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);
89 friend kernel::routing::NetPoint;
90 friend kernel::routing::NetZoneImpl;
91 void host_register(std::string name, simgrid::s4u::Host* host);
92 void host_unregister(std::string name);
93 void storage_register(std::string name, simgrid::s4u::Storage* storage);
94 void storage_unregister(std::string name);
95 void netpoint_register(simgrid::kernel::routing::NetPoint* card);
96 void netpoint_unregister(simgrid::kernel::routing::NetPoint* card);
99 size_t get_host_count();
100 std::vector<Host*> get_all_hosts();
101 std::vector<Host*> get_filtered_hosts(std::function<bool(Host*)> filter);
102 simgrid::s4u::Host* host_by_name(std::string name);
103 simgrid::s4u::Host* host_by_name_or_null(std::string name);
105 size_t get_link_count();
106 std::vector<Link*> get_all_links();
108 size_t get_storage_count();
109 std::vector<Storage*> get_all_storages();
110 simgrid::s4u::Storage* storage_by_name(std::string name);
111 simgrid::s4u::Storage* storage_by_name_or_null(std::string name);
113 std::vector<simgrid::kernel::routing::NetPoint*> get_all_netpoints();
114 simgrid::kernel::routing::NetPoint* netpoint_by_name_or_null(std::string name);
116 simgrid::s4u::NetZone* get_netzone_root();
117 void set_netzone_root(s4u::NetZone* netzone);
119 simgrid::s4u::NetZone* netzone_by_name_or_null(const char* name);
121 /** @brief Retrieves all netzones of the type indicated by the template argument */
122 template <class T> std::vector<T*> filter_netzones_by_type()
125 filter_netzones_by_type_recursive(get_netzone_root(), &res);
129 /** Returns whether SimGrid was initialized yet -- mostly for internal use */
130 static bool is_initialized();
131 /** @brief set a configuration variable
133 * Do --help on any simgrid binary to see the list of currently existing configuration variables (see also @ref
137 * e->set_config("host/model:ptask_L07");
139 void set_config(std::string str);
142 simgrid::kernel::EngineImpl* pimpl;
143 static s4u::Engine* instance_;
145 //////////////// Deprecated functions
147 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::load_platform()") void loadPlatform(const char* platf)
149 load_platform(platf);
151 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_function()") void registerFunction(const char* name,
152 int (*code)(int, char**))
154 register_function(name, code);
156 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_default()") void registerDefault(int (*code)(int, char**))
158 register_default(code);
161 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_actor()") void registerFunction(const char* name)
163 register_actor<F>(name);
166 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_actor()") void registerFunction(const char* name, F code)
168 register_actor<F>(name, code);
171 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::load_deployment()") void loadDeployment(const char* deploy)
173 load_deployment(deploy);
175 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::host_by_name()") simgrid::s4u::Host* hostByName(std::string name)
177 return host_by_name(name);
179 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::host_by_name_or_null()") simgrid::s4u::Host* hostByNameOrNull(
182 return host_by_name_or_null(name);
184 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::storage_by_name()") simgrid::s4u::Storage* storageByName(
187 return storage_by_name(name);
189 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::storage_by_name_or_null()") simgrid::s4u::Storage* storageByNameOrNull(
192 return storage_by_name_or_null(name);
195 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_host_count()") size_t getHostCount() { return get_host_count(); }
196 XBT_ATTRIB_DEPRECATED_v322("Engine::getHostList() is deprecated in favor of Engine::get_all_hosts(). Please switch "
197 "before v3.22") void getHostList(std::vector<Host*>* whereTo);
198 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_hosts()") std::vector<Host*> getAllHosts()
200 return get_all_hosts();
202 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_link_count()") size_t getLinkCount() { return get_link_count(); }
203 XBT_ATTRIB_DEPRECATED_v322("Engine::getLinkList() is deprecated in favor of Engine::get_all_links(). Please "
204 "switch before v3.22") void getLinkList(std::vector<Link*>* list);
205 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_link_list()") std::vector<Link*> getAllLinks()
207 return get_all_links();
209 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_storages()") std::vector<Storage*> getAllStorages()
211 return get_all_storages();
213 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_clock()") static double getClock() { return get_clock(); }
214 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_netpoints()") void getNetpointList(
215 std::vector<simgrid::kernel::routing::NetPoint*>* list);
216 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::netpoint_by_name_or_null()")
217 simgrid::kernel::routing::NetPoint* getNetpointByNameOrNull(std::string name)
219 return netpoint_by_name_or_null(name);
221 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_netzone_root()") simgrid::s4u::NetZone* getNetRoot()
223 return get_netzone_root();
225 XBT_ATTRIB_DEPRECATED_v323(
226 "Please use Engine::netzone_by_name_or_null()") simgrid::s4u::NetZone* getNetzoneByNameOrNull(const char* name)
228 return netzone_by_name_or_null(name);
231 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::filter_netzones_by_type()") void getNetzoneByType(
232 std::vector<T*>* whereto)
234 filter_netzones_by_type_recursive(get_netzone_root(), whereto);
237 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_instance()") static s4u::Engine* getInstance()
239 return get_instance();
241 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::is_initialized()") static bool isInitialized()
243 return is_initialized();
245 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::set_config()") void setConfig(std::string str) { set_config(str); }
248 /** Callback fired when the platform is created (ie, the xml file parsed),
249 * right before the actual simulation starts. */
250 extern XBT_PUBLIC xbt::signal<void()> on_platform_created;
252 /** Callback fired when the platform is about to be created
253 * (ie, after any configuration change and just before the resource creation) */
254 extern XBT_PUBLIC xbt::signal<void()> on_platform_creation;
256 /** Callback fired when the main simulation loop ends, just before the end of Engine::run() */
257 extern XBT_PUBLIC xbt::signal<void()> on_simulation_end;
259 /** Callback fired when the time jumps into the future */
260 extern XBT_PUBLIC xbt::signal<void(double)> on_time_advance;
262 /** Callback fired when the time cannot jump because of inter-actors deadlock */
263 extern XBT_PUBLIC xbt::signal<void(void)> on_deadlock;
265 template <class T> XBT_PRIVATE void filter_netzones_by_type_recursive(s4u::NetZone* current, std::vector<T*>* whereto)
267 for (auto const& elem : *(current->getChildren())) {
268 filter_netzones_by_type_recursive(elem, whereto);
269 if (elem == dynamic_cast<T*>(elem))
270 whereto->push_back(dynamic_cast<T*>(elem));
274 } // namespace simgrid::s4u
276 #endif /* SIMGRID_S4U_ENGINE_HPP */