-/*
- * network_interface.hpp
- *
- * Created on: Nov 29, 2013
- * Author: bedaride
- */
-#include "surf.hpp"
-#include "surf_routing.hpp"
+/* Copyright (c) 2004-2015. 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 <xbt/base.h>
+
+#include <boost/unordered_map.hpp>
+
+#include "xbt/fifo.h"
+#include "xbt/dict.h"
+#include "surf_interface.hpp"
+#include "surf_routing.hpp"
+#include "src/surf/PropertyHolder.hpp"
+
+#include "simgrid/link.h"
+
/***********
* Classes *
***********/
+
+namespace simgrid {
+namespace surf {
+
class NetworkModel;
-typedef NetworkModel *NetworkModelPtr;
+class NetworkAction;
-class NetworkLink;
-typedef NetworkLink *NetworkLinkPtr;
+/*************
+ * Callbacks *
+ *************/
-class NetworkLinkLmm;
-typedef NetworkLinkLmm *NetworkLinkLmmPtr;
-class NetworkAction;
-typedef NetworkAction *NetworkActionPtr;
+/** @brief Callback signal fired when the state of a NetworkAction changes
+ * Signature: `void(NetworkAction *action, e_surf_action_state_t old, e_surf_action_state_t current)` */
+XBT_PUBLIC_DATA(simgrid::xbt::signal<void(simgrid::surf::NetworkAction*, e_surf_action_state_t, e_surf_action_state_t)>) networkActionStateChangedCallbacks;
+
+/** @brief Callback signal fired when a NetworkAction is created (when a communication starts)
+ * Signature: `void(NetworkAction *action, RoutingEdge *src, RoutingEdge *dst, double size, double rate)` */
+XBT_PUBLIC_DATA(simgrid::xbt::signal<void(simgrid::surf::NetworkAction*, simgrid::surf::NetCard *src, simgrid::surf::NetCard *dst, double size, double rate)>) networkCommunicateCallbacks;
-class NetworkActionLmm;
-typedef NetworkActionLmm *NetworkActionLmmPtr;
+}
+}
/*********
* Tools *
*********/
-
-void net_define_callbacks(void);
+XBT_PUBLIC(void) netlink_parse_init(sg_platf_link_cbarg_t link);
/*********
* Model *
*********/
+
+namespace simgrid {
+namespace surf {
+
+/** @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:
- NetworkModel() : Model("network") {
- };
- NetworkModel(string name) : Model(name) {
- f_networkSolve = lmm_solve;
- m_haveGap = false;
- };
+ /** @brief Constructor */
+ NetworkModel() : Model() { }
+
+ /** @brief Destructor */
~NetworkModel() {
if (p_maxminSystem)
lmm_system_free(p_maxminSystem);
if (p_actionHeap)
xbt_heap_free(p_actionHeap);
if (p_modifiedSet)
- xbt_swag_free(p_modifiedSet);
+ delete p_modifiedSet;
}
- virtual NetworkLinkPtr createResource(const char *name,
+ /**
+ * @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,
- e_surf_resource_state_t state_initial,
+ int initiallyOn,
tmgr_trace_t state_trace,
e_surf_link_sharing_policy_t policy,
xbt_dict_t properties)=0;
- //FIXME:void updateActionsStateLazy(double now, double delta);
- virtual void gapAppend(double /*size*/, const NetworkLinkLmmPtr /*link*/, NetworkActionLmmPtr /*action*/) {};
- virtual ActionPtr communicate(RoutingEdgePtr src, RoutingEdgePtr dst,
+ /**
+ * @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;
- virtual xbt_dynar_t getRoute(RoutingEdgePtr src, RoutingEdgePtr dst); //FIXME: kill field? That is done by the routing nowadays
- void (*f_networkSolve)(lmm_system_t);
+
+ /** @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);
- bool m_haveGap;
+ 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 history [TODO]
+ * @param state_trace [TODO]
+ */
+ Link(simgrid::surf::NetworkModel *model, const char *name, xbt_dict_t props,
+ lmm_constraint_t constraint,
+ tmgr_history_t history,
+ tmgr_trace_t state_trace);
+
+ /* Link destruction logic */
+ /**************************/
+protected:
+ ~Link();
+public:
+ void destroy(); // Must be called instead of the destructor
+private:
+ bool currentlyDestroying_ = false;
-class NetworkLink : virtual public Resource {
public:
- NetworkLink() : p_latEvent(NULL) {};
- virtual double getBandwidth()=0;
+ /** @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
+ * Signature: `void(LinkAction *action, int previouslyOn, int currentlyOn)` */
+ static simgrid::xbt::signal<void(simgrid::surf::Link*, int, int)> 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, double date=surf_get_clock())=0;
+
+ /** @brief Get the latency in seconds of current Link */
virtual double getLatency();
- virtual bool isShared()=0;
+
+ /** @brief Update the latency in seconds of current Link */
+ virtual void updateLatency(double value, double date=surf_get_clock())=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;
/* Using this object with the public part of
model does not make sense */
- double m_latCurrent;
- tmgr_trace_event_t p_latEvent;
-};
+ double m_latCurrent = 0;
+ tmgr_trace_event_t p_latEvent = NULL;
+
+ /* LMM */
+ tmgr_trace_event_t p_stateEvent = NULL;
+ s_surf_metric_t p_speed;
-class NetworkLinkLmm : public ResourceLmm, public NetworkLink {
+ /* User data */
public:
- NetworkLinkLmm() {};
- NetworkLinkLmm(lmm_system_t system,
- double constraint_value,
- tmgr_history_t history,
- e_surf_resource_state_t state_init,
- tmgr_trace_t state_trace,
- double metric_peak,
- tmgr_trace_t metric_trace)
- : ResourceLmm(system, constraint_value, history, state_init, state_trace, metric_peak, metric_trace)
-{
-}
- bool isShared();
- bool isUsed();
- double getBandwidth();
+ 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 *
**********/
-class NetworkAction : virtual public 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:
- NetworkAction() {};
+ /** @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_senderGap;
double m_senderSize;
xbt_fifo_item_t p_senderFifoItem;
#ifdef HAVE_LATENCY_BOUND_TRACKING
};
-class NetworkActionLmm : public ActionLmm, public NetworkAction {
-public:
- NetworkActionLmm() {};
-};
+}
+}
#endif /* SURF_NETWORK_INTERFACE_HPP_ */
