1 /* Copyright (c) 2006-2018. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #ifndef SIMGRID_S4U_ENGINE_HPP
7 #define SIMGRID_S4U_ENGINE_HPP
14 #include <xbt/functional.hpp>
16 #include <simgrid/forward.h>
17 #include <simgrid/simix.hpp>
19 #include <simgrid/s4u/NetZone.hpp>
23 /** @brief Simulation engine
25 * This class is an interface to the simulation engine.
27 class XBT_PUBLIC Engine {
29 /** Constructor, taking the command line parameters of your main function */
30 explicit Engine(int* argc, char** argv);
31 /** Currently, only one instance is allowed to exist. This is why you can't copy or move it */
32 Engine(const Engine&) = delete;
33 Engine(Engine&&) = delete;
36 /** Finalize the default engine and all its dependencies */
37 static void shutdown();
39 /** @brief Run the simulation */
42 /** @brief Retrieve the simulation time */
43 static double get_clock();
44 /** @brief Retrieve the engine singleton */
45 static s4u::Engine* get_instance();
47 /** @brief Load a platform file describing the environment
49 * The environment is either a XML file following the simgrid.dtd formalism, or a lua file.
50 * Some examples can be found in the directory examples/platforms.
52 void load_platform(const char* platf);
54 /** Registers the main function of an actor that will be launched from the deployment file */
55 void register_function(const char* name, int (*code)(int, char**));
56 // FIXME: provide a register_function(std::string, void (*code)(int, char**)) and deprecate the int returning one
57 // FIXME: provide a register_function(std::string, std::vector<std::string>)
59 /** Registers a function as the default main function of actors
61 * It will be used as fallback when the function requested from the deployment file was not registered.
62 * It is used for trace-based simulations (see examples/s4u/replay-comms and similar).
64 void register_default(int (*code)(int, char**));
66 template <class F> void register_actor(const char* name)
68 simgrid::simix::register_function(name, [](std::vector<std::string> args) {
69 return simgrid::simix::ActorCode([args] {
70 F code(std::move(args));
76 template <class F> void register_actor(const char* name, F code)
78 simgrid::simix::register_function(name, [code](std::vector<std::string> args) {
79 return simgrid::simix::ActorCode([code, args] { code(std::move(args)); });
83 /** @brief Load a deployment file and launch the actors that it contains */
84 void load_deployment(const char* deploy);
90 friend kernel::routing::NetPoint;
91 friend kernel::routing::NetZoneImpl;
92 friend kernel::resource::LinkImpl;
93 void host_register(std::string name, simgrid::s4u::Host* host);
94 void host_unregister(std::string name);
95 void link_register(std::string name, simgrid::s4u::Link* link);
96 void link_unregister(std::string name);
97 void storage_register(std::string name, simgrid::s4u::Storage* storage);
98 void storage_unregister(std::string name);
99 void netpoint_register(simgrid::kernel::routing::NetPoint* card);
100 void netpoint_unregister(simgrid::kernel::routing::NetPoint* card);
103 size_t get_host_count();
104 std::vector<Host*> get_all_hosts();
105 std::vector<Host*> get_filtered_hosts(std::function<bool(Host*)> filter);
106 simgrid::s4u::Host* host_by_name(std::string name);
107 simgrid::s4u::Host* host_by_name_or_null(std::string name);
109 size_t get_link_count();
110 std::vector<Link*> get_all_links();
111 std::vector<Link*> get_filtered_links(std::function<bool(Link*)> filter);
112 simgrid::s4u::Link* link_by_name(std::string name);
113 simgrid::s4u::Link* link_by_name_or_null(std::string name);
115 size_t get_actor_count();
116 std::vector<ActorPtr> get_all_actors();
117 std::vector<ActorPtr> get_filtered_actors(std::function<bool(ActorPtr)> filter);
119 size_t get_storage_count();
120 std::vector<Storage*> get_all_storages();
121 simgrid::s4u::Storage* storage_by_name(std::string name);
122 simgrid::s4u::Storage* storage_by_name_or_null(std::string name);
124 std::vector<simgrid::kernel::routing::NetPoint*> get_all_netpoints();
125 simgrid::kernel::routing::NetPoint* netpoint_by_name_or_null(std::string name);
127 simgrid::s4u::NetZone* get_netzone_root();
128 void set_netzone_root(s4u::NetZone* netzone);
130 simgrid::s4u::NetZone* netzone_by_name_or_null(const char* name);
132 /** @brief Retrieves all netzones of the type indicated by the template argument */
133 template <class T> std::vector<T*> get_filtered_netzones()
135 static_assert(std::is_base_of<kernel::routing::NetZoneImpl, T>::value,
136 "Filtering netzones is only possible for subclasses of kernel::routing::NetZoneImpl");
138 get_filtered_netzones_recursive(get_netzone_root(), &res);
142 /** Returns whether SimGrid was initialized yet -- mostly for internal use */
143 static bool is_initialized();
144 /** @brief set a configuration variable
146 * Do --help on any simgrid binary to see the list of currently existing configuration variables (see also @ref
150 * e->set_config("host/model:ptask_L07");
152 void set_config(std::string str);
155 simgrid::kernel::EngineImpl* pimpl;
156 static s4u::Engine* instance_;
158 //////////////// Deprecated functions
160 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::load_platform()") void loadPlatform(const char* platf)
162 load_platform(platf);
164 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_function()") void registerFunction(const char* name,
165 int (*code)(int, char**))
167 register_function(name, code);
169 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_default()") void registerDefault(int (*code)(int, char**))
171 register_default(code);
174 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_actor()") void registerFunction(const char* name)
176 register_actor<F>(name);
179 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_actor()") void registerFunction(const char* name, F code)
181 register_actor<F>(name, code);
184 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::load_deployment()") void loadDeployment(const char* deploy)
186 load_deployment(deploy);
188 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::host_by_name()") simgrid::s4u::Host* hostByName(std::string name)
190 return host_by_name(name);
192 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::host_by_name_or_null()") simgrid::s4u::Host* hostByNameOrNull(
195 return host_by_name_or_null(name);
197 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::storage_by_name()") simgrid::s4u::Storage* storageByName(
200 return storage_by_name(name);
202 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::storage_by_name_or_null()") simgrid::s4u::Storage* storageByNameOrNull(
205 return storage_by_name_or_null(name);
208 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_host_count()") size_t getHostCount() { return get_host_count(); }
209 XBT_ATTRIB_DEPRECATED_v322("Please use Engine::get_all_hosts()") void getHostList(std::vector<Host*>* whereTo);
210 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_hosts()") std::vector<Host*> getAllHosts()
212 return get_all_hosts();
214 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_link_count()") size_t getLinkCount() { return get_link_count(); }
215 XBT_ATTRIB_DEPRECATED_v322("Please use Engine::get_all_links()") void getLinkList(std::vector<Link*>* list);
216 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_link_list()") std::vector<Link*> getAllLinks()
218 return get_all_links();
220 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_storages()") std::vector<Storage*> getAllStorages()
222 return get_all_storages();
224 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_clock()") static double getClock() { return get_clock(); }
225 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_netpoints()") void getNetpointList(
226 std::vector<simgrid::kernel::routing::NetPoint*>* list);
227 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::netpoint_by_name_or_null()") simgrid::kernel::routing::NetPoint* getNetpointByNameOrNull(std::string name)
229 return netpoint_by_name_or_null(name);
231 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_netzone_root()") simgrid::s4u::NetZone* getNetRoot()
233 return get_netzone_root();
235 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::netzone_by_name_or_null()") simgrid::s4u::NetZone* getNetzoneByNameOrNull(const char* name)
237 return netzone_by_name_or_null(name);
240 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::filter_netzones_by_type()") void getNetzoneByType(
241 std::vector<T*>* whereto)
243 get_filtered_netzones_recursive(get_netzone_root(), whereto);
246 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_instance()") static s4u::Engine* getInstance()
248 return get_instance();
250 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::is_initialized()") static bool isInitialized()
252 return is_initialized();
254 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::set_config()") void setConfig(std::string str) { set_config(str); }
257 /** Callback fired when the platform is created (ie, the xml file parsed),
258 * right before the actual simulation starts. */
259 extern XBT_PUBLIC xbt::signal<void()> on_platform_created;
261 /** Callback fired when the platform is about to be created
262 * (ie, after any configuration change and just before the resource creation) */
263 extern XBT_PUBLIC xbt::signal<void()> on_platform_creation;
265 /** Callback fired when the main simulation loop ends, just before the end of Engine::run() */
266 extern XBT_PUBLIC xbt::signal<void()> on_simulation_end;
268 /** Callback fired when the time jumps into the future */
269 extern XBT_PUBLIC xbt::signal<void(double)> on_time_advance;
271 /** Callback fired when the time cannot advance because of inter-actors deadlock */
272 extern XBT_PUBLIC xbt::signal<void(void)> on_deadlock;
274 template <class T> XBT_PRIVATE void get_filtered_netzones_recursive(s4u::NetZone* current, std::vector<T*>* whereto)
276 static_assert(std::is_base_of<kernel::routing::NetZoneImpl, T>::value,
277 "Filtering netzones is only possible for subclasses of kernel::routing::NetZoneImpl");
278 for (auto const& elem : current->get_children()) {
279 get_filtered_netzones_recursive(elem, whereto);
280 if (elem->get_impl() == dynamic_cast<T*>(elem->get_impl()))
281 whereto->push_back(dynamic_cast<T*>(elem->get_impl()));
285 } // namespace simgrid::s4u
287 #endif /* SIMGRID_S4U_ENGINE_HPP */