X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/957da2691fc483ae05228fc6ef815af5944452af..HEAD:/src/surf/network_interface.hpp diff --git a/src/surf/network_interface.hpp b/src/surf/network_interface.hpp deleted file mode 100644 index d112d2be2e..0000000000 --- a/src/surf/network_interface.hpp +++ /dev/null @@ -1,211 +0,0 @@ -/* Copyright (c) 2004-2019. 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. */ - -#ifndef SURF_NETWORK_INTERFACE_HPP_ -#define SURF_NETWORK_INTERFACE_HPP_ - -#include "simgrid/kernel/resource/Model.hpp" -#include "simgrid/kernel/resource/Resource.hpp" -#include "simgrid/s4u/Link.hpp" -#include "src/kernel/lmm/maxmin.hpp" -#include "src/surf/PropertyHolder.hpp" - -#include -#include - -/*********** - * Classes * - ***********/ - -namespace simgrid { -namespace kernel { -namespace resource { -/********* - * Model * - *********/ - -/** @ingroup SURF_network_interface - * @brief SURF network model interface class - * @details A model is an object which handles the interactions between its Resources and its Actions - */ -class NetworkModel : public Model { -public: - static config::Flag cfg_tcp_gamma; - static config::Flag cfg_crosstraffic; - - explicit NetworkModel(Model::UpdateAlgo algo) : Model(algo) {} - NetworkModel(const NetworkModel&) = delete; - NetworkModel& operator=(const NetworkModel&) = delete; - ~NetworkModel() override; - - /** - * @brief Create a Link - * - * @param name The name of the Link - * @param bandwidth The initial bandwidth of the Link in bytes per second - * @param latency The initial latency of the Link in seconds - * @param policy The sharing policy of the Link - */ - virtual LinkImpl* create_link(const std::string& name, const std::vector& bandwidths, double latency, - s4u::Link::SharingPolicy policy) = 0; - - /** - * @brief Create a communication between two hosts. - * @details It makes calls to the routing part, and execute the communication between the two end points. - * - * @param src The source of the communication - * @param dst The destination of the communication - * @param size The size of the communication in bytes - * @param rate Allows to limit the transfer rate. Negative value means unlimited. - * @return The action representing the communication - */ - virtual Action* communicate(s4u::Host* src, s4u::Host* dst, double size, double rate) = 0; - - /** - * @brief Get the right multiplicative factor for the latency. - * @details Depending on the model, the effective latency when sending a message might be different from the - * theoretical latency of the link, in function of the message size. In order to account for this, this function gets - * this factor. - * - * @param size The size of the message. - * @return The latency factor. - */ - virtual double get_latency_factor(double size); - - /** - * @brief Get the right multiplicative factor for the bandwidth. - * @details Depending on the model, the effective bandwidth when sending a message might be different from the - * theoretical bandwidth of the link, in function of the message size. In order to account for this, this function - * gets this factor. - * - * @param size The size of the message. - * @return The bandwidth factor. - */ - virtual double get_bandwidth_factor(double size); - - /** - * @brief Get definitive bandwidth. - * @details It gives the minimum bandwidth between the one that would occur if no limitation was enforced, and the - * one arbitrary limited. - * @param rate The desired maximum bandwidth. - * @param bound The bandwidth with only the network taken into account. - * @param size The size of the message. - * @return The new bandwidth. - */ - virtual double get_bandwidth_constraint(double rate, double bound, double size); - double next_occuring_event_full(double now) override; - - LinkImpl* loopback_ = nullptr; -}; - -/************ - * Resource * - ************/ -/** @ingroup SURF_network_interface - * @brief SURF network link interface class - * @details A Link represents the link between two [hosts](@ref simgrid::surf::HostImpl) - */ -class LinkImpl : public Resource, public surf::PropertyHolder { - bool currently_destroying_ = false; - void* userdata_ = nullptr; - -protected: - LinkImpl(NetworkModel* model, const std::string& name, lmm::Constraint* constraint); - LinkImpl(const LinkImpl&) = delete; - LinkImpl& operator=(const LinkImpl&) = delete; - ~LinkImpl() override; - -public: - void destroy(); // Must be called instead of the destructor - void* get_data() { return userdata_; } - void set_data(void* d) { userdata_ = d; } - - /** @brief Public interface */ - s4u::Link piface_; - - /** @brief Get the bandwidth in bytes per second of current Link */ - virtual double get_bandwidth(); - - /** @brief Update the bandwidth in bytes per second of current Link */ - virtual void set_bandwidth(double value) = 0; - - /** @brief Get the latency in seconds of current Link */ - virtual double get_latency(); - - /** @brief Update the latency in seconds of current Link */ - virtual void set_latency(double value) = 0; - - /** @brief The sharing policy */ - virtual s4u::Link::SharingPolicy get_sharing_policy(); - - /** @brief Check if the Link is used */ - bool is_used() override; - - void turn_on() override; - void turn_off() override; - - void on_bandwidth_change(); - - virtual void - set_bandwidth_profile(kernel::profile::Profile* profile); /*< setup the profile file with bandwidth events - (peak speed changes due to external load). Trace must - contain percentages (value between 0 and 1). */ - virtual void - set_latency_profile(kernel::profile::Profile* profile); /*< setup the trace file with latency events (peak - latency changes due to external load). Trace must contain - absolute values */ - - Metric latency_ = {1.0, 0, nullptr}; - Metric bandwidth_ = {1.0, 0, nullptr}; - -}; - -/********** - * Action * - **********/ -/** @ingroup SURF_network_interface - * @brief SURF network action interface class - * @details A NetworkAction represents a communication between two [hosts](@ref simgrid::surf::HostImpl) - */ -class NetworkAction : public Action { -public: - /** @brief Constructor - * - * @param model The NetworkModel associated to this NetworkAction - * @param cost The cost of this NetworkAction in [TODO] - * @param failed [description] - */ - NetworkAction(Model* model, double cost, bool failed) : Action(model, cost, failed) {} - - /** - * @brief NetworkAction constructor - * - * @param model The NetworkModel associated to this NetworkAction - * @param cost The cost of this NetworkAction in bytes - * @param failed Actions can be created in a failed state - * @param var The lmm variable associated to this Action if it is part of a LMM component - */ - NetworkAction(Model* model, double cost, bool failed, lmm::Variable* var) : Action(model, cost, failed, var){}; - - void set_state(Action::State state) override; - virtual std::list links() const; - - double latency_ = {}; - double lat_current_ = {}; - double sharing_penalty_ = {}; - double rate_ = {}; -}; -} // namespace resource -} // namespace kernel -} // namespace simgrid - -/** @ingroup SURF_models - * @brief The network model - */ -XBT_PUBLIC_DATA simgrid::kernel::resource::NetworkModel* surf_network_model; - -#endif /* SURF_NETWORK_INTERFACE_HPP_ */ - -