-
- /**
- * @brief Create a Link
- *
- * @param name The name of the Link
- * @param bw_initial The initial bandwidth of the Link in bytes per second
- * @param bw_trace The trace associated to the Link bandwidth
- * @param lat_initial The initial latency of the Link in seconds
- * @param lat_trace The trace associated to the Link latency
- * @param initiallyOn The initial Link (state)[e_surf_resource_state_t]
- * @param state_trace The trace associated to the Link (state)[e_surf_resource_state_t]
- * @param policy The sharing policy of the Link
- * @param properties Dictionary of properties associated to this Resource
- * @return The created Link
- */
- virtual Link* createLink(const char *name,
- double bw_initial,
- tmgr_trace_t bw_trace,
- double lat_initial,
- tmgr_trace_t lat_trace,
- int initiallyOn,
- tmgr_trace_t state_trace,
- e_surf_link_sharing_policy_t policy,
- xbt_dict_t properties)=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(NetCard *src, NetCard *dst,
- double size, double rate)=0;
-
- /** @brief Function pointer to the function to use to solve the lmm_system_t
- *
- * @param system The lmm_system_t to solve
- */
- void (*f_networkSolve)(lmm_system_t) = lmm_solve;
-
- /**
- * @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 latencyFactor(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 bandwidthFactor(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 bandwidthConstraint(double rate, double bound, double size);
- double shareResourcesFull(double now);
-};
-
-/************
- * Resource *
- ************/
- /** @ingroup SURF_network_interface
- * @brief SURF network link interface class
- * @details A Link represents the link between two [hosts](\ref Host)
- */
-class Link :
- public simgrid::surf::Resource,
- public simgrid::surf::PropertyHolder {
-public:
- /**
- * @brief Link constructor
- *
- * @param model The NetworkModel associated to this Link
- * @param name The name of the Link
- * @param props Dictionary of properties associated to this Link
- */
- Link(simgrid::surf::NetworkModel *model, const char *name, xbt_dict_t props);
-
- /**
- * @brief Link constructor
- *
- * @param model The NetworkModel associated to this Link
- * @param name The name of the Link
- * @param props Dictionary of properties associated to this Link
- * @param constraint The lmm constraint associated to this Cpu if it is part of a LMM component
- * @param state_trace [TODO]
- */
- Link(simgrid::surf::NetworkModel *model, const char *name, xbt_dict_t props,
- lmm_constraint_t constraint,
- tmgr_trace_t state_trace);
-
- /* Link destruction logic */
- /**************************/
-protected:
- ~Link();
-public:
- void destroy(); // Must be called instead of the destructor
-private:
- bool currentlyDestroying_ = false;
-
-public:
- /** @brief Callback signal fired when a new Link is created.
- * Signature: void(Link*) */
- static simgrid::xbt::signal<void(simgrid::surf::Link*)> onCreation;
-
- /** @brief Callback signal fired when a Link is destroyed.
- * Signature: void(Link*) */
- static simgrid::xbt::signal<void(simgrid::surf::Link*)> onDestruction;
-
- /** @brief Callback signal fired when the state of a Link changes (when it is turned on or off)
- * Signature: `void(Link*)` */
- static simgrid::xbt::signal<void(simgrid::surf::Link*)> onStateChange;
-
-
- /** @brief Get the bandwidth in bytes per second of current Link */
- virtual double getBandwidth();
-
- /** @brief Update the bandwidth in bytes per second of current Link */
- virtual void updateBandwidth(double value)=0;
-
- /** @brief Get the latency in seconds of current Link */
- virtual double getLatency();
-
- /** @brief Update the latency in seconds of current Link */
- virtual void updateLatency(double value)=0;
-
- /** @brief The sharing policy is a @{link e_surf_link_sharing_policy_t::EType} (0: FATPIPE, 1: SHARED, 2: FULLDUPLEX) */
- virtual int sharingPolicy();
-
- /** @brief Check if the Link is used */
- bool isUsed() override;
-
- void turnOn() override;
- void turnOff() override;
-
- tmgr_trace_iterator_t m_stateEvent = NULL;
- s_surf_metric_t m_latency = {1.0,0,NULL};
- s_surf_metric_t m_bandwidth = {1.0,0,NULL};
-
- /* User data */
-public:
- void *getData() { return userData;}
- void setData(void *d) { userData=d;}
-private:
- void *userData = NULL;
-
- /* List of all links */
-private:
- static boost::unordered_map<std::string, Link *> *links;
-public:
- static Link *byName(const char* name);
- static int linksCount();
- static Link **linksList();
- static void linksExit();
-};
-
-/**********
- * Action *
- **********/
-/** @ingroup SURF_network_interface
- * @brief SURF network action interface class
- * @details A NetworkAction represents a communication between two [hosts](\ref Host)
- */
-class NetworkAction : public simgrid::surf::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(simgrid::surf::Model *model, double cost, bool failed)
- : simgrid::surf::Action(model, cost, failed) {}
-
- /**
- * @brief NetworkAction constructor
- *
- * @param model The NetworkModel associated to this NetworkAction
- * @param cost The cost of this NetworkAction in [TODO]
- * @param failed [description]
- * @param var The lmm variable associated to this Action if it is part of a
- * LMM component
- */
- NetworkAction(simgrid::surf::Model *model, double cost, bool failed, lmm_variable_t var)
- : simgrid::surf::Action(model, cost, failed, var) {};
-
- void setState(e_surf_action_state_t state);
-
-#ifdef HAVE_LATENCY_BOUND_TRACKING
- /**
- * @brief Check if the action is limited by latency.
- *
- * @return 1 if action is limited by latency, 0 otherwise
- */
- virtual int getLatencyLimited() {return m_latencyLimited;}
-#endif
-
- double m_latency;
- double m_latCurrent;
- double m_weight;
- double m_rate;
- const char* p_senderLinkName;
- double m_senderSize;
- xbt_fifo_item_t p_senderFifoItem;
-#ifdef HAVE_LATENCY_BOUND_TRACKING
- int m_latencyLimited;
-#endif
-
-};
-
-}