src/surf/surf_routing_full.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
   7 #include "surf_routing_private.h"
   8
   9 /* Global vars */
  10 extern routing_global_t global_routing;
  11
  12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_full, surf, "Routing part of surf");
  13
  14 #define TO_ROUTE_FULL(i,j) routing->routing_table[(i)+(j)*table_size]
  15
  16 /* Routing model structure */
  17
  18 typedef struct s_routing_component_full {
  19   s_as_t generic_routing;
  20   route_t *routing_table;
  21 } s_routing_component_full_t, *routing_component_full_t;
  22
  23 /* Business methods */
  24 static xbt_dynar_t full_get_onelink_routes(AS_t rc)
  25 {
  26   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
  27
  28   routing_component_full_t routing = (routing_component_full_t) rc;
  29   size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
  30   xbt_dict_cursor_t c1 = NULL, c2 = NULL;
  31   char *k1, *d1, *k2, *d2;
  32   xbt_dict_foreach(routing->generic_routing.to_index, c1, k1, d1) {
  33     xbt_dict_foreach(routing->generic_routing.to_index, c2, k2, d2) {
  34       int *src_id = xbt_dict_get_or_null(routing->generic_routing.to_index, k1);
  35       int *dst_id = xbt_dict_get_or_null(routing->generic_routing.to_index, k2);
  36       xbt_assert(src_id
  37                   && dst_id,
  38                   "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",
  39                   k1, k2);
  40       route_t route = TO_ROUTE_FULL(*src_id, *dst_id);
  41       if (route) {
  42         if (xbt_dynar_length(route->link_list) == 1) {
  43           void *link =
  44               *(void **) xbt_dynar_get_ptr(route->link_list,
  45                                            0);
  46           onelink_t onelink = xbt_new0(s_onelink_t, 1);
  47           onelink->link_ptr = link;
  48           if (routing->generic_routing.hierarchy == SURF_ROUTING_BASE) {
  49             onelink->src = xbt_strdup(k1);
  50             onelink->dst = xbt_strdup(k2);
  51           } else if (routing->generic_routing.hierarchy ==
  52                      SURF_ROUTING_RECURSIVE) {
  53             onelink->src = xbt_strdup(route->src_gateway);
  54             onelink->dst = xbt_strdup(route->dst_gateway);
  55           }
  56           xbt_dynar_push(ret, &onelink);
  57         }
  58       }
  59     }
  60   }
  61   return ret;
  62 }
  63
  64 static void full_get_route(AS_t rc,
  65                            const char *src, const char *dst,
  66                            route_t res)
  67 {
  68   xbt_assert(rc && src
  69               && dst,
  70               "Invalid params for \"get_route\" function at AS \"%s\"",
  71               rc->name);
  72
  73   /* set utils vars */
  74   routing_component_full_t routing = (routing_component_full_t) rc;
  75   size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
  76
  77   int *src_id = xbt_dict_get_or_null(routing->generic_routing.to_index, src);
  78   int *dst_id = xbt_dict_get_or_null(routing->generic_routing.to_index, dst);
  79   xbt_assert(src_id
  80               && dst_id,
  81               "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",
  82               src, dst);
  83
  84   route_t e_route = NULL;
  85   void *link;
  86   unsigned int cpt = 0;
  87
  88   e_route = TO_ROUTE_FULL(*src_id, *dst_id);
  89
  90   if (e_route) {
  91     res->src_gateway = xbt_strdup(e_route->src_gateway);
  92     res->dst_gateway = xbt_strdup(e_route->dst_gateway);
  93     xbt_dynar_foreach(e_route->link_list, cpt, link) {
  94       xbt_dynar_push(res->link_list, &link);
  95     }
  96   }
  97 }
  98
  99 static void full_finalize(AS_t rc)
 100 {
 101   routing_component_full_t routing = (routing_component_full_t) rc;
 102   size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
 103   int i, j;
 104   if (routing) {
 105     /* Delete routing table */
 106     for (i = 0; i < table_size; i++)
 107       for (j = 0; j < table_size; j++)
 108         generic_free_route(TO_ROUTE_FULL(i, j));
 109     xbt_free(routing->routing_table);
 110     model_generic_finalize(rc);
 111   }
 112 }
 113
 114 /* Creation routing model functions */
 115
 116 AS_t model_full_create(void)
 117 {
 118   routing_component_full_t new_component = (routing_component_full_t)
 119       model_generic_create_sized(sizeof(s_routing_component_full_t));
 120
 121   new_component->generic_routing.parse_route = model_full_set_route;
 122   new_component->generic_routing.parse_ASroute = model_full_set_route;
 123   new_component->generic_routing.get_route = full_get_route;
 124   new_component->generic_routing.get_onelink_routes =
 125       full_get_onelink_routes;
 126   new_component->generic_routing.finalize = full_finalize;
 127
 128   return (AS_t) new_component;
 129 }
 130
 131 void model_full_end(AS_t current_routing)
 132 {
 133   unsigned int i;
 134   route_t e_route;
 135
 136   /* set utils vars */
 137   routing_component_full_t routing =
 138       ((routing_component_full_t) current_routing);
 139   size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
 140
 141   /* Create table if necessary */
 142   if(!routing->routing_table)
 143           routing->routing_table = xbt_new0(route_t, table_size * table_size);
 144
 145   /* Add the loopback if needed */
 146   if (current_routing->hierarchy == SURF_ROUTING_BASE) {
 147     for (i = 0; i < table_size; i++) {
 148       e_route = TO_ROUTE_FULL(i, i);
 149       if (!e_route) {
 150         e_route = xbt_new0(s_route_t, 1);
 151         e_route->src_gateway = NULL;
 152         e_route->dst_gateway = NULL;
 153         e_route->link_list = xbt_dynar_new(global_routing->size_of_link, NULL);
 154         xbt_dynar_push(e_route->link_list,
 155                        &global_routing->loopback);
 156         TO_ROUTE_FULL(i, i) = e_route;
 157       }
 158     }
 159   }
 160 }
 161
 162 static int surf_pointer_resource_cmp(const void *a, const void *b) {
 163   return a != b;
 164 }
 165
 166 void model_full_set_route(AS_t rc, const char *src,
 167                 const char *dst, route_t route)
 168 {
 169         int *src_id, *dst_id;
 170         src_id = xbt_dict_get_or_null(rc->to_index, src);
 171         dst_id = xbt_dict_get_or_null(rc->to_index, dst);
 172         routing_component_full_t routing = ((routing_component_full_t) rc);
 173         size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
 174
 175         xbt_assert(src_id, "Network elements %s not found", src);
 176         xbt_assert(dst_id, "Network elements %s not found", dst);
 177
 178         xbt_assert(!xbt_dynar_is_empty(route->link_list),
 179                           "Invalid count of links, must be greater than zero (%s,%s)",
 180                           src, dst);
 181
 182         if(!routing->routing_table)
 183                 routing->routing_table = xbt_new0(route_t, table_size * table_size);
 184
 185         if(TO_ROUTE_FULL(*src_id, *dst_id))
 186         {
 187                 char * link_name;
 188                 unsigned int i;
 189                 xbt_dynar_t link_route_to_test = xbt_dynar_new(global_routing->size_of_link, NULL);
 190                 xbt_dynar_foreach(route->link_list,i,link_name)
 191                 {
 192                         void *link = xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
 193                         xbt_assert(link,"Link : '%s' doesn't exists.",link_name);
 194                         xbt_dynar_push(link_route_to_test,&link);
 195                 }
 196                 xbt_assert(!xbt_dynar_compare(
 197                           (void*)TO_ROUTE_FULL(*src_id, *dst_id)->link_list,
 198                           (void*)link_route_to_test,
 199                           (int_f_cpvoid_cpvoid_t) surf_pointer_resource_cmp),
 200                           "The route between \"%s\" and \"%s\" already exists. If you are trying to define a reverse route, you must set the symmetrical=no attribute to your routes tags.", src,dst);
 201         }
 202         else
 203         {
 204                   if(!route->dst_gateway && !route->src_gateway)
 205                           XBT_DEBUG("Load Route from \"%s\" to \"%s\"", src, dst);
 206                   else{
 207                           XBT_DEBUG("Load ASroute from \"%s(%s)\" to \"%s(%s)\"", src,
 208                                  route->src_gateway, dst, route->dst_gateway);
 209                           if(routing_get_network_element_type((const char*)route->dst_gateway) == SURF_NETWORK_ELEMENT_NULL)
 210                                   xbt_die("The dst_gateway '%s' does not exist!",route->dst_gateway);
 211                           if(routing_get_network_element_type((const char*)route->src_gateway) == SURF_NETWORK_ELEMENT_NULL)
 212                                   xbt_die("The src_gateway '%s' does not exist!",route->src_gateway);
 213                   }
 214               TO_ROUTE_FULL(*src_id, *dst_id) = generic_new_extended_route(rc->hierarchy,route,1);
 215               xbt_dynar_shrink(TO_ROUTE_FULL(*src_id, *dst_id)->link_list, 0);
 216         }
 217
 218         if( A_surfxml_route_symmetrical == A_surfxml_route_symmetrical_YES
 219                 || A_surfxml_ASroute_symmetrical == A_surfxml_ASroute_symmetrical_YES )
 220         {
 221                 if(route->dst_gateway && route->src_gateway)
 222                 {
 223                   char *gw_tmp ;
 224                   gw_tmp = route->src_gateway;
 225                   route->src_gateway = route->dst_gateway;
 226                   route->dst_gateway = gw_tmp;
 227                 }
 228                 if(TO_ROUTE_FULL(*dst_id, *src_id))
 229                 {
 230                         char * link_name;
 231                         unsigned int i;
 232                         xbt_dynar_t link_route_to_test = xbt_dynar_new(global_routing->size_of_link, NULL);
 233                         for(i=xbt_dynar_length(route->link_list) ;i>0 ;i--)
 234                         {
 235                                 link_name = xbt_dynar_get_as(route->link_list,i-1,void *);
 236                                 void *link = xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
 237                                 xbt_assert(link,"Link : '%s' doesn't exists.",link_name);
 238                                 xbt_dynar_push(link_route_to_test,&link);
 239                         }
 240                         xbt_assert(!xbt_dynar_compare(
 241                                   (void*)TO_ROUTE_FULL(*dst_id, *src_id)->link_list,
 242                               (void*)link_route_to_test,
 243                                   (int_f_cpvoid_cpvoid_t) surf_pointer_resource_cmp),
 244                                   "The route between \"%s\" and \"%s\" already exists", src,dst);
 245                 }
 246                 else
 247                 {
 248                           if(!route->dst_gateway && !route->src_gateway)
 249                                   XBT_DEBUG("Load Route from \"%s\" to \"%s\"", dst, src);
 250                           else
 251                                   XBT_DEBUG("Load ASroute from \"%s(%s)\" to \"%s(%s)\"", dst,
 252                                          route->src_gateway, src, route->dst_gateway);
 253                       TO_ROUTE_FULL(*dst_id, *src_id) = generic_new_extended_route(rc->hierarchy,route,0);
 254                       xbt_dynar_shrink(TO_ROUTE_FULL(*dst_id, *src_id)->link_list, 0);
 255                 }
 256         }
 257
 258         generic_free_route((route_t)route) ;
 259 }