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[S4U] Mark s4u::Engine constructor as explicit
[simgrid.git] / include / simgrid / s4u / Engine.hpp
index bc7d410..eabfef2 100644 (file)
@@ -24,125 +24,248 @@ namespace s4u {
  *
  * This class is an interface to the simulation engine.
  */
-XBT_PUBLIC_CLASS Engine
-{
+class XBT_PUBLIC Engine {
 public:
   /** Constructor, taking the command line parameters of your main function */
-  Engine(int* argc, char** argv);
+  explicit Engine(int* argc, char** argv);
+  /** Currently, only one instance is allowed to exist. This is why you can't copy or move it */
+  Engine(const Engine&) = delete;
+  Engine(Engine&&)      = delete;
 
   ~Engine();
   /** Finalize the default engine and all its dependencies */
   static void shutdown();
 
+  /** @brief Run the simulation */
+  void run();
+
+  /** @brief Retrieve the simulation time */
+  static double get_clock();
+  /** @brief Retrieve the engine singleton */
+  static s4u::Engine* get_instance();
+
   /** @brief Load a platform file describing the environment
    *
    * The environment is either a XML file following the simgrid.dtd formalism, or a lua file.
    * Some examples can be found in the directory examples/platforms.
    */
-  void loadPlatform(const char* platf);
+  void load_platform(const char* platf);
 
   /** Registers the main function of an actor that will be launched from the deployment file */
-  void registerFunction(const char* name, int (*code)(int, char**));
+  void register_function(const char* name, int (*code)(int, char**));
+  // FIXME: provide a register_function(std::string, void (*code)(int, char**)) and deprecate the int returning one
+  // FIXME: provide a register_function(std::string, std::vector<std::string>)
 
   /** Registers a function as the default main function of actors
    *
    * It will be used as fallback when the function requested from the deployment file was not registered.
-   * It is used for trace-based simulations (see examples/msg/actions).
+   * It is used for trace-based simulations (see examples/s4u/replay-comms and similar).
    */
-  void registerDefault(int (*code)(int, char**));
+  void register_default(int (*code)(int, char**));
+
+  template <class F> void register_actor(const char* name)
+  {
+    simgrid::simix::register_function(name, [](std::vector<std::string> args) {
+      return simgrid::simix::ActorCode([args] {
+        F code(std::move(args));
+        code();
+      });
+    });
+  }
+
+  template <class F> void register_actor(const char* name, F code)
+  {
+    simgrid::simix::register_function(name, [code](std::vector<std::string> args) {
+      return simgrid::simix::ActorCode([code, args] { code(std::move(args)); });
+    });
+  }
 
   /** @brief Load a deployment file and launch the actors that it contains */
-  void loadDeployment(const char* deploy);
+  void load_deployment(const char* deploy);
 
 protected:
   friend s4u::Host;
-  void addHost(std::string name, simgrid::s4u::Host * host);
-  void delHost(std::string name);
+  friend s4u::Storage;
+  friend kernel::routing::NetPoint;
+  friend kernel::routing::NetZoneImpl;
+  void host_register(std::string name, simgrid::s4u::Host* host);
+  void host_unregister(std::string name);
+  void storage_register(std::string name, simgrid::s4u::Storage* storage);
+  void storage_unregister(std::string name);
+  void netpoint_register(simgrid::kernel::routing::NetPoint* card);
+  void netpoint_unregister(simgrid::kernel::routing::NetPoint* card);
 
 public:
-  simgrid::s4u::Host* hostByName(std::string name);
-  simgrid::s4u::Host* hostByNameOrNull(std::string name);
-  size_t getHostCount();
-  void getHostList(std::vector<Host*> * whereTo);
-  std::vector<Host*> getHostList();
-  size_t getLinkCount();
-  void getLinkList(std::vector<Link*> * list);
-
-  /** @brief Run the simulation */
-  void run();
+  size_t get_host_count();
+  std::vector<Host*> get_all_hosts();
+  std::vector<Host*> get_filtered_hosts(std::function<bool(Host*)> filter);
+  simgrid::s4u::Host* host_by_name(std::string name);
+  simgrid::s4u::Host* host_by_name_or_null(std::string name);
 
-  /** @brief Retrieve the simulation time */
-  static double getClock();
+  size_t get_link_count();
+  std::vector<Link*> get_all_links();
 
-  /** @brief Retrieve the engine singleton */
-  static s4u::Engine* getInstance();
+  size_t get_storage_count();
+  std::vector<Storage*> get_all_storages();
+  simgrid::s4u::Storage* storage_by_name(std::string name);
+  simgrid::s4u::Storage* storage_by_name_or_null(std::string name);
 
-  /** @brief Retrieve the root netzone, containing all others */
-  simgrid::s4u::NetZone* getNetRoot();
+  std::vector<simgrid::kernel::routing::NetPoint*> get_all_netpoints();
+  simgrid::kernel::routing::NetPoint* netpoint_by_name_or_null(std::string name);
 
-  /** @brief Retrieve the netzone of the given name (or nullptr if not found) */
-  simgrid::s4u::NetZone* getNetzoneByNameOrNull(const char* name);
+  simgrid::s4u::NetZone* get_netzone_root();
+  void set_netzone_root(s4u::NetZone* netzone);
 
-  /** @brief Retrieves all netzones of the same type than the subtype of the whereto vector */
-  template <class T> void getNetzoneByType(std::vector<T*> * whereto) { netzoneByTypeRecursive(getNetRoot(), whereto); }
-  /** @brief Retrieve the netcard of the given name (or nullptr if not found) */
-  simgrid::kernel::routing::NetPoint* getNetpointByNameOrNull(std::string name);
-  void getNetpointList(std::vector<simgrid::kernel::routing::NetPoint*> * list);
-  void netpointRegister(simgrid::kernel::routing::NetPoint * card);
-  void netpointUnregister(simgrid::kernel::routing::NetPoint * card);
+  simgrid::s4u::NetZone* netzone_by_name_or_null(const char* name);
 
-  template <class F> void registerFunction(const char* name)
+  /** @brief Retrieves all netzones of the type indicated by the template argument */
+  template <class T> std::vector<T*> filter_netzones_by_type()
   {
-    simgrid::simix::registerFunction(name, [](std::vector<std::string> args) {
-      return simgrid::simix::ActorCode([args] {
-        F code(std::move(args));
-        code();
-      });
-    });
-  }
-
-  template <class F> void registerFunction(const char* name, F code)
-  {
-    simgrid::simix::registerFunction(name, [code](std::vector<std::string> args) {
-      return simgrid::simix::ActorCode([code, args] { code(std::move(args)); });
-    });
+    std::vector<T*> res;
+    filter_netzones_by_type_recursive(get_netzone_root(), &res);
+    return res;
   }
 
   /** Returns whether SimGrid was initialized yet -- mostly for internal use */
-  static bool isInitialized();
-
+  static bool is_initialized();
   /** @brief set a configuration variable
    *
-   * Do --help on any simgrid binary to see the list of currently existing configuration variables (see @ref options).
+   * Do --help on any simgrid binary to see the list of currently existing configuration variables (see also @ref
+   * options).
    *
    * Example:
-   * e->setConfig("host/model","ptask_L07");
+   * e->set_config("host/model:ptask_L07");
    */
-  void setConfig(std::string str);
-
-  simgrid::kernel::EngineImpl* pimpl;
+  void set_config(std::string str);
 
 private:
+  simgrid::kernel::EngineImpl* pimpl;
   static s4u::Engine* instance_;
+
+  //////////////// Deprecated functions
+public:
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::load_platform()") void loadPlatform(const char* platf)
+  {
+    load_platform(platf);
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_function()") void registerFunction(const char* name,
+                                                                                             int (*code)(int, char**))
+  {
+    register_function(name, code);
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_default()") void registerDefault(int (*code)(int, char**))
+  {
+    register_default(code);
+  }
+  template <class F>
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_actor()") void registerFunction(const char* name)
+  {
+    register_actor<F>(name);
+  }
+  template <class F>
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::register_actor()") void registerFunction(const char* name, F code)
+  {
+    register_actor<F>(name, code);
+  }
+
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::load_deployment()") void loadDeployment(const char* deploy)
+  {
+    load_deployment(deploy);
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::host_by_name()") simgrid::s4u::Host* hostByName(std::string name)
+  {
+    return host_by_name(name);
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::host_by_name_or_null()") simgrid::s4u::Host* hostByNameOrNull(
+      std::string name)
+  {
+    return host_by_name_or_null(name);
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::storage_by_name()") simgrid::s4u::Storage* storageByName(
+      std::string name)
+  {
+    return storage_by_name(name);
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::storage_by_name_or_null()") simgrid::s4u::Storage* storageByNameOrNull(
+      std::string name)
+  {
+    return storage_by_name_or_null(name);
+  }
+
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_host_count()") size_t getHostCount() { return get_host_count(); }
+  XBT_ATTRIB_DEPRECATED_v322("Engine::getHostList() is deprecated in favor of Engine::get_all_hosts(). Please switch "
+                             "before v3.22") void getHostList(std::vector<Host*>* whereTo);
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_hosts()") std::vector<Host*> getAllHosts()
+  {
+    return get_all_hosts();
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_link_count()") size_t getLinkCount() { return get_link_count(); }
+  XBT_ATTRIB_DEPRECATED_v322("Engine::getLinkList() is deprecated in favor of Engine::get_all_links(). Please "
+                             "switch before v3.22") void getLinkList(std::vector<Link*>* list);
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_link_list()") std::vector<Link*> getAllLinks()
+  {
+    return get_all_links();
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_storages()") std::vector<Storage*> getAllStorages()
+  {
+    return get_all_storages();
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_clock()") static double getClock() { return get_clock(); }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_all_netpoints()") void getNetpointList(
+      std::vector<simgrid::kernel::routing::NetPoint*>* list);
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::netpoint_by_name_or_null()")
+      simgrid::kernel::routing::NetPoint* getNetpointByNameOrNull(std::string name)
+  {
+    return netpoint_by_name_or_null(name);
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_netzone_root()") simgrid::s4u::NetZone* getNetRoot()
+  {
+    return get_netzone_root();
+  }
+  XBT_ATTRIB_DEPRECATED_v323(
+      "Please use Engine::netzone_by_name_or_null()") simgrid::s4u::NetZone* getNetzoneByNameOrNull(const char* name)
+  {
+    return netzone_by_name_or_null(name);
+  }
+  template <class T>
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::filter_netzones_by_type()") void getNetzoneByType(
+      std::vector<T*>* whereto)
+  {
+    filter_netzones_by_type_recursive(get_netzone_root(), whereto);
+  }
+
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::get_instance()") static s4u::Engine* getInstance()
+  {
+    return get_instance();
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::is_initialized()") static bool isInitialized()
+  {
+    return is_initialized();
+  }
+  XBT_ATTRIB_DEPRECATED_v323("Please use Engine::set_config()") void setConfig(std::string str) { set_config(str); }
 };
 
 /** Callback fired when the platform is created (ie, the xml file parsed),
  * right before the actual simulation starts. */
-extern XBT_PUBLIC(xbt::signal<void()>) onPlatformCreated;
+extern XBT_PUBLIC xbt::signal<void()> on_platform_created;
+
+/** Callback fired when the platform is about to be created
+ * (ie, after any configuration change and just before the resource creation) */
+extern XBT_PUBLIC xbt::signal<void()> on_platform_creation;
 
-/** Callback fired when the main simulation loop ends, just before MSG_run (or similar) ends */
-extern XBT_PUBLIC(xbt::signal<void()>) onSimulationEnd;
+/** Callback fired when the main simulation loop ends, just before the end of Engine::run() */
+extern XBT_PUBLIC xbt::signal<void()> on_simulation_end;
 
 /** Callback fired when the time jumps into the future */
-extern XBT_PUBLIC(xbt::signal<void(double)>) onTimeAdvance;
+extern XBT_PUBLIC xbt::signal<void(double)> on_time_advance;
 
 /** Callback fired when the time cannot jump because of inter-actors deadlock */
-extern XBT_PUBLIC(xbt::signal<void(void)>) onDeadlock;
+extern XBT_PUBLIC xbt::signal<void(void)> on_deadlock;
 
-template <class T> XBT_PRIVATE void netzoneByTypeRecursive(s4u::NetZone* current, std::vector<T*>* whereto)
+template <class T> XBT_PRIVATE void filter_netzones_by_type_recursive(s4u::NetZone* current, std::vector<T*>* whereto)
 {
   for (auto const& elem : *(current->getChildren())) {
-    netzoneByTypeRecursive(elem, whereto);
+    filter_netzones_by_type_recursive(elem, whereto);
     if (elem == dynamic_cast<T*>(elem))
       whereto->push_back(dynamic_cast<T*>(elem));
   }