1 /* Copyright (c) 2004-2018. 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_KERNEL_RESOURCE_RESOURCE_HPP
7 #define SIMGRID_KERNEL_RESOURCE_RESOURCE_HPP
9 #include "src/surf/surf_interface.hpp"
15 /** @ingroup SURF_interface
16 * @brief SURF resource interface class
17 * @details This is the ancestor class of every resources in SimGrid, such as links, CPU or storage
19 class XBT_PUBLIC Resource {
22 * @brief Constructor of LMM Resources
24 * @param model Model associated to this Resource
25 * @param name The name of the Resource
26 * @param constraint The lmm constraint associated to this Resource if it is part of a LMM component
28 Resource(Model* model, const std::string& name, lmm::Constraint* constraint);
32 /** @brief Get the Model of the current Resource */
35 /** @brief Get the name of the current Resource */
36 const std::string& getName() const;
37 /** @brief Get the name of the current Resource */
38 const char* getCname() const;
40 bool operator==(const Resource& other) const;
43 * @brief Apply an event of external load event to that resource
45 * @param event What happened
48 virtual void apply_event(tmgr_trace_event_t event, double value) = 0;
50 /** @brief Check if the current Resource is used (if it currently serves an action) */
51 virtual bool isUsed() = 0;
53 /** @brief returns the current load (in flops per second, byte per second or similar) */
54 virtual double getLoad();
56 /** @brief Check if the current Resource is active */
57 virtual bool isOn() const;
58 /** @brief Check if the current Resource is shut down */
59 virtual bool isOff() const;
60 /** @brief Turn on the current Resource */
61 virtual void turnOn();
62 /** @brief Turn off the current Resource */
63 virtual void turnOff();
71 /** @brief Get the lmm constraint associated to this Resource if it is part of a LMM component (or null if none) */
72 kernel::lmm::Constraint* constraint() const;
75 kernel::lmm::Constraint* const constraint_ = nullptr;
79 double peak; /**< The peak of the metric, ie its max value */
80 double scale; /**< Current availability of the metric according to the traces, in [0,1] */
81 tmgr_trace_event_t event; /**< The associated trace event associated to the metric */
84 } // namespace resource
86 } // namespace simgrid
89 template <> class hash<simgrid::kernel::resource::Resource> {
91 std::size_t operator()(const simgrid::kernel::resource::Resource& r) const
93 return (std::size_t)xbt_str_hash(r.getCname());