1 /* s4u::Engine Simulation Engine and global functions. */
3 /* Copyright (c) 2006-2019. The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #include "simgrid/kernel/routing/NetPoint.hpp"
10 #include "simgrid/kernel/routing/NetZoneImpl.hpp"
11 #include "simgrid/s4u/Engine.hpp"
12 #include "simgrid/s4u/Host.hpp"
13 #include "simgrid/s4u/Mailbox.hpp"
14 #include "simgrid/s4u/NetZone.hpp"
15 #include "simgrid/s4u/Storage.hpp"
16 #include "simgrid/simix.h"
17 #include "src/simix/smx_private.hpp" // For access to simix_global->process_list
18 #include "src/instr/instr_private.hpp"
19 #include "src/kernel/EngineImpl.hpp"
20 #include "src/surf/network_interface.hpp"
21 #include "surf/surf.hpp" // routing_platf. FIXME:KILLME. SOON
25 XBT_LOG_NEW_CATEGORY(s4u, "Log channels of the S4U (Simgrid for you) interface");
29 xbt::signal<void()> on_platform_creation;
30 xbt::signal<void()> on_platform_created;
31 xbt::signal<void()> on_simulation_end;
32 xbt::signal<void(double)> on_time_advance;
33 xbt::signal<void(void)> on_deadlock;
35 Engine* Engine::instance_ = nullptr; /* That singleton is awful, but I don't see no other solution right now. */
37 Engine::Engine(int* argc, char** argv) : pimpl(new kernel::EngineImpl())
39 xbt_assert(s4u::Engine::instance_ == nullptr,
40 "It is currently forbidden to create more than one instance of s4u::Engine");
42 SIMIX_global_init(argc, argv);
44 s4u::Engine::instance_ = this;
50 s4u::Engine::instance_ = nullptr;
53 /** @brief Retrieve the engine singleton */
54 Engine* Engine::get_instance()
56 if (s4u::Engine::instance_ == nullptr)
57 return new Engine(0, nullptr);
59 return s4u::Engine::instance_;
62 void Engine::shutdown()
64 delete s4u::Engine::instance_;
65 s4u::Engine::instance_ = nullptr;
68 double Engine::get_clock()
70 return SIMIX_get_clock();
73 void Engine::load_platform(std::string platf)
75 SIMIX_create_environment(platf);
78 void Engine::register_function(std::string name, int (*code)(int, char**))
80 SIMIX_function_register(name, code);
82 void Engine::register_function(std::string name, void (*code)(std::vector<std::string>))
84 SIMIX_function_register(name, code);
86 void Engine::register_default(int (*code)(int, char**))
88 SIMIX_function_register_default(code);
90 void Engine::load_deployment(std::string deploy)
92 SIMIX_launch_application(deploy);
94 /** @brief Returns the amount of hosts in the platform */
95 size_t Engine::get_host_count()
97 return pimpl->hosts_.size();
100 std::vector<Host*> Engine::get_all_hosts()
102 std::vector<Host*> res;
103 for (auto const& kv : pimpl->hosts_)
104 res.push_back(kv.second);
108 std::vector<Host*> Engine::get_filtered_hosts(std::function<bool(Host*)> filter)
110 std::vector<Host*> hosts;
111 for (auto const& kv : pimpl->hosts_) {
112 if (filter(kv.second))
113 hosts.push_back(kv.second);
119 void Engine::host_register(std::string name, simgrid::s4u::Host* host)
121 pimpl->hosts_[name] = host;
124 void Engine::host_unregister(std::string name)
126 pimpl->hosts_.erase(name);
129 /** @brief Find a host from its name.
131 * @throw std::invalid_argument if the searched host does not exist.
133 simgrid::s4u::Host* Engine::host_by_name(std::string name)
135 if (pimpl->hosts_.find(name) == pimpl->hosts_.end())
136 throw std::invalid_argument(std::string("Host not found: '") + name + std::string("'"));
137 return pimpl->hosts_.at(name);
140 /** @brief Find a host from its name (or nullptr if that host does not exist) */
141 simgrid::s4u::Host* Engine::host_by_name_or_null(std::string name)
143 auto host = pimpl->hosts_.find(name);
144 return host == pimpl->hosts_.end() ? nullptr : host->second;
147 /** @brief Find a link from its name.
149 * @throw std::invalid_argument if the searched link does not exist.
151 simgrid::s4u::Link* Engine::link_by_name(std::string name)
153 if (pimpl->links_.find(name) == pimpl->links_.end())
154 throw std::invalid_argument(std::string("Link not found: ") + name);
156 return pimpl->links_.at(name);
159 /** @brief Find an link from its name (or nullptr if that link does not exist) */
160 simgrid::s4u::Link* Engine::link_by_name_or_null(std::string name)
162 auto link = pimpl->links_.find(name);
163 return link == pimpl->links_.end() ? nullptr : link->second;
166 void Engine::link_register(std::string name, simgrid::s4u::Link* link)
168 pimpl->links_[name] = link;
171 void Engine::link_unregister(std::string name)
173 pimpl->links_.erase(name);
176 /** @brief Returns the amount of storages in the platform */
177 size_t Engine::get_storage_count()
179 return pimpl->storages_.size();
182 /** @brief Returns the list of all storages found in the platform */
183 std::vector<Storage*> Engine::get_all_storages()
185 std::vector<Storage*> res;
186 for (auto const& kv : pimpl->storages_)
187 res.push_back(kv.second);
191 /** @brief Find a storage from its name.
193 * @throw std::invalid_argument if the searched storage does not exist.
195 simgrid::s4u::Storage* Engine::storage_by_name(std::string name)
197 if (pimpl->storages_.find(name) == pimpl->storages_.end())
198 throw std::invalid_argument(std::string("Storage not found: ") + name);
200 return pimpl->storages_.at(name);
203 /** @brief Find a storage from its name (or nullptr if that storage does not exist) */
204 simgrid::s4u::Storage* Engine::storage_by_name_or_null(std::string name)
206 auto storage = pimpl->storages_.find(name);
207 return storage == pimpl->storages_.end() ? nullptr : storage->second;
210 void Engine::storage_register(std::string name, simgrid::s4u::Storage* storage)
212 pimpl->storages_[name] = storage;
215 void Engine::storage_unregister(std::string name)
217 pimpl->storages_.erase(name);
220 /** @brief Returns the amount of links in the platform */
221 size_t Engine::get_link_count()
223 return pimpl->links_.size();
226 /** @brief Returns the list of all links found in the platform */
227 std::vector<Link*> Engine::get_all_links()
229 std::vector<Link*> res;
230 for (auto const& kv : pimpl->links_)
231 res.push_back(kv.second);
235 std::vector<Link*> Engine::get_filtered_links(std::function<bool(Link*)> filter)
237 std::vector<Link*> filtered_list;
238 for (auto const& kv : pimpl->links_)
239 if (filter(kv.second))
240 filtered_list.push_back(kv.second);
241 return filtered_list;
244 size_t Engine::get_actor_count()
246 return simix_global->process_list.size();
249 std::vector<ActorPtr> Engine::get_all_actors()
251 std::vector<ActorPtr> actor_list;
252 actor_list.push_back(simgrid::s4u::Actor::self());
253 for (auto& kv : simix_global->process_list) {
254 actor_list.push_back(kv.second->iface());
259 std::vector<ActorPtr> Engine::get_filtered_actors(std::function<bool(ActorPtr)> filter)
261 std::vector<ActorPtr> actor_list;
262 for (auto& kv : simix_global->process_list) {
263 if (filter(kv.second->iface()))
264 actor_list.push_back(kv.second->iface());
271 /* Clean IO before the run */
275 if (MC_is_active()) {
282 /** @brief Retrieve the root netzone, containing all others */
283 s4u::NetZone* Engine::get_netzone_root()
285 return pimpl->netzone_root_->get_iface();
287 /** @brief Set the root netzone, containing all others. Once set, it cannot be changed. */
288 void Engine::set_netzone_root(s4u::NetZone* netzone)
290 xbt_assert(pimpl->netzone_root_ == nullptr, "The root NetZone cannot be changed once set");
291 pimpl->netzone_root_ = netzone->get_impl();
294 static s4u::NetZone* netzone_by_name_recursive(s4u::NetZone* current, std::string name)
296 if (current->get_name() == name)
299 for (auto const& elem : current->get_children()) {
300 simgrid::s4u::NetZone* tmp = netzone_by_name_recursive(elem, name);
301 if (tmp != nullptr) {
308 /** @brief Retrieve the NetZone of the given name (or nullptr if not found) */
309 NetZone* Engine::netzone_by_name_or_null(std::string name)
311 return netzone_by_name_recursive(get_netzone_root(), name);
314 /** @brief Retrieve the netpoint of the given name (or nullptr if not found) */
315 simgrid::kernel::routing::NetPoint* Engine::netpoint_by_name_or_null(std::string name)
317 auto netp = pimpl->netpoints_.find(name);
318 return netp == pimpl->netpoints_.end() ? nullptr : netp->second;
321 /** @brief Fill the provided vector with all existing netpoints */
322 void Engine::getNetpointList(std::vector<simgrid::kernel::routing::NetPoint*>* list)
324 for (auto const& kv : pimpl->netpoints_)
325 list->push_back(kv.second);
327 std::vector<simgrid::kernel::routing::NetPoint*> Engine::get_all_netpoints()
329 std::vector<simgrid::kernel::routing::NetPoint*> res;
330 for (auto const& kv : pimpl->netpoints_)
331 res.push_back(kv.second);
335 /** @brief Register a new netpoint to the system */
336 void Engine::netpoint_register(simgrid::kernel::routing::NetPoint* point)
338 // simgrid::simix::simcall([&]{ FIXME: this segfaults in set_thread
339 pimpl->netpoints_[point->get_name()] = point;
342 /** @brief Unregister a given netpoint */
343 void Engine::netpoint_unregister(simgrid::kernel::routing::NetPoint* point)
345 simgrid::simix::simcall([this, point] {
346 pimpl->netpoints_.erase(point->get_name());
351 bool Engine::is_initialized()
353 return Engine::instance_ != nullptr;
355 void Engine::set_config(std::string str)
357 simgrid::config::set_parse(std::move(str));
360 } // namespace simgrid
362 /* **************************** Public C interface *************************** */
363 void simgrid_init(int* argc, char** argv)
365 simgrid::s4u::Engine e(argc, argv);
367 void simgrid_load_platform(const char* file)
369 simgrid::s4u::Engine::get_instance()->load_platform(file);
372 void simgrid_load_deployment(const char* file)
374 simgrid::s4u::Engine::get_instance()->load_deployment(file);
378 simgrid::s4u::Engine::get_instance()->run();
380 void simgrid_register_function(const char* name, int (*code)(int, char**))
382 simgrid::s4u::Engine::get_instance()->register_function(name, code);
384 void simgrid_register_default(int (*code)(int, char**))
386 simgrid::s4u::Engine::get_instance()->register_default(code);
388 double simgrid_get_clock()
390 return simgrid::s4u::Engine::get_clock();