X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/b7353991d3c313d9c9caae8d94adc7850f88baa7..f10f38b953c9cb8604392b92030cfe2d437a3c9c:/src/surf/network_ns3.c diff --git a/src/surf/network_ns3.c b/src/surf/network_ns3.c index 50cf119289..7e669dc4d4 100644 --- a/src/surf/network_ns3.c +++ b/src/surf/network_ns3.c @@ -5,6 +5,7 @@ * 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" @@ -18,6 +19,21 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network_ns3, surf, "Logging specific to the SURF network NS3 module"); extern routing_global_t global_routing; +extern xbt_dict_t dict_socket; + +static double time_to_next_flow_completion = -1; + +static double ns3_share_resources(double min); +static void ns3_update_actions_state(double now, double delta); +static void finalize(void); +static surf_action_t ns3_communicate(const char *src_name, + const char *dst_name, 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_str(char *str, const char *orig, const char *rep) { @@ -35,20 +51,20 @@ static void replace_str(char *str, const char *orig, const char *rep) str = xbt_strdup(buffer); } -static void replace_bdw_ns3(char * bdw) +static void replace_bdw_ns3(char ** bdw) { - char *temp = xbt_strdup(bdw); - xbt_free(bdw); - bdw = bprintf("%fbps",atof(temp)); + char *temp = xbt_strdup(*bdw); + xbt_free(*bdw); + *bdw = bprintf("%fBps",atof(temp)); xbt_free(temp); } -static void replace_lat_ns3(char * lat) +static void replace_lat_ns3(char ** lat) { - char *temp = xbt_strdup(lat); - xbt_free(lat); - lat = bprintf("%fs",atof(temp)); + char *temp = xbt_strdup(*lat); + xbt_free(*lat); + *lat = bprintf("%fs",atof(temp)); xbt_free(temp); } @@ -61,10 +77,19 @@ void parse_ns3_add_host(void) ns3_add_host(A_surfxml_host_id) ); } + +static void ns3_free_dynar(void * elmts){ + if(elmts) + free(elmts); + return; +} + void parse_ns3_add_link(void) { XBT_DEBUG("NS3_ADD_LINK '%s'",A_surfxml_link_id); + if(!IPV4addr) IPV4addr = xbt_dynar_new(sizeof(char*),ns3_free_dynar); + tmgr_trace_t bw_trace; tmgr_trace_t state_trace; tmgr_trace_t lat_trace; @@ -171,15 +196,13 @@ void parse_ns3_add_cluster(void) } } - - //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); + replace_lat_ns3(&lat); + replace_bdw_ns3(&bw); xbt_dynar_foreach(tab_elements_num,cpt,elmts) { @@ -204,8 +227,8 @@ void parse_ns3_add_cluster(void) //Create link backbone lat = xbt_strdup(cluster_bb_lat); bw = xbt_strdup(cluster_bb_bw); - replace_lat_ns3(lat); - replace_bdw_ns3(bw); + replace_lat_ns3(&lat); + replace_bdw_ns3(&bw); ns3_add_cluster(bw,lat,A_surfxml_cluster_id); xbt_free(lat); xbt_free(bw); @@ -234,44 +257,20 @@ static xbt_dynar_t ns3_get_route(const char *src, const char *dst) void parse_ns3_end_platform(void) { ns3_end_platform(); - - xbt_lib_cursor_t cursor = NULL; - char *name = NULL; - void **data = NULL; - XBT_DEBUG("link_lib"); - xbt_lib_foreach(link_lib, cursor, name, data) { - XBT_DEBUG("\tSee link '%s'\t--> NS3_LEVEL %p", - name, - data[NS3_LINK_LEVEL]); - } - XBT_DEBUG(" "); - XBT_DEBUG("host_lib"); - xbt_lib_foreach(host_lib, cursor, name, data) { - XBT_DEBUG("\tSee host '%s'\t--> NS3_LEVEL %p", - name, - data[NS3_HOST_LEVEL]); - } - XBT_DEBUG(" "); - XBT_DEBUG("as_router_lib"); - xbt_lib_foreach(as_router_lib, cursor, name, data) { - XBT_DEBUG("\tSee ASR '%s'\t--> NS3_LEVEL %p", - name, - data[NS3_ASR_LEVEL]); - } - - XBT_DEBUG(" "); } /* Create the ns3 topology based on routing strategy */ void create_ns3_topology() { - XBT_INFO("Starting topology generation"); + XBT_DEBUG("Starting topology generation"); + + xbt_dynar_shrink(IPV4addr,0); //get the onelinks from the parsed platform xbt_dynar_t onelink_routes = global_routing->get_onelink_routes(); if (!onelink_routes) xbt_die("There is no routes!"); - XBT_INFO("Have get_onelink_routes, found %ld routes",onelink_routes->used); + XBT_DEBUG("Have get_onelink_routes, found %ld routes",onelink_routes->used); //save them in trace file onelink_t onelink; unsigned int iter; @@ -281,17 +280,17 @@ void create_ns3_topology() void *link = onelink->link_ptr; if( strcmp(src,dst) && ((surf_ns3_link_t)link)->created){ - XBT_INFO("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); + XBT_DEBUG("Route from '%s' to '%s' with link '%s'",src,dst,((surf_ns3_link_t)link)->data->id); + char * link_bdw = bprintf("%s",((surf_ns3_link_t)link)->data->bdw); + char * link_lat = bprintf("%s",(((surf_ns3_link_t)link)->data->lat)); + replace_lat_ns3(&link_lat); + replace_bdw_ns3(&link_bdw); ((surf_ns3_link_t)link)->created = 0; - replace_bdw_ns3(link_bdw); - replace_lat_ns3(link_lat); -// XBT_INFO("src (%s), dst (%s), src_id = %d, dst_id = %d",src,dst, src_id, dst_id); - XBT_INFO("\tLink (%s) bdw:%s->%s lat:%s->%s",((surf_ns3_link_t)link)->data->id, - ((surf_ns3_link_t)link)->data->bdw,link_bdw, - ((surf_ns3_link_t)link)->data->lat,link_lat + // 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 @@ -342,13 +341,51 @@ static void free_ns3_host(void * 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(const char *filename) { + if (surf_network_model) + return; + surf_network_model = surf_model_init(); surf_network_model->name = "network NS3"; 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(_surf_cfg_set,"ns3/TcpModel"))) { + xbt_die("Impossible to initialize NS3 interface"); + } + routing_model_create(sizeof(s_surf_ns3_link_t), NULL, NULL); define_callbacks_ns3(filename); @@ -356,6 +393,149 @@ void surf_network_model_init_NS3(const char *filename) 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); update_model_description(surf_network_model_description, "NS3", surf_network_model); + +#ifdef HAVE_LATENCY_BOUND_TRACKING + surf_network_model->get_latency_limited = ns3_get_link_latency_limited; +#endif +} + +static void finalize(void) +{ + ns3_finalize(); + xbt_dynar_free_container(&IPV4addr); +} + +static double ns3_share_resources(double min) +{ + XBT_DEBUG("ns3_share_resources"); + + xbt_swag_t running_actions = + surf_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(double now, double delta) +{ + xbt_dict_cursor_t cursor = NULL; + char *key; + void *data; + + surf_action_network_ns3_t action = NULL; + xbt_swag_t running_actions = + surf_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); + 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 = global_routing->get_route(action->src_name, action->dst_name); + 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, + action->generic_action.data, + (surf_action_t) action, + (data_delta_sent)/delta, + now-delta, + delta); + } + action->last_sent = data_sent; + } +#endif + + if(ns3_get_socket_is_finished(data) == 1){ + action->generic_action.finish = now; + surf_action_state_set(&(action->generic_action), SURF_ACTION_DONE); + } + } + return; +} + +/* Max durations are not supported */ +static surf_action_t ns3_communicate(const char *src_name, + const char *dst_name, double size, double rate) +{ + surf_action_network_ns3_t action = NULL; + + XBT_DEBUG("Communicate from %s to %s",src_name,dst_name); + action = surf_action_new(sizeof(s_surf_action_network_ns3_t), size, surf_network_model, 0); + + ns3_create_flow(src_name, dst_name, surf_get_clock(), size, action); + +#ifdef HAVE_TRACING + action->last_sent = 0; + action->src_name = xbt_strdup (src_name); + action->dst_name = xbt_strdup (dst_name); +#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(((surf_action_network_ns3_t)action)->src_name); + xbt_free(((surf_action_network_ns3_t)action)->dst_name); + if (action->category) + xbt_free(action->category); +#endif + + surf_action_free(&action); + return 1; + } + return 0; }