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 MSG_STORAGE_LEVEL = -1; // Msg storage level
19 int SURF_STORAGE_LEVEL = -1;
20 simgrid::surf::StorageModel* surf_storage_model = nullptr;
29 simgrid::xbt::signal<void(StorageImpl*)> storageCreatedCallbacks;
30 simgrid::xbt::signal<void(StorageImpl*)> storageDestructedCallbacks;
31 simgrid::xbt::signal<void(StorageImpl*, int, int)> storageStateChangedCallbacks; // signature: wasOn, isOn
32 simgrid::xbt::signal<void(StorageAction*, Action::State, Action::State)> storageActionStateChangedCallbacks;
34 /* List of storages */
35 std::unordered_map<std::string, StorageImpl*>* StorageImpl::storages =
36 new std::unordered_map<std::string, StorageImpl*>();
38 StorageImpl* StorageImpl::byName(const char* name)
40 if (storages->find(name) == storages->end())
42 return storages->at(name);
49 StorageModel::StorageModel() : Model()
51 maxminSystem_ = lmm_system_new(true /* lazy update */);
54 StorageModel::~StorageModel()
56 lmm_system_free(maxminSystem_);
57 surf_storage_model = nullptr;
64 StorageImpl::StorageImpl(Model* model, const char* name, lmm_system_t maxminSystem, double bread, double bwrite,
65 const char* type_id, const char* content_name, sg_size_t size, const char* attach)
66 : Resource(model, name, lmm_constraint_new(maxminSystem, this, MAX(bread, bwrite)))
70 , typeId_(xbt_strdup(type_id))
71 , writeActions_(std::vector<StorageAction*>())
73 content_ = parseContent(content_name);
74 attach_ = xbt_strdup(attach);
76 XBT_DEBUG("Create resource with Bread '%f' Bwrite '%f' and Size '%llu'", bread, bwrite, size);
77 constraintRead_ = lmm_constraint_new(maxminSystem, this, bread);
78 constraintWrite_ = lmm_constraint_new(maxminSystem, this, bwrite);
79 storages->insert({name, this});
82 StorageImpl::~StorageImpl()
84 storageDestructedCallbacks(this);
85 if (content_ != nullptr) {
86 for (auto entry : *content_)
94 std::map<std::string, sg_size_t*>* StorageImpl::parseContent(const char* filename)
97 if ((not filename) || (strcmp(filename, "") == 0))
100 std::map<std::string, sg_size_t*>* parse_content = new std::map<std::string, sg_size_t*>();
102 std::ifstream* fs = surf_ifsopen(filename);
105 std::vector<std::string> tokens;
107 std::getline(*fs, line);
109 if (line.length() > 0) {
110 boost::split(tokens, line, boost::is_any_of(" \t"), boost::token_compress_on);
111 xbt_assert(tokens.size() == 2, "Parse error in %s: %s", filename, line.c_str());
112 sg_size_t size = std::stoull(tokens.at(1));
115 sg_size_t* psize = new sg_size_t;
117 parse_content->insert({tokens.front(), psize});
119 } while (not fs->eof());
121 return parse_content;
124 bool StorageImpl::isUsed()
130 void StorageImpl::apply_event(tmgr_trace_event_t /*event*/, double /*value*/)
135 void StorageImpl::turnOn()
139 storageStateChangedCallbacks(this, 0, 1);
142 void StorageImpl::turnOff()
146 storageStateChangedCallbacks(this, 1, 0);
150 std::map<std::string, sg_size_t*>* StorageImpl::getContent()
152 /* For the moment this action has no cost, but in the future we could take in account access latency of the disk */
156 sg_size_t StorageImpl::getFreeSize()
158 return size_ - usedSize_;
161 sg_size_t StorageImpl::getUsedSize()
169 StorageAction::StorageAction(Model* model, double cost, bool failed, StorageImpl* storage,
170 e_surf_action_storage_type_t type)
171 : Action(model, cost, failed), type_(type), storage_(storage), file_(nullptr)
176 StorageAction::StorageAction(Model* model, double cost, bool failed, lmm_variable_t var, StorageImpl* storage,
177 e_surf_action_storage_type_t type)
178 : Action(model, cost, failed, var), type_(type), storage_(storage), file_(nullptr)
183 void StorageAction::setState(Action::State state)
185 Action::State old = getState();
186 Action::setState(state);
187 storageActionStateChangedCallbacks(this, old, state);