+/** @brief Host datatype.
+ @ingroup m_host_management
+
+ A <em>location</em> (or <em>host</em>) is any possible place where an actor may run. Thus it is represented as a
+ <em>physical resource with computing capabilities</em>, some <em>mailboxes</em> to enable running actors to
+ communicate with remote ones, and some <em>private data</em> that can be only accessed by local actors.
+ */
+
+XBT_PUBLIC sg_host_t* sg_host_list();
+
+/** \ingroup m_host_management
+ * \brief Return the current number of hosts.
+ */
+XBT_PUBLIC size_t sg_host_count();
+
+/** \ingroup m_host_management
+ * \brief Return a dynar containing all the hosts declared at a given point of time (including VMs)
+ * \remark The host order in the returned array is generally different from the host creation/declaration order in the
+ * XML platform (we use a hash table internally)
+ */
+XBT_PUBLIC xbt_dynar_t sg_hosts_as_dynar();
+
+XBT_PUBLIC size_t sg_host_extension_create(void (*deleter)(void*));
+XBT_PUBLIC void* sg_host_extension_get(sg_host_t host, size_t rank);
+
+/** \ingroup m_host_management
+ * \brief Finds a sg_host_t using its name.
+ *
+ * This is a name directory service
+ * \param name the name of an host.
+ * \return the corresponding host
+ */
+XBT_PUBLIC sg_host_t sg_host_by_name(const char* name);
+
+/** \ingroup m_host_management
+ *
+ * \brief Return the name of the #sg_host_t. */
+XBT_PUBLIC const char* sg_host_get_name(sg_host_t host);
+
+// ========== User Data ==============
+/** \ingroup m_host_management
+ *
+ * \brief Return the user data of a #sg_host_t.
+ *
+ * This functions returns the user data associated to \a host if it is possible.
+ */
+XBT_PUBLIC void* sg_host_user(sg_host_t host);
+/** \ingroup m_host_management
+ *
+ * \brief Set the user data of a #sg_host_t.
+ *
+ * This functions attach \a data to \a host if it is possible.
+ */
+XBT_PUBLIC void sg_host_user_set(sg_host_t host, void* userdata);
+XBT_PUBLIC void sg_host_user_destroy(sg_host_t host);
+
+// ========= storage related functions ============
+/** \ingroup m_host_management
+ * \brief Return the list of mount point names on an host.
+ * \param host a host
+ * \return a dict containing all mount point on the host (mount_name => sg_storage_t)
+ */
+XBT_PUBLIC xbt_dict_t sg_host_get_mounted_storage_list(sg_host_t host);
+
+/** \ingroup m_host_management
+ * \brief Return the list of storages attached to an host.
+ * \param host a host
+ * \return a dynar containing all storages (name) attached to the host
+ */
+XBT_PUBLIC xbt_dynar_t sg_host_get_attached_storage_list(sg_host_t host);
+
+// =========== user-level functions ===============
+/** \ingroup m_host_management
+ * \brief Return the speed of the processor (in flop/s), regardless of the current load on the machine.
+ */
+XBT_PUBLIC double sg_host_speed(sg_host_t host);
+XBT_PUBLIC double sg_host_get_pstate_speed(sg_host_t host, int pstate_index);
+
+XBT_PUBLIC double sg_host_get_available_speed(sg_host_t host);
+
+XBT_PUBLIC int sg_host_core_count(sg_host_t host);
+
+/** \ingroup m_process_management
+ * \brief Return the location on which a process is running.
+ * \return the sg_host_t corresponding to the location on which \a process is running.
+ */
+XBT_PUBLIC sg_host_t sg_host_self();
+
+XBT_PUBLIC const char* sg_host_self_get_name();
+
+/** \ingroup m_host_management
+ * \brief Return the total count of pstates defined for a host. See also @ref plugin_energy.
+ *
+ * \param host host to test
+ */
+XBT_PUBLIC int sg_host_get_nb_pstates(sg_host_t host);
+
+XBT_PUBLIC int sg_host_get_pstate(sg_host_t host);
+XBT_PUBLIC void sg_host_set_pstate(sg_host_t host, int pstate);
+
+XBT_PUBLIC void sg_host_turn_on(sg_host_t host);
+XBT_PUBLIC void sg_host_turn_off(sg_host_t host);
+XBT_PUBLIC int sg_host_is_on(sg_host_t host);
+XBT_PUBLIC int sg_host_is_off(sg_host_t host);
+
+/** \ingroup m_host_management
+ * \brief Returns a xbt_dict_t consisting of the list of properties assigned to this host
+ *
+ * \param host a host
+ * \return a dict containing the properties
+ */
+XBT_PUBLIC xbt_dict_t sg_host_get_properties(sg_host_t host);
+
+/** \ingroup m_host_management
+ * \brief Returns the value of a given host property
+ *
+ * \param host a host
+ * \param name a property name
+ * \return value of a property (or nullptr if property not set)
+ */
+XBT_PUBLIC const char* sg_host_get_property_value(sg_host_t host, const char* name);
+
+/** \ingroup m_host_management
+ * \brief Change the value of a given host property
+ *
+ * \param host a host
+ * \param name a property name
+ * \param value what to change the property to
+ */
+XBT_PUBLIC void sg_host_set_property_value(sg_host_t host, const char* name, const char* value);