Logo AND Algorithmique Numérique Distribuée

Public GIT Repository
5dd92c0c1e04c9a7ddf25c754976dd41872d4fc1
[simgrid.git] / src / surf / storage.c
1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012. 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 "xbt/file_stat.h"
10 #include "portable.h"
11 #include "surf_private.h"
12 #include "storage_private.h"
13 #include "surf/surf_resource.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, unsigned long *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, double size, e_surf_action_storage_type_t type);
42 static void free_storage_content(void *p);
43
44 static surf_action_t storage_action_stat(void *storage, surf_file_t stream)
45 {
46   surf_action_t action = storage_action_execute(storage,0, STAT);
47   action->file = stream;
48   action->stat = stream->content->stat;
49   return action;
50 }
51
52 static surf_action_t storage_action_ls(void *storage, const char* path)
53 {
54   surf_action_t action = storage_action_execute(storage,0, LS);
55   action->ls_dict = NULL;
56   xbt_dict_t ls_dict = xbt_dict_new();
57
58   char* key;
59   surf_stat_t data = NULL;
60   xbt_dict_cursor_t cursor = NULL;
61
62   xbt_dynar_t dyn = NULL;
63   char* file = NULL;
64
65   // foreach file int the storage
66   xbt_dict_foreach(((storage_t)storage)->content,cursor,key,data){
67     // Search if file start with the prefix 'path'
68     if(xbt_str_start_with(key,path)){
69       file = &key[strlen(path)];
70
71       // Split file with '/'
72       dyn = xbt_str_split(file,"/");
73       file = xbt_dynar_get_as(dyn,0,char*);
74
75       // file
76       if(xbt_dynar_length(dyn) == 1){
77         xbt_dict_set(ls_dict,file,&(data->stat),NULL);
78       }
79       // Directory
80       else
81       {
82         // if directory does not exist yet in dict
83         if(!xbt_dict_get_or_null(ls_dict,file))
84           xbt_dict_set(ls_dict,file,NULL,NULL);
85       }
86       xbt_dynar_free(&dyn);
87     }
88   }
89
90   action->ls_dict = ls_dict;
91   return action;
92 }
93
94 static surf_action_t storage_action_unlink(void *storage, surf_file_t stream)
95 {
96   surf_action_t action = storage_action_execute(storage,0, UNLINK);
97
98   // Add memory to storage
99   ((storage_t)storage)->used_size -= stream->content->stat.size;
100
101   // Remove the file from storage
102   xbt_dict_t content_dict = ((storage_t)storage)->content;
103   xbt_dict_remove(content_dict,stream->name);
104
105   free(stream->name);
106   stream->content = NULL;
107   xbt_free(stream);
108
109   return action;
110 }
111
112 static surf_action_t storage_action_open(void *storage, const char* mount, const char* path, const char* mode)
113 {
114   XBT_DEBUG("\tOpen file '%s'",path);
115   xbt_dict_t content_dict = ((storage_t)storage)->content;
116   surf_stat_t content = xbt_dict_get_or_null(content_dict,path);
117
118   // if file does not exist create an empty file
119   if(!content){
120     content = xbt_new0(s_surf_stat_t,1);
121     content->stat.date = xbt_strdup("");
122     content->stat.group = xbt_strdup("");
123     content->stat.size = 0;
124     content->stat.time = xbt_strdup("");
125     content->stat.user = xbt_strdup("");
126     content->stat.user_rights = xbt_strdup("");
127     xbt_dict_set(content_dict,path,content,NULL);
128     XBT_DEBUG("File '%s' was not found, file created.",path);
129   }
130   surf_file_t file = xbt_new0(s_surf_file_t,1);
131   file->name = xbt_strdup(path);
132   file->content = content;
133   file->storage = mount;
134
135   surf_action_t action = storage_action_execute(storage,0, OPEN);
136   action->file = (void *)file;
137   return action;
138 }
139
140 static surf_action_t storage_action_close(void *storage, surf_file_t fp)
141 {
142   char *filename = fp->name;
143   XBT_DEBUG("\tClose file '%s' size '%f'",filename,fp->content->stat.size);
144   // unref write actions from storage
145   surf_action_storage_t write_action;
146   unsigned int i;
147   xbt_dynar_foreach(((storage_t)storage)->write_actions,i,write_action) {
148     if ((write_action->generic_lmm_action.generic_action.file) == fp) {
149       xbt_dynar_cursor_rm(((storage_t)storage)->write_actions, &i);
150       storage_action_unref((surf_action_t) write_action);
151     }
152   }
153
154   free(fp->name);
155   fp->content = NULL;
156   xbt_free(fp);
157   surf_action_t action = storage_action_execute(storage,0, CLOSE);
158   return action;
159 }
160
161 static surf_action_t storage_action_read(void *storage, void* ptr, double size, size_t nmemb, surf_file_t stream)
162 {
163   surf_stat_t content = stream->content;
164   if(size > content->stat.size)
165     size = content->stat.size;
166   surf_action_t action = storage_action_execute(storage,size,READ);
167   return action;
168 }
169
170 static surf_action_t storage_action_write(void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
171 {
172   char *filename = stream->name;
173   surf_stat_t content = stream->content;
174   XBT_DEBUG("\tWrite file '%s' size '%zu/%f'",filename,size,content->stat.size);
175
176   surf_action_t action = storage_action_execute(storage,size,WRITE);
177   action->file = stream;
178
179   // If the storage is full
180   if(((storage_t)storage)->used_size==((storage_t)storage)->size) {
181     storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
182   }
183   return action;
184 }
185
186 static surf_action_t storage_action_execute (void *storage, double size, e_surf_action_storage_type_t type)
187 {
188   surf_action_storage_t action = NULL;
189   storage_t STORAGE = storage;
190
191   XBT_IN("(%s,%f)", surf_resource_name(STORAGE), size);
192   action =
193       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
194           STORAGE->state_current != SURF_RESOURCE_ON);
195
196   // Save the storage on action
197   action->storage = storage;
198   GENERIC_LMM_ACTION(action).suspended = 0;     /* Should be useless because of the
199                                                    calloc but it seems to help valgrind... */
200
201   GENERIC_LMM_ACTION(action).variable =
202       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
203
204   // Must be less than the max bandwidth for all actions
205   lmm_expand(storage_maxmin_system, STORAGE->constraint,
206              GENERIC_LMM_ACTION(action).variable, 1.0);
207
208   switch(type) {
209   case OPEN:
210   case CLOSE:
211   case STAT:
212   case UNLINK:
213   case LS:
214     break;
215   case READ:
216     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
217                GENERIC_LMM_ACTION(action).variable, 1.0);
218     break;
219   case WRITE:
220     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
221                GENERIC_LMM_ACTION(action).variable, 1.0);
222     xbt_dynar_push(((storage_t)storage)->write_actions,&action);
223     surf_action_ref((surf_action_t) action);
224     break;
225   }
226   action->type = type;
227   XBT_OUT();
228   return (surf_action_t) action;
229 }
230
231 static void* storage_create_resource(const char* id, const char* model,const char* type_id,const char* content_name)
232 {
233   storage_t storage = NULL;
234
235   xbt_assert(!surf_storage_resource_by_name(id),
236               "Storage '%s' declared several times in the platform file",
237               id);
238   storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
239           surf_storage_model, id,NULL);
240
241   storage->state_current = SURF_RESOURCE_ON;
242   storage->used_size = 0;
243   storage->size = 0;
244   storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
245
246   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
247   double Bread  = atof(xbt_dict_get(storage_type->properties,"Bread"));
248   double Bwrite = atof(xbt_dict_get(storage_type->properties,"Bwrite"));
249   double Bconnection   = atof(xbt_dict_get(storage_type->properties,"Bconnection"));
250   XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%ld'",Bconnection,Bread,Bwrite,storage_type->size);
251   storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
252   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
253   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
254   storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
255   storage->size = storage_type->size;
256
257   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
258
259   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",
260       id,
261       model,
262       type_id,
263       storage_type->properties,
264       Bread);
265
266   if(!storage_list) storage_list=xbt_dynar_new(sizeof(char *),NULL);
267   xbt_dynar_push(storage_list,&storage);
268
269   return storage;
270 }
271
272 static void storage_finalize(void)
273 {
274   lmm_system_free(storage_maxmin_system);
275   storage_maxmin_system = NULL;
276
277   surf_model_exit(surf_storage_model);
278   surf_storage_model = NULL;
279
280   if(storage_list)
281     xbt_dynar_free(&storage_list);
282
283   xbt_swag_free
284       (storage_running_action_set_that_does_not_need_being_checked);
285   storage_running_action_set_that_does_not_need_being_checked = NULL;
286 }
287
288 static void storage_update_actions_state(double now, double delta)
289 {
290   surf_action_storage_t action = NULL;
291   surf_action_storage_t next_action = NULL;
292   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
293
294   // Update the disk usage
295   // Update the file size
296   // Foreach action of type write
297   xbt_swag_foreach_safe(action, next_action, running_actions) {
298     if(action->type == WRITE)
299     {
300       double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
301       ((storage_t)(action->storage))->used_size += delta * rate; // disk usage
302       ((surf_action_t)action)->file->content->stat.size += delta * rate; // file size
303     }
304   }
305
306   xbt_swag_foreach_safe(action, next_action, running_actions) {
307
308     double_update(&(GENERIC_ACTION(action).remains),
309                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
310
311     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
312       double_update(&(GENERIC_ACTION(action).max_duration), delta);
313
314     if(GENERIC_ACTION(action).remains > 0 &&
315         lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
316         ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
317     {
318       GENERIC_ACTION(action).finish = surf_get_clock();
319       storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
320     } else if ((GENERIC_ACTION(action).remains <= 0) &&
321         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
322     {
323       GENERIC_ACTION(action).finish = surf_get_clock();
324       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
325     } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
326                (GENERIC_ACTION(action).max_duration <= 0))
327     {
328       GENERIC_ACTION(action).finish = surf_get_clock();
329       storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
330     }
331   }
332
333   return;
334 }
335
336 static double storage_share_resources(double NOW)
337 {
338   XBT_DEBUG("storage_share_resources %f",NOW);
339   s_surf_action_storage_t action;
340   unsigned int i,j;
341   storage_t storage;
342   surf_action_storage_t write_action;
343
344   double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
345       xbt_swag_offset(action, generic_lmm_action.variable),
346       storage_maxmin_system, lmm_solve);
347
348   double rate;
349   // Foreach disk
350   xbt_dynar_foreach(storage_list,i,storage)
351   {
352     rate = 0;
353     // Foreach write action on disk
354     xbt_dynar_foreach(storage->write_actions,j,write_action)
355     {
356       rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
357     }
358     if(rate > 0)
359       min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
360   }
361
362   return min_completion;
363 }
364
365 static int storage_resource_used(void *resource_id)
366 {
367   THROW_UNIMPLEMENTED;
368   return 0;
369 }
370
371 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
372                                  double value, double time)
373 {
374   THROW_UNIMPLEMENTED;
375 }
376
377 static int storage_action_unref(surf_action_t action)
378 {
379   action->refcount--;
380   if (!action->refcount) {
381     xbt_swag_remove(action, action->state_set);
382     if (((surf_action_lmm_t) action)->variable)
383       lmm_variable_free(storage_maxmin_system,
384                         ((surf_action_lmm_t) action)->variable);
385 #ifdef HAVE_TRACING
386     xbt_free(action->category);
387 #endif
388     surf_action_free(&action);
389     return 1;
390   }
391   return 0;
392 }
393
394 static void storage_action_cancel(surf_action_t action)
395 {
396   surf_action_state_set(action, SURF_ACTION_FAILED);
397   return;
398 }
399
400 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
401 {
402   surf_action_state_set(action, state);
403   return;
404 }
405
406 static void storage_action_suspend(surf_action_t action)
407 {
408   XBT_IN("(%p)", action);
409   if (((surf_action_lmm_t) action)->suspended != 2) {
410     lmm_update_variable_weight(storage_maxmin_system,
411                                ((surf_action_lmm_t) action)->variable,
412                                0.0);
413     ((surf_action_lmm_t) action)->suspended = 1;
414   }
415   XBT_OUT();
416 }
417
418 static void storage_action_resume(surf_action_t action)
419 {
420   THROW_UNIMPLEMENTED;
421 }
422
423 static int storage_action_is_suspended(surf_action_t action)
424 {
425   return (((surf_action_lmm_t) action)->suspended == 1);
426 }
427
428 static void storage_action_set_max_duration(surf_action_t action, double duration)
429 {
430   THROW_UNIMPLEMENTED;
431 }
432
433 static void storage_action_set_priority(surf_action_t action, double priority)
434 {
435   THROW_UNIMPLEMENTED;
436 }
437
438 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
439 {
440   void* stype = xbt_lib_get_or_null(storage_type_lib,
441                                     storage->type_id,
442                                     ROUTING_STORAGE_TYPE_LEVEL);
443   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
444
445   // if storage content is not specified use the content of storage_type if exist
446   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
447     storage->content = ((storage_type_t) stype)->content;
448     XBT_DEBUG("For disk '%s' content is empty, use the content of storage type '%s'",storage->id,((storage_type_t) stype)->type_id);
449   }
450
451   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' \n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tproperties '%p'\n",
452       storage->id,
453       ((storage_type_t) stype)->model,
454       ((storage_type_t) stype)->type_id,
455       storage->content,
456       ((storage_type_t) stype)->properties);
457
458   storage_create_resource(storage->id,
459      ((storage_type_t) stype)->model,
460      ((storage_type_t) stype)->type_id,
461      storage->content);
462 }
463
464 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
465 {
466   XBT_DEBUG("parse_mstorage_init");
467 }
468
469 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
470 {
471   XBT_DEBUG("parse_storage_type_init");
472 }
473
474 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
475 {
476   XBT_DEBUG("parse_mount_init");
477 }
478
479 static void storage_define_callbacks()
480 {
481   sg_platf_storage_add_cb(parse_storage_init);
482   sg_platf_storage_type_add_cb(parse_storage_type_init);
483   sg_platf_mstorage_add_cb(parse_mstorage_init);
484   sg_platf_mount_add_cb(parse_mount_init);
485 }
486
487 static void surf_storage_model_init_internal(void)
488 {
489   s_surf_action_t action;
490
491   XBT_DEBUG("surf_storage_model_init_internal");
492   surf_storage_model = surf_model_init();
493
494   storage_running_action_set_that_does_not_need_being_checked =
495       xbt_swag_new(xbt_swag_offset(action, state_hookup));
496
497   surf_storage_model->name = "Storage";
498   surf_storage_model->action_unref = storage_action_unref;
499   surf_storage_model->action_cancel = storage_action_cancel;
500   surf_storage_model->action_state_set = storage_action_state_set;
501
502   surf_storage_model->model_private->finalize = storage_finalize;
503   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
504   surf_storage_model->model_private->share_resources = storage_share_resources;
505   surf_storage_model->model_private->resource_used = storage_resource_used;
506   surf_storage_model->model_private->update_resource_state = storage_resources_state;
507
508   surf_storage_model->suspend = storage_action_suspend;
509   surf_storage_model->resume = storage_action_resume;
510   surf_storage_model->is_suspended = storage_action_is_suspended;
511   surf_storage_model->set_max_duration = storage_action_set_max_duration;
512   surf_storage_model->set_priority = storage_action_set_priority;
513
514   surf_storage_model->extension.storage.open = storage_action_open;
515   surf_storage_model->extension.storage.close = storage_action_close;
516   surf_storage_model->extension.storage.read = storage_action_read;
517   surf_storage_model->extension.storage.write = storage_action_write;
518   surf_storage_model->extension.storage.stat = storage_action_stat;
519   surf_storage_model->extension.storage.unlink = storage_action_unlink;
520   surf_storage_model->extension.storage.ls = storage_action_ls;
521   surf_storage_model->extension.storage.create_resource = storage_create_resource;
522
523   if (!storage_maxmin_system) {
524     storage_maxmin_system = lmm_system_new(storage_selective_update);
525   }
526
527 }
528
529 void surf_storage_model_init_default(void)
530 {
531   surf_storage_model_init_internal();
532   storage_define_callbacks();
533
534   xbt_dynar_push(model_list, &surf_storage_model);
535 }
536
537 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
538 {
539   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
540                "Reading a storage, processing unit \"%s\" already exists", storage->id);
541
542   // Verification of an existing type_id
543 #ifndef NDEBUG
544   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
545 #endif
546   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
547
548   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
549       storage->id,
550       storage->type_id,
551       storage->content);
552
553   xbt_lib_set(storage_lib,
554       storage->id,
555       ROUTING_STORAGE_LEVEL,
556       (void *) xbt_strdup(storage->type_id));
557 }
558
559 static void free_storage_content(void *p)
560 {
561   surf_stat_t content = p;
562   free(content->stat.date);
563   free(content->stat.group);
564   free(content->stat.time);
565   free(content->stat.user);
566   free(content->stat.user_rights);
567   free(content);
568 }
569
570 static xbt_dict_t parse_storage_content(char *filename, unsigned long *used_size)
571 {
572   *used_size = 0;
573   if ((!filename) || (strcmp(filename, "") == 0))
574     return NULL;
575
576   xbt_dict_t parse_content = xbt_dict_new_homogeneous(free_storage_content);
577   FILE *file = NULL;
578
579   file = surf_fopen(filename, "r");
580   xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
581               xbt_str_join(surf_path, ":"));
582
583   char *line = NULL;
584   size_t len = 0;
585   ssize_t read;
586   char user_rights[12];
587   char user[100];
588   char group[100];
589   char date[12];
590   char time[12];
591   char path[1024];
592   int nb;
593   unsigned long size;
594
595   surf_stat_t content;
596
597   while ((read = getline(&line, &len, file)) != -1) {
598     content = xbt_new0(s_surf_stat_t,1);
599     if(sscanf(line,"%s %d %s %s %ld %s %s %s",user_rights,&nb,user,group,&size,date,time,path)==8) {
600       content->stat.date = xbt_strdup(date);
601       content->stat.group = xbt_strdup(group);
602       content->stat.size = size;
603       content->stat.time = xbt_strdup(time);
604       content->stat.user = xbt_strdup(user);
605       content->stat.user_rights = xbt_strdup(user_rights);
606       *used_size += content->stat.size;
607       xbt_dict_set(parse_content,path,content,NULL);
608     } else {
609       xbt_die("Be sure of passing a good format for content file.\n");
610       // You can generate this kind of file with command line:
611       // find /path/you/want -type f -exec ls -l {} \; 2>/dev/null > ./content.txt
612     }
613   }
614   if (line)
615       free(line);
616   fclose(file);
617   return parse_content;
618 }
619
620 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
621 {
622   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
623                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
624
625   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
626   stype->model = xbt_strdup(storage_type->model);
627   stype->properties = storage_type->properties;
628   stype->content = xbt_strdup(storage_type->content);
629   stype->type_id = xbt_strdup(storage_type->id);
630   stype->size = storage_type->size * 1000000000; /* storage_type->size is in Gbytes and stype->sizeis in bytes */
631
632   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s' content '%s'",
633       stype->type_id,
634       stype->model,
635       storage_type->content);
636
637   xbt_lib_set(storage_type_lib,
638       stype->type_id,
639       ROUTING_STORAGE_TYPE_LEVEL,
640       (void *) stype);
641 }
642 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
643 {
644   THROW_UNIMPLEMENTED;
645 //  mount_t mnt = xbt_new0(s_mount_t, 1);
646 //  mnt->id = xbt_strdup(mstorage->type_id);
647 //  mnt->name = xbt_strdup(mstorage->name);
648 //
649 //  if(!mount_list){
650 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
651 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
652 //  }
653 //  xbt_dynar_push(mount_list,(void *) mnt);
654 //  free(mnt->id);
655 //  free(mnt->name);
656 //  xbt_free(mnt);
657 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
658 }
659
660 static void mount_free(void *p)
661 {
662   mount_t mnt = p;
663   xbt_free(mnt->name);
664 }
665
666 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
667 {
668   // Verification of an existing storage
669 #ifndef NDEBUG
670   void* storage = xbt_lib_get_or_null(storage_lib, mount->id,ROUTING_STORAGE_LEVEL);
671 #endif
672   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->id);
673
674   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->id, mount->name);
675
676   s_mount_t mnt;
677   mnt.id = surf_storage_resource_by_name(mount->id);
678   mnt.name = xbt_strdup(mount->name);
679
680   if(!mount_list){
681     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
682     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
683   }
684   xbt_dynar_push(mount_list,&mnt);
685 }
686
687 static XBT_INLINE void routing_storage_type_free(void *r)
688 {
689   storage_type_t stype = r;
690   free(stype->model);
691   free(stype->type_id);
692   free(stype->content);
693   xbt_dict_free(&(stype->properties));
694   free(stype);
695 }
696
697 static XBT_INLINE void surf_storage_resource_free(void *r)
698 {
699   // specific to storage
700   storage_t storage = r;
701   xbt_dict_free(&storage->content);
702   xbt_dynar_free(&storage->write_actions);
703   // generic resource
704   surf_resource_free(r);
705 }
706
707 static XBT_INLINE void routing_storage_host_free(void *r)
708 {
709   xbt_dynar_t dyn = r;
710   xbt_dynar_free(&dyn);
711 }
712
713 void storage_register_callbacks() {
714
715   ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
716   ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
717   ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
718   SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
719
720   sg_platf_storage_add_cb(storage_parse_storage);
721   sg_platf_mstorage_add_cb(storage_parse_mstorage);
722   sg_platf_storage_type_add_cb(storage_parse_storage_type);
723   sg_platf_mount_add_cb(storage_parse_mount);
724 }