--- /dev/null
+/* Copyright (c) 2019. The SimGrid Team. All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include "simgrid/kernel/resource/Action.hpp"
+#include "simgrid/kernel/resource/Model.hpp"
+#include "simgrid/kernel/resource/Resource.hpp"
+#include "simgrid/s4u/Io.hpp"
+#include "src/surf/PropertyHolder.hpp"
+#include "src/surf/surf_interface.hpp"
+
+#include <map>
+
+#ifndef DISK_INTERFACE_HPP_
+#define DISK_INTERFACE_HPP_
+
+/*********
+ * Model *
+ *********/
+
+XBT_PUBLIC_DATA simgrid::kernel::resource::DiskModel* surf_disk_model;
+
+namespace simgrid {
+namespace kernel {
+namespace resource {
+/***********
+ * Classes *
+ ***********/
+
+class DiskAction;
+
+/*********
+ * Model *
+ *********/
+class DiskModel : public kernel::resource::Model {
+public:
+ DiskModel();
+ DiskModel(const DiskModel&) = delete;
+ DiskModel& operator=(const DiskModel&) = delete;
+ ~DiskModel();
+
+ virtual DiskImpl* createDisk(const std::string& id, double read_bw, double write_bw) = 0;
+};
+
+/************
+ * Resource *
+ ************/
+class DiskImpl : public Resource, public surf::PropertyHolder {
+ bool currently_destroying_ = false;
+
+public:
+ DiskImpl(Model* model, const std::string& name, kernel::lmm::System* maxmin_system, double read_bw, double bwrite_bw);
+ DiskImpl(const DiskImpl&) = delete;
+ DiskImpl& operator=(const DiskImpl&) = delete;
+
+ ~DiskImpl() override;
+
+ /** @brief Public interface */
+ // FIXME s4u::Storage piface_;
+
+ /** @brief Check if the Storage is used (if an action currently uses its resources) */
+ bool is_used() override;
+
+ void apply_event(profile::Event* event, double value) override;
+
+ void turn_on() override;
+ void turn_off() override;
+
+ void destroy(); // Must be called instead of the destructor
+ virtual DiskAction* io_start(sg_size_t size, s4u::Io::OpType type) = 0;
+ virtual DiskAction* read(sg_size_t size) = 0;
+ virtual DiskAction* write(sg_size_t size) = 0;
+
+ lmm::Constraint* constraint_write_; /* Constraint for maximum write bandwidth*/
+ lmm::Constraint* constraint_read_; /* Constraint for maximum write bandwidth*/
+};
+
+/**********
+ * Action *
+ **********/
+
+class DiskAction : public Action {
+public:
+ static xbt::signal<void(DiskAction const&, Action::State, Action::State)> on_state_change;
+
+ DiskAction(Model* model, double cost, bool failed, DiskImpl* disk, s4u::Io::OpType type)
+ : Action(model, cost, failed), type_(type), disk_(disk){};
+
+ /**
+ * @brief diskAction constructor
+ *
+ * @param model The StorageModel associated to this DiskAction
+ * @param cost The cost of this DiskAction in bytes
+ * @param failed [description]
+ * @param var The lmm variable associated to this DiskAction if it is part of a LMM component
+ * @param storage The Storage associated to this DiskAction
+ * @param type [description]
+ */
+ DiskAction(kernel::resource::Model* model, double cost, bool failed, kernel::lmm::Variable* var, DiskImpl* disk,
+ s4u::Io::OpType type)
+ : Action(model, cost, failed, var), type_(type), disk_(disk){};
+
+ void set_state(simgrid::kernel::resource::Action::State state) override;
+
+ s4u::Io::OpType type_;
+ DiskImpl* disk_;
+};
+
+} // namespace resource
+} // namespace kernel
+} // namespace simgrid
+#endif /* DISK_INTERFACE_HPP_ */
