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 Engine(int* argc, char** argv);
33 /** Finalize the default engine and all its dependencies */
34 static void shutdown();
36 /** @brief Run the simulation */
39 /** @brief Retrieve the simulation time */
40 static double get_clock();
41 /** @brief Retrieve the engine singleton */
42 static s4u::Engine* get_instance();
44 /** @brief Load a platform file describing the environment
46 * The environment is either a XML file following the simgrid.dtd formalism, or a lua file.
47 * Some examples can be found in the directory examples/platforms.
49 void load_platform(const char* platf);
51 /** Registers the main function of an actor that will be launched from the deployment file */
52 void register_function(const char* name, int (*code)(int, char**));
53 // FIXME: provide a register_function(std::string, void (*code)(int, char**)) and deprecate the int returning one
54 // FIXME: provide a register_function(std::string, std::vector<std::string>)
56 /** Registers a function as the default main function of actors
58 * It will be used as fallback when the function requested from the deployment file was not registered.
59 * It is used for trace-based simulations (see examples/s4u/replay-comms and similar).
61 void register_default(int (*code)(int, char**));
63 template <class F> void register_actor(const char* name)
65 simgrid::simix::register_function(name, [](std::vector<std::string> args) {
66 return simgrid::simix::ActorCode([args] {
67 F code(std::move(args));
73 template <class F> void register_actor(const char* name, F code)
75 simgrid::simix::register_function(name, [code](std::vector<std::string> args) {
76 return simgrid::simix::ActorCode([code, args] { code(std::move(args)); });
80 /** @brief Load a deployment file and launch the actors that it contains */
81 void load_deployment(const char* deploy);
86 friend kernel::routing::NetPoint;
87 friend kernel::routing::NetZoneImpl;
88 void host_register(std::string name, simgrid::s4u::Host* host);
89 void host_unregister(std::string name);
90 void storage_register(std::string name, simgrid::s4u::Storage* storage);
91 void storage_unregister(std::string name);
92 void netpoint_register(simgrid::kernel::routing::NetPoint* card);
93 void netpoint_unregister(simgrid::kernel::routing::NetPoint* card);
96 size_t get_host_count();
97 std::vector<Host*> get_all_hosts();
98 std::vector<Host*> get_filtered_hosts(std::function<bool(Host*)> filter);
99 simgrid::s4u::Host* host_by_name(std::string name);
100 simgrid::s4u::Host* host_by_name_or_null(std::string name);
102 size_t get_link_count();
103 std::vector<Link*> get_all_links();
105 size_t get_storage_count();
106 std::vector<Storage*> get_all_storages();
107 simgrid::s4u::Storage* storage_by_name(std::string name);
108 simgrid::s4u::Storage* storage_by_name_or_null(std::string name);
110 std::vector<simgrid::kernel::routing::NetPoint*> get_all_netpoints();
111 simgrid::kernel::routing::NetPoint* netpoint_by_name_or_null(std::string name);
113 simgrid::s4u::NetZone* get_netzone_root();
114 void set_netzone_root(s4u::NetZone* netzone);
116 simgrid::s4u::NetZone* netzone_by_name_or_null(const char* name);
118 /** @brief Retrieves all netzones of the type indicated by the template argument */
119 template <class T> std::vector<T*> filter_netzones_by_type()
122 filter_netzones_by_type_recursive(get_netzone_root(), &res);
126 /** Returns whether SimGrid was initialized yet -- mostly for internal use */
127 static bool is_initialized();
128 /** @brief set a configuration variable
130 * Do --help on any simgrid binary to see the list of currently existing configuration variables (see also @ref
134 * e->set_config("host/model:ptask_L07");
136 void set_config(std::string str);
139 simgrid::kernel::EngineImpl* pimpl;
140 static s4u::Engine* instance_;
142 //////////////// Deprecated functions
144 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::load_platform()") void loadPlatform(const char* platf)
146 load_platform(platf);
148 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_function()") void registerFunction(const char* name,
149 int (*code)(int, char**))
151 register_function(name, code);
153 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_default()") void registerDefault(int (*code)(int, char**))
155 register_default(code);
158 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_actor()") void registerFunction(const char* name)
160 register_actor<F>(name);
163 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_actor()") void registerFunction(const char* name, F code)
165 register_actor<F>(name, code);
168 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::load_deployment()") void loadDeployment(const char* deploy)
170 load_deployment(deploy);
172 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::host_by_name()") simgrid::s4u::Host* hostByName(std::string name)
174 return host_by_name(name);
176 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::host_by_name_or_null()") simgrid::s4u::Host* hostByNameOrNull(
179 return host_by_name_or_null(name);
181 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::storage_by_name()") simgrid::s4u::Storage* storageByName(
184 return storage_by_name(name);
186 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::storage_by_name_or_null()") simgrid::s4u::Storage* storageByNameOrNull(
189 return storage_by_name_or_null(name);
192 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_host_count()") size_t getHostCount() { return get_host_count(); }
193 XBT_ATTRIB_DEPRECATED_v322("Engine::getHostList() is deprecated in favor of Engine::get_all_hosts(). Please switch "
194 "before v3.22") void getHostList(std::vector<Host*>* whereTo);
195 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_hosts()") std::vector<Host*> getAllHosts()
197 return get_all_hosts();
199 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_link_count()") size_t getLinkCount() { return get_link_count(); }
200 XBT_ATTRIB_DEPRECATED_v322("Engine::getLinkList() is deprecated in favor of Engine::get_all_links(). Please "
201 "switch before v3.22") void getLinkList(std::vector<Link*>* list);
202 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_link_list()") std::vector<Link*> getAllLinks()
204 return get_all_links();
206 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_storages()") std::vector<Storage*> getAllStorages()
208 return get_all_storages();
210 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_clock()") static double getClock() { return get_clock(); }
211 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_netpoints()") void getNetpointList(
212 std::vector<simgrid::kernel::routing::NetPoint*>* list);
213 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::netpoint_by_name_or_null()")
214 simgrid::kernel::routing::NetPoint* getNetpointByNameOrNull(std::string name)
216 return netpoint_by_name_or_null(name);
218 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_netzone_root()") simgrid::s4u::NetZone* getNetRoot()
220 return get_netzone_root();
222 XBT_ATTRIB_DEPRECATED_v323(
223 "Please use Engine::netzone_by_name_or_null()") simgrid::s4u::NetZone* getNetzoneByNameOrNull(const char* name)
225 return netzone_by_name_or_null(name);
228 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::filter_netzones_by_type()") void getNetzoneByType(
229 std::vector<T*>* whereto)
231 filter_netzones_by_type_recursive(get_netzone_root(), whereto);
234 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_instance()") static s4u::Engine* getInstance()
236 return get_instance();
238 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::is_initialized()") static bool isInitialized()
240 return is_initialized();
242 XBT_ATTRIB_DEPRECATED_v323("Please use Engine::set_config()") void setConfig(std::string str) { set_config(str); }
245 /** Callback fired when the platform is created (ie, the xml file parsed),
246 * right before the actual simulation starts. */
247 extern XBT_PUBLIC xbt::signal<void()> on_platform_created;
249 /** Callback fired when the platform is about to be created
250 * (ie, after any configuration change and just before the resource creation) */
251 extern XBT_PUBLIC xbt::signal<void()> on_platform_creation;
253 /** Callback fired when the main simulation loop ends, just before the end of Engine::run() */
254 extern XBT_PUBLIC xbt::signal<void()> on_simulation_end;
256 /** Callback fired when the time jumps into the future */
257 extern XBT_PUBLIC xbt::signal<void(double)> on_time_advance;
259 /** Callback fired when the time cannot jump because of inter-actors deadlock */
260 extern XBT_PUBLIC xbt::signal<void(void)> on_deadlock;
262 template <class T> XBT_PRIVATE void filter_netzones_by_type_recursive(s4u::NetZone* current, std::vector<T*>* whereto)
264 for (auto const& elem : *(current->getChildren())) {
265 filter_netzones_by_type_recursive(elem, whereto);
266 if (elem == dynamic_cast<T*>(elem))
267 whereto->push_back(dynamic_cast<T*>(elem));
271 } // namespace simgrid::s4u
273 #endif /* SIMGRID_S4U_ENGINE_HPP */