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/Disk.hpp"
12 #include "simgrid/s4u/Engine.hpp"
13 #include "simgrid/s4u/Host.hpp"
14 #include "simgrid/s4u/Mailbox.hpp"
15 #include "simgrid/s4u/NetZone.hpp"
16 #include "simgrid/s4u/Storage.hpp"
17 #include "simgrid/simix.h"
18 #include "src/instr/instr_private.hpp"
19 #include "src/kernel/EngineImpl.hpp"
20 #include "src/simix/smx_private.hpp" // For access to simix_global->process_list
21 #include "src/surf/StorageImpl.hpp"
22 #include "src/surf/network_interface.hpp"
23 #include "surf/surf.hpp" // routing_platf. FIXME:KILLME. SOON
24 #include <simgrid/Exception.hpp>
28 XBT_LOG_NEW_CATEGORY(s4u, "Log channels of the S4U (Simgrid for you) interface");
29 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_engine, s4u, "Logging specific to S4U (engine)");
33 xbt::signal<void()> Engine::on_platform_creation;
34 xbt::signal<void()> Engine::on_platform_created;
35 xbt::signal<void()> Engine::on_simulation_end;
36 xbt::signal<void(double)> Engine::on_time_advance;
37 xbt::signal<void(void)> Engine::on_deadlock;
39 Engine* Engine::instance_ = nullptr; /* That singleton is awful, but I don't see no other solution right now. */
41 Engine::Engine(int* argc, char** argv) : pimpl(new kernel::EngineImpl())
43 xbt_assert(Engine::instance_ == nullptr, "It is currently forbidden to create more than one instance of s4u::Engine");
45 SIMIX_global_init(argc, argv);
47 Engine::instance_ = this;
53 Engine::instance_ = nullptr;
56 /** @brief Retrieve the engine singleton */
57 Engine* Engine::get_instance()
59 if (Engine::instance_ == nullptr) {
60 auto e = new Engine(0, nullptr);
61 xbt_assert(Engine::instance_ == e);
63 return Engine::instance_;
66 void Engine::shutdown()
68 delete Engine::instance_;
69 Engine::instance_ = nullptr;
72 double Engine::get_clock()
74 return SIMIX_get_clock();
78 * Creates a new platform, including hosts, links, and the routing table.
81 * See also: :ref:`platform`.
84 void Engine::load_platform(const std::string& platf)
86 double start = xbt_os_time();
88 parse_platform_file(platf);
89 } catch (const Exception& e) {
90 xbt_die("Error while loading %s: %s", platf.c_str(), e.what());
93 double end = xbt_os_time();
94 XBT_DEBUG("PARSE TIME: %g", (end - start));
97 /** Registers the main function of an actor that will be launched from the deployment file */
98 void Engine::register_function(const std::string& name, int (*code)(int, char**))
100 pimpl->register_function(name, code);
103 /** Registers the main function of an actor that will be launched from the deployment file */
104 void Engine::register_function(const std::string& name, void (*code)(std::vector<std::string>))
106 pimpl->register_function(name, code);
108 /** Registers a function as the default main function of actors
110 * It will be used as fallback when the function requested from the deployment file was not registered.
111 * It is used for trace-based simulations (see examples/s4u/replay-comms and similar).
113 void Engine::register_default(int (*code)(int, char**))
115 pimpl->register_default(code);
118 /** Load a deployment file and launch the actors that it contains
121 * See also: :ref:`deploy`.
124 void Engine::load_deployment(const std::string& deploy)
126 pimpl->load_deployment(deploy);
129 /** Returns the amount of hosts in the platform */
130 size_t Engine::get_host_count()
132 return pimpl->hosts_.size();
135 std::vector<Host*> Engine::get_all_hosts()
137 std::vector<Host*> res;
138 for (auto const& kv : pimpl->hosts_)
139 res.push_back(kv.second);
143 std::vector<Host*> Engine::get_filtered_hosts(const std::function<bool(Host*)>& filter)
145 std::vector<Host*> hosts;
146 for (auto const& kv : pimpl->hosts_) {
147 if (filter(kv.second))
148 hosts.push_back(kv.second);
154 void Engine::host_register(const std::string& name, Host* host)
156 pimpl->hosts_[name] = host;
159 void Engine::host_unregister(const std::string& name)
161 pimpl->hosts_.erase(name);
164 /** @brief Find a host from its name.
166 * @throw std::invalid_argument if the searched host does not exist.
168 Host* Engine::host_by_name(const std::string& name)
170 if (pimpl->hosts_.find(name) == pimpl->hosts_.end())
171 throw std::invalid_argument(std::string("Host not found: '") + name + std::string("'"));
172 return pimpl->hosts_.at(name);
175 /** @brief Find a host from its name (or nullptr if that host does not exist) */
176 Host* Engine::host_by_name_or_null(const std::string& name)
178 auto host = pimpl->hosts_.find(name);
179 return host == pimpl->hosts_.end() ? nullptr : host->second;
182 /** @brief Find a link from its name.
184 * @throw std::invalid_argument if the searched link does not exist.
186 Link* Engine::link_by_name(const std::string& name)
188 if (pimpl->links_.find(name) == pimpl->links_.end())
189 throw std::invalid_argument(std::string("Link not found: ") + name);
191 return pimpl->links_.at(name)->get_iface();
194 /** @brief Find an link from its name (or nullptr if that link does not exist) */
195 Link* Engine::link_by_name_or_null(const std::string& name)
197 auto link = pimpl->links_.find(name);
198 return link == pimpl->links_.end() ? nullptr : link->second->get_iface();
201 void Engine::link_register(const std::string& name, Link* link)
203 pimpl->links_[name] = link->get_impl();
206 void Engine::link_unregister(const std::string& name)
208 pimpl->links_.erase(name);
211 /** @brief Returns the amount of storages in the platform */
212 size_t Engine::get_storage_count()
214 return pimpl->storages_.size();
217 /** @brief Returns the list of all storages found in the platform */
218 std::vector<Storage*> Engine::get_all_storages()
220 std::vector<Storage*> res;
221 for (auto const& kv : pimpl->storages_)
222 res.push_back(kv.second->get_iface());
226 /** @brief Find a storage from its name.
228 * @throw std::invalid_argument if the searched storage does not exist.
230 Storage* Engine::storage_by_name(const std::string& name)
232 if (pimpl->storages_.find(name) == pimpl->storages_.end())
233 throw std::invalid_argument(std::string("Storage not found: ") + name);
235 return pimpl->storages_.at(name)->get_iface();
238 /** @brief Find a storage from its name (or nullptr if that storage does not exist) */
239 Storage* Engine::storage_by_name_or_null(const std::string& name)
241 auto storage = pimpl->storages_.find(name);
242 return storage == pimpl->storages_.end() ? nullptr : storage->second->get_iface();
245 void Engine::storage_register(const std::string& name, Storage* storage)
247 pimpl->storages_[name] = storage->get_impl();
250 void Engine::storage_unregister(const std::string& name)
252 pimpl->storages_.erase(name);
255 /** @brief Returns the amount of links in the platform */
256 size_t Engine::get_link_count()
258 return pimpl->links_.size();
261 /** @brief Returns the list of all links found in the platform */
262 std::vector<Link*> Engine::get_all_links()
264 std::vector<Link*> res;
265 for (auto const& kv : pimpl->links_)
266 res.push_back(kv.second->get_iface());
270 std::vector<Link*> Engine::get_filtered_links(const std::function<bool(Link*)>& filter)
272 std::vector<Link*> filtered_list;
273 for (auto const& kv : pimpl->links_) {
274 Link* l = kv.second->get_iface();
276 filtered_list.push_back(l);
278 return filtered_list;
281 size_t Engine::get_actor_count()
283 return simix_global->process_list.size();
286 std::vector<ActorPtr> Engine::get_all_actors()
288 std::vector<ActorPtr> actor_list;
289 actor_list.push_back(simgrid::s4u::Actor::self());
290 for (auto& kv : simix_global->process_list) {
291 actor_list.push_back(kv.second->iface());
296 std::vector<ActorPtr> Engine::get_filtered_actors(const std::function<bool(ActorPtr)>& filter)
298 std::vector<ActorPtr> actor_list;
299 for (auto& kv : simix_global->process_list) {
300 if (filter(kv.second->iface()))
301 actor_list.push_back(kv.second->iface());
308 /* Clean IO before the run */
312 if (MC_is_active()) {
319 /** @brief Retrieve the root netzone, containing all others */
320 s4u::NetZone* Engine::get_netzone_root()
322 return pimpl->netzone_root_->get_iface();
324 /** @brief Set the root netzone, containing all others. Once set, it cannot be changed. */
325 void Engine::set_netzone_root(s4u::NetZone* netzone)
327 xbt_assert(pimpl->netzone_root_ == nullptr, "The root NetZone cannot be changed once set");
328 pimpl->netzone_root_ = netzone->get_impl();
331 static NetZone* netzone_by_name_recursive(NetZone* current, const std::string& name)
333 if (current->get_name() == name)
336 for (auto const& elem : current->get_children()) {
337 NetZone* tmp = netzone_by_name_recursive(elem, name);
338 if (tmp != nullptr) {
345 /** @brief Retrieve the NetZone of the given name (or nullptr if not found) */
346 NetZone* Engine::netzone_by_name_or_null(const std::string& name)
348 return netzone_by_name_recursive(get_netzone_root(), name);
351 /** @brief Retrieve the netpoint of the given name (or nullptr if not found) */
352 kernel::routing::NetPoint* Engine::netpoint_by_name_or_null(const std::string& name)
354 auto netp = pimpl->netpoints_.find(name);
355 return netp == pimpl->netpoints_.end() ? nullptr : netp->second;
358 std::vector<kernel::routing::NetPoint*> Engine::get_all_netpoints()
360 std::vector<kernel::routing::NetPoint*> res;
361 for (auto const& kv : pimpl->netpoints_)
362 res.push_back(kv.second);
366 /** @brief Register a new netpoint to the system */
367 void Engine::netpoint_register(kernel::routing::NetPoint* point)
369 // simgrid::kernel::actor::simcall([&]{ FIXME: this segfaults in set_thread
370 pimpl->netpoints_[point->get_name()] = point;
374 /** @brief Unregister a given netpoint */
375 void Engine::netpoint_unregister(kernel::routing::NetPoint* point)
377 kernel::actor::simcall([this, point] {
378 pimpl->netpoints_.erase(point->get_name());
383 bool Engine::is_initialized()
385 return Engine::instance_ != nullptr;
387 void Engine::set_config(const std::string& str)
389 config::set_parse(str);
392 } // namespace simgrid
394 /* **************************** Public C interface *************************** */
395 void simgrid_init(int* argc, char** argv)
397 simgrid::s4u::Engine e(argc, argv);
399 void simgrid_load_platform(const char* file)
401 simgrid::s4u::Engine::get_instance()->load_platform(file);
404 void simgrid_load_deployment(const char* file)
406 simgrid::s4u::Engine::get_instance()->load_deployment(file);
410 simgrid::s4u::Engine::get_instance()->run();
412 void simgrid_register_function(const char* name, int (*code)(int, char**))
414 simgrid::s4u::Engine::get_instance()->register_function(name, code);
416 void simgrid_register_default(int (*code)(int, char**))
418 simgrid::s4u::Engine::get_instance()->register_default(code);
420 double simgrid_get_clock()
422 return simgrid::s4u::Engine::get_clock();
424 int simgrid_get_actor_count()
426 return simgrid::s4u::Engine::get_instance()->get_actor_count();