#ifndef SIMGRID_S4U_HOST_HPP
#define SIMGRID_S4U_HOST_HPP
+#include <string>
+
#include <boost/unordered_map.hpp>
-#include <vector>
-#include "xbt/base.h"
-#include "simgrid/simix.h"
+#include "xbt/Extendable.hpp"
+#include "xbt/dict.h"
+#include "xbt/signal.hpp"
+#include "xbt/string.hpp"
+#include "xbt/swag.h"
+
+#include "simgrid/forward.h"
+#include "simgrid/s4u/forward.hpp"
namespace simgrid {
-namespace s4u {
-class Actor;
-class Storage;
-class File;
+namespace xbt {
+ extern template class XBT_PUBLIC() Extendable<simgrid::s4u::Host>;
+}
+namespace s4u {
-/** @brief Simulated machine that can host some actors
+/** @ingroup s4u_api
+ *
+ * @tableofcontents
*
- * It represents some physical resource with computing and networking capabilities.
+ * An host represents some physical resource with computing and networking capabilities.
*
* All hosts are automatically created during the call of the method
- * @link{simgrid::s4u::Engine::loadPlatform()}.
+ * @ref simgrid::s4u::Engine::loadPlatform().
* You cannot create a host yourself.
*
- * You can retrieve a particular host using @link{simgrid::s4u::Host.byName()},
- * and actors can retrieve the host on which they run using @link{simgrid::s4u::Host.current()}.
+ * You can retrieve a particular host using simgrid::s4u::Host::byName()
+ * and actors can retrieve the host on which they run using simgrid::s4u::Host::current().
*/
-XBT_PUBLIC_CLASS Host {
- friend Actor;
- friend File;
-private:
- Host(const char *name);
-protected:
- ~Host();
+XBT_PUBLIC_CLASS Host :
+ public simgrid::xbt::Extendable<Host> {
+
public:
- /** Retrieves an host from its name. */
- static s4u::Host *byName(std::string name);
- /** Retrieves the host on which the current actor is running */
- static s4u::Host *current();
-
- const char* name();
-
- /** Turns that host on if it was previously off
- *
- * All actors on that host which were marked autorestart will be restarted automatically.
- * This call does nothing if the host is already on.
- */
- void turnOn();
- /** Turns that host off. All actors are forcefully stopped. */
- void turnOff();
- /** Returns if that host is currently up and running */
- bool isOn();
-
-
- /** Allows to store user data on that host */
- void set_userdata(void *data) {p_userdata = data;}
- /** Retrieves the previously stored data */
- void* userdata() {return p_userdata;}
-
- /** Get an associative list [mount point]->[Storage] off all local mount points.
- *
- * This is defined in the platform file, and cannot be modified programatically (yet).
- *
- * Do not change the returned value in any way.
- */
- boost::unordered_map<std::string, Storage&> &mountedStorages();
-private:
- boost::unordered_map<std::string, Storage&> *mounts = NULL; // caching
+ explicit Host(const char *name);
+ /** Host destruction logic */
protected:
- sg_host_t inferior() {return p_inferior;}
+ virtual ~Host();
+
private:
- void*p_userdata=NULL;
- sg_host_t p_inferior;
- static boost::unordered_map<std::string, s4u::Host *> *hosts;
+ bool currentlyDestroying_ = false;
+public:
+ void destroy();
+ // No copy/move
+ Host(Host const&) = delete;
+ Host& operator=(Host const&) = delete;
+
+ /** Retrieves an host from its name, or return nullptr */
+ static Host* by_name_or_null(const char* name);
+ /** Retrieves an host from its name, or return nullptr */
+ static Host* by_name_or_null(std::string name);
+ /** Retrieves an host from its name, or die */
+ static s4u::Host *by_name(std::string name);
+ /** Retrieves the host on which the current actor is running */
+ static s4u::Host *current();
+
+ simgrid::xbt::string const& name() const { return name_; }
+ const char* cname() { return name_.c_str(); }
+
+ /** Turns that host on if it was previously off
+ *
+ * All actors on that host which were marked autorestart will be restarted automatically.
+ * This call does nothing if the host is already on.
+ */
+ void turnOn();
+ /** Turns that host off. All actors are forcefully stopped. */
+ void turnOff();
+ /** Returns if that host is currently up and running */
+ bool isOn();
+ /** Returns if that host is currently down and offline */
+ bool isOff() { return !isOn(); }
+
+ double speed();
+ int coreCount();
+ xbt_dict_t properties();
+ const char*property(const char*key);
+ void setProperty(const char*key, const char *value);
+ xbt_swag_t processes();
+ double getPstateSpeedCurrent();
+ double getPstateSpeed(int pstate_index);
+ int pstatesCount() const;
+ void setPstate(int pstate_index);
+ int pstate();
+ xbt_dict_t mountedStoragesAsDict(); // HACK
+ std::vector<const char*> attachedStorages();
+
+ /** Get an associative list [mount point]->[Storage] of all local mount points.
+ *
+ * This is defined in the platform file, and cannot be modified programatically (yet).
+ */
+ boost::unordered_map<std::string, Storage*> const &mountedStorages();
+
+ void routeTo(Host * dest, std::vector<Link*> * links, double* latency);
+ void routeTo(Host * dest, std::vector<surf::LinkImpl*> * links, double* latency);
+
+private:
+ simgrid::xbt::string name_ = "noname";
+ boost::unordered_map<std::string, Storage*> *mounts = nullptr; // caching
+
+public:
+ // TODO, this could be a unique_ptr
+ surf::HostImpl* pimpl_ = nullptr;
+ /** DO NOT USE DIRECTLY (@todo: these should be protected, once our code is clean) */
+ surf::Cpu *pimpl_cpu = nullptr;
+ /** DO NOT USE DIRECTLY (@todo: these should be protected, once our code is clean) */
+ kernel::routing::NetPoint* pimpl_netpoint = nullptr;
+
+ /*** Called on each newly created object */
+ static simgrid::xbt::signal<void(Host&)> onCreation;
+ /*** Called just before destructing an object */
+ static simgrid::xbt::signal<void(Host&)> onDestruction;
+ /*** Called when the machine is turned on or off */
+ static simgrid::xbt::signal<void(Host&)> onStateChange;
+ /*** Called when the speed of the machine is changed
+ * (either because of a pstate switch or because of an external load event coming from the profile) */
+ static simgrid::xbt::signal<void(Host&)> onSpeedChange;
};
}} // namespace simgrid::s4u
+extern int USER_HOST_LEVEL;
+
#endif /* SIMGRID_S4U_HOST_HPP */
#if 0
package org.simgrid.msg;
-import org.simgrid.msg.Storage;
-
-/*
-Host jacquelin;
-
-try {
- jacquelin = Host.getByName("Jacquelin");
-} catch(HostNotFoundException e) {
- System.err.println(e.toString());
-}
-...
-\endverbatim
- *
- */
public class Host {
- /**
- * This static method returns all of the hosts of the installed platform.
- *
- * @return An array containing all the hosts installed.
- *
- */
- public native static Host[] all();
-
- /**
- * This static method sets a mailbox to receive in asynchronous mode.
- *
- * All messages sent to this mailbox will be transferred to
- * the receiver without waiting for the receive call.
- * The receive call will still be necessary to use the received data.
- * If there is a need to receive some messages asynchronously, and some not,
- * two different mailboxes should be used.
- *
- * @param mailboxName The name of the mailbox
- */
- public static native void setAsyncMailbox(String mailboxName);
-
- /**
- * This method returns the number of tasks currently running on a host.
- * The external load (comming from an availability trace) is not taken in account.
- *
- * @return The number of tasks currently running on a host.
- */
- public native int getLoad();
-
- /**
- * This method returns the speed of the processor of a host,
- * regardless of the current load of the machine.
- *
- * @return The speed of the processor of the host in flops.
- *
- */
- public native double getSpeed();
-
- /**
- * This method returns the number of core of a host.
- *
- * @return The speed of the processor of the host in flops.
- *
- */
- public native double getCoreNumber();
-
- /**
- * Returns the value of a given host property (set from the platform file).
- */
- public native String getProperty(String name);
-
- /**
- * Change the value of a given host property.
- */
- public native void setProperty(String name, String value);
-
- /** This methods returns the list of storages attached to an host
- * @return An array containing all storages (name) attached to the host
- */
- public native String[] getAttachedStorage();
+ /**
+ * This static method returns all of the hosts of the installed platform.
+ *
+ * @return An array containing all the hosts installed.
+ *
+ */
+ public native static Host[] all();
+
+ /**
+ * This static method sets a mailbox to receive in asynchronous mode.
+ *
+ * All messages sent to this mailbox will be transferred to
+ * the receiver without waiting for the receive call.
+ * The receive call will still be necessary to use the received data.
+ * If there is a need to receive some messages asynchronously, and some not,
+ * two different mailboxes should be used.
+ *
+ * @param mailboxName The name of the mailbox
+ */
+ public static native void setAsyncMailbox(String mailboxName);
+
+ /**
+ * This method returns the number of tasks currently running on a host.
+ * The external load (coming from an availability trace) is not taken in account.
+ *
+ * @return The number of tasks currently running on a host.
+ */
+ public native int getLoad();
+
+
+ /** This methods returns the list of storages attached to an host
+ * @return An array containing all storages (name) attached to the host
+ */
+ public native String[] getAttachedStorage();
}
