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; /* for tag cluster */
  18
  19 typedef struct {
  20   s_routing_component_t generic_routing;
  21   xbt_dict_t dict_processing_units;
  22   xbt_dict_t dict_autonomous_systems;
  23 } s_routing_component_cluster_t, *routing_component_cluster_t;
  24
  25 /* Business methods */
  26 static route_extended_t cluster_get_route(routing_component_t rc,
  27                                             const char *src,
  28                                             const char *dst) {
  29
  30           xbt_dynar_t links_list = xbt_dynar_new(global_routing->size_of_link, NULL);
  31
  32           surf_parsing_link_up_down_t info;
  33
  34           info = xbt_dict_get_or_null(cluster_host_link,src);
  35           if(info) xbt_dynar_push_as(links_list,void*,info->link_up); //link_up
  36
  37           info = xbt_dict_get_or_null(cluster_host_link,rc->name);
  38           if(info)  xbt_dynar_push_as(links_list,void*,info->link_up); //link_bb
  39
  40           info = xbt_dict_get_or_null(cluster_host_link,dst);
  41           if(info) xbt_dynar_push_as(links_list,void*,info->link_down); //link_down
  42
  43           route_extended_t new_e_route = NULL;
  44           new_e_route = xbt_new0(s_route_extended_t, 1);
  45           new_e_route->generic_route.link_list = links_list;
  46
  47           return new_e_route;
  48 }
  49
  50 /* Creation routing model functions */
  51 routing_component_t model_cluster_create(void)
  52 {
  53   routing_component_t new_component = model_rulebased_create();
  54   new_component->get_route = cluster_get_route;
  55
  56   return (routing_component_t) new_component;
  57 }
  58 void model_cluster_unload(void) {
  59 //  xbt_dict_free(&cluster_host_link); //FIXME: do it once the module management is clean in routing
  60 }
  61
  62 void surf_routing_cluster_add_link(const char* host_id,surf_parsing_link_up_down_t info) {
  63   if(!cluster_host_link)
  64     cluster_host_link = xbt_dict_new();
  65
  66  xbt_dict_set(cluster_host_link,host_id,info,xbt_free);
  67 }