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rename routing_component to as, since that's just an AS at the end of the day
[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 xbt_lib_t host_lib;
16 int ROUTING_HOST_LEVEL;         //Routing level
17 int SURF_CPU_LEVEL;             //Surf cpu level
18 int SURF_WKS_LEVEL;             //Surf workstation level
19 int SIMIX_HOST_LEVEL;           //Simix level
20 int MSG_HOST_LEVEL;             //Msg level
21 int SD_HOST_LEVEL;              //Simdag level
22 int COORD_HOST_LEVEL;           //Coordinates level
23 int NS3_HOST_LEVEL;             //host node for ns3
24
25 xbt_lib_t link_lib;
26 int SD_LINK_LEVEL;              //Simdag level
27 int SURF_LINK_LEVEL;            //Surf level
28 int NS3_LINK_LEVEL;             //link for ns3
29
30 xbt_lib_t as_router_lib;
31 int ROUTING_ASR_LEVEL;          //Routing level
32 int COORD_ASR_LEVEL;            //Coordinates level
33 int NS3_ASR_LEVEL;              //host node for ns3
34
35 static xbt_dict_t patterns = NULL;
36 static xbt_dict_t random_value = NULL;
37
38 /* Global vars */
39 routing_global_t global_routing = NULL;
40 AS_t current_routing = NULL;
41 routing_model_description_t current_routing_model = NULL;
42
43 /* global parse functions */
44 xbt_dynar_t link_list = NULL;   /* temporary store of current list link of a route */
45 static const char *src = NULL;  /* temporary store the source name of a route */
46 static const char *dst = NULL;  /* temporary store the destination name of a route */
47 static char *gw_src = NULL;     /* temporary store the gateway source name of a route */
48 static char *gw_dst = NULL;     /* temporary store the gateway destination name of a route */
49
50 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
51
52 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
53 static void routing_parse_Srandom(void);        /* random bypass */
54
55 static char *replace_random_parameter(char *chaine);
56 static void routing_parse_postparse(void);
57
58 /* this lines are only for replace use like index in the model table */
59 typedef enum {
60   SURF_MODEL_FULL = 0,
61   SURF_MODEL_FLOYD,
62   SURF_MODEL_DIJKSTRA,
63   SURF_MODEL_DIJKSTRACACHE,
64   SURF_MODEL_NONE,
65   SURF_MODEL_RULEBASED,
66   SURF_MODEL_VIVALDI,
67   SURF_MODEL_CLUSTER
68 } e_routing_types;
69
70 struct s_model_type routing_models[] = {
71   {"Full",
72    "Full routing data (fast, large memory requirements, fully expressive)",
73    model_full_create, model_full_end},
74   {"Floyd",
75    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
76    model_floyd_create, model_floyd_end},
77   {"Dijkstra",
78    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
79    model_dijkstra_create, model_dijkstra_both_end},
80   {"DijkstraCache",
81    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
82    model_dijkstracache_create, model_dijkstra_both_end},
83   {"none", "No routing (usable with Constant network only)",
84    model_none_create,  NULL},
85   {"RuleBased", "Rule-Based routing data (...)",
86    model_rulebased_create, NULL},
87   {"Vivaldi", "Vivaldi routing",
88    model_vivaldi_create, NULL},
89   {"Cluster", "Cluster routing",
90    model_cluster_create, NULL},
91   {NULL, NULL, NULL, NULL}
92 };
93
94 /**
95  * \brief Add a "host" to the network element list
96  */
97 static void parse_S_host(sg_platf_host_cbarg_t host)
98 {
99   network_element_info_t info = NULL;
100   if (current_routing->hierarchy == SURF_ROUTING_NULL)
101     current_routing->hierarchy = SURF_ROUTING_BASE;
102   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
103              "Reading a host, processing unit \"%s\" already exists", host->id);
104
105   (*(current_routing->parse_PU)) (current_routing, host->id);
106   info = xbt_new0(s_network_element_info_t, 1);
107   info->rc_component = current_routing;
108   info->rc_type = SURF_NETWORK_ELEMENT_HOST;
109   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
110   if (host->coord && strcmp(host->coord, "")) {
111     if (!COORD_HOST_LEVEL)
112       xbt_die
113           ("To use coordinates, you must set configuration 'coordinates' to 'yes'");
114     xbt_dynar_t ctn = xbt_str_split_str(host->coord, " ");
115     xbt_dynar_shrink(ctn, 0);
116     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
117   }
118 }
119
120 /**
121  * \brief Add a "router" to the network element list
122  */
123 static void parse_S_router(sg_platf_router_cbarg_t router)
124 {
125   network_element_info_t info = NULL;
126   if (current_routing->hierarchy == SURF_ROUTING_NULL)
127     current_routing->hierarchy = SURF_ROUTING_BASE;
128   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
129              "Reading a router, processing unit \"%s\" already exists",
130              router->id);
131
132   (*(current_routing->parse_PU)) (current_routing, router->id);
133   info = xbt_new0(s_network_element_info_t, 1);
134   info->rc_component = current_routing;
135   info->rc_type = SURF_NETWORK_ELEMENT_ROUTER;
136
137   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
138   if (strcmp(router->coord, "")) {
139     if (!COORD_ASR_LEVEL)
140       xbt_die
141           ("To use coordinates, you must set configuration 'coordinates' to 'yes'");
142     xbt_dynar_t ctn = xbt_str_split_str(router->coord, " ");
143     xbt_dynar_shrink(ctn, 0);
144     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
145   }
146 }
147
148
149 /**
150  * \brief Set the end points for a route
151  */
152 static void routing_parse_S_route(void)
153 {
154   if (src != NULL && dst != NULL && link_list != NULL)
155     THROWF(arg_error, 0, "Route between %s to %s can not be defined",
156            A_surfxml_route_src, A_surfxml_route_dst);
157   src = A_surfxml_route_src;
158   dst = A_surfxml_route_dst;
159   xbt_assert(strlen(src) > 0 || strlen(dst) > 0,
160              "Some limits are null in the route between \"%s\" and \"%s\"",
161              src, dst);
162   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
163 }
164
165 /**
166  * \brief Set the end points and gateways for a ASroute
167  */
168 static void routing_parse_S_ASroute(void)
169 {
170   if (src != NULL && dst != NULL && link_list != NULL)
171     THROWF(arg_error, 0, "Route between %s to %s can not be defined",
172            A_surfxml_ASroute_src, A_surfxml_ASroute_dst);
173   src = A_surfxml_ASroute_src;
174   dst = A_surfxml_ASroute_dst;
175   gw_src = A_surfxml_ASroute_gw_src;
176   gw_dst = A_surfxml_ASroute_gw_dst;
177   xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
178              || strlen(gw_dst) > 0,
179              "Some limits are null in the route between \"%s\" and \"%s\"",
180              src, dst);
181   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
182 }
183
184 /**
185  * \brief Set the end points for a bypassRoute
186  */
187 static void routing_parse_S_bypassRoute(void)
188 {
189   if (src != NULL && dst != NULL && link_list != NULL)
190     THROWF(arg_error, 0,
191            "Bypass Route between %s to %s can not be defined",
192            A_surfxml_bypassRoute_src, A_surfxml_bypassRoute_dst);
193   src = A_surfxml_bypassRoute_src;
194   dst = A_surfxml_bypassRoute_dst;
195   gw_src = A_surfxml_bypassRoute_gw_src;
196   gw_dst = A_surfxml_bypassRoute_gw_dst;
197   xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
198              || strlen(gw_dst) > 0,
199              "Some limits are null in the route between \"%s\" and \"%s\"",
200              src, dst);
201   link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
202 }
203
204 /**
205  * \brief Set a new link on the actual list of link for a route or ASroute from XML
206  */
207
208 static void routing_parse_link_ctn(void)
209 {
210   char *link_id;
211   switch (A_surfxml_link_ctn_direction) {
212   case AU_surfxml_link_ctn_direction:
213   case A_surfxml_link_ctn_direction_NONE:
214     link_id = xbt_strdup(A_surfxml_link_ctn_id);
215     break;
216   case A_surfxml_link_ctn_direction_UP:
217     link_id = bprintf("%s_UP", A_surfxml_link_ctn_id);
218     break;
219   case A_surfxml_link_ctn_direction_DOWN:
220     link_id = bprintf("%s_DOWN", A_surfxml_link_ctn_id);
221     break;
222   }
223   xbt_dynar_push(link_list, &link_id);
224 }
225
226 /**
227  * \brief Store the route by calling the set_route function of the current routing component
228  */
229 static void routing_parse_E_route(void)
230 {
231   route_extended_t route = xbt_new0(s_route_extended_t, 1);
232   route->generic_route.link_list = link_list;
233   xbt_assert(current_routing->parse_route,
234              "no defined method \"set_route\" in \"%s\"",
235              current_routing->name);
236   (*(current_routing->parse_route)) (current_routing, src, dst, route);
237   link_list = NULL;
238   src = NULL;
239   dst = NULL;
240 }
241
242 /**
243  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
244  */
245 static void routing_parse_E_ASroute(void)
246 {
247   route_extended_t e_route = xbt_new0(s_route_extended_t, 1);
248   e_route->generic_route.link_list = link_list;
249   e_route->src_gateway = xbt_strdup(gw_src);
250   e_route->dst_gateway = xbt_strdup(gw_dst);
251   xbt_assert(current_routing->parse_ASroute,
252              "no defined method \"set_ASroute\" in \"%s\"",
253              current_routing->name);
254   (*(current_routing->parse_ASroute)) (current_routing, src, dst, e_route);
255   link_list = NULL;
256   src = NULL;
257   dst = NULL;
258   gw_src = NULL;
259   gw_dst = NULL;
260 }
261
262 /**
263  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
264  */
265 static void routing_parse_E_bypassRoute(void)
266 {
267   route_extended_t e_route = xbt_new0(s_route_extended_t, 1);
268   e_route->generic_route.link_list = link_list;
269   e_route->src_gateway = xbt_strdup(gw_src);
270   e_route->dst_gateway = xbt_strdup(gw_dst);
271   xbt_assert(current_routing->parse_bypassroute,
272              "Bypassing mechanism not implemented by routing '%s'",
273              current_routing->name);
274   (*(current_routing->parse_bypassroute)) (current_routing, src, dst, e_route);
275   link_list = NULL;
276   src = NULL;
277   dst = NULL;
278   gw_src = NULL;
279   gw_dst = NULL;
280 }
281
282 /**
283  * \brief Make a new routing component to the platform
284  *
285  * Add a new autonomous system to the platform. Any elements (such as host,
286  * router or sub-AS) added after this call and before the corresponding call
287  * to sg_platf_new_AS_close() will be added to this AS.
288  *
289  * Once this function was called, the configuration concerning the used
290  * models cannot be changed anymore.
291  *
292  * @param AS_id name of this autonomous system. Must be unique in the platform
293  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
294  */
295 void routing_AS_begin(const char *AS_id, const char *wanted_routing_type)
296 {
297   AS_t new_routing;
298   routing_model_description_t model = NULL;
299   int cpt;
300
301   /* search the routing model */
302   for (cpt = 0; routing_models[cpt].name; cpt++)
303     if (!strcmp(wanted_routing_type, routing_models[cpt].name))
304       model = &routing_models[cpt];
305   /* if its not exist, error */
306   if (model == NULL) {
307     fprintf(stderr, "Routing model %s not found. Existing models:\n",
308             wanted_routing_type);
309     for (cpt = 0; routing_models[cpt].name; cpt++)
310       fprintf(stderr, "   %s: %s\n", routing_models[cpt].name,
311               routing_models[cpt].desc);
312     xbt_die(NULL);
313   }
314
315   /* make a new routing component */
316   new_routing = (AS_t) (*(model->create)) ();
317   new_routing->routing = model;
318   new_routing->hierarchy = SURF_ROUTING_NULL;
319   new_routing->name = xbt_strdup(AS_id);
320   new_routing->routing_sons = xbt_dict_new();
321
322   if (current_routing == NULL && global_routing->root == NULL) {
323
324     /* it is the first one */
325     new_routing->routing_father = NULL;
326     global_routing->root = new_routing;
327
328   } else if (current_routing != NULL && global_routing->root != NULL) {
329
330     xbt_assert(!xbt_dict_get_or_null
331                (current_routing->routing_sons, AS_id),
332                "The AS \"%s\" already exists", AS_id);
333     /* it is a part of the tree */
334     new_routing->routing_father = current_routing;
335     /* set the father behavior */
336     if (current_routing->hierarchy == SURF_ROUTING_NULL)
337       current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
338     /* add to the sons dictionary */
339     xbt_dict_set(current_routing->routing_sons, AS_id,
340                  (void *) new_routing, NULL);
341     /* add to the father element list */
342     (*(current_routing->parse_AS)) (current_routing, AS_id);
343   } else {
344     THROWF(arg_error, 0, "All defined components must be belong to a AS");
345   }
346   /* set the new current component of the tree */
347   current_routing = new_routing;
348 }
349
350 /**
351  * \brief Specify that the current description of AS is finished
352  *
353  * Once you've declared all the content of your AS, you have to close
354  * it with this call. Your AS is not usable until you call this function.
355  *
356  * @fixme: this call is not as robust as wanted: bad things WILL happen
357  * if you call it twice for the same AS, or if you forget calling it, or
358  * even if you add stuff to a closed AS
359  *
360  */
361 void routing_AS_end()
362 {
363
364   if (current_routing == NULL) {
365     THROWF(arg_error, 0, "Close an AS, but none was under construction");
366   } else {
367     network_element_info_t info = NULL;
368     xbt_assert(!xbt_lib_get_or_null
369                (as_router_lib, current_routing->name, ROUTING_ASR_LEVEL),
370                "The AS \"%s\" already exists", current_routing->name);
371     info = xbt_new0(s_network_element_info_t, 1);
372     info->rc_component = current_routing->routing_father;
373     info->rc_type = SURF_NETWORK_ELEMENT_AS;
374     xbt_lib_set(as_router_lib, current_routing->name, ROUTING_ASR_LEVEL,
375                 (void *) info);
376
377     if (current_routing->routing->end)
378       (*(current_routing->routing->end)) ();
379     current_routing = current_routing->routing_father;
380   }
381 }
382
383 /* Aux Business methods */
384
385 /**
386  * \brief Get the AS father and the first elements of the chain
387  *
388  * \param src the source host name 
389  * \param dst the destination host name
390  * 
391  * Get the common father of the to processing units, and the first different 
392  * father in the chain
393  */
394 static void elements_father(const char *src, const char *dst,
395                             AS_t * res_father,
396                             AS_t * res_src,
397                             AS_t * res_dst)
398 {
399   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
400 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
401   AS_t src_as, dst_as;
402   AS_t path_src[ELEMENTS_FATHER_MAXDEPTH];
403   AS_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
404   int index_src = 0;
405   int index_dst = 0;
406   AS_t current;
407   AS_t current_src;
408   AS_t current_dst;
409   AS_t father;
410
411   /* (1) find the as where the src and dst are located */
412   network_element_info_t src_data = xbt_lib_get_or_null(host_lib, src,
413                                                         ROUTING_HOST_LEVEL);
414   network_element_info_t dst_data = xbt_lib_get_or_null(host_lib, dst,
415                                                         ROUTING_HOST_LEVEL);
416   if (!src_data)
417     src_data = xbt_lib_get_or_null(as_router_lib, src, ROUTING_ASR_LEVEL);
418   if (!dst_data)
419     dst_data = xbt_lib_get_or_null(as_router_lib, dst, ROUTING_ASR_LEVEL);
420   src_as = src_data->rc_component;
421   dst_as = dst_data->rc_component;
422
423   xbt_assert(src_as && dst_as,
424              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src, dst);
425
426   /* (2) find the path to the root routing component */
427   for (current = src_as; current != NULL; current = current->routing_father) {
428     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
429       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
430     path_src[index_src++] = current;
431   }
432   for (current = dst_as; current != NULL; current = current->routing_father) {
433     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
434       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
435     path_dst[index_dst++] = current;
436   }
437
438   /* (3) find the common father */
439   do {
440     current_src = path_src[--index_src];
441     current_dst = path_dst[--index_dst];
442   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
443
444   /* (4) they are not in the same routing component, make the path */
445   if (current_src == current_dst)
446     father = current_src;
447   else
448     father = path_src[index_src + 1];
449
450   /* (5) result generation */
451   *res_father = father;         /* first the common father of src and dst */
452   *res_src = current_src;       /* second the first different father of src */
453   *res_dst = current_dst;       /* three  the first different father of dst */
454
455 #undef ELEMENTS_FATHER_MAXDEPTH
456 }
457
458 /* Global Business methods */
459
460 /**
461  * \brief Recursive function for get_route_latency
462  *
463  * \param src the source host name 
464  * \param dst the destination host name
465  * \param *e_route the route where the links are stored
466  * \param *latency the latency, if needed
467  * 
468  * This function is called by "get_route" and "get_latency". It allows to walk
469  * recursively through the routing components tree.
470  */
471 static void _get_route_latency(const char *src, const char *dst,
472                                xbt_dynar_t * route, double *latency)
473 {
474   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src, dst);
475   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
476
477   AS_t common_father;
478   AS_t src_father;
479   AS_t dst_father;
480   elements_father(src, dst, &common_father, &src_father, &dst_father);
481
482   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
483
484     route_extended_t e_route = NULL;
485     if (route) {
486       e_route = common_father->get_route(common_father, src, dst);
487       xbt_assert(e_route, "no route between \"%s\" and \"%s\"", src, dst);
488       *route = e_route->generic_route.link_list;
489     }
490     if (latency) {
491       *latency = common_father->get_latency(common_father, src, dst, e_route);
492       xbt_assert(*latency >= 0.0,
493                  "latency error on route between \"%s\" and \"%s\"", src, dst);
494     }
495     if (e_route) {
496       xbt_free(e_route->src_gateway);
497       xbt_free(e_route->dst_gateway);
498       xbt_free(e_route);
499     }
500
501   } else {                      /* SURF_ROUTING_RECURSIVE */
502
503     route_extended_t e_route_bypass = NULL;
504     if (common_father->get_bypass_route)
505       e_route_bypass = common_father->get_bypass_route(common_father, src, dst);
506
507     xbt_assert(!latency || !e_route_bypass,
508                "Bypass cannot work yet with get_latency");
509
510     route_extended_t e_route_cnt = e_route_bypass
511         ? e_route_bypass : common_father->get_route(common_father,
512                                                     src_father->name,
513                                                     dst_father->name);
514
515     xbt_assert(e_route_cnt, "no route between \"%s\" and \"%s\"",
516                src_father->name, dst_father->name);
517
518     xbt_assert((e_route_cnt->src_gateway == NULL) ==
519                (e_route_cnt->dst_gateway == NULL),
520                "bad gateway for route between \"%s\" and \"%s\"", src, dst);
521
522     if (route) {
523       *route = xbt_dynar_new(global_routing->size_of_link, NULL);
524     }
525     if (latency) {
526       *latency = common_father->get_latency(common_father,
527                                             src_father->name, dst_father->name,
528                                             e_route_cnt);
529       xbt_assert(*latency >= 0.0,
530                  "latency error on route between \"%s\" and \"%s\"",
531                  src_father->name, dst_father->name);
532     }
533
534     void *link;
535     unsigned int cpt;
536
537     if (strcmp(src, e_route_cnt->src_gateway)) {
538       double latency_src;
539       xbt_dynar_t route_src;
540
541       _get_route_latency(src, e_route_cnt->src_gateway,
542                          (route ? &route_src : NULL),
543                          (latency ? &latency_src : NULL));
544       if (route) {
545         xbt_assert(route_src, "no route between \"%s\" and \"%s\"",
546                    src, e_route_cnt->src_gateway);
547         xbt_dynar_foreach(route_src, cpt, link) {
548           xbt_dynar_push(*route, &link);
549         }
550         xbt_dynar_free(&route_src);
551       }
552       if (latency) {
553         xbt_assert(latency_src >= 0.0,
554                    "latency error on route between \"%s\" and \"%s\"",
555                    src, e_route_cnt->src_gateway);
556         *latency += latency_src;
557       }
558     }
559
560     if (route) {
561       xbt_dynar_foreach(e_route_cnt->generic_route.link_list, cpt, link) {
562         xbt_dynar_push(*route, &link);
563       }
564     }
565
566     if (strcmp(e_route_cnt->dst_gateway, dst)) {
567       double latency_dst;
568       xbt_dynar_t route_dst;
569
570       _get_route_latency(e_route_cnt->dst_gateway, dst,
571                          (route ? &route_dst : NULL),
572                          (latency ? &latency_dst : NULL));
573       if (route) {
574         xbt_assert(route_dst, "no route between \"%s\" and \"%s\"",
575                    e_route_cnt->dst_gateway, dst);
576         xbt_dynar_foreach(route_dst, cpt, link) {
577           xbt_dynar_push(*route, &link);
578         }
579         xbt_dynar_free(&route_dst);
580       }
581       if (latency) {
582         xbt_assert(latency_dst >= 0.0,
583                    "latency error on route between \"%s\" and \"%s\"",
584                    e_route_cnt->dst_gateway, dst);
585         *latency += latency_dst;
586       }
587     }
588
589     generic_free_extended_route(e_route_cnt);
590   }
591 }
592
593 /**
594  * \brief Generic function for get_route, get_route_no_cleanup, and get_latency
595  */
596 static void get_route_latency(const char *src, const char *dst,
597                               xbt_dynar_t * route, double *latency, int cleanup)
598 {
599   _get_route_latency(src, dst, route, latency);
600   xbt_assert(!route || *route, "no route between \"%s\" and \"%s\"", src, dst);
601   xbt_assert(!latency || *latency >= 0.0,
602              "latency error on route between \"%s\" and \"%s\"", src, dst);
603   if (route) {
604     xbt_dynar_free(&global_routing->last_route);
605     global_routing->last_route = cleanup ? *route : NULL;
606   }
607 }
608
609 /**
610  * \brief Generic method: find a route between hosts
611  *
612  * \param src the source host name 
613  * \param dst the destination host name
614  * 
615  * walk through the routing components tree and find a route between hosts
616  * by calling the differents "get_route" functions in each routing component.
617  * No need to free the returned dynar. It will be freed at the next call.
618  */
619 static xbt_dynar_t get_route(const char *src, const char *dst)
620 {
621   xbt_dynar_t route = NULL;
622   get_route_latency(src, dst, &route, NULL, 1);
623   return route;
624 }
625
626 /**
627  * \brief Generic method: find a route between hosts
628  *
629  * \param src the source host name
630  * \param dst the destination host name
631  *
632  * same as get_route, but return NULL if any exception is raised.
633  */
634 static xbt_dynar_t get_route_or_null(const char *src, const char *dst)
635 {
636   xbt_dynar_t route = NULL;
637   xbt_ex_t exception;
638   TRY {
639     get_route_latency(src, dst, &route, NULL, 1);
640   } CATCH(exception) {
641     xbt_ex_free(exception);
642     return NULL;
643   }
644   return route;
645 }
646
647 /**
648  * \brief Generic method: find a route between hosts
649  *
650  * \param src the source host name
651  * \param dst the destination host name
652  *
653  * walk through the routing components tree and find a route between hosts
654  * by calling the differents "get_route" functions in each routing component.
655  * Leaves the caller the responsability to clean the returned dynar.
656  */
657 static xbt_dynar_t get_route_no_cleanup(const char *src, const char *dst)
658 {
659   xbt_dynar_t route = NULL;
660   get_route_latency(src, dst, &route, NULL, 0);
661   return route;
662 }
663
664 /*Get Latency*/
665 static double get_latency(const char *src, const char *dst)
666 {
667   double latency = -1.0;
668   get_route_latency(src, dst, NULL, &latency, 0);
669   return latency;
670 }
671
672 /**
673  * \brief Recursive function for finalize
674  *
675  * \param rc the source host name 
676  * 
677  * This fuction is call by "finalize". It allow to finalize the 
678  * AS or routing components. It delete all the structures.
679  */
680 static void _finalize(AS_t rc)
681 {
682   if (rc) {
683     xbt_dict_cursor_t cursor = NULL;
684     char *key;
685     AS_t elem;
686     xbt_dict_foreach(rc->routing_sons, cursor, key, elem) {
687       _finalize(elem);
688     }
689     xbt_dict_t tmp_sons = rc->routing_sons;
690     char *tmp_name = rc->name;
691     xbt_dict_free(&tmp_sons);
692     xbt_free(tmp_name);
693     xbt_assert(rc->finalize, "no defined method \"finalize\" in \"%s\"",
694                current_routing->name);
695     (*(rc->finalize)) (rc);
696   }
697 }
698
699 /**
700  * \brief Generic method: delete all the routing structures
701  * 
702  * walk through the routing components tree and delete the structures
703  * by calling the different "finalize" functions in each routing component
704  */
705 static void finalize(void)
706 {
707   /* delete recursively all the tree */
708   _finalize(global_routing->root);
709   /* delete last_route */
710   xbt_dynar_free(&(global_routing->last_route));
711   /* delete global routing structure */
712   xbt_free(global_routing);
713 }
714
715 static xbt_dynar_t recursive_get_onelink_routes(AS_t rc)
716 {
717   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
718
719   //adding my one link routes
720   unsigned int cpt;
721   void *link;
722   xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
723   if (onelink_mine) {
724     xbt_dynar_foreach(onelink_mine, cpt, link) {
725       xbt_dynar_push(ret, &link);
726     }
727   }
728   //recursing
729   char *key;
730   xbt_dict_cursor_t cursor = NULL;
731   AS_t rc_child;
732   xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
733     xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
734     if (onelink_child) {
735       xbt_dynar_foreach(onelink_child, cpt, link) {
736         xbt_dynar_push(ret, &link);
737       }
738     }
739   }
740   return ret;
741 }
742
743 static xbt_dynar_t get_onelink_routes(void)
744 {
745   return recursive_get_onelink_routes(global_routing->root);
746 }
747
748 e_surf_network_element_type_t get_network_element_type(const char *name)
749 {
750   network_element_info_t rc = NULL;
751
752   rc = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
753   if (rc)
754     return rc->rc_type;
755
756   rc = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
757   if (rc)
758     return rc->rc_type;
759
760   return SURF_NETWORK_ELEMENT_NULL;
761 }
762
763 /**
764  * \brief Generic method: create the global routing schema
765  * 
766  * Make a global routing structure and set all the parsing functions.
767  */
768 void routing_model_create(size_t size_of_links, void *loopback)
769 {
770   /* config the uniq global routing */
771   global_routing = xbt_new0(s_routing_global_t, 1);
772   global_routing->root = NULL;
773   global_routing->get_route = get_route;
774   global_routing->get_route_or_null = get_route_or_null;
775   global_routing->get_latency = get_latency;
776   global_routing->get_route_no_cleanup = get_route_no_cleanup;
777   global_routing->get_onelink_routes = get_onelink_routes;
778   global_routing->get_route_latency = get_route_latency;
779   global_routing->get_network_element_type = get_network_element_type;
780   global_routing->finalize = finalize;
781   global_routing->loopback = loopback;
782   global_routing->size_of_link = size_of_links;
783   global_routing->last_route = NULL;
784   /* no current routing at moment */
785   current_routing = NULL;
786 }
787
788
789 /* ************************************************** */
790 /* ********** PATERN FOR NEW ROUTING **************** */
791
792 /* The minimal configuration of a new routing model need the next functions,
793  * also you need to set at the start of the file, the new model in the model
794  * list. Remember keep the null ending of the list.
795  */
796 /*** Routing model structure ***/
797 // typedef struct {
798 //   s_routing_component_t generic_routing;
799 //   /* things that your routing model need */
800 // } s_routing_component_NEW_t,*routing_component_NEW_t;
801
802 /*** Parse routing model functions ***/
803 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
804 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
805 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
806 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
807 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
808
809 /*** Business methods ***/
810 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
811 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
812 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
813
814 /*** Creation routing model functions ***/
815 // static void* model_NEW_create(void) {
816 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
817 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
818 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
819 //   new_component->generic_routing.set_route = model_NEW_set_route;
820 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
821 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
822 //   new_component->generic_routing.get_route = NEW_get_route;
823 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
824 //   new_component->generic_routing.finalize = NEW_finalize;
825 //   /* initialization of internal structures */
826 //   return new_component;
827 // } /* mandatory */
828 // static void  model_NEW_load(void) {}   /* mandatory */
829 // static void  model_NEW_unload(void) {} /* mandatory */
830 // static void  model_NEW_end(void) {}    /* mandatory */
831
832 /* ************************************************************************** */
833 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
834
835
836 static void routing_parse_cluster(void)
837 {
838   char *host_id, *groups, *link_id = NULL;
839
840   s_sg_platf_host_cbarg_t host;
841   s_sg_platf_link_cbarg_t link;
842
843   if (strcmp(struct_cluster->availability_trace, "")
844       || strcmp(struct_cluster->state_trace, "")) {
845     if (xbt_dict_size(patterns) == 0)
846       patterns = xbt_dict_new();
847     xbt_dict_set(patterns, "id", xbt_strdup(struct_cluster->id), free);
848     xbt_dict_set(patterns, "prefix", xbt_strdup(struct_cluster->prefix), free);
849     xbt_dict_set(patterns, "suffix", xbt_strdup(struct_cluster->suffix), free);
850   }
851
852   unsigned int iter;
853   int start, end, i;
854   xbt_dynar_t radical_elements;
855   xbt_dynar_t radical_ends;
856
857   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", struct_cluster->id);
858   sg_platf_new_AS_begin(struct_cluster->id, "Cluster");
859
860   //Make all hosts
861   radical_elements = xbt_str_split(struct_cluster->radical, ",");
862   xbt_dynar_foreach(radical_elements, iter, groups) {
863     memset(&host, 0, sizeof(host));
864
865     radical_ends = xbt_str_split(groups, "-");
866     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
867
868     switch (xbt_dynar_length(radical_ends)) {
869     case 1:
870       end = start;
871       break;
872     case 2:
873       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
874       break;
875     default:
876       surf_parse_error("Malformed radical");
877       break;
878     }
879     for (i = start; i <= end; i++) {
880       host_id =
881           bprintf("%s%d%s", struct_cluster->prefix, i, struct_cluster->suffix);
882       link_id = bprintf("%s_link_%d", struct_cluster->id, i);
883
884       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id,
885                 struct_cluster->power);
886       host.id = host_id;
887       if (strcmp(struct_cluster->availability_trace, "")) {
888         xbt_dict_set(patterns, "radical", bprintf("%d", i), xbt_free);
889         char *tmp_availability_file =
890             xbt_strdup(struct_cluster->availability_trace);
891         xbt_str_varsubst(tmp_availability_file, patterns);
892         XBT_DEBUG("\tavailability_file=\"%s\"", tmp_availability_file);
893         host.power_trace = tmgr_trace_new(tmp_availability_file);
894         xbt_free(tmp_availability_file);
895       } else {
896         XBT_DEBUG("\tavailability_file=\"\"");
897       }
898       if (strcmp(struct_cluster->state_trace, "")) {
899         char *tmp_state_file = xbt_strdup(struct_cluster->state_trace);
900         xbt_str_varsubst(tmp_state_file, patterns);
901         XBT_DEBUG("\tstate_file=\"%s\"", tmp_state_file);
902         host.state_trace = tmgr_trace_new(tmp_state_file);
903         xbt_free(tmp_state_file);
904       } else {
905         XBT_DEBUG("\tstate_file=\"\"");
906       }
907
908       host.power_peak = struct_cluster->power;
909       host.power_scale = 1.0;
910       host.core_amount = struct_cluster->core_amount;
911       host.initial_state = SURF_RESOURCE_ON;
912       host.coord = "";
913       sg_platf_new_host(&host);
914       XBT_DEBUG("</host>");
915
916       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
917                 struct_cluster->bw, struct_cluster->lat);
918
919       memset(&link, 0, sizeof(link));
920       link.id = link_id;
921       link.bandwidth = struct_cluster->bw;
922       link.latency = struct_cluster->lat;
923       link.state = SURF_RESOURCE_ON;
924
925       switch (struct_cluster->sharing_policy) {
926       case A_surfxml_cluster_sharing_policy_SHARED:
927         link.policy = SURF_LINK_SHARED;
928         break;
929       case A_surfxml_cluster_sharing_policy_FULLDUPLEX:
930         link.policy = SURF_LINK_FULLDUPLEX;
931         break;
932       case A_surfxml_cluster_sharing_policy_FATPIPE:
933         link.policy = SURF_LINK_FATPIPE;
934         break;
935       default:
936         surf_parse_error(bprintf
937                          ("Invalid cluster sharing policy for cluster %s",
938                           struct_cluster->id));
939         break;
940       }
941       sg_platf_new_link(&link);
942
943       surf_parsing_link_up_down_t info =
944           xbt_new0(s_surf_parsing_link_up_down_t, 1);
945       if (link.policy == SURF_LINK_FULLDUPLEX) {
946         char *tmp_link = bprintf("%s_UP", link_id);
947         info->link_up =
948             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
949         free(tmp_link);
950         tmp_link = bprintf("%s_DOWN", link_id);
951         info->link_down =
952             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
953         free(tmp_link);
954       } else {
955         info->link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
956         info->link_down = info->link_up;
957       }
958       surf_routing_cluster_add_link(host_id, info);
959
960       xbt_free(link_id);
961       xbt_free(host_id);
962     }
963
964     xbt_dynar_free(&radical_ends);
965   }
966   xbt_dynar_free(&radical_elements);
967
968   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written, and it's very useful to connect clusters together
969   XBT_DEBUG(" ");
970   XBT_DEBUG("<router id=\"%s\"/>", struct_cluster->router_id);
971   s_sg_platf_router_cbarg_t router;
972   char *newid = NULL;
973   memset(&router, 0, sizeof(router));
974   router.id = struct_cluster->router_id;
975   router.coord = "";
976   if (!router.id || !strcmp(router.id, ""))
977     router.id = newid =
978         bprintf("%s%s_router%s", struct_cluster->prefix, struct_cluster->id,
979                 struct_cluster->suffix);
980   sg_platf_new_router(&router);
981   free(newid);
982
983   //Make the backbone
984   if ((struct_cluster->bb_bw != 0) && (struct_cluster->bb_lat != 0)) {
985     char *link_backbone = bprintf("%s_backbone", struct_cluster->id);
986     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
987               struct_cluster->bb_bw, struct_cluster->bb_lat);
988
989     memset(&link, 0, sizeof(link));
990     link.id = link_backbone;
991     link.bandwidth = struct_cluster->bb_bw;
992     link.latency = struct_cluster->bb_lat;
993     link.state = SURF_RESOURCE_ON;
994
995     switch (struct_cluster->bb_sharing_policy) {
996     case A_surfxml_cluster_bb_sharing_policy_FATPIPE:
997       link.policy = SURF_LINK_FATPIPE;
998       break;
999     case A_surfxml_cluster_bb_sharing_policy_SHARED:
1000       link.policy = SURF_LINK_SHARED;
1001       break;
1002     default:
1003       surf_parse_error(bprintf
1004                        ("Invalid bb sharing policy in cluster %s",
1005                         struct_cluster->id));
1006       break;
1007     }
1008
1009     sg_platf_new_link(&link);
1010
1011     surf_parsing_link_up_down_t info =
1012         xbt_new0(s_surf_parsing_link_up_down_t, 1);
1013     info->link_up =
1014         xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL);
1015     info->link_down = info->link_up;
1016     surf_routing_cluster_add_link(struct_cluster->id, info);
1017
1018     free(link_backbone);
1019   }
1020
1021   XBT_DEBUG(" ");
1022
1023   char *new_suffix = xbt_strdup("");
1024
1025   radical_elements = xbt_str_split(struct_cluster->suffix, ".");
1026   xbt_dynar_foreach(radical_elements, iter, groups) {
1027     if (strcmp(groups, "")) {
1028       char *old_suffix = new_suffix;
1029       new_suffix = bprintf("%s\\.%s", old_suffix, groups);
1030       free(old_suffix);
1031     }
1032   }
1033
1034   xbt_dynar_free(&radical_elements);
1035   xbt_free(new_suffix);
1036
1037   if (strcmp(struct_cluster->availability_trace, "")
1038       || strcmp(struct_cluster->state_trace, ""))
1039     xbt_dict_free(&patterns);
1040
1041   XBT_DEBUG("</AS>");
1042   sg_platf_new_AS_end();
1043   XBT_DEBUG(" ");
1044 }
1045
1046 static void routing_parse_postparse(void)
1047 {
1048   xbt_dict_free(&random_value);
1049   xbt_dict_free(&patterns);
1050 }
1051
1052 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1053 {
1054   static int AX_ptr = 0;
1055   char *host_id = NULL;
1056   char *router_id, *link_router, *link_backbone, *link_id_up, *link_id_down;
1057
1058   static unsigned int surfxml_buffer_stack_stack_ptr = 1;
1059   static unsigned int surfxml_buffer_stack_stack[1024];
1060
1061   surfxml_buffer_stack_stack[0] = 0;
1062
1063   surfxml_bufferstack_push(1);
1064
1065   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Full\">", peer->id);
1066   sg_platf_new_AS_begin(peer->id, "Full");
1067
1068   XBT_DEBUG(" ");
1069   host_id = HOST_PEER(peer->id);
1070   router_id = ROUTER_PEER(peer->id);
1071   link_id_up = LINK_UP_PEER(peer->id);
1072   link_id_down = LINK_DOWN_PEER(peer->id);
1073
1074   link_router = bprintf("%s_link_router", peer->id);
1075   link_backbone = bprintf("%s_backbone", peer->id);
1076
1077   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1078   s_sg_platf_host_cbarg_t host;
1079   memset(&host, 0, sizeof(host));
1080   host.initial_state = SURF_RESOURCE_ON;
1081   host.id = host_id;
1082   host.power_peak = peer->power;
1083   host.power_scale = 1.0;
1084   host.power_trace = peer->availability_trace;
1085   host.state_trace = peer->state_trace;
1086   host.core_amount = 1;
1087   sg_platf_new_host(&host);
1088
1089
1090   XBT_DEBUG("<router id=\"%s\"\tcoordinates=\"%s\"/>", router_id, peer->coord);
1091   s_sg_platf_router_cbarg_t router;
1092   memset(&router, 0, sizeof(router));
1093   router.id = router_id;
1094   router.coord = peer->coord;
1095   sg_platf_new_router(&router);
1096
1097   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_up,
1098             peer->bw_in, peer->lat);
1099   s_sg_platf_link_cbarg_t link;
1100   memset(&link, 0, sizeof(link));
1101   link.state = SURF_RESOURCE_ON;
1102   link.policy = SURF_LINK_SHARED;
1103   link.id = link_id_up;
1104   link.bandwidth = peer->bw_in;
1105   link.latency = peer->lat;
1106   sg_platf_new_link(&link);
1107
1108   // FIXME: dealing with full duplex is not the role of this piece of code, I'd say [Mt]
1109   // Instead, it should be created fullduplex, and the models will do what's needed in this case
1110   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_down,
1111             peer->bw_out, peer->lat);
1112   link.id = link_id_down;
1113   sg_platf_new_link(&link);
1114
1115   XBT_DEBUG(" ");
1116
1117   // begin here
1118   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", host_id, router_id);
1119   XBT_DEBUG("symmetrical=\"NO\">");
1120   SURFXML_BUFFER_SET(route_src, host_id);
1121   SURFXML_BUFFER_SET(route_dst, router_id);
1122   A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1123   SURFXML_START_TAG(route);
1124
1125   XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_up);
1126   SURFXML_BUFFER_SET(link_ctn_id, link_id_up);
1127   A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1128   SURFXML_START_TAG(link_ctn);
1129   SURFXML_END_TAG(link_ctn);
1130
1131   XBT_DEBUG("</route>");
1132   SURFXML_END_TAG(route);
1133
1134   //Opposite Route
1135   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", router_id, host_id);
1136   XBT_DEBUG("symmetrical=\"NO\">");
1137   SURFXML_BUFFER_SET(route_src, router_id);
1138   SURFXML_BUFFER_SET(route_dst, host_id);
1139   A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1140   SURFXML_START_TAG(route);
1141
1142   XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_down);
1143   SURFXML_BUFFER_SET(link_ctn_id, link_id_down);
1144   A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1145   SURFXML_START_TAG(link_ctn);
1146   SURFXML_END_TAG(link_ctn);
1147
1148   XBT_DEBUG("</route>");
1149   SURFXML_END_TAG(route);
1150
1151   XBT_DEBUG("</AS>");
1152   sg_platf_new_AS_end();
1153   XBT_DEBUG(" ");
1154
1155   //xbt_dynar_free(&tab_elements_num);
1156   free(host_id);
1157   free(router_id);
1158   free(link_router);
1159   free(link_backbone);
1160   free(link_id_up);
1161   free(link_id_down);
1162   surfxml_bufferstack_pop(1);
1163 }
1164
1165 static void routing_parse_Srandom(void)
1166 {
1167   double mean, std, min, max, seed;
1168   char *random_id = A_surfxml_random_id;
1169   char *random_radical = A_surfxml_random_radical;
1170   char *rd_name = NULL;
1171   char *rd_value;
1172   mean = surf_parse_get_double(A_surfxml_random_mean);
1173   std = surf_parse_get_double(A_surfxml_random_std_deviation);
1174   min = surf_parse_get_double(A_surfxml_random_min);
1175   max = surf_parse_get_double(A_surfxml_random_max);
1176   seed = surf_parse_get_double(A_surfxml_random_seed);
1177
1178   double res = 0;
1179   int i = 0;
1180   random_data_t random = xbt_new0(s_random_data_t, 1);
1181   char *tmpbuf;
1182
1183   xbt_dynar_t radical_elements;
1184   unsigned int iter;
1185   char *groups;
1186   int start, end;
1187   xbt_dynar_t radical_ends;
1188
1189   random->generator = A_surfxml_random_generator;
1190   random->seed = seed;
1191   random->min = min;
1192   random->max = max;
1193
1194   /* Check user stupidities */
1195   if (max < min)
1196     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1197   if (mean < min)
1198     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1199   if (mean > max)
1200     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1201
1202   /* normalize the mean and standard deviation before storing */
1203   random->mean = (mean - min) / (max - min);
1204   random->std = std / (max - min);
1205
1206   if (random->mean * (1 - random->mean) < random->std * random->std)
1207     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1208            random->mean, random->std);
1209
1210   XBT_DEBUG
1211       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1212        random_id, random->min, random->max, random->mean, random->std,
1213        random->generator, random->seed, random_radical);
1214
1215   if (xbt_dict_size(random_value) == 0)
1216     random_value = xbt_dict_new();
1217
1218   if (!strcmp(random_radical, "")) {
1219     res = random_generate(random);
1220     rd_value = bprintf("%f", res);
1221     xbt_dict_set(random_value, random_id, rd_value, free);
1222   } else {
1223     radical_elements = xbt_str_split(random_radical, ",");
1224     xbt_dynar_foreach(radical_elements, iter, groups) {
1225       radical_ends = xbt_str_split(groups, "-");
1226       switch (xbt_dynar_length(radical_ends)) {
1227       case 1:
1228         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1229                    "Custom Random '%s' already exists !", random_id);
1230         res = random_generate(random);
1231         tmpbuf =
1232             bprintf("%s%d", random_id,
1233                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1234         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), free);
1235         xbt_free(tmpbuf);
1236         break;
1237
1238       case 2:
1239         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1240         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1241         for (i = start; i <= end; i++) {
1242           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1243                      "Custom Random '%s' already exists !", bprintf("%s%d",
1244                                                                     random_id,
1245                                                                     i));
1246           res = random_generate(random);
1247           tmpbuf = bprintf("%s%d", random_id, i);
1248           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), free);
1249           xbt_free(tmpbuf);
1250         }
1251         break;
1252       default:
1253         XBT_INFO("Malformed radical");
1254         break;
1255       }
1256       res = random_generate(random);
1257       rd_name = bprintf("%s_router", random_id);
1258       rd_value = bprintf("%f", res);
1259       xbt_dict_set(random_value, rd_name, rd_value, free);
1260
1261       xbt_dynar_free(&radical_ends);
1262     }
1263     free(rd_name);
1264     xbt_dynar_free(&radical_elements);
1265   }
1266 }
1267
1268 void routing_register_callbacks()
1269 {
1270   sg_platf_host_add_cb(parse_S_host);
1271   sg_platf_router_add_cb(parse_S_router);
1272
1273   surfxml_add_callback(STag_surfxml_random_cb_list, &routing_parse_Srandom);
1274
1275   surfxml_add_callback(STag_surfxml_route_cb_list, &routing_parse_S_route);
1276   surfxml_add_callback(STag_surfxml_ASroute_cb_list, &routing_parse_S_ASroute);
1277   surfxml_add_callback(STag_surfxml_bypassRoute_cb_list,
1278                        &routing_parse_S_bypassRoute);
1279
1280   surfxml_add_callback(ETag_surfxml_link_ctn_cb_list, &routing_parse_link_ctn);
1281
1282   surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_parse_E_route);
1283   surfxml_add_callback(ETag_surfxml_ASroute_cb_list, &routing_parse_E_ASroute);
1284   surfxml_add_callback(ETag_surfxml_bypassRoute_cb_list,
1285                        &routing_parse_E_bypassRoute);
1286
1287   surfxml_add_callback(STag_surfxml_cluster_cb_list, &routing_parse_cluster);
1288
1289   sg_platf_peer_add_cb(routing_parse_peer);
1290   sg_platf_postparse_add_cb(routing_parse_postparse);
1291
1292 #ifdef HAVE_TRACING
1293   instr_routing_define_callbacks();
1294 #endif
1295 }