1 /* Copyright (c) 2009-2013. 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_platf_t routing_platf;
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 sg_platf_route_cbarg_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);
28 routing_component_full_t routing = (routing_component_full_t) rc;
31 int table_size = xbt_dynar_length(rc->index_network_elm);
33 for(src=0; src < table_size; src++) {
34 for(dst=0; dst< table_size; dst++) {
35 sg_platf_route_cbarg_t route = TO_ROUTE_FULL(src, dst);
37 if (xbt_dynar_length(route->link_list) == 1) {
38 void *link = *(void **) xbt_dynar_get_ptr(route->link_list, 0);
39 onelink_t onelink = xbt_new0(s_onelink_t, 1);
40 onelink->link_ptr = link;
41 if (rc->hierarchy == SURF_ROUTING_BASE) {
42 onelink->src = xbt_dynar_get_as(rc->index_network_elm,src,sg_routing_edge_t);
43 onelink->src->id = src;
44 onelink->dst = xbt_dynar_get_as(rc->index_network_elm,dst,sg_routing_edge_t);
45 onelink->dst->id = dst;
46 } else if (rc->hierarchy == SURF_ROUTING_RECURSIVE) {
47 onelink->src = route->gw_src;
48 onelink->dst = route->gw_dst;
50 xbt_dynar_push(ret, &onelink);
51 XBT_DEBUG("Push route from '%d' to '%d'",
61 static void full_get_route_and_latency(AS_t rc,
62 sg_routing_edge_t src, sg_routing_edge_t dst,
63 sg_platf_route_cbarg_t res, double *lat)
65 XBT_DEBUG("full_get_route_and_latency from %s[%d] to %s[%d]",
72 routing_component_full_t routing = (routing_component_full_t) rc;
73 size_t table_size = xbt_dynar_length(routing->generic_routing.index_network_elm);
75 sg_platf_route_cbarg_t e_route = NULL;
79 e_route = TO_ROUTE_FULL(src->id, dst->id);
82 res->gw_src = e_route->gw_src;
83 res->gw_dst = e_route->gw_dst;
84 xbt_dynar_foreach(e_route->link_list, cpt, link) {
85 xbt_dynar_push(res->link_list, &link);
87 *lat += surf_network_model->extension.network.get_link_latency(link);
92 static void full_finalize(AS_t rc)
94 routing_component_full_t routing = (routing_component_full_t) rc;
95 size_t table_size = xbt_dynar_length(routing->generic_routing.index_network_elm);
98 /* Delete routing table */
99 for (i = 0; i < table_size; i++)
100 for (j = 0; j < table_size; j++)
101 generic_free_route(TO_ROUTE_FULL(i, j));
102 xbt_free(routing->routing_table);
103 model_generic_finalize(rc);
107 /* Creation routing model functions */
109 AS_t model_full_create(void)
111 routing_component_full_t new_component = (routing_component_full_t)
112 model_generic_create_sized(sizeof(s_routing_component_full_t));
114 new_component->generic_routing.parse_route = model_full_set_route;
115 new_component->generic_routing.parse_ASroute = model_full_set_route;
116 new_component->generic_routing.get_route_and_latency =
117 full_get_route_and_latency;
118 new_component->generic_routing.get_graph = generic_get_graph;
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)
129 sg_platf_route_cbarg_t e_route;
132 routing_component_full_t routing =
133 ((routing_component_full_t) current_routing);
134 size_t table_size = xbt_dynar_length(routing->generic_routing.index_network_elm);
136 /* Create table if necessary */
137 if (!routing->routing_table)
138 routing->routing_table = xbt_new0(sg_platf_route_cbarg_t, table_size * table_size);
140 /* Add the loopback if needed */
141 if (routing_platf->loopback && 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_sg_platf_route_cbarg_t, 1);
146 e_route->gw_src = NULL;
147 e_route->gw_dst = NULL;
148 e_route->link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
149 xbt_dynar_push(e_route->link_list, &routing_platf->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, sg_platf_route_cbarg_t route)
164 char *src = (char*)(route->src);
165 char *dst = (char*)(route->dst);
166 sg_routing_edge_t src_net_elm, dst_net_elm;
167 src_net_elm = sg_routing_edge_by_name_or_null(src);
168 dst_net_elm = sg_routing_edge_by_name_or_null(dst);
170 xbt_assert(src_net_elm, "Network elements %s not found", src);
171 xbt_assert(dst_net_elm, "Network elements %s not found", dst);
173 routing_component_full_t routing = (routing_component_full_t) rc;
174 size_t table_size = xbt_dynar_length(routing->generic_routing.index_network_elm);
176 xbt_assert(!xbt_dynar_is_empty(route->link_list),
177 "Invalid count of links, must be greater than zero (%s,%s)",
180 if (!routing->routing_table)
181 routing->routing_table = xbt_new0(sg_platf_route_cbarg_t, table_size * table_size);
183 if (TO_ROUTE_FULL(src_net_elm->id, dst_net_elm->id)) {
186 xbt_dynar_t link_route_to_test =
187 xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
188 xbt_dynar_foreach(route->link_list, i, link_name) {
189 void *link = xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
190 xbt_assert(link, "Link : '%s' doesn't exists.", link_name);
191 xbt_dynar_push(link_route_to_test, &link);
193 if (xbt_dynar_compare(TO_ROUTE_FULL(src_net_elm->id, dst_net_elm->id)->link_list,
194 link_route_to_test, full_pointer_resource_cmp)) {
195 surf_parse_error("A route between \"%s\" and \"%s\" already exists "
196 "with a different content. "
197 "If you are trying to define a reverse route, "
198 "you must set the symmetrical=no attribute to "
199 "your routes tags.", src, dst);
201 surf_parse_warn("Ignoring the identical redefinition of the route "
202 "between \"%s\" and \"%s\"", src, dst);
205 if (!route->gw_dst && !route->gw_dst)
206 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", src, dst);
208 // FIXME We can call a gw which is down the current AS (cf g5k.xml) but not upper.
209 // AS_t subas = xbt_dict_get_or_null(rc->routing_sons, src);
210 // if (subas == NULL)
211 // surf_parse_error("The source of an ASroute must be a sub-AS "
212 // "declared within the current AS, "
213 // "but '%s' is not an AS within '%s'", src, rc->name);
214 // if (subas->to_index
215 // && xbt_dict_get_or_null(subas->to_index, route->src_gateway) == NULL)
216 // surf_parse_error("In an ASroute, source gateway must be part of "
217 // "the source sub-AS (in particular, being in a "
218 // "sub-sub-AS is not allowed), "
219 // "but '%s' is not in '%s'.",
220 // route->src_gateway, subas->name);
222 // subas = xbt_dict_get_or_null(rc->routing_sons, dst);
223 // if (subas == NULL)
224 // surf_parse_error("The destination of an ASroute must be a sub-AS "
225 // "declared within the current AS, "
226 // "but '%s' is not an AS within '%s'", dst, rc->name);
227 // if (subas->to_index
228 // && xbt_dict_get_or_null(subas->to_index, route->dst_gateway) == NULL)
229 // surf_parse_error("In an ASroute, destination gateway must be "
230 // "part of the destination sub-AS (in particular, "
231 // "in a sub-sub-AS is not allowed), "
232 // "but '%s' is not in '%s'.",
233 // route->dst_gateway, subas->name);
235 XBT_DEBUG("Load ASroute from \"%s(%s)\" to \"%s(%s)\"",
236 src, route->gw_src->name, dst, route->gw_dst->name);
237 if (route->gw_dst->rc_type == SURF_NETWORK_ELEMENT_NULL)
238 xbt_die("The dst_gateway '%s' does not exist!", route->gw_dst->name);
239 if (route->gw_src->rc_type == SURF_NETWORK_ELEMENT_NULL)
240 xbt_die("The src_gateway '%s' does not exist!", route->gw_src->name);
242 TO_ROUTE_FULL(src_net_elm->id, dst_net_elm->id) =
243 generic_new_extended_route(rc->hierarchy, route, 1);
244 xbt_dynar_shrink(TO_ROUTE_FULL(src_net_elm->id, dst_net_elm->id)->link_list, 0);
247 if ( (route->symmetrical == TRUE && as_route == 0)
248 || (route->symmetrical == TRUE && as_route == 1)
250 if (route->gw_dst && route->gw_src) {
251 sg_routing_edge_t gw_tmp;
252 gw_tmp = route->gw_src;
253 route->gw_src = route->gw_dst;
254 route->gw_dst = gw_tmp;
256 if (TO_ROUTE_FULL(dst_net_elm->id, src_net_elm->id)) {
259 xbt_dynar_t link_route_to_test =
260 xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
261 for (i = xbt_dynar_length(route->link_list); i > 0; i--) {
262 link_name = xbt_dynar_get_as(route->link_list, i - 1, void *);
263 void *link = xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
264 xbt_assert(link, "Link : '%s' doesn't exists.", link_name);
265 xbt_dynar_push(link_route_to_test, &link);
267 xbt_assert(!xbt_dynar_compare(TO_ROUTE_FULL(dst_net_elm->id, src_net_elm->id)->link_list,
269 full_pointer_resource_cmp),
270 "The route between \"%s\" and \"%s\" already exists", src,
273 if (!route->gw_dst && !route->gw_src)
274 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", dst, src);
276 XBT_DEBUG("Load ASroute from \"%s(%s)\" to \"%s(%s)\"",
277 dst, route->gw_src->name, src, route->gw_dst->name);
278 TO_ROUTE_FULL(dst_net_elm->id, src_net_elm->id) =
279 generic_new_extended_route(rc->hierarchy, route, 0);
280 xbt_dynar_shrink(TO_ROUTE_FULL(dst_net_elm->id, src_net_elm->id)->link_list, 0);
283 xbt_dynar_free(&route->link_list);