1 /* Copyright (c) 2004 - 2013. The SimGrid Team.
2 * All rights reserved. */
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. */
10 #include "surf_private.h"
11 #include "storage_private.h"
12 #include "surf/surf_resource.h"
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf,
15 "Logging specific to the SURF storage module");
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
24 xbt_dynar_t mount_list = NULL; /* temporary store of current mount storage */
26 surf_model_t surf_storage_model = NULL;
27 lmm_system_t storage_maxmin_system = NULL;
28 static int storage_selective_update = 0;
30 storage_running_action_set_that_does_not_need_being_checked = NULL;
32 static xbt_dynar_t storage_list;
34 #define GENERIC_LMM_ACTION(action) action->generic_lmm_action
35 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
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);
42 static surf_action_t storage_action_ls(void *storage, const char* path)
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();
50 xbt_dict_cursor_t cursor = NULL;
52 xbt_dynar_t dyn = NULL;
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)];
61 // Split file with '/'
62 dyn = xbt_str_split(file,"/");
63 file = xbt_dynar_get_as(dyn,0,char*);
66 if(xbt_dynar_length(dyn) == 1){
67 xbt_dict_set(ls_dict,file,&size,NULL);
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);
80 action->ls_dict = ls_dict;
84 static surf_action_t storage_action_open(void *storage, const char* mount,
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
92 xbt_dict_set(content_dict,path,&size,NULL);
93 XBT_DEBUG("File '%s' was not found, file created.",path);
95 surf_file_t file = xbt_new0(s_surf_file_t,1);
96 file->name = xbt_strdup(path);
98 file->mount = xbt_strdup(mount);
100 surf_action_t action = storage_action_execute(storage,0, OPEN);
101 action->file = (void *)file;
105 static surf_action_t storage_action_close(void *storage, surf_file_t fd)
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;
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);
122 surf_action_t action = storage_action_execute(storage,0, CLOSE);
126 static surf_action_t storage_action_read(void *storage, size_t size,
131 surf_action_t action = storage_action_execute(storage,size,READ);
135 static surf_action_t storage_action_write(void *storage, size_t size,
138 char *filename = fd->name;
139 XBT_DEBUG("\tWrite file '%s' size '%zu/%zu'",filename,size,fd->size);
141 surf_action_t action = storage_action_execute(storage,size,WRITE);
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);
151 static surf_action_t storage_action_execute (void *storage, size_t size, e_surf_action_storage_type_t type)
153 surf_action_storage_t action = NULL;
154 storage_t STORAGE = storage;
156 XBT_IN("(%s,%zu", surf_resource_name(STORAGE), size);
158 surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
159 STORAGE->state_current != SURF_RESOURCE_ON);
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... */
166 GENERIC_LMM_ACTION(action).variable =
167 lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
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);
180 lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
181 GENERIC_LMM_ACTION(action).variable, 1.0);
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);
192 return (surf_action_t) action;
195 static void* storage_create_resource(const char* id, const char* model,const char* type_id,const char* content_name)
197 storage_t storage = NULL;
199 xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
200 "Storage '%s' declared several times in the platform file",
202 storage = (storage_t) surf_resource_new(sizeof(s_storage_t),
203 surf_storage_model, id,NULL);
205 storage->state_current = SURF_RESOURCE_ON;
206 storage->used_size = 0;
208 storage->write_actions = xbt_dynar_new(sizeof(char *),NULL);
210 storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
212 surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bread"));
214 surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,"Bwrite"));
216 surf_parse_get_bandwidth(xbt_dict_get(storage_type->properties,
218 XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%lu'",Bconnection,Bread,Bwrite,(unsigned long)storage_type->size);
219 storage->constraint = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
220 storage->constraint_read = lmm_constraint_new(storage_maxmin_system, storage, Bread);
221 storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
222 storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
223 storage->size = storage_type->size;
225 xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
227 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",
231 storage_type->properties,
234 if(!storage_list) storage_list=xbt_dynar_new(sizeof(char *),NULL);
235 xbt_dynar_push(storage_list,&storage);
240 static void storage_finalize(void)
242 lmm_system_free(storage_maxmin_system);
243 storage_maxmin_system = NULL;
245 surf_model_exit(surf_storage_model);
246 surf_storage_model = NULL;
248 xbt_dynar_free(&storage_list);
251 (storage_running_action_set_that_does_not_need_being_checked);
252 storage_running_action_set_that_does_not_need_being_checked = NULL;
255 static void storage_update_actions_state(double now, double delta)
257 surf_action_storage_t action = NULL;
258 surf_action_storage_t next_action = NULL;
259 xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
261 // Update the disk usage
262 // Update the file size
263 // For each action of type write
264 xbt_swag_foreach_safe(action, next_action, running_actions) {
265 if(action->type == WRITE)
267 double rate = lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable);
268 /* Hack to avoid rounding differences between x86 and x86_64
269 * (note that the next sizes are of type size_t). */
270 long incr = delta * rate + MAXMIN_PRECISION;
271 ((storage_t)(action->storage))->used_size += incr; // disk usage
272 ((surf_action_t)action)->file->size += incr; // file size
276 xbt_swag_foreach_safe(action, next_action, running_actions) {
278 double_update(&(GENERIC_ACTION(action).remains),
279 lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
281 if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
282 double_update(&(GENERIC_ACTION(action).max_duration), delta);
284 if(GENERIC_ACTION(action).remains > 0 &&
285 lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0 &&
286 ((storage_t)action->storage)->used_size == ((storage_t)action->storage)->size)
288 GENERIC_ACTION(action).finish = surf_get_clock();
289 storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
290 } else if ((GENERIC_ACTION(action).remains <= 0) &&
291 (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0))
293 GENERIC_ACTION(action).finish = surf_get_clock();
294 storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
295 } else if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) &&
296 (GENERIC_ACTION(action).max_duration <= 0))
298 GENERIC_ACTION(action).finish = surf_get_clock();
299 storage_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
306 static double storage_share_resources(double NOW)
308 XBT_DEBUG("storage_share_resources %f",NOW);
309 s_surf_action_storage_t action;
312 surf_action_storage_t write_action;
314 double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
315 xbt_swag_offset(action, generic_lmm_action.variable),
316 storage_maxmin_system, lmm_solve);
320 xbt_dynar_foreach(storage_list,i,storage)
323 // Foreach write action on disk
324 xbt_dynar_foreach(storage->write_actions,j,write_action)
326 rate += lmm_variable_getvalue(write_action->generic_lmm_action.variable);
329 min_completion = MIN(min_completion, (storage->size-storage->used_size)/rate);
332 return min_completion;
335 static int storage_resource_used(void *resource_id)
341 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
342 double value, double time)
347 static int storage_action_unref(surf_action_t action)
350 if (!action->refcount) {
351 xbt_swag_remove(action, action->state_set);
352 if (((surf_action_lmm_t) action)->variable)
353 lmm_variable_free(storage_maxmin_system,
354 ((surf_action_lmm_t) action)->variable);
356 xbt_free(action->category);
358 surf_action_free(&action);
364 static void storage_action_cancel(surf_action_t action)
366 surf_action_state_set(action, SURF_ACTION_FAILED);
370 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
372 surf_action_state_set(action, state);
376 static void storage_action_suspend(surf_action_t action)
378 XBT_IN("(%p)", action);
379 if (((surf_action_lmm_t) action)->suspended != 2) {
380 lmm_update_variable_weight(storage_maxmin_system,
381 ((surf_action_lmm_t) action)->variable,
383 ((surf_action_lmm_t) action)->suspended = 1;
388 static void storage_action_resume(surf_action_t action)
393 static int storage_action_is_suspended(surf_action_t action)
395 return (((surf_action_lmm_t) action)->suspended == 1);
398 static void storage_action_set_max_duration(surf_action_t action, double duration)
403 static void storage_action_set_priority(surf_action_t action, double priority)
408 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
410 void* stype = xbt_lib_get_or_null(storage_type_lib,
412 ROUTING_STORAGE_TYPE_LEVEL);
413 if(!stype) xbt_die("No storage type '%s'",storage->type_id);
415 // if storage content is not specified use the content of storage_type if exist
416 if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
417 storage->content = ((storage_type_t) stype)->content;
418 XBT_DEBUG("For disk '%s' content is empty, use the content of storage type '%s'",storage->id,((storage_type_t) stype)->type_id);
421 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",
423 ((storage_type_t) stype)->model,
424 ((storage_type_t) stype)->type_id,
426 ((storage_type_t) stype)->properties);
428 storage_create_resource(storage->id,
429 ((storage_type_t) stype)->model,
430 ((storage_type_t) stype)->type_id,
434 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
436 XBT_DEBUG("parse_mstorage_init");
439 static void parse_storage_type_init(sg_platf_storage_type_cbarg_t storagetype_)
441 XBT_DEBUG("parse_storage_type_init");
444 static void parse_mount_init(sg_platf_mount_cbarg_t mount)
446 XBT_DEBUG("parse_mount_init");
449 static void storage_define_callbacks()
451 sg_platf_storage_add_cb(parse_storage_init);
452 sg_platf_storage_type_add_cb(parse_storage_type_init);
453 sg_platf_mstorage_add_cb(parse_mstorage_init);
454 sg_platf_mount_add_cb(parse_mount_init);
457 static void surf_storage_model_init_internal(void)
459 s_surf_action_t action;
461 XBT_DEBUG("surf_storage_model_init_internal");
462 surf_storage_model = surf_model_init();
464 storage_running_action_set_that_does_not_need_being_checked =
465 xbt_swag_new(xbt_swag_offset(action, state_hookup));
467 surf_storage_model->name = "Storage";
468 surf_storage_model->action_unref = storage_action_unref;
469 surf_storage_model->action_cancel = storage_action_cancel;
470 surf_storage_model->action_state_set = storage_action_state_set;
472 surf_storage_model->model_private->finalize = storage_finalize;
473 surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
474 surf_storage_model->model_private->share_resources = storage_share_resources;
475 surf_storage_model->model_private->resource_used = storage_resource_used;
476 surf_storage_model->model_private->update_resource_state = storage_resources_state;
478 surf_storage_model->suspend = storage_action_suspend;
479 surf_storage_model->resume = storage_action_resume;
480 surf_storage_model->is_suspended = storage_action_is_suspended;
481 surf_storage_model->set_max_duration = storage_action_set_max_duration;
482 surf_storage_model->set_priority = storage_action_set_priority;
484 surf_storage_model->extension.storage.open = storage_action_open;
485 surf_storage_model->extension.storage.close = storage_action_close;
486 surf_storage_model->extension.storage.read = storage_action_read;
487 surf_storage_model->extension.storage.write = storage_action_write;
488 surf_storage_model->extension.storage.ls = storage_action_ls;
490 if (!storage_maxmin_system) {
491 storage_maxmin_system = lmm_system_new(storage_selective_update);
496 void surf_storage_model_init_default(void)
498 surf_storage_model_init_internal();
499 storage_define_callbacks();
501 xbt_dynar_push(model_list, &surf_storage_model);
504 static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
506 xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
507 "Reading a storage, processing unit \"%s\" already exists", storage->id);
509 // Verification of an existing type_id
511 void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
513 xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
515 XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
520 xbt_lib_set(storage_lib,
522 ROUTING_STORAGE_LEVEL,
523 (void *) xbt_strdup(storage->type_id));
526 static xbt_dict_t parse_storage_content(char *filename, size_t *used_size)
529 if ((!filename) || (strcmp(filename, "") == 0))
532 xbt_dict_t parse_content = xbt_dict_new_homogeneous(NULL);
535 file = surf_fopen(filename, "r");
536 xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
537 xbt_str_join(surf_path, ":"));
546 while ((read = xbt_getline(&line, &len, file)) != -1) {
548 if(sscanf(line,"%s %zu",path, &size)==2) {
550 xbt_dict_set(parse_content,path,(void*) size,NULL);
552 xbt_die("Be sure of passing a good format for content file.\n");
558 return parse_content;
561 static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
563 xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
564 "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
566 storage_type_t stype = xbt_new0(s_storage_type_t, 1);
567 stype->model = xbt_strdup(storage_type->model);
568 stype->properties = storage_type->properties;
569 stype->content = xbt_strdup(storage_type->content);
570 stype->type_id = xbt_strdup(storage_type->id);
571 stype->size = storage_type->size;
573 XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s' content '%s'",
576 storage_type->content);
578 xbt_lib_set(storage_type_lib,
580 ROUTING_STORAGE_TYPE_LEVEL,
583 static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
586 // mount_t mnt = xbt_new0(s_mount_t, 1);
587 // mnt->id = xbt_strdup(mstorage->type_id);
588 // mnt->name = xbt_strdup(mstorage->name);
591 // XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
592 // mount_list = xbt_dynar_new(sizeof(char *), NULL);
594 // xbt_dynar_push(mount_list,(void *) mnt);
598 // XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
601 static void mount_free(void *p)
607 static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
609 // Verification of an existing storage
611 void* storage = xbt_lib_get_or_null(storage_lib, mount->id,ROUTING_STORAGE_LEVEL);
613 xbt_assert(storage,"Disk id \"%s\" does not exists", mount->id);
615 XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->id, mount->name);
618 mnt.id = surf_storage_resource_priv(surf_storage_resource_by_name(mount->id));
619 mnt.name = xbt_strdup(mount->name);
622 XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
623 mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
625 xbt_dynar_push(mount_list,&mnt);
628 static XBT_INLINE void routing_storage_type_free(void *r)
630 storage_type_t stype = r;
632 free(stype->type_id);
633 free(stype->content);
634 xbt_dict_free(&(stype->properties));
638 static XBT_INLINE void surf_storage_resource_free(void *r)
640 // specific to storage
641 storage_t storage = r;
642 xbt_dict_free(&storage->content);
643 xbt_dynar_free(&storage->write_actions);
645 surf_resource_free(r);
648 static XBT_INLINE void routing_storage_host_free(void *r)
651 xbt_dynar_free(&dyn);
654 void storage_register_callbacks() {
656 ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
657 ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
658 ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
659 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
661 sg_platf_storage_add_cb(storage_parse_storage);
662 sg_platf_mstorage_add_cb(storage_parse_mstorage);
663 sg_platf_storage_type_add_cb(storage_parse_storage_type);
664 sg_platf_mount_add_cb(storage_parse_mount);