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Fix reverted commit 28937161936e11ceac5acccf0b547055cc67a79e.
[simgrid.git] / 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
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf,
15                                 "Logging specific to the SURF storage module");
16
17 xbt_lib_t storage_lib;
18 int ROUTING_STORAGE_LEVEL;      //Routing for storagelevel
19 int ROUTING_STORAGE_HOST_LEVEL;
20 int SURF_STORAGE_LEVEL;
21 xbt_lib_t storage_type_lib;
22 int ROUTING_STORAGE_TYPE_LEVEL; //Routing for storage_type level
23
24 xbt_dynar_t mount_list = NULL;  /* temporary store of current mount storage */
25
26 surf_model_t surf_storage_model = NULL;
27 lmm_system_t storage_maxmin_system = NULL;
28 static int storage_selective_update = 0;
29 static xbt_swag_t
30     storage_running_action_set_that_does_not_need_being_checked = NULL;
31
32 static xbt_dynar_t storage_list;
33
34 #define GENERIC_LMM_ACTION(action) action->generic_lmm_action
35 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
36
37 static xbt_dict_t parse_storage_content(char *filename, size_t *used_size);
38 static int storage_action_unref(surf_action_t action);
39 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state);
40 static surf_action_t storage_action_execute (void *storage, size_t size, e_surf_action_storage_type_t type);
41
42 static surf_action_t storage_action_ls(void *storage, const char* path)
43 {
44   surf_action_t action = storage_action_execute(storage,0, LS);
45   action->ls_dict = NULL;
46   xbt_dict_t ls_dict = xbt_dict_new();
47
48   char* key;
49   size_t size = 0;
50   xbt_dict_cursor_t cursor = NULL;
51
52   xbt_dynar_t dyn = NULL;
53   char* file = NULL;
54
55   // for each file in the storage content
56   xbt_dict_foreach(((storage_t)storage)->content,cursor,key,size){
57     // Search if file start with the prefix 'path'
58     if(xbt_str_start_with(key,path)){
59       file = &key[strlen(path)];
60
61       // Split file with '/'
62       dyn = xbt_str_split(file,"/");
63       file = xbt_dynar_get_as(dyn,0,char*);
64
65       // file
66       if(xbt_dynar_length(dyn) == 1){
67         xbt_dict_set(ls_dict,file,&size,NULL);
68       }
69       // Directory
70       else
71       {
72         // if directory does not exist yet in the dictionary
73         if(!xbt_dict_get_or_null(ls_dict,file))
74           xbt_dict_set(ls_dict,file,NULL,NULL);
75       }
76       xbt_dynar_free(&dyn);
77     }
78   }
79
80   action->ls_dict = ls_dict;
81   return action;
82 }
83
84 static surf_action_t storage_action_open(void *storage, const char* mount,
85                                          const char* path)
86 {
87   XBT_DEBUG("\tOpen file '%s'",path);
88   xbt_dict_t content_dict = ((storage_t)storage)->content;
89   size_t size = (size_t) xbt_dict_get_or_null(content_dict,path);
90   // if file does not exist create an empty file
91   if(!size){
92     xbt_dict_set(content_dict,path,&size,NULL);
93     XBT_DEBUG("File '%s' was not found, file created.",path);
94   }
95   surf_file_t file = xbt_new0(s_surf_file_t,1);
96   file->name = xbt_strdup(path);
97   file->size = size;
98   file->mount = xbt_strdup(mount);
99
100   surf_action_t action = storage_action_execute(storage,0, OPEN);
101   action->file = (void *)file;
102   return action;
103 }
104
105 static surf_action_t storage_action_close(void *storage, surf_file_t fd)
106 {
107   char *filename = fd->name;
108   XBT_DEBUG("\tClose file '%s' size '%zu'",filename,fd->size);
109   // unref write actions from storage
110   surf_action_storage_t write_action;
111   unsigned int i;
112   xbt_dynar_foreach(((storage_t)storage)->write_actions,i,write_action) {
113     if ((write_action->generic_lmm_action.generic_action.file) == fd) {
114       xbt_dynar_cursor_rm(((storage_t)storage)->write_actions, &i);
115       storage_action_unref((surf_action_t) write_action);
116     }
117   }
118
119   free(fd->name);
120   free(fd->mount);
121   xbt_free(fd);
122   surf_action_t action = storage_action_execute(storage,0, CLOSE);
123   return action;
124 }
125
126 static surf_action_t storage_action_read(void *storage, size_t size,
127                                          surf_file_t fd)
128 {
129   if(size > fd->size)
130     size = fd->size;
131   surf_action_t action = storage_action_execute(storage,size,READ);
132   return action;
133 }
134
135 static surf_action_t storage_action_write(void *storage, size_t size, 
136                                           surf_file_t fd)
137 {
138   char *filename = fd->name;
139   XBT_DEBUG("\tWrite file '%s' size '%zu/%zu'",filename,size,fd->size);
140
141   surf_action_t action = storage_action_execute(storage,size,WRITE);
142   action->file = fd;
143
144   // If the storage is full
145   if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
146     storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
147   }
148   return action;
149 }
150
151 static surf_action_t storage_action_execute (void *storage, size_t size, e_surf_action_storage_type_t type)
152 {
153   surf_action_storage_t action = NULL;
154   storage_t STORAGE = storage;
155
156   XBT_IN("(%s,%zu", surf_resource_name(STORAGE), size);
157   action =
158       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
159           STORAGE->state_current != SURF_RESOURCE_ON);
160
161   // Save the storage on action
162   action->storage = storage;
163   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
164                                                    calloc but it seems to help valgrind... */
165
166   GENERIC_LMM_ACTION(action).variable =
167       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
168
169   // Must be less than the max bandwidth for all actions
170   lmm_expand(storage_maxmin_system, STORAGE->constraint,
171              GENERIC_LMM_ACTION(action).variable, 1.0);
172
173   switch(type) {
174   case OPEN:
175   case CLOSE:
176   case STAT:
177   case LS:
178     break;
179   case READ:
180     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
181                GENERIC_LMM_ACTION(action).variable, 1.0);
182     break;
183   case WRITE:
184     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
185                GENERIC_LMM_ACTION(action).variable, 1.0);
186     xbt_dynar_push(((storage_t)storage)->write_actions,&action);
187     surf_action_ref((surf_action_t) action);
188     break;
189   }
190   action->type = type;
191   XBT_OUT();
192   return (surf_action_t) action;
193 }
194
195 static xbt_dict_t storage_get_properties(const void *storage)
196 {
197   return surf_resource_properties(surf_storage_resource_priv(storage));
198 }
199
200 static void* storage_create_resource(const char* id, const char* model,
201     const char* type_id, const char* content_name, const char* content_type, xbt_dict_t properties){
202   storage_t storage = NULL;
203
204   xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
205               "Storage '%s' declared several times in the platform file",
206               id);
207   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
208           surf_storage_model, id, properties);
209
210   storage->generic_resource.name = xbt_strdup(id);
211   storage->state_current = SURF_RESOURCE_ON;
212   storage->used_size = 0;
213   storage->size = 0;
214   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
215
216   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
217   double Bread =
218       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bread"));
219   double Bwrite =
220       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bwrite"));
221   double Bconnection =
222       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,
223                                             "Bconnection"));
224   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%lu'",Bconnection,Bread,Bwrite,(unsigned long)storage_type->size);
225   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
226   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
227   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
228   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
229   storage->content_type = xbt_strdup(content_type);
230   storage->size = storage_type->size;
231   storage->type_id = xbt_strdup(type_id);
232
233   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
234
235   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",
236       id,
237       model,
238       type_id,
239       storage_type->properties,
240       Bread);
241
242   if (!storage_list)
243     storage_list = xbt_dynar_new(sizeof(char *),NULL);
244   xbt_dynar_push(storage_list,&storage);
245
246   return storage;
247 }
248
249 static void storage_finalize(void)
250 {
251   lmm_system_free(storage_maxmin_system);
252   storage_maxmin_system = NULL;
253
254   surf_model_exit(surf_storage_model);
255   surf_storage_model = NULL;
256
257   xbt_dynar_free(&storage_list);
258
259   xbt_swag_free
260       (storage_running_action_set_that_does_not_need_being_checked);
261   storage_running_action_set_that_does_not_need_being_checked = NULL;
262 }
263
264 static void storage_update_actions_state(double now, double delta)
265 {
266   surf_action_storage_t action = NULL;
267   surf_action_storage_t next_action = NULL;
268   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
269
270   // Update the disk usage
271   // Update the file size
272   // For each action of type write
273   xbt_swag_foreach_safe(action, next_action, running_actions) {
274     if(action->type == WRITE)
275     {
276       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
277       /* Hack to avoid rounding differences between x86 and x86_64
278        * (note that the next sizes are of type size_t). */
279       long incr = delta * rate + MAXMIN_PRECISION;
280       ((storage_t)(action->storage))->used_size += incr; // disk usage
281       ((surf_action_t)action)->file->size += incr; // file size
282     }
283   }
284
285   xbt_swag_foreach_safe(action, next_action, running_actions) {
286
287     double_update(&(GENERIC_ACTION(action).remains),
288                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
289
290     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
291       double_update(&(GENERIC_ACTION(action).max_duration), delta);
292
293     if(GENERIC_ACTION(action).remains > 0 &&
294         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
295         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
296     {
297       GENERIC_ACTION(action).finish = surf_get_clock();
298       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
299     } else if ((GENERIC_ACTION(action).remains <= 0) &&
300         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
301     {
302       GENERIC_ACTION(action).finish = surf_get_clock();
303       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
304     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
305                (GENERIC_ACTION(action).max_duration <= 0))
306     {
307       GENERIC_ACTION(action).finish = surf_get_clock();
308       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
309     }
310   }
311
312   return;
313 }
314
315 static double storage_share_resources(double NOW)
316 {
317   XBT_DEBUG("storage_share_resources %f",NOW);
318   s_surf_action_storage_t action;
319   unsigned int i,j;
320   storage_t storage;
321   surf_action_storage_t write_action;
322
323   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
324       xbt_swag_offset(action, generic_lmm_action.variable),
325       storage_maxmin_system, lmm_solve);
326
327   double rate;
328   // Foreach disk
329   xbt_dynar_foreach(storage_list,i,storage)
330   {
331     rate = 0;
332     // Foreach write action on disk
333     xbt_dynar_foreach(storage->write_actions,j,write_action)
334     {
335       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
336     }
337     if(rate > 0)
338       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
339   }
340
341   return min_completion;
342 }
343
344 static int storage_resource_used(void *resource_id)
345 {
346   THROW_UNIMPLEMENTED;
347   return 0;
348 }
349
350 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
351                                  double value, double time)
352 {
353   THROW_UNIMPLEMENTED;
354 }
355
356 static int storage_action_unref(surf_action_t action)
357 {
358   action->refcount--;
359   if (!action->refcount) {
360     xbt_swag_remove(action, action->state_set);
361     if (((surf_action_lmm_t) action)->variable)
362       lmm_variable_free(storage_maxmin_system,
363                         ((surf_action_lmm_t) action)->variable);
364 #ifdef HAVE_TRACING
365     xbt_free(action->category);
366 #endif
367     surf_action_free(&action);
368     return 1;
369   }
370   return 0;
371 }
372
373 static void storage_action_cancel(surf_action_t action)
374 {
375   surf_action_state_set(action, SURF_ACTION_FAILED);
376   return;
377 }
378
379 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
380 {
381   surf_action_state_set(action, state);
382   return;
383 }
384
385 static void storage_action_suspend(surf_action_t action)
386 {
387   XBT_IN("(%p)", action);
388   if (((surf_action_lmm_t) action)->suspended != 2) {
389     lmm_update_variable_weight(storage_maxmin_system,
390                                ((surf_action_lmm_t) action)->variable,
391                                0.0);
392     ((surf_action_lmm_t) action)->suspended = 1;
393   }
394   XBT_OUT();
395 }
396
397 static void storage_action_resume(surf_action_t action)
398 {
399   THROW_UNIMPLEMENTED;
400 }
401
402 static int storage_action_is_suspended(surf_action_t action)
403 {
404   return (((surf_action_lmm_t) action)->suspended == 1);
405 }
406
407 static void storage_action_set_max_duration(surf_action_t action, double duration)
408 {
409   THROW_UNIMPLEMENTED;
410 }
411
412 static void storage_action_set_priority(surf_action_t action, double priority)
413 {
414   THROW_UNIMPLEMENTED;
415 }
416
417 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
418 {
419   void* stype = xbt_lib_get_or_null(storage_type_lib,
420                                     storage->type_id,
421                                     ROUTING_STORAGE_TYPE_LEVEL);
422   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
423
424   // if storage content is not specified use the content of storage_type if exist
425   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
426     storage->content = ((storage_type_t) stype)->content;
427     storage->content_type = ((storage_type_t) stype)->content_type;
428     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
429         storage->id,((storage_type_t) stype)->content_type,
430         ((storage_type_t) stype)->type_id);
431   }
432
433   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
434       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
435       "\n\t\tproperties '%p'\n",
436       storage->id,
437       ((storage_type_t) stype)->model,
438       ((storage_type_t) stype)->type_id,
439       storage->content,
440       storage->content_type,
441       ((storage_type_t) stype)->properties);
442
443   storage_create_resource(storage->id,
444      ((storage_type_t) stype)->model,
445      ((storage_type_t) stype)->type_id,
446      storage->content,
447      storage->content_type,
448      storage->properties);
449 }
450
451 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
452 {
453   XBT_DEBUG("parse_mstorage_init");
454 }
455
456 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
457 {
458   XBT_DEBUG("parse_storage_type_init");
459 }
460
461 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
462 {
463   XBT_DEBUG("parse_mount_init");
464 }
465
466 static void storage_define_callbacks()
467 {
468   sg_platf_storage_add_cb(parse_storage_init);
469   sg_platf_storage_type_add_cb(parse_storage_type_init);
470   sg_platf_mstorage_add_cb(parse_mstorage_init);
471   sg_platf_mount_add_cb(parse_mount_init);
472 }
473
474 static void surf_storage_model_init_internal(void)
475 {
476   s_surf_action_t action;
477
478   XBT_DEBUG("surf_storage_model_init_internal");
479   surf_storage_model = surf_model_init();
480
481   storage_running_action_set_that_does_not_need_being_checked =
482       xbt_swag_new(xbt_swag_offset(action, state_hookup));
483
484   surf_storage_model->name = "Storage";
485   surf_storage_model->action_unref = storage_action_unref;
486   surf_storage_model->action_cancel = storage_action_cancel;
487   surf_storage_model->action_state_set = storage_action_state_set;
488
489   surf_storage_model->model_private->finalize = storage_finalize;
490   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
491   surf_storage_model->model_private->share_resources = storage_share_resources;
492   surf_storage_model->model_private->resource_used = storage_resource_used;
493   surf_storage_model->model_private->update_resource_state = storage_resources_state;
494
495   surf_storage_model->suspend = storage_action_suspend;
496   surf_storage_model->resume = storage_action_resume;
497   surf_storage_model->is_suspended = storage_action_is_suspended;
498   surf_storage_model->set_max_duration = storage_action_set_max_duration;
499   surf_storage_model->set_priority = storage_action_set_priority;
500
501   surf_storage_model->extension.storage.open = storage_action_open;
502   surf_storage_model->extension.storage.close = storage_action_close;
503   surf_storage_model->extension.storage.read = storage_action_read;
504   surf_storage_model->extension.storage.write = storage_action_write;
505   surf_storage_model->extension.storage.ls = storage_action_ls;
506
507   surf_storage_model->extension.storage.get_properties = storage_get_properties;
508
509   if (!storage_maxmin_system) {
510     storage_maxmin_system = lmm_system_new(storage_selective_update);
511   }
512
513 }
514
515 void surf_storage_model_init_default(void)
516 {
517   surf_storage_model_init_internal();
518   storage_define_callbacks();
519
520   xbt_dynar_push(model_list, &surf_storage_model);
521 }
522
523 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
524 {
525   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
526                "Reading a storage, processing unit \"%s\" already exists", storage->id);
527
528   // Verification of an existing type_id
529 #ifndef NDEBUG
530   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
531 #endif
532   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
533
534   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
535       storage->id,
536       storage->type_id,
537       storage->content);
538
539   xbt_lib_set(storage_lib,
540       storage->id,
541       ROUTING_STORAGE_LEVEL,
542       (void *) xbt_strdup(storage->type_id));
543 }
544
545 static xbt_dict_t parse_storage_content(char *filename, size_t *used_size)
546 {
547   *used_size = 0;
548   if ((!filename) || (strcmp(filename, "") == 0))
549     return NULL;
550
551   xbt_dict_t parse_content = xbt_dict_new_homogeneous(NULL);
552   FILE *file = NULL;
553
554   file = surf_fopen(filename, "r");
555   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
556               xbt_str_join(surf_path, ":"));
557
558   char *line = NULL;
559   size_t len = 0;
560   ssize_t read;
561   char path[1024];
562   size_t size;
563
564
565   while ((read = xbt_getline(&line, &len, file)) != -1) {
566     if (read){
567     if(sscanf(line,"%s %zu",path, &size)==2) {
568         *used_size += size;
569         xbt_dict_set(parse_content,path,(void*) size,NULL);
570       } else {
571         xbt_die("Be sure of passing a good format for content file.\n");
572       }
573     }
574   }
575   free(line);
576   fclose(file);
577   return parse_content;
578 }
579
580 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
581 {
582   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
583                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
584
585   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
586   stype->model = xbt_strdup(storage_type->model);
587   stype->properties = storage_type->properties;
588   stype->content = xbt_strdup(storage_type->content);
589   stype->content_type = xbt_strdup(storage_type->content_type);
590   stype->type_id = xbt_strdup(storage_type->id);
591   stype->size = storage_type->size;
592
593   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
594       "content '%s', and content_type '%s'",
595       stype->type_id,
596       stype->model,
597       storage_type->content,
598       storage_type->content_type);
599
600   xbt_lib_set(storage_type_lib,
601       stype->type_id,
602       ROUTING_STORAGE_TYPE_LEVEL,
603       (void *) stype);
604 }
605 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
606 {
607   THROW_UNIMPLEMENTED;
608 //  mount_t mnt = xbt_new0(s_mount_t, 1);
609 //  mnt->id = xbt_strdup(mstorage->type_id);
610 //  mnt->name = xbt_strdup(mstorage->name);
611 //
612 //  if(!mount_list){
613 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
614 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
615 //  }
616 //  xbt_dynar_push(mount_list,(void *) mnt);
617 //  free(mnt->id);
618 //  free(mnt->name);
619 //  xbt_free(mnt);
620 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
621 }
622
623 static void mount_free(void *p)
624 {
625   mount_t mnt = p;
626   xbt_free(mnt->name);
627 }
628
629 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
630 {
631   // Verification of an existing storage
632 #ifndef NDEBUG
633   void* storage = xbt_lib_get_or_null(storage_lib, mount->storageId,ROUTING_STORAGE_LEVEL);
634 #endif
635   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->storageId);
636
637   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
638
639   s_mount_t mnt;
640   mnt.storage =
641     surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
642   mnt.name = xbt_strdup(mount->name);
643
644   if(!mount_list){
645     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
646     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
647   }
648   xbt_dynar_push(mount_list,&mnt);
649 }
650
651 static XBT_INLINE void routing_storage_type_free(void *r)
652 {
653   storage_type_t stype = r;
654   free(stype->model);
655   free(stype->type_id);
656   free(stype->content);
657   free(stype->content_type);
658   xbt_dict_free(&(stype->properties));
659   free(stype);
660 }
661
662 static XBT_INLINE void surf_storage_resource_free(void *r)
663 {
664   // specific to storage
665   storage_t storage = r;
666   xbt_dict_free(&storage->content);
667   xbt_dynar_free(&storage->write_actions);
668   free(storage->type_id);
669   free(storage->content_type);
670   // generic resource
671   surf_resource_free(r);
672 }
673
674 static XBT_INLINE void routing_storage_host_free(void *r)
675 {
676   xbt_dynar_t dyn = r;
677   xbt_dynar_free(&dyn);
678 }
679
680 void storage_register_callbacks() {
681
682   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
683   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
684   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
685   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
686
687   sg_platf_storage_add_cb(storage_parse_storage);
688   sg_platf_mstorage_add_cb(storage_parse_mstorage);
689   sg_platf_storage_type_add_cb(storage_parse_storage_type);
690   sg_platf_mount_add_cb(storage_parse_mount);
691 }
692