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Move the SURF model initialization from routing_parse to sg_platf
[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 routing_component_t current_routing = NULL;
41 model_type_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   name_route_extended_t route = xbt_new0(s_name_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   name_route_extended_t e_route = xbt_new0(s_name_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   routing_component_t new_routing;
298   model_type_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 = (routing_component_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 name of the element
387  *
388  * \param name the host name
389  *
390  */
391 static char *elements_As_name(const char *name)
392 {
393   routing_component_t as_comp;
394
395   /* (1) find the as where the host is located */
396   as_comp = ((network_element_info_t)
397              xbt_lib_get_or_null(host_lib, name,
398                                  ROUTING_HOST_LEVEL))->rc_component;
399   return as_comp->name;
400 }
401
402
403 /**
404  * \brief Get the AS father and the first elements of the chain
405  *
406  * \param src the source host name 
407  * \param dst the destination host name
408  * 
409  * Get the common father of the to processing units, and the first different 
410  * father in the chain
411  */
412 static void elements_father(const char *src, const char *dst,
413                             routing_component_t * res_father,
414                             routing_component_t * res_src,
415                             routing_component_t * res_dst)
416 {
417   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
418 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
419   routing_component_t src_as, dst_as;
420   routing_component_t path_src[ELEMENTS_FATHER_MAXDEPTH];
421   routing_component_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
422   int index_src = 0;
423   int index_dst = 0;
424   routing_component_t current;
425   routing_component_t current_src;
426   routing_component_t current_dst;
427   routing_component_t father;
428
429   /* (1) find the as where the src and dst are located */
430   network_element_info_t src_data = xbt_lib_get_or_null(host_lib, src,
431                                                         ROUTING_HOST_LEVEL);
432   network_element_info_t dst_data = xbt_lib_get_or_null(host_lib, dst,
433                                                         ROUTING_HOST_LEVEL);
434   if (!src_data)
435     src_data = xbt_lib_get_or_null(as_router_lib, src, ROUTING_ASR_LEVEL);
436   if (!dst_data)
437     dst_data = xbt_lib_get_or_null(as_router_lib, dst, ROUTING_ASR_LEVEL);
438   src_as = src_data->rc_component;
439   dst_as = dst_data->rc_component;
440
441   xbt_assert(src_as && dst_as,
442              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src, dst);
443
444   /* (2) find the path to the root routing component */
445   for (current = src_as; current != NULL; current = current->routing_father) {
446     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
447       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
448     path_src[index_src++] = current;
449   }
450   for (current = dst_as; current != NULL; current = current->routing_father) {
451     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
452       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
453     path_dst[index_dst++] = current;
454   }
455
456   /* (3) find the common father */
457   do {
458     current_src = path_src[--index_src];
459     current_dst = path_dst[--index_dst];
460   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
461
462   /* (4) they are not in the same routing component, make the path */
463   if (current_src == current_dst)
464     father = current_src;
465   else
466     father = path_src[index_src + 1];
467
468   /* (5) result generation */
469   *res_father = father;         /* first the common father of src and dst */
470   *res_src = current_src;       /* second the first different father of src */
471   *res_dst = current_dst;       /* three  the first different father of dst */
472
473 #undef ELEMENTS_FATHER_MAXDEPTH
474 }
475
476 /* Global Business methods */
477
478 /**
479  * \brief Recursive function for get_route_latency
480  *
481  * \param src the source host name 
482  * \param dst the destination host name
483  * \param *e_route the route where the links are stored
484  * \param *latency the latency, if needed
485  * 
486  * This function is called by "get_route" and "get_latency". It allows to walk
487  * recursively through the routing components tree.
488  */
489 static void _get_route_latency(const char *src, const char *dst,
490                                xbt_dynar_t * route, double *latency)
491 {
492   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src, dst);
493   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
494
495   routing_component_t common_father;
496   routing_component_t src_father;
497   routing_component_t dst_father;
498   elements_father(src, dst, &common_father, &src_father, &dst_father);
499
500   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
501
502     route_extended_t e_route = NULL;
503     if (route) {
504       e_route = common_father->get_route(common_father, src, dst);
505       xbt_assert(e_route, "no route between \"%s\" and \"%s\"", src, dst);
506       *route = e_route->generic_route.link_list;
507     }
508     if (latency) {
509       *latency = common_father->get_latency(common_father, src, dst, e_route);
510       xbt_assert(*latency >= 0.0,
511                  "latency error on route between \"%s\" and \"%s\"", src, dst);
512     }
513     if (e_route) {
514       xbt_free(e_route->src_gateway);
515       xbt_free(e_route->dst_gateway);
516       xbt_free(e_route);
517     }
518
519   } else {                      /* SURF_ROUTING_RECURSIVE */
520
521     route_extended_t e_route_bypass = NULL;
522     if (common_father->get_bypass_route)
523       e_route_bypass = common_father->get_bypass_route(common_father, src, dst);
524
525     xbt_assert(!latency || !e_route_bypass,
526                "Bypass cannot work yet with get_latency");
527
528     route_extended_t e_route_cnt = e_route_bypass
529         ? e_route_bypass : common_father->get_route(common_father,
530                                                     src_father->name,
531                                                     dst_father->name);
532
533     xbt_assert(e_route_cnt, "no route between \"%s\" and \"%s\"",
534                src_father->name, dst_father->name);
535
536     xbt_assert((e_route_cnt->src_gateway == NULL) ==
537                (e_route_cnt->dst_gateway == NULL),
538                "bad gateway for route between \"%s\" and \"%s\"", src, dst);
539
540     if (route) {
541       *route = xbt_dynar_new(global_routing->size_of_link, NULL);
542     }
543     if (latency) {
544       *latency = common_father->get_latency(common_father,
545                                             src_father->name, dst_father->name,
546                                             e_route_cnt);
547       xbt_assert(*latency >= 0.0,
548                  "latency error on route between \"%s\" and \"%s\"",
549                  src_father->name, dst_father->name);
550     }
551
552     void *link;
553     unsigned int cpt;
554
555     if (strcmp(src, e_route_cnt->src_gateway)) {
556       double latency_src;
557       xbt_dynar_t route_src;
558
559       _get_route_latency(src, e_route_cnt->src_gateway,
560                          (route ? &route_src : NULL),
561                          (latency ? &latency_src : NULL));
562       if (route) {
563         xbt_assert(route_src, "no route between \"%s\" and \"%s\"",
564                    src, e_route_cnt->src_gateway);
565         xbt_dynar_foreach(route_src, cpt, link) {
566           xbt_dynar_push(*route, &link);
567         }
568         xbt_dynar_free(&route_src);
569       }
570       if (latency) {
571         xbt_assert(latency_src >= 0.0,
572                    "latency error on route between \"%s\" and \"%s\"",
573                    src, e_route_cnt->src_gateway);
574         *latency += latency_src;
575       }
576     }
577
578     if (route) {
579       xbt_dynar_foreach(e_route_cnt->generic_route.link_list, cpt, link) {
580         xbt_dynar_push(*route, &link);
581       }
582     }
583
584     if (strcmp(e_route_cnt->dst_gateway, dst)) {
585       double latency_dst;
586       xbt_dynar_t route_dst;
587
588       _get_route_latency(e_route_cnt->dst_gateway, dst,
589                          (route ? &route_dst : NULL),
590                          (latency ? &latency_dst : NULL));
591       if (route) {
592         xbt_assert(route_dst, "no route between \"%s\" and \"%s\"",
593                    e_route_cnt->dst_gateway, dst);
594         xbt_dynar_foreach(route_dst, cpt, link) {
595           xbt_dynar_push(*route, &link);
596         }
597         xbt_dynar_free(&route_dst);
598       }
599       if (latency) {
600         xbt_assert(latency_dst >= 0.0,
601                    "latency error on route between \"%s\" and \"%s\"",
602                    e_route_cnt->dst_gateway, dst);
603         *latency += latency_dst;
604       }
605     }
606
607     generic_free_extended_route(e_route_cnt);
608   }
609 }
610
611 /**
612  * \brief Generic function for get_route, get_route_no_cleanup, and get_latency
613  */
614 static void get_route_latency(const char *src, const char *dst,
615                               xbt_dynar_t * route, double *latency, int cleanup)
616 {
617   _get_route_latency(src, dst, route, latency);
618   xbt_assert(!route || *route, "no route between \"%s\" and \"%s\"", src, dst);
619   xbt_assert(!latency || *latency >= 0.0,
620              "latency error on route between \"%s\" and \"%s\"", src, dst);
621   if (route) {
622     xbt_dynar_free(&global_routing->last_route);
623     global_routing->last_route = cleanup ? *route : NULL;
624   }
625 }
626
627 /**
628  * \brief Generic method: find a route between hosts
629  *
630  * \param src the source host name 
631  * \param dst the destination host name
632  * 
633  * walk through the routing components tree and find a route between hosts
634  * by calling the differents "get_route" functions in each routing component.
635  * No need to free the returned dynar. It will be freed at the next call.
636  */
637 static xbt_dynar_t get_route(const char *src, const char *dst)
638 {
639   xbt_dynar_t route = NULL;
640   get_route_latency(src, dst, &route, NULL, 1);
641   return route;
642 }
643
644 /**
645  * \brief Generic method: find a route between hosts
646  *
647  * \param src the source host name
648  * \param dst the destination host name
649  *
650  * same as get_route, but return NULL if any exception is raised.
651  */
652 static xbt_dynar_t get_route_or_null(const char *src, const char *dst)
653 {
654   xbt_dynar_t route = NULL;
655   xbt_ex_t exception;
656   TRY {
657     get_route_latency(src, dst, &route, NULL, 1);
658   } CATCH(exception) {
659     xbt_ex_free(exception);
660     return NULL;
661   }
662   return route;
663 }
664
665 /**
666  * \brief Generic method: find a route between hosts
667  *
668  * \param src the source host name
669  * \param dst the destination host name
670  *
671  * walk through the routing components tree and find a route between hosts
672  * by calling the differents "get_route" functions in each routing component.
673  * Leaves the caller the responsability to clean the returned dynar.
674  */
675 static xbt_dynar_t get_route_no_cleanup(const char *src, const char *dst)
676 {
677   xbt_dynar_t route = NULL;
678   get_route_latency(src, dst, &route, NULL, 0);
679   return route;
680 }
681
682 /*Get Latency*/
683 static double get_latency(const char *src, const char *dst)
684 {
685   double latency = -1.0;
686   get_route_latency(src, dst, NULL, &latency, 0);
687   return latency;
688 }
689
690 /**
691  * \brief Recursive function for finalize
692  *
693  * \param rc the source host name 
694  * 
695  * This fuction is call by "finalize". It allow to finalize the 
696  * AS or routing components. It delete all the structures.
697  */
698 static void _finalize(routing_component_t rc)
699 {
700   if (rc) {
701     xbt_dict_cursor_t cursor = NULL;
702     char *key;
703     routing_component_t elem;
704     xbt_dict_foreach(rc->routing_sons, cursor, key, elem) {
705       _finalize(elem);
706     }
707     xbt_dict_t tmp_sons = rc->routing_sons;
708     char *tmp_name = rc->name;
709     xbt_dict_free(&tmp_sons);
710     xbt_free(tmp_name);
711     xbt_assert(rc->finalize, "no defined method \"finalize\" in \"%s\"",
712                current_routing->name);
713     (*(rc->finalize)) (rc);
714   }
715 }
716
717 /**
718  * \brief Generic method: delete all the routing structures
719  * 
720  * walk through the routing components tree and delete the structures
721  * by calling the different "finalize" functions in each routing component
722  */
723 static void finalize(void)
724 {
725   /* delete recursively all the tree */
726   _finalize(global_routing->root);
727   /* delete last_route */
728   xbt_dynar_free(&(global_routing->last_route));
729   /* delete global routing structure */
730   xbt_free(global_routing);
731 }
732
733 static xbt_dynar_t recursive_get_onelink_routes(routing_component_t rc)
734 {
735   xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
736
737   //adding my one link routes
738   unsigned int cpt;
739   void *link;
740   xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
741   if (onelink_mine) {
742     xbt_dynar_foreach(onelink_mine, cpt, link) {
743       xbt_dynar_push(ret, &link);
744     }
745   }
746   //recursing
747   char *key;
748   xbt_dict_cursor_t cursor = NULL;
749   routing_component_t rc_child;
750   xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
751     xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
752     if (onelink_child) {
753       xbt_dynar_foreach(onelink_child, cpt, link) {
754         xbt_dynar_push(ret, &link);
755       }
756     }
757   }
758   return ret;
759 }
760
761 static xbt_dynar_t get_onelink_routes(void)
762 {
763   return recursive_get_onelink_routes(global_routing->root);
764 }
765
766 e_surf_network_element_type_t get_network_element_type(const char *name)
767 {
768   network_element_info_t rc = NULL;
769
770   rc = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
771   if (rc)
772     return rc->rc_type;
773
774   rc = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
775   if (rc)
776     return rc->rc_type;
777
778   return SURF_NETWORK_ELEMENT_NULL;
779 }
780
781 /**
782  * \brief Generic method: create the global routing schema
783  * 
784  * Make a global routing structure and set all the parsing functions.
785  */
786 void routing_model_create(size_t size_of_links, void *loopback)
787 {
788   /* config the uniq global routing */
789   global_routing = xbt_new0(s_routing_global_t, 1);
790   global_routing->root = NULL;
791   global_routing->get_route = get_route;
792   global_routing->get_route_or_null = get_route_or_null;
793   global_routing->get_latency = get_latency;
794   global_routing->get_route_no_cleanup = get_route_no_cleanup;
795   global_routing->get_onelink_routes = get_onelink_routes;
796   global_routing->get_route_latency = get_route_latency;
797   global_routing->get_network_element_type = get_network_element_type;
798   global_routing->finalize = finalize;
799   global_routing->loopback = loopback;
800   global_routing->size_of_link = size_of_links;
801   global_routing->last_route = NULL;
802   /* no current routing at moment */
803   current_routing = NULL;
804 }
805
806
807 /* ************************************************** */
808 /* ********** PATERN FOR NEW ROUTING **************** */
809
810 /* The minimal configuration of a new routing model need the next functions,
811  * also you need to set at the start of the file, the new model in the model
812  * list. Remember keep the null ending of the list.
813  */
814 /*** Routing model structure ***/
815 // typedef struct {
816 //   s_routing_component_t generic_routing;
817 //   /* things that your routing model need */
818 // } s_routing_component_NEW_t,*routing_component_NEW_t;
819
820 /*** Parse routing model functions ***/
821 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
822 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
823 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
824 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
825 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
826
827 /*** Business methods ***/
828 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
829 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
830 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
831
832 /*** Creation routing model functions ***/
833 // static void* model_NEW_create(void) {
834 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
835 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
836 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
837 //   new_component->generic_routing.set_route = model_NEW_set_route;
838 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
839 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
840 //   new_component->generic_routing.get_route = NEW_get_route;
841 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
842 //   new_component->generic_routing.finalize = NEW_finalize;
843 //   /* initialization of internal structures */
844 //   return new_component;
845 // } /* mandatory */
846 // static void  model_NEW_load(void) {}   /* mandatory */
847 // static void  model_NEW_unload(void) {} /* mandatory */
848 // static void  model_NEW_end(void) {}    /* mandatory */
849
850 /* ************************************************************************** */
851 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
852
853
854 static void routing_parse_cluster(void)
855 {
856   char *host_id, *groups, *link_id = NULL;
857
858   s_sg_platf_host_cbarg_t host;
859   s_sg_platf_link_cbarg_t link;
860
861   if (strcmp(struct_cluster->availability_trace, "")
862       || strcmp(struct_cluster->state_trace, "")) {
863     if (xbt_dict_size(patterns) == 0)
864       patterns = xbt_dict_new();
865     xbt_dict_set(patterns, "id", xbt_strdup(struct_cluster->id), free);
866     xbt_dict_set(patterns, "prefix", xbt_strdup(struct_cluster->prefix), free);
867     xbt_dict_set(patterns, "suffix", xbt_strdup(struct_cluster->suffix), free);
868   }
869
870   unsigned int iter;
871   int start, end, i;
872   xbt_dynar_t radical_elements;
873   xbt_dynar_t radical_ends;
874
875   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", struct_cluster->id);
876   sg_platf_new_AS_begin(struct_cluster->id, "Cluster");
877
878   //Make all hosts
879   radical_elements = xbt_str_split(struct_cluster->radical, ",");
880   xbt_dynar_foreach(radical_elements, iter, groups) {
881     memset(&host, 0, sizeof(host));
882
883     radical_ends = xbt_str_split(groups, "-");
884     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
885
886     switch (xbt_dynar_length(radical_ends)) {
887     case 1:
888       end = start;
889       break;
890     case 2:
891       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
892       break;
893     default:
894       surf_parse_error("Malformed radical");
895       break;
896     }
897     for (i = start; i <= end; i++) {
898       host_id =
899           bprintf("%s%d%s", struct_cluster->prefix, i, struct_cluster->suffix);
900       link_id = bprintf("%s_link_%d", struct_cluster->id, i);
901
902       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id,
903                 struct_cluster->power);
904       host.id = host_id;
905       if (strcmp(struct_cluster->availability_trace, "")) {
906         xbt_dict_set(patterns, "radical", bprintf("%d", i), xbt_free);
907         char *tmp_availability_file =
908             xbt_strdup(struct_cluster->availability_trace);
909         xbt_str_varsubst(tmp_availability_file, patterns);
910         XBT_DEBUG("\tavailability_file=\"%s\"", tmp_availability_file);
911         host.power_trace = tmgr_trace_new(tmp_availability_file);
912         xbt_free(tmp_availability_file);
913       } else {
914         XBT_DEBUG("\tavailability_file=\"\"");
915       }
916       if (strcmp(struct_cluster->state_trace, "")) {
917         char *tmp_state_file = xbt_strdup(struct_cluster->state_trace);
918         xbt_str_varsubst(tmp_state_file, patterns);
919         XBT_DEBUG("\tstate_file=\"%s\"", tmp_state_file);
920         host.state_trace = tmgr_trace_new(tmp_state_file);
921         xbt_free(tmp_state_file);
922       } else {
923         XBT_DEBUG("\tstate_file=\"\"");
924       }
925
926       host.power_peak = struct_cluster->power;
927       host.power_scale = 1.0;
928       host.core_amount = struct_cluster->core_amount;
929       host.initial_state = SURF_RESOURCE_ON;
930       host.coord = "";
931       sg_platf_new_host(&host);
932       XBT_DEBUG("</host>");
933
934       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
935                 struct_cluster->bw, struct_cluster->lat);
936
937       memset(&link, 0, sizeof(link));
938       link.id = link_id;
939       link.bandwidth = struct_cluster->bw;
940       link.latency = struct_cluster->lat;
941       link.state = SURF_RESOURCE_ON;
942
943       switch (struct_cluster->sharing_policy) {
944       case A_surfxml_cluster_sharing_policy_SHARED:
945         link.policy = SURF_LINK_SHARED;
946         break;
947       case A_surfxml_cluster_sharing_policy_FULLDUPLEX:
948         link.policy = SURF_LINK_FULLDUPLEX;
949         break;
950       case A_surfxml_cluster_sharing_policy_FATPIPE:
951         link.policy = SURF_LINK_FATPIPE;
952         break;
953       default:
954         surf_parse_error(bprintf
955                          ("Invalid cluster sharing policy for cluster %s",
956                           struct_cluster->id));
957         break;
958       }
959       sg_platf_new_link(&link);
960
961       surf_parsing_link_up_down_t info =
962           xbt_new0(s_surf_parsing_link_up_down_t, 1);
963       if (link.policy == SURF_LINK_FULLDUPLEX) {
964         char *tmp_link = bprintf("%s_UP", link_id);
965         info->link_up =
966             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
967         free(tmp_link);
968         tmp_link = bprintf("%s_DOWN", link_id);
969         info->link_down =
970             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
971         free(tmp_link);
972       } else {
973         info->link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
974         info->link_down = info->link_up;
975       }
976       surf_routing_cluster_add_link(host_id, info);
977
978       xbt_free(link_id);
979       xbt_free(host_id);
980     }
981
982     xbt_dynar_free(&radical_ends);
983   }
984   xbt_dynar_free(&radical_elements);
985
986   // 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
987   XBT_DEBUG(" ");
988   XBT_DEBUG("<router id=\"%s\"/>", struct_cluster->router_id);
989   s_sg_platf_router_cbarg_t router;
990   char *newid = NULL;
991   memset(&router, 0, sizeof(router));
992   router.id = struct_cluster->router_id;
993   router.coord = "";
994   if (!router.id || !strcmp(router.id, ""))
995     router.id = newid =
996         bprintf("%s%s_router%s", struct_cluster->prefix, struct_cluster->id,
997                 struct_cluster->suffix);
998   sg_platf_new_router(&router);
999   free(newid);
1000
1001   //Make the backbone
1002   if ((struct_cluster->bb_bw != 0) && (struct_cluster->bb_lat != 0)) {
1003     char *link_backbone = bprintf("%s_backbone", struct_cluster->id);
1004     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
1005               struct_cluster->bb_bw, struct_cluster->bb_lat);
1006
1007     memset(&link, 0, sizeof(link));
1008     link.id = link_backbone;
1009     link.bandwidth = struct_cluster->bb_bw;
1010     link.latency = struct_cluster->bb_lat;
1011     link.state = SURF_RESOURCE_ON;
1012
1013     switch (struct_cluster->bb_sharing_policy) {
1014     case A_surfxml_cluster_bb_sharing_policy_FATPIPE:
1015       link.policy = SURF_LINK_FATPIPE;
1016       break;
1017     case A_surfxml_cluster_bb_sharing_policy_SHARED:
1018       link.policy = SURF_LINK_SHARED;
1019       break;
1020     default:
1021       surf_parse_error(bprintf
1022                        ("Invalid bb sharing policy in cluster %s",
1023                         struct_cluster->id));
1024       break;
1025     }
1026
1027     sg_platf_new_link(&link);
1028
1029     surf_parsing_link_up_down_t info =
1030         xbt_new0(s_surf_parsing_link_up_down_t, 1);
1031     info->link_up =
1032         xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL);
1033     info->link_down = info->link_up;
1034     surf_routing_cluster_add_link(struct_cluster->id, info);
1035
1036     free(link_backbone);
1037   }
1038
1039   XBT_DEBUG(" ");
1040
1041   char *new_suffix = xbt_strdup("");
1042
1043   radical_elements = xbt_str_split(struct_cluster->suffix, ".");
1044   xbt_dynar_foreach(radical_elements, iter, groups) {
1045     if (strcmp(groups, "")) {
1046       char *old_suffix = new_suffix;
1047       new_suffix = bprintf("%s\\.%s", old_suffix, groups);
1048       free(old_suffix);
1049     }
1050   }
1051
1052   xbt_dynar_free(&radical_elements);
1053   xbt_free(new_suffix);
1054
1055   if (strcmp(struct_cluster->availability_trace, "")
1056       || strcmp(struct_cluster->state_trace, ""))
1057     xbt_dict_free(&patterns);
1058
1059   XBT_DEBUG("</AS>");
1060   sg_platf_new_AS_end();
1061   XBT_DEBUG(" ");
1062 }
1063
1064 /*
1065  * This function take a string and replace parameters from patterns dict.
1066  * It returns the new value.
1067  */
1068 static char *replace_random_parameter(char *string)
1069 {
1070   char *test_string = NULL;
1071
1072   if (xbt_dict_size(random_value) == 0)
1073     return string;
1074
1075   string = xbt_str_varsubst(string, patterns);  // for patterns of cluster
1076   test_string = bprintf("${%s}", string);
1077   test_string = xbt_str_varsubst(test_string, random_value);    //Add ${xxxxx} for random Generator
1078
1079   if (strcmp(test_string, "")) {        //if not empty, keep this value.
1080     xbt_free(string);
1081     string = test_string;
1082   }                             //In other case take old value (without ${})
1083   else
1084     free(test_string);
1085   return string;
1086 }
1087
1088 static void routing_parse_postparse(void)
1089 {
1090   xbt_dict_free(&random_value);
1091   xbt_dict_free(&patterns);
1092 }
1093
1094 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1095 {
1096   static int AX_ptr = 0;
1097   char *host_id = NULL;
1098   char *router_id, *link_router, *link_backbone, *link_id_up, *link_id_down;
1099
1100   static unsigned int surfxml_buffer_stack_stack_ptr = 1;
1101   static unsigned int surfxml_buffer_stack_stack[1024];
1102
1103   surfxml_buffer_stack_stack[0] = 0;
1104
1105   surfxml_bufferstack_push(1);
1106
1107   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Full\">", peer->id);
1108   sg_platf_new_AS_begin(peer->id, "Full");
1109
1110   XBT_DEBUG(" ");
1111   host_id = HOST_PEER(peer->id);
1112   router_id = ROUTER_PEER(peer->id);
1113   link_id_up = LINK_UP_PEER(peer->id);
1114   link_id_down = LINK_DOWN_PEER(peer->id);
1115
1116   link_router = bprintf("%s_link_router", peer->id);
1117   link_backbone = bprintf("%s_backbone", peer->id);
1118
1119   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1120   s_sg_platf_host_cbarg_t host;
1121   memset(&host, 0, sizeof(host));
1122   host.initial_state = SURF_RESOURCE_ON;
1123   host.id = host_id;
1124   host.power_peak = peer->power;
1125   host.power_scale = 1.0;
1126   host.power_trace = peer->availability_trace;
1127   host.state_trace = peer->state_trace;
1128   host.core_amount = 1;
1129   sg_platf_new_host(&host);
1130
1131
1132   XBT_DEBUG("<router id=\"%s\"\tcoordinates=\"%s\"/>", router_id, peer->coord);
1133   s_sg_platf_router_cbarg_t router;
1134   memset(&router, 0, sizeof(router));
1135   router.id = router_id;
1136   router.coord = peer->coord;
1137   sg_platf_new_router(&router);
1138
1139   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_up,
1140             peer->bw_in, peer->lat);
1141   s_sg_platf_link_cbarg_t link;
1142   memset(&link, 0, sizeof(link));
1143   link.state = SURF_RESOURCE_ON;
1144   link.policy = SURF_LINK_SHARED;
1145   link.id = link_id_up;
1146   link.bandwidth = peer->bw_in;
1147   link.latency = peer->lat;
1148   sg_platf_new_link(&link);
1149
1150   // FIXME: dealing with full duplex is not the role of this piece of code, I'd say [Mt]
1151   // Instead, it should be created fullduplex, and the models will do what's needed in this case
1152   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_down,
1153             peer->bw_out, peer->lat);
1154   link.id = link_id_down;
1155   sg_platf_new_link(&link);
1156
1157   XBT_DEBUG(" ");
1158
1159   // begin here
1160   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", host_id, router_id);
1161   XBT_DEBUG("symmetrical=\"NO\">");
1162   SURFXML_BUFFER_SET(route_src, host_id);
1163   SURFXML_BUFFER_SET(route_dst, router_id);
1164   A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1165   SURFXML_START_TAG(route);
1166
1167   XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_up);
1168   SURFXML_BUFFER_SET(link_ctn_id, link_id_up);
1169   A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1170   SURFXML_START_TAG(link_ctn);
1171   SURFXML_END_TAG(link_ctn);
1172
1173   XBT_DEBUG("</route>");
1174   SURFXML_END_TAG(route);
1175
1176   //Opposite Route
1177   XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", router_id, host_id);
1178   XBT_DEBUG("symmetrical=\"NO\">");
1179   SURFXML_BUFFER_SET(route_src, router_id);
1180   SURFXML_BUFFER_SET(route_dst, host_id);
1181   A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1182   SURFXML_START_TAG(route);
1183
1184   XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_down);
1185   SURFXML_BUFFER_SET(link_ctn_id, link_id_down);
1186   A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1187   SURFXML_START_TAG(link_ctn);
1188   SURFXML_END_TAG(link_ctn);
1189
1190   XBT_DEBUG("</route>");
1191   SURFXML_END_TAG(route);
1192
1193   XBT_DEBUG("</AS>");
1194   sg_platf_new_AS_end();
1195   XBT_DEBUG(" ");
1196
1197   //xbt_dynar_free(&tab_elements_num);
1198   free(host_id);
1199   free(router_id);
1200   free(link_router);
1201   free(link_backbone);
1202   free(link_id_up);
1203   free(link_id_down);
1204   surfxml_bufferstack_pop(1);
1205 }
1206
1207 static void routing_parse_Srandom(void)
1208 {
1209   double mean, std, min, max, seed;
1210   char *random_id = A_surfxml_random_id;
1211   char *random_radical = A_surfxml_random_radical;
1212   char *rd_name = NULL;
1213   char *rd_value;
1214   mean = surf_parse_get_double(A_surfxml_random_mean);
1215   std = surf_parse_get_double(A_surfxml_random_std_deviation);
1216   min = surf_parse_get_double(A_surfxml_random_min);
1217   max = surf_parse_get_double(A_surfxml_random_max);
1218   seed = surf_parse_get_double(A_surfxml_random_seed);
1219
1220   double res = 0;
1221   int i = 0;
1222   random_data_t random = xbt_new0(s_random_data_t, 1);
1223   char *tmpbuf;
1224
1225   xbt_dynar_t radical_elements;
1226   unsigned int iter;
1227   char *groups;
1228   int start, end;
1229   xbt_dynar_t radical_ends;
1230
1231   random->generator = A_surfxml_random_generator;
1232   random->seed = seed;
1233   random->min = min;
1234   random->max = max;
1235
1236   /* Check user stupidities */
1237   if (max < min)
1238     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1239   if (mean < min)
1240     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1241   if (mean > max)
1242     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1243
1244   /* normalize the mean and standard deviation before storing */
1245   random->mean = (mean - min) / (max - min);
1246   random->std = std / (max - min);
1247
1248   if (random->mean * (1 - random->mean) < random->std * random->std)
1249     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1250            random->mean, random->std);
1251
1252   XBT_DEBUG
1253       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1254        random_id, random->min, random->max, random->mean, random->std,
1255        random->generator, random->seed, random_radical);
1256
1257   if (xbt_dict_size(random_value) == 0)
1258     random_value = xbt_dict_new();
1259
1260   if (!strcmp(random_radical, "")) {
1261     res = random_generate(random);
1262     rd_value = bprintf("%f", res);
1263     xbt_dict_set(random_value, random_id, rd_value, free);
1264   } else {
1265     radical_elements = xbt_str_split(random_radical, ",");
1266     xbt_dynar_foreach(radical_elements, iter, groups) {
1267       radical_ends = xbt_str_split(groups, "-");
1268       switch (xbt_dynar_length(radical_ends)) {
1269       case 1:
1270         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1271                    "Custom Random '%s' already exists !", random_id);
1272         res = random_generate(random);
1273         tmpbuf =
1274             bprintf("%s%d", random_id,
1275                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1276         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), free);
1277         xbt_free(tmpbuf);
1278         break;
1279
1280       case 2:
1281         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1282         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1283         for (i = start; i <= end; i++) {
1284           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1285                      "Custom Random '%s' already exists !", bprintf("%s%d",
1286                                                                     random_id,
1287                                                                     i));
1288           res = random_generate(random);
1289           tmpbuf = bprintf("%s%d", random_id, i);
1290           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), free);
1291           xbt_free(tmpbuf);
1292         }
1293         break;
1294       default:
1295         XBT_INFO("Malformed radical");
1296         break;
1297       }
1298       res = random_generate(random);
1299       rd_name = bprintf("%s_router", random_id);
1300       rd_value = bprintf("%f", res);
1301       xbt_dict_set(random_value, rd_name, rd_value, free);
1302
1303       xbt_dynar_free(&radical_ends);
1304     }
1305     free(rd_name);
1306     xbt_dynar_free(&radical_elements);
1307   }
1308 }
1309
1310 void routing_register_callbacks()
1311 {
1312   sg_platf_host_add_cb(parse_S_host);
1313   sg_platf_router_add_cb(parse_S_router);
1314
1315   surfxml_add_callback(STag_surfxml_random_cb_list, &routing_parse_Srandom);
1316
1317   surfxml_add_callback(STag_surfxml_route_cb_list, &routing_parse_S_route);
1318   surfxml_add_callback(STag_surfxml_ASroute_cb_list, &routing_parse_S_ASroute);
1319   surfxml_add_callback(STag_surfxml_bypassRoute_cb_list,
1320                        &routing_parse_S_bypassRoute);
1321
1322   surfxml_add_callback(ETag_surfxml_link_ctn_cb_list, &routing_parse_link_ctn);
1323
1324   surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_parse_E_route);
1325   surfxml_add_callback(ETag_surfxml_ASroute_cb_list, &routing_parse_E_ASroute);
1326   surfxml_add_callback(ETag_surfxml_bypassRoute_cb_list,
1327                        &routing_parse_E_bypassRoute);
1328
1329   surfxml_add_callback(STag_surfxml_cluster_cb_list, &routing_parse_cluster);
1330
1331   sg_platf_peer_add_cb(routing_parse_peer);
1332   sg_platf_postparse_add_cb(routing_parse_postparse);
1333
1334 #ifdef HAVE_TRACING
1335   instr_routing_define_callbacks();
1336 #endif
1337 }