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[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 #include <inttypes.h>
14
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf,
16                                 "Logging specific to the SURF storage module");
17
18 xbt_lib_t storage_lib;
19 int ROUTING_STORAGE_LEVEL;      //Routing for storagelevel
20 int ROUTING_STORAGE_HOST_LEVEL;
21 int SURF_STORAGE_LEVEL;
22 xbt_lib_t storage_type_lib;
23 int ROUTING_STORAGE_TYPE_LEVEL; //Routing for storage_type level
24
25 xbt_dynar_t mount_list = NULL;  /* temporary store of current mount storage */
26
27 surf_model_t surf_storage_model = NULL;
28 lmm_system_t storage_maxmin_system = NULL;
29 static int storage_selective_update = 0;
30 static xbt_swag_t
31     storage_running_action_set_that_does_not_need_being_checked = NULL;
32
33 static xbt_dynar_t storage_list;
34
35 #define GENERIC_LMM_ACTION(action) action->generic_lmm_action
36 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
37
38 static xbt_dict_t parse_storage_content(char *filename, sg_storage_size_t *used_size);
39 static int storage_action_unref(surf_action_t action);
40 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state);
41 static surf_action_t storage_action_execute (void *storage, sg_storage_size_t size, e_surf_action_storage_type_t type);
42
43 static surf_action_t storage_action_ls(void *storage, const char* path)
44 {
45   surf_action_t action = storage_action_execute(storage,0, LS);
46   action->ls_dict = NULL;
47   xbt_dict_t ls_dict = xbt_dict_new_homogeneous(NULL);
48
49   char* key;
50   sg_storage_size_t size = 0;
51   xbt_dict_cursor_t cursor = NULL;
52
53   xbt_dynar_t dyn = NULL;
54   char* file = NULL;
55
56   // for each file in the storage content
57   xbt_dict_foreach(((storage_t)storage)->content,cursor,key,size){
58     // Search if file start with the prefix 'path'
59     if(xbt_str_start_with(key,path)){
60       file = &key[strlen(path)];
61
62       // Split file with '/'
63       dyn = xbt_str_split(file,"/");
64       file = xbt_dynar_get_as(dyn,0,char*);
65
66       // file
67       if(xbt_dynar_length(dyn) == 1){
68         xbt_dict_set(ls_dict,file,&size,NULL);
69       }
70       // Directory
71       else
72       {
73         // if directory does not exist yet in the dictionary
74         if(!xbt_dict_get_or_null(ls_dict,file))
75           xbt_dict_set(ls_dict,file,NULL,NULL);
76       }
77       xbt_dynar_free(&dyn);
78     }
79   }
80
81   action->ls_dict = ls_dict;
82   return action;
83 }
84
85 static surf_action_t storage_action_open(void *storage, const char* mount,
86                                          const char* path)
87 {
88   XBT_DEBUG("\tOpen file '%s'",path);
89   xbt_dict_t content_dict = ((storage_t)storage)->content;
90   sg_storage_size_t size = (sg_storage_size_t) xbt_dict_get_or_null(content_dict,path);
91
92   // if file does not exist create an empty file
93   if(!size){
94         size = 0;
95     xbt_dict_set(content_dict,path,&size,NULL);
96     XBT_DEBUG("File '%s' was not found, file created.",path);
97   }
98   surf_file_t file = xbt_new0(s_surf_file_t,1);
99   file->name = xbt_strdup(path);
100   file->size = size;
101   file->mount = xbt_strdup(mount);
102
103   surf_action_t action = storage_action_execute(storage,0, OPEN);
104   action->file = (void *)file;
105   return action;
106 }
107
108 static surf_action_t storage_action_close(void *storage, surf_file_t fd)
109 {
110   char *filename = fd->name;
111   XBT_DEBUG("\tClose file '%s' size '%" PRIu64 "'", filename, fd->size);
112   // unref write actions from storage
113   surf_action_storage_t write_action;
114   unsigned int i;
115   xbt_dynar_foreach(((storage_t)storage)->write_actions,i,write_action) {
116     if ((write_action->generic_lmm_action.generic_action.file) == fd) {
117       xbt_dynar_cursor_rm(((storage_t)storage)->write_actions, &i);
118       storage_action_unref((surf_action_t) write_action);
119     }
120   }
121   free(fd->name);
122   free(fd->mount);
123   xbt_free(fd);
124   surf_action_t action = storage_action_execute(storage,0, CLOSE);
125   return action;
126 }
127
128 static surf_action_t storage_action_read(void *storage, sg_storage_size_t size,
129                                          surf_file_t fd)
130 {
131   if(size > fd->size)
132     size = fd->size;
133   surf_action_t action = storage_action_execute(storage,size,READ);
134   return action;
135 }
136
137 static surf_action_t storage_action_write(void *storage, sg_storage_size_t size,
138                                           surf_file_t fd)
139 {
140   char *filename = fd->name;
141   XBT_DEBUG("\tWrite file '%s' size '%" PRIu64 "/%" PRIu64 "'",
142             filename, size, fd->size);
143
144   surf_action_t action = storage_action_execute(storage,size,WRITE);
145   action->file = fd;
146
147   // If the storage is full
148   if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
149     storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
150   }
151   return action;
152 }
153
154 static surf_action_t storage_action_execute (void *storage, sg_storage_size_t size, e_surf_action_storage_type_t type)
155 {
156   surf_action_storage_t action = NULL;
157   storage_t STORAGE = storage;
158
159   XBT_IN("(%s,%" PRIu64, surf_resource_name(STORAGE), size);
160   action =
161       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
162           STORAGE->state_current != SURF_RESOURCE_ON);
163
164   // Save the storage on action
165   action->storage = storage;
166   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
167                                                    calloc but it seems to help valgrind... */
168
169   GENERIC_LMM_ACTION(action).variable =
170       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
171
172   // Must be less than the max bandwidth for all actions
173   lmm_expand(storage_maxmin_system, STORAGE->constraint,
174              GENERIC_LMM_ACTION(action).variable, 1.0);
175
176   switch(type) {
177   case OPEN:
178   case CLOSE:
179   case STAT:
180   case LS:
181     break;
182   case READ:
183     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
184                GENERIC_LMM_ACTION(action).variable, 1.0);
185     break;
186   case WRITE:
187     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
188                GENERIC_LMM_ACTION(action).variable, 1.0);
189     xbt_dynar_push(((storage_t)storage)->write_actions,&action);
190     surf_action_ref((surf_action_t) action);
191     break;
192   }
193   action->type = type;
194   XBT_OUT();
195   return (surf_action_t) action;
196 }
197
198 static xbt_dict_t storage_get_properties(const void *storage)
199 {
200   return surf_resource_properties(surf_storage_resource_priv(storage));
201 }
202
203 static xbt_dict_t storage_get_content(void *storage)
204 {
205   /* For the moment this action has no cost, but in the future we could take in account access latency of the disk */
206   /*surf_action_t action = storage_action_execute(storage,0, LS);*/
207
208   void *st = surf_storage_resource_priv(storage);
209   xbt_dict_t content_dict = xbt_dict_new_homogeneous(NULL);
210   xbt_dict_cursor_t cursor = NULL;
211   char *file;
212   char *size;
213   xbt_dict_foreach(((storage_t)st)->content, cursor, file, size){
214     xbt_dict_set(content_dict,file,(void*)size,NULL);
215   }
216   return content_dict;
217 }
218
219 static void* storage_create_resource(const char* id, const char* model,
220     const char* type_id, const char* content_name, const char* content_type, xbt_dict_t properties){
221   storage_t storage = NULL;
222
223   xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
224               "Storage '%s' declared several times in the platform file",
225               id);
226   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
227           surf_storage_model, id, properties, NULL);
228
229   storage->state_current = SURF_RESOURCE_ON;
230   storage->used_size = 0;
231   storage->size = 0;
232   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
233
234   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
235   double Bread =
236       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bread"));
237   double Bwrite =
238       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bwrite"));
239   double Bconnection =
240       surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,
241                                             "Bconnection"));
242   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%lu'",Bconnection,Bread,Bwrite,(unsigned long)storage_type->size);
243   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
244   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
245   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
246   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
247   storage->content_type = xbt_strdup(content_type);
248   storage->size = storage_type->size;
249   storage->type_id = xbt_strdup(type_id);
250
251   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
252
253   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",
254       id,
255       model,
256       type_id,
257       storage_type->properties,
258       Bread);
259
260   if (!storage_list)
261     storage_list = xbt_dynar_new(sizeof(char *),NULL);
262   xbt_dynar_push(storage_list,&storage);
263
264   return storage;
265 }
266
267 static void storage_finalize(void)
268 {
269   lmm_system_free(storage_maxmin_system);
270   storage_maxmin_system = NULL;
271
272   surf_model_exit(surf_storage_model);
273   surf_storage_model = NULL;
274
275   xbt_dynar_free(&storage_list);
276
277   xbt_swag_free
278       (storage_running_action_set_that_does_not_need_being_checked);
279   storage_running_action_set_that_does_not_need_being_checked = NULL;
280 }
281
282 static void storage_update_actions_state(double now, double delta)
283 {
284   surf_action_storage_t action = NULL;
285   surf_action_storage_t next_action = NULL;
286   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
287
288
289   xbt_swag_foreach_safe(action, next_action, running_actions) {
290     if(action->type == WRITE)
291     {
292       // Update the disk usage
293       // Update the file size
294       // Update the storage content (with file size)
295       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
296       /* Hack to avoid rounding differences between x86 and x86_64
297        * (note that the next sizes are of type sg_storage_size_t). */
298       long incr = delta * rate + MAXMIN_PRECISION;
299       ((storage_t)(action->storage))->used_size += incr; // disk usage
300       ((surf_action_t)action)->file->size += incr; // file size
301
302       xbt_dict_t content_dict = ((storage_t)(action->storage))->content;
303       xbt_dict_set(content_dict,((surf_action_t)action)->file->name,(void*)(((surf_action_t)action)->file->size),NULL);
304     }
305
306     double_update(&(GENERIC_ACTION(action).remains),
307                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
308
309     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
310       double_update(&(GENERIC_ACTION(action).max_duration), delta);
311
312     if(GENERIC_ACTION(action).remains > 0 &&
313         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
314         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
315     {
316       GENERIC_ACTION(action).finish = surf_get_clock();
317       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
318     } else if ((GENERIC_ACTION(action).remains <= 0) &&
319         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
320     {
321       GENERIC_ACTION(action).finish = surf_get_clock();
322       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
323     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
324                (GENERIC_ACTION(action).max_duration <= 0))
325     {
326       GENERIC_ACTION(action).finish = surf_get_clock();
327       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
328     }
329   }
330
331   return;
332 }
333
334 static double storage_share_resources(double NOW)
335 {
336   XBT_DEBUG("storage_share_resources %f",NOW);
337   s_surf_action_storage_t action;
338   unsigned int i,j;
339   storage_t storage;
340   surf_action_storage_t write_action;
341
342   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
343       xbt_swag_offset(action, generic_lmm_action.variable),
344       storage_maxmin_system, lmm_solve);
345
346   double rate;
347   // Foreach disk
348   xbt_dynar_foreach(storage_list,i,storage)
349   {
350     rate = 0;
351     // Foreach write action on disk
352     xbt_dynar_foreach(storage->write_actions,j,write_action)
353     {
354       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
355     }
356     if(rate > 0)
357       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
358   }
359
360   return min_completion;
361 }
362
363 static int storage_resource_used(void *resource_id)
364 {
365   THROW_UNIMPLEMENTED;
366   return 0;
367 }
368
369 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
370                                  double value, double time)
371 {
372   THROW_UNIMPLEMENTED;
373 }
374
375 static int storage_action_unref(surf_action_t action)
376 {
377   action->refcount--;
378   if (!action->refcount) {
379     xbt_swag_remove(action, action->state_set);
380     if (((surf_action_lmm_t) action)->variable)
381       lmm_variable_free(storage_maxmin_system,
382                         ((surf_action_lmm_t) action)->variable);
383 #ifdef HAVE_TRACING
384     xbt_free(action->category);
385 #endif
386     surf_action_free(&action);
387     return 1;
388   }
389   return 0;
390 }
391
392 static void storage_action_cancel(surf_action_t action)
393 {
394   surf_action_state_set(action, SURF_ACTION_FAILED);
395   return;
396 }
397
398 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
399 {
400   surf_action_state_set(action, state);
401   return;
402 }
403
404 static void storage_action_suspend(surf_action_t action)
405 {
406   XBT_IN("(%p)", action);
407   if (((surf_action_lmm_t) action)->suspended != 2) {
408     lmm_update_variable_weight(storage_maxmin_system,
409                                ((surf_action_lmm_t) action)->variable,
410                                0.0);
411     ((surf_action_lmm_t) action)->suspended = 1;
412   }
413   XBT_OUT();
414 }
415
416 static void storage_action_resume(surf_action_t action)
417 {
418   THROW_UNIMPLEMENTED;
419 }
420
421 static int storage_action_is_suspended(surf_action_t action)
422 {
423   return (((surf_action_lmm_t) action)->suspended == 1);
424 }
425
426 static void storage_action_set_max_duration(surf_action_t action, double duration)
427 {
428   THROW_UNIMPLEMENTED;
429 }
430
431 static void storage_action_set_priority(surf_action_t action, double priority)
432 {
433   THROW_UNIMPLEMENTED;
434 }
435
436 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
437 {
438   void* stype = xbt_lib_get_or_null(storage_type_lib,
439                                     storage->type_id,
440                                     ROUTING_STORAGE_TYPE_LEVEL);
441   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
442
443   // if storage content is not specified use the content of storage_type if exist
444   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
445     storage->content = ((storage_type_t) stype)->content;
446     storage->content_type = ((storage_type_t) stype)->content_type;
447     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
448         storage->id,((storage_type_t) stype)->content_type,
449         ((storage_type_t) stype)->type_id);
450   }
451
452   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
453       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
454       "\n\t\tproperties '%p'\n",
455       storage->id,
456       ((storage_type_t) stype)->model,
457       ((storage_type_t) stype)->type_id,
458       storage->content,
459       storage->content_type,
460       ((storage_type_t) stype)->properties);
461
462   storage_create_resource(storage->id,
463      ((storage_type_t) stype)->model,
464      ((storage_type_t) stype)->type_id,
465      storage->content,
466      storage->content_type,
467      storage->properties);
468 }
469
470 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
471 {
472   XBT_DEBUG("parse_mstorage_init");
473 }
474
475 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
476 {
477   XBT_DEBUG("parse_storage_type_init");
478 }
479
480 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
481 {
482   XBT_DEBUG("parse_mount_init");
483 }
484
485 static void storage_define_callbacks()
486 {
487   sg_platf_storage_add_cb(parse_storage_init);
488   sg_platf_storage_type_add_cb(parse_storage_type_init);
489   sg_platf_mstorage_add_cb(parse_mstorage_init);
490   sg_platf_mount_add_cb(parse_mount_init);
491 }
492
493 static void surf_storage_model_init_internal(void)
494 {
495   s_surf_action_t action;
496
497   XBT_DEBUG("surf_storage_model_init_internal");
498   surf_storage_model = surf_model_init();
499
500   storage_running_action_set_that_does_not_need_being_checked =
501       xbt_swag_new(xbt_swag_offset(action, state_hookup));
502
503   surf_storage_model->name = "Storage";
504   surf_storage_model->action_unref = storage_action_unref;
505   surf_storage_model->action_cancel = storage_action_cancel;
506   surf_storage_model->action_state_set = storage_action_state_set;
507
508   surf_storage_model->model_private->finalize = storage_finalize;
509   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
510   surf_storage_model->model_private->share_resources = storage_share_resources;
511   surf_storage_model->model_private->resource_used = storage_resource_used;
512   surf_storage_model->model_private->update_resource_state = storage_resources_state;
513
514   surf_storage_model->suspend = storage_action_suspend;
515   surf_storage_model->resume = storage_action_resume;
516   surf_storage_model->is_suspended = storage_action_is_suspended;
517   surf_storage_model->set_max_duration = storage_action_set_max_duration;
518   surf_storage_model->set_priority = storage_action_set_priority;
519
520   surf_storage_model->extension.storage.open = storage_action_open;
521   surf_storage_model->extension.storage.close = storage_action_close;
522   surf_storage_model->extension.storage.read = storage_action_read;
523   surf_storage_model->extension.storage.write = storage_action_write;
524   surf_storage_model->extension.storage.ls = storage_action_ls;
525   surf_storage_model->extension.storage.get_properties = storage_get_properties;
526   surf_storage_model->extension.storage.get_content = storage_get_content;
527
528   if (!storage_maxmin_system) {
529     storage_maxmin_system = lmm_system_new(storage_selective_update);
530   }
531
532 }
533
534 void surf_storage_model_init_default(void)
535 {
536   surf_storage_model_init_internal();
537   storage_define_callbacks();
538
539   xbt_dynar_push(model_list, &surf_storage_model);
540 }
541
542 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
543 {
544   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
545                "Reading a storage, processing unit \"%s\" already exists", storage->id);
546
547   // Verification of an existing type_id
548 #ifndef NDEBUG
549   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
550 #endif
551   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
552
553   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
554       storage->id,
555       storage->type_id,
556       storage->content);
557
558   xbt_lib_set(storage_lib,
559       storage->id,
560       ROUTING_STORAGE_LEVEL,
561       (void *) xbt_strdup(storage->type_id));
562 }
563
564 static xbt_dict_t parse_storage_content(char *filename, sg_storage_size_t *used_size)
565 {
566   *used_size = 0;
567   if ((!filename) || (strcmp(filename, "") == 0))
568     return NULL;
569
570   xbt_dict_t parse_content = xbt_dict_new_homogeneous(NULL);
571   FILE *file = NULL;
572
573   file = surf_fopen(filename, "r");
574   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
575               xbt_str_join(surf_path, ":"));
576
577   char *line = NULL;
578   size_t len = 0;
579   ssize_t read;
580   char path[1024];
581   sg_storage_size_t size;
582
583   while ((read = xbt_getline(&line, &len, file)) != -1) {
584     if (read){
585     if (sscanf(line,"%s %" SCNu64, path, &size) == 2) {
586         *used_size += size;
587         xbt_dict_set(parse_content,path,(void*) size,NULL);
588       } else {
589         xbt_die("Be sure of passing a good format for content file.\n");
590       }
591     }
592   }
593   free(line);
594   fclose(file);
595   return parse_content;
596 }
597
598 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
599 {
600   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
601                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
602
603   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
604   stype->model = xbt_strdup(storage_type->model);
605   stype->properties = storage_type->properties;
606   stype->content = xbt_strdup(storage_type->content);
607   stype->content_type = xbt_strdup(storage_type->content_type);
608   stype->type_id = xbt_strdup(storage_type->id);
609   stype->size = storage_type->size;
610
611   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
612       "content '%s', and content_type '%s'",
613       stype->type_id,
614       stype->model,
615       storage_type->content,
616       storage_type->content_type);
617
618   xbt_lib_set(storage_type_lib,
619       stype->type_id,
620       ROUTING_STORAGE_TYPE_LEVEL,
621       (void *) stype);
622 }
623 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
624 {
625   THROW_UNIMPLEMENTED;
626 //  mount_t mnt = xbt_new0(s_mount_t, 1);
627 //  mnt->id = xbt_strdup(mstorage->type_id);
628 //  mnt->name = xbt_strdup(mstorage->name);
629 //
630 //  if(!mount_list){
631 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
632 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
633 //  }
634 //  xbt_dynar_push(mount_list,(void *) mnt);
635 //  free(mnt->id);
636 //  free(mnt->name);
637 //  xbt_free(mnt);
638 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
639 }
640
641 static void mount_free(void *p)
642 {
643   mount_t mnt = p;
644   xbt_free(mnt->name);
645 }
646
647 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
648 {
649   // Verification of an existing storage
650 #ifndef NDEBUG
651   void* storage = xbt_lib_get_or_null(storage_lib, mount->storageId,ROUTING_STORAGE_LEVEL);
652 #endif
653   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->storageId);
654
655   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
656
657   s_mount_t mnt;
658   mnt.storage =
659     surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
660   mnt.name = xbt_strdup(mount->name);
661
662   if(!mount_list){
663     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
664     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
665   }
666   xbt_dynar_push(mount_list,&mnt);
667 }
668
669 static XBT_INLINE void routing_storage_type_free(void *r)
670 {
671   storage_type_t stype = r;
672   free(stype->model);
673   free(stype->type_id);
674   free(stype->content);
675   free(stype->content_type);
676   xbt_dict_free(&(stype->properties));
677   free(stype);
678 }
679
680 static XBT_INLINE void surf_storage_resource_free(void *r)
681 {
682   // specific to storage
683   storage_t storage = r;
684   xbt_dict_free(&storage->content);
685   xbt_dynar_free(&storage->write_actions);
686   free(storage->type_id);
687   free(storage->content_type);
688   // generic resource
689   surf_resource_free(r);
690 }
691
692 static XBT_INLINE void routing_storage_host_free(void *r)
693 {
694   xbt_dynar_t dyn = r;
695   xbt_dynar_free(&dyn);
696 }
697
698 void storage_register_callbacks() {
699
700   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
701   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
702   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
703   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
704
705   sg_platf_storage_add_cb(storage_parse_storage);
706   sg_platf_mstorage_add_cb(storage_parse_mstorage);
707   sg_platf_storage_type_add_cb(storage_parse_storage_type);
708   sg_platf_mount_add_cb(storage_parse_mount);
709 }
710