1 /* Copyright (c) 2009-2015. 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 "src/surf/surf_routing_private.hpp"
8 #include "src/surf/surf_routing_full.hpp"
9 #include "src/surf/network_interface.hpp"
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_full, surf, "Routing part of surf");
13 #define TO_ROUTE_FULL(i,j) p_routingTable[(i)+(j)*table_size]
17 AsFull::AsFull(const char*name)
24 sg_platf_route_cbarg_t e_route;
27 int table_size = (int)xbt_dynar_length(p_indexNetworkElm);
29 /* Create table if necessary */
31 p_routingTable = xbt_new0(sg_platf_route_cbarg_t, table_size * table_size);
33 /* Add the loopback if needed */
34 if (routing_platf->p_loopback && hierarchy_ == SURF_ROUTING_BASE) {
35 for (i = 0; i < table_size; i++) {
36 e_route = TO_ROUTE_FULL(i, i);
38 e_route = xbt_new0(s_sg_platf_route_cbarg_t, 1);
39 e_route->gw_src = NULL;
40 e_route->gw_dst = NULL;
41 e_route->link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
42 xbt_dynar_push(e_route->link_list, &routing_platf->p_loopback);
43 TO_ROUTE_FULL(i, i) = e_route;
51 int table_size = (int)xbt_dynar_length(p_indexNetworkElm);
53 /* Delete routing table */
54 for (i = 0; i < table_size; i++)
55 for (j = 0; j < table_size; j++) {
56 if (TO_ROUTE_FULL(i,j)){
57 xbt_dynar_free(&TO_ROUTE_FULL(i,j)->link_list);
58 xbt_free(TO_ROUTE_FULL(i,j));
61 xbt_free(p_routingTable);
65 xbt_dynar_t AsFull::getOneLinkRoutes()
67 xbt_dynar_t ret = xbt_dynar_new(sizeof(Onelink*), xbt_free_f);
70 int table_size = xbt_dynar_length(p_indexNetworkElm);
72 for(src=0; src < table_size; src++) {
73 for(dst=0; dst< table_size; dst++) {
74 sg_platf_route_cbarg_t route = TO_ROUTE_FULL(src,dst);
76 if (xbt_dynar_length(route->link_list) == 1) {
77 void *link = *(void **) xbt_dynar_get_ptr(route->link_list, 0);
79 if (hierarchy_ == SURF_ROUTING_BASE) {
80 NetCard *tmp_src = xbt_dynar_get_as(p_indexNetworkElm, src, sg_netcard_t);
82 NetCard *tmp_dst = xbt_dynar_get_as(p_indexNetworkElm, dst, sg_netcard_t);
84 onelink = new Onelink(link, tmp_src, tmp_dst);
85 } else if (hierarchy_ == SURF_ROUTING_RECURSIVE)
86 onelink = new Onelink(link, route->gw_src, route->gw_dst);
88 onelink = new Onelink(link, NULL, NULL);
89 xbt_dynar_push(ret, &onelink);
90 XBT_DEBUG("Push route from '%d' to '%d'",
100 void AsFull::getRouteAndLatency(NetCard *src, NetCard *dst, sg_platf_route_cbarg_t res, double *lat)
102 XBT_DEBUG("full_get_route_and_latency from %s[%d] to %s[%d]",
109 size_t table_size = xbt_dynar_length(p_indexNetworkElm);
111 sg_platf_route_cbarg_t e_route = NULL;
113 unsigned int cpt = 0;
115 e_route = TO_ROUTE_FULL(src->getId(), dst->getId());
118 res->gw_src = e_route->gw_src;
119 res->gw_dst = e_route->gw_dst;
120 xbt_dynar_foreach(e_route->link_list, cpt, link) {
121 xbt_dynar_push(res->link_list, &link);
123 *lat += static_cast<Link*>(link)->getLatency();
128 void AsFull::parseASroute(sg_platf_route_cbarg_t route){
132 static int full_pointer_resource_cmp(const void *a, const void *b)
137 void AsFull::parseRoute(sg_platf_route_cbarg_t route)
140 char *src = (char*)(route->src);
141 char *dst = (char*)(route->dst);
142 NetCard *src_net_elm, *dst_net_elm;
143 src_net_elm = sg_netcard_by_name_or_null(src);
144 dst_net_elm = sg_netcard_by_name_or_null(dst);
146 xbt_assert(src_net_elm, "Network elements %s not found", src);
147 xbt_assert(dst_net_elm, "Network elements %s not found", dst);
149 size_t table_size = xbt_dynar_length(p_indexNetworkElm);
151 xbt_assert(!xbt_dynar_is_empty(route->link_list),
152 "Invalid count of links, must be greater than zero (%s,%s)",
156 p_routingTable = xbt_new0(sg_platf_route_cbarg_t, table_size * table_size);
158 if (TO_ROUTE_FULL(src_net_elm->getId(), dst_net_elm->getId())) {
161 xbt_dynar_t link_route_to_test =
162 xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
163 xbt_dynar_foreach(route->link_list, i, link_name) {
164 void *link = Link::byName(link_name);
165 xbt_assert(link, "Link : '%s' doesn't exists.", link_name);
166 xbt_dynar_push(link_route_to_test, &link);
168 if (xbt_dynar_compare(TO_ROUTE_FULL(src_net_elm->getId(), dst_net_elm->getId())->link_list,
169 link_route_to_test, full_pointer_resource_cmp)) {
170 surf_parse_error("A route between \"%s\" and \"%s\" already exists "
171 "with a different content. "
172 "If you are trying to define a reverse route, "
173 "you must set the symmetrical=no attribute to "
174 "your routes tags.", src, dst);
176 surf_parse_warn("Ignoring the identical redefinition of the route "
177 "between \"%s\" and \"%s\"", src, dst);
180 if (!route->gw_src && !route->gw_dst)
181 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", src, dst);
183 // FIXME We can call a gw which is down the current AS (cf g5k.xml) but not upper.
184 // AS_t subas = xbt_dict_get_or_null(rc->routing_sons, src);
185 // if (subas == NULL)
186 // surf_parse_error("The source of an ASroute must be a sub-AS "
187 // "declared within the current AS, "
188 // "but '%s' is not an AS within '%s'", src, rc->name);
189 // if (subas->to_index
190 // && xbt_dict_get_or_null(subas->to_index, route->src_gateway) == NULL)
191 // surf_parse_error("In an ASroute, source gateway must be part of "
192 // "the source sub-AS (in particular, being in a "
193 // "sub-sub-AS is not allowed), "
194 // "but '%s' is not in '%s'.",
195 // route->src_gateway, subas->name);
197 // subas = xbt_dict_get_or_null(rc->routing_sons, dst);
198 // if (subas == NULL)
199 // surf_parse_error("The destination of an ASroute must be a sub-AS "
200 // "declared within the current AS, "
201 // "but '%s' is not an AS within '%s'", dst, rc->name);
202 // if (subas->to_index
203 // && xbt_dict_get_or_null(subas->to_index, route->dst_gateway) == NULL)
204 // surf_parse_error("In an ASroute, destination gateway must be "
205 // "part of the destination sub-AS (in particular, "
206 // "in a sub-sub-AS is not allowed), "
207 // "but '%s' is not in '%s'.",
208 // route->dst_gateway, subas->name);
210 XBT_DEBUG("Load ASroute from \"%s\" to \"%s\"", src, dst);
211 if (!route->gw_src ||
212 route->gw_src->getRcType() == SURF_NETWORK_ELEMENT_NULL)
213 surf_parse_error("The src_gateway \"%s\" does not exist!",
214 route->gw_src ? route->gw_src->getName() : "(null)");
215 if (!route->gw_dst ||
216 route->gw_dst->getRcType() == SURF_NETWORK_ELEMENT_NULL)
217 surf_parse_error("The dst_gateway \"%s\" does not exist!",
218 route->gw_dst ? route->gw_dst->getName() : "(null)");
219 XBT_DEBUG("ASroute goes from \"%s\" to \"%s\"",
220 route->gw_src->getName(), route->gw_dst->getName());
222 TO_ROUTE_FULL(src_net_elm->getId(), dst_net_elm->getId()) = newExtendedRoute(hierarchy_, route, 1);
223 xbt_dynar_shrink(TO_ROUTE_FULL(src_net_elm->getId(), dst_net_elm->getId())->link_list, 0);
226 if ( (route->symmetrical == TRUE && as_route == 0)
227 || (route->symmetrical == TRUE && as_route == 1)
229 if (route->gw_dst && route->gw_src) {
231 gw_tmp = route->gw_src;
232 route->gw_src = route->gw_dst;
233 route->gw_dst = gw_tmp;
235 if (TO_ROUTE_FULL(dst_net_elm->getId(), src_net_elm->getId())) {
238 xbt_dynar_t link_route_to_test =
239 xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
240 for (i = xbt_dynar_length(route->link_list); i > 0; i--) {
241 link_name = xbt_dynar_get_as(route->link_list, i - 1, char *);
242 void *link = Link::byName(link_name);
243 xbt_assert(link, "Link : '%s' doesn't exists.", link_name);
244 xbt_dynar_push(link_route_to_test, &link);
246 xbt_assert(!xbt_dynar_compare(TO_ROUTE_FULL(dst_net_elm->getId(), src_net_elm->getId())->link_list,
248 full_pointer_resource_cmp),
249 "The route between \"%s\" and \"%s\" already exists", src,
252 if (!route->gw_dst && !route->gw_src)
253 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", dst, src);
255 XBT_DEBUG("Load ASroute from \"%s(%s)\" to \"%s(%s)\"",
256 dst, route->gw_src->getName(), src, route->gw_dst->getName());
257 TO_ROUTE_FULL(dst_net_elm->getId(), src_net_elm->getId()) = newExtendedRoute(hierarchy_, route, 0);
258 xbt_dynar_shrink(TO_ROUTE_FULL(dst_net_elm->getId(), src_net_elm->getId())->link_list, 0);
261 xbt_dynar_free(&route->link_list);