1 /* Copyright (c) 2013-2017. 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 "StorageImpl.hpp"
9 #include "surf_private.h"
10 #include <boost/algorithm/string.hpp>
11 #include <boost/algorithm/string/join.hpp>
12 #include <boost/algorithm/string/split.hpp>
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf, "Logging specific to the SURF storage module");
17 xbt_lib_t storage_lib;
18 int SURF_STORAGE_LEVEL = -1;
19 simgrid::surf::StorageModel* surf_storage_model = nullptr;
28 simgrid::xbt::signal<void(StorageImpl*)> storageCreatedCallbacks;
29 simgrid::xbt::signal<void(StorageImpl*)> storageDestructedCallbacks;
30 simgrid::xbt::signal<void(StorageImpl*, int, int)> storageStateChangedCallbacks; // signature: wasOn, isOn
31 simgrid::xbt::signal<void(StorageAction*, Action::State, Action::State)> storageActionStateChangedCallbacks;
33 /* List of storages */
34 std::unordered_map<std::string, StorageImpl*>* StorageImpl::storages =
35 new std::unordered_map<std::string, StorageImpl*>();
37 StorageImpl* StorageImpl::byName(const char* name)
39 if (storages->find(name) == storages->end())
41 return storages->at(name);
48 StorageModel::StorageModel() : Model()
50 maxminSystem_ = lmm_system_new(true /* lazy update */);
53 StorageModel::~StorageModel()
55 lmm_system_free(maxminSystem_);
56 surf_storage_model = nullptr;
63 StorageImpl::StorageImpl(Model* model, const char* name, lmm_system_t maxminSystem, double bread, double bwrite,
64 const char* type_id, const char* content_name, sg_size_t size, const char* attach)
65 : Resource(model, name, lmm_constraint_new(maxminSystem, this, MAX(bread, bwrite)))
69 , typeId_(xbt_strdup(type_id))
70 , writeActions_(std::vector<StorageAction*>())
72 content_ = parseContent(content_name);
73 attach_ = xbt_strdup(attach);
75 XBT_DEBUG("Create resource with Bread '%f' Bwrite '%f' and Size '%llu'", bread, bwrite, size);
76 constraintRead_ = lmm_constraint_new(maxminSystem, this, bread);
77 constraintWrite_ = lmm_constraint_new(maxminSystem, this, bwrite);
78 storages->insert({name, this});
81 StorageImpl::~StorageImpl()
83 storageDestructedCallbacks(this);
84 if (content_ != nullptr) {
85 for (auto entry : *content_)
93 std::map<std::string, sg_size_t*>* StorageImpl::parseContent(const char* filename)
96 if ((not filename) || (strcmp(filename, "") == 0))
99 std::map<std::string, sg_size_t*>* parse_content = new std::map<std::string, sg_size_t*>();
101 std::ifstream* fs = surf_ifsopen(filename);
104 std::vector<std::string> tokens;
106 std::getline(*fs, line);
108 if (line.length() > 0) {
109 boost::split(tokens, line, boost::is_any_of(" \t"), boost::token_compress_on);
110 xbt_assert(tokens.size() == 2, "Parse error in %s: %s", filename, line.c_str());
111 sg_size_t size = std::stoull(tokens.at(1));
114 sg_size_t* psize = new sg_size_t;
116 parse_content->insert({tokens.front(), psize});
118 } while (not fs->eof());
120 return parse_content;
123 bool StorageImpl::isUsed()
129 void StorageImpl::apply_event(tmgr_trace_event_t /*event*/, double /*value*/)
134 void StorageImpl::turnOn()
138 storageStateChangedCallbacks(this, 0, 1);
141 void StorageImpl::turnOff()
145 storageStateChangedCallbacks(this, 1, 0);
149 std::map<std::string, sg_size_t*>* StorageImpl::getContent()
151 /* For the moment this action has no cost, but in the future we could take in account access latency of the disk */
155 sg_size_t StorageImpl::getFreeSize()
157 return size_ - usedSize_;
160 sg_size_t StorageImpl::getUsedSize()
168 StorageAction::StorageAction(Model* model, double cost, bool failed, StorageImpl* storage,
169 e_surf_action_storage_type_t type)
170 : Action(model, cost, failed), type_(type), storage_(storage), file_(nullptr)
175 StorageAction::StorageAction(Model* model, double cost, bool failed, lmm_variable_t var, StorageImpl* storage,
176 e_surf_action_storage_type_t type)
177 : Action(model, cost, failed, var), type_(type), storage_(storage), file_(nullptr)
182 void StorageAction::setState(Action::State state)
184 Action::State old = getState();
185 Action::setState(state);
186 storageActionStateChangedCallbacks(this, old, state);