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add limiter_link option to cluster tag, to add a pseudo-shared link, to limit bandwid...
[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 "simgrid/platf_interface.h"    // platform creation API internal interface
8
9 #include "surf_routing_private.h"
10 #include "surf/surf_routing.h"
11 #include "surf/surfxml_parse_values.h"
12
13 /**
14  * @ingroup SURF_build_api
15  * @brief A library containing all known workstations
16  */
17 xbt_lib_t host_lib;
18
19 int ROUTING_HOST_LEVEL;         //Routing level
20 int SURF_CPU_LEVEL;             //Surf cpu level
21 int SURF_WKS_LEVEL;             //Surf workstation level
22 int SIMIX_HOST_LEVEL;           //Simix level
23 int MSG_HOST_LEVEL;             //Msg level
24 int SD_HOST_LEVEL;              //Simdag level
25 int COORD_HOST_LEVEL=0;         //Coordinates level
26 int NS3_HOST_LEVEL;             //host node for ns3
27
28 xbt_dict_t watched_hosts_lib;
29
30 /**
31  * @ingroup SURF_build_api
32  * @brief A library containing all known links
33  */
34 xbt_lib_t link_lib;
35 int SD_LINK_LEVEL;              //Simdag level
36 int SURF_LINK_LEVEL;            //Surf level
37 int NS3_LINK_LEVEL;             //link for ns3
38
39 xbt_lib_t as_router_lib;
40 int ROUTING_ASR_LEVEL;          //Routing level
41 int COORD_ASR_LEVEL;            //Coordinates level
42 int NS3_ASR_LEVEL;              //host node for ns3
43 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
44
45 static xbt_dict_t random_value = NULL;
46
47 /** @brief Retrieve a routing edge from its name
48  *
49  * Routing edges are either CPU/workstation and routers, whatever
50  */
51 sg_routing_edge_t sg_routing_edge_by_name_or_null(const char *name) {
52     sg_routing_edge_t net_elm = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
53     if(!net_elm) net_elm = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
54   return net_elm;
55 }
56
57 /* Global vars */
58 routing_platf_t routing_platf = NULL;
59 AS_t current_routing = NULL;
60
61 /* global parse functions */
62 extern xbt_dynar_t mount_list;
63
64 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
65
66 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
67 static void routing_parse_Srandom(void);        /* random bypass */
68
69 static void routing_parse_postparse(void);
70
71 /* this lines are only for replace use like index in the model table */
72 typedef enum {
73   SURF_MODEL_FULL = 0,
74   SURF_MODEL_FLOYD,
75   SURF_MODEL_DIJKSTRA,
76   SURF_MODEL_DIJKSTRACACHE,
77   SURF_MODEL_NONE,
78   SURF_MODEL_RULEBASED,
79   SURF_MODEL_VIVALDI,
80   SURF_MODEL_CLUSTER
81 } e_routing_types;
82
83 struct s_model_type routing_models[] = {
84   {"Full",
85    "Full routing data (fast, large memory requirements, fully expressive)",
86    model_full_create, model_full_end},
87   {"Floyd",
88    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
89    model_floyd_create, model_floyd_end},
90   {"Dijkstra",
91    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
92    model_dijkstra_create, model_dijkstra_both_end},
93   {"DijkstraCache",
94    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
95    model_dijkstracache_create, model_dijkstra_both_end},
96   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
97    model_none_create,  NULL},
98   {"RuleBased", "Rule-Based routing data (...)",
99    model_rulebased_create, NULL},
100   {"Vivaldi", "Vivaldi routing",
101    model_vivaldi_create, NULL},
102   {"Cluster", "Cluster routing",
103    model_cluster_create, NULL},
104   {NULL, NULL, NULL, NULL}
105 };
106
107 /**
108  * \brief Add a "host_link" to the network element list
109  */
110 static void parse_S_host_link(sg_platf_host_link_cbarg_t host)
111 {
112   sg_routing_edge_t info = NULL;
113   info = xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL);
114   xbt_assert(info, "Host '%s' not found!",host->id);
115   xbt_assert(current_routing->model_desc == &routing_models[SURF_MODEL_CLUSTER] ||
116       current_routing->model_desc == &routing_models[SURF_MODEL_VIVALDI],
117       "You have to be in model Cluster to use tag host_link!");
118
119   s_surf_parsing_link_up_down_t link_up_down;
120   link_up_down.link_up = xbt_lib_get_or_null(link_lib, host->link_up, SURF_LINK_LEVEL);
121   link_up_down.link_down = xbt_lib_get_or_null(link_lib, host->link_down, SURF_LINK_LEVEL);
122
123   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
124   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
125
126   if(!current_routing->link_up_down_list)
127     current_routing->link_up_down_list = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
128
129   // If dynar is is greater than edge id and if the host_link is already defined
130   if(xbt_dynar_length(current_routing->link_up_down_list) > info->id &&
131       xbt_dynar_get_as(current_routing->link_up_down_list,info->id,void*))
132     xbt_die("Host_link for '%s' is already defined!",host->id);
133
134   XBT_DEBUG("Push Host_link for host '%s' to position %d",info->name,info->id);
135   xbt_dynar_set_as(current_routing->link_up_down_list,info->id,s_surf_parsing_link_up_down_t,link_up_down);
136 }
137
138 /**
139  * \brief Add a "host" to the network element list
140  */
141 static void parse_S_host(sg_platf_host_cbarg_t host)
142 {
143   sg_routing_edge_t info = NULL;
144   if (current_routing->hierarchy == SURF_ROUTING_NULL)
145     current_routing->hierarchy = SURF_ROUTING_BASE;
146   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
147              "Reading a host, processing unit \"%s\" already exists", host->id);
148
149   info = xbt_new0(s_routing_edge_t, 1);
150   info->rc_component = current_routing;
151   info->rc_type = SURF_NETWORK_ELEMENT_HOST;
152   info->name = xbt_strdup(host->id);
153   info->id = current_routing->parse_PU(current_routing, (void *) info);
154   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
155   XBT_DEBUG("Having set name '%s' id '%d'",host->id,info->id);
156
157   if(mount_list){
158     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
159     mount_list = NULL;
160   }
161
162   if (host->coord && strcmp(host->coord, "")) {
163     unsigned int cursor;
164     char*str;
165
166     if (!COORD_HOST_LEVEL)
167       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
168     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
169     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
170     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
171     xbt_dynar_foreach(ctn_str,cursor, str) {
172       double val = atof(str);
173       xbt_dynar_push(ctn,&val);
174     }
175     xbt_dynar_shrink(ctn, 0);
176     xbt_dynar_free(&ctn_str);
177     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
178     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
179   }
180 }
181
182 /**
183  * \brief Add a "router" to the network element list
184  */
185 static void parse_S_router(sg_platf_router_cbarg_t router)
186 {
187   sg_routing_edge_t info = NULL;
188   if (current_routing->hierarchy == SURF_ROUTING_NULL)
189     current_routing->hierarchy = SURF_ROUTING_BASE;
190   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
191              "Reading a router, processing unit \"%s\" already exists",
192              router->id);
193
194   info = xbt_new0(s_routing_edge_t, 1);
195   info->rc_component = current_routing;
196   info->rc_type = SURF_NETWORK_ELEMENT_ROUTER;
197   info->name = xbt_strdup(router->id);
198   info->id = current_routing->parse_PU(current_routing, (void *) info);
199   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
200   XBT_DEBUG("Having set name '%s' id '%d'",router->id,info->id);
201
202   if (router->coord && strcmp(router->coord, "")) {
203     unsigned int cursor;
204     char*str;
205
206     if (!COORD_ASR_LEVEL)
207       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
208     /* Pre-parse the host coordinates */
209     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
210     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
211     xbt_dynar_foreach(ctn_str,cursor, str) {
212       double val = atof(str);
213       xbt_dynar_push(ctn,&val);
214     }
215     xbt_dynar_shrink(ctn, 0);
216     xbt_dynar_free(&ctn_str);
217     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
218     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
219   }
220 }
221
222 /**
223  * \brief Store the route by calling the set_route function of the current routing component
224  */
225 static void parse_E_route(sg_platf_route_cbarg_t route)
226 {
227   xbt_assert(current_routing->parse_route,
228              "no defined method \"set_route\" in \"%s\"",
229              current_routing->name);
230
231   current_routing->parse_route(current_routing, route);
232 }
233
234 /**
235  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
236  */
237 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
238 {
239   xbt_assert(current_routing->parse_ASroute,
240              "no defined method \"set_ASroute\" in \"%s\"",
241              current_routing->name);
242   current_routing->parse_ASroute(current_routing, ASroute);
243 }
244
245 /**
246  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
247  */
248 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
249 {
250   xbt_assert(current_routing->parse_bypassroute,
251              "Bypassing mechanism not implemented by routing '%s'",
252              current_routing->name);
253
254   current_routing->parse_bypassroute(current_routing, route);
255 }
256
257 /**
258  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
259  */
260 static void parse_E_bypassASroute(sg_platf_route_cbarg_t ASroute)
261 {
262   xbt_assert(current_routing->parse_bypassroute,
263              "Bypassing mechanism not implemented by routing '%s'",
264              current_routing->name);
265   current_routing->parse_bypassroute(current_routing, ASroute);
266 }
267
268 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
269 {
270   tmgr_trace_t tmgr_trace;
271   if (!trace->file || strcmp(trace->file, "") != 0) {
272     tmgr_trace = tmgr_trace_new_from_file(trace->file);
273   } else if (strcmp(trace->pc_data, "") == 0) {
274     tmgr_trace = NULL;
275   } else {
276     tmgr_trace =
277           tmgr_trace_new_from_string(trace->id, trace->pc_data,
278                                      trace->periodicity);
279   }
280   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
281 }
282
283 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
284 {
285   xbt_assert(xbt_dict_get_or_null
286               (traces_set_list, trace_connect->trace),
287               "Cannot connect trace %s to %s: trace unknown",
288               trace_connect->trace,
289               trace_connect->element);
290
291   switch (trace_connect->kind) {
292   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
293     xbt_dict_set(trace_connect_list_host_avail,
294         trace_connect->trace,
295         xbt_strdup(trace_connect->element), NULL);
296     break;
297   case SURF_TRACE_CONNECT_KIND_POWER:
298     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
299         xbt_strdup(trace_connect->element), NULL);
300     break;
301   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
302     xbt_dict_set(trace_connect_list_link_avail,
303         trace_connect->trace,
304         xbt_strdup(trace_connect->element), NULL);
305     break;
306   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
307     xbt_dict_set(trace_connect_list_bandwidth,
308         trace_connect->trace,
309         xbt_strdup(trace_connect->element), NULL);
310     break;
311   case SURF_TRACE_CONNECT_KIND_LATENCY:
312     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
313         xbt_strdup(trace_connect->element), NULL);
314     break;
315   default:
316     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
317         trace_connect->trace, trace_connect->element);
318     break;
319   }
320 }
321
322 extern int _sg_init_status; /* yay, this is an horrible hack */
323
324 /**
325  * \brief Make a new routing component to the platform
326  *
327  * Add a new autonomous system to the platform. Any elements (such as host,
328  * router or sub-AS) added after this call and before the corresponding call
329  * to sg_platf_new_AS_close() will be added to this AS.
330  *
331  * Once this function was called, the configuration concerning the used
332  * models cannot be changed anymore.
333  *
334  * @param AS_id name of this autonomous system. Must be unique in the platform
335  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
336  */
337 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
338 {
339   XBT_DEBUG("routing_AS_begin");
340   AS_t new_as;
341   routing_model_description_t model = NULL;
342
343   xbt_assert(!xbt_lib_get_or_null
344              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
345              "The AS \"%s\" already exists", AS->id);
346
347   _sg_init_status = 2; /* horrible hack: direct access to the global controlling the level of configuration to prevent any further config */
348
349   /* search the routing model */
350   switch(AS->routing){
351     case A_surfxml_AS_routing_Cluster:       model = &routing_models[SURF_MODEL_CLUSTER];break;
352     case A_surfxml_AS_routing_Dijkstra:      model = &routing_models[SURF_MODEL_DIJKSTRA];break;
353     case A_surfxml_AS_routing_DijkstraCache: model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
354     case A_surfxml_AS_routing_Floyd:         model = &routing_models[SURF_MODEL_FLOYD];break;
355     case A_surfxml_AS_routing_Full:          model = &routing_models[SURF_MODEL_FULL];break;
356     case A_surfxml_AS_routing_None:          model = &routing_models[SURF_MODEL_NONE];break;
357     case A_surfxml_AS_routing_RuleBased:     model = &routing_models[SURF_MODEL_RULEBASED];break;
358     case A_surfxml_AS_routing_Vivaldi:       model = &routing_models[SURF_MODEL_VIVALDI];break;
359     default: xbt_die("Not a valid model!!!");
360     break;
361   }
362
363   /* make a new routing component */
364   new_as = (AS_t) model->create();
365   new_as->model_desc = model;
366   new_as->hierarchy = SURF_ROUTING_NULL;
367   new_as->name = xbt_strdup(AS->id);
368
369   sg_routing_edge_t info = NULL;
370   info = xbt_new0(s_routing_edge_t, 1);
371
372   if (current_routing == NULL && routing_platf->root == NULL) {
373
374     /* it is the first one */
375     new_as->routing_father = NULL;
376     routing_platf->root = new_as;
377     info->id = -1;
378   } else if (current_routing != NULL && routing_platf->root != NULL) {
379
380     xbt_assert(!xbt_dict_get_or_null
381                (current_routing->routing_sons, AS->id),
382                "The AS \"%s\" already exists", AS->id);
383     /* it is a part of the tree */
384     new_as->routing_father = current_routing;
385     /* set the father behavior */
386     if (current_routing->hierarchy == SURF_ROUTING_NULL)
387       current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
388     /* add to the sons dictionary */
389     xbt_dict_set(current_routing->routing_sons, AS->id,
390                  (void *) new_as, NULL);
391     /* add to the father element list */
392     info->id = current_routing->parse_AS(current_routing, (void *) info);
393   } else {
394     THROWF(arg_error, 0, "All defined components must be belong to a AS");
395   }
396
397   info->rc_component = new_as->routing_father;
398   info->rc_type = SURF_NETWORK_ELEMENT_AS;
399   info->name = new_as->name;
400
401   xbt_lib_set(as_router_lib, info->name, ROUTING_ASR_LEVEL,
402               (void *) info);
403   XBT_DEBUG("Having set name '%s' id '%d'",new_as->name,info->id);
404
405   /* set the new current component of the tree */
406   current_routing = new_as;
407   current_routing->net_elem = info;
408
409 }
410
411 /**
412  * \brief Specify that the current description of AS is finished
413  *
414  * Once you've declared all the content of your AS, you have to close
415  * it with this call. Your AS is not usable until you call this function.
416  *
417  * @fixme: this call is not as robust as wanted: bad things WILL happen
418  * if you call it twice for the same AS, or if you forget calling it, or
419  * even if you add stuff to a closed AS
420  *
421  */
422 void routing_AS_end(sg_platf_AS_cbarg_t AS)
423 {
424
425   if (current_routing == NULL) {
426     THROWF(arg_error, 0, "Close an AS, but none was under construction");
427   } else {
428     if (current_routing->model_desc->end)
429       current_routing->model_desc->end(current_routing);
430     current_routing = current_routing->routing_father;
431   }
432 }
433
434 /* Aux Business methods */
435
436 /**
437  * \brief Get the AS father and the first elements of the chain
438  *
439  * \param src the source host name 
440  * \param dst the destination host name
441  * 
442  * Get the common father of the to processing units, and the first different 
443  * father in the chain
444  */
445 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
446                             AS_t * res_father,
447                             AS_t * res_src,
448                             AS_t * res_dst)
449 {
450   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
451 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
452   AS_t src_as, dst_as;
453   AS_t path_src[ELEMENTS_FATHER_MAXDEPTH];
454   AS_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
455   int index_src = 0;
456   int index_dst = 0;
457   AS_t current;
458   AS_t current_src;
459   AS_t current_dst;
460   AS_t father;
461
462   /* (1) find the as where the src and dst are located */
463   sg_routing_edge_t src_data = src;
464   sg_routing_edge_t dst_data = dst;
465   src_as = src_data->rc_component;
466   dst_as = dst_data->rc_component;
467 #ifndef NDEBUG
468   char* src_name = src_data->name;
469   char* dst_name = dst_data->name;
470 #endif
471
472   xbt_assert(src_as && dst_as,
473              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
474
475   /* (2) find the path to the root routing component */
476   for (current = src_as; current != NULL; current = current->routing_father) {
477     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
478       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
479     path_src[index_src++] = current;
480   }
481   for (current = dst_as; current != NULL; current = current->routing_father) {
482     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
483       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
484     path_dst[index_dst++] = current;
485   }
486
487   /* (3) find the common father */
488   do {
489     current_src = path_src[--index_src];
490     current_dst = path_dst[--index_dst];
491   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
492
493   /* (4) they are not in the same routing component, make the path */
494   if (current_src == current_dst)
495     father = current_src;
496   else
497     father = path_src[index_src + 1];
498
499   /* (5) result generation */
500   *res_father = father;         /* first the common father of src and dst */
501   *res_src = current_src;       /* second the first different father of src */
502   *res_dst = current_dst;       /* three  the first different father of dst */
503
504 #undef ELEMENTS_FATHER_MAXDEPTH
505 }
506
507 /* Global Business methods */
508
509 /**
510  * \brief Recursive function for get_route_latency
511  *
512  * \param src the source host name 
513  * \param dst the destination host name
514  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
515  * \param *latency the latency, if needed
516  * 
517  * This function is called by "get_route" and "get_latency". It allows to walk
518  * recursively through the ASes tree.
519  */
520 static void _get_route_and_latency(sg_routing_edge_t src, sg_routing_edge_t dst,
521                                    xbt_dynar_t * links, double *latency)
522 {
523   s_sg_platf_route_cbarg_t route;
524   memset(&route,0,sizeof(route));
525
526   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
527   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->name, dst->name);
528
529   /* Find how src and dst are interconnected */
530   AS_t common_father, src_father, dst_father;
531   elements_father(src, dst, &common_father, &src_father, &dst_father);
532   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
533       common_father->name,src_father->name,dst_father->name);
534
535   /* Check whether a direct bypass is defined */
536   sg_platf_route_cbarg_t e_route_bypass = NULL;
537   if (common_father->get_bypass_route)
538     e_route_bypass = common_father->get_bypass_route(common_father, src, dst, latency);
539
540   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
541   if (e_route_bypass) {
542     xbt_dynar_merge(links, &e_route_bypass->link_list);
543     generic_free_route(e_route_bypass);
544     return;
545   }
546
547   /* If src and dst are in the same AS, life is good */
548   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
549     route.link_list = *links;
550     common_father->get_route_and_latency(common_father, src, dst, &route,latency);
551     // if vivaldi latency+=vivaldi(src,dst)
552     return;
553   }
554
555   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
556
557   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
558   // Find the net_card corresponding to father
559   sg_routing_edge_t src_father_net_elm = src_father->net_elem;
560   sg_routing_edge_t dst_father_net_elm = dst_father->net_elem;
561
562   common_father->get_route_and_latency(common_father,
563                                        src_father_net_elm, dst_father_net_elm,
564                                        &route, latency);
565
566   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
567       "bad gateways for route from \"%s\" to \"%s\"", src->name, dst->name);
568
569   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
570   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
571
572   /* If source gateway is not our source, we have to recursively find our way up to this point */
573   if (src != src_gateway_net_elm)
574     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
575   xbt_dynar_merge(links, &route.link_list);
576
577   /* If dest gateway is not our destination, we have to recursively find our way from this point */
578   if (dst_gateway_net_elm != dst)
579     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
580
581   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
582 }
583
584 /**
585  * \brief Find a route between hosts
586  *
587  * \param src the network_element_t for src host
588  * \param dst the network_element_t for dst host
589  * \param route where to store the list of links.
590  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
591  * \param latency where to store the latency experienced on the path (or NULL if not interested)
592  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
593  * \pre route!=NULL
594  *
595  * walk through the routing components tree and find a route between hosts
596  * by calling the differents "get_route" functions in each routing component.
597  */
598 void routing_get_route_and_latency(sg_routing_edge_t src,
599                                    sg_routing_edge_t dst,
600                                    xbt_dynar_t * route, double *latency)
601 {
602   XBT_DEBUG("routing_get_route_and_latency from %s to %s",src->name,dst->name);
603   if (!*route) {
604     xbt_dynar_reset(routing_platf->last_route);
605     *route = routing_platf->last_route;
606   }
607
608   _get_route_and_latency(src, dst, route, latency);
609
610   xbt_assert(!latency || *latency >= 0.0,
611              "negative latency on route between \"%s\" and \"%s\"", src->name, dst->name);
612 }
613
614 static xbt_dynar_t recursive_get_onelink_routes(AS_t rc)
615 {
616   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
617
618   //adding my one link routes
619   xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
620   if (onelink_mine)
621     xbt_dynar_merge(&ret,&onelink_mine);
622
623   //recursing
624   char *key;
625   xbt_dict_cursor_t cursor = NULL;
626   AS_t rc_child;
627   xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
628     xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
629     if (onelink_child)
630       xbt_dynar_merge(&ret,&onelink_child);
631   }
632   return ret;
633 }
634
635 static xbt_dynar_t get_onelink_routes(void)
636 {
637   return recursive_get_onelink_routes(routing_platf->root);
638 }
639
640 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
641 {
642   sg_routing_edge_t rc = sg_routing_edge_by_name_or_null(name);
643   if (rc)
644     return rc->rc_type;
645
646   return SURF_NETWORK_ELEMENT_NULL;
647 }
648
649 /**
650  * \brief Generic method: create the global routing schema
651  * 
652  * Make a global routing structure and set all the parsing functions.
653  */
654 void routing_model_create( void *loopback)
655 {
656   /* config the uniq global routing */
657   routing_platf = xbt_new0(s_routing_platf_t, 1);
658   routing_platf->root = NULL;
659   routing_platf->get_onelink_routes = get_onelink_routes;
660   routing_platf->loopback = loopback;
661   routing_platf->last_route = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
662   /* no current routing at moment */
663   current_routing = NULL;
664 }
665
666
667 /* ************************************************** */
668 /* ********** PATERN FOR NEW ROUTING **************** */
669
670 /* The minimal configuration of a new routing model need the next functions,
671  * also you need to set at the start of the file, the new model in the model
672  * list. Remember keep the null ending of the list.
673  */
674 /*** Routing model structure ***/
675 // typedef struct {
676 //   s_routing_component_t generic_routing;
677 //   /* things that your routing model need */
678 // } s_routing_component_NEW_t,*routing_component_NEW_t;
679
680 /*** Parse routing model functions ***/
681 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
682 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
683 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
684 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
685 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
686
687 /*** Business methods ***/
688 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
689 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
690 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
691
692 /*** Creation routing model functions ***/
693 // static void* model_NEW_create(void) {
694 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
695 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
696 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
697 //   new_component->generic_routing.set_route = model_NEW_set_route;
698 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
699 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
700 //   new_component->generic_routing.get_route = NEW_get_route;
701 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
702 //   new_component->generic_routing.finalize = NEW_finalize;
703 //   /* initialization of internal structures */
704 //   return new_component;
705 // } /* mandatory */
706 // static void  model_NEW_load(void) {}   /* mandatory */
707 // static void  model_NEW_unload(void) {} /* mandatory */
708 // static void  model_NEW_end(void) {}    /* mandatory */
709
710 /* ************************************************************************** */
711 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
712
713 void routing_cluster_add_backbone(void* bb) {
714   xbt_assert(current_routing->model_desc == &routing_models[SURF_MODEL_CLUSTER],
715         "You have to be in model Cluster to use tag backbone!");
716   xbt_assert(!((as_cluster_t)current_routing)->backbone,"The backbone link is already defined!");
717   ((as_cluster_t)current_routing)->backbone = bb;
718   XBT_DEBUG("Add a backbone to AS '%s'",current_routing->name);
719 }
720
721 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
722 {
723   int start, end, i;
724   char *groups , *host_id , *link_id = NULL;
725   unsigned int iter;
726   xbt_dynar_t radical_elements;
727   xbt_dynar_t radical_ends;
728
729   //Make all hosts
730   radical_elements = xbt_str_split(cabinet->radical, ",");
731   xbt_dynar_foreach(radical_elements, iter, groups) {
732
733     radical_ends = xbt_str_split(groups, "-");
734     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
735
736     switch (xbt_dynar_length(radical_ends)) {
737     case 1:
738       end = start;
739       break;
740     case 2:
741       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
742       break;
743     default:
744       surf_parse_error("Malformed radical");
745       break;
746     }
747     s_sg_platf_host_cbarg_t host;
748     memset(&host, 0, sizeof(host));
749     host.initial_state = SURF_RESOURCE_ON;
750     host.power_peak = cabinet->power;
751     host.power_scale = 1.0;
752     host.core_amount = 1;
753
754     s_sg_platf_link_cbarg_t link;
755     memset(&link, 0, sizeof(link));
756     link.state = SURF_RESOURCE_ON;
757     link.policy = SURF_LINK_FULLDUPLEX;
758     link.latency = cabinet->lat;
759     link.bandwidth = cabinet->bw;
760
761     s_sg_platf_host_link_cbarg_t host_link;
762     memset(&host_link, 0, sizeof(host_link));
763
764     for (i = start; i <= end; i++) {
765       host_id = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
766       link_id = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
767       host.id = host_id;
768       link.id = link_id;
769       sg_platf_new_host(&host);
770       sg_platf_new_link(&link);
771
772       char* link_up = bprintf("%s_UP",link_id);
773       char* link_down = bprintf("%s_DOWN",link_id);
774       host_link.id = host_id;
775       host_link.link_up = link_up;
776       host_link.link_down= link_down;
777       sg_platf_new_host_link(&host_link);
778
779       free(host_id);
780       free(link_id);
781       free(link_up);
782       free(link_down);
783     }
784
785     xbt_dynar_free(&radical_ends);
786   }
787   xbt_dynar_free(&radical_elements);
788 }
789
790 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
791 {
792   char *host_id, *groups, *link_id = NULL;
793   xbt_dict_t patterns = NULL;
794
795   s_sg_platf_host_cbarg_t host;
796   s_sg_platf_link_cbarg_t link;
797
798   unsigned int iter;
799   int start, end, i;
800   xbt_dynar_t radical_elements;
801   xbt_dynar_t radical_ends;
802
803   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
804       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
805     patterns = xbt_dict_new_homogeneous(xbt_free_f);
806     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
807     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
808     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
809   }
810
811   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
812   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
813   AS.id = cluster->id;
814   AS.routing = A_surfxml_AS_routing_Cluster;
815   sg_platf_new_AS_begin(&AS);
816
817   current_routing->link_up_down_list
818             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
819
820   //Make all hosts
821   radical_elements = xbt_str_split(cluster->radical, ",");
822   xbt_dynar_foreach(radical_elements, iter, groups) {
823
824     radical_ends = xbt_str_split(groups, "-");
825     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
826
827     switch (xbt_dynar_length(radical_ends)) {
828     case 1:
829       end = start;
830       break;
831     case 2:
832       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
833       break;
834     default:
835       surf_parse_error("Malformed radical");
836       break;
837     }
838     for (i = start; i <= end; i++) {
839       host_id =
840           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
841       link_id = bprintf("%s_link_%d", cluster->id, i);
842
843       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
844
845       memset(&host, 0, sizeof(host));
846       host.id = host_id;
847       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
848         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
849         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
850         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
851         host.power_trace = tmgr_trace_new_from_file(avail_file);
852         xbt_free(avail_file);
853       } else {
854         XBT_DEBUG("\tavailability_file=\"\"");
855       }
856
857       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
858         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
859         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
860         host.state_trace = tmgr_trace_new_from_file(avail_file);
861         xbt_free(avail_file);
862       } else {
863         XBT_DEBUG("\tstate_file=\"\"");
864       }
865
866       host.power_peak = cluster->power;
867       host.power_scale = 1.0;
868       host.core_amount = cluster->core_amount;
869       host.initial_state = SURF_RESOURCE_ON;
870       host.coord = "";
871       sg_platf_new_host(&host);
872       XBT_DEBUG("</host>");
873
874       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
875                 cluster->bw, cluster->lat);
876
877       memset(&link, 0, sizeof(link));
878       link.id = link_id;
879       link.bandwidth = cluster->bw;
880       link.latency = cluster->lat;
881       link.state = SURF_RESOURCE_ON;
882       link.policy = cluster->sharing_policy;
883       sg_platf_new_link(&link);
884
885       s_surf_parsing_link_up_down_t info;
886
887       if (link.policy == SURF_LINK_FULLDUPLEX) {
888         char *tmp_link = bprintf("%s_UP", link_id);
889         info.link_up =
890             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
891         free(tmp_link);
892         tmp_link = bprintf("%s_DOWN", link_id);
893         info.link_down =
894             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
895         free(tmp_link);
896       } else {
897         info.link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
898         info.link_down = info.link_up;
899       }
900       
901       if(cluster->limiter_link!=0){      
902         char *tmp_link = bprintf("%s_limiter", link_id);
903         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
904                 cluster->limiter_link);
905
906         
907         memset(&link, 0, sizeof(link));
908         link.id = tmp_link;
909         link.bandwidth = cluster->limiter_link;
910         link.latency = 0;
911         link.state = SURF_RESOURCE_ON;
912         link.policy = SURF_LINK_SHARED;
913         sg_platf_new_link(&link);
914          info.limiter_link =
915             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
916         free(tmp_link);
917       }else{
918         info.limiter_link =NULL;
919       }
920       
921       
922       xbt_dynar_push(current_routing->link_up_down_list,&info);
923       xbt_free(link_id);
924       xbt_free(host_id);
925     }
926
927     xbt_dynar_free(&radical_ends);
928   }
929   xbt_dynar_free(&radical_elements);
930
931   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
932   // and it's very useful to connect clusters together
933   XBT_DEBUG(" ");
934   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
935   char *newid = NULL;
936   s_sg_platf_router_cbarg_t router;
937   memset(&router, 0, sizeof(router));
938   router.id = cluster->router_id;
939   router.coord = "";
940   if (!router.id || !strcmp(router.id, ""))
941     router.id = newid =
942         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
943                 cluster->suffix);
944   sg_platf_new_router(&router);
945   ((as_cluster_t)current_routing)->router = xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
946   free(newid);
947
948   //Make the backbone
949   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
950     char *link_backbone = bprintf("%s_backbone", cluster->id);
951     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
952               cluster->bb_bw, cluster->bb_lat);
953
954     memset(&link, 0, sizeof(link));
955     link.id = link_backbone;
956     link.bandwidth = cluster->bb_bw;
957     link.latency = cluster->bb_lat;
958     link.state = SURF_RESOURCE_ON;
959     link.policy = cluster->bb_sharing_policy;
960
961     sg_platf_new_link(&link);
962
963     routing_cluster_add_backbone(xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
964
965     free(link_backbone);
966   }
967
968   XBT_DEBUG("</AS>");
969   sg_platf_new_AS_end();
970   XBT_DEBUG(" ");
971   xbt_dict_free(&patterns); // no op if it were never set
972 }
973
974 static void routing_parse_postparse(void) {
975   xbt_dict_free(&random_value);
976 }
977
978 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
979 {
980   char *host_id = NULL;
981   char *link_id;
982
983   XBT_DEBUG(" ");
984   host_id = HOST_PEER(peer->id);
985   link_id = LINK_PEER(peer->id);
986
987   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
988   s_sg_platf_host_cbarg_t host;
989   memset(&host, 0, sizeof(host));
990   host.initial_state = SURF_RESOURCE_ON;
991   host.id = host_id;
992   host.power_peak = peer->power;
993   host.power_scale = 1.0;
994   host.power_trace = peer->availability_trace;
995   host.state_trace = peer->state_trace;
996   host.core_amount = 1;
997   host.coord = peer->coord;
998   sg_platf_new_host(&host);
999
1000   s_sg_platf_link_cbarg_t link;
1001   memset(&link, 0, sizeof(link));
1002   link.state = SURF_RESOURCE_ON;
1003   link.policy = SURF_LINK_SHARED;
1004   link.latency = peer->lat;
1005
1006   char* link_up = bprintf("%s_UP",link_id);
1007   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1008             peer->bw_out, peer->lat);
1009   link.id = link_up;
1010   link.bandwidth = peer->bw_out;
1011   sg_platf_new_link(&link);
1012
1013   char* link_down = bprintf("%s_DOWN",link_id);
1014   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1015             peer->bw_in, peer->lat);
1016   link.id = link_down;
1017   link.bandwidth = peer->bw_in;
1018   sg_platf_new_link(&link);
1019
1020   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1021   s_sg_platf_host_link_cbarg_t host_link;
1022   memset(&host_link, 0, sizeof(host_link));
1023   host_link.id = host_id;
1024   host_link.link_up = link_up;
1025   host_link.link_down= link_down;
1026   sg_platf_new_host_link(&host_link);
1027
1028   XBT_DEBUG(" ");
1029
1030   //xbt_dynar_free(&tab_elements_num);
1031   free(host_id);
1032   free(link_id);
1033   free(link_up);
1034   free(link_down);
1035 }
1036
1037 static void routing_parse_Srandom(void)
1038 {
1039   double mean, std, min, max, seed;
1040   char *random_id = A_surfxml_random_id;
1041   char *random_radical = A_surfxml_random_radical;
1042   char *rd_name = NULL;
1043   char *rd_value;
1044   mean = surf_parse_get_double(A_surfxml_random_mean);
1045   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1046   min = surf_parse_get_double(A_surfxml_random_min);
1047   max = surf_parse_get_double(A_surfxml_random_max);
1048   seed = surf_parse_get_double(A_surfxml_random_seed);
1049
1050   double res = 0;
1051   int i = 0;
1052   random_data_t random = xbt_new0(s_random_data_t, 1);
1053   char *tmpbuf;
1054
1055   xbt_dynar_t radical_elements;
1056   unsigned int iter;
1057   char *groups;
1058   int start, end;
1059   xbt_dynar_t radical_ends;
1060
1061   switch (A_surfxml_random_generator) {
1062   case AU_surfxml_random_generator:
1063   case A_surfxml_random_generator_NONE:
1064     random->generator = NONE;
1065     break;
1066   case A_surfxml_random_generator_DRAND48:
1067     random->generator = DRAND48;
1068     break;
1069   case A_surfxml_random_generator_RAND:
1070     random->generator = RAND;
1071     break;
1072   case A_surfxml_random_generator_RNGSTREAM:
1073     random->generator = RNGSTREAM;
1074     break;
1075   default:
1076     surf_parse_error("Invalid random generator");
1077     break;
1078   }
1079   random->seed = seed;
1080   random->min = min;
1081   random->max = max;
1082
1083   /* Check user stupidities */
1084   if (max < min)
1085     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1086   if (mean < min)
1087     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1088   if (mean > max)
1089     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1090
1091   /* normalize the mean and standard deviation before storing */
1092   random->mean = (mean - min) / (max - min);
1093   random->std = std / (max - min);
1094
1095   if (random->mean * (1 - random->mean) < random->std * random->std)
1096     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1097            random->mean, random->std);
1098
1099   XBT_DEBUG
1100       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1101        random_id, random->min, random->max, random->mean, random->std,
1102        (int)random->generator, random->seed, random_radical);
1103
1104   if (!random_value)
1105     random_value = xbt_dict_new_homogeneous(free);
1106
1107   if (!strcmp(random_radical, "")) {
1108     res = random_generate(random);
1109     rd_value = bprintf("%f", res);
1110     xbt_dict_set(random_value, random_id, rd_value, NULL);
1111   } else {
1112     radical_elements = xbt_str_split(random_radical, ",");
1113     xbt_dynar_foreach(radical_elements, iter, groups) {
1114       radical_ends = xbt_str_split(groups, "-");
1115       switch (xbt_dynar_length(radical_ends)) {
1116       case 1:
1117         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1118                    "Custom Random '%s' already exists !", random_id);
1119         res = random_generate(random);
1120         tmpbuf =
1121             bprintf("%s%d", random_id,
1122                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1123         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1124         xbt_free(tmpbuf);
1125         break;
1126
1127       case 2:
1128         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1129         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1130         for (i = start; i <= end; i++) {
1131           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1132                      "Custom Random '%s' already exists !", bprintf("%s%d",
1133                                                                     random_id,
1134                                                                     i));
1135           res = random_generate(random);
1136           tmpbuf = bprintf("%s%d", random_id, i);
1137           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1138           xbt_free(tmpbuf);
1139         }
1140         break;
1141       default:
1142         XBT_CRITICAL("Malformed radical");
1143         break;
1144       }
1145       res = random_generate(random);
1146       rd_name = bprintf("%s_router", random_id);
1147       rd_value = bprintf("%f", res);
1148       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1149
1150       xbt_dynar_free(&radical_ends);
1151     }
1152     free(rd_name);
1153     xbt_dynar_free(&radical_elements);
1154   }
1155 }
1156
1157 void routing_register_callbacks()
1158 {
1159   sg_platf_host_add_cb(parse_S_host);
1160   sg_platf_router_add_cb(parse_S_router);
1161   sg_platf_host_link_add_cb(parse_S_host_link);
1162   sg_platf_route_add_cb(parse_E_route);
1163   sg_platf_ASroute_add_cb(parse_E_ASroute);
1164   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1165   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1166
1167   sg_platf_cluster_add_cb(routing_parse_cluster);
1168   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1169
1170   sg_platf_peer_add_cb(routing_parse_peer);
1171   sg_platf_postparse_add_cb(routing_parse_postparse);
1172
1173   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1174   sg_platf_AS_end_add_cb(routing_AS_end);
1175   sg_platf_AS_begin_add_cb(routing_AS_begin);
1176
1177   sg_platf_trace_add_cb(routing_parse_trace);
1178   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1179
1180 #ifdef HAVE_TRACING
1181   instr_routing_define_callbacks();
1182 #endif
1183 }
1184
1185 /**
1186  * \brief Recursive function for finalize
1187  *
1188  * \param rc the source host name
1189  *
1190  * This fuction is call by "finalize". It allow to finalize the
1191  * AS or routing components. It delete all the structures.
1192  */
1193 static void finalize_rec(AS_t as) {
1194   xbt_dict_cursor_t cursor = NULL;
1195   char *key;
1196   AS_t elem;
1197
1198   xbt_dict_foreach(as->routing_sons, cursor, key, elem) {
1199     finalize_rec(elem);
1200   }
1201
1202   as->finalize(as);
1203 }
1204
1205 /** \brief Frees all memory allocated by the routing module */
1206 void routing_exit(void) {
1207   if (!routing_platf)
1208     return;
1209   xbt_dynar_free(&routing_platf->last_route);
1210   finalize_rec(routing_platf->root);
1211   xbt_free(routing_platf);
1212 }