class RoutingPlatf;
/** @ingroup SURF_routing_interface
- * @brief A network card
+ * @brief Network cards are the vertices in the graph representing the network, used to compute paths between nodes.
+ *
* @details This represents a position in the network. One can route information between two netcards
*/
class NetCard {
public:
virtual ~NetCard(){};
- virtual int getId()=0;
+ virtual int getId()=0; // Our rank in the vertices_ array of our englobing AS.
virtual int *getIdPtr()=0;
virtual void setId(int id)=0;
virtual char *getName()=0;
*/
class As {
public:
- xbt_dynar_t p_indexNetworkElm = xbt_dynar_new(sizeof(char*),NULL);
- xbt_dict_t p_bypassRoutes; /* store bypass routes */
- routing_model_description_t p_modelDesc;
- e_surf_routing_hierarchy_t p_hierarchy;
- char *p_name = nullptr;
- As *p_routingFather = nullptr;
- xbt_dict_t p_routingSons = xbt_dict_new_homogeneous(NULL);
- NetCard *p_netcard;
- xbt_dynar_t p_linkUpDownList = NULL;
-
- As(){};
- /* Close that AS: no more content can be added to it */
+ As(const char*name);
+ /** @brief Close that AS: no more content can be added to it */
virtual void Seal()=0;
+ virtual ~As();
+
+ char *name_ = nullptr;
+ NetCard *netcard_ = nullptr;
+ As *father_ = nullptr;
+ xbt_dict_t sons_ = xbt_dict_new_homogeneous(NULL);
+
+ xbt_dynar_t vertices_ = xbt_dynar_new(sizeof(char*),NULL); // our content, as known to our graph routing algorithm (maps vertexId -> vertex)
+ xbt_dict_t bypassRoutes_ = nullptr;
+ e_surf_routing_hierarchy_t hierarchy_ = SURF_ROUTING_NULL;
+ xbt_dynar_t upDownLinks = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
+
- virtual ~As(){
- xbt_dict_free(&p_routingSons);
- xbt_dynar_free(&p_indexNetworkElm);
- xbt_dynar_free(&p_linkUpDownList);
- xbt_free(p_name);
- if (p_netcard)
- delete p_netcard;
- };
/**
- * @brief Get the characteristics of the routing path between two points
+ * @brief Probe the routing path between two points
*
- * This function is used by the networking model to find the information it needs when starting a communication.
+ * The networking model uses this function when creating a communication
+ * to retrieve both the list of links that the create communication will use,
+ * and the summed latency that these links represent.
*
- * The things are not straightforward because the platform can be routed using several routing models.
+ * The network could recompute the latency by itself from the list, but it would
+ * require an additional link set traversal. This operation being on the critical
+ * path of SimGrid, the routing computes the latency in behalf of the network.
+ *
+ * Things are rather complex here because we have to find the path from ASes to ASes, and within each.
+ * In addition, the different ASes may use differing routing models.
* Some ASes may be routed in full, others may have only some connection information and use a shortest path on top of that, and so on.
* Some ASes may even not have any predefined links and use only coordinate informations to compute the latency.
*
*
* @param src Initial point of the routing path
* @param dst Final point of the routing path
- * @param into Container into which the links should be pushed
- * @param latency Accumulator in which the latencies should be added
+ * @param into Container into which the traversed links should be pushed
+ * @param latency Accumulator in which the latencies should be added (caller must set it to 0)
*/
- virtual void getRouteAndLatency(
- NetCard *src, NetCard *dst,
- sg_platf_route_cbarg_t into, double *latency)=0;
+ virtual void getRouteAndLatency(NetCard *src, NetCard *dst, sg_platf_route_cbarg_t into, double *latency)=0;
+ /** @brief retrieves the list of all routes of size 1 (of type src x dst x Link) */
virtual xbt_dynar_t getOneLinkRoutes()=0;
+
virtual void getGraph(xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges)=0;
- virtual sg_platf_route_cbarg_t getBypassRoute(
- NetCard *src, NetCard *dst,
- double *lat)=0;
+
+ virtual sg_platf_route_cbarg_t getBypassRoute(NetCard *src, NetCard *dst,double *lat)=0;
/* The parser calls the following functions to inform the routing models
* that a new element is added to the AS currently built.
*
* Of course, only the routing model of this AS is informed, not every ones */
- virtual int parsePU(NetCard *elm)=0; /* A host or a router, whatever */
- virtual int parseAS(NetCard *elm)=0;
+ virtual int addComponent(NetCard *elm); /* A host, a router or an AS, whatever */
virtual void parseRoute(sg_platf_route_cbarg_t route)=0;
virtual void parseASroute(sg_platf_route_cbarg_t route)=0;
virtual void parseBypassroute(sg_platf_route_cbarg_t e_route)=0;
struct XBT_PRIVATE NetCardImpl : public NetCard {
public:
- NetCardImpl(const char *name, e_surf_network_element_type_t rcType, As *rcComponent)
- : p_rcComponent(rcComponent),
- p_rcType(rcType),
- p_name(xbt_strdup(name)) {}
- ~NetCardImpl() { xbt_free(p_name);};
-
- int getId() {return m_id;}
- int *getIdPtr() {return &m_id;}
- void setId(int id) {m_id = id;}
- char *getName() {return p_name;}
- As *getRcComponent() {return p_rcComponent;}
- e_surf_network_element_type_t getRcType() {return p_rcType;}
+ NetCardImpl(const char *name, e_surf_network_element_type_t componentType, As *component)
+ : component_(component),
+ componentType_(componentType),
+ name_(xbt_strdup(name))
+ {}
+ ~NetCardImpl() { xbt_free(name_);};
+
+ int getId() {return id_;}
+ int *getIdPtr() {return &id_;}
+ void setId(int id) {id_ = id;}
+ char *getName() {return name_;}
+ As *getRcComponent() {return component_;}
+ e_surf_network_element_type_t getRcType() {return componentType_;}
private:
- As *p_rcComponent;
- e_surf_network_element_type_t p_rcType;
- int m_id = -1;
- char *p_name;
+ As *component_;
+ e_surf_network_element_type_t componentType_;
+ int id_ = -1;
+ char *name_;
};
/** @ingroup SURF_routing_interface