XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network_ns3, surf,
"Logging specific to the SURF network NS3 module");
+#define MAX_LENGHT_IPV4 16 //255.255.255.255\0
+
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 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)
+{
+ char buffer[30];
+ char *p;
+
+ if(!(p = strstr(str, orig))) // Is 'orig' even in 'str'?
+ return;
+
+ strncpy(buffer, str, p-str); // Copy characters from 'str' start to 'orig' st$
+ buffer[p-str] = '\0';
+
+ sprintf(buffer+(p-str), "%s%s", rep, p+strlen(orig));
+ xbt_free(str);
+ str = xbt_strdup(buffer);
+}
+
+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);
+}
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(MAX_LENGHT_IPV4*sizeof(char),ns3_free_dynar);
+
tmgr_trace_t bw_trace;
tmgr_trace_t state_trace;
tmgr_trace_t lat_trace;
link->generic_resource.name = xbt_strdup(A_surfxml_link_id);
link->generic_resource.properties = current_property_set;
link->data = link_ns3;
+ link->created = 1;
xbt_lib_set(link_lib,A_surfxml_link_id,NS3_LINK_LEVEL,link_ns3);
xbt_lib_set(link_lib,A_surfxml_link_id,SURF_LINK_LEVEL,link);
}
void parse_ns3_add_cluster(void)
{
- XBT_DEBUG("NS3_ADD_CLUSTER '%s'",A_surfxml_cluster_id);
- routing_parse_Scluster();
+ char *cluster_prefix = A_surfxml_cluster_prefix;
+ char *cluster_suffix = A_surfxml_cluster_suffix;
+ char *cluster_radical = A_surfxml_cluster_radical;
+ char *cluster_bb_bw = A_surfxml_cluster_bb_bw;
+ char *cluster_bb_lat = A_surfxml_cluster_bb_lat;
+ char *cluster_bw = A_surfxml_cluster_bw;
+ char *cluster_lat = A_surfxml_cluster_lat;
+ 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:
+ surf_parse_get_int(&start,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:
+ surf_parse_get_int(&start,xbt_dynar_get_as(radical_ends, 0, char *));
+ surf_parse_get_int(&end, 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_dst->node_num,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,A_surfxml_cluster_id);
+ xbt_free(lat);
+ xbt_free(bw);
}
double ns3_get_link_latency (const void *link)
{
double lat;
- XBT_INFO("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);
+ //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;
}
double ns3_get_link_bandwidth (const void *link)
{
double bdw;
- XBT_INFO("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);
+ //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;
}
void parse_ns3_end_platform(void)
{
- xbt_lib_cursor_t cursor = NULL;
- char *name = NULL;
- void **data = NULL;
- XBT_INFO("link_lib");
- xbt_lib_foreach(link_lib, cursor, name, data) {
- XBT_INFO("\tSee link '%s'\t--> NS3_LEVEL %p",
- name,
- data[NS3_LINK_LEVEL]);
- }
- XBT_INFO(" ");
- XBT_INFO("host_lib");
- xbt_lib_foreach(host_lib, cursor, name, data) {
- XBT_INFO("\tSee host '%s'\t--> NS3_LEVEL %p",
- name,
- data[NS3_HOST_LEVEL]);
- }
- XBT_INFO(" ");
- XBT_INFO("as_router_lib");
- xbt_lib_foreach(as_router_lib, cursor, name, data) {
- XBT_INFO("\tSee ASR '%s'\t--> NS3_LEVEL %p",
- name,
- data[NS3_ASR_LEVEL]);
- }
-}
-
-static void replace_str(char *str, const char *orig, const char *rep)
-{
- char buffer[30];
- char *p;
-
- if(!(p = strstr(str, orig))) // Is 'orig' even in 'str'?
- return;
-
- strncpy(buffer, str, p-str); // Copy characters from 'str' start to 'orig' st$
- buffer[p-str] = '\0';
-
- sprintf(buffer+(p-str), "%s%s", rep, p+strlen(orig));
- xbt_free(str);
- str = xbt_strdup(buffer);
-}
-
-static void replace_bdw_ns3(char * bdw)
-{
- char *temp = xbt_strdup(bdw);
-
- replace_str(bdw,"000000000","Gbps");
- if(strcmp(bdw,temp)) {xbt_free(temp);return;}
- replace_str(bdw,"000000","Mbps");
- if(strcmp(bdw,temp)) {xbt_free(temp);return;}
- replace_str(bdw,"000","Kbps");
- if(strcmp(bdw,temp)) {xbt_free(temp);return;}
-
- xbt_free(bdw);
- bdw = bprintf("%s%s",temp,"bps");
- xbt_free(temp);
-}
-
-static void replace_lat_ns3(char * lat)
-{
- char *temp = xbt_strdup(lat);
-
- replace_str(lat,"E-1","00ms");
- if(strcmp(lat,temp)) {xbt_free(temp);return;}
- replace_str(lat,"E-2","0ms");
- if(strcmp(lat,temp)) {xbt_free(temp);return;}
- replace_str(lat,"E-3","ms");
- if(strcmp(lat,temp)) {xbt_free(temp);return;}
- replace_str(lat,"E-4","00us");
- if(strcmp(lat,temp)) {xbt_free(temp);return;}
- replace_str(lat,"E-5","0us");
- if(strcmp(lat,temp)) {xbt_free(temp);return;}
- replace_str(lat,"E-6","us");
- if(strcmp(lat,temp)) {xbt_free(temp);return;}
- replace_str(lat,"E-7","00ns");
- if(strcmp(lat,temp)) {xbt_free(temp);return;}
- replace_str(lat,"E-8","0ns");
- if(strcmp(lat,temp)) {xbt_free(temp);return;}
- replace_str(lat,"E-9","ns");
- if(strcmp(lat,temp)) {xbt_free(temp);return;}
-
- xbt_free(lat);
- lat = bprintf("%s%s",temp,"s");
- xbt_free(temp);
+ ns3_end_platform();
}
/* Create the ns3 topology based on routing strategy */
void create_ns3_topology()
{
- int src_id,dst_id;
-
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_DEBUG("Have get_onelink_routes, found %ld routes",onelink_routes->used);
//save them in trace file
onelink_t onelink;
unsigned int iter;
char *src = onelink->src;
char *dst = onelink->dst;
void *link = onelink->link_ptr;
- src_id = *((int *) xbt_dict_get_or_null(global_routing->root->to_index,src));
- dst_id = *((int *) xbt_dict_get_or_null(global_routing->root->to_index,dst));
-
- if(src_id != dst_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_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
+
+ 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 = 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;
+
+ // 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_dst->node_num,link_bdw,link_lat);
+
xbt_free(link_bdw);
xbt_free(link_lat);
}
static void define_callbacks_ns3(const char *filename)
{
- surfxml_add_callback(STag_surfxml_host_cb_list, &parse_ns3_add_host); //HOST
- surfxml_add_callback(STag_surfxml_router_cb_list, &parse_ns3_add_router); //ROUTER
- surfxml_add_callback(STag_surfxml_link_cb_list, &parse_ns3_add_link); //LINK
- surfxml_add_callback(STag_surfxml_AS_cb_list, &parse_ns3_add_AS); //AS
- //surfxml_add_callback(STag_surfxml_cluster_cb_list, &parse_ns3_add_cluster); //CLUSTER
-
- surfxml_add_callback(ETag_surfxml_platform_cb_list, &parse_ns3_end_platform); //DEBUG
- surfxml_add_callback(ETag_surfxml_platform_cb_list, &create_ns3_topology);
+ surfxml_add_callback(STag_surfxml_host_cb_list, &parse_ns3_add_host); //HOST
+ surfxml_add_callback(STag_surfxml_router_cb_list, &parse_ns3_add_router); //ROUTER
+ surfxml_add_callback(STag_surfxml_link_cb_list, &parse_ns3_add_link); //LINK
+ surfxml_add_callback(STag_surfxml_AS_cb_list, &parse_ns3_add_AS); //AS
+ surfxml_add_callback(STag_surfxml_cluster_cb_list, &parse_ns3_add_cluster); //CLUSTER
+
+ surfxml_add_callback(ETag_surfxml_platform_cb_list, &create_ns3_topology); //get_one_link_routes
+ surfxml_add_callback(ETag_surfxml_platform_cb_list, &parse_ns3_end_platform); //InitializeRoutes
}
static void free_ns3_elmts(void * elmts)
free(host);
}
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+static int ns3_get_link_latency_limited(surf_action_t action)
+{
+ return 0;
+}
+#endif
+
void surf_network_model_init_NS3(const char *filename)
{
- define_callbacks_ns3(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 = communicate;
+
+ /* Added the initialization for NS3 interface */
+ if (ns3_initialize()) {
+ xbt_die("Impossible to initialize NS3 interface");
+ }
+
routing_model_create(sizeof(s_surf_ns3_link_t), NULL, NULL);
+ define_callbacks_ns3(filename);
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);
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))
+ return -1.0;
+
+ ns3_simulator(min);
+ time_to_next_flow_completion = ns3_time() - surf_get_clock();
+
+// XBT_INFO("min : %f",min);
+// XBT_INFO("ns3 time : %f",ns3_time());
+// XBT_INFO("surf time : %f",surf_get_clock());
+
+ xbt_assert(time_to_next_flow_completion,
+ "Time to next flow completion not initialized!\n");
+
+ XBT_DEBUG("ns3_share_resources return %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_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))
+ return;
+
+ xbt_dict_foreach(dict_socket,cursor,key,data){
+ action = (surf_action_t)ns3_get_socket_action(data);
+ action->remains = ns3_get_socket_remains(data);
+ if(ns3_get_socket_is_finished(data) == 1){
+ action->finish = now;
+ surf_action_state_set(action, SURF_ACTION_DONE);
+ }
+ }
+ return;
+}
+
+/* Max durations are not supported */
+static surf_action_t communicate(const char *src_name,
+ const char *dst_name, double size, double rate)
+{
+ surf_action_t action = NULL;
+
+ XBT_DEBUG("Communicate from %s to %s",src_name,dst_name);
+ action = surf_action_new(sizeof(s_surf_action_t), size, surf_network_model, 0);
+
+ ns3_create_flow(src_name, dst_name, surf_get_clock(), size, action);
+
+ 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);
+ surf_action_free(&action);
+ return 1;
+ }
+ return 0;
}
