeActions->push_back(action);
+    //    ref();
     break;
   }
   XBT_OUT();
@@ -534,15 +301,13 @@ StorageN11Action::StorageN11Action(ModelPtr model, double cost, bool failed, Sto
 
 int StorageN11Action::unref()
 {
-  m_refcount--;
-  if (!m_refcount) {
-       if (actionHook::is_linked())
-         p_stateSet->erase(p_stateSet->iterator_to(*this));
+  refcount_--;
+  if (!refcount_) {
+    if (action_hook.is_linked())
+      stateSet_->erase(stateSet_->iterator_to(*this));
     if (getVariable())
       lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
-#ifdef HAVE_TRACING
     xbt_free(getCategory());
-#endif
     delete this;
     return 1;
   }
@@ -551,18 +316,15 @@ int StorageN11Action::unref()
 
 void StorageN11Action::cancel()
 {
-  setState(SURF_ACTION_FAILED);
-  return;
+  setState(Action::State::failed);
 }
 
 void StorageN11Action::suspend()
 {
   XBT_IN("(%p)", this);
-  if (m_suspended != 2) {
-    lmm_update_variable_weight(getModel()->getMaxminSystem(),
-                               getVariable(),
-                               0.0);
-    m_suspended = 1;
+  if (suspended_ != 2) {
+    lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
+    suspended_ = 1;
   }
   XBT_OUT();
 }
@@ -574,7 +336,7 @@ void StorageN11Action::resume()
 
 bool StorageN11Action::isSuspended()
 {
-  return m_suspended == 1;
+  return suspended_ == 1;
 }
 
 void StorageN11Action::setMaxDuration(double /*duration*/)
@@ -587,3 +349,5 @@ void StorageN11Action::setPriority(double /*priority*/)
   THROW_UNIMPLEMENTED;
 }
 
+}
+}