src/surf/surf_routing_cluster.c

   1 /* Copyright (c) 2009, 2010, 2011. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6 #include "surf_routing_private.h"
   7
   8 /* Global vars */
   9 extern routing_global_t global_routing;
  10
  11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_cluster, surf, "Routing part of surf");
  12
  13 /* This routing is specifically setup to represent clusters, aka homogeneous sets of machines
  14  * Note that a router is created, easing the interconnexion with the rest of the world.
  15  */
  16
  17 static xbt_dict_t cluster_host_link = NULL;
  18
  19 /* Business methods */
  20 static route_extended_t cluster_get_route(AS_t as,
  21                                           const char *src,
  22                                           const char *dst) {
  23
  24           xbt_dynar_t links_list = xbt_dynar_new(global_routing->size_of_link, NULL);
  25
  26           surf_parsing_link_up_down_t info;
  27
  28           info = xbt_dict_get_or_null(cluster_host_link,src);
  29           if(info) xbt_dynar_push_as(links_list,void*,info->link_up); //link_up
  30
  31           info = xbt_dict_get_or_null(cluster_host_link,as->name);
  32           if(info)  xbt_dynar_push_as(links_list,void*,info->link_up); //link_bb
  33
  34           info = xbt_dict_get_or_null(cluster_host_link,dst);
  35           if(info) xbt_dynar_push_as(links_list,void*,info->link_down); //link_down
  36
  37           route_extended_t new_e_route = NULL;
  38           new_e_route = xbt_new0(s_route_extended_t, 1);
  39           new_e_route->generic_route.link_list = links_list;
  40
  41           return new_e_route;
  42 }
  43
  44 static void model_cluster_finalize(AS_t as) {
  45   xbt_dict_free(&cluster_host_link);
  46   model_none_finalize(as);
  47 }
  48 /* Creation routing model functions */
  49 AS_t model_cluster_create(void)
  50 {
  51   AS_t result = model_none_create();
  52   result->get_route = cluster_get_route;
  53   result->finalize = model_cluster_finalize;
  54
  55   return (AS_t) result;
  56 }
  57
  58 void surf_routing_cluster_add_link(const char* host_id,surf_parsing_link_up_down_t info) {
  59   if(!cluster_host_link)
  60     cluster_host_link = xbt_dict_new();
  61
  62  xbt_dict_set(cluster_host_link,host_id,info,xbt_free);
  63 }