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 "storage_interface.hpp"
8 #include "surf_private.h"
9 #include <boost/algorithm/string.hpp>
10 #include <boost/algorithm/string/join.hpp>
11 #include <boost/algorithm/string/split.hpp>
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf, "Logging specific to the SURF storage module");
16 xbt_lib_t storage_lib;
17 int MSG_STORAGE_LEVEL = -1; // Msg storage level
18 int SURF_STORAGE_LEVEL = -1;
19 simgrid::surf::StorageModel *surf_storage_model = nullptr;
28 simgrid::xbt::signal<void(Storage*)> storageCreatedCallbacks;
29 simgrid::xbt::signal<void(Storage*)> storageDestructedCallbacks;
30 simgrid::xbt::signal<void(Storage*, int, int)> storageStateChangedCallbacks; // signature: wasOn, isOn
31 simgrid::xbt::signal<void(StorageAction*, Action::State, Action::State)> storageActionStateChangedCallbacks;
37 StorageModel::StorageModel(): Model()
39 maxminSystem_ = lmm_system_new(true /* lazy update */);
42 StorageModel::~StorageModel(){
43 lmm_system_free(maxminSystem_);
44 surf_storage_model = nullptr;
51 Storage::Storage(Model* model, const char* name, lmm_system_t maxminSystem, double bread, double bwrite,
52 const char* type_id, const char* content_name, sg_size_t size, const char* attach)
53 : Resource(model, name, lmm_constraint_new(maxminSystem, this, MAX(bread, bwrite)))
56 , typeId_(xbt_strdup(type_id))
57 , writeActions_(std::vector<StorageAction*>())
59 content_ = parseContent(content_name);
60 attach_ = xbt_strdup(attach);
62 XBT_DEBUG("Create resource with Bread '%f' Bwrite '%f' and Size '%llu'", bread, bwrite, size);
63 constraintRead_ = lmm_constraint_new(maxminSystem, this, bread);
64 constraintWrite_ = lmm_constraint_new(maxminSystem, this, bwrite);
68 storageDestructedCallbacks(this);
69 if (content_ != nullptr) {
70 for (auto entry : *content_)
78 std::map<std::string, sg_size_t*>* Storage::parseContent(const char* filename)
81 if ((not filename) || (strcmp(filename, "") == 0))
84 std::map<std::string, sg_size_t*>* parse_content = new std::map<std::string, sg_size_t*>();
86 std::ifstream* fs = surf_ifsopen(filename);
89 std::vector<std::string> tokens;
91 std::getline(*fs, line);
93 if (line.length() > 0) {
94 boost::split(tokens, line, boost::is_any_of(" \t"), boost::token_compress_on);
95 xbt_assert(tokens.size() == 2, "Parse error in %s: %s", filename, line.c_str());
96 sg_size_t size = std::stoull(tokens.at(1));
99 sg_size_t* psize = new sg_size_t;
101 parse_content->insert({tokens.front(), psize});
103 } while (not fs->eof());
105 return parse_content;
108 bool Storage::isUsed()
114 void Storage::apply_event(tmgr_trace_event_t /*event*/, double /*value*/)
119 void Storage::turnOn() {
122 storageStateChangedCallbacks(this, 0, 1);
125 void Storage::turnOff() {
128 storageStateChangedCallbacks(this, 1, 0);
132 std::map<std::string, sg_size_t*>* Storage::getContent()
134 /* For the moment this action has no cost, but in the future we could take in account access latency of the disk */
138 sg_size_t Storage::getFreeSize(){
139 return size_ - usedSize_;
142 sg_size_t Storage::getUsedSize(){
149 StorageAction::StorageAction(Model* model, double cost, bool failed, Storage* storage,
150 e_surf_action_storage_type_t type)
151 : Action(model, cost, failed), type_(type), storage_(storage), file_(nullptr)
156 StorageAction::StorageAction(Model* model, double cost, bool failed, lmm_variable_t var, Storage* storage,
157 e_surf_action_storage_type_t type)
158 : Action(model, cost, failed, var), type_(type), storage_(storage), file_(nullptr)
163 void StorageAction::setState(Action::State state){
164 Action::State old = getState();
165 Action::setState(state);
166 storageActionStateChangedCallbacks(this, old, state);