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[simgrid.git] / 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 extern routing_component_t current_routing;
12 extern routing_model_description_t current_routing_model;
13
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_full, surf, "Routing part of surf");
15
16 #define TO_ROUTE_FULL(i,j) routing->routing_table[(i)+(j)*table_size]
17
18 /* Routing model structure */
19
20 typedef struct s_routing_component_full {
21   s_routing_component_t generic_routing;
22   route_extended_t *routing_table;
23 } s_routing_component_full_t, *routing_component_full_t;
24
25 /* Business methods */
26 static xbt_dynar_t full_get_onelink_routes(routing_component_t rc)
27 {
28   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
29
30   routing_component_full_t routing = (routing_component_full_t) rc;
31   size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
32   xbt_dict_cursor_t c1 = NULL, c2 = NULL;
33   char *k1, *d1, *k2, *d2;
34   xbt_dict_foreach(routing->generic_routing.to_index, c1, k1, d1) {
35     xbt_dict_foreach(routing->generic_routing.to_index, c2, k2, d2) {
36       int *src_id = xbt_dict_get_or_null(routing->generic_routing.to_index, k1);
37       int *dst_id = xbt_dict_get_or_null(routing->generic_routing.to_index, k2);
38       xbt_assert(src_id
39                   && dst_id,
40                   "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",
41                   k1, k2);
42       route_extended_t route = TO_ROUTE_FULL(*src_id, *dst_id);
43       if (route) {
44         if (xbt_dynar_length(route->generic_route.link_list) == 1) {
45           void *link =
46               *(void **) xbt_dynar_get_ptr(route->generic_route.link_list,
47                                            0);
48           onelink_t onelink = xbt_new0(s_onelink_t, 1);
49           onelink->link_ptr = link;
50           if (routing->generic_routing.hierarchy == SURF_ROUTING_BASE) {
51             onelink->src = xbt_strdup(k1);
52             onelink->dst = xbt_strdup(k2);
53           } else if (routing->generic_routing.hierarchy ==
54                      SURF_ROUTING_RECURSIVE) {
55             onelink->src = xbt_strdup(route->src_gateway);
56             onelink->dst = xbt_strdup(route->dst_gateway);
57           }
58           xbt_dynar_push(ret, &onelink);
59         }
60       }
61     }
62   }
63   return ret;
64 }
65
66 static route_extended_t full_get_route(routing_component_t rc,
67                                        const char *src, const char *dst)
68 {
69   xbt_assert(rc && src
70               && dst,
71               "Invalid params for \"get_route\" function at AS \"%s\"",
72               rc->name);
73
74   /* set utils vars */
75   routing_component_full_t routing = (routing_component_full_t) rc;
76   size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
77
78   int *src_id = xbt_dict_get_or_null(routing->generic_routing.to_index, src);
79   int *dst_id = xbt_dict_get_or_null(routing->generic_routing.to_index, dst);
80   xbt_assert(src_id
81               && dst_id,
82               "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",
83               src, dst);
84
85   route_extended_t e_route = NULL;
86   route_extended_t new_e_route = NULL;
87   void *link;
88   unsigned int cpt = 0;
89
90   e_route = TO_ROUTE_FULL(*src_id, *dst_id);
91
92   if (e_route) {
93     new_e_route = xbt_new0(s_route_extended_t, 1);
94     new_e_route->src_gateway = xbt_strdup(e_route->src_gateway);
95     new_e_route->dst_gateway = xbt_strdup(e_route->dst_gateway);
96     new_e_route->generic_route.link_list =
97         xbt_dynar_new(global_routing->size_of_link, NULL);
98     xbt_dynar_foreach(e_route->generic_route.link_list, cpt, link) {
99       xbt_dynar_push(new_e_route->generic_route.link_list, &link);
100     }
101   }
102   return new_e_route;
103 }
104
105 static void full_finalize(routing_component_t rc)
106 {
107   routing_component_full_t routing = (routing_component_full_t) rc;
108   size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
109   int i, j;
110   if (routing) {
111     /* Delete routing table */
112     for (i = 0; i < table_size; i++)
113       for (j = 0; j < table_size; j++)
114         generic_free_extended_route(TO_ROUTE_FULL(i, j));
115     xbt_free(routing->routing_table);
116     /* Delete bypass dict */
117     xbt_dict_free(&rc->bypassRoutes);
118     /* Delete index dict */
119     xbt_dict_free(&rc->to_index);
120     /* Delete structure */
121     xbt_free(rc);
122   }
123 }
124
125 /* Creation routing model functions */
126
127 routing_component_t model_full_create(void)
128 {
129   routing_component_full_t new_component = (routing_component_full_t)
130       routmod_generic_create(sizeof(s_routing_component_full_t));
131
132   new_component->generic_routing.parse_route = model_full_set_route;
133   new_component->generic_routing.parse_ASroute = model_full_set_route;
134   new_component->generic_routing.get_route = full_get_route;
135   new_component->generic_routing.get_onelink_routes =
136       full_get_onelink_routes;
137   new_component->generic_routing.finalize = full_finalize;
138
139   return (routing_component_t) new_component;
140 }
141
142 void model_full_end(void)
143 {
144   unsigned int i;
145   route_extended_t e_route;
146
147   /* set utils vars */
148   routing_component_full_t routing =
149       ((routing_component_full_t) current_routing);
150   size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
151
152   /* Create table if necessary */
153   if(!routing->routing_table)
154           routing->routing_table = xbt_new0(route_extended_t, table_size * table_size);
155
156   /* Add the loopback if needed */
157   if (current_routing->hierarchy == SURF_ROUTING_BASE) {
158     for (i = 0; i < table_size; i++) {
159       e_route = TO_ROUTE_FULL(i, i);
160       if (!e_route) {
161         e_route = xbt_new0(s_route_extended_t, 1);
162         e_route->src_gateway = NULL;
163         e_route->dst_gateway = NULL;
164         e_route->generic_route.link_list =
165             xbt_dynar_new(global_routing->size_of_link, NULL);
166         xbt_dynar_push(e_route->generic_route.link_list,
167                        &global_routing->loopback);
168         TO_ROUTE_FULL(i, i) = e_route;
169       }
170     }
171   }
172 }
173
174 static int surf_pointer_resource_cmp(const void *a, const void *b) {
175   return a != b;
176 }
177
178 void model_full_set_route(routing_component_t rc, const char *src,
179                 const char *dst, name_route_extended_t route)
180 {
181         int *src_id, *dst_id;
182         src_id = xbt_dict_get_or_null(rc->to_index, src);
183         dst_id = xbt_dict_get_or_null(rc->to_index, dst);
184         routing_component_full_t routing = ((routing_component_full_t) rc);
185         size_t table_size = xbt_dict_length(routing->generic_routing.to_index);
186
187         xbt_assert(src_id, "Network elements %s not found", src);
188         xbt_assert(dst_id, "Network elements %s not found", dst);
189
190         xbt_assert(xbt_dynar_length(route->generic_route.link_list) > 0,
191                           "Invalid count of links, must be greater than zero (%s,%s)",
192                           src, dst);
193
194         if(!routing->routing_table)
195                 routing->routing_table = xbt_new0(route_extended_t, table_size * table_size);
196
197         if(TO_ROUTE_FULL(*src_id, *dst_id))
198         {
199                 char * link_name;
200                 unsigned int i;
201                 xbt_dynar_t link_route_to_test = xbt_dynar_new(global_routing->size_of_link, NULL);
202                 xbt_dynar_foreach(route->generic_route.link_list,i,link_name)
203                 {
204                         void *link = xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
205                         xbt_assert(link,"Link : '%s' doesn't exists.",link_name);
206                         xbt_dynar_push(link_route_to_test,&link);
207                 }
208                 xbt_assert(!xbt_dynar_compare(
209                           (void*)TO_ROUTE_FULL(*src_id, *dst_id)->generic_route.link_list,
210                           (void*)link_route_to_test,
211                           (int_f_cpvoid_cpvoid_t) surf_pointer_resource_cmp),
212                           "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);
213         }
214         else
215         {
216                   if(!route->dst_gateway && !route->src_gateway)
217                           XBT_DEBUG("Load Route from \"%s\" to \"%s\"", src, dst);
218                   else{
219                           XBT_DEBUG("Load ASroute from \"%s(%s)\" to \"%s(%s)\"", src,
220                                  route->src_gateway, dst, route->dst_gateway);
221                           if(global_routing->get_network_element_type((const char*)route->dst_gateway) == SURF_NETWORK_ELEMENT_NULL)
222                                   xbt_die("The dst_gateway '%s' does not exist!",route->dst_gateway);
223                           if(global_routing->get_network_element_type((const char*)route->src_gateway) == SURF_NETWORK_ELEMENT_NULL)
224                                   xbt_die("The src_gateway '%s' does not exist!",route->src_gateway);
225                   }
226               TO_ROUTE_FULL(*src_id, *dst_id) = generic_new_extended_route(rc->hierarchy,route,1);
227               xbt_dynar_shrink(TO_ROUTE_FULL(*src_id, *dst_id)->generic_route.link_list, 0);
228         }
229
230         if( A_surfxml_route_symmetrical == A_surfxml_route_symmetrical_YES
231                 || A_surfxml_ASroute_symmetrical == A_surfxml_ASroute_symmetrical_YES )
232         {
233                 if(route->dst_gateway && route->src_gateway)
234                 {
235                   char *gw_tmp ;
236                   gw_tmp = route->src_gateway;
237                   route->src_gateway = route->dst_gateway;
238                   route->dst_gateway = gw_tmp;
239                 }
240                 if(TO_ROUTE_FULL(*dst_id, *src_id))
241                 {
242                         char * link_name;
243                         unsigned int i;
244                         xbt_dynar_t link_route_to_test = xbt_dynar_new(global_routing->size_of_link, NULL);
245                         for(i=xbt_dynar_length(route->generic_route.link_list) ;i>0 ;i--)
246                         {
247                                 link_name = xbt_dynar_get_as(route->generic_route.link_list,i-1,void *);
248                                 void *link = xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
249                                 xbt_assert(link,"Link : '%s' doesn't exists.",link_name);
250                                 xbt_dynar_push(link_route_to_test,&link);
251                         }
252                         xbt_assert(!xbt_dynar_compare(
253                                   (void*)TO_ROUTE_FULL(*dst_id, *src_id)->generic_route.link_list,
254                               (void*)link_route_to_test,
255                                   (int_f_cpvoid_cpvoid_t) surf_pointer_resource_cmp),
256                                   "The route between \"%s\" and \"%s\" already exists", src,dst);
257                 }
258                 else
259                 {
260                           if(!route->dst_gateway && !route->src_gateway)
261                                   XBT_DEBUG("Load Route from \"%s\" to \"%s\"", dst, src);
262                           else
263                                   XBT_DEBUG("Load ASroute from \"%s(%s)\" to \"%s(%s)\"", dst,
264                                          route->src_gateway, src, route->dst_gateway);
265                       TO_ROUTE_FULL(*dst_id, *src_id) = generic_new_extended_route(rc->hierarchy,route,0);
266                       xbt_dynar_shrink(TO_ROUTE_FULL(*dst_id, *src_id)->generic_route.link_list, 0);
267                 }
268         }
269
270         if (rc->hierarchy == SURF_ROUTING_BASE) generic_free_route((route_t)route) ;
271         else generic_free_extended_route((route_extended_t)route);
272 }