1 /* Copyright (c) 2009, 2010, 2011. The SimGrid Team.
2 * All rights reserved. */
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. */
7 #include "surf_routing_private.h"
10 extern routing_global_t global_routing;
11 extern int surf_parse_lineno;
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_full, surf, "Routing part of surf");
15 #define TO_ROUTE_FULL(i,j) routing->routing_table[(i)+(j)*table_size]
17 /* Routing model structure */
19 typedef struct s_routing_component_full {
20 s_as_t generic_routing;
21 route_t *routing_table;
22 } s_routing_component_full_t, *routing_component_full_t;
24 /* Business methods */
25 static xbt_dynar_t full_get_onelink_routes(AS_t rc)
27 xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
29 routing_component_full_t routing = (routing_component_full_t) rc;
30 size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
31 xbt_dict_cursor_t c1 = NULL, c2 = NULL;
32 char *k1, *d1, *k2, *d2;
33 xbt_dict_foreach(routing->generic_routing.to_index, c1, k1, d1) {
34 xbt_dict_foreach(routing->generic_routing.to_index, c2, k2, d2) {
35 int *src_id = xbt_dict_get_or_null(routing->generic_routing.to_index, k1);
36 int *dst_id = xbt_dict_get_or_null(routing->generic_routing.to_index, k2);
37 xbt_assert(src_id && dst_id,
38 "Ask for route \"from\"(%s) or \"to\"(%s) "
39 "no found in the local table", k1, k2);
40 route_t route = TO_ROUTE_FULL(*src_id, *dst_id);
42 if (xbt_dynar_length(route->link_list) == 1) {
43 void *link = *(void **) xbt_dynar_get_ptr(route->link_list, 0);
44 onelink_t onelink = xbt_new0(s_onelink_t, 1);
45 onelink->link_ptr = link;
46 if (routing->generic_routing.hierarchy == SURF_ROUTING_BASE) {
47 onelink->src = xbt_strdup(k1);
48 onelink->dst = xbt_strdup(k2);
49 } else if (routing->generic_routing.hierarchy ==
50 SURF_ROUTING_RECURSIVE) {
51 onelink->src = xbt_strdup(route->src_gateway);
52 onelink->dst = xbt_strdup(route->dst_gateway);
54 xbt_dynar_push(ret, &onelink);
62 static void full_get_route_and_latency(AS_t rc,
63 const char *src, const char *dst,
64 route_t res, double *lat)
68 routing_component_full_t routing = (routing_component_full_t) rc;
69 size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
71 int *src_id = xbt_dict_get_or_null(routing->generic_routing.to_index, src);
72 int *dst_id = xbt_dict_get_or_null(routing->generic_routing.to_index, dst);
74 if (!src_id || !dst_id)
75 THROWF(arg_error, 0, "No route from '%s' to '%s'", src, dst);
77 route_t e_route = NULL;
81 e_route = TO_ROUTE_FULL(*src_id, *dst_id);
84 res->src_gateway = xbt_strdup(e_route->src_gateway);
85 res->dst_gateway = xbt_strdup(e_route->dst_gateway);
86 xbt_dynar_foreach(e_route->link_list, cpt, link) {
87 xbt_dynar_push(res->link_list, &link);
89 *lat += surf_network_model->extension.network.get_link_latency(link);
94 static void full_finalize(AS_t rc)
96 routing_component_full_t routing = (routing_component_full_t) rc;
97 size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
100 /* Delete routing table */
101 for (i = 0; i < table_size; i++)
102 for (j = 0; j < table_size; j++)
103 generic_free_route(TO_ROUTE_FULL(i, j));
104 xbt_free(routing->routing_table);
105 model_generic_finalize(rc);
109 /* Creation routing model functions */
111 AS_t model_full_create(void)
113 routing_component_full_t new_component = (routing_component_full_t)
114 model_generic_create_sized(sizeof(s_routing_component_full_t));
116 new_component->generic_routing.parse_route = model_full_set_route;
117 new_component->generic_routing.parse_ASroute = model_full_set_route;
118 new_component->generic_routing.get_route_and_latency =
119 full_get_route_and_latency;
120 new_component->generic_routing.get_onelink_routes = full_get_onelink_routes;
121 new_component->generic_routing.finalize = full_finalize;
123 return (AS_t) new_component;
126 void model_full_end(AS_t current_routing)
132 routing_component_full_t routing =
133 ((routing_component_full_t) current_routing);
134 size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
136 /* Create table if necessary */
137 if (!routing->routing_table)
138 routing->routing_table = xbt_new0(route_t, table_size * table_size);
140 /* Add the loopback if needed */
141 if (current_routing->hierarchy == SURF_ROUTING_BASE) {
142 for (i = 0; i < table_size; i++) {
143 e_route = TO_ROUTE_FULL(i, i);
145 e_route = xbt_new0(s_route_t, 1);
146 e_route->src_gateway = NULL;
147 e_route->dst_gateway = NULL;
148 e_route->link_list = xbt_dynar_new(global_routing->size_of_link, NULL);
149 xbt_dynar_push(e_route->link_list, &global_routing->loopback);
150 TO_ROUTE_FULL(i, i) = e_route;
156 static int full_pointer_resource_cmp(const void *a, const void *b)
161 void model_full_set_route(AS_t rc, const char *src,
162 const char *dst, route_t route)
164 int *src_id, *dst_id;
165 src_id = xbt_dict_get_or_null(rc->to_index, src);
166 dst_id = xbt_dict_get_or_null(rc->to_index, dst);
167 routing_component_full_t routing = (routing_component_full_t) rc;
168 size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
170 xbt_assert(src_id, "Network elements %s not found", src);
171 xbt_assert(dst_id, "Network elements %s not found", dst);
173 xbt_assert(!xbt_dynar_is_empty(route->link_list),
174 "Invalid count of links, must be greater than zero (%s,%s)",
177 if (!routing->routing_table)
178 routing->routing_table = xbt_new0(route_t, table_size * table_size);
180 if (TO_ROUTE_FULL(*src_id, *dst_id)) {
183 xbt_dynar_t link_route_to_test =
184 xbt_dynar_new(global_routing->size_of_link, NULL);
185 xbt_dynar_foreach(route->link_list, i, link_name) {
186 void *link = xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
187 xbt_assert(link, "Link : '%s' doesn't exists.", link_name);
188 xbt_dynar_push(link_route_to_test, &link);
190 if (xbt_dynar_compare(TO_ROUTE_FULL(*src_id, *dst_id)->link_list,
191 link_route_to_test, full_pointer_resource_cmp)) {
192 surf_parse_error("A route between \"%s\" and \"%s\" already exists "
193 "with a different content. "
194 "If you are trying to define a reverse route, "
195 "you must set the symmetrical=no attribute to "
196 "your routes tags.", src, dst);
198 surf_parse_warn("Ignoring the identical redefinition of the route "
199 "between \"%s\" and \"%s\"", src, dst);
202 if (!route->dst_gateway && !route->src_gateway)
203 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", src, dst);
205 AS_t subas = xbt_dict_get_or_null(rc->routing_sons, src);
207 surf_parse_error("The source of an ASroute must be a sub-AS "
208 "declared within the current AS, "
209 "but '%s' is not an AS within '%s'", src, rc->name);
211 && xbt_dict_get_or_null(subas->to_index, route->src_gateway) == NULL)
212 surf_parse_error("In an ASroute, source gateway must be part of "
213 "the source sub-AS (in particular, being in a "
214 "sub-sub-AS is not allowed), "
215 "but '%s' is not in '%s'.",
216 route->src_gateway, subas->name);
218 subas = xbt_dict_get_or_null(rc->routing_sons, dst);
220 surf_parse_error("The destination of an ASroute must be a sub-AS "
221 "declared within the current AS, "
222 "but '%s' is not an AS within '%s'", dst, rc->name);
224 && xbt_dict_get_or_null(subas->to_index, route->dst_gateway) == NULL)
225 surf_parse_error("In an ASroute, destination gateway must be "
226 "part of the destination sub-AS (in particular, "
227 "in a sub-sub-AS is not allowed), "
228 "but '%s' is not in '%s'.",
229 route->dst_gateway, subas->name);
231 XBT_DEBUG("Load ASroute from \"%s(%s)\" to \"%s(%s)\"",
232 src, route->src_gateway, dst, route->dst_gateway);
233 if (routing_get_network_element_type(route->dst_gateway) ==
234 SURF_NETWORK_ELEMENT_NULL)
235 xbt_die("The dst_gateway '%s' does not exist!", route->dst_gateway);
236 if (routing_get_network_element_type(route->src_gateway) ==
237 SURF_NETWORK_ELEMENT_NULL)
238 xbt_die("The src_gateway '%s' does not exist!", route->src_gateway);
240 TO_ROUTE_FULL(*src_id, *dst_id) =
241 generic_new_extended_route(rc->hierarchy, route, 1);
242 xbt_dynar_shrink(TO_ROUTE_FULL(*src_id, *dst_id)->link_list, 0);
245 if (A_surfxml_route_symmetrical == A_surfxml_route_symmetrical_YES
246 || A_surfxml_ASroute_symmetrical == A_surfxml_ASroute_symmetrical_YES) {
247 if (route->dst_gateway && route->src_gateway) {
249 gw_tmp = route->src_gateway;
250 route->src_gateway = route->dst_gateway;
251 route->dst_gateway = gw_tmp;
253 if (TO_ROUTE_FULL(*dst_id, *src_id)) {
256 xbt_dynar_t link_route_to_test =
257 xbt_dynar_new(global_routing->size_of_link, NULL);
258 for (i = xbt_dynar_length(route->link_list); i > 0; i--) {
259 link_name = xbt_dynar_get_as(route->link_list, i - 1, void *);
260 void *link = xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
261 xbt_assert(link, "Link : '%s' doesn't exists.", link_name);
262 xbt_dynar_push(link_route_to_test, &link);
264 xbt_assert(!xbt_dynar_compare(TO_ROUTE_FULL(*dst_id, *src_id)->link_list,
266 full_pointer_resource_cmp),
267 "The route between \"%s\" and \"%s\" already exists", src,
270 if (!route->dst_gateway && !route->src_gateway)
271 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", dst, src);
273 XBT_DEBUG("Load ASroute from \"%s(%s)\" to \"%s(%s)\"",
274 dst, route->src_gateway, src, route->dst_gateway);
275 TO_ROUTE_FULL(*dst_id, *src_id) =
276 generic_new_extended_route(rc->hierarchy, route, 0);
277 xbt_dynar_shrink(TO_ROUTE_FULL(*dst_id, *src_id)->link_list, 0);