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[simgrid.git] / src / surf / storage_n11.cpp
1 /* Copyright (c) 2013-2017. The SimGrid Team. All rights reserved.          */
2
3 /* This program is free software; you can redistribute it and/or modify it
4  * under the terms of the license (GNU LGPL) which comes with this package. */
5
6 #include "storage_n11.hpp"
7 #include "simgrid/s4u/Engine.hpp"
8 #include "src/kernel/routing/NetPoint.hpp"
9 #include <cmath> /*ceil*/
10
11 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_storage);
12
13 /*************
14  * CallBacks *
15  *************/
16 extern std::map<std::string, simgrid::surf::StorageType*> storage_types;
17
18 static void check_disk_attachment()
19 {
20   for (auto const& s : *simgrid::surf::StorageImpl::storagesMap()) {
21     simgrid::kernel::routing::NetPoint* host_elm = sg_netpoint_by_name_or_null(s.second->getHost().c_str());
22     if (not host_elm)
23       surf_parse_error(std::string("Unable to attach storage ") + s.second->getCname() + ": host " +
24                        s.second->getHost() + " does not exist.");
25     else
26       s.second->piface_.attached_to_ = sg_host_by_name(s.second->getHost().c_str());
27   }
28 }
29
30 void storage_register_callbacks()
31 {
32   simgrid::s4u::onPlatformCreated.connect(check_disk_attachment);
33   instr_routing_define_callbacks();
34 }
35
36 /*********
37  * Model *
38  *********/
39
40 void surf_storage_model_init_default()
41 {
42   surf_storage_model = new simgrid::surf::StorageN11Model();
43   all_existing_models->push_back(surf_storage_model);
44 }
45
46 namespace simgrid {
47 namespace surf {
48
49 StorageImpl* StorageN11Model::createStorage(std::string id, std::string type_id, std::string content_name,
50                                             std::string attach)
51 {
52   StorageType* storage_type = storage_types.at(type_id);
53
54   double Bread = surf_parse_get_bandwidth(storage_type->model_properties->at("Bread").c_str(),
55                                           "property Bread, storage", type_id.c_str());
56   double Bwrite = surf_parse_get_bandwidth(storage_type->model_properties->at("Bwrite").c_str(),
57                                            "property Bwrite, storage", type_id.c_str());
58
59   StorageImpl* storage =
60       new StorageN11(this, id, maxminSystem_, Bread, Bwrite, type_id, content_name, storage_type->size, attach);
61   storageCreatedCallbacks(storage);
62
63   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tBread '%f'\n", id.c_str(), type_id.c_str(),
64             Bread);
65
66   p_storageList.push_back(storage);
67
68   return storage;
69 }
70
71 double StorageN11Model::nextOccuringEvent(double now)
72 {
73   return StorageModel::nextOccuringEventFull(now);
74 }
75
76 void StorageN11Model::updateActionsState(double /*now*/, double delta)
77 {
78   ActionList *actionSet = getRunningActionSet();
79   for (ActionList::iterator it(actionSet->begin()), itNext = it, itend(actionSet->end()); it != itend; it = itNext) {
80     ++itNext;
81
82     StorageAction *action = static_cast<StorageAction*>(&*it);
83
84     double current_progress = lrint(lmm_variable_getvalue(action->getVariable()) * delta);
85
86     action->updateRemains(current_progress);
87     if (action->type_ == WRITE) {
88       action->storage_->usedSize_ += current_progress;
89       action->file_->incrPosition(current_progress);
90       action->file_->setSize(action->file_->tell());
91
92       action->storage_->getContent()->erase(action->file_->cname());
93       action->storage_->getContent()->insert({action->file_->cname(), action->file_->size()});
94     }
95
96     if (action->getMaxDuration() > NO_MAX_DURATION)
97       action->updateMaxDuration(delta);
98
99     if (action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
100         action->storage_->usedSize_ == action->storage_->getSize()) {
101       action->finish(Action::State::failed);
102     } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
103                ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
104       action->finish(Action::State::done);
105     }
106   }
107 }
108
109 /************
110  * Resource *
111  ************/
112
113 StorageN11::StorageN11(StorageModel* model, std::string name, lmm_system_t maxminSystem, double bread, double bwrite,
114                        std::string type_id, std::string content_name, sg_size_t size, std::string attach)
115     : StorageImpl(model, name, maxminSystem, bread, bwrite, type_id, content_name, size, attach)
116 {
117   XBT_DEBUG("Create resource with Bread '%f' Bwrite '%f' and Size '%llu'", bread, bwrite, size);
118   simgrid::s4u::Storage::onCreation(this->piface_);
119 }
120
121 StorageAction* StorageN11::read(sg_size_t size)
122 {
123   return new StorageN11Action(model(), size, isOff(), this, READ);
124 }
125
126 StorageAction* StorageN11::write(sg_size_t size)
127 {
128   return new StorageN11Action(model(), size, isOff(), this, WRITE);
129 }
130
131 /**********
132  * Action *
133  **********/
134
135 StorageN11Action::StorageN11Action(Model* model, double cost, bool failed, StorageImpl* storage,
136                                    e_surf_action_storage_type_t type)
137     : StorageAction(model, cost, failed, lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0, 3), storage, type)
138 {
139   XBT_IN("(%s,%g", storage->getCname(), cost);
140
141   // Must be less than the max bandwidth for all actions
142   lmm_expand(model->getMaxminSystem(), storage->constraint(), getVariable(), 1.0);
143   switch(type) {
144   case READ:
145     lmm_expand(model->getMaxminSystem(), storage->constraintRead_, getVariable(), 1.0);
146     break;
147   case WRITE:
148     lmm_expand(model->getMaxminSystem(), storage->constraintWrite_, getVariable(), 1.0);
149     break;
150   default:
151     THROW_UNIMPLEMENTED;
152   }
153   XBT_OUT();
154 }
155
156 int StorageN11Action::unref()
157 {
158   refcount_--;
159   if (not refcount_) {
160     if (action_hook.is_linked())
161       stateSet_->erase(stateSet_->iterator_to(*this));
162     if (getVariable())
163       lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
164     xbt_free(getCategory());
165     delete this;
166     return 1;
167   }
168   return 0;
169 }
170
171 void StorageN11Action::cancel()
172 {
173   setState(Action::State::failed);
174 }
175
176 void StorageN11Action::suspend()
177 {
178   XBT_IN("(%p)", this);
179   if (suspended_ != 2) {
180     lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
181     suspended_ = 1;
182   }
183   XBT_OUT();
184 }
185
186 void StorageN11Action::resume()
187 {
188   THROW_UNIMPLEMENTED;
189 }
190
191 bool StorageN11Action::isSuspended()
192 {
193   return suspended_ == 1;
194 }
195
196 void StorageN11Action::setMaxDuration(double /*duration*/)
197 {
198   THROW_UNIMPLEMENTED;
199 }
200
201 void StorageN11Action::setSharingWeight(double /*priority*/)
202 {
203   THROW_UNIMPLEMENTED;
204 }
205
206 }
207 }