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Fix unset variables issues
[simgrid.git] / src / surf / surf_routing.cpp
1 #include "surf_routing.hpp"
2 #include "surf_routing_private.hpp"
3 #include "surf/surfxml_parse_values.h"
4 #include "surf/random_mgr.h"
5
6 /**
7  * @ingroup SURF_build_api
8  * @brief A library containing all known workstations
9  */
10 xbt_lib_t host_lib;
11
12 int ROUTING_HOST_LEVEL;         //Routing level
13 int SURF_CPU_LEVEL;             //Surf cpu level
14 int SURF_WKS_LEVEL;             //Surf workstation level
15 int SIMIX_HOST_LEVEL;           //Simix level
16 int MSG_HOST_LEVEL;             //Msg level
17 int SD_HOST_LEVEL;              //Simdag level
18 int COORD_HOST_LEVEL=0;         //Coordinates level
19 int NS3_HOST_LEVEL;             //host node for ns3
20
21 xbt_dict_t watched_hosts_lib;
22
23 /**
24  * @ingroup SURF_build_api
25  * @brief A library containing all known links
26  */
27 xbt_lib_t link_lib;
28 int SD_LINK_LEVEL;              //Simdag level
29 int SURF_LINK_LEVEL;            //Surf level
30 int NS3_LINK_LEVEL;             //link for ns3
31
32 xbt_lib_t as_router_lib;
33 int ROUTING_ASR_LEVEL;          //Routing level
34 int COORD_ASR_LEVEL;            //Coordinates level
35 int NS3_ASR_LEVEL;              //host node for ns3
36 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
37
38 static xbt_dict_t random_value = NULL;
39
40
41 /** @brief Retrieve a routing edge from its name
42  *
43  * Routing edges are either CPU/workstation and routers, whatever
44  */
45 RoutingEdgePtr sg_routing_edge_by_name_or_null(const char *name) {
46   RoutingEdgePtr net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
47   if (!net_elm)
48         net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
49   return net_elm;
50 }
51
52 /* Global vars */
53 RoutingPlatfPtr routing_platf = NULL;
54 AsPtr current_routing = NULL;
55
56 /* global parse functions */
57 extern xbt_dynar_t mount_list;
58
59 extern "C" {
60 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
61 }
62
63 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
64 static void routing_parse_Srandom(void);        /* random bypass */
65
66 static void routing_parse_postparse(void);
67
68 /* this lines are only for replace use like index in the model table */
69 typedef enum {
70   SURF_MODEL_FULL = 0,
71   SURF_MODEL_FLOYD,
72   SURF_MODEL_DIJKSTRA,
73   SURF_MODEL_DIJKSTRACACHE,
74   SURF_MODEL_NONE,
75   SURF_MODEL_VIVALDI,
76   SURF_MODEL_CLUSTER
77 } e_routing_types;
78
79 struct s_model_type routing_models[] = {
80   {"Full",
81    "Full routing data (fast, large memory requirements, fully expressive)",
82    model_full_create, model_full_end},
83   {"Floyd",
84    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
85    model_floyd_create, model_floyd_end},
86   {"Dijkstra",
87    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
88    model_dijkstra_create, model_dijkstra_both_end},
89   {"DijkstraCache",
90    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
91    model_dijkstracache_create, model_dijkstra_both_end},
92   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
93    model_none_create,  NULL},
94   {"Vivaldi", "Vivaldi routing",
95    model_vivaldi_create, NULL},
96   {"Cluster", "Cluster routing",
97    model_cluster_create, NULL},
98   {NULL, NULL, NULL, NULL}
99 };
100
101 /**
102  * \brief Add a "host_link" to the network element list
103  */
104 static void parse_S_host_link(sg_platf_host_link_cbarg_t host)
105 {
106   RoutingEdgePtr info = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL));
107   xbt_assert(info, "Host '%s' not found!", host->id);
108   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
109       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
110       "You have to be in model Cluster to use tag host_link!");
111
112   s_surf_parsing_link_up_down_t link_up_down;
113   link_up_down.link_up = xbt_lib_get_or_null(link_lib, host->link_up, SURF_LINK_LEVEL);
114   link_up_down.link_down = xbt_lib_get_or_null(link_lib, host->link_down, SURF_LINK_LEVEL);
115   link_up_down.limiter_link = NULL;
116   link_up_down.loopback_link = NULL;
117
118   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
119   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
120
121   if(!current_routing->p_linkUpDownList)
122     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
123
124   // If dynar is is greater than edge id and if the host_link is already defined
125   if(xbt_dynar_length(current_routing->p_linkUpDownList) > info->m_id &&
126       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->m_id, void*))
127     xbt_die("Host_link for '%s' is already defined!",host->id);
128
129   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->p_name, info->m_id);
130   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->m_id, s_surf_parsing_link_up_down_t, link_up_down);
131 }
132
133 /**
134  * \brief Add a "host" to the network element list
135  */
136 static void parse_S_host(sg_platf_host_cbarg_t host)
137 {
138   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
139     current_routing->p_hierarchy = SURF_ROUTING_BASE;
140   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
141              "Reading a host, processing unit \"%s\" already exists", host->id);
142
143   RoutingEdgePtr info = new RoutingEdge();
144   info->p_rcComponent = current_routing;
145   info->p_rcType = SURF_NETWORK_ELEMENT_HOST;
146   info->p_name = xbt_strdup(host->id);
147   info->m_id = current_routing->parsePU(info);
148   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
149   XBT_DEBUG("Having set name '%s' id '%d'", host->id, info->m_id);
150
151   if(mount_list){
152     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
153     mount_list = NULL;
154   }
155
156   if (host->coord && strcmp(host->coord, "")) {
157     unsigned int cursor;
158     char*str;
159
160     if (!COORD_HOST_LEVEL)
161       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
162     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
163     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
164     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
165     xbt_dynar_foreach(ctn_str,cursor, str) {
166       double val = atof(str);
167       xbt_dynar_push(ctn,&val);
168     }
169     xbt_dynar_shrink(ctn, 0);
170     xbt_dynar_free(&ctn_str);
171     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
172     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
173   }
174 }
175
176 /**
177  * \brief Add a "router" to the network element list
178  */
179 static void parse_S_router(sg_platf_router_cbarg_t router)
180 {
181   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
182     current_routing->p_hierarchy = SURF_ROUTING_BASE;
183   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
184              "Reading a router, processing unit \"%s\" already exists",
185              router->id);
186
187   RoutingEdgePtr info = new RoutingEdge();
188   info->p_rcComponent = current_routing;
189   info->p_rcType = SURF_NETWORK_ELEMENT_ROUTER;
190   info->p_name = xbt_strdup(router->id);
191   info->m_id = current_routing->parsePU(info);
192   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
193   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->m_id);
194
195   if (router->coord && strcmp(router->coord, "")) {
196     unsigned int cursor;
197     char*str;
198
199     if (!COORD_ASR_LEVEL)
200       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
201     /* Pre-parse the host coordinates */
202     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
203     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
204     xbt_dynar_foreach(ctn_str,cursor, str) {
205       double val = atof(str);
206       xbt_dynar_push(ctn,&val);
207     }
208     xbt_dynar_shrink(ctn, 0);
209     xbt_dynar_free(&ctn_str);
210     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
211     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
212   }
213 }
214
215 /**
216  * \brief Store the route by calling the set_route function of the current routing component
217  */
218 static void parse_E_route(sg_platf_route_cbarg_t route)
219 {
220   /*FIXME:REMOVE:xbt_assert(current_routing->parse_route,
221              "no defined method \"set_route\" in \"%s\"",
222              current_routing->name);*/
223
224   current_routing->parseRoute(route);
225 }
226
227 /**
228  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
229  */
230 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
231 {
232   /*FIXME:REMOVE:xbt_assert(current_routing->parse_ASroute,
233              "no defined method \"set_ASroute\" in \"%s\"",
234              current_routing->name);*/
235   current_routing->parseASroute(ASroute);
236 }
237
238 /**
239  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
240  */
241 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
242 {
243   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
244              "Bypassing mechanism not implemented by routing '%s'",
245              current_routing->name);*/
246
247   current_routing->parseBypassroute(route);
248 }
249
250 /**
251  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
252  */
253 static void parse_E_bypassASroute(sg_platf_route_cbarg_t ASroute)
254 {
255   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
256              "Bypassing mechanism not implemented by routing '%s'",
257              current_routing->name);*/
258   current_routing->parseBypassroute(ASroute);
259 }
260
261 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
262 {
263   tmgr_trace_t tmgr_trace;
264   if (!trace->file || strcmp(trace->file, "") != 0) {
265     tmgr_trace = tmgr_trace_new_from_file(trace->file);
266   } else if (strcmp(trace->pc_data, "") == 0) {
267     tmgr_trace = NULL;
268   } else {
269     tmgr_trace =
270           tmgr_trace_new_from_string(trace->id, trace->pc_data,
271                                      trace->periodicity);
272   }
273   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
274 }
275
276 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
277 {
278   xbt_assert(xbt_dict_get_or_null
279               (traces_set_list, trace_connect->trace),
280               "Cannot connect trace %s to %s: trace unknown",
281               trace_connect->trace,
282               trace_connect->element);
283
284   switch (trace_connect->kind) {
285   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
286     xbt_dict_set(trace_connect_list_host_avail,
287         trace_connect->trace,
288         xbt_strdup(trace_connect->element), NULL);
289     break;
290   case SURF_TRACE_CONNECT_KIND_POWER:
291     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
292         xbt_strdup(trace_connect->element), NULL);
293     break;
294   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
295     xbt_dict_set(trace_connect_list_link_avail,
296         trace_connect->trace,
297         xbt_strdup(trace_connect->element), NULL);
298     break;
299   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
300     xbt_dict_set(trace_connect_list_bandwidth,
301         trace_connect->trace,
302         xbt_strdup(trace_connect->element), NULL);
303     break;
304   case SURF_TRACE_CONNECT_KIND_LATENCY:
305     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
306         xbt_strdup(trace_connect->element), NULL);
307     break;
308   default:
309     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
310         trace_connect->trace, trace_connect->element);
311     break;
312   }
313 }
314
315 extern int _sg_init_status; /* yay, this is an horrible hack */
316
317 /**
318  * \brief Make a new routing component to the platform
319  *
320  * Add a new autonomous system to the platform. Any elements (such as host,
321  * router or sub-AS) added after this call and before the corresponding call
322  * to sg_platf_new_AS_close() will be added to this AS.
323  *
324  * Once this function was called, the configuration concerning the used
325  * models cannot be changed anymore.
326  *
327  * @param AS_id name of this autonomous system. Must be unique in the platform
328  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
329  */
330 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
331 {
332   XBT_DEBUG("routing_AS_begin");
333   routing_model_description_t model = NULL;
334
335   xbt_assert(!xbt_lib_get_or_null
336              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
337              "The AS \"%s\" already exists", AS->id);
338
339   _sg_init_status = 2; /* horrible hack: direct access to the global controlling the level of configuration to prevent any further config */
340
341   /* search the routing model */
342   switch(AS->routing){
343     case A_surfxml_AS_routing_Cluster:       model = &routing_models[SURF_MODEL_CLUSTER];break;
344     case A_surfxml_AS_routing_Dijkstra:      model = &routing_models[SURF_MODEL_DIJKSTRA];break;
345     case A_surfxml_AS_routing_DijkstraCache: model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
346     case A_surfxml_AS_routing_Floyd:         model = &routing_models[SURF_MODEL_FLOYD];break;
347     case A_surfxml_AS_routing_Full:          model = &routing_models[SURF_MODEL_FULL];break;
348     case A_surfxml_AS_routing_None:          model = &routing_models[SURF_MODEL_NONE];break;
349     case A_surfxml_AS_routing_Vivaldi:       model = &routing_models[SURF_MODEL_VIVALDI];break;
350     default: xbt_die("Not a valid model!!!");
351     break;
352   }
353
354   /* make a new routing component */
355   AsPtr new_as = model->create();
356
357   new_as->p_modelDesc = model;
358   new_as->p_hierarchy = SURF_ROUTING_NULL;
359   new_as->p_name = xbt_strdup(AS->id);
360
361   RoutingEdgePtr info = new RoutingEdge();
362
363   if (current_routing == NULL && routing_platf->p_root == NULL) {
364
365     /* it is the first one */
366     new_as->p_routingFather = NULL;
367     routing_platf->p_root = new_as;
368     info->m_id = -1;
369   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
370
371     xbt_assert(!xbt_dict_get_or_null
372                (current_routing->p_routingSons, AS->id),
373                "The AS \"%s\" already exists", AS->id);
374     /* it is a part of the tree */
375     new_as->p_routingFather = current_routing;
376     /* set the father behavior */
377     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
378       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
379     /* add to the sons dictionary */
380     xbt_dict_set(current_routing->p_routingSons, AS->id,
381                  (void *) new_as, NULL);
382     /* add to the father element list */
383     info->m_id = current_routing->parseAS(info);
384   } else {
385     THROWF(arg_error, 0, "All defined components must be belong to a AS");
386   }
387
388   info->p_rcComponent = new_as->p_routingFather;
389   info->p_rcType = SURF_NETWORK_ELEMENT_AS;
390   info->p_name = new_as->p_name;
391
392   xbt_lib_set(as_router_lib, info->p_name, ROUTING_ASR_LEVEL,
393               (void *) info);
394   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->m_id);
395
396   /* set the new current component of the tree */
397   current_routing = new_as;
398   current_routing->p_netElem = info;
399
400 }
401
402 /**
403  * \brief Specify that the current description of AS is finished
404  *
405  * Once you've declared all the content of your AS, you have to close
406  * it with this call. Your AS is not usable until you call this function.
407  *
408  * @fixme: this call is not as robust as wanted: bad things WILL happen
409  * if you call it twice for the same AS, or if you forget calling it, or
410  * even if you add stuff to a closed AS
411  *
412  */
413 void routing_AS_end(sg_platf_AS_cbarg_t AS)
414 {
415
416   if (current_routing == NULL) {
417     THROWF(arg_error, 0, "Close an AS, but none was under construction");
418   } else {
419     if (current_routing->p_modelDesc->end)
420       current_routing->p_modelDesc->end(current_routing);
421     current_routing = current_routing->p_routingFather;
422   }
423 }
424
425 /* Aux Business methods */
426
427 /**
428  * \brief Get the AS father and the first elements of the chain
429  *
430  * \param src the source host name
431  * \param dst the destination host name
432  *
433  * Get the common father of the to processing units, and the first different
434  * father in the chain
435  */
436 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
437                             AS_t * res_father,
438                             AS_t * res_src,
439                             AS_t * res_dst)
440 {
441   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
442 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
443   AsPtr src_as, dst_as;
444   AsPtr path_src[ELEMENTS_FATHER_MAXDEPTH];
445   AsPtr path_dst[ELEMENTS_FATHER_MAXDEPTH];
446   int index_src = 0;
447   int index_dst = 0;
448   AsPtr current;
449   AsPtr current_src;
450   AsPtr current_dst;
451   AsPtr father;
452
453   /* (1) find the as where the src and dst are located */
454   sg_routing_edge_t src_data = src;
455   sg_routing_edge_t dst_data = dst;
456   src_as = src_data->p_rcComponent;
457   dst_as = dst_data->p_rcComponent;
458 #ifndef NDEBUG
459   char* src_name = src_data->p_name;
460   char* dst_name = dst_data->p_name;
461 #endif
462
463   xbt_assert(src_as && dst_as,
464              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
465
466   /* (2) find the path to the root routing component */
467   for (current = src_as; current != NULL; current = current->p_routingFather) {
468     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
469       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
470     path_src[index_src++] = current;
471   }
472   for (current = dst_as; current != NULL; current = current->p_routingFather) {
473     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
474       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
475     path_dst[index_dst++] = current;
476   }
477
478   /* (3) find the common father */
479   do {
480     current_src = path_src[--index_src];
481     current_dst = path_dst[--index_dst];
482   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
483
484   /* (4) they are not in the same routing component, make the path */
485   if (current_src == current_dst)
486     father = current_src;
487   else
488     father = path_src[index_src + 1];
489
490   /* (5) result generation */
491   *res_father = father;         /* first the common father of src and dst */
492   *res_src = current_src;       /* second the first different father of src */
493   *res_dst = current_dst;       /* three  the first different father of dst */
494
495 #undef ELEMENTS_FATHER_MAXDEPTH
496 }
497
498 /* Global Business methods */
499
500 /**
501  * \brief Recursive function for get_route_latency
502  *
503  * \param src the source host name
504  * \param dst the destination host name
505  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
506  * \param *latency the latency, if needed
507  *
508  * This function is called by "get_route" and "get_latency". It allows to walk
509  * recursively through the ASes tree.
510  */
511 static void _get_route_and_latency(RoutingEdgePtr src, RoutingEdgePtr dst,
512                                    xbt_dynar_t * links, double *latency)
513 {
514   s_sg_platf_route_cbarg_t route;
515   memset(&route,0,sizeof(route));
516
517   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
518   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->p_name, dst->p_name);
519
520   /* Find how src and dst are interconnected */
521   AsPtr common_father, src_father, dst_father;
522   elements_father(src, dst, &common_father, &src_father, &dst_father);
523   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
524       common_father->p_name, src_father->p_name, dst_father->p_name);
525
526   /* Check whether a direct bypass is defined */
527   sg_platf_route_cbarg_t e_route_bypass = NULL;
528   //FIXME:REMOVE:if (common_father->get_bypass_route)
529
530   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
531
532   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
533   if (e_route_bypass) {
534     xbt_dynar_merge(links, &e_route_bypass->link_list);
535     //FIXME:generic_free_route(e_route_bypass);
536     return;
537   }
538
539   /* If src and dst are in the same AS, life is good */
540   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
541     route.link_list = *links;
542     common_father->getRouteAndLatency(src, dst, &route, latency);
543     // if vivaldi latency+=vivaldi(src,dst)
544     return;
545   }
546
547   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
548
549   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
550   // Find the net_card corresponding to father
551   RoutingEdgePtr src_father_net_elm = src_father->p_netElem;
552   RoutingEdgePtr dst_father_net_elm = dst_father->p_netElem;
553
554   common_father->getRouteAndLatency(src_father_net_elm, dst_father_net_elm,
555                                     &route, latency);
556
557   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
558       "bad gateways for route from \"%s\" to \"%s\"", src->p_name, dst->p_name);
559
560   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
561   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
562
563   /* If source gateway is not our source, we have to recursively find our way up to this point */
564   if (src != src_gateway_net_elm)
565     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
566   xbt_dynar_merge(links, &route.link_list);
567
568   /* If dest gateway is not our destination, we have to recursively find our way from this point */
569   if (dst_gateway_net_elm != dst)
570     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
571
572   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
573 }
574
575 AS_t surf_platf_get_root(routing_platf_t platf){
576   return platf->p_root;
577 }
578
579 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_routing_edge_t edge){
580   return edge->p_rcType;
581 }
582
583
584 /**
585  * \brief Find a route between hosts
586  *
587  * \param src the network_element_t for src host
588  * \param dst the network_element_t for dst host
589  * \param route where to store the list of links.
590  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
591  * \param latency where to store the latency experienced on the path (or NULL if not interested)
592  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
593  * \pre route!=NULL
594  *
595  * walk through the routing components tree and find a route between hosts
596  * by calling the differents "get_route" functions in each routing component.
597  */
598 void RoutingPlatf::getRouteAndLatency(RoutingEdgePtr src, RoutingEdgePtr dst,
599                                    xbt_dynar_t* route, double *latency)
600 {
601   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->p_name, dst->p_name);
602   if (!*route) {
603     xbt_dynar_reset(routing_platf->p_lastRoute);
604     *route = routing_platf->p_lastRoute;
605   }
606
607   _get_route_and_latency(src, dst, route, latency);
608
609   xbt_assert(!latency || *latency >= 0.0,
610              "negative latency on route between \"%s\" and \"%s\"", src->p_name, dst->p_name);
611 }
612
613 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
614   return recursiveGetOneLinkRoutes(p_root);
615 }
616
617 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(AsPtr rc)
618 {
619   xbt_dynar_t ret = xbt_dynar_new(sizeof(OnelinkPtr), xbt_free);
620
621   //adding my one link routes
622   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
623   if (onelink_mine)
624     xbt_dynar_merge(&ret,&onelink_mine);
625
626   //recursing
627   char *key;
628   xbt_dict_cursor_t cursor = NULL;
629   AS_t rc_child;
630   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
631     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
632     if (onelink_child)
633       xbt_dynar_merge(&ret,&onelink_child);
634   }
635   return ret;
636 }
637
638 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
639 {
640   RoutingEdgePtr rc = sg_routing_edge_by_name_or_null(name);
641   if (rc)
642     return rc->p_rcType;
643
644   return SURF_NETWORK_ELEMENT_NULL;
645 }
646
647 /**
648  * \brief Generic method: create the global routing schema
649  *
650  * Make a global routing structure and set all the parsing functions.
651  */
652 void routing_model_create( void *loopback)
653 {
654   /* config the uniq global routing */
655   routing_platf = new RoutingPlatf();
656   routing_platf->p_root = NULL;
657   routing_platf->p_loopback = loopback;
658   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
659   /* no current routing at moment */
660   current_routing = NULL;
661 }
662
663
664 /* ************************************************** */
665 /* ********** PATERN FOR NEW ROUTING **************** */
666
667 /* The minimal configuration of a new routing model need the next functions,
668  * also you need to set at the start of the file, the new model in the model
669  * list. Remember keep the null ending of the list.
670  */
671 /*** Routing model structure ***/
672 // typedef struct {
673 //   s_routing_component_t generic_routing;
674 //   /* things that your routing model need */
675 // } s_routing_component_NEW_t,*routing_component_NEW_t;
676
677 /*** Parse routing model functions ***/
678 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
679 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
680 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
681 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
682 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
683
684 /*** Business methods ***/
685 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
686 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
687 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
688
689 /*** Creation routing model functions ***/
690 // static void* model_NEW_create(void) {
691 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
692 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
693 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
694 //   new_component->generic_routing.set_route = model_NEW_set_route;
695 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
696 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
697 //   new_component->generic_routing.get_route = NEW_get_route;
698 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
699 //   new_component->generic_routing.finalize = NEW_finalize;
700 //   /* initialization of internal structures */
701 //   return new_component;
702 // } /* mandatory */
703 // static void  model_NEW_load(void) {}   /* mandatory */
704 // static void  model_NEW_unload(void) {} /* mandatory */
705 // static void  model_NEW_end(void) {}    /* mandatory */
706
707 /* ************************************************************************** */
708 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
709
710 void routing_cluster_add_backbone(void* bb) {
711   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
712         "You have to be in model Cluster to use tag backbone!");
713   xbt_assert(!surf_as_cluster_get_backbone(current_routing), "The backbone link is already defined!");
714   surf_as_cluster_set_backbone(current_routing, bb);
715   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
716 }
717
718 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
719 {
720   int start, end, i;
721   char *groups , *host_id , *link_id = NULL;
722   unsigned int iter;
723   xbt_dynar_t radical_elements;
724   xbt_dynar_t radical_ends;
725
726   //Make all hosts
727   radical_elements = xbt_str_split(cabinet->radical, ",");
728   xbt_dynar_foreach(radical_elements, iter, groups) {
729
730     radical_ends = xbt_str_split(groups, "-");
731     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
732
733     switch (xbt_dynar_length(radical_ends)) {
734     case 1:
735       end = start;
736       break;
737     case 2:
738       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
739       break;
740     default:
741       surf_parse_error("Malformed radical");
742       break;
743     }
744     s_sg_platf_host_cbarg_t host;
745     memset(&host, 0, sizeof(host));
746     host.initial_state = SURF_RESOURCE_ON;
747     host.power_peak = cabinet->power;
748     host.power_scale = 1.0;
749     host.core_amount = 1;
750
751     s_sg_platf_link_cbarg_t link;
752     memset(&link, 0, sizeof(link));
753     link.state = SURF_RESOURCE_ON;
754     link.policy = SURF_LINK_FULLDUPLEX;
755     link.latency = cabinet->lat;
756     link.bandwidth = cabinet->bw;
757
758     s_sg_platf_host_link_cbarg_t host_link;
759     memset(&host_link, 0, sizeof(host_link));
760
761     for (i = start; i <= end; i++) {
762       host_id = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
763       link_id = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
764       host.id = host_id;
765       link.id = link_id;
766       sg_platf_new_host(&host);
767       sg_platf_new_link(&link);
768
769       char* link_up = bprintf("%s_UP",link_id);
770       char* link_down = bprintf("%s_DOWN",link_id);
771       host_link.id = host_id;
772       host_link.link_up = link_up;
773       host_link.link_down= link_down;
774       sg_platf_new_host_link(&host_link);
775
776       free(host_id);
777       free(link_id);
778       free(link_up);
779       free(link_down);
780     }
781
782     xbt_dynar_free(&radical_ends);
783   }
784   xbt_dynar_free(&radical_elements);
785 }
786
787 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
788 {
789   char *host_id, *groups, *link_id = NULL;
790   xbt_dict_t patterns = NULL;
791
792   s_sg_platf_host_cbarg_t host;
793   s_sg_platf_link_cbarg_t link;
794
795   unsigned int iter;
796   int start, end, i;
797   xbt_dynar_t radical_elements;
798   xbt_dynar_t radical_ends;
799
800   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
801       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
802     patterns = xbt_dict_new_homogeneous(xbt_free_f);
803     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
804     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
805     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
806   }
807
808   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
809   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
810   AS.id = cluster->id;
811   AS.routing = A_surfxml_AS_routing_Cluster;
812   sg_platf_new_AS_begin(&AS);
813
814   current_routing->p_linkUpDownList
815             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
816
817   //Make all hosts
818   radical_elements = xbt_str_split(cluster->radical, ",");
819   xbt_dynar_foreach(radical_elements, iter, groups) {
820
821     radical_ends = xbt_str_split(groups, "-");
822     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
823
824     switch (xbt_dynar_length(radical_ends)) {
825     case 1:
826       end = start;
827       break;
828     case 2:
829       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
830       break;
831     default:
832       surf_parse_error("Malformed radical");
833       break;
834     }
835     for (i = start; i <= end; i++) {
836       host_id =
837           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
838       link_id = bprintf("%s_link_%d", cluster->id, i);
839
840       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
841
842       memset(&host, 0, sizeof(host));
843       host.id = host_id;
844       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
845         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
846         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
847         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
848         host.power_trace = tmgr_trace_new_from_file(avail_file);
849         xbt_free(avail_file);
850       } else {
851         XBT_DEBUG("\tavailability_file=\"\"");
852       }
853
854       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
855         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
856         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
857         host.state_trace = tmgr_trace_new_from_file(avail_file);
858         xbt_free(avail_file);
859       } else {
860         XBT_DEBUG("\tstate_file=\"\"");
861       }
862
863       host.power_peak = cluster->power;
864       host.power_scale = 1.0;
865       host.core_amount = cluster->core_amount;
866       host.initial_state = SURF_RESOURCE_ON;
867       host.coord = "";
868       sg_platf_new_host(&host);
869       XBT_DEBUG("</host>");
870
871       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
872                 cluster->bw, cluster->lat);
873
874       memset(&link, 0, sizeof(link));
875       link.id = link_id;
876       link.bandwidth = cluster->bw;
877       link.latency = cluster->lat;
878       link.state = SURF_RESOURCE_ON;
879       link.policy = cluster->sharing_policy;
880       sg_platf_new_link(&link);
881
882       s_surf_parsing_link_up_down_t info;
883
884       if (link.policy == SURF_LINK_FULLDUPLEX) {
885         char *tmp_link = bprintf("%s_UP", link_id);
886         info.link_up =
887             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
888         free(tmp_link);
889         tmp_link = bprintf("%s_DOWN", link_id);
890         info.link_down =
891             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
892         free(tmp_link);
893       } else {
894         info.link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
895         info.link_down = info.link_up;
896       }
897
898       if(cluster->limiter_link!=0){
899         char *tmp_link = bprintf("%s_limiter", link_id);
900         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
901                 cluster->limiter_link);
902
903
904         memset(&link, 0, sizeof(link));
905         link.id = tmp_link;
906         link.bandwidth = cluster->limiter_link;
907         link.latency = 0;
908         link.state = SURF_RESOURCE_ON;
909         link.policy = SURF_LINK_SHARED;
910         sg_platf_new_link(&link);
911          info.limiter_link =
912             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
913         free(tmp_link);
914       }else{
915         info.limiter_link =NULL;
916       }
917
918       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
919         char *tmp_link = bprintf("%s_loopback", link_id);
920         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
921                 cluster->limiter_link);
922
923
924         memset(&link, 0, sizeof(link));
925         link.id = tmp_link;
926         link.bandwidth = cluster->loopback_bw;
927         link.latency = cluster->loopback_lat;
928         link.state = SURF_RESOURCE_ON;
929         link.policy = SURF_LINK_FATPIPE;
930         sg_platf_new_link(&link);
931          info.loopback_link =
932             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
933         free(tmp_link);
934       }else{
935         info.loopback_link =NULL;
936       }
937
938       xbt_dynar_push(current_routing->p_linkUpDownList, &info);
939       xbt_free(link_id);
940       xbt_free(host_id);
941     }
942
943     xbt_dynar_free(&radical_ends);
944   }
945   xbt_dynar_free(&radical_elements);
946
947   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
948   // and it's very useful to connect clusters together
949   XBT_DEBUG(" ");
950   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
951   char *newid = NULL;
952   s_sg_platf_router_cbarg_t router;
953   memset(&router, 0, sizeof(router));
954   router.id = cluster->router_id;
955   router.coord = "";
956   if (!router.id || !strcmp(router.id, ""))
957     router.id = newid =
958         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
959                 cluster->suffix);
960   sg_platf_new_router(&router);
961   ((AsClusterPtr)current_routing)->p_router = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
962   free(newid);
963
964   //Make the backbone
965   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
966     char *link_backbone = bprintf("%s_backbone", cluster->id);
967     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
968               cluster->bb_bw, cluster->bb_lat);
969
970     memset(&link, 0, sizeof(link));
971     link.id = link_backbone;
972     link.bandwidth = cluster->bb_bw;
973     link.latency = cluster->bb_lat;
974     link.state = SURF_RESOURCE_ON;
975     link.policy = cluster->bb_sharing_policy;
976
977     sg_platf_new_link(&link);
978
979     routing_cluster_add_backbone(xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
980
981     free(link_backbone);
982   }
983
984   XBT_DEBUG("</AS>");
985   sg_platf_new_AS_end();
986   XBT_DEBUG(" ");
987   xbt_dict_free(&patterns); // no op if it were never set
988 }
989
990 static void routing_parse_postparse(void) {
991   xbt_dict_free(&random_value);
992 }
993
994 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
995 {
996   char *host_id = NULL;
997   char *link_id;
998
999   XBT_DEBUG(" ");
1000   host_id = HOST_PEER(peer->id);
1001   link_id = LINK_PEER(peer->id);
1002
1003   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1004   s_sg_platf_host_cbarg_t host;
1005   memset(&host, 0, sizeof(host));
1006   host.initial_state = SURF_RESOURCE_ON;
1007   host.id = host_id;
1008   host.power_peak = peer->power;
1009   host.power_scale = 1.0;
1010   host.power_trace = peer->availability_trace;
1011   host.state_trace = peer->state_trace;
1012   host.core_amount = 1;
1013   host.coord = peer->coord;
1014   sg_platf_new_host(&host);
1015
1016   s_sg_platf_link_cbarg_t link;
1017   memset(&link, 0, sizeof(link));
1018   link.state = SURF_RESOURCE_ON;
1019   link.policy = SURF_LINK_SHARED;
1020   link.latency = peer->lat;
1021
1022   char* link_up = bprintf("%s_UP",link_id);
1023   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1024             peer->bw_out, peer->lat);
1025   link.id = link_up;
1026   link.bandwidth = peer->bw_out;
1027   sg_platf_new_link(&link);
1028
1029   char* link_down = bprintf("%s_DOWN",link_id);
1030   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1031             peer->bw_in, peer->lat);
1032   link.id = link_down;
1033   link.bandwidth = peer->bw_in;
1034   sg_platf_new_link(&link);
1035
1036   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1037   s_sg_platf_host_link_cbarg_t host_link;
1038   memset(&host_link, 0, sizeof(host_link));
1039   host_link.id = host_id;
1040   host_link.link_up = link_up;
1041   host_link.link_down= link_down;
1042   sg_platf_new_host_link(&host_link);
1043
1044   XBT_DEBUG(" ");
1045
1046   //xbt_dynar_free(&tab_elements_num);
1047   free(host_id);
1048   free(link_id);
1049   free(link_up);
1050   free(link_down);
1051 }
1052
1053 static void routing_parse_Srandom(void)
1054 {
1055   double mean, std, min, max, seed;
1056   char *random_id = A_surfxml_random_id;
1057   char *random_radical = A_surfxml_random_radical;
1058   char *rd_name = NULL;
1059   char *rd_value;
1060   mean = surf_parse_get_double(A_surfxml_random_mean);
1061   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1062   min = surf_parse_get_double(A_surfxml_random_min);
1063   max = surf_parse_get_double(A_surfxml_random_max);
1064   seed = surf_parse_get_double(A_surfxml_random_seed);
1065
1066   double res = 0;
1067   int i = 0;
1068   random_data_t random = xbt_new0(s_random_data_t, 1);
1069   char *tmpbuf;
1070
1071   xbt_dynar_t radical_elements;
1072   unsigned int iter;
1073   char *groups;
1074   int start, end;
1075   xbt_dynar_t radical_ends;
1076
1077   switch (A_surfxml_random_generator) {
1078   case AU_surfxml_random_generator:
1079   case A_surfxml_random_generator_NONE:
1080     random->generator = NONE;
1081     break;
1082   case A_surfxml_random_generator_DRAND48:
1083     random->generator = DRAND48;
1084     break;
1085   case A_surfxml_random_generator_RAND:
1086     random->generator = RAND;
1087     break;
1088   case A_surfxml_random_generator_RNGSTREAM:
1089     random->generator = RNGSTREAM;
1090     break;
1091   default:
1092     surf_parse_error("Invalid random generator");
1093     break;
1094   }
1095   random->seed = seed;
1096   random->min = min;
1097   random->max = max;
1098
1099   /* Check user stupidities */
1100   if (max < min)
1101     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1102   if (mean < min)
1103     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1104   if (mean > max)
1105     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1106
1107   /* normalize the mean and standard deviation before storing */
1108   random->mean = (mean - min) / (max - min);
1109   random->std = std / (max - min);
1110
1111   if (random->mean * (1 - random->mean) < random->std * random->std)
1112     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1113            random->mean, random->std);
1114
1115   XBT_DEBUG
1116       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1117        random_id, random->min, random->max, random->mean, random->std,
1118        (int)random->generator, random->seed, random_radical);
1119
1120   if (!random_value)
1121     random_value = xbt_dict_new_homogeneous(free);
1122
1123   if (!strcmp(random_radical, "")) {
1124     res = random_generate(random);
1125     rd_value = bprintf("%f", res);
1126     xbt_dict_set(random_value, random_id, rd_value, NULL);
1127   } else {
1128     radical_elements = xbt_str_split(random_radical, ",");
1129     xbt_dynar_foreach(radical_elements, iter, groups) {
1130       radical_ends = xbt_str_split(groups, "-");
1131       switch (xbt_dynar_length(radical_ends)) {
1132       case 1:
1133         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1134                    "Custom Random '%s' already exists !", random_id);
1135         res = random_generate(random);
1136         tmpbuf =
1137             bprintf("%s%d", random_id,
1138                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1139         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1140         xbt_free(tmpbuf);
1141         break;
1142
1143       case 2:
1144         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1145         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1146         for (i = start; i <= end; i++) {
1147           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1148                      "Custom Random '%s' already exists !", bprintf("%s%d",
1149                                                                     random_id,
1150                                                                     i));
1151           res = random_generate(random);
1152           tmpbuf = bprintf("%s%d", random_id, i);
1153           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1154           xbt_free(tmpbuf);
1155         }
1156         break;
1157       default:
1158         XBT_CRITICAL("Malformed radical");
1159         break;
1160       }
1161       res = random_generate(random);
1162       rd_name = bprintf("%s_router", random_id);
1163       rd_value = bprintf("%f", res);
1164       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1165
1166       xbt_dynar_free(&radical_ends);
1167     }
1168     free(rd_name);
1169     xbt_dynar_free(&radical_elements);
1170   }
1171 }
1172
1173 void routing_register_callbacks()
1174 {
1175   sg_platf_host_add_cb(parse_S_host);
1176   sg_platf_router_add_cb(parse_S_router);
1177   sg_platf_host_link_add_cb(parse_S_host_link);
1178   sg_platf_route_add_cb(parse_E_route);
1179   sg_platf_ASroute_add_cb(parse_E_ASroute);
1180   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1181   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1182
1183   sg_platf_cluster_add_cb(routing_parse_cluster);
1184   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1185
1186   sg_platf_peer_add_cb(routing_parse_peer);
1187   sg_platf_postparse_add_cb(routing_parse_postparse);
1188
1189   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1190   sg_platf_AS_end_add_cb(routing_AS_end);
1191   sg_platf_AS_begin_add_cb(routing_AS_begin);
1192
1193   sg_platf_trace_add_cb(routing_parse_trace);
1194   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1195
1196 #ifdef HAVE_TRACING
1197   instr_routing_define_callbacks();
1198 #endif
1199 }
1200
1201 /**
1202  * \brief Recursive function for finalize
1203  *
1204  * \param rc the source host name
1205  *
1206  * This fuction is call by "finalize". It allow to finalize the
1207  * AS or routing components. It delete all the structures.
1208  */
1209 static void finalize_rec(AsPtr as) {
1210   xbt_dict_cursor_t cursor = NULL;
1211   char *key;
1212   AS_t elem;
1213
1214   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1215     finalize_rec(elem);
1216   }
1217
1218   delete as;;
1219 }
1220
1221 /** \brief Frees all memory allocated by the routing module */
1222 void routing_exit(void) {
1223   if (!routing_platf)
1224     return;
1225   xbt_dynar_free(&routing_platf->p_lastRoute);
1226   finalize_rec(routing_platf->p_root);
1227   xbt_free(routing_platf);
1228 }
1229
1230 AS_t surf_AS_get_routing_root() {
1231   return routing_platf->p_root;
1232 }
1233
1234 const char *surf_AS_get_name(AsPtr as) {
1235   return as->p_name;
1236 }
1237
1238 xbt_dict_t surf_AS_get_routing_sons(AsPtr as) {
1239   return as->p_routingSons;
1240 }
1241
1242 const char *surf_AS_get_model(AsPtr as) {
1243   return as->p_modelDesc->name;
1244 }
1245
1246 xbt_dynar_t surf_AS_get_hosts(AsPtr as) {
1247   xbt_dynar_t elms = as->p_indexNetworkElm;
1248   sg_routing_edge_t relm;
1249   xbt_dictelm_t delm;
1250   int index;
1251   int count = xbt_dynar_length(elms);
1252   xbt_dynar_t res =  xbt_dynar_new(sizeof(xbt_dictelm_t), NULL);
1253   for (index = 0; index < count; index++) {
1254      relm = xbt_dynar_get_as(elms, index, RoutingEdgePtr);
1255      delm = xbt_lib_get_elm_or_null(host_lib, relm->p_name);
1256      if (delm!=NULL) {
1257        xbt_dynar_push(res, &delm);
1258      }
1259   }
1260   return res;
1261 }
1262
1263 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1264   as->getGraph(graph, nodes, edges);
1265 }
1266