-/* Copyright (c) 2013-2015. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2013-2016. 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. */
#include <xbt/signal.hpp>
#include "surf_interface.hpp"
+#include "src/kernel/routing/AsImpl.hpp"
+
#include <float.h>
+#include <vector>
-XBT_PUBLIC(void) routing_model_create( void *loopback);
+SG_BEGIN_DECL()
+XBT_PRIVATE xbt_node_t new_xbt_graph_node (xbt_graph_t graph, const char *name, xbt_dict_t nodes);
+XBT_PRIVATE xbt_edge_t new_xbt_graph_edge (xbt_graph_t graph, xbt_node_t s, xbt_node_t d, xbt_dict_t edges);
+SG_END_DECL()
namespace simgrid {
-namespace surf {
+namespace kernel {
+namespace routing {
+
+ XBT_PUBLIC_DATA(simgrid::xbt::signal<void(s4u::As*)>) asCreatedCallbacks;
/***********
* Classes *
***********/
-class As;
-class XBT_PRIVATE RoutingModelDescription;
class XBT_PRIVATE Onelink;
class RoutingPlatf;
-/** @ingroup SURF_routing_interface
- * @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; // Our rank in the vertices_ array of our container AS.
- virtual int *getIdPtr()=0;
- virtual void setId(int id)=0;
- virtual char *getName()=0;
- virtual As *getRcComponent()=0;
- virtual e_surf_network_element_type_t getRcType()=0;
-};
-
-/** @ingroup SURF_routing_interface
- * @brief The Autonomous System (AS) routing interface
- * @details [TODO]
- */
-class As {
-public:
- 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);
-
-
-
- /**
- * @brief Probe the routing path between two points
- *
- * 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 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.
- *
- * So, the path is constructed recursively, with each traversed AS adding its information to the set.
- * The algorithm for that is explained in http://hal.inria.fr/hal-00650233/
- *
- * @param src Initial point of the routing path
- * @param dst Final point of the routing path
- * @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;
- /** @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;
-
- /* 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 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 {
+class AsRoute {
public:
- 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 *component_;
- e_surf_network_element_type_t componentType_;
- int id_ = -1;
- char *name_;
+ explicit AsRoute(NetCard* gwSrc, NetCard* gwDst) : gw_src(gwSrc), gw_dst(gwDst) {}
+ const NetCard* gw_src;
+ const NetCard* gw_dst;
+ std::vector<Link*> links;
};
/** @ingroup SURF_routing_interface
- * @brief Link of lenght 1, alongside with its source and destination. This is mainly usefull in the ns3 bindings
+ * @brief Link of length 1, alongside with its source and destination. This is mainly useful in the ns3 bindings
*/
class Onelink {
public:
- Onelink(void *link, NetCard *src, NetCard *dst)
- : p_src(src), p_dst(dst), p_link(link) {};
- NetCard *p_src;
- NetCard *p_dst;
- void *p_link;
+ Onelink(Link* link, NetCard* src, NetCard* dst) : src_(src), dst_(dst), link_(link) {}
+ NetCard* src_;
+ NetCard* dst_;
+ Link* link_;
};
-/** @ingroup SURF_routing_interface
- * @brief The class representing a whole routing platform
- */
-XBT_PUBLIC_CLASS RoutingPlatf {
-public:
- RoutingPlatf(void *loopback);
- ~RoutingPlatf();
- As *p_root = nullptr;
- void *p_loopback;
- xbt_dynar_t p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
- xbt_dynar_t getOneLinkRoutes(void);
- xbt_dynar_t recursiveGetOneLinkRoutes(As *rc);
- void getRouteAndLatency(NetCard *src, NetCard *dst, xbt_dynar_t * links, double *latency);
-};
-
-/*************
- * Callbacks *
- *************/
-
-XBT_PUBLIC_DATA(simgrid::xbt::signal<void(NetCard*)>) netcardCreatedCallbacks;
-XBT_PUBLIC_DATA(simgrid::xbt::signal<void(As*)>) asCreatedCallbacks;
-
-}
-}
+}}}
#endif /* NETWORK_ROUTING_HPP_ */
