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[simgrid.git] / src / surf / surf_routing.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 <pcre.h>               /* regular expression library */
8
9 #include "simgrid/platf_interface.h"    // platform creation API internal interface
10
11 #include "surf_routing_private.h"
12 #include "surf/surf_routing.h"
13 #include "surf/surfxml_parse_values.h"
14
15 /**
16  * @ingroup SURF_build_api
17  * @brief A library containing all known workstations
18  */
19 xbt_lib_t host_lib;
20
21 int ROUTING_HOST_LEVEL;         //Routing level
22 int SURF_CPU_LEVEL;             //Surf cpu level
23 int SURF_WKS_LEVEL;             //Surf workstation level
24 int SIMIX_HOST_LEVEL;           //Simix level
25 int MSG_HOST_LEVEL;             //Msg level
26 int SD_HOST_LEVEL;              //Simdag level
27 int COORD_HOST_LEVEL=0;         //Coordinates level
28 int NS3_HOST_LEVEL;             //host node for ns3
29
30 xbt_dict_t watched_hosts_lib;
31
32 /**
33  * @ingroup SURF_build_api
34  * @brief A library containing all known links
35  */
36 xbt_lib_t link_lib;
37 int SD_LINK_LEVEL;              //Simdag level
38 int SURF_LINK_LEVEL;            //Surf level
39 int NS3_LINK_LEVEL;             //link for ns3
40
41 xbt_lib_t as_router_lib;
42 int ROUTING_ASR_LEVEL;          //Routing level
43 int COORD_ASR_LEVEL;            //Coordinates level
44 int NS3_ASR_LEVEL;              //host node for ns3
45
46 static xbt_dict_t random_value = NULL;
47
48 /** @brief Retrieve a routing edge from its name
49  *
50  * Routing edges are either CPU/workstation and routers, whatever
51  */
52 sg_routing_edge_t sg_routing_edge_by_name_or_null(const char *name) {
53     sg_routing_edge_t net_elm = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
54     if(!net_elm) net_elm = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
55   return net_elm;
56 }
57
58 /* Global vars */
59 routing_platf_t routing_platf = NULL;
60 AS_t current_routing = NULL;
61
62 /* global parse functions */
63 extern xbt_dynar_t mount_list;
64
65 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
66
67 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
68 static void routing_parse_Srandom(void);        /* random bypass */
69
70 static void routing_parse_postparse(void);
71
72 /* this lines are only for replace use like index in the model table */
73 typedef enum {
74   SURF_MODEL_FULL = 0,
75   SURF_MODEL_FLOYD,
76   SURF_MODEL_DIJKSTRA,
77   SURF_MODEL_DIJKSTRACACHE,
78   SURF_MODEL_NONE,
79   SURF_MODEL_RULEBASED,
80   SURF_MODEL_VIVALDI,
81   SURF_MODEL_CLUSTER
82 } e_routing_types;
83
84 struct s_model_type routing_models[] = {
85   {"Full",
86    "Full routing data (fast, large memory requirements, fully expressive)",
87    model_full_create, model_full_end},
88   {"Floyd",
89    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
90    model_floyd_create, model_floyd_end},
91   {"Dijkstra",
92    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
93    model_dijkstra_create, model_dijkstra_both_end},
94   {"DijkstraCache",
95    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
96    model_dijkstracache_create, model_dijkstra_both_end},
97   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
98    model_none_create,  NULL},
99   {"RuleBased", "Rule-Based routing data (...)",
100    model_rulebased_create, NULL},
101   {"Vivaldi", "Vivaldi routing",
102    model_vivaldi_create, NULL},
103   {"Cluster", "Cluster routing",
104    model_cluster_create, NULL},
105   {NULL, NULL, NULL, NULL}
106 };
107
108 /**
109  * \brief Add a "host_link" to the network element list
110  */
111 static void parse_S_host_link(sg_platf_host_link_cbarg_t host)
112 {
113   sg_routing_edge_t info = NULL;
114   info = xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL);
115   xbt_assert(info, "Host '%s' not found!",host->id);
116   xbt_assert(current_routing->model_desc == &routing_models[SURF_MODEL_CLUSTER] ||
117       current_routing->model_desc == &routing_models[SURF_MODEL_VIVALDI],
118       "You have to be in model Cluster to use tag host_link!");
119
120   s_surf_parsing_link_up_down_t link_up_down;
121   link_up_down.link_up = xbt_lib_get_or_null(link_lib, host->link_up, SURF_LINK_LEVEL);
122   link_up_down.link_down = xbt_lib_get_or_null(link_lib, host->link_down, SURF_LINK_LEVEL);
123
124   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
125   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
126
127   if(!current_routing->link_up_down_list)
128     current_routing->link_up_down_list = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
129
130   // If dynar is is greater than edge id and if the host_link is already defined
131   if(xbt_dynar_length(current_routing->link_up_down_list) > info->id &&
132       xbt_dynar_get_as(current_routing->link_up_down_list,info->id,void*))
133     xbt_die("Host_link for '%s' is already defined!",host->id);
134
135   XBT_DEBUG("Push Host_link for host '%s' to position %d",info->name,info->id);
136   xbt_dynar_set_as(current_routing->link_up_down_list,info->id,s_surf_parsing_link_up_down_t,link_up_down);
137 }
138
139 /**
140  * \brief Add a "host" to the network element list
141  */
142 static void parse_S_host(sg_platf_host_cbarg_t host)
143 {
144   sg_routing_edge_t info = NULL;
145   if (current_routing->hierarchy == SURF_ROUTING_NULL)
146     current_routing->hierarchy = SURF_ROUTING_BASE;
147   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
148              "Reading a host, processing unit \"%s\" already exists", host->id);
149
150   info = xbt_new0(s_network_element_t, 1);
151   info->rc_component = current_routing;
152   info->rc_type = SURF_NETWORK_ELEMENT_HOST;
153   info->name = xbt_strdup(host->id);
154   info->id = current_routing->parse_PU(current_routing, (void *) info);
155   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
156   XBT_DEBUG("Having set name '%s' id '%d'",host->id,info->id);
157
158   if(mount_list){
159     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
160     mount_list = NULL;
161   }
162
163   if (host->coord && strcmp(host->coord, "")) {
164     unsigned int cursor;
165     char*str;
166
167     if (!COORD_HOST_LEVEL)
168       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
169     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
170     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
171     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
172     xbt_dynar_foreach(ctn_str,cursor, str) {
173       double val = atof(str);
174       xbt_dynar_push(ctn,&val);
175     }
176     xbt_dynar_shrink(ctn, 0);
177     xbt_dynar_free(&ctn_str);
178     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
179     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
180   }
181 }
182
183 /**
184  * \brief Add a "router" to the network element list
185  */
186 static void parse_S_router(sg_platf_router_cbarg_t router)
187 {
188   sg_routing_edge_t info = NULL;
189   if (current_routing->hierarchy == SURF_ROUTING_NULL)
190     current_routing->hierarchy = SURF_ROUTING_BASE;
191   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
192              "Reading a router, processing unit \"%s\" already exists",
193              router->id);
194
195   info = xbt_new0(s_network_element_t, 1);
196   info->rc_component = current_routing;
197   info->rc_type = SURF_NETWORK_ELEMENT_ROUTER;
198   info->name = xbt_strdup(router->id);
199   info->id = current_routing->parse_PU(current_routing, (void *) info);
200   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
201   XBT_DEBUG("Having set name '%s' id '%d'",router->id,info->id);
202
203   if (router->coord && strcmp(router->coord, "")) {
204     unsigned int cursor;
205     char*str;
206
207     if (!COORD_ASR_LEVEL)
208       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
209     /* Pre-parse the host coordinates */
210     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
211     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
212     xbt_dynar_foreach(ctn_str,cursor, str) {
213       double val = atof(str);
214       xbt_dynar_push(ctn,&val);
215     }
216     xbt_dynar_shrink(ctn, 0);
217     xbt_dynar_free(&ctn_str);
218     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
219     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
220   }
221 }
222
223 /**
224  * \brief Store the route by calling the set_route function of the current routing component
225  */
226 static void parse_E_route(sg_platf_route_cbarg_t route)
227 {
228   route_t created_route = xbt_new0(s_route_t, 1);
229   created_route->link_list = route->link_list;
230
231   xbt_assert(current_routing->parse_route,
232              "no defined method \"set_route\" in \"%s\"",
233              current_routing->name);
234
235   current_routing->parse_route(current_routing,
236       route->src, route->dst, created_route);
237   generic_free_route(created_route);
238 }
239
240 /**
241  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
242  */
243 static void parse_E_ASroute(sg_platf_ASroute_cbarg_t ASroute)
244 {
245   route_t e_route = xbt_new0(s_route_t, 1);
246   e_route->link_list = ASroute->link_list;
247
248   if (!strcmp(current_routing->model_desc->name,"RuleBased")) {
249     // DIRTY PERL HACK AHEAD: with the rulebased routing, the {src,dst}_gateway fields
250     // store the provided name instead of the entity directly (model_rulebased_parse_ASroute knows)
251     //
252     // This is because the user will provide something like "^AS_(.*)$" instead of the proper name of a given entity
253     e_route->src_gateway = (sg_routing_edge_t) ASroute->gw_src;
254     e_route->dst_gateway = (sg_routing_edge_t) ASroute->gw_dst;
255   } else {
256     e_route->src_gateway = sg_routing_edge_by_name_or_null(ASroute->gw_src);
257     e_route->dst_gateway = sg_routing_edge_by_name_or_null(ASroute->gw_dst);
258   }
259   xbt_assert(current_routing->parse_ASroute,
260              "no defined method \"set_ASroute\" in \"%s\"",
261              current_routing->name);
262   current_routing->parse_ASroute(current_routing, ASroute->src, ASroute->dst, e_route);
263   generic_free_route(e_route);
264 }
265
266 /**
267  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
268  */
269 static void parse_E_bypassRoute(sg_platf_bypassRoute_cbarg_t route)
270 {
271   route_t e_route = xbt_new0(s_route_t, 1);
272   e_route->link_list = route->link_list;
273
274   xbt_assert(current_routing->parse_bypassroute,
275              "Bypassing mechanism not implemented by routing '%s'",
276              current_routing->name);
277
278   current_routing->parse_bypassroute(current_routing, route->src, route->dst, e_route);
279 }
280
281 /**
282  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
283  */
284 static void parse_E_bypassASroute(sg_platf_bypassASroute_cbarg_t ASroute)
285 {
286   route_t e_route = xbt_new0(s_route_t, 1);
287   e_route->link_list = ASroute->link_list;
288   e_route->src_gateway = sg_routing_edge_by_name_or_null(ASroute->gw_src);
289   e_route->dst_gateway = sg_routing_edge_by_name_or_null(ASroute->gw_dst);
290   xbt_assert(current_routing->parse_bypassroute,
291              "Bypassing mechanism not implemented by routing '%s'",
292              current_routing->name);
293   current_routing->parse_bypassroute(current_routing, ASroute->src, ASroute->dst, e_route);
294 }
295
296 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
297 {
298   tmgr_trace_t tmgr_trace;
299   if (!trace->file || strcmp(trace->file, "") != 0) {
300     tmgr_trace = tmgr_trace_new_from_file(trace->file);
301   } else if (strcmp(trace->pc_data, "") == 0) {
302     tmgr_trace = NULL;
303   } else {
304     tmgr_trace =
305           tmgr_trace_new_from_string(trace->id, trace->pc_data,
306                                      trace->periodicity);
307   }
308   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
309 }
310
311 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
312 {
313   xbt_assert(xbt_dict_get_or_null
314               (traces_set_list, trace_connect->trace),
315               "Cannot connect trace %s to %s: trace unknown",
316               trace_connect->trace,
317               trace_connect->element);
318
319   switch (trace_connect->kind) {
320   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
321     xbt_dict_set(trace_connect_list_host_avail,
322         trace_connect->trace,
323         xbt_strdup(trace_connect->element), NULL);
324     break;
325   case SURF_TRACE_CONNECT_KIND_POWER:
326     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
327         xbt_strdup(trace_connect->element), NULL);
328     break;
329   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
330     xbt_dict_set(trace_connect_list_link_avail,
331         trace_connect->trace,
332         xbt_strdup(trace_connect->element), NULL);
333     break;
334   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
335     xbt_dict_set(trace_connect_list_bandwidth,
336         trace_connect->trace,
337         xbt_strdup(trace_connect->element), NULL);
338     break;
339   case SURF_TRACE_CONNECT_KIND_LATENCY:
340     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
341         xbt_strdup(trace_connect->element), NULL);
342     break;
343   default:
344     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
345         trace_connect->trace, trace_connect->element);
346     break;
347   }
348 }
349
350 /**
351  * \brief Make a new routing component to the platform
352  *
353  * Add a new autonomous system to the platform. Any elements (such as host,
354  * router or sub-AS) added after this call and before the corresponding call
355  * to sg_platf_new_AS_close() will be added to this AS.
356  *
357  * Once this function was called, the configuration concerning the used
358  * models cannot be changed anymore.
359  *
360  * @param AS_id name of this autonomous system. Must be unique in the platform
361  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
362  */
363 void routing_AS_begin(const char *AS_id, int wanted_routing_type)
364 {
365   XBT_DEBUG("routing_AS_begin");
366   AS_t new_as;
367   routing_model_description_t model = NULL;
368
369   xbt_assert(!xbt_lib_get_or_null
370              (as_router_lib, AS_id, ROUTING_ASR_LEVEL),
371              "The AS \"%s\" already exists", AS_id);
372
373   /* search the routing model */
374   switch(wanted_routing_type){
375     case A_surfxml_AS_routing_Cluster:       model = &routing_models[SURF_MODEL_CLUSTER];break;
376     case A_surfxml_AS_routing_Dijkstra:      model = &routing_models[SURF_MODEL_DIJKSTRA];break;
377     case A_surfxml_AS_routing_DijkstraCache: model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
378     case A_surfxml_AS_routing_Floyd:         model = &routing_models[SURF_MODEL_FLOYD];break;
379     case A_surfxml_AS_routing_Full:          model = &routing_models[SURF_MODEL_FULL];break;
380     case A_surfxml_AS_routing_None:          model = &routing_models[SURF_MODEL_NONE];break;
381     case A_surfxml_AS_routing_RuleBased:     model = &routing_models[SURF_MODEL_RULEBASED];break;
382     case A_surfxml_AS_routing_Vivaldi:       model = &routing_models[SURF_MODEL_VIVALDI];break;
383     default: xbt_die("Not a valid model!!!");
384     break;
385   }
386
387   /* make a new routing component */
388   new_as = (AS_t) model->create();
389   new_as->model_desc = model;
390   new_as->hierarchy = SURF_ROUTING_NULL;
391   new_as->name = xbt_strdup(AS_id);
392
393   sg_routing_edge_t info = NULL;
394   info = xbt_new0(s_network_element_t, 1);
395
396   if (current_routing == NULL && routing_platf->root == NULL) {
397
398     /* it is the first one */
399     new_as->routing_father = NULL;
400     routing_platf->root = new_as;
401     info->id = -1;
402   } else if (current_routing != NULL && routing_platf->root != NULL) {
403
404     xbt_assert(!xbt_dict_get_or_null
405                (current_routing->routing_sons, AS_id),
406                "The AS \"%s\" already exists", AS_id);
407     /* it is a part of the tree */
408     new_as->routing_father = current_routing;
409     /* set the father behavior */
410     if (current_routing->hierarchy == SURF_ROUTING_NULL)
411       current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
412     /* add to the sons dictionary */
413     xbt_dict_set(current_routing->routing_sons, AS_id,
414                  (void *) new_as, NULL);
415     /* add to the father element list */
416     info->id = current_routing->parse_AS(current_routing, (void *) info);
417   } else {
418     THROWF(arg_error, 0, "All defined components must be belong to a AS");
419   }
420
421   info->rc_component = new_as->routing_father;
422   info->rc_type = SURF_NETWORK_ELEMENT_AS;
423   info->name = new_as->name;
424
425   xbt_lib_set(as_router_lib, new_as->name, ROUTING_ASR_LEVEL,
426               (void *) info);
427   XBT_DEBUG("Having set name '%s' id '%d'",new_as->name,info->id);
428
429   /* set the new current component of the tree */
430   current_routing = new_as;
431   current_routing->net_elem = info;
432
433 }
434
435 /**
436  * \brief Specify that the current description of AS is finished
437  *
438  * Once you've declared all the content of your AS, you have to close
439  * it with this call. Your AS is not usable until you call this function.
440  *
441  * @fixme: this call is not as robust as wanted: bad things WILL happen
442  * if you call it twice for the same AS, or if you forget calling it, or
443  * even if you add stuff to a closed AS
444  *
445  */
446 void routing_AS_end()
447 {
448
449   if (current_routing == NULL) {
450     THROWF(arg_error, 0, "Close an AS, but none was under construction");
451   } else {
452     if (current_routing->model_desc->end)
453       current_routing->model_desc->end(current_routing);
454     current_routing = current_routing->routing_father;
455   }
456 }
457
458 /* Aux Business methods */
459
460 /**
461  * \brief Get the AS father and the first elements of the chain
462  *
463  * \param src the source host name 
464  * \param dst the destination host name
465  * 
466  * Get the common father of the to processing units, and the first different 
467  * father in the chain
468  */
469 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
470                             AS_t * res_father,
471                             AS_t * res_src,
472                             AS_t * res_dst)
473 {
474   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
475 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
476   AS_t src_as, dst_as;
477   AS_t path_src[ELEMENTS_FATHER_MAXDEPTH];
478   AS_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
479   int index_src = 0;
480   int index_dst = 0;
481   AS_t current;
482   AS_t current_src;
483   AS_t current_dst;
484   AS_t father;
485
486   /* (1) find the as where the src and dst are located */
487   sg_routing_edge_t src_data = src;
488   sg_routing_edge_t dst_data = dst;
489   src_as = src_data->rc_component;
490   dst_as = dst_data->rc_component;
491 #ifndef NDEBUG
492   char* src_name = src_data->name;
493   char* dst_name = dst_data->name;
494 #endif
495
496   xbt_assert(src_as && dst_as,
497              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
498
499   /* (2) find the path to the root routing component */
500   for (current = src_as; current != NULL; current = current->routing_father) {
501     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
502       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
503     path_src[index_src++] = current;
504   }
505   for (current = dst_as; current != NULL; current = current->routing_father) {
506     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
507       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
508     path_dst[index_dst++] = current;
509   }
510
511   /* (3) find the common father */
512   do {
513     current_src = path_src[--index_src];
514     current_dst = path_dst[--index_dst];
515   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
516
517   /* (4) they are not in the same routing component, make the path */
518   if (current_src == current_dst)
519     father = current_src;
520   else
521     father = path_src[index_src + 1];
522
523   /* (5) result generation */
524   *res_father = father;         /* first the common father of src and dst */
525   *res_src = current_src;       /* second the first different father of src */
526   *res_dst = current_dst;       /* three  the first different father of dst */
527
528 #undef ELEMENTS_FATHER_MAXDEPTH
529 }
530
531 /* Global Business methods */
532
533 /**
534  * \brief Recursive function for get_route_latency
535  *
536  * \param src the source host name 
537  * \param dst the destination host name
538  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
539  * \param *latency the latency, if needed
540  * 
541  * This function is called by "get_route" and "get_latency". It allows to walk
542  * recursively through the ASes tree.
543  */
544 static void _get_route_and_latency(sg_routing_edge_t src, sg_routing_edge_t dst,
545                                    xbt_dynar_t * links, double *latency)
546 {
547   s_route_t route;
548   memset(&route,0,sizeof(route));
549
550   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->name, dst->name);
551   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
552
553   /* Find how src and dst are interconnected */
554   AS_t common_father, src_father, dst_father;
555   elements_father(src, dst, &common_father, &src_father, &dst_father);
556   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
557       common_father->name,src_father->name,dst_father->name);
558
559   /* Check whether a direct bypass is defined */
560   route_t e_route_bypass = NULL;
561   if (common_father->get_bypass_route)
562     e_route_bypass = common_father->get_bypass_route(common_father, src, dst, latency);
563
564   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
565   if (e_route_bypass) {
566     xbt_dynar_merge(links, &e_route_bypass->link_list);
567     generic_free_route(e_route_bypass);
568     return;
569   }
570
571   /* If src and dst are in the same AS, life is good */
572   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
573     route.link_list = *links;
574     common_father->get_route_and_latency(common_father, src, dst, &route,latency);
575     // if vivaldi latency+=vivaldi(src,dst)
576     return;
577   }
578
579   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
580
581   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
582   // Find the net_card corresponding to father
583   sg_routing_edge_t src_father_net_elm = src_father->net_elem;
584   sg_routing_edge_t dst_father_net_elm = dst_father->net_elem;
585
586   common_father->get_route_and_latency(common_father,
587                                        src_father_net_elm, dst_father_net_elm,
588                                        &route, latency);
589
590   xbt_assert((route.src_gateway != NULL) && (route.dst_gateway != NULL),
591       "bad gateways for route from \"%s\" to \"%s\"", src->name, dst->name);
592
593   sg_routing_edge_t src_gateway_net_elm = route.src_gateway;
594   sg_routing_edge_t dst_gateway_net_elm = route.dst_gateway;
595
596   /* If source gateway is not our source, we have to recursively find our way up to this point */
597   if (src != src_gateway_net_elm)
598     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
599   xbt_dynar_merge(links, &route.link_list);
600
601   /* If dest gateway is not our destination, we have to recursively find our way from this point */
602   if (dst_gateway_net_elm != dst)
603     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
604
605   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
606 }
607
608 /**
609  * \brief Find a route between hosts
610  *
611  * \param src the network_element_t for src host
612  * \param dst the network_element_t for dst host
613  * \param route where to store the list of links.
614  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
615  * \param latency where to store the latency experienced on the path (or NULL if not interested)
616  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
617  * \pre route!=NULL
618  *
619  * walk through the routing components tree and find a route between hosts
620  * by calling the differents "get_route" functions in each routing component.
621  */
622 void routing_get_route_and_latency(sg_routing_edge_t src,
623                                    sg_routing_edge_t dst,
624                                    xbt_dynar_t * route, double *latency)
625 {
626   XBT_DEBUG("routing_get_route_and_latency from %s to %s",src->name,dst->name);
627   if (!*route) {
628     xbt_dynar_reset(routing_platf->last_route);
629     *route = routing_platf->last_route;
630   }
631
632   _get_route_and_latency(src, dst, route, latency);
633
634   xbt_assert(!latency || *latency >= 0.0,
635              "negative latency on route between \"%s\" and \"%s\"", src->name, dst->name);
636 }
637
638 static xbt_dynar_t recursive_get_onelink_routes(AS_t rc)
639 {
640   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
641
642   //adding my one link routes
643   xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
644   if (onelink_mine)
645     xbt_dynar_merge(&ret,&onelink_mine);
646
647   //recursing
648   char *key;
649   xbt_dict_cursor_t cursor = NULL;
650   AS_t rc_child;
651   xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
652     xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
653     if (onelink_child)
654       xbt_dynar_merge(&ret,&onelink_child);
655   }
656   return ret;
657 }
658
659 static xbt_dynar_t get_onelink_routes(void)
660 {
661   return recursive_get_onelink_routes(routing_platf->root);
662 }
663
664 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
665 {
666   sg_routing_edge_t rc = sg_routing_edge_by_name_or_null(name);
667   if (rc)
668     return rc->rc_type;
669
670   return SURF_NETWORK_ELEMENT_NULL;
671 }
672
673 /**
674  * \brief Generic method: create the global routing schema
675  * 
676  * Make a global routing structure and set all the parsing functions.
677  */
678 void routing_model_create( void *loopback)
679 {
680   /* config the uniq global routing */
681   routing_platf = xbt_new0(s_routing_platf_t, 1);
682   routing_platf->root = NULL;
683   routing_platf->get_onelink_routes = get_onelink_routes;
684   routing_platf->loopback = loopback;
685   routing_platf->last_route = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
686   /* no current routing at moment */
687   current_routing = NULL;
688 }
689
690
691 /* ************************************************** */
692 /* ********** PATERN FOR NEW ROUTING **************** */
693
694 /* The minimal configuration of a new routing model need the next functions,
695  * also you need to set at the start of the file, the new model in the model
696  * list. Remember keep the null ending of the list.
697  */
698 /*** Routing model structure ***/
699 // typedef struct {
700 //   s_routing_component_t generic_routing;
701 //   /* things that your routing model need */
702 // } s_routing_component_NEW_t,*routing_component_NEW_t;
703
704 /*** Parse routing model functions ***/
705 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
706 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
707 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
708 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
709 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
710
711 /*** Business methods ***/
712 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
713 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
714 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
715
716 /*** Creation routing model functions ***/
717 // static void* model_NEW_create(void) {
718 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
719 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
720 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
721 //   new_component->generic_routing.set_route = model_NEW_set_route;
722 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
723 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
724 //   new_component->generic_routing.get_route = NEW_get_route;
725 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
726 //   new_component->generic_routing.finalize = NEW_finalize;
727 //   /* initialization of internal structures */
728 //   return new_component;
729 // } /* mandatory */
730 // static void  model_NEW_load(void) {}   /* mandatory */
731 // static void  model_NEW_unload(void) {} /* mandatory */
732 // static void  model_NEW_end(void) {}    /* mandatory */
733
734 /* ************************************************************************** */
735 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
736
737 void routing_cluster_add_backbone(void* bb) {
738   xbt_assert(current_routing->model_desc == &routing_models[SURF_MODEL_CLUSTER],
739         "You have to be in model Cluster to use tag backbone!");
740   xbt_assert(!((as_cluster_t)current_routing)->backbone,"The backbone link is already defined!");
741   ((as_cluster_t)current_routing)->backbone = bb;
742   XBT_DEBUG("Add a backbone to AS '%s'",current_routing->name);
743 }
744
745 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
746 {
747   int start, end, i;
748   char *groups , *host_id , *link_id = NULL;
749   unsigned int iter;
750   xbt_dynar_t radical_elements;
751   xbt_dynar_t radical_ends;
752
753   //Make all hosts
754   radical_elements = xbt_str_split(cabinet->radical, ",");
755   xbt_dynar_foreach(radical_elements, iter, groups) {
756
757     radical_ends = xbt_str_split(groups, "-");
758     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
759
760     switch (xbt_dynar_length(radical_ends)) {
761     case 1:
762       end = start;
763       break;
764     case 2:
765       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
766       break;
767     default:
768       surf_parse_error("Malformed radical");
769       break;
770     }
771     s_sg_platf_host_cbarg_t host;
772     memset(&host, 0, sizeof(host));
773     host.initial_state = SURF_RESOURCE_ON;
774     host.power_peak = cabinet->power;
775     host.power_scale = 1.0;
776     host.core_amount = 1;
777
778     s_sg_platf_link_cbarg_t link;
779     memset(&link, 0, sizeof(link));
780     link.state = SURF_RESOURCE_ON;
781     link.policy = SURF_LINK_FULLDUPLEX;
782     link.latency = cabinet->lat;
783     link.bandwidth = cabinet->bw;
784
785     s_sg_platf_host_link_cbarg_t host_link;
786     memset(&host_link, 0, sizeof(host_link));
787
788     for (i = start; i <= end; i++) {
789       host_id = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
790       link_id = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
791       host.id = host_id;
792       link.id = link_id;
793       sg_platf_new_host(&host);
794       sg_platf_new_link(&link);
795
796       char* link_up = bprintf("%s_UP",link_id);
797       char* link_down = bprintf("%s_DOWN",link_id);
798       host_link.id = host_id;
799       host_link.link_up = link_up;
800       host_link.link_down= link_down;
801       sg_platf_new_host_link(&host_link);
802
803       free(host_id);
804       free(link_id);
805       free(link_up);
806       free(link_down);
807     }
808
809     xbt_dynar_free(&radical_ends);
810   }
811   xbt_dynar_free(&radical_elements);
812 }
813
814 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
815 {
816   char *host_id, *groups, *link_id = NULL;
817   xbt_dict_t patterns = NULL;
818
819   s_sg_platf_host_cbarg_t host;
820   s_sg_platf_link_cbarg_t link;
821
822   unsigned int iter;
823   int start, end, i;
824   xbt_dynar_t radical_elements;
825   xbt_dynar_t radical_ends;
826
827   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
828       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
829     patterns = xbt_dict_new_homogeneous(xbt_free_f);
830     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
831     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
832     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
833   }
834
835   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
836   sg_platf_new_AS_begin(cluster->id, A_surfxml_AS_routing_Cluster);
837
838   current_routing->link_up_down_list
839             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
840
841   //Make all hosts
842   radical_elements = xbt_str_split(cluster->radical, ",");
843   xbt_dynar_foreach(radical_elements, iter, groups) {
844
845     radical_ends = xbt_str_split(groups, "-");
846     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
847
848     switch (xbt_dynar_length(radical_ends)) {
849     case 1:
850       end = start;
851       break;
852     case 2:
853       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
854       break;
855     default:
856       surf_parse_error("Malformed radical");
857       break;
858     }
859     for (i = start; i <= end; i++) {
860       host_id =
861           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
862       link_id = bprintf("%s_link_%d", cluster->id, i);
863
864       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
865
866       memset(&host, 0, sizeof(host));
867       host.id = host_id;
868       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
869         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
870         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
871         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
872         host.power_trace = tmgr_trace_new_from_file(avail_file);
873         xbt_free(avail_file);
874       } else {
875         XBT_DEBUG("\tavailability_file=\"\"");
876       }
877
878       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
879         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
880         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
881         host.state_trace = tmgr_trace_new_from_file(avail_file);
882         xbt_free(avail_file);
883       } else {
884         XBT_DEBUG("\tstate_file=\"\"");
885       }
886
887       host.power_peak = cluster->power;
888       host.power_scale = 1.0;
889       host.core_amount = cluster->core_amount;
890       host.initial_state = SURF_RESOURCE_ON;
891       host.coord = "";
892       sg_platf_new_host(&host);
893       XBT_DEBUG("</host>");
894
895       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
896                 cluster->bw, cluster->lat);
897
898       memset(&link, 0, sizeof(link));
899       link.id = link_id;
900       link.bandwidth = cluster->bw;
901       link.latency = cluster->lat;
902       link.state = SURF_RESOURCE_ON;
903       link.policy = cluster->sharing_policy;
904       sg_platf_new_link(&link);
905
906       s_surf_parsing_link_up_down_t info;
907
908       if (link.policy == SURF_LINK_FULLDUPLEX) {
909         char *tmp_link = bprintf("%s_UP", link_id);
910         info.link_up =
911             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
912         free(tmp_link);
913         tmp_link = bprintf("%s_DOWN", link_id);
914         info.link_down =
915             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
916         free(tmp_link);
917       } else {
918         info.link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
919         info.link_down = info.link_up;
920       }
921       xbt_dynar_push(current_routing->link_up_down_list,&info);
922       xbt_free(link_id);
923       xbt_free(host_id);
924     }
925
926     xbt_dynar_free(&radical_ends);
927   }
928   xbt_dynar_free(&radical_elements);
929
930   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
931   // and it's very useful to connect clusters together
932   XBT_DEBUG(" ");
933   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
934   char *newid = NULL;
935   s_sg_platf_router_cbarg_t router;
936   memset(&router, 0, sizeof(router));
937   router.id = cluster->router_id;
938   router.coord = "";
939   if (!router.id || !strcmp(router.id, ""))
940     router.id = newid =
941         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
942                 cluster->suffix);
943   sg_platf_new_router(&router);
944   free(newid);
945
946   //Make the backbone
947   if ((cluster->bb_bw != 0) && (cluster->bb_lat != 0)) {
948     char *link_backbone = bprintf("%s_backbone", cluster->id);
949     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
950               cluster->bb_bw, cluster->bb_lat);
951
952     memset(&link, 0, sizeof(link));
953     link.id = link_backbone;
954     link.bandwidth = cluster->bb_bw;
955     link.latency = cluster->bb_lat;
956     link.state = SURF_RESOURCE_ON;
957     link.policy = cluster->bb_sharing_policy;
958
959     sg_platf_new_link(&link);
960
961     routing_cluster_add_backbone(xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
962
963     free(link_backbone);
964   }
965
966   XBT_DEBUG("</AS>");
967   sg_platf_new_AS_end();
968   XBT_DEBUG(" ");
969   xbt_dict_free(&patterns); // no op if it were never set
970 }
971
972 static void routing_parse_postparse(void) {
973   xbt_dict_free(&random_value);
974 }
975
976 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
977 {
978   char *host_id = NULL;
979   char *link_id;
980
981   XBT_DEBUG(" ");
982   host_id = HOST_PEER(peer->id);
983   link_id = LINK_PEER(peer->id);
984
985   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
986   s_sg_platf_host_cbarg_t host;
987   memset(&host, 0, sizeof(host));
988   host.initial_state = SURF_RESOURCE_ON;
989   host.id = host_id;
990   host.power_peak = peer->power;
991   host.power_scale = 1.0;
992   host.power_trace = peer->availability_trace;
993   host.state_trace = peer->state_trace;
994   host.core_amount = 1;
995   host.coord = peer->coord;
996   sg_platf_new_host(&host);
997
998   s_sg_platf_link_cbarg_t link;
999   memset(&link, 0, sizeof(link));
1000   link.state = SURF_RESOURCE_ON;
1001   link.policy = SURF_LINK_SHARED;
1002   link.latency = peer->lat;
1003
1004   char* link_up = bprintf("%s_UP",link_id);
1005   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1006             peer->bw_out, peer->lat);
1007   link.id = link_up;
1008   link.bandwidth = peer->bw_out;
1009   sg_platf_new_link(&link);
1010
1011   char* link_down = bprintf("%s_DOWN",link_id);
1012   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1013             peer->bw_in, peer->lat);
1014   link.id = link_down;
1015   link.bandwidth = peer->bw_in;
1016   sg_platf_new_link(&link);
1017
1018   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1019   s_sg_platf_host_link_cbarg_t host_link;
1020   memset(&host_link, 0, sizeof(host_link));
1021   host_link.id = host_id;
1022   host_link.link_up = link_up;
1023   host_link.link_down= link_down;
1024   sg_platf_new_host_link(&host_link);
1025
1026   XBT_DEBUG(" ");
1027
1028   //xbt_dynar_free(&tab_elements_num);
1029   free(host_id);
1030   free(link_id);
1031   free(link_up);
1032   free(link_down);
1033 }
1034
1035 static void routing_parse_Srandom(void)
1036 {
1037   double mean, std, min, max, seed;
1038   char *random_id = A_surfxml_random_id;
1039   char *random_radical = A_surfxml_random_radical;
1040   char *rd_name = NULL;
1041   char *rd_value;
1042   mean = surf_parse_get_double(A_surfxml_random_mean);
1043   std = surf_parse_get_double(A_surfxml_random_std_deviation);
1044   min = surf_parse_get_double(A_surfxml_random_min);
1045   max = surf_parse_get_double(A_surfxml_random_max);
1046   seed = surf_parse_get_double(A_surfxml_random_seed);
1047
1048   double res = 0;
1049   int i = 0;
1050   random_data_t random = xbt_new0(s_random_data_t, 1);
1051   char *tmpbuf;
1052
1053   xbt_dynar_t radical_elements;
1054   unsigned int iter;
1055   char *groups;
1056   int start, end;
1057   xbt_dynar_t radical_ends;
1058
1059   switch (A_surfxml_random_generator) {
1060   case AU_surfxml_random_generator:
1061   case A_surfxml_random_generator_NONE:
1062     random->generator = NONE;
1063     break;
1064   case A_surfxml_random_generator_DRAND48:
1065     random->generator = DRAND48;
1066     break;
1067   case A_surfxml_random_generator_RAND:
1068     random->generator = RAND;
1069     break;
1070   case A_surfxml_random_generator_RNGSTREAM:
1071     random->generator = RNGSTREAM;
1072     break;
1073   default:
1074     surf_parse_error("Invalid random generator");
1075     break;
1076   }
1077   random->seed = seed;
1078   random->min = min;
1079   random->max = max;
1080
1081   /* Check user stupidities */
1082   if (max < min)
1083     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1084   if (mean < min)
1085     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1086   if (mean > max)
1087     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1088
1089   /* normalize the mean and standard deviation before storing */
1090   random->mean = (mean - min) / (max - min);
1091   random->std = std / (max - min);
1092
1093   if (random->mean * (1 - random->mean) < random->std * random->std)
1094     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1095            random->mean, random->std);
1096
1097   XBT_DEBUG
1098       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1099        random_id, random->min, random->max, random->mean, random->std,
1100        (int)random->generator, random->seed, random_radical);
1101
1102   if (!random_value)
1103     random_value = xbt_dict_new_homogeneous(free);
1104
1105   if (!strcmp(random_radical, "")) {
1106     res = random_generate(random);
1107     rd_value = bprintf("%f", res);
1108     xbt_dict_set(random_value, random_id, rd_value, NULL);
1109   } else {
1110     radical_elements = xbt_str_split(random_radical, ",");
1111     xbt_dynar_foreach(radical_elements, iter, groups) {
1112       radical_ends = xbt_str_split(groups, "-");
1113       switch (xbt_dynar_length(radical_ends)) {
1114       case 1:
1115         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1116                    "Custom Random '%s' already exists !", random_id);
1117         res = random_generate(random);
1118         tmpbuf =
1119             bprintf("%s%d", random_id,
1120                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1121         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1122         xbt_free(tmpbuf);
1123         break;
1124
1125       case 2:
1126         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1127         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1128         for (i = start; i <= end; i++) {
1129           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1130                      "Custom Random '%s' already exists !", bprintf("%s%d",
1131                                                                     random_id,
1132                                                                     i));
1133           res = random_generate(random);
1134           tmpbuf = bprintf("%s%d", random_id, i);
1135           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1136           xbt_free(tmpbuf);
1137         }
1138         break;
1139       default:
1140         XBT_CRITICAL("Malformed radical");
1141         break;
1142       }
1143       res = random_generate(random);
1144       rd_name = bprintf("%s_router", random_id);
1145       rd_value = bprintf("%f", res);
1146       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1147
1148       xbt_dynar_free(&radical_ends);
1149     }
1150     free(rd_name);
1151     xbt_dynar_free(&radical_elements);
1152   }
1153 }
1154
1155 void routing_register_callbacks()
1156 {
1157   sg_platf_host_add_cb(parse_S_host);
1158   sg_platf_router_add_cb(parse_S_router);
1159   sg_platf_host_link_add_cb(parse_S_host_link);
1160   sg_platf_route_add_cb(parse_E_route);
1161   sg_platf_ASroute_add_cb(parse_E_ASroute);
1162   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1163   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1164
1165   sg_platf_cluster_add_cb(routing_parse_cluster);
1166   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1167
1168   sg_platf_peer_add_cb(routing_parse_peer);
1169   sg_platf_postparse_add_cb(routing_parse_postparse);
1170
1171   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1172   sg_platf_AS_end_add_cb(routing_AS_end);
1173   sg_platf_AS_begin_add_cb(routing_AS_begin);
1174
1175   sg_platf_trace_add_cb(routing_parse_trace);
1176   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1177
1178 #ifdef HAVE_TRACING
1179   instr_routing_define_callbacks();
1180 #endif
1181 }
1182
1183 /**
1184  * \brief Recursive function for finalize
1185  *
1186  * \param rc the source host name
1187  *
1188  * This fuction is call by "finalize". It allow to finalize the
1189  * AS or routing components. It delete all the structures.
1190  */
1191 static void finalize_rec(AS_t as) {
1192   xbt_dict_cursor_t cursor = NULL;
1193   char *key;
1194   AS_t elem;
1195
1196   xbt_dict_foreach(as->routing_sons, cursor, key, elem) {
1197     finalize_rec(elem);
1198   }
1199
1200   as->finalize(as);
1201 }
1202
1203 /** \brief Frees all memory allocated by the routing module */
1204 void routing_exit(void) {
1205   if (!routing_platf)
1206     return;
1207   xbt_dynar_free(&routing_platf->last_route);
1208   finalize_rec(routing_platf->root);
1209   xbt_free(routing_platf);
1210 }