1 /* Copyright (c) 2013-2015. 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. */
7 #include "storage_n11.hpp"
8 #include "surf_private.h"
9 #include <math.h> /*ceil*/
10 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_storage);
12 static int storage_selective_update = 0;
13 static xbt_swag_t storage_running_action_set_that_does_not_need_being_checked = NULL;
19 static XBT_INLINE void routing_storage_type_free(void *r)
21 storage_type_t stype = (storage_type_t) r;
25 free(stype->content_type);
26 xbt_dict_free(&(stype->properties));
27 xbt_dict_free(&(stype->model_properties));
31 static XBT_INLINE void surf_storage_resource_free(void *r)
33 // specific to storage
34 simgrid::surf::Storage *storage = static_cast<simgrid::surf::Storage*>(r);
39 static XBT_INLINE void routing_storage_host_free(void *r)
41 xbt_dynar_t dyn = (xbt_dynar_t) r;
45 void storage_register_callbacks()
47 ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, xbt_free_f);
48 ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib, routing_storage_host_free);
49 ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib, routing_storage_type_free);
50 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, surf_storage_resource_free);
57 void surf_storage_model_init_default(void)
59 surf_storage_model = new simgrid::surf::StorageN11Model();
60 xbt_dynar_push(all_existing_models, &surf_storage_model);
66 StorageN11Model::StorageN11Model() : StorageModel() {
67 Action *action = NULL;
69 XBT_DEBUG("surf_storage_model_init_internal");
71 storage_running_action_set_that_does_not_need_being_checked =
72 xbt_swag_new(xbt_swag_offset(*action, p_stateHookup));
73 if (!p_maxminSystem) {
74 p_maxminSystem = lmm_system_new(storage_selective_update);
78 StorageN11Model::~StorageN11Model(){
79 xbt_swag_free(storage_running_action_set_that_does_not_need_being_checked);
80 storage_running_action_set_that_does_not_need_being_checked = NULL;
83 Storage *StorageN11Model::createStorage(const char* id, const char* type_id,
84 const char* content_name, const char* content_type, xbt_dict_t properties,
88 xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
89 "Storage '%s' declared several times in the platform file",
92 storage_type_t storage_type = (storage_type_t) xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
94 double Bread = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bread"),
95 "property Bread, storage",type_id);
96 double Bwrite = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bwrite"),
97 "property Bwrite, storage",type_id);
98 double Bconnection = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bconnection"),
99 "property Bconnection, storage",type_id);
101 Storage *storage = new StorageN11(this, id, properties, p_maxminSystem,
102 Bread, Bwrite, Bconnection, type_id, (char *)content_name,
103 xbt_strdup(content_type), storage_type->size, (char *) attach);
104 storageCreatedCallbacks(storage);
105 xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
107 XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tproperties '%p'\n\t\tBread '%f'\n",
114 p_storageList = xbt_dynar_new(sizeof(char *),NULL);
115 xbt_dynar_push(p_storageList, &storage);
120 double StorageN11Model::next_occuring_event(double /*now*/)
122 XBT_DEBUG("storage_share_resources");
126 StorageAction *write_action;
128 double min_completion = shareResourcesMaxMin(getRunningActionSet(),
129 p_maxminSystem, lmm_solve);
133 xbt_dynar_foreach(p_storageList,i,storage)
136 // Foreach write action on disk
137 xbt_dynar_foreach(storage->p_writeActions, j, _write_action)
139 write_action = static_cast<StorageAction*>(_write_action);
140 rate += lmm_variable_getvalue(write_action->getVariable());
143 min_completion = MIN(min_completion, (storage->m_size-storage->m_usedSize)/rate);
146 return min_completion;
149 void StorageN11Model::updateActionsState(double /*now*/, double delta)
151 StorageAction *action = NULL;
153 ActionList *actionSet = getRunningActionSet();
154 for(ActionList::iterator it(actionSet->begin()), itNext=it, itend(actionSet->end())
155 ; it != itend ; it=itNext) {
157 action = static_cast<StorageAction*>(&*it);
159 if(action->m_type == WRITE)
161 // Update the disk usage
162 // Update the file size
163 // For each action of type write
164 volatile double current_progress =
165 delta * lmm_variable_getvalue(action->getVariable());
166 long int incr = current_progress;
168 XBT_DEBUG("%s:\n\t progress = %.2f, current_progress = %.2f, "
169 "incr = %ld, lrint(1) = %ld, lrint(2) = %ld",
170 action->p_file->name,
171 action->progress, current_progress, incr,
172 lrint(action->progress + current_progress),
173 lrint(action->progress)+ incr);
175 /* take care of rounding error accumulation */
176 if (lrint(action->progress + current_progress) >
177 lrint(action->progress)+ incr)
180 action->progress +=current_progress;
182 action->p_storage->m_usedSize += incr; // disk usage
183 action->p_file->current_position+= incr; // current_position
184 // which becomes the new file size
185 action->p_file->size = action->p_file->current_position ;
187 sg_size_t *psize = xbt_new(sg_size_t,1);
188 *psize = action->p_file->size;
189 xbt_dict_t content_dict = action->p_storage->p_content;
190 xbt_dict_set(content_dict, action->p_file->name, psize, NULL);
193 action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
195 if (action->getMaxDuration() != NO_MAX_DURATION)
196 action->updateMaxDuration(delta);
198 if(action->getRemainsNoUpdate() > 0 &&
199 lmm_get_variable_weight(action->getVariable()) > 0 &&
200 action->p_storage->m_usedSize == action->p_storage->m_size)
203 action->setState(SURF_ACTION_FAILED);
204 } else if ((action->getRemainsNoUpdate() <= 0) &&
205 (lmm_get_variable_weight(action->getVariable()) > 0))
208 action->setState(SURF_ACTION_DONE);
209 } else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
210 (action->getMaxDuration() <= 0))
213 action->setState(SURF_ACTION_DONE);
223 StorageN11::StorageN11(StorageModel *model, const char* name,
224 xbt_dict_t properties, lmm_system_t maxminSystem, double bread,
225 double bwrite, double bconnection, const char* type_id, char *content_name,
226 char *content_type, sg_size_t size, char *attach)
227 : Storage(model, name, properties,
228 maxminSystem, bread, bwrite, bconnection, type_id, content_name, content_type, size, attach) {
229 XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%llu'", bconnection, bread, bwrite, size);
232 StorageAction *StorageN11::open(const char* mount, const char* path)
234 XBT_DEBUG("\tOpen file '%s'",path);
236 sg_size_t size, *psize;
237 psize = (sg_size_t*) xbt_dict_get_or_null(p_content, path);
238 // if file does not exist create an empty file
242 psize = xbt_new(sg_size_t,1);
245 xbt_dict_set(p_content, path, psize, NULL);
246 XBT_DEBUG("File '%s' was not found, file created.",path);
248 surf_file_t file = xbt_new0(s_surf_file_t,1);
249 file->name = xbt_strdup(path);
251 file->mount = xbt_strdup(mount);
252 file->current_position = 0;
254 StorageAction *action = new StorageN11Action(getModel(), 0, isOff(), this, OPEN);
255 action->p_file = file;
260 StorageAction *StorageN11::close(surf_file_t fd)
262 char *filename = fd->name;
263 XBT_DEBUG("\tClose file '%s' size '%llu'", filename, fd->size);
264 // unref write actions from storage
266 StorageAction *write_action;
268 xbt_dynar_foreach(p_writeActions, i, _write_action) {
269 write_action = static_cast<StorageAction*>(_write_action);
270 if ((write_action->p_file) == fd) {
271 xbt_dynar_cursor_rm(p_writeActions, &i);
272 write_action->unref();
278 StorageAction *action = new StorageN11Action(getModel(), 0, isOff(), this, CLOSE);
282 StorageAction *StorageN11::read(surf_file_t fd, sg_size_t size)
284 if(fd->current_position + size > fd->size){
285 if (fd->current_position > fd->size){
288 size = fd->size - fd->current_position;
290 fd->current_position = fd->size;
293 fd->current_position += size;
295 StorageAction *action = new StorageN11Action(getModel(), size, isOff(), this, READ);
299 StorageAction *StorageN11::write(surf_file_t fd, sg_size_t size)
301 char *filename = fd->name;
302 XBT_DEBUG("\tWrite file '%s' size '%llu/%llu'",filename,size,fd->size);
304 StorageAction *action = new StorageN11Action(getModel(), size, isOff(), this, WRITE);
306 /* Substract the part of the file that might disappear from the used sized on
307 * the storage element */
308 m_usedSize -= (fd->size - fd->current_position);
309 // If the storage is full before even starting to write
310 if(m_usedSize==m_size) {
311 action->setState(SURF_ACTION_FAILED);
320 StorageN11Action::StorageN11Action(Model *model, double cost, bool failed, Storage *storage, e_surf_action_storage_type_t type)
321 : StorageAction(model, cost, failed,
322 lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0 , 3),
324 XBT_IN("(%s,%g", storage->getName(), cost);
326 // Must be less than the max bandwidth for all actions
327 lmm_expand(model->getMaxminSystem(), storage->getConstraint(), getVariable(), 1.0);
334 lmm_expand(model->getMaxminSystem(), storage->p_constraintRead,
338 lmm_expand(model->getMaxminSystem(), storage->p_constraintWrite,
341 //TODO there is something annoying with what's below. Have to sort it out...
342 // Action *action = this;
343 // xbt_dynar_push(storage->p_writeActions, &action);
350 int StorageN11Action::unref()
354 if (action_hook.is_linked())
355 p_stateSet->erase(p_stateSet->iterator_to(*this));
357 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
358 xbt_free(getCategory());
365 void StorageN11Action::cancel()
367 setState(SURF_ACTION_FAILED);
371 void StorageN11Action::suspend()
373 XBT_IN("(%p)", this);
374 if (m_suspended != 2) {
375 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
381 void StorageN11Action::resume()
386 bool StorageN11Action::isSuspended()
388 return m_suspended == 1;
391 void StorageN11Action::setMaxDuration(double /*duration*/)
396 void StorageN11Action::setPriority(double /*priority*/)