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Fix warnings about comparisons of integers of different types.
[simgrid.git] / src / surf / surf_routing.cpp
1 /* Copyright (c) 2009, 2010, 2011, 2013. 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 "surf_routing.hpp"
8 #include "surf_routing_private.hpp"
9
10 #include "simgrid/platf_interface.h"    // platform creation API internal interface
11 #include "simgrid/sg_config.h"
12
13 #include "surf/surfxml_parse_values.h"
14
15 /**
16  * @ingroup SURF_build_api
17  * @brief A library containing all known workstations
18  */
19 xbt_lib_t host_lib;
20
21 int ROUTING_HOST_LEVEL;         //Routing level
22 int SURF_CPU_LEVEL;             //Surf cpu level
23 int SURF_WKS_LEVEL;             //Surf workstation level
24 int SIMIX_HOST_LEVEL;           //Simix host level
25 int SIMIX_STORAGE_LEVEL;        //Simix storage level
26 int MSG_HOST_LEVEL;             //Msg host level
27 int MSG_STORAGE_LEVEL;          //Msg storage level
28 int SD_HOST_LEVEL;              //Simdag host level
29 int SD_STORAGE_LEVEL;           //Simdag storage level
30 int COORD_HOST_LEVEL=0;         //Coordinates level
31 int NS3_HOST_LEVEL;             //host node for ns3
32
33 /**
34  * @ingroup SURF_build_api
35  * @brief A library containing all known links
36  */
37 xbt_lib_t link_lib;
38 int SD_LINK_LEVEL;              //Simdag level
39 int SURF_LINK_LEVEL;            //Surf level
40 int NS3_LINK_LEVEL;             //link for ns3
41
42 xbt_lib_t as_router_lib;
43 int ROUTING_ASR_LEVEL;          //Routing level
44 int COORD_ASR_LEVEL;            //Coordinates level
45 int NS3_ASR_LEVEL;              //host node for ns3
46 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
47
48 static xbt_dict_t random_value = NULL;
49
50
51 /** @brief Retrieve a routing edge from its name
52  *
53  * Routing edges are either CPU/workstation and routers, whatever
54  */
55 RoutingEdgePtr sg_routing_edge_by_name_or_null(const char *name) {
56   RoutingEdgePtr net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
57   if (!net_elm)
58         net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
59   return net_elm;
60 }
61
62 /* Global vars */
63 RoutingPlatfPtr routing_platf = NULL;
64 AsPtr current_routing = NULL;
65
66 /* global parse functions */
67 extern xbt_dynar_t mount_list;
68
69 extern "C" {
70 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
71 }
72
73 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
74 static void routing_parse_Srandom(void);        /* random bypass */
75
76 static void routing_parse_postparse(void);
77
78 /* this lines are only for replace use like index in the model table */
79 typedef enum {
80   SURF_MODEL_FULL = 0,
81   SURF_MODEL_FLOYD,
82   SURF_MODEL_DIJKSTRA,
83   SURF_MODEL_DIJKSTRACACHE,
84   SURF_MODEL_NONE,
85   SURF_MODEL_VIVALDI,
86   SURF_MODEL_CLUSTER
87 } e_routing_types;
88
89 struct s_model_type routing_models[] = {
90   {"Full",
91    "Full routing data (fast, large memory requirements, fully expressive)",
92    model_full_create, model_full_end},
93   {"Floyd",
94    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
95    model_floyd_create, model_floyd_end},
96   {"Dijkstra",
97    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
98    model_dijkstra_create, model_dijkstra_both_end},
99   {"DijkstraCache",
100    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
101    model_dijkstracache_create, model_dijkstra_both_end},
102   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
103    model_none_create,  NULL},
104   {"Vivaldi", "Vivaldi routing",
105    model_vivaldi_create, NULL},
106   {"Cluster", "Cluster routing",
107    model_cluster_create, NULL},
108   {NULL, NULL, NULL, NULL}
109 };
110
111 /**
112  * \brief Add a "host_link" to the network element list
113  */
114 static void parse_S_host_link(sg_platf_host_link_cbarg_t host)
115 {
116   RoutingEdgePtr info = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL));
117   xbt_assert(info, "Host '%s' not found!", host->id);
118   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
119       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
120       "You have to be in model Cluster to use tag host_link!");
121
122   s_surf_parsing_link_up_down_t link_up_down;
123   link_up_down.link_up = xbt_lib_get_or_null(link_lib, host->link_up, SURF_LINK_LEVEL);
124   link_up_down.link_down = xbt_lib_get_or_null(link_lib, host->link_down, SURF_LINK_LEVEL);
125   link_up_down.limiter_link = NULL;
126   link_up_down.loopback_link = NULL;
127
128   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
129   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
130
131   if(!current_routing->p_linkUpDownList)
132     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
133
134   // If dynar is is greater than edge id and if the host_link is already defined
135   if((int)xbt_dynar_length(current_routing->p_linkUpDownList) > info->m_id &&
136       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->m_id, void*))
137     xbt_die("Host_link for '%s' is already defined!",host->id);
138
139   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->p_name, info->m_id);
140   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->m_id, s_surf_parsing_link_up_down_t, link_up_down);
141 }
142
143 /**
144  * \brief Add a "host" to the network element list
145  */
146 static void parse_S_host(sg_platf_host_cbarg_t host)
147 {
148   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
149     current_routing->p_hierarchy = SURF_ROUTING_BASE;
150   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
151              "Reading a host, processing unit \"%s\" already exists", host->id);
152
153   RoutingEdgePtr info = new RoutingEdge();
154   info->p_rcComponent = current_routing;
155   info->p_rcType = SURF_NETWORK_ELEMENT_HOST;
156   info->p_name = xbt_strdup(host->id);
157   info->m_id = current_routing->parsePU(info);
158   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
159   XBT_DEBUG("Having set name '%s' id '%d'", host->id, info->m_id);
160
161   if(mount_list){
162     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
163     mount_list = NULL;
164   }
165
166   if (host->coord && strcmp(host->coord, "")) {
167     unsigned int cursor;
168     char*str;
169
170     if (!COORD_HOST_LEVEL)
171       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
172     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
173     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
174     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
175     xbt_dynar_foreach(ctn_str,cursor, str) {
176       double val = atof(str);
177       xbt_dynar_push(ctn,&val);
178     }
179     xbt_dynar_shrink(ctn, 0);
180     xbt_dynar_free(&ctn_str);
181     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
182     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
183   }
184 }
185
186 /**
187  * \brief Add a "router" to the network element list
188  */
189 static void parse_S_router(sg_platf_router_cbarg_t router)
190 {
191   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
192     current_routing->p_hierarchy = SURF_ROUTING_BASE;
193   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
194              "Reading a router, processing unit \"%s\" already exists",
195              router->id);
196
197   RoutingEdgePtr info = new RoutingEdge();
198   info->p_rcComponent = current_routing;
199   info->p_rcType = SURF_NETWORK_ELEMENT_ROUTER;
200   info->p_name = xbt_strdup(router->id);
201   info->m_id = current_routing->parsePU(info);
202   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
203   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->m_id);
204
205   if (router->coord && strcmp(router->coord, "")) {
206     unsigned int cursor;
207     char*str;
208
209     if (!COORD_ASR_LEVEL)
210       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
211     /* Pre-parse the host coordinates */
212     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
213     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
214     xbt_dynar_foreach(ctn_str,cursor, str) {
215       double val = atof(str);
216       xbt_dynar_push(ctn,&val);
217     }
218     xbt_dynar_shrink(ctn, 0);
219     xbt_dynar_free(&ctn_str);
220     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
221     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
222   }
223 }
224
225 /**
226  * \brief Store the route by calling the set_route function of the current routing component
227  */
228 static void parse_E_route(sg_platf_route_cbarg_t route)
229 {
230   /*FIXME:REMOVE:xbt_assert(current_routing->parse_route,
231              "no defined method \"set_route\" in \"%s\"",
232              current_routing->name);*/
233
234   current_routing->parseRoute(route);
235 }
236
237 /**
238  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
239  */
240 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
241 {
242   /*FIXME:REMOVE:xbt_assert(current_routing->parse_ASroute,
243              "no defined method \"set_ASroute\" in \"%s\"",
244              current_routing->name);*/
245   current_routing->parseASroute(ASroute);
246 }
247
248 /**
249  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
250  */
251 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
252 {
253   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
254              "Bypassing mechanism not implemented by routing '%s'",
255              current_routing->name);*/
256
257   current_routing->parseBypassroute(route);
258 }
259
260 /**
261  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
262  */
263 static void parse_E_bypassASroute(sg_platf_route_cbarg_t ASroute)
264 {
265   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
266              "Bypassing mechanism not implemented by routing '%s'",
267              current_routing->name);*/
268   current_routing->parseBypassroute(ASroute);
269 }
270
271 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
272 {
273   tmgr_trace_t tmgr_trace;
274   if (!trace->file || strcmp(trace->file, "") != 0) {
275     tmgr_trace = tmgr_trace_new_from_file(trace->file);
276   } else if (strcmp(trace->pc_data, "") == 0) {
277     tmgr_trace = NULL;
278   } else {
279     tmgr_trace =
280           tmgr_trace_new_from_string(trace->id, trace->pc_data,
281                                      trace->periodicity);
282   }
283   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
284 }
285
286 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
287 {
288   xbt_assert(xbt_dict_get_or_null
289               (traces_set_list, trace_connect->trace),
290               "Cannot connect trace %s to %s: trace unknown",
291               trace_connect->trace,
292               trace_connect->element);
293
294   switch (trace_connect->kind) {
295   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
296     xbt_dict_set(trace_connect_list_host_avail,
297         trace_connect->trace,
298         xbt_strdup(trace_connect->element), NULL);
299     break;
300   case SURF_TRACE_CONNECT_KIND_POWER:
301     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
302         xbt_strdup(trace_connect->element), NULL);
303     break;
304   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
305     xbt_dict_set(trace_connect_list_link_avail,
306         trace_connect->trace,
307         xbt_strdup(trace_connect->element), NULL);
308     break;
309   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
310     xbt_dict_set(trace_connect_list_bandwidth,
311         trace_connect->trace,
312         xbt_strdup(trace_connect->element), NULL);
313     break;
314   case SURF_TRACE_CONNECT_KIND_LATENCY:
315     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
316         xbt_strdup(trace_connect->element), NULL);
317     break;
318   default:
319     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
320         trace_connect->trace, trace_connect->element);
321     break;
322   }
323 }
324
325 /**
326  * \brief Make a new routing component to the platform
327  *
328  * Add a new autonomous system to the platform. Any elements (such as host,
329  * router or sub-AS) added after this call and before the corresponding call
330  * to sg_platf_new_AS_close() will be added to this AS.
331  *
332  * Once this function was called, the configuration concerning the used
333  * models cannot be changed anymore.
334  *
335  * @param AS_id name of this autonomous system. Must be unique in the platform
336  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
337  */
338 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
339 {
340   XBT_DEBUG("routing_AS_begin");
341   routing_model_description_t model = NULL;
342
343   xbt_assert(!xbt_lib_get_or_null
344              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
345              "The AS \"%s\" already exists", AS->id);
346
347   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
348                             * controlling the level of configuration to prevent
349                             * any further config */
350
351   /* search the routing model */
352   switch(AS->routing){
353     case A_surfxml_AS_routing_Cluster:       model = &routing_models[SURF_MODEL_CLUSTER];break;
354     case A_surfxml_AS_routing_Dijkstra:      model = &routing_models[SURF_MODEL_DIJKSTRA];break;
355     case A_surfxml_AS_routing_DijkstraCache: model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
356     case A_surfxml_AS_routing_Floyd:         model = &routing_models[SURF_MODEL_FLOYD];break;
357     case A_surfxml_AS_routing_Full:          model = &routing_models[SURF_MODEL_FULL];break;
358     case A_surfxml_AS_routing_None:          model = &routing_models[SURF_MODEL_NONE];break;
359     case A_surfxml_AS_routing_Vivaldi:       model = &routing_models[SURF_MODEL_VIVALDI];break;
360     default: xbt_die("Not a valid model!!!");
361     break;
362   }
363
364   /* make a new routing component */
365   AsPtr new_as = model->create();
366
367   new_as->p_modelDesc = model;
368   new_as->p_hierarchy = SURF_ROUTING_NULL;
369   new_as->p_name = xbt_strdup(AS->id);
370
371   RoutingEdgePtr info = new RoutingEdge();
372
373   if (current_routing == NULL && routing_platf->p_root == NULL) {
374
375     /* it is the first one */
376     new_as->p_routingFather = NULL;
377     routing_platf->p_root = new_as;
378     info->m_id = -1;
379   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
380
381     xbt_assert(!xbt_dict_get_or_null
382                (current_routing->p_routingSons, AS->id),
383                "The AS \"%s\" already exists", AS->id);
384     /* it is a part of the tree */
385     new_as->p_routingFather = current_routing;
386     /* set the father behavior */
387     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
388       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
389     /* add to the sons dictionary */
390     xbt_dict_set(current_routing->p_routingSons, AS->id,
391                  (void *) new_as, NULL);
392     /* add to the father element list */
393     info->m_id = current_routing->parseAS(info);
394   } else {
395     THROWF(arg_error, 0, "All defined components must be belong to a AS");
396   }
397
398   info->p_rcComponent = new_as->p_routingFather;
399   info->p_rcType = SURF_NETWORK_ELEMENT_AS;
400   info->p_name = new_as->p_name;
401
402   xbt_lib_set(as_router_lib, info->p_name, ROUTING_ASR_LEVEL,
403               (void *) info);
404   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->m_id);
405
406   /* set the new current component of the tree */
407   current_routing = new_as;
408   current_routing->p_netElem = info;
409
410 }
411
412 /**
413  * \brief Specify that the current description of AS is finished
414  *
415  * Once you've declared all the content of your AS, you have to close
416  * it with this call. Your AS is not usable until you call this function.
417  *
418  * @fixme: this call is not as robust as wanted: bad things WILL happen
419  * if you call it twice for the same AS, or if you forget calling it, or
420  * even if you add stuff to a closed AS
421  *
422  */
423 void routing_AS_end(sg_platf_AS_cbarg_t AS)
424 {
425
426   if (current_routing == NULL) {
427     THROWF(arg_error, 0, "Close an AS, but none was under construction");
428   } else {
429     if (current_routing->p_modelDesc->end)
430       current_routing->p_modelDesc->end(current_routing);
431     current_routing = current_routing->p_routingFather;
432   }
433 }
434
435 /* Aux Business methods */
436
437 /**
438  * \brief Get the AS father and the first elements of the chain
439  *
440  * \param src the source host name
441  * \param dst the destination host name
442  *
443  * Get the common father of the to processing units, and the first different
444  * father in the chain
445  */
446 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
447                             AS_t * res_father,
448                             AS_t * res_src,
449                             AS_t * res_dst)
450 {
451   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
452 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
453   AsPtr src_as, dst_as;
454   AsPtr path_src[ELEMENTS_FATHER_MAXDEPTH];
455   AsPtr path_dst[ELEMENTS_FATHER_MAXDEPTH];
456   int index_src = 0;
457   int index_dst = 0;
458   AsPtr current;
459   AsPtr current_src;
460   AsPtr current_dst;
461   AsPtr father;
462
463   /* (1) find the as where the src and dst are located */
464   sg_routing_edge_t src_data = src;
465   sg_routing_edge_t dst_data = dst;
466   src_as = src_data->p_rcComponent;
467   dst_as = dst_data->p_rcComponent;
468 #ifndef NDEBUG
469   char* src_name = src_data->p_name;
470   char* dst_name = dst_data->p_name;
471 #endif
472
473   xbt_assert(src_as && dst_as,
474              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
475
476   /* (2) find the path to the root routing component */
477   for (current = src_as; current != NULL; current = current->p_routingFather) {
478     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
479       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
480     path_src[index_src++] = current;
481   }
482   for (current = dst_as; current != NULL; current = current->p_routingFather) {
483     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
484       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
485     path_dst[index_dst++] = current;
486   }
487
488   /* (3) find the common father */
489   do {
490     current_src = path_src[--index_src];
491     current_dst = path_dst[--index_dst];
492   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
493
494   /* (4) they are not in the same routing component, make the path */
495   if (current_src == current_dst)
496     father = current_src;
497   else
498     father = path_src[index_src + 1];
499
500   /* (5) result generation */
501   *res_father = father;         /* first the common father of src and dst */
502   *res_src = current_src;       /* second the first different father of src */
503   *res_dst = current_dst;       /* three  the first different father of dst */
504
505 #undef ELEMENTS_FATHER_MAXDEPTH
506 }
507
508 /* Global Business methods */
509
510 /**
511  * \brief Recursive function for get_route_latency
512  *
513  * \param src the source host name
514  * \param dst the destination host name
515  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
516  * \param *latency the latency, if needed
517  *
518  * This function is called by "get_route" and "get_latency". It allows to walk
519  * recursively through the ASes tree.
520  */
521 static void _get_route_and_latency(RoutingEdgePtr src, RoutingEdgePtr dst,
522                                    xbt_dynar_t * links, double *latency)
523 {
524   s_sg_platf_route_cbarg_t route;
525   memset(&route,0,sizeof(route));
526
527   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
528   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->p_name, dst->p_name);
529
530   /* Find how src and dst are interconnected */
531   AsPtr common_father, src_father, dst_father;
532   elements_father(src, dst, &common_father, &src_father, &dst_father);
533   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
534       common_father->p_name, src_father->p_name, dst_father->p_name);
535
536   /* Check whether a direct bypass is defined */
537   sg_platf_route_cbarg_t e_route_bypass = NULL;
538   //FIXME:REMOVE:if (common_father->get_bypass_route)
539
540   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
541
542   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
543   if (e_route_bypass) {
544     xbt_dynar_merge(links, &e_route_bypass->link_list);
545     //FIXME:generic_free_route(e_route_bypass);
546     return;
547   }
548
549   /* If src and dst are in the same AS, life is good */
550   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
551     route.link_list = *links;
552     common_father->getRouteAndLatency(src, dst, &route, latency);
553     // if vivaldi latency+=vivaldi(src,dst)
554     return;
555   }
556
557   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
558
559   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
560   // Find the net_card corresponding to father
561   RoutingEdgePtr src_father_net_elm = src_father->p_netElem;
562   RoutingEdgePtr dst_father_net_elm = dst_father->p_netElem;
563
564   common_father->getRouteAndLatency(src_father_net_elm, dst_father_net_elm,
565                                     &route, latency);
566
567   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
568       "bad gateways for route from \"%s\" to \"%s\"", src->p_name, dst->p_name);
569
570   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
571   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
572
573   /* If source gateway is not our source, we have to recursively find our way up to this point */
574   if (src != src_gateway_net_elm)
575     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
576   xbt_dynar_merge(links, &route.link_list);
577
578   /* If dest gateway is not our destination, we have to recursively find our way from this point */
579   if (dst_gateway_net_elm != dst)
580     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
581
582   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
583 }
584
585 AS_t surf_platf_get_root(routing_platf_t platf){
586   return platf->p_root;
587 }
588
589 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_routing_edge_t edge){
590   return edge->p_rcType;
591 }
592
593
594 /**
595  * \brief Find a route between hosts
596  *
597  * \param src the network_element_t for src host
598  * \param dst the network_element_t for dst host
599  * \param route where to store the list of links.
600  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
601  * \param latency where to store the latency experienced on the path (or NULL if not interested)
602  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
603  * \pre route!=NULL
604  *
605  * walk through the routing components tree and find a route between hosts
606  * by calling the differents "get_route" functions in each routing component.
607  */
608 void RoutingPlatf::getRouteAndLatency(RoutingEdgePtr src, RoutingEdgePtr dst,
609                                    xbt_dynar_t* route, double *latency)
610 {
611   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->p_name, dst->p_name);
612   if (!*route) {
613     xbt_dynar_reset(routing_platf->p_lastRoute);
614     *route = routing_platf->p_lastRoute;
615   }
616
617   _get_route_and_latency(src, dst, route, latency);
618
619   xbt_assert(!latency || *latency >= 0.0,
620              "negative latency on route between \"%s\" and \"%s\"", src->p_name, dst->p_name);
621 }
622
623 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
624   return recursiveGetOneLinkRoutes(p_root);
625 }
626
627 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(AsPtr rc)
628 {
629   xbt_dynar_t ret = xbt_dynar_new(sizeof(OnelinkPtr), xbt_free);
630
631   //adding my one link routes
632   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
633   if (onelink_mine)
634     xbt_dynar_merge(&ret,&onelink_mine);
635
636   //recursing
637   char *key;
638   xbt_dict_cursor_t cursor = NULL;
639   AS_t rc_child;
640   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
641     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
642     if (onelink_child)
643       xbt_dynar_merge(&ret,&onelink_child);
644   }
645   return ret;
646 }
647
648 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
649 {
650   RoutingEdgePtr rc = sg_routing_edge_by_name_or_null(name);
651   if (rc)
652     return rc->p_rcType;
653
654   return SURF_NETWORK_ELEMENT_NULL;
655 }
656
657 /**
658  * \brief Generic method: create the global routing schema
659  *
660  * Make a global routing structure and set all the parsing functions.
661  */
662 void routing_model_create( void *loopback)
663 {
664   /* config the uniq global routing */
665   routing_platf = new RoutingPlatf();
666   routing_platf->p_root = NULL;
667   routing_platf->p_loopback = loopback;
668   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
669   /* no current routing at moment */
670   current_routing = NULL;
671 }
672
673
674 /* ************************************************** */
675 /* ********** PATERN FOR NEW ROUTING **************** */
676
677 /* The minimal configuration of a new routing model need the next functions,
678  * also you need to set at the start of the file, the new model in the model
679  * list. Remember keep the null ending of the list.
680  */
681 /*** Routing model structure ***/
682 // typedef struct {
683 //   s_routing_component_t generic_routing;
684 //   /* things that your routing model need */
685 // } s_routing_component_NEW_t,*routing_component_NEW_t;
686
687 /*** Parse routing model functions ***/
688 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
689 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
690 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
691 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
692 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
693
694 /*** Business methods ***/
695 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
696 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
697 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
698
699 /*** Creation routing model functions ***/
700 // static void* model_NEW_create(void) {
701 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
702 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
703 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
704 //   new_component->generic_routing.set_route = model_NEW_set_route;
705 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
706 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
707 //   new_component->generic_routing.get_route = NEW_get_route;
708 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
709 //   new_component->generic_routing.finalize = NEW_finalize;
710 //   /* initialization of internal structures */
711 //   return new_component;
712 // } /* mandatory */
713 // static void  model_NEW_load(void) {}   /* mandatory */
714 // static void  model_NEW_unload(void) {} /* mandatory */
715 // static void  model_NEW_end(void) {}    /* mandatory */
716
717 /* ************************************************************************** */
718 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
719
720 void routing_cluster_add_backbone(void* bb) {
721   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
722         "You have to be in model Cluster to use tag backbone!");
723   xbt_assert(!surf_as_cluster_get_backbone(current_routing), "The backbone link is already defined!");
724   surf_as_cluster_set_backbone(current_routing, bb);
725   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
726 }
727
728 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
729 {
730   int start, end, i;
731   char *groups , *host_id , *link_id = NULL;
732   unsigned int iter;
733   xbt_dynar_t radical_elements;
734   xbt_dynar_t radical_ends;
735
736   //Make all hosts
737   radical_elements = xbt_str_split(cabinet->radical, ",");
738   xbt_dynar_foreach(radical_elements, iter, groups) {
739
740     radical_ends = xbt_str_split(groups, "-");
741     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
742
743     switch (xbt_dynar_length(radical_ends)) {
744     case 1:
745       end = start;
746       break;
747     case 2:
748       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
749       break;
750     default:
751       surf_parse_error("Malformed radical");
752       break;
753     }
754     s_sg_platf_host_cbarg_t host;
755     memset(&host, 0, sizeof(host));
756     host.initial_state = SURF_RESOURCE_ON;
757     host.pstate = 0;
758     host.power_scale = 1.0;
759     host.core_amount = 1;
760
761     s_sg_platf_link_cbarg_t link;
762     memset(&link, 0, sizeof(link));
763     link.state = SURF_RESOURCE_ON;
764     link.policy = SURF_LINK_FULLDUPLEX;
765     link.latency = cabinet->lat;
766     link.bandwidth = cabinet->bw;
767
768     s_sg_platf_host_link_cbarg_t host_link;
769     memset(&host_link, 0, sizeof(host_link));
770
771     for (i = start; i <= end; i++) {
772       host_id = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
773       link_id = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
774       host.id = host_id;
775       link.id = link_id;
776       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
777       xbt_dynar_push(power_state_list,&cabinet->power);
778       host.power_peak = power_state_list;
779       sg_platf_new_host(&host);
780       sg_platf_new_link(&link);
781
782       char* link_up = bprintf("%s_UP",link_id);
783       char* link_down = bprintf("%s_DOWN",link_id);
784       host_link.id = host_id;
785       host_link.link_up = link_up;
786       host_link.link_down= link_down;
787       sg_platf_new_host_link(&host_link);
788
789       free(host_id);
790       free(link_id);
791       free(link_up);
792       free(link_down);
793     }
794
795     xbt_dynar_free(&radical_ends);
796   }
797   xbt_dynar_free(&radical_elements);
798 }
799
800 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
801 {
802   char *host_id, *groups, *link_id = NULL;
803   xbt_dict_t patterns = NULL;
804
805   s_sg_platf_host_cbarg_t host;
806   s_sg_platf_link_cbarg_t link;
807
808   unsigned int iter;
809   int start, end, i;
810   xbt_dynar_t radical_elements;
811   xbt_dynar_t radical_ends;
812
813   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
814       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
815     patterns = xbt_dict_new_homogeneous(xbt_free_f);
816     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
817     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
818     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
819   }
820
821   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
822   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
823   AS.id = cluster->id;
824   AS.routing = A_surfxml_AS_routing_Cluster;
825   sg_platf_new_AS_begin(&AS);
826
827   current_routing->p_linkUpDownList
828             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
829
830   //Make all hosts
831   radical_elements = xbt_str_split(cluster->radical, ",");
832   xbt_dynar_foreach(radical_elements, iter, groups) {
833
834     radical_ends = xbt_str_split(groups, "-");
835     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
836
837     switch (xbt_dynar_length(radical_ends)) {
838     case 1:
839       end = start;
840       break;
841     case 2:
842       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
843       break;
844     default:
845       surf_parse_error("Malformed radical");
846       break;
847     }
848     for (i = start; i <= end; i++) {
849       host_id =
850           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
851       link_id = bprintf("%s_link_%d", cluster->id, i);
852
853       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
854
855       memset(&host, 0, sizeof(host));
856       host.id = host_id;
857       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
858         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
859         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
860         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
861         host.power_trace = tmgr_trace_new_from_file(avail_file);
862         xbt_free(avail_file);
863       } else {
864         XBT_DEBUG("\tavailability_file=\"\"");
865       }
866
867       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
868         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
869         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
870         host.state_trace = tmgr_trace_new_from_file(avail_file);
871         xbt_free(avail_file);
872       } else {
873         XBT_DEBUG("\tstate_file=\"\"");
874       }
875
876       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
877       xbt_dynar_push(power_state_list,&cluster->power);
878       host.power_peak = power_state_list;
879       host.pstate = 0;
880
881       //host.power_peak = cluster->power;
882       host.power_scale = 1.0;
883       host.core_amount = cluster->core_amount;
884       host.initial_state = SURF_RESOURCE_ON;
885       host.coord = "";
886       sg_platf_new_host(&host);
887       XBT_DEBUG("</host>");
888
889       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
890                 cluster->bw, cluster->lat);
891
892       memset(&link, 0, sizeof(link));
893       link.id = link_id;
894       link.bandwidth = cluster->bw;
895       link.latency = cluster->lat;
896       link.state = SURF_RESOURCE_ON;
897       link.policy = cluster->sharing_policy;
898       sg_platf_new_link(&link);
899
900       s_surf_parsing_link_up_down_t info;
901
902       if (link.policy == SURF_LINK_FULLDUPLEX) {
903         char *tmp_link = bprintf("%s_UP", link_id);
904         info.link_up =
905             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
906         free(tmp_link);
907         tmp_link = bprintf("%s_DOWN", link_id);
908         info.link_down =
909             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
910         free(tmp_link);
911       } else {
912         info.link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
913         info.link_down = info.link_up;
914       }
915
916       if(cluster->limiter_link!=0){
917         char *tmp_link = bprintf("%s_limiter", link_id);
918         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
919                 cluster->limiter_link);
920
921
922         memset(&link, 0, sizeof(link));
923         link.id = tmp_link;
924         link.bandwidth = cluster->limiter_link;
925         link.latency = 0;
926         link.state = SURF_RESOURCE_ON;
927         link.policy = SURF_LINK_SHARED;
928         sg_platf_new_link(&link);
929          info.limiter_link =
930             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
931         free(tmp_link);
932       }else{
933         info.limiter_link =NULL;
934       }
935
936       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
937         char *tmp_link = bprintf("%s_loopback", link_id);
938         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
939                 cluster->limiter_link);
940
941
942         memset(&link, 0, sizeof(link));
943         link.id = tmp_link;
944         link.bandwidth = cluster->loopback_bw;
945         link.latency = cluster->loopback_lat;
946         link.state = SURF_RESOURCE_ON;
947         link.policy = SURF_LINK_FATPIPE;
948         sg_platf_new_link(&link);
949          info.loopback_link =
950             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
951         free(tmp_link);
952       }else{
953         info.loopback_link =NULL;
954       }
955
956       xbt_dynar_push(current_routing->p_linkUpDownList, &info);
957       xbt_free(link_id);
958       xbt_free(host_id);
959     }
960
961     xbt_dynar_free(&radical_ends);
962   }
963   xbt_dynar_free(&radical_elements);
964
965   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
966   // and it's very useful to connect clusters together
967   XBT_DEBUG(" ");
968   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
969   char *newid = NULL;
970   s_sg_platf_router_cbarg_t router;
971   memset(&router, 0, sizeof(router));
972   router.id = cluster->router_id;
973   router.coord = "";
974   if (!router.id || !strcmp(router.id, ""))
975     router.id = newid =
976         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
977                 cluster->suffix);
978   sg_platf_new_router(&router);
979   ((AsClusterPtr)current_routing)->p_router = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
980   free(newid);
981
982   //Make the backbone
983   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
984     char *link_backbone = bprintf("%s_backbone", cluster->id);
985     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
986               cluster->bb_bw, cluster->bb_lat);
987
988     memset(&link, 0, sizeof(link));
989     link.id = link_backbone;
990     link.bandwidth = cluster->bb_bw;
991     link.latency = cluster->bb_lat;
992     link.state = SURF_RESOURCE_ON;
993     link.policy = cluster->bb_sharing_policy;
994
995     sg_platf_new_link(&link);
996
997     routing_cluster_add_backbone(xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
998
999     free(link_backbone);
1000   }
1001
1002   XBT_DEBUG("</AS>");
1003   sg_platf_new_AS_end();
1004   XBT_DEBUG(" ");
1005   xbt_dict_free(&patterns); // no op if it were never set
1006 }
1007
1008 static void routing_parse_postparse(void) {
1009   xbt_dict_free(&random_value);
1010 }
1011
1012 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1013 {
1014   char *host_id = NULL;
1015   char *link_id = NULL;
1016   char *router_id = NULL;
1017
1018   XBT_DEBUG(" ");
1019   host_id = HOST_PEER(peer->id);
1020   link_id = LINK_PEER(peer->id);
1021   router_id = ROUTER_PEER(peer->id);
1022
1023   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1024   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1025   AS.id = peer->id;
1026   AS.routing = A_surfxml_AS_routing_Cluster;
1027   sg_platf_new_AS_begin(&AS);
1028
1029   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1030
1031   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1032   s_sg_platf_host_cbarg_t host;
1033   memset(&host, 0, sizeof(host));
1034   host.initial_state = SURF_RESOURCE_ON;
1035   host.id = host_id;
1036
1037   xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
1038   xbt_dynar_push(power_state_list,&peer->power);
1039   host.power_peak = power_state_list;
1040   host.pstate = 0;
1041   //host.power_peak = peer->power;
1042   host.power_scale = 1.0;
1043   host.power_trace = peer->availability_trace;
1044   host.state_trace = peer->state_trace;
1045   host.core_amount = 1;
1046   sg_platf_new_host(&host);
1047
1048   s_sg_platf_link_cbarg_t link;
1049   memset(&link, 0, sizeof(link));
1050   link.state = SURF_RESOURCE_ON;
1051   link.policy = SURF_LINK_SHARED;
1052   link.latency = peer->lat;
1053
1054   char* link_up = bprintf("%s_UP",link_id);
1055   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1056             peer->bw_out, peer->lat);
1057   link.id = link_up;
1058   link.bandwidth = peer->bw_out;
1059   sg_platf_new_link(&link);
1060
1061   char* link_down = bprintf("%s_DOWN",link_id);
1062   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1063             peer->bw_in, peer->lat);
1064   link.id = link_down;
1065   link.bandwidth = peer->bw_in;
1066   sg_platf_new_link(&link);
1067
1068   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1069   s_sg_platf_host_link_cbarg_t host_link;
1070   memset(&host_link, 0, sizeof(host_link));
1071   host_link.id = host_id;
1072   host_link.link_up = link_up;
1073   host_link.link_down= link_down;
1074   sg_platf_new_host_link(&host_link);
1075
1076   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1077   s_sg_platf_router_cbarg_t router;
1078   memset(&router, 0, sizeof(router));
1079   router.id = router_id;
1080   router.coord = peer->coord;
1081   sg_platf_new_router(&router);
1082   static_cast<AsClusterPtr>(current_routing)->p_router = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1083
1084   XBT_DEBUG("</AS>");
1085   sg_platf_new_AS_end();
1086   XBT_DEBUG(" ");
1087
1088   //xbt_dynar_free(&tab_elements_num);
1089   free(router_id);
1090   free(host_id);
1091   free(link_id);
1092   free(link_up);
1093   free(link_down);
1094 }
1095
1096 static void routing_parse_Srandom(void)
1097 {
1098   double mean, std, min, max, seed;
1099   char *random_id = A_surfxml_random_id;
1100   char *random_radical = A_surfxml_random_radical;
1101   char *rd_name = NULL;
1102   char *rd_value;
1103   mean = surf_parse_get_double(A_surfxml_random_mean);
1104   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1105   min = surf_parse_get_double(A_surfxml_random_min);
1106   max = surf_parse_get_double(A_surfxml_random_max);
1107   seed = surf_parse_get_double(A_surfxml_random_seed);
1108
1109   double res = 0;
1110   int i = 0;
1111   random_data_t random = xbt_new0(s_random_data_t, 1);
1112   char *tmpbuf;
1113
1114   xbt_dynar_t radical_elements;
1115   unsigned int iter;
1116   char *groups;
1117   int start, end;
1118   xbt_dynar_t radical_ends;
1119
1120   switch (A_surfxml_random_generator) {
1121   case AU_surfxml_random_generator:
1122   case A_surfxml_random_generator_NONE:
1123     random->generator = NONE;
1124     break;
1125   case A_surfxml_random_generator_DRAND48:
1126     random->generator = DRAND48;
1127     break;
1128   case A_surfxml_random_generator_RAND:
1129     random->generator = RAND;
1130     break;
1131   case A_surfxml_random_generator_RNGSTREAM:
1132     random->generator = RNGSTREAM;
1133     break;
1134   default:
1135     surf_parse_error("Invalid random generator");
1136     break;
1137   }
1138   random->seed = seed;
1139   random->min = min;
1140   random->max = max;
1141
1142   /* Check user stupidities */
1143   if (max < min)
1144     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1145   if (mean < min)
1146     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1147   if (mean > max)
1148     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1149
1150   /* normalize the mean and standard deviation before storing */
1151   random->mean = (mean - min) / (max - min);
1152   random->std = std / (max - min);
1153
1154   if (random->mean * (1 - random->mean) < random->std * random->std)
1155     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1156            random->mean, random->std);
1157
1158   XBT_DEBUG
1159       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1160        random_id, random->min, random->max, random->mean, random->std,
1161        (int)random->generator, random->seed, random_radical);
1162
1163   if (!random_value)
1164     random_value = xbt_dict_new_homogeneous(free);
1165
1166   if (!strcmp(random_radical, "")) {
1167     res = random_generate(random);
1168     rd_value = bprintf("%f", res);
1169     xbt_dict_set(random_value, random_id, rd_value, NULL);
1170   } else {
1171     radical_elements = xbt_str_split(random_radical, ",");
1172     xbt_dynar_foreach(radical_elements, iter, groups) {
1173       radical_ends = xbt_str_split(groups, "-");
1174       switch (xbt_dynar_length(radical_ends)) {
1175       case 1:
1176         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1177                    "Custom Random '%s' already exists !", random_id);
1178         res = random_generate(random);
1179         tmpbuf =
1180             bprintf("%s%d", random_id,
1181                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1182         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1183         xbt_free(tmpbuf);
1184         break;
1185
1186       case 2:
1187         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1188         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1189         for (i = start; i <= end; i++) {
1190           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1191                      "Custom Random '%s' already exists !", bprintf("%s%d",
1192                                                                     random_id,
1193                                                                     i));
1194           res = random_generate(random);
1195           tmpbuf = bprintf("%s%d", random_id, i);
1196           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1197           xbt_free(tmpbuf);
1198         }
1199         break;
1200       default:
1201         XBT_CRITICAL("Malformed radical");
1202         break;
1203       }
1204       res = random_generate(random);
1205       rd_name = bprintf("%s_router", random_id);
1206       rd_value = bprintf("%f", res);
1207       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1208
1209       xbt_dynar_free(&radical_ends);
1210     }
1211     free(rd_name);
1212     xbt_dynar_free(&radical_elements);
1213   }
1214 }
1215
1216 void routing_register_callbacks()
1217 {
1218   sg_platf_host_add_cb(parse_S_host);
1219   sg_platf_router_add_cb(parse_S_router);
1220   sg_platf_host_link_add_cb(parse_S_host_link);
1221   sg_platf_route_add_cb(parse_E_route);
1222   sg_platf_ASroute_add_cb(parse_E_ASroute);
1223   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1224   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1225
1226   sg_platf_cluster_add_cb(routing_parse_cluster);
1227   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1228
1229   sg_platf_peer_add_cb(routing_parse_peer);
1230   sg_platf_postparse_add_cb(routing_parse_postparse);
1231
1232   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1233   sg_platf_AS_end_add_cb(routing_AS_end);
1234   sg_platf_AS_begin_add_cb(routing_AS_begin);
1235
1236   sg_platf_trace_add_cb(routing_parse_trace);
1237   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1238
1239 #ifdef HAVE_TRACING
1240   instr_routing_define_callbacks();
1241 #endif
1242 }
1243
1244 /**
1245  * \brief Recursive function for finalize
1246  *
1247  * \param rc the source host name
1248  *
1249  * This fuction is call by "finalize". It allow to finalize the
1250  * AS or routing components. It delete all the structures.
1251  */
1252 static void finalize_rec(AsPtr as) {
1253   xbt_dict_cursor_t cursor = NULL;
1254   char *key;
1255   AS_t elem;
1256
1257   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1258     finalize_rec(elem);
1259   }
1260
1261   delete as;;
1262 }
1263
1264 /** \brief Frees all memory allocated by the routing module */
1265 void routing_exit(void) {
1266   if (!routing_platf)
1267     return;
1268   xbt_dynar_free(&routing_platf->p_lastRoute);
1269   finalize_rec(routing_platf->p_root);
1270   xbt_free(routing_platf);
1271 }
1272
1273 AS_t surf_AS_get_routing_root() {
1274   return routing_platf->p_root;
1275 }
1276
1277 const char *surf_AS_get_name(AsPtr as) {
1278   return as->p_name;
1279 }
1280
1281 xbt_dict_t surf_AS_get_routing_sons(AsPtr as) {
1282   return as->p_routingSons;
1283 }
1284
1285 const char *surf_AS_get_model(AsPtr as) {
1286   return as->p_modelDesc->name;
1287 }
1288
1289 xbt_dynar_t surf_AS_get_hosts(AsPtr as) {
1290   xbt_dynar_t elms = as->p_indexNetworkElm;
1291   sg_routing_edge_t relm;
1292   xbt_dictelm_t delm;
1293   int index;
1294   int count = xbt_dynar_length(elms);
1295   xbt_dynar_t res =  xbt_dynar_new(sizeof(xbt_dictelm_t), NULL);
1296   for (index = 0; index < count; index++) {
1297      relm = xbt_dynar_get_as(elms, index, RoutingEdgePtr);
1298      delm = xbt_lib_get_elm_or_null(host_lib, relm->p_name);
1299      if (delm!=NULL) {
1300        xbt_dynar_push(res, &delm);
1301      }
1302   }
1303   return res;
1304 }
1305
1306 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1307   as->getGraph(graph, nodes, edges);
1308 }
1309