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Change parameters order for msg_file_read, msg_file_write and in all their internal...
[simgrid.git] / src / surf / storage.c
index a0c00cc..c36d8e6 100644 (file)
@@ -1,8 +1,8 @@
-/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012. The SimGrid Team.
- * All rights reserved.                                                                 */
+/* Copyright (c) 2004-2013. The SimGrid Team.
+ * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package.             */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
 
 #include "xbt/ex.h"
 #include "xbt/dict.h"
@@ -10,6 +10,7 @@
 #include "surf_private.h"
 #include "storage_private.h"
 #include "surf/surf_resource.h"
+#include <inttypes.h>
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf,
                                 "Logging specific to the SURF storage module");
@@ -29,172 +30,235 @@ static int storage_selective_update = 0;
 static xbt_swag_t
     storage_running_action_set_that_does_not_need_being_checked = NULL;
 
+static xbt_dynar_t storage_list;
+
 #define GENERIC_LMM_ACTION(action) action->generic_lmm_action
 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
 
-typedef enum {
-  READ = 0,
-  WRITE = 1,
-  DEFAULT = 2
-} STORAGE_execute_type_t;
-
-typedef struct surf_storage {
-  s_surf_resource_t generic_resource;
-  const char* type;
-  const char* content; /*should be a dict */
-} s_surf_storage_t, *surf_storage_t;
-
+static xbt_dict_t parse_storage_content(char *filename, sg_storage_size_t *used_size);
+static int storage_action_unref(surf_action_t action);
 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state);
-static surf_action_t storage_action_sleep (void *storage, double duration);
-static surf_action_t storage_action_execute (void *storage, size_t size, STORAGE_execute_type_t type);
+static surf_action_t storage_action_execute (void *storage, sg_storage_size_t size, e_surf_action_storage_type_t type);
+
+static surf_action_t storage_action_ls(void *storage, const char* path)
+{
+  surf_action_t action = storage_action_execute(storage,0, LS);
+  action->ls_dict = NULL;
+  xbt_dict_t ls_dict = xbt_dict_new_homogeneous(NULL);
+
+  char* key;
+  sg_storage_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(((storage_t)storage)->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){
+        xbt_dict_set(ls_dict,file,&size,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->ls_dict = ls_dict;
+  return action;
+}
 
-static surf_action_t storage_action_open(void *storage, const char* path, const char* mode)
+static surf_action_t storage_action_open(void *storage, const char* mount,
+                                         const char* path)
 {
   XBT_DEBUG("\tOpen file '%s'",path);
-  char *storage_type_id = xbt_lib_get_or_null(
-      storage_lib,
-      ((storage_t)storage)->generic_resource.name,
-      ROUTING_STORAGE_LEVEL);
-  storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, storage_type_id,ROUTING_STORAGE_TYPE_LEVEL);
-  xbt_dict_t content_dict = storage_type->content;
-  content_t content = xbt_dict_get(content_dict,path);
-
+  xbt_dict_t content_dict = ((storage_t)storage)->content;
+  sg_storage_size_t size = (sg_storage_size_t) xbt_dict_get_or_null(content_dict,path);
+
+  // if file does not exist create an empty file
+  if(!size){
+       size = 0;
+    xbt_dict_set(content_dict,path,&size,NULL);
+    XBT_DEBUG("File '%s' was not found, file created.",path);
+  }
   surf_file_t file = xbt_new0(s_surf_file_t,1);
   file->name = xbt_strdup(path);
-  file->content = content;
+  file->size = size;
+  file->mount = xbt_strdup(mount);
 
-  surf_action_t action = storage_action_execute(storage,0, DEFAULT);
+  surf_action_t action = storage_action_execute(storage,0, OPEN);
   action->file = (void *)file;
   return action;
 }
 
-static surf_action_t storage_action_close(void *storage, surf_file_t fp)
+static surf_action_t storage_action_close(void *storage, surf_file_t fd)
 {
-  char *filename = fp->name;
-  free(fp->name);
-  fp->content = NULL;
-  xbt_free(fp);
-  surf_action_t action = storage_action_execute(storage,0, DEFAULT);
-  XBT_DEBUG("\tClose file '%s'",filename);
+  char *filename = fd->name;
+  XBT_DEBUG("\tClose file '%s' size '%" PRIu64 "'", filename, fd->size);
+  // unref write actions from storage
+  surf_action_storage_t write_action;
+  unsigned int i;
+  xbt_dynar_foreach(((storage_t)storage)->write_actions,i,write_action) {
+    if ((write_action->generic_lmm_action.generic_action.file) == fd) {
+      xbt_dynar_cursor_rm(((storage_t)storage)->write_actions, &i);
+      storage_action_unref((surf_action_t) write_action);
+    }
+  }
+  free(fd->name);
+  free(fd->mount);
+  xbt_free(fd);
+  surf_action_t action = storage_action_execute(storage,0, CLOSE);
   return action;
 }
 
-static surf_action_t storage_action_read(void *storage, void* ptr, size_t size, size_t nmemb, surf_file_t stream)
+static surf_action_t storage_action_read(void *storage, surf_file_t fd, sg_storage_size_t size)
 {
-  char *filename = stream->name;
-  content_t content = stream->content;
-  XBT_DEBUG("\tRead file '%s' size '%Zu/%Zu'",filename,size,content->size);
-  if(size > content->size)
-    size = content->size;
+  if(size > fd->size)
+    size = fd->size;
   surf_action_t action = storage_action_execute(storage,size,READ);
   return action;
 }
 
-static surf_action_t storage_action_write(void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
+static surf_action_t storage_action_write(void *storage, surf_file_t fd, sg_storage_size_t size)
 {
-  char *filename = stream->name;
-  content_t content = stream->content;
-  XBT_DEBUG("\tWrite file '%s' size '%Zu/%Zu'",filename,size,content->size);
+  char *filename = fd->name;
+  XBT_DEBUG("\tWrite file '%s' size '%" PRIu64 "/%" PRIu64 "'",
+            filename, size, fd->size);
 
   surf_action_t action = storage_action_execute(storage,size,WRITE);
-  content->size += size;
-  return action;
-}
+  action->file = fd;
 
-static surf_action_t storage_action_stat(void *storage, int fd, void* buf)
-{
-  THROW_UNIMPLEMENTED;
-  return NULL;
+  // If the storage is full
+  if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
+    storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
+  }
+  return action;
 }
 
-static surf_action_t storage_action_execute (void *storage, size_t size, STORAGE_execute_type_t type)
+static surf_action_t storage_action_execute (void *storage, sg_storage_size_t size, e_surf_action_storage_type_t type)
 {
   surf_action_storage_t action = NULL;
   storage_t STORAGE = storage;
 
-  XBT_IN("(%s,%Zu)", surf_resource_name(STORAGE), size);
+  XBT_IN("(%s,%" PRIu64, surf_resource_name(STORAGE), size);
   action =
       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
           STORAGE->state_current != SURF_RESOURCE_ON);
 
+  // Save the storage on action
+  action->storage = storage;
   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
                                                    calloc but it seems to help valgrind... */
 
   GENERIC_LMM_ACTION(action).variable =
       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
 
-  if(type == DEFAULT)
+  // Must be less than the max bandwidth for all actions
   lmm_expand(storage_maxmin_system, STORAGE->constraint,
              GENERIC_LMM_ACTION(action).variable, 1.0);
-  else if(type == READ)
+
+  switch(type) {
+  case OPEN:
+  case CLOSE:
+  case STAT:
+  case LS:
+    break;
+  case READ:
     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
                GENERIC_LMM_ACTION(action).variable, 1.0);
-  else if(type == WRITE)
+    break;
+  case WRITE:
     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
                GENERIC_LMM_ACTION(action).variable, 1.0);
-  else xbt_die("storage_action_execute with type '%d'",(int) type);
-
+    xbt_dynar_push(((storage_t)storage)->write_actions,&action);
+    surf_action_ref((surf_action_t) action);
+    break;
+  }
+  action->type = type;
   XBT_OUT();
   return (surf_action_t) action;
 }
 
-static surf_action_t storage_action_sleep (void *storage, double duration)
+static xbt_dict_t storage_get_properties(const void *storage)
 {
-  surf_action_storage_t action = NULL;
-
-  if (duration > 0)
-    duration = MAX(duration, MAXMIN_PRECISION);
-
-  XBT_IN("(%s,%g)", surf_resource_name(storage), duration);
-  action = (surf_action_storage_t) storage_action_execute(storage, 1.0, DEFAULT);
-  GENERIC_ACTION(action).max_duration = duration;
-  GENERIC_LMM_ACTION(action).suspended = 2;
-  if (duration == NO_MAX_DURATION) {
-    /* Move to the *end* of the corresponding action set. This convention
-       is used to speed up update_resource_state  */
-    xbt_swag_remove(action, ((surf_action_t) action)->state_set);
-    ((surf_action_t) action)->state_set =
-        storage_running_action_set_that_does_not_need_being_checked;
-    xbt_swag_insert(action, ((surf_action_t) action)->state_set);
-  }
+  return surf_resource_properties(surf_storage_resource_priv(storage));
+}
 
-  lmm_update_variable_weight(storage_maxmin_system,
-                             GENERIC_LMM_ACTION(action).variable, 0.0);
+static xbt_dict_t storage_get_content(void *storage)
+{
+  /* For the moment this action has no cost, but in the future we could take in account access latency of the disk */
+  /*surf_action_t action = storage_action_execute(storage,0, LS);*/
 
-  XBT_OUT();
-  return (surf_action_t) action;
+  void *st = surf_storage_resource_priv(storage);
+  xbt_dict_t content_dict = xbt_dict_new_homogeneous(NULL);
+  xbt_dict_cursor_t cursor = NULL;
+  char *file;
+  char *size;
+  xbt_dict_foreach(((storage_t)st)->content, cursor, file, size){
+    xbt_dict_set(content_dict,file,(void*)size,NULL);
+  }
+  return content_dict;
 }
 
-static void* storage_create_resource(const char* id, const char* model,const char* type_id)
-{
+static void* storage_create_resource(const char* id, const char* model,
+    const char* type_id, const char* content_name, const char* content_type, xbt_dict_t properties){
   storage_t storage = NULL;
 
-  xbt_assert(!surf_storage_resource_by_name(id),
+  xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
               "Storage '%s' declared several times in the platform file",
               id);
   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
-          surf_storage_model, id,NULL);
+          surf_storage_model, id, properties, NULL);
 
   storage->state_current = SURF_RESOURCE_ON;
+  storage->used_size = 0;
+  storage->size = 0;
+  storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
 
   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
-  size_t Bread  = atof(xbt_dict_get(storage_type->properties,"Bread"));
-  size_t Bwrite = atof(xbt_dict_get(storage_type->properties,"Bwrite"));
-  size_t Bconnexion   = atof(xbt_dict_get(storage_type->properties,"Bconnexion"));
-  XBT_INFO("Create resource with Bconnexion '%Zu' Bread '%Zu' Bwrite '%Zu'",Bconnexion,Bread,Bwrite);
-  storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnexion);
+  double Bread =
+      surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bread"));
+  double Bwrite =
+      surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bwrite"));
+  double Bconnection =
+      surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,
+                                            "Bconnection"));
+  XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%lu'",Bconnection,Bread,Bwrite,(unsigned long)storage_type->size);
+  storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
+  storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
+  storage->content_type = xbt_strdup(content_type);
+  storage->size = storage_type->size;
+  storage->type_id = xbt_strdup(type_id);
 
   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\tmodel '%s' \n\t\tproperties '%p'\n\t\tBread '%Zu'\n",
+  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",
       id,
       model,
       type_id,
       storage_type->properties,
       Bread);
 
+  if (!storage_list)
+    storage_list = xbt_dynar_new(sizeof(char *),NULL);
+  xbt_dynar_push(storage_list,&storage);
+
   return storage;
 }
 
@@ -206,6 +270,8 @@ static void storage_finalize(void)
   surf_model_exit(surf_storage_model);
   surf_storage_model = NULL;
 
+  xbt_dynar_free(&storage_list);
+
   xbt_swag_free
       (storage_running_action_set_that_does_not_need_being_checked);
   storage_running_action_set_that_does_not_need_being_checked = NULL;
@@ -216,18 +282,45 @@ static void storage_update_actions_state(double now, double delta)
   surf_action_storage_t action = NULL;
   surf_action_storage_t next_action = NULL;
   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
+
+
   xbt_swag_foreach_safe(action, next_action, running_actions) {
+    if(action->type == WRITE)
+    {
+      // Update the disk usage
+      // Update the file size
+      // Update the storage content (with file size)
+      double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
+      /* Hack to avoid rounding differences between x86 and x86_64
+       * (note that the next sizes are of type sg_storage_size_t). */
+      long incr = delta * rate + MAXMIN_PRECISION;
+      ((storage_t)(action->storage))->used_size += incr; // disk usage
+      ((surf_action_t)action)->file->size += incr; // file size
+
+      xbt_dict_t content_dict = ((storage_t)(action->storage))->content;
+      xbt_dict_set(content_dict,((surf_action_t)action)->file->name,(void*)(((surf_action_t)action)->file->size),NULL);
+    }
 
     double_update(&(GENERIC_ACTION(action).remains),
                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
+
     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
       double_update(&(GENERIC_ACTION(action).max_duration), delta);
-    if ((GENERIC_ACTION(action).remains <= 0) &&
-        (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0)) {
+
+    if(GENERIC_ACTION(action).remains > 0 &&
+        lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
+        ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
+    {
+      GENERIC_ACTION(action).finish = surf_get_clock();
+      storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
+    } else if ((GENERIC_ACTION(action).remains <= 0) &&
+        (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
+    {
       GENERIC_ACTION(action).finish = surf_get_clock();
       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
-               (GENERIC_ACTION(action).max_duration <= 0)) {
+               (GENERIC_ACTION(action).max_duration <= 0))
+    {
       GENERIC_ACTION(action).finish = surf_get_clock();
       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
     }
@@ -240,9 +333,29 @@ static double storage_share_resources(double NOW)
 {
   XBT_DEBUG("storage_share_resources %f",NOW);
   s_surf_action_storage_t action;
-  return generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
+  unsigned int i,j;
+  storage_t storage;
+  surf_action_storage_t write_action;
+
+  double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
       xbt_swag_offset(action, generic_lmm_action.variable),
       storage_maxmin_system, lmm_solve);
+
+  double rate;
+  // Foreach disk
+  xbt_dynar_foreach(storage_list,i,storage)
+  {
+    rate = 0;
+    // Foreach write action on disk
+    xbt_dynar_foreach(storage->write_actions,j,write_action)
+    {
+      rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
+    }
+    if(rate > 0)
+      min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
+  }
+
+  return min_completion;
 }
 
 static int storage_resource_used(void *resource_id)
@@ -324,16 +437,32 @@ static void parse_storage_init(sg_platf_storage_cbarg_t storage)
                                     storage->type_id,
                                     ROUTING_STORAGE_TYPE_LEVEL);
   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
-//  XBT_INFO("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",
-//      storage->id,
-//      ((storage_type_t) stype)->model,
-//      ((storage_type_t) stype)->type_id,
-//      ((storage_type_t) stype)->content,
-//      ((storage_type_t) stype)->properties);
-
- storage_create_resource(storage->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_type_t) stype)->properties);
+
+  storage_create_resource(storage->id,
      ((storage_type_t) stype)->model,
-     ((storage_type_t) stype)->type_id);
+     ((storage_type_t) stype)->type_id,
+     storage->content,
+     storage->content_type,
+     storage->properties);
 }
 
 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
@@ -390,8 +519,9 @@ static void surf_storage_model_init_internal(void)
   surf_storage_model->extension.storage.close = storage_action_close;
   surf_storage_model->extension.storage.read = storage_action_read;
   surf_storage_model->extension.storage.write = storage_action_write;
-  surf_storage_model->extension.storage.stat = storage_action_stat;
-  surf_storage_model->extension.storage.create_resource = storage_create_resource;
+  surf_storage_model->extension.storage.ls = storage_action_ls;
+  surf_storage_model->extension.storage.get_properties = storage_get_properties;
+  surf_storage_model->extension.storage.get_content = storage_get_content;
 
   if (!storage_maxmin_system) {
     storage_maxmin_system = lmm_system_new(storage_selective_update);
@@ -418,9 +548,10 @@ static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
 #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'",
+  XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
       storage->id,
-      storage->type_id);
+      storage->type_id,
+      storage->content);
 
   xbt_lib_set(storage_lib,
       storage->id,
@@ -428,23 +559,13 @@ static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
       (void *) xbt_strdup(storage->type_id));
 }
 
-static void free_storage_content(void *p)
-{
-  content_t content = p;
-  free(content->date);
-  free(content->group);
-  free(content->time);
-  free(content->user);
-  free(content->user_rights);
-  free(content);
-}
-
-static xbt_dict_t parse_storage_content(const char *filename)
+static xbt_dict_t parse_storage_content(char *filename, sg_storage_size_t *used_size)
 {
+  *used_size = 0;
   if ((!filename) || (strcmp(filename, "") == 0))
     return NULL;
 
-  xbt_dict_t parse_content = xbt_dict_new_homogeneous(free_storage_content);
+  xbt_dict_t parse_content = xbt_dict_new_homogeneous(NULL);
   FILE *file = NULL;
 
   file = surf_fopen(filename, "r");
@@ -454,35 +575,20 @@ static xbt_dict_t parse_storage_content(const char *filename)
   char *line = NULL;
   size_t len = 0;
   ssize_t read;
-  char user_rights[12];
-  char user[100];
-  char group[100];
-  char date[12];
-  char time[12];
   char path[1024];
-  int nb, size;
-
-  content_t content;
-
-  while ((read = getline(&line, &len, file)) != -1) {
-    content = xbt_new0(s_content_t,1);
-    if(sscanf(line,"%s %d %s %s %d %s %s %s",user_rights,&nb,user,group,&size,date,time,path)==8) {
-      content->date = xbt_strdup(date);
-      content->group = xbt_strdup(group);
-      content->size = size;
-      content->time = xbt_strdup(time);
-      content->user = xbt_strdup(user);
-      content->user_rights = xbt_strdup(user_rights);
-      xbt_dict_set(parse_content,path,content,NULL);
-    } else {
-      xbt_die("Be sure of passing a good format for content file.\n");
-      // You can generate this kind of file with command line:
-      // find /path/you/want -type f -exec ls -l {} \; 2>/dev/null > ./content.txt
+  sg_storage_size_t size;
+
+  while ((read = xbt_getline(&line, &len, file)) != -1) {
+    if (read){
+    if (sscanf(line,"%s %" SCNu64, path, &size) == 2) {
+        *used_size += size;
+        xbt_dict_set(parse_content,path,(void*) size,NULL);
+      } else {
+        xbt_die("Be sure of passing a good format for content file.\n");
+      }
     }
   }
-  if (line)
-      free(line);
-
+  free(line);
   fclose(file);
   return parse_content;
 }
@@ -495,14 +601,17 @@ static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_typ
   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 = parse_storage_content(storage_type->content);
+  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;
 
-  XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s' content '%s' and properties '%p'",
+  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,
-      stype->properties);
+      storage_type->content_type);
 
   xbt_lib_set(storage_type_lib,
       stype->type_id,
@@ -537,14 +646,15 @@ 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->id,ROUTING_STORAGE_LEVEL);
+  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->id);
+  xbt_assert(storage,"Disk id \"%s\" does not exists", mount->storageId);
 
-  XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->id, mount->name);
+  XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 
   s_mount_t mnt;
-  mnt.id = surf_storage_resource_by_name(mount->id);
+  mnt.storage =
+    surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
   mnt.name = xbt_strdup(mount->name);
 
   if(!mount_list){
@@ -559,11 +669,24 @@ static XBT_INLINE void routing_storage_type_free(void *r)
   storage_type_t stype = r;
   free(stype->model);
   free(stype->type_id);
+  free(stype->content);
+  free(stype->content_type);
   xbt_dict_free(&(stype->properties));
-  xbt_dict_free(&(stype->content));
   free(stype);
 }
 
+static XBT_INLINE void surf_storage_resource_free(void *r)
+{
+  // specific to storage
+  storage_t storage = r;
+  xbt_dict_free(&storage->content);
+  xbt_dynar_free(&storage->write_actions);
+  free(storage->type_id);
+  free(storage->content_type);
+  // generic resource
+  surf_resource_free(r);
+}
+
 static XBT_INLINE void routing_storage_host_free(void *r)
 {
   xbt_dynar_t dyn = r;
@@ -575,10 +698,11 @@ void storage_register_callbacks() {
   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
   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_resource_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);
 }
+