X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ad32fd753f73b8a8a14242781eb011e78446995a..2652a7d2c9ebb969683d8fd94b11c96489327912:/src/surf/network_ns3.cpp diff --git a/src/surf/network_ns3.cpp b/src/surf/network_ns3.cpp index dbd4db1cb5..d8f4ba7be7 100644 --- a/src/surf/network_ns3.cpp +++ b/src/surf/network_ns3.cpp @@ -4,6 +4,13 @@ /* 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 + +#include "ns3/core-module.h" +#include "ns3/node.h" + +#include "ns3/ns3_interface.h" +#include "ns3/ns3_simulator.h" #include "src/surf/network_ns3.hpp" #include "src/surf/HostImpl.hpp" @@ -11,16 +18,31 @@ #include "simgrid/sg_config.h" #include "src/instr/instr_private.h" // TRACE_is_enabled(). FIXME: remove by subscribing tracing to the surf signals -#include "simgrid/s4u/as.hpp" +#include "simgrid/s4u/As.hpp" -XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ns3); +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ns3, surf, "Logging specific to the SURF network NS3 module"); int NS3_EXTENSION_ID; -xbt_dynar_t IPV4addr; +xbt_dynar_t IPV4addr = xbt_dynar_new(sizeof(char*),free); static double time_to_next_flow_completion = -1; -extern xbt_dict_t dict_socket; +/***************** + * Crude globals * + *****************/ + +extern xbt_dict_t flowFromSock; + +static ns3::InternetStackHelper stack; +static ns3::NodeContainer nodes; +static ns3::NodeContainer Cluster_nodes; +static ns3::Ipv4InterfaceContainer interfaces; + +static int number_of_nodes = 0; +static int number_of_clusters_nodes = 0; +static int number_of_links = 1; +static int number_of_networks = 1; +static int port_number = 1025; //Port number is limited from 1025 to 65 000 /************* * Callbacks * @@ -30,38 +52,28 @@ static void simgrid_ns3_add_host(simgrid::s4u::Host& host) { const char* id = host.name().c_str(); XBT_DEBUG("NS3_ADD_HOST '%s'", id); - host.extension_set(NS3_EXTENSION_ID, ns3_add_host(id)); -} -static void parse_ns3_add_link(sg_platf_link_cbarg_t link) -{ - XBT_DEBUG("NS3_ADD_LINK '%s'",link->id); + ns3_node_t ns3host = xbt_new0(s_ns3_node_t,1); + ns3::Ptr node = ns3::CreateObject (0); + stack.Install(node); + nodes.Add(node); + ns3host->node_num = number_of_nodes ++; - if(!IPV4addr) - IPV4addr = xbt_dynar_new(sizeof(char*),free); - - surf_network_model->createLink(link->id, - link->bandwidth, link->bandwidth_trace, - link->latency, link->latency_trace, - link->state_trace, link->policy, link->properties); + host.extension_set(NS3_EXTENSION_ID, ns3host); } -static void simgrid_ns3_add_router(simgrid::surf::NetCard* router) +static void simgrid_ns3_add_netcard(simgrid::surf::NetCard* netcard) { - const char* router_id = router->name(); - XBT_DEBUG("NS3_ADD_ROUTER '%s'",router_id); - xbt_lib_set(as_router_lib, - router_id, - NS3_ASR_LEVEL, - ns3_add_router(router_id) - ); -} + const char* id = netcard->name(); -static void parse_ns3_add_AS(simgrid::s4u::As* as) -{ - const char* as_id = as->name(); - XBT_DEBUG("NS3_ADD_AS '%s'", as_id); - xbt_lib_set(as_router_lib, as_id, NS3_ASR_LEVEL, ns3_add_AS(as_id) ); + ns3_node_t ns3netcard = xbt_new0(s_ns3_node_t,1); + XBT_DEBUG("Interface ns3 add netcard[%d] '%s'",number_of_nodes,id); + ns3::Ptr node = ns3::CreateObject (0); + stack.Install(node); + nodes.Add(node); + ns3netcard->node_num = number_of_nodes++; + + xbt_lib_set(as_router_lib, id, NS3_ASR_LEVEL, ns3netcard ); } #include "src/surf/xml/platf.hpp" // FIXME: move that back to the parsing area @@ -72,15 +84,13 @@ static void parse_ns3_add_cluster(sg_platf_cluster_cbarg_t cluster) int start, end, i; unsigned int iter; - xbt_dynar_t radical_elements; - xbt_dynar_t radical_ends; xbt_dynar_t tab_elements_num = xbt_dynar_new(sizeof(int), NULL); char *router_id,*host_id; - radical_elements = xbt_str_split(cluster->radical, ","); + xbt_dynar_t radical_elements = xbt_str_split(cluster->radical, ","); xbt_dynar_foreach(radical_elements, iter, groups) { - radical_ends = xbt_str_split(groups, "-"); + xbt_dynar_t radical_ends = xbt_str_split(groups, "-"); switch (xbt_dynar_length(radical_ends)) { case 1: @@ -117,21 +127,17 @@ static void parse_ns3_add_cluster(sg_platf_cluster_cbarg_t cluster) char * lat = bprintf("%fs", cluster->lat); char * bw = bprintf("%fBps", cluster->bw); - xbt_dynar_foreach(tab_elements_num,cpt,elmts) - { + xbt_dynar_foreach(tab_elements_num,cpt,elmts) { host_id = bprintf("%s%d%s", cluster->prefix, elmts, cluster->suffix); router_id = bprintf("ns3_%s%d%s", cluster->prefix, elmts, cluster->suffix); XBT_DEBUG("Create link from '%s' to '%s'",host_id,router_id); - ns3_nodes_t host_src = ns3_find_host(host_id); - ns3_nodes_t host_dst = ns3_find_host(router_id); + ns3_node_t host_src = ns3_find_host(host_id); + ns3_node_t host_dst = ns3_find_host(router_id); - if(host_src && host_dst){} - else xbt_die("\tns3_add_link from %d to %d",host_src->node_num,host_dst->node_num); + xbt_assert(host_src && host_dst, "\tns3_add_link from %d to %d",host_src->node_num,host_dst->node_num); - ns3_add_link(host_src->node_num,host_src->type, - host_dst->node_num,host_dst->type, - bw,lat); + ns3_add_link(host_src->node_num, host_dst->node_num, bw,lat); free(router_id); free(host_id); @@ -158,39 +164,38 @@ static void create_ns3_topology(void) //get the onelinks from the parsed platform xbt_dynar_t onelink_routes = routing_platf->getOneLinkRoutes(); - if (!onelink_routes) - xbt_die("There is no routes!"); - XBT_DEBUG("Have get_onelink_routes, found %ld routes",onelink_routes->used); - //save them in trace file + + std::unordered_set already_seen = std::unordered_set(); + + XBT_DEBUG("There is %ld one-link routes",onelink_routes->used); simgrid::surf::Onelink *onelink; unsigned int iter; xbt_dynar_foreach(onelink_routes, iter, onelink) { char *src = onelink->src_->name(); char *dst = onelink->dst_->name(); - simgrid::surf::NetworkNS3Link *link = - static_cast(onelink->link_); + simgrid::surf::LinkNS3 *link = static_cast(onelink->link_); - if (strcmp(src,dst) && link->m_created){ + if (strcmp(src,dst) && (already_seen.find(link) == already_seen.end())) { + already_seen.insert(link); XBT_DEBUG("Route from '%s' to '%s' with link '%s'", src, dst, link->getName()); char * link_bdw = bprintf("%fBps", link->getBandwidth()); char * link_lat = bprintf("%fs", link->getLatency()); - link->m_created = 0; // XBT_DEBUG("src (%s), dst (%s), src_id = %d, dst_id = %d",src,dst, src_id, dst_id); XBT_DEBUG("\tLink (%s) bdw:%s lat:%s", link->getName(), link_bdw, link_lat); //create link ns3 - ns3_nodes_t host_src = ns3_find_host(src); + ns3_node_t host_src = ns3_find_host(src); if (!host_src) - host_src = static_cast(xbt_lib_get_or_null(as_router_lib,src,NS3_ASR_LEVEL)); - ns3_nodes_t host_dst = ns3_find_host(dst); + host_src = static_cast(xbt_lib_get_or_null(as_router_lib,src,NS3_ASR_LEVEL)); + ns3_node_t host_dst = ns3_find_host(dst); if(!host_dst) - host_dst = static_cast(xbt_lib_get_or_null(as_router_lib,dst,NS3_ASR_LEVEL)); + host_dst = static_cast(xbt_lib_get_or_null(as_router_lib,dst,NS3_ASR_LEVEL)); if (!host_src || !host_dst) xbt_die("\tns3_add_link from %d to %d",host_src->node_num,host_dst->node_num); - ns3_add_link(host_src->node_num,host_src->type,host_dst->node_num,host_dst->type,link_bdw,link_lat); + ns3_add_link(host_src->node_num, host_dst->node_num, link_bdw, link_lat); xbt_free(link_bdw); xbt_free(link_lat); @@ -198,43 +203,15 @@ static void create_ns3_topology(void) } } -static void parse_ns3_end_platform(void) -{ - ns3_end_platform(); -} - -static void define_callbacks_ns3(void) -{ - simgrid::s4u::Host::onCreation.connect(simgrid_ns3_add_host); - simgrid::surf::netcardCreatedCallbacks.connect(simgrid_ns3_add_router); - simgrid::surf::on_link.connect (&parse_ns3_add_link); - simgrid::surf::on_cluster.connect (&parse_ns3_add_cluster); - simgrid::surf::asCreatedCallbacks.connect(parse_ns3_add_AS); - simgrid::surf::on_postparse.connect(&create_ns3_topology); //get_one_link_routes - simgrid::surf::on_postparse.connect(&parse_ns3_end_platform); //InitializeRoutes -} - /********* * Model * *********/ -static void free_ns3_link(void * elmts) -{ - delete static_cast(elmts); -} - -static void free_ns3_host(void * elmts) -{ - ns3_nodes_t host = static_cast(elmts); - free(host); -} - void surf_network_model_init_NS3() { if (surf_network_model) return; surf_network_model = new simgrid::surf::NetworkNS3Model(); - xbt_dynar_push(all_existing_models, &surf_network_model); } @@ -242,41 +219,32 @@ namespace simgrid { namespace surf { NetworkNS3Model::NetworkNS3Model() : NetworkModel() { - if (ns3_initialize(xbt_cfg_get_string(_sg_cfg_set, "ns3/TcpModel"))) { - xbt_die("Impossible to initialize NS3 interface"); - } + ns3_initialize(xbt_cfg_get_string(_sg_cfg_set, "ns3/TcpModel")); + routing_model_create(NULL); - define_callbacks_ns3(); + simgrid::s4u::Host::onCreation.connect(simgrid_ns3_add_host); + simgrid::surf::netcardCreatedCallbacks.connect(simgrid_ns3_add_netcard); + simgrid::surf::on_link.connect(netlink_parse_init); + simgrid::surf::on_cluster.connect (&parse_ns3_add_cluster); + simgrid::surf::on_postparse.connect(&create_ns3_topology); //get_one_link_routes + simgrid::surf::on_postparse.connect(&ns3_end_platform); //InitializeRoutes - NS3_EXTENSION_ID = simgrid::s4u::Host::extension_create(free_ns3_host); - NS3_ASR_LEVEL = xbt_lib_add_level(as_router_lib, free_ns3_host); + NS3_EXTENSION_ID = simgrid::s4u::Host::extension_create(xbt_free_f); + NS3_ASR_LEVEL = xbt_lib_add_level(as_router_lib, xbt_free_f); } NetworkNS3Model::~NetworkNS3Model() { - ns3_finalize(); xbt_dynar_free_container(&IPV4addr); - xbt_dict_free(&dict_socket); + xbt_dict_free(&flowFromSock); } -Link* NetworkNS3Model::createLink(const char *name, - double bw_initial, tmgr_trace_t bw_trace, - double lat_initial, tmgr_trace_t lat_trace, - tmgr_trace_t state_trace, - e_surf_link_sharing_policy_t policy, +Link* NetworkNS3Model::createLink(const char *name, double bandwidth, double latency, e_surf_link_sharing_policy_t policy, xbt_dict_t properties){ - if (bw_trace) - XBT_INFO("The NS3 network model doesn't support bandwidth state traces"); - if (lat_trace) - XBT_INFO("The NS3 network model doesn't support latency state traces"); - if (state_trace) - XBT_INFO("The NS3 network model doesn't support link state traces"); - Link* link = new NetworkNS3Link(this, name, properties, bw_initial, lat_initial); - Link::onCreation(link); - return link; + + return new LinkNS3(this, name, properties, bandwidth, latency); } -Action *NetworkNS3Model::communicate(NetCard *src, NetCard *dst, - double size, double rate) +Action *NetworkNS3Model::communicate(NetCard *src, NetCard *dst, double size, double rate) { XBT_DEBUG("Communicate from %s to %s", src->name(), dst->name()); NetworkNS3Action *action = new NetworkNS3Action(this, size, 0); @@ -288,7 +256,7 @@ Action *NetworkNS3Model::communicate(NetCard *src, NetCard *dst, action->p_dstElm = dst; networkCommunicateCallbacks(action, src, dst, size, rate); - return (surf_action_t) action; + return action; } double NetworkNS3Model::next_occuring_event(double now) @@ -301,11 +269,11 @@ double NetworkNS3Model::next_occuring_event(double now) else do { ns3_simulator(now); - time_to_next_flow_completion = ns3_time() - surf_get_clock();//FIXME: use now instead ? + time_to_next_flow_completion = ns3::Simulator::Now().GetSeconds() - surf_get_clock();//FIXME: use now instead ? } while(double_equals(time_to_next_flow_completion, 0, sg_surf_precision)); XBT_DEBUG("min : %f", now); - XBT_DEBUG("ns3 time : %f", ns3_time()); + XBT_DEBUG("ns3 time : %f", ns3::Simulator::Now().GetSeconds()); XBT_DEBUG("surf time : %f", surf_get_clock()); XBT_DEBUG("Next completion %f :", time_to_next_flow_completion); @@ -314,31 +282,28 @@ double NetworkNS3Model::next_occuring_event(double now) void NetworkNS3Model::updateActionsState(double now, double delta) { - xbt_dict_cursor_t cursor = NULL; - char *key; - void *data; + static xbt_dynar_t socket_to_destroy = xbt_dynar_new(sizeof(char*),NULL); - static xbt_dynar_t socket_to_destroy = NULL; - if(!socket_to_destroy) socket_to_destroy = xbt_dynar_new(sizeof(char*),NULL); + /* If there are no running flows, advance the NS3 simulator and return */ + if (getRunningActionSet()->empty()) { + + while(double_positive(now - ns3::Simulator::Now().GetSeconds(), sg_surf_precision)) + ns3_simulator(now-ns3::Simulator::Now().GetSeconds()); - /* If there are no running flows, just return */ - if (!getRunningActionSet()->size()) { - while(double_positive(now-ns3_time(), sg_surf_precision)) { - ns3_simulator(now-ns3_time()); - } return; } - NetworkNS3Action *action; - xbt_dict_foreach(dict_socket,cursor,key,data){ - action = static_cast(ns3_get_socket_action(data)); - XBT_DEBUG("Processing socket %p (action %p)",data,action); - action->setRemains(action->getCost() - ns3_get_socket_sent(data)); + xbt_dict_cursor_t cursor = NULL; + char *ns3Socket; + SgFlow *sgFlow; + xbt_dict_foreach(flowFromSock,cursor,ns3Socket,sgFlow){ + NetworkNS3Action * action = sgFlow->action_; + XBT_DEBUG("Processing socket %p (action %p)",sgFlow,action); + action->setRemains(action->getCost() - sgFlow->sentBytes_); if (TRACE_is_enabled() && - action->getState() == SURF_ACTION_RUNNING){ - double data_sent = ns3_get_socket_sent(data); - double data_delta_sent = data_sent - action->m_lastSent; + action->getState() == Action::State::running){ + double data_delta_sent = sgFlow->sentBytes_ - action->m_lastSent; std::vector *route = new std::vector(); @@ -347,24 +312,25 @@ void NetworkNS3Model::updateActionsState(double now, double delta) TRACE_surf_link_set_utilization (link->getName(), action->getCategory(), (data_delta_sent)/delta, now-delta, delta); delete route; - action->m_lastSent = data_sent; + action->m_lastSent = sgFlow->sentBytes_; } - if(ns3_get_socket_is_finished(data) == 1){ - xbt_dynar_push(socket_to_destroy,&key); - XBT_DEBUG("Destroy socket %p of action %p", key, action); + if(sgFlow->finished_){ + xbt_dynar_push(socket_to_destroy,&ns3Socket); + XBT_DEBUG("Destroy socket %p of action %p", ns3Socket, action); action->finish(); - action->setState(SURF_ACTION_DONE); + action->setState(Action::State::done); } } while (!xbt_dynar_is_empty(socket_to_destroy)){ - xbt_dynar_pop(socket_to_destroy,&key); + xbt_dynar_pop(socket_to_destroy,&ns3Socket); - void *data = xbt_dict_get (dict_socket, key); - action = static_cast(ns3_get_socket_action(data)); - XBT_DEBUG ("Removing socket %p of action %p", key, action); - xbt_dict_remove(dict_socket, key); + if (XBT_LOG_ISENABLED(ns3, xbt_log_priority_debug)) { + SgFlow *flow = (SgFlow*)xbt_dict_get (flowFromSock, ns3Socket); + XBT_DEBUG ("Removing socket %p of action %p", ns3Socket, flow->action_); + } + xbt_dict_remove(flowFromSock, ns3Socket); } return; } @@ -373,23 +339,29 @@ void NetworkNS3Model::updateActionsState(double now, double delta) * Resource * ************/ -NetworkNS3Link::NetworkNS3Link(NetworkNS3Model *model, const char *name, xbt_dict_t props, - double bw_initial, double lat_initial) +LinkNS3::LinkNS3(NetworkNS3Model *model, const char *name, xbt_dict_t props, double bandwidth, double latency) : Link(model, name, props) - , m_created(1) { - m_bandwidth.peak = bw_initial; - m_latency.peak = lat_initial; + m_bandwidth.peak = bandwidth; + m_latency.peak = latency; + + Link::onCreation(this); } -NetworkNS3Link::~NetworkNS3Link() +LinkNS3::~LinkNS3() { } -void NetworkNS3Link::apply_event(tmgr_trace_iterator_t event, double value) +void LinkNS3::apply_event(tmgr_trace_iterator_t event, double value) { THROW_UNIMPLEMENTED; } +void LinkNS3::setBandwidthTrace(tmgr_trace_t trace) { + xbt_die("The NS3 network model doesn't support latency state traces"); +} +void LinkNS3::setLatencyTrace(tmgr_trace_t trace) { + xbt_die("The NS3 network model doesn't support latency state traces"); +} /********** * Action * @@ -422,7 +394,7 @@ int NetworkNS3Action::unref() if (action_hook.is_linked()) p_stateSet->erase(p_stateSet->iterator_to(*this)); XBT_DEBUG ("Removing action %p", this); - delete this; + delete this; return 1; } return 0; @@ -430,3 +402,187 @@ int NetworkNS3Action::unref() } } + + +void ns3_simulator(double min){ + if (min > 0.0) // If there is a maximum amount of time to run + ns3::Simulator::Stop(ns3::Seconds(min)); + XBT_DEBUG("Start simulator for at most %fs",min); + ns3::Simulator::Run (); +} + +void ns3_create_flow(const char* a,const char *b,double startTime,u_int32_t TotalBytes,simgrid::surf::NetworkNS3Action * action) +{ + int node1 = ns3_find_host(a)->node_num; + int node2 = ns3_find_host(b)->node_num; + + ns3::Ptr src_node = nodes.Get(node1); + ns3::Ptr dst_node = nodes.Get(node2); + + char* addr = (char*)xbt_dynar_get_as(IPV4addr,node2,char*); + + XBT_DEBUG("ns3_create_flow %d Bytes from %d to %d with Interface %s",TotalBytes, node1, node2,addr); + ns3::PacketSinkHelper sink("ns3::TcpSocketFactory", ns3::InetSocketAddress (ns3::Ipv4Address::GetAny(), port_number)); + sink.Install (dst_node); + + ns3::Ptr sock = ns3::Socket::CreateSocket (src_node, ns3::TcpSocketFactory::GetTypeId()); + + xbt_dict_set(flowFromSock, transformSocketPtr(sock), new SgFlow(TotalBytes, action), NULL); + + sock->Bind(ns3::InetSocketAddress(port_number)); + XBT_DEBUG("Create flow starting to %fs + %fs = %fs", + startTime-ns3::Simulator::Now().GetSeconds(), ns3::Simulator::Now().GetSeconds(), startTime); + + ns3::Simulator::Schedule (ns3::Seconds(startTime-ns3::Simulator::Now().GetSeconds()), + &StartFlow, sock, addr, port_number); + + port_number++; + xbt_assert(port_number <= 65000, "Too many connections! Port number is saturated."); +} + +// initialize the NS3 interface and environment +void ns3_initialize(const char* TcpProtocol){ +// tcpModel are: +// "ns3::TcpNewReno" +// "ns3::TcpReno" +// "ns3::TcpTahoe" + + ns3::Config::SetDefault ("ns3::TcpSocket::SegmentSize", ns3::UintegerValue (1024)); // 1024-byte packet for easier reading + ns3::Config::SetDefault ("ns3::TcpSocket::DelAckCount", ns3::UintegerValue (1)); + + if (!strcmp(TcpProtocol,"default")) + return; + + if (!strcmp(TcpProtocol,"Reno")) { + XBT_INFO("Switching Tcp protocol to '%s'",TcpProtocol); + ns3::Config::SetDefault ("ns3::TcpL4Protocol::SocketType", ns3::StringValue("ns3::TcpReno")); + return; + } + if (!strcmp(TcpProtocol,"NewReno")) { + XBT_INFO("Switching Tcp protocol to '%s'",TcpProtocol); + ns3::Config::SetDefault ("ns3::TcpL4Protocol::SocketType", ns3::StringValue("ns3::TcpNewReno")); + return; + } + if(!strcmp(TcpProtocol,"Tahoe")){ + XBT_INFO("Switching Tcp protocol to '%s'",TcpProtocol); + ns3::Config::SetDefault ("ns3::TcpL4Protocol::SocketType", ns3::StringValue("ns3::TcpTahoe")); + return; + } + + xbt_die("The ns3/TcpModel must be : NewReno or Reno or Tahoe"); +} + +void * ns3_add_host_cluster(const char * id) +{ + ns3_node_t host = xbt_new0(s_ns3_node_t,1); + XBT_DEBUG("Interface ns3 add host[%d] '%s'",number_of_nodes,id); + ns3::Ptr node = ns3::CreateObject (0); + stack.Install(node); + Cluster_nodes.Add(node); + nodes.Add(node); + host->node_num = number_of_nodes; + number_of_nodes++; + return host; +} + +void ns3_add_cluster(char * bw,char * lat,const char *id) +{ + + XBT_DEBUG("cluster_id: %s",id); + XBT_DEBUG("bw: %s lat: %s",bw,lat); + XBT_DEBUG("Number of %s nodes: %d",id,Cluster_nodes.GetN() - number_of_clusters_nodes); + + ns3::NodeContainer Nodes; + + for(unsigned int i = number_of_clusters_nodes; i < Cluster_nodes.GetN() ; i++){ + Nodes.Add(Cluster_nodes.Get(i)); + XBT_DEBUG("Add node %d to cluster",i); + } + number_of_clusters_nodes = Cluster_nodes.GetN(); + + XBT_DEBUG("Add router %d to cluster",nodes.GetN()-Nodes.GetN()-1); + Nodes.Add(nodes.Get(nodes.GetN()-Nodes.GetN()-1)); + + xbt_assert(Nodes.GetN() <= 65000, "Cluster with NS3 is limited to 65000 nodes"); + ns3::CsmaHelper csma; + csma.SetChannelAttribute ("DataRate", ns3::StringValue (bw)); + csma.SetChannelAttribute ("Delay", ns3::StringValue (lat)); + ns3::NetDeviceContainer devices = csma.Install (Nodes); + XBT_DEBUG("Create CSMA"); + + char * adr = bprintf("%d.%d.0.0",number_of_networks,number_of_links); + XBT_DEBUG("Assign IP Addresses %s to CSMA.",adr); + ns3::Ipv4AddressHelper ipv4; + ipv4.SetBase (adr, "255.255.0.0"); + free(adr); + interfaces.Add(ipv4.Assign (devices)); + + if(number_of_links == 255){ + xbt_assert(number_of_networks < 255, "Number of links and networks exceed 255*255"); + number_of_links = 1; + number_of_networks++; + }else{ + number_of_links++; + } + XBT_DEBUG("Number of nodes in Cluster_nodes: %d",Cluster_nodes.GetN()); +} + +static char* transformIpv4Address (ns3::Ipv4Address from){ + std::stringstream sstream; + sstream << from ; + std::string s = sstream.str(); + return bprintf("%s",s.c_str()); +} + +void ns3_add_link(int src, int dst, char *bw, char *lat) +{ + if(number_of_links == 1 ) { + LogComponentEnable("UdpEchoClientApplication", ns3::LOG_LEVEL_INFO); + LogComponentEnable("UdpEchoServerApplication", ns3::LOG_LEVEL_INFO); + } + + ns3::PointToPointHelper pointToPoint; + + ns3::NetDeviceContainer netA; + ns3::Ipv4AddressHelper address; + + ns3::Ptr a = nodes.Get(src); + ns3::Ptr b = nodes.Get(dst); + + XBT_DEBUG("\tAdd PTP from %d to %d bw:'%s' lat:'%s'",src,dst,bw,lat); + pointToPoint.SetDeviceAttribute ("DataRate", ns3::StringValue (bw)); + pointToPoint.SetChannelAttribute ("Delay", ns3::StringValue (lat)); + //pointToPoint.EnablePcapAll("test_ns3_trace"); //DEBUG + + netA.Add(pointToPoint.Install (a, b)); + + char * adr = bprintf("%d.%d.0.0",number_of_networks,number_of_links); + address.SetBase (adr, "255.255.0.0"); + XBT_DEBUG("\tInterface stack '%s'",adr); + free(adr); + interfaces.Add(address.Assign (netA)); + + char *tmp = transformIpv4Address(interfaces.GetAddress(interfaces.GetN()-2)); + xbt_dynar_set_as(IPV4addr,src,char*,tmp); + XBT_DEBUG("Have write '%s' for Node '%d'",(char*)xbt_dynar_get_as(IPV4addr,src,char*),src); + + tmp = transformIpv4Address(interfaces.GetAddress(interfaces.GetN()-1)); + xbt_dynar_set_as(IPV4addr,dst,char*,tmp); + XBT_DEBUG("Have write '%s' for Node '%d'",(char*)xbt_dynar_get_as(IPV4addr,dst,char*),dst); + + if(number_of_links == 255){ + if(number_of_networks == 255) + xbt_die("Number of links and networks exceed 255*255"); + number_of_links = 1; + number_of_networks++; + }else{ + number_of_links++; + } +} + +void ns3_end_platform(void) +{ + XBT_DEBUG("InitializeRoutes"); + ns3::GlobalRouteManager::BuildGlobalRoutingDatabase(); + ns3::GlobalRouteManager::InitializeRoutes(); +}