+++ /dev/null
-/* Copyright (c) 2007-2014. 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 "surf_private.h"
-#include "surf/maxmin.h"
-#include "surf/ns3/ns3_interface.h"
-#include "xbt/lib.h"
-#include "surf/network_ns3_private.h"
-#include "xbt/str.h"
-
-extern xbt_lib_t host_lib;
-extern xbt_lib_t link_lib;
-extern xbt_lib_t as_router_lib;
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network_ns3, surf,
- "Logging specific to the SURF network NS3 module");
-
-extern routing_platf_t routing_platf;
-extern xbt_dict_t dict_socket;
-
-static double time_to_next_flow_completion = -1;
-
-static double ns3_share_resources(surf_model_t network_model, double min);
-static void ns3_update_actions_state(surf_model_t network_model, double now, double delta);
-static void finalize(surf_model_t network_model);
-static surf_action_t ns3_communicate(sg_routing_edge_t src_elm,
- sg_routing_edge_t dst_elm,
- double size, double rate);
-static void action_suspend(surf_action_t action);
-static void action_resume(surf_action_t action);
-static int action_is_suspended(surf_action_t action);
-static int action_unref(surf_action_t action);
-
-xbt_dynar_t IPV4addr;
-
-static void replace_bdw_ns3(char ** bdw)
-{
- char *temp = xbt_strdup(*bdw);
- xbt_free(*bdw);
- *bdw = bprintf("%fBps",atof(temp));
- xbt_free(temp);
-
-}
-
-static void replace_lat_ns3(char ** lat)
-{
- char *temp = xbt_strdup(*lat);
- xbt_free(*lat);
- *lat = bprintf("%fs",atof(temp));
- xbt_free(temp);
-}
-
-static void parse_ns3_add_host(sg_platf_host_cbarg_t host)
-{
- XBT_DEBUG("NS3_ADD_HOST '%s'",host->id);
- xbt_lib_set(host_lib,
- host->id,
- NS3_HOST_LEVEL,
- ns3_add_host(host->id)
- );
-}
-
-static void parse_ns3_add_link(sg_platf_link_cbarg_t link)
-{
- XBT_DEBUG("NS3_ADD_LINK '%s'",link->id);
-
- if(!IPV4addr) IPV4addr = xbt_dynar_new(sizeof(char*),free);
-
- tmgr_trace_t bw_trace;
- tmgr_trace_t state_trace;
- tmgr_trace_t lat_trace;
-
- bw_trace = link->bandwidth_trace;
- lat_trace = link->latency_trace;
- state_trace = link->state_trace;
-
- 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");
-
- ns3_link_t link_ns3 = xbt_new0(s_ns3_link_t,1);;
- link_ns3->id = xbt_strdup((char*)(link->id));
- link_ns3->bdw = bprintf("%f",link->bandwidth);
- link_ns3->lat = bprintf("%f",link->latency);
-
- surf_ns3_link_t l = xbt_new0(s_surf_ns3_link_t,1);
- l->generic_resource.name = xbt_strdup(link->id);
- l->generic_resource.properties = current_property_set;
- l->data = link_ns3;
- l->created = 1;
-
- xbt_lib_set(link_lib,link->id,NS3_LINK_LEVEL,link_ns3);
- xbt_lib_set(link_lib,link->id,SURF_LINK_LEVEL,l);
-}
-
-static void parse_ns3_add_router(sg_platf_router_cbarg_t router)
-{
- XBT_DEBUG("NS3_ADD_ROUTER '%s'",router->id);
- xbt_lib_set(as_router_lib,
- router->id,
- NS3_ASR_LEVEL,
- ns3_add_router(router->id)
- );
-}
-
-static void parse_ns3_add_AS(sg_platf_AS_cbarg_t AS)
-{
- XBT_DEBUG("NS3_ADD_AS '%s'",AS->id);
- xbt_lib_set(as_router_lib,
- AS->id,
- NS3_ASR_LEVEL,
- ns3_add_AS(AS->id)
- );
-}
-
-static void parse_ns3_add_cluster(sg_platf_cluster_cbarg_t cluster)
-{
- const char *cluster_prefix = cluster->prefix;
- const char *cluster_suffix = cluster->suffix;
- const char *cluster_radical = cluster->radical;
- const char *cluster_bb_bw = bprintf("%f",cluster->bb_bw);
- const char *cluster_bb_lat = bprintf("%f",cluster->bb_lat);
- const char *cluster_bw = bprintf("%f",cluster->bw);
- const char *cluster_lat = bprintf("%f",cluster->lat);
- const char *groups = NULL;
-
- 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_foreach(radical_elements, iter, groups) {
- radical_ends = xbt_str_split(groups, "-");
-
- switch (xbt_dynar_length(radical_ends)) {
- case 1:
- start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
- xbt_dynar_push_as(tab_elements_num, int, start);
- router_id = bprintf("ns3_%s%d%s", cluster_prefix, start, cluster_suffix);
- xbt_lib_set(host_lib,
- router_id,
- NS3_HOST_LEVEL,
- ns3_add_host_cluster(router_id)
- );
- XBT_DEBUG("NS3_ADD_ROUTER '%s'",router_id);
- free(router_id);
- break;
-
- case 2:
- start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
- end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
- for (i = start; i <= end; i++){
- xbt_dynar_push_as(tab_elements_num, int, i);
- router_id = bprintf("ns3_%s%d%s", cluster_prefix, i, cluster_suffix);
- xbt_lib_set(host_lib,
- router_id,
- NS3_HOST_LEVEL,
- ns3_add_host_cluster(router_id)
- );
- XBT_DEBUG("NS3_ADD_ROUTER '%s'",router_id);
- free(router_id);
- }
- break;
-
- default:
- XBT_DEBUG("Malformed radical");
- }
- }
-
- //Create links
- unsigned int cpt;
- int elmts;
- char * lat = xbt_strdup(cluster_lat);
- char * bw = xbt_strdup(cluster_bw);
- replace_lat_ns3(&lat);
- replace_bdw_ns3(&bw);
-
- 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 = xbt_lib_get_or_null(host_lib,host_id, NS3_HOST_LEVEL);
- ns3_nodes_t host_dst = xbt_lib_get_or_null(host_lib,router_id,NS3_HOST_LEVEL);
-
- if(host_src && host_dst){}
- else 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,
- bw,lat);
-
- free(router_id);
- free(host_id);
- }
- xbt_dynar_free(&tab_elements_num);
-
-
- //Create link backbone
- lat = xbt_strdup(cluster_bb_lat);
- bw = xbt_strdup(cluster_bb_bw);
- replace_lat_ns3(&lat);
- replace_bdw_ns3(&bw);
- ns3_add_cluster(bw,lat,cluster->id);
- xbt_free(lat);
- xbt_free(bw);
-}
-
-static double ns3_get_link_latency (const void *link)
-{
- double lat;
- //XBT_DEBUG("link_id:%s link_lat:%s link_bdw:%s",((surf_ns3_link_t)link)->data->id,((surf_ns3_link_t)link)->data->lat,((surf_ns3_link_t)link)->data->bdw);
- sscanf(((surf_ns3_link_t)link)->data->lat,"%lg",&lat);
- return lat;
-}
-static double ns3_get_link_bandwidth (const void *link)
-{
- double bdw;
- //XBT_DEBUG("link_id:%s link_lat:%s link_bdw:%s",((surf_ns3_link_t)link)->data->id,((surf_ns3_link_t)link)->data->lat,((surf_ns3_link_t)link)->data->bdw);
- sscanf(((surf_ns3_link_t)link)->data->bdw,"%lg",&bdw);
- return bdw;
-}
-
-static xbt_dynar_t ns3_get_route(void *src_card, void *dst_card)
-{
- xbt_dynar_t route = NULL;
- routing_get_route_and_latency(src_card, dst_card, &route, NULL);
- return route;
-}
-
-static void parse_ns3_end_platform(void)
-{
- ns3_end_platform();
-}
-
-/* Create the ns3 topology based on routing strategy */
-static void create_ns3_topology(void)
-{
- XBT_DEBUG("Starting topology generation");
-
- xbt_dynar_shrink(IPV4addr,0);
-
- //get the onelinks from the parsed platform
- xbt_dynar_t onelink_routes = routing_platf->get_onelink_routes();
- 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
- onelink_t onelink;
- unsigned int iter;
- xbt_dynar_foreach(onelink_routes, iter, onelink) {
- char *src = onelink->src->name;
- char *dst = onelink->dst->name;
- void *link = onelink->link_ptr;
- if( strcmp(src,dst) && ((surf_ns3_link_t)link)->created){
- XBT_DEBUG("Route from '%s' to '%s' with link '%s'",src,dst,((surf_ns3_link_t)link)->data->id);
- char * link_bdw = xbt_strdup(((surf_ns3_link_t)link)->data->bdw);
- char * link_lat = xbt_strdup(((surf_ns3_link_t)link)->data->lat);
- replace_lat_ns3(&link_lat);
- replace_bdw_ns3(&link_bdw);
- ((surf_ns3_link_t)link)->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",((surf_ns3_link_t)link)->data->id,
- link_bdw,
- link_lat
- );
-
- //create link ns3
- ns3_nodes_t host_src = xbt_lib_get_or_null(host_lib,src,NS3_HOST_LEVEL);
- if(!host_src) host_src = xbt_lib_get_or_null(as_router_lib,src,NS3_ASR_LEVEL);
- ns3_nodes_t host_dst = xbt_lib_get_or_null(host_lib,dst,NS3_HOST_LEVEL);
- if(!host_dst) host_dst = xbt_lib_get_or_null(as_router_lib,dst,NS3_ASR_LEVEL);
-
- if(host_src && host_dst){}
- else 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);
-
- xbt_free(link_bdw);
- xbt_free(link_lat);
- }
- }
-}
-
-static void define_callbacks_ns3(void)
-{
- sg_platf_host_add_cb (&parse_ns3_add_host);
- sg_platf_router_add_cb (&parse_ns3_add_router);
- sg_platf_link_add_cb (&parse_ns3_add_link);
- sg_platf_cluster_add_cb (&parse_ns3_add_cluster);
- sg_platf_AS_begin_add_cb (&parse_ns3_add_AS);
- sg_platf_postparse_add_cb(&create_ns3_topology); //get_one_link_routes
- sg_platf_postparse_add_cb(&parse_ns3_end_platform); //InitializeRoutes
-}
-
-static void free_ns3_link(void * elmts)
-{
- ns3_link_t link = elmts;
- free(link->id);
- free(link->bdw);
- free(link->lat);
- free(link);
-}
-
-static void free_ns3_host(void * elmts)
-{
- ns3_nodes_t host = elmts;
- free(host);
-}
-
-#ifdef HAVE_LATENCY_BOUND_TRACKING
-static int ns3_get_link_latency_limited(surf_action_t action)
-{
- return 0;
-}
-#endif
-
-#ifdef HAVE_TRACING
-static void ns3_action_set_category(surf_action_t action, const char *category)
-{
- action->category = xbt_strdup (category);
-}
-#endif
-
-void surf_network_model_init_NS3()
-{
- if (surf_network_model)
- return;
-
- surf_network_model = surf_model_init();
- surf_network_model->name = "network NS3";
- surf_network_model->type = SURF_MODEL_TYPE_NETWORK;
- surf_network_model->extension.network.get_link_latency = ns3_get_link_latency;
- surf_network_model->extension.network.get_link_bandwidth = ns3_get_link_bandwidth;
- surf_network_model->extension.network.get_route = ns3_get_route;
-
- surf_network_model->model_private->share_resources = ns3_share_resources;
- surf_network_model->model_private->update_actions_state = ns3_update_actions_state;
- surf_network_model->model_private->finalize = finalize;
-
- surf_network_model->suspend = action_suspend;
- surf_network_model->resume = action_resume;
- surf_network_model->is_suspended = action_is_suspended;
- surf_network_model->action_unref = action_unref;
- surf_network_model->extension.network.communicate = ns3_communicate;
-
-#ifdef HAVE_TRACING
- surf_network_model->set_category = ns3_action_set_category;
-#endif
-
- /* Added the initialization for NS3 interface */
-
- if (ns3_initialize(xbt_cfg_get_string(_sg_cfg_set, "ns3/TcpModel"))) {
- xbt_die("Impossible to initialize NS3 interface");
- }
-
- routing_model_create(NULL);
- define_callbacks_ns3();
-
- NS3_HOST_LEVEL = xbt_lib_add_level(host_lib,(void_f_pvoid_t)free_ns3_host);
- NS3_ASR_LEVEL = xbt_lib_add_level(as_router_lib,(void_f_pvoid_t)free_ns3_host);
- NS3_LINK_LEVEL = xbt_lib_add_level(link_lib,(void_f_pvoid_t)free_ns3_link);
-
- xbt_dynar_push(model_list, &surf_network_model);
-
-#ifdef HAVE_LATENCY_BOUND_TRACKING
- surf_network_model->get_latency_limited = ns3_get_link_latency_limited;
-#endif
-}
-
-static void finalize(surf_model_t network_model)
-{
- ns3_finalize();
- xbt_dynar_free_container(&IPV4addr);
- xbt_dict_free(&dict_socket);
-}
-
-static double ns3_share_resources(surf_model_t network_model, double min)
-{
- XBT_DEBUG("ns3_share_resources");
-
- xbt_swag_t running_actions =
- network_model->states.running_action_set;
-
- //get the first relevant value from the running_actions list
- if (!xbt_swag_size(running_actions) || min == 0.0)
- return -1.0;
- else
- do {
- ns3_simulator(min);
- time_to_next_flow_completion = ns3_time() - surf_get_clock();
- } while(double_equals(time_to_next_flow_completion,0));
-
- XBT_DEBUG("min : %f",min);
- XBT_DEBUG("ns3 time : %f",ns3_time());
- XBT_DEBUG("surf time : %f",surf_get_clock());
- XBT_DEBUG("Next completion %f :",time_to_next_flow_completion);
-
- return time_to_next_flow_completion;
-}
-
-static void ns3_update_actions_state(surf_model_t network_model, double now, double delta)
-{
- xbt_dict_cursor_t cursor = NULL;
- char *key;
- void *data;
-
- static xbt_dynar_t socket_to_destroy = NULL;
- if(!socket_to_destroy) socket_to_destroy = xbt_dynar_new(sizeof(char*),NULL);
-
- surf_action_network_ns3_t action = NULL;
- xbt_swag_t running_actions =
- network_model->states.running_action_set;
-
- /* If there are no running flows, just return */
- if (!xbt_swag_size(running_actions)) {
- while(double_positive(now-ns3_time())) {
- ns3_simulator(now-ns3_time());
- }
- return;
- }
-
- xbt_dict_foreach(dict_socket,cursor,key,data){
- action = (surf_action_network_ns3_t)ns3_get_socket_action(data);
- XBT_DEBUG("Processing socket %p (action %p)",data,action);
- action->generic_action.remains = action->generic_action.cost - ns3_get_socket_sent(data);
-
-#ifdef HAVE_TRACING
- if (TRACE_is_enabled() &&
- surf_action_state_get(&(action->generic_action)) == SURF_ACTION_RUNNING){
- double data_sent = ns3_get_socket_sent(data);
- double data_delta_sent = data_sent - action->last_sent;
-
- xbt_dynar_t route = NULL;
-
- routing_get_route_and_latency (action->src_elm, action->dst_elm, &route, NULL);
- unsigned int i;
- for (i = 0; i < xbt_dynar_length (route); i++){
- surf_ns3_link_t *link = ((surf_ns3_link_t*)xbt_dynar_get_ptr (route, i));
- TRACE_surf_link_set_utilization ((*link)->generic_resource.name,
- ((surf_action_t) action)->category,
- (data_delta_sent)/delta,
- now-delta,
- delta);
- }
- action->last_sent = data_sent;
- }
-#endif
-
- 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);
- action->generic_action.finish = now;
- surf_action_state_set(&(action->generic_action), SURF_ACTION_DONE);
- }
- }
-
- while (!xbt_dynar_is_empty(socket_to_destroy)){
- xbt_dynar_pop(socket_to_destroy,&key);
-
- void *data = xbt_dict_get (dict_socket, key);
- surf_action_network_ns3_t action = (surf_action_network_ns3_t)ns3_get_socket_action(data);
- XBT_DEBUG ("Removing socket %p of action %p", key, action);
- xbt_dict_remove(dict_socket,key);
- }
- return;
-}
-
-/* Max durations are not supported */
-static surf_action_t ns3_communicate(sg_routing_edge_t src_elm,
- sg_routing_edge_t dst_elm,
- double size, double rate)
-{
- surf_action_network_ns3_t action = NULL;
-
- XBT_DEBUG("Communicate from %s to %s", src_elm->name, dst_elm->name);
- action = surf_action_new(sizeof(s_surf_action_network_ns3_t), size, surf_network_model, 0);
-
- ns3_create_flow(src_elm->name, dst_elm->name, surf_get_clock(), size, action);
-
-#ifdef HAVE_TRACING
- action->last_sent = 0;
- action->src_elm = src_elm;
- action->dst_elm = dst_elm;
-#endif
-
- return (surf_action_t) action;
-}
-
-/* Suspend a flow() */
-static void action_suspend(surf_action_t action)
-{
- THROW_UNIMPLEMENTED;
-}
-
-/* Resume a flow() */
-static void action_resume(surf_action_t action)
-{
- THROW_UNIMPLEMENTED;
-}
-
-/* Test whether a flow is suspended */
-static int action_is_suspended(surf_action_t action)
-{
- return 0;
-}
-
-static int action_unref(surf_action_t action)
-{
- action->refcount--;
- if (!action->refcount) {
- xbt_swag_remove(action, action->state_set);
-
-#ifdef HAVE_TRACING
- xbt_free(action->category);
-#endif
- XBT_DEBUG ("Removing action %p", action);
- surf_action_free(&action);
- return 1;
- }
- return 0;
-}
