Logo AND Algorithmique Numérique Distribuée

Public GIT Repository
cosmetics: inline a parsing function to unclutter the routing code
[simgrid.git] / src / surf / surf_routing.cpp
1 /* Copyright (c) 2009-2011, 2013-2015. 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 #include "surf_routing_cluster.hpp"
10 #include "surf_routing_cluster_torus.hpp"
11 #include "surf_routing_cluster_fat_tree.hpp"
12
13 #include "simgrid/platf_interface.h"    // platform creation API internal interface
14 #include "simgrid/sg_config.h"
15 #include "storage_interface.hpp"
16 #include "src/surf/platform.hpp"
17 #include "surf/surfxml_parse_values.h"
18
19 /*************
20  * Callbacks *
21  *************/
22
23 namespace simgrid {
24 namespace surf {
25
26 simgrid::xbt::signal<void(simgrid::surf::NetCard*)> netcardCreatedCallbacks;
27 simgrid::xbt::signal<void(simgrid::surf::As*)> asCreatedCallbacks;
28
29 }
30 }
31
32 /**
33  * @ingroup SURF_build_api
34  * @brief A library containing all known hosts
35  */
36 xbt_dict_t host_list;
37
38 int COORD_HOST_LEVEL=0;         //Coordinates level
39
40 int MSG_FILE_LEVEL;             //Msg file level
41
42 int SIMIX_STORAGE_LEVEL;        //Simix storage level
43 int MSG_STORAGE_LEVEL;          //Msg storage level
44
45 xbt_lib_t as_router_lib;
46 int ROUTING_ASR_LEVEL;          //Routing level
47 int COORD_ASR_LEVEL;            //Coordinates level
48 int NS3_ASR_LEVEL;              //host node for ns3
49 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
50
51 static xbt_dict_t random_value = NULL;
52
53
54 /** @brief Retrieve a netcard from its name
55  *
56  * Netcards are the thing that connect host or routers to the network
57  */
58 simgrid::surf::NetCard *sg_netcard_by_name_or_null(const char *name)
59 {
60   sg_host_t h = sg_host_by_name(name);
61   simgrid::surf::NetCard *net_elm = h==NULL?NULL: h->pimpl_netcard;
62   if (!net_elm)
63     net_elm = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
64   return net_elm;
65 }
66
67 /* Global vars */
68 simgrid::surf::RoutingPlatf *routing_platf = NULL;
69
70 /* global parse functions */
71 extern xbt_dynar_t mount_list;
72
73 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
74
75 /** The current AS in the parsing */
76 static simgrid::surf::As *current_routing = NULL;
77 simgrid::surf::As* routing_get_current()
78 {
79   return current_routing;
80 }
81
82 static void routing_parse_postparse(void);
83
84 /* this lines are only for replace use like index in the model table */
85 typedef enum {
86   SURF_MODEL_FULL = 0,
87   SURF_MODEL_FLOYD,
88   SURF_MODEL_DIJKSTRA,
89   SURF_MODEL_DIJKSTRACACHE,
90   SURF_MODEL_NONE,
91   SURF_MODEL_VIVALDI,
92   SURF_MODEL_CLUSTER,
93   SURF_MODEL_TORUS_CLUSTER,
94   SURF_MODEL_FAT_TREE_CLUSTER,
95 } e_routing_types;
96
97 struct s_model_type routing_models[] = {
98   {"Full",
99    "Full routing data (fast, large memory requirements, fully expressive)",
100    model_full_create, model_full_end},
101   {"Floyd",
102    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
103    model_floyd_create, model_floyd_end},
104   {"Dijkstra",
105    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
106    model_dijkstra_create, model_dijkstra_both_end},
107   {"DijkstraCache",
108    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
109    model_dijkstracache_create, model_dijkstra_both_end},
110   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
111    model_none_create,  NULL},
112   {"Vivaldi", "Vivaldi routing",
113    model_vivaldi_create, NULL},
114   {"Cluster", "Cluster routing",
115    model_cluster_create, NULL},
116   {"Torus_Cluster", "Torus Cluster routing",
117    model_torus_cluster_create, NULL},
118   {"Fat_Tree_Cluster", "Fat Tree Cluster routing",
119    model_fat_tree_cluster_create, NULL},
120   {NULL, NULL, NULL, NULL}
121 };
122
123 /**
124  * \brief Add a netcard connecting an host to the network element list
125  * FIXME: integrate into host constructor
126  */
127 void sg_platf_new_netcard(sg_platf_host_link_cbarg_t netcard)
128 {
129   simgrid::surf::NetCard *info = sg_host_by_name(netcard->id)->pimpl_netcard;
130   xbt_assert(info, "Host '%s' not found!", netcard->id);
131   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
132       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
133       "You have to be in model Cluster to use tag host_link!");
134
135   s_surf_parsing_link_up_down_t link_up_down;
136   link_up_down.link_up = Link::byName(netcard->link_up);
137   link_up_down.link_down = Link::byName(netcard->link_down);
138
139   xbt_assert(link_up_down.link_up, "Link '%s' not found!",netcard->link_up);
140   xbt_assert(link_up_down.link_down, "Link '%s' not found!",netcard->link_down);
141
142   if(!current_routing->p_linkUpDownList)
143     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
144
145   // If dynar is is greater than netcard id and if the host_link is already defined
146   if((int)xbt_dynar_length(current_routing->p_linkUpDownList) > info->getId() &&
147       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->getId(), void*))
148   surf_parse_error("Host_link for '%s' is already defined!",netcard->id);
149
150   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->getName(), info->getId());
151   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->getId(), s_surf_parsing_link_up_down_t, link_up_down);
152 }
153
154 void sg_platf_new_trace(sg_platf_trace_cbarg_t trace)
155 {
156   tmgr_trace_t tmgr_trace;
157   if (!trace->file || strcmp(trace->file, "") != 0) {
158     tmgr_trace = tmgr_trace_new_from_file(trace->file);
159   } else {
160     xbt_assert(strcmp(trace->pc_data, ""),
161         "Trace '%s' must have either a content, or point to a file on disk.",trace->id);
162     tmgr_trace = tmgr_trace_new_from_string(trace->id, trace->pc_data, trace->periodicity);
163   }
164   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
165 }
166
167 /**
168  * \brief Make a new routing component to the platform
169  *
170  * Add a new autonomous system to the platform. Any elements (such as host,
171  * router or sub-AS) added after this call and before the corresponding call
172  * to sg_platf_new_AS_close() will be added to this AS.
173  *
174  * Once this function was called, the configuration concerning the used
175  * models cannot be changed anymore.
176  *
177  * @param AS_id name of this autonomous system. Must be unique in the platform
178  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
179  */
180 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
181 {
182   XBT_DEBUG("routing_AS_begin");
183   routing_model_description_t model = NULL;
184
185   xbt_assert(!xbt_lib_get_or_null
186              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
187              "The AS \"%s\" already exists", AS->id);
188
189   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
190                             * controlling the level of configuration to prevent
191                             * any further config */
192
193   /* search the routing model */
194   switch(AS->routing){
195     case A_surfxml_AS_routing_Cluster:               model = &routing_models[SURF_MODEL_CLUSTER];break;
196     case A_surfxml_AS_routing_Cluster___torus:       model = &routing_models[SURF_MODEL_TORUS_CLUSTER];break;
197     case A_surfxml_AS_routing_Cluster___fat___tree:  model = &routing_models[SURF_MODEL_FAT_TREE_CLUSTER];break;
198     case A_surfxml_AS_routing_Dijkstra:              model = &routing_models[SURF_MODEL_DIJKSTRA];break;
199     case A_surfxml_AS_routing_DijkstraCache:         model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
200     case A_surfxml_AS_routing_Floyd:                 model = &routing_models[SURF_MODEL_FLOYD];break;
201     case A_surfxml_AS_routing_Full:                  model = &routing_models[SURF_MODEL_FULL];break;
202     case A_surfxml_AS_routing_None:                  model = &routing_models[SURF_MODEL_NONE];break;
203     case A_surfxml_AS_routing_Vivaldi:               model = &routing_models[SURF_MODEL_VIVALDI];break;
204     default: xbt_die("Not a valid model!!!");
205     break;
206   }
207
208   /* make a new routing component */
209   simgrid::surf::As *new_as = model->create();
210
211   new_as->p_modelDesc = model;
212   new_as->p_hierarchy = SURF_ROUTING_NULL;
213   new_as->p_name = xbt_strdup(AS->id);
214
215   simgrid::surf::NetCard *info =
216     new simgrid::surf::NetCardImpl(xbt_strdup(new_as->p_name),
217                                             -1,
218                                             SURF_NETWORK_ELEMENT_AS,
219                                             current_routing);
220   if (current_routing == NULL && routing_platf->p_root == NULL) {
221
222     /* it is the first one */
223     new_as->p_routingFather = NULL;
224     routing_platf->p_root = new_as;
225     info->setId(-1);
226   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
227
228     xbt_assert(!xbt_dict_get_or_null
229                (current_routing->p_routingSons, AS->id),
230                "The AS \"%s\" already exists", AS->id);
231     /* it is a part of the tree */
232     new_as->p_routingFather = current_routing;
233     /* set the father behavior */
234     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
235       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
236     /* add to the sons dictionary */
237     xbt_dict_set(current_routing->p_routingSons, AS->id,
238                  (void *) new_as, NULL);
239     /* add to the father element list */
240     info->setId(current_routing->parseAS(info));
241   } else {
242     THROWF(arg_error, 0, "All defined components must belong to a AS");
243   }
244
245   xbt_lib_set(as_router_lib, info->getName(), ROUTING_ASR_LEVEL,
246               (void *) info);
247   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->getId());
248
249   /* set the new current component of the tree */
250   current_routing = new_as;
251   current_routing->p_netcard = info;
252
253   simgrid::surf::netcardCreatedCallbacks(info);
254   simgrid::surf::asCreatedCallbacks(new_as);
255 }
256
257 /**
258  * \brief Specify that the current description of AS is finished
259  *
260  * Once you've declared all the content of your AS, you have to close
261  * it with this call. Your AS is not usable until you call this function.
262  *
263  * @fixme: this call is not as robust as wanted: bad things WILL happen
264  * if you call it twice for the same AS, or if you forget calling it, or
265  * even if you add stuff to a closed AS
266  *
267  */
268 void routing_AS_end()
269 {
270
271   if (current_routing == NULL) {
272     THROWF(arg_error, 0, "Close an AS, but none was under construction");
273   } else {
274     if (current_routing->p_modelDesc->end)
275       current_routing->p_modelDesc->end(current_routing);
276     current_routing = current_routing->p_routingFather;
277   }
278 }
279
280 /* Aux Business methods */
281
282 /**
283  * \brief Get the AS father and the first elements of the chain
284  *
285  * \param src the source host name
286  * \param dst the destination host name
287  *
288  * Get the common father of the to processing units, and the first different
289  * father in the chain
290  */
291 static void elements_father(sg_netcard_t src, sg_netcard_t dst,
292                             AS_t * res_father,
293                             AS_t * res_src,
294                             AS_t * res_dst)
295 {
296   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
297 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
298   simgrid::surf::As *src_as, *dst_as;
299   simgrid::surf::As *path_src[ELEMENTS_FATHER_MAXDEPTH];
300   simgrid::surf::As *path_dst[ELEMENTS_FATHER_MAXDEPTH];
301   int index_src = 0;
302   int index_dst = 0;
303   simgrid::surf::As *current;
304   simgrid::surf::As *current_src;
305   simgrid::surf::As *current_dst;
306   simgrid::surf::As *father;
307
308   /* (1) find the as where the src and dst are located */
309   sg_netcard_t src_data = src;
310   sg_netcard_t dst_data = dst;
311   src_as = src_data->getRcComponent();
312   dst_as = dst_data->getRcComponent();
313 #ifndef NDEBUG
314   char* src_name = src_data->getName();
315   char* dst_name = dst_data->getName();
316 #endif
317
318   xbt_assert(src_as && dst_as,
319              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
320
321   /* (2) find the path to the root routing component */
322   for (current = src_as; current != NULL; current = current->p_routingFather) {
323     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
324       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
325     path_src[index_src++] = current;
326   }
327   for (current = dst_as; current != NULL; current = current->p_routingFather) {
328     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
329       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
330     path_dst[index_dst++] = current;
331   }
332
333   /* (3) find the common father */
334   do {
335     current_src = path_src[--index_src];
336     current_dst = path_dst[--index_dst];
337   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
338
339   /* (4) they are not in the same routing component, make the path */
340   if (current_src == current_dst)
341     father = current_src;
342   else
343     father = path_src[index_src + 1];
344
345   /* (5) result generation */
346   *res_father = father;         /* first the common father of src and dst */
347   *res_src = current_src;       /* second the first different father of src */
348   *res_dst = current_dst;       /* three  the first different father of dst */
349
350 #undef ELEMENTS_FATHER_MAXDEPTH
351 }
352
353 /* Global Business methods */
354
355 /**
356  * \brief Recursive function for get_route_latency
357  *
358  * \param src the source host name
359  * \param dst the destination host name
360  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
361  * \param *latency the latency, if needed
362  *
363  * This function is called by "get_route" and "get_latency". It allows to walk
364  * recursively through the ASes tree.
365  */
366 static void _get_route_and_latency(
367   simgrid::surf::NetCard *src, simgrid::surf::NetCard *dst,
368   xbt_dynar_t * links, double *latency)
369 {
370   s_sg_platf_route_cbarg_t route = SG_PLATF_ROUTE_INITIALIZER;
371   memset(&route,0,sizeof(route));
372
373   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
374   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->getName(), dst->getName());
375
376   /* Find how src and dst are interconnected */
377   simgrid::surf::As *common_father, *src_father, *dst_father;
378   elements_father(src, dst, &common_father, &src_father, &dst_father);
379   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
380       common_father->p_name, src_father->p_name, dst_father->p_name);
381
382   /* Check whether a direct bypass is defined */
383   sg_platf_route_cbarg_t e_route_bypass = NULL;
384   //FIXME:REMOVE:if (common_father->get_bypass_route)
385
386   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
387
388   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
389   if (e_route_bypass) {
390     xbt_dynar_merge(links, &e_route_bypass->link_list);
391     generic_free_route(e_route_bypass);
392     return;
393   }
394
395   /* If src and dst are in the same AS, life is good */
396   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
397     route.link_list = *links;
398     common_father->getRouteAndLatency(src, dst, &route, latency);
399     // if vivaldi latency+=vivaldi(src,dst)
400     return;
401   }
402
403   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
404
405   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
406   // Find the net_card corresponding to father
407   simgrid::surf::NetCard *src_father_netcard = src_father->p_netcard;
408   simgrid::surf::NetCard *dst_father_netcard = dst_father->p_netcard;
409
410   common_father->getRouteAndLatency(src_father_netcard, dst_father_netcard,
411                                     &route, latency);
412
413   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
414       "bad gateways for route from \"%s\" to \"%s\"", src->getName(), dst->getName());
415
416   sg_netcard_t src_gateway_net_elm = route.gw_src;
417   sg_netcard_t dst_gateway_net_elm = route.gw_dst;
418
419   /* If source gateway is not our source, we have to recursively find our way up to this point */
420   if (src != src_gateway_net_elm)
421     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
422   xbt_dynar_merge(links, &route.link_list);
423
424   /* If dest gateway is not our destination, we have to recursively find our way from this point */
425   if (dst_gateway_net_elm != dst)
426     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
427
428 }
429
430 AS_t surf_platf_get_root(routing_platf_t platf){
431   return platf->p_root;
432 }
433
434 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_netcard_t netcard){
435   return netcard->getRcType();
436 }
437
438 namespace simgrid {
439 namespace surf {
440
441 /**
442  * \brief Find a route between hosts
443  *
444  * \param src the network_element_t for src host
445  * \param dst the network_element_t for dst host
446  * \param route where to store the list of links.
447  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
448  * \param latency where to store the latency experienced on the path (or NULL if not interested)
449  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
450  * \pre route!=NULL
451  *
452  * walk through the routing components tree and find a route between hosts
453  * by calling each "get_route" function in each routing component.
454  */
455 void RoutingPlatf::getRouteAndLatency(NetCard *src, NetCard *dst, xbt_dynar_t* route, double *latency)
456 {
457   XBT_DEBUG("getRouteAndLatency from %s to %s", src->getName(), dst->getName());
458   if (NULL == *route) {
459     xbt_dynar_reset(routing_platf->p_lastRoute);
460     *route = routing_platf->p_lastRoute;
461   }
462
463   _get_route_and_latency(src, dst, route, latency);
464
465   xbt_assert(!latency || *latency >= 0.0,
466              "negative latency on route between \"%s\" and \"%s\"", src->getName(), dst->getName());
467 }
468
469 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
470   return recursiveGetOneLinkRoutes(p_root);
471 }
472
473 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(As *rc)
474 {
475   xbt_dynar_t ret = xbt_dynar_new(sizeof(Onelink*), xbt_free_f);
476
477   //adding my one link routes
478   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
479   if (onelink_mine)
480     xbt_dynar_merge(&ret,&onelink_mine);
481
482   //recursing
483   char *key;
484   xbt_dict_cursor_t cursor = NULL;
485   AS_t rc_child;
486   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
487     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
488     if (onelink_child)
489       xbt_dynar_merge(&ret,&onelink_child);
490   }
491   return ret;
492 }
493
494 }
495 }
496
497 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
498 {
499   simgrid::surf::NetCard *rc = sg_netcard_by_name_or_null(name);
500   if (rc)
501     return rc->getRcType();
502
503   return SURF_NETWORK_ELEMENT_NULL;
504 }
505
506 /**
507  * \brief Generic method: create the global routing schema
508  *
509  * Make a global routing structure and set all the parsing functions.
510  */
511 void routing_model_create( void *loopback)
512 {
513   /* config the uniq global routing */
514   routing_platf = new simgrid::surf::RoutingPlatf();
515   routing_platf->p_root = NULL;
516   routing_platf->p_loopback = loopback;
517   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
518   /* no current routing at moment */
519   current_routing = NULL;
520 }
521
522
523 /* ************************************************** */
524 /* ********** PATERN FOR NEW ROUTING **************** */
525
526 /* The minimal configuration of a new routing model need the next functions,
527  * also you need to set at the start of the file, the new model in the model
528  * list. Remember keep the null ending of the list.
529  */
530 /*** Routing model structure ***/
531 // typedef struct {
532 //   s_routing_component_t generic_routing;
533 //   /* things that your routing model need */
534 // } s_routing_component_NEW_t,*routing_component_NEW_t;
535
536 /*** Parse routing model functions ***/
537 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
538 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
539 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
540 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
541 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
542
543 /*** Business methods ***/
544 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
545 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
546 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
547
548 /*** Creation routing model functions ***/
549 // static void* model_NEW_create(void) {
550 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
551 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
552 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
553 //   new_component->generic_routing.set_route = model_NEW_set_route;
554 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
555 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
556 //   new_component->generic_routing.get_route = NEW_get_route;
557 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
558 //   new_component->generic_routing.finalize = NEW_finalize;
559 //   /* initialization of internal structures */
560 //   return new_component;
561 // } /* mandatory */
562 // static void  model_NEW_load(void) {}   /* mandatory */
563 // static void  model_NEW_unload(void) {} /* mandatory */
564 // static void  model_NEW_end(void) {}    /* mandatory */
565
566 /* ************************************************************************** */
567 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
568
569 void routing_cluster_add_backbone(void* bb) {
570   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
571         "You have to be in model Cluster to use tag backbone!");
572   xbt_assert(!static_cast<simgrid::surf::AsCluster*>(current_routing)->p_backbone, "The backbone link is already defined!");
573   static_cast<simgrid::surf::AsCluster*>(current_routing)->p_backbone =
574     static_cast<simgrid::surf::Link*>(bb);
575   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
576 }
577
578 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
579 {
580   int start, end, i;
581   char *groups , *host_id , *link_id = NULL;
582   unsigned int iter;
583   xbt_dynar_t radical_elements;
584   xbt_dynar_t radical_ends;
585
586   //Make all hosts
587   radical_elements = xbt_str_split(cabinet->radical, ",");
588   xbt_dynar_foreach(radical_elements, iter, groups) {
589
590     radical_ends = xbt_str_split(groups, "-");
591     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
592
593     switch (xbt_dynar_length(radical_ends)) {
594     case 1:
595       end = start;
596       break;
597     case 2:
598       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
599       break;
600     default:
601       surf_parse_error("Malformed radical");
602       break;
603     }
604     s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
605     memset(&host, 0, sizeof(host));
606     host.initiallyOn   = 1;
607     host.pstate        = 0;
608     host.speed_scale   = 1.0;
609     host.core_amount   = 1;
610
611     s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
612     memset(&link, 0, sizeof(link));
613     link.initiallyOn = 1;
614     link.policy    = SURF_LINK_FULLDUPLEX;
615     link.latency   = cabinet->lat;
616     link.bandwidth = cabinet->bw;
617
618     s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
619     memset(&host_link, 0, sizeof(host_link));
620
621     for (i = start; i <= end; i++) {
622       host_id                      = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
623       link_id                      = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
624       host.id                      = host_id;
625       link.id                      = link_id;
626       host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
627       xbt_dynar_push(host.speed_peak,&cabinet->speed);
628       sg_platf_new_host(&host);
629       xbt_dynar_free(&host.speed_peak);
630       sg_platf_new_link(&link);
631
632       char* link_up       = bprintf("%s_UP",link_id);
633       char* link_down     = bprintf("%s_DOWN",link_id);
634       host_link.id        = host_id;
635       host_link.link_up   = link_up;
636       host_link.link_down = link_down;
637       sg_platf_new_netcard(&host_link);
638
639       free(host_id);
640       free(link_id);
641       free(link_up);
642       free(link_down);
643     }
644
645     xbt_dynar_free(&radical_ends);
646   }
647   xbt_dynar_free(&radical_elements);
648 }
649
650 void routing_new_cluster(sg_platf_cluster_cbarg_t cluster)
651 {
652   using simgrid::surf::AsCluster;
653   using simgrid::surf::AsClusterTorus;
654   using simgrid::surf::AsClusterFatTree;
655
656   char *host_id, *groups, *link_id = NULL;
657   xbt_dict_t patterns = NULL;
658   int rankId=0;
659
660   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
661   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
662
663   unsigned int iter;
664   int start, end, i;
665   xbt_dynar_t radical_elements;
666   xbt_dynar_t radical_ends;
667
668   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
669       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
670     patterns = xbt_dict_new_homogeneous(xbt_free_f);
671     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
672     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
673     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
674   }
675
676   /* parse the topology attribute. If we are not in a flat cluster,
677    * switch to the right mode and initialize the routing with
678    * the parameters in topo_parameters attribute
679    */
680   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
681   AS.id = cluster->id;
682
683   if(cluster->topology == SURF_CLUSTER_TORUS){
684     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
685     AS.routing = A_surfxml_AS_routing_Cluster___torus;
686     sg_platf_new_AS_begin(&AS);
687     ((AsClusterTorus*)current_routing)->parse_specific_arguments(cluster);
688   }
689   else if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
690     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Fat_Tree_Cluster\">", cluster->id);
691     AS.routing = A_surfxml_AS_routing_Cluster___fat___tree;
692     sg_platf_new_AS_begin(&AS);
693     ((AsClusterFatTree*)current_routing)->parse_specific_arguments(cluster);
694   }
695
696   else{
697     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
698     AS.routing = A_surfxml_AS_routing_Cluster;
699     sg_platf_new_AS_begin(&AS);
700   }
701
702   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
703       ((AsCluster*)current_routing)->p_nb_links_per_node++;
704       ((AsCluster*)current_routing)->p_has_loopback=1;
705   }
706
707   if(cluster->limiter_link!=0){
708       ((AsCluster*)current_routing)->p_nb_links_per_node++;
709       ((AsCluster*)current_routing)->p_has_limiter=1;
710   }
711
712
713
714   current_routing->p_linkUpDownList
715             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
716
717   //Make all hosts
718   radical_elements = xbt_str_split(cluster->radical, ",");
719   xbt_dynar_foreach(radical_elements, iter, groups) {
720
721     radical_ends = xbt_str_split(groups, "-");
722     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
723
724     switch (xbt_dynar_length(radical_ends)) {
725     case 1:
726       end = start;
727       break;
728     case 2:
729       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
730       break;
731     default:
732       surf_parse_error("Malformed radical");
733       break;
734     }
735     for (i = start; i <= end; i++) {
736       host_id =
737           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
738       link_id = bprintf("%s_link_%d", cluster->id, i);
739
740       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
741
742       memset(&host, 0, sizeof(host));
743       host.id = host_id;
744       if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
745         xbt_dict_cursor_t cursor=NULL;
746         char *key,*data;
747         host.properties = xbt_dict_new();
748
749         xbt_dict_foreach(cluster->properties,cursor,key,data) {
750           xbt_dict_set(host.properties, key, xbt_strdup(data),free);
751         }
752       }
753       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
754         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
755         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
756         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
757         host.speed_trace = tmgr_trace_new_from_file(avail_file);
758         xbt_free(avail_file);
759       } else {
760         XBT_DEBUG("\tavailability_file=\"\"");
761       }
762
763       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
764         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
765         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
766         host.state_trace = tmgr_trace_new_from_file(avail_file);
767         xbt_free(avail_file);
768       } else {
769         XBT_DEBUG("\tstate_file=\"\"");
770       }
771
772       host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
773       xbt_dynar_push(host.speed_peak,&cluster->speed);
774       host.pstate = 0;
775
776       //host.power_peak = cluster->power;
777       host.speed_scale = 1.0;
778       host.core_amount = cluster->core_amount;
779       host.initiallyOn = 1;
780       host.coord = "";
781       sg_platf_new_host(&host);
782       xbt_dynar_free(&host.speed_peak);
783       XBT_DEBUG("</host>");
784
785       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
786                 cluster->bw, cluster->lat);
787
788
789       s_surf_parsing_link_up_down_t info_lim, info_loop;
790       // All links are saved in a matrix;
791       // every row describes a single node; every node
792       // may have multiple links.
793       // the first column may store a link from x to x if p_has_loopback is set
794       // the second column may store a limiter link if p_has_limiter is set
795       // other columns are to store one or more link for the node
796
797       //add a loopback link
798       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
799         char *tmp_link = bprintf("%s_loopback", link_id);
800         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
801                 cluster->limiter_link);
802
803
804         memset(&link, 0, sizeof(link));
805         link.id        = tmp_link;
806         link.bandwidth = cluster->loopback_bw;
807         link.latency   = cluster->loopback_lat;
808         link.initiallyOn = 1;
809         link.policy    = SURF_LINK_FATPIPE;
810         sg_platf_new_link(&link);
811         info_loop.link_up   = Link::byName(tmp_link);
812         info_loop.link_down = info_loop.link_up;
813         free(tmp_link);
814         xbt_dynar_set(current_routing->p_linkUpDownList,
815           rankId*(static_cast<AsCluster*>(current_routing))->p_nb_links_per_node, &info_loop);
816       }
817
818       //add a limiter link (shared link to account for maximal bandwidth of the node)
819       if(cluster->limiter_link!=0){
820         char *tmp_link = bprintf("%s_limiter", link_id);
821         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
822                 cluster->limiter_link);
823
824
825         memset(&link, 0, sizeof(link));
826         link.id = tmp_link;
827         link.bandwidth = cluster->limiter_link;
828         link.latency = 0;
829         link.initiallyOn = 1;
830         link.policy = SURF_LINK_SHARED;
831         sg_platf_new_link(&link);
832         info_lim.link_up = Link::byName(tmp_link);
833         info_lim.link_down = info_lim.link_up;
834         free(tmp_link);
835         auto as_cluster = static_cast<AsCluster*>(current_routing);
836         xbt_dynar_set(current_routing->p_linkUpDownList,
837             rankId*(as_cluster)->p_nb_links_per_node + as_cluster->p_has_loopback ,
838             &info_lim);
839
840       }
841
842
843       //call the cluster function that adds the others links
844       if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
845         ((AsClusterFatTree*) current_routing)->addProcessingNode(i);
846       }
847       else {
848       static_cast<AsCluster*>(current_routing)->create_links_for_node(cluster, i, rankId, rankId*
849           static_cast<AsCluster*>(current_routing)->p_nb_links_per_node
850           + static_cast<AsCluster*>(current_routing)->p_has_loopback
851           + static_cast<AsCluster*>(current_routing)->p_has_limiter );
852       }
853       xbt_free(link_id);
854       xbt_free(host_id);
855       rankId++;
856     }
857
858     xbt_dynar_free(&radical_ends);
859   }
860   xbt_dynar_free(&radical_elements);
861
862   // For fat trees, the links must be created once all nodes have been added
863   if(cluster->topology == SURF_CLUSTER_FAT_TREE) {
864     static_cast<simgrid::surf::AsClusterFatTree*>(current_routing)->create_links();
865   }
866   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
867   // and it's very useful to connect clusters together
868   XBT_DEBUG(" ");
869   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
870   char *newid = NULL;
871   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
872   memset(&router, 0, sizeof(router));
873   router.id = cluster->router_id;
874   router.coord = "";
875   if (!router.id || !strcmp(router.id, ""))
876     router.id = newid =
877         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
878                 cluster->suffix);
879   sg_platf_new_router(&router);
880   ((AsCluster*)current_routing)->p_router = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
881   free(newid);
882
883   //Make the backbone
884   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
885     char *link_backbone = bprintf("%s_backbone", cluster->id);
886     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
887               cluster->bb_bw, cluster->bb_lat);
888
889     memset(&link, 0, sizeof(link));
890     link.id        = link_backbone;
891     link.bandwidth = cluster->bb_bw;
892     link.latency   = cluster->bb_lat;
893     link.initiallyOn = 1;
894     link.policy    = cluster->bb_sharing_policy;
895
896     sg_platf_new_link(&link);
897
898     routing_cluster_add_backbone(Link::byName(link_backbone));
899
900     free(link_backbone);
901   }
902
903   XBT_DEBUG("</AS>");
904   sg_platf_new_AS_end();
905   XBT_DEBUG(" ");
906   xbt_dict_free(&patterns); // no op if it were never set
907 }
908
909 static void routing_parse_postparse(void) {
910   xbt_dict_free(&random_value);
911 }
912
913 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
914 {
915   using simgrid::surf::NetCard;
916   using simgrid::surf::AsCluster;
917
918   char *host_id = NULL;
919   char *link_id = NULL;
920   char *router_id = NULL;
921
922   XBT_DEBUG(" ");
923   host_id = HOST_PEER(peer->id);
924   link_id = LINK_PEER(peer->id);
925   router_id = ROUTER_PEER(peer->id);
926
927   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
928   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
929   AS.id                    = peer->id;
930   AS.routing               = A_surfxml_AS_routing_Cluster;
931   sg_platf_new_AS_begin(&AS);
932
933   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
934
935   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
936   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
937   memset(&host, 0, sizeof(host));
938   host.initiallyOn = 1;
939   host.id = host_id;
940
941   host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
942   xbt_dynar_push(host.speed_peak,&peer->speed);
943   host.pstate = 0;
944   //host.power_peak = peer->power;
945   host.speed_scale = 1.0;
946   host.speed_trace = peer->availability_trace;
947   host.state_trace = peer->state_trace;
948   host.core_amount = 1;
949   sg_platf_new_host(&host);
950   xbt_dynar_free(&host.speed_peak);
951
952   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
953   memset(&link, 0, sizeof(link));
954   link.initiallyOn = 1;
955   link.policy  = SURF_LINK_SHARED;
956   link.latency = peer->lat;
957
958   char* link_up = bprintf("%s_UP",link_id);
959   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
960             peer->bw_out, peer->lat);
961   link.id = link_up;
962   link.bandwidth = peer->bw_out;
963   sg_platf_new_link(&link);
964
965   char* link_down = bprintf("%s_DOWN",link_id);
966   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
967             peer->bw_in, peer->lat);
968   link.id = link_down;
969   link.bandwidth = peer->bw_in;
970   sg_platf_new_link(&link);
971
972   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
973   s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
974   memset(&host_link, 0, sizeof(host_link));
975   host_link.id        = host_id;
976   host_link.link_up   = link_up;
977   host_link.link_down = link_down;
978   sg_platf_new_netcard(&host_link);
979
980   XBT_DEBUG("<router id=\"%s\"/>", router_id);
981   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
982   memset(&router, 0, sizeof(router));
983   router.id = router_id;
984   router.coord = peer->coord;
985   sg_platf_new_router(&router);
986   static_cast<AsCluster*>(current_routing)->p_router = static_cast<NetCard*>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
987
988   XBT_DEBUG("</AS>");
989   sg_platf_new_AS_end();
990   XBT_DEBUG(" ");
991
992   //xbt_dynar_free(&tab_elements_num);
993   free(router_id);
994   free(host_id);
995   free(link_id);
996   free(link_up);
997   free(link_down);
998 }
999
1000 // static void routing_parse_Srandom(void)
1001 // {
1002 //   double mean, std, min, max, seed;
1003 //   char *random_id = A_surfxml_random_id;
1004 //   char *random_radical = A_surfxml_random_radical;
1005 //   char *rd_name = NULL;
1006 //   char *rd_value;
1007 //   mean = surf_parse_get_double(A_surfxml_random_mean);
1008 //   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1009 //   min = surf_parse_get_double(A_surfxml_random_min);
1010 //   max = surf_parse_get_double(A_surfxml_random_max);
1011 //   seed = surf_parse_get_double(A_surfxml_random_seed);
1012
1013 //   double res = 0;
1014 //   int i = 0;
1015 //   random_data_t random = xbt_new0(s_random_data_t, 1);
1016 //   char *tmpbuf;
1017
1018 //   xbt_dynar_t radical_elements;
1019 //   unsigned int iter;
1020 //   char *groups;
1021 //   int start, end;
1022 //   xbt_dynar_t radical_ends;
1023
1024 //   switch (A_surfxml_random_generator) {
1025 //   case AU_surfxml_random_generator:
1026 //   case A_surfxml_random_generator_NONE:
1027 //     random->generator = NONE;
1028 //     break;
1029 //   case A_surfxml_random_generator_DRAND48:
1030 //     random->generator = DRAND48;
1031 //     break;
1032 //   case A_surfxml_random_generator_RAND:
1033 //     random->generator = RAND;
1034 //     break;
1035 //   case A_surfxml_random_generator_RNGSTREAM:
1036 //     random->generator = RNGSTREAM;
1037 //     break;
1038 //   default:
1039 //     surf_parse_error("Invalid random generator");
1040 //     break;
1041 //   }
1042 //   random->seed = seed;
1043 //   random->min = min;
1044 //   random->max = max;
1045
1046 //   /* Check user stupidities */
1047 //   if (max < min)
1048 //     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1049 //   if (mean < min)
1050 //     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1051 //   if (mean > max)
1052 //     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1053
1054 //   /* normalize the mean and standard deviation before storing */
1055 //   random->mean = (mean - min) / (max - min);
1056 //   random->std = std / (max - min);
1057
1058 //   if (random->mean * (1 - random->mean) < random->std * random->std)
1059 //     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1060 //            random->mean, random->std);
1061
1062 //   XBT_DEBUG
1063 //       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1064 //        random_id, random->min, random->max, random->mean, random->std,
1065 //        (int)random->generator, random->seed, random_radical);
1066
1067 //   if (!random_value)
1068 //     random_value = xbt_dict_new_homogeneous(free);
1069
1070 //   if (!strcmp(random_radical, "")) {
1071 //     res = random_generate(random);
1072 //     rd_value = bprintf("%f", res);
1073 //     xbt_dict_set(random_value, random_id, rd_value, NULL);
1074 //   } else {
1075 //     radical_elements = xbt_str_split(random_radical, ",");
1076 //     xbt_dynar_foreach(radical_elements, iter, groups) {
1077 //       radical_ends = xbt_str_split(groups, "-");
1078 //       switch (xbt_dynar_length(radical_ends)) {
1079 //       case 1:
1080 //         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1081 //                    "Custom Random '%s' already exists !", random_id);
1082 //         res = random_generate(random);
1083 //         tmpbuf =
1084 //             bprintf("%s%d", random_id,
1085 //                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1086 //         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1087 //         xbt_free(tmpbuf);
1088 //         break;
1089
1090 //       case 2:
1091 //         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1092 //         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1093 //         for (i = start; i <= end; i++) {
1094 //           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1095 //                      "Custom Random '%s' already exists !", bprintf("%s%d",
1096 //                                                                     random_id,
1097 //                                                                     i));
1098 //           res = random_generate(random);
1099 //           tmpbuf = bprintf("%s%d", random_id, i);
1100 //           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1101 //           xbt_free(tmpbuf);
1102 //         }
1103 //         break;
1104 //       default:
1105 //         XBT_CRITICAL("Malformed radical");
1106 //         break;
1107 //       }
1108 //       res = random_generate(random);
1109 //       rd_name = bprintf("%s_router", random_id);
1110 //       rd_value = bprintf("%f", res);
1111 //       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1112
1113 //       xbt_dynar_free(&radical_ends);
1114 //     }
1115 //     free(rd_name);
1116 //     xbt_dynar_free(&radical_elements);
1117 //   }
1118 // }
1119
1120 static void check_disk_attachment()
1121 {
1122   xbt_lib_cursor_t cursor;
1123   char *key;
1124   void **data;
1125   simgrid::surf::NetCard *host_elm;
1126   xbt_lib_foreach(storage_lib, cursor, key, data) {
1127     if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
1128     simgrid::surf::Storage *storage = static_cast<simgrid::surf::Storage*>(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
1129     host_elm = sg_netcard_by_name_or_null(storage->p_attach);
1130     if(!host_elm)
1131       surf_parse_error("Unable to attach storage %s: host %s doesn't exist.", storage->getName(), storage->p_attach);
1132     }
1133   }
1134 }
1135
1136 void routing_register_callbacks()
1137 {
1138   simgrid::surf::on_postparse.connect(routing_parse_postparse);
1139   simgrid::surf::on_postparse.connect(check_disk_attachment);
1140
1141   instr_routing_define_callbacks();
1142 }
1143
1144 /**
1145  * \brief Recursive function for finalize
1146  *
1147  * \param rc the source host name
1148  *
1149  * This fuction is call by "finalize". It allow to finalize the
1150  * AS or routing components. It delete all the structures.
1151  */
1152 static void finalize_rec(simgrid::surf::As *as) {
1153   xbt_dict_cursor_t cursor = NULL;
1154   char *key;
1155   AS_t elem;
1156
1157   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1158     finalize_rec(elem);
1159   }
1160
1161   delete as;;
1162 }
1163
1164 /** \brief Frees all memory allocated by the routing module */
1165 void routing_exit(void) {
1166   delete routing_platf;
1167 }
1168
1169 namespace simgrid {
1170 namespace surf {
1171
1172 RoutingPlatf::~RoutingPlatf()
1173 {
1174   xbt_dynar_free(&p_lastRoute);
1175   finalize_rec(p_root);
1176 }
1177
1178 }
1179 }
1180
1181 AS_t surf_AS_get_routing_root() {
1182   return routing_platf->p_root;
1183 }
1184
1185 const char *surf_AS_get_name(simgrid::surf::As *as) {
1186   return as->p_name;
1187 }
1188
1189 static simgrid::surf::As *surf_AS_recursive_get_by_name(
1190   simgrid::surf::As *current, const char * name)
1191 {
1192   xbt_dict_cursor_t cursor = NULL;
1193   char *key;
1194   AS_t elem;
1195   simgrid::surf::As *tmp = NULL;
1196
1197   if(!strcmp(current->p_name, name))
1198     return current;
1199
1200   xbt_dict_foreach(current->p_routingSons, cursor, key, elem) {
1201     tmp = surf_AS_recursive_get_by_name(elem, name);
1202     if(tmp != NULL ) {
1203         break;
1204     }
1205   }
1206   return tmp;
1207 }
1208
1209 simgrid::surf::As *surf_AS_get_by_name(const char * name)
1210 {
1211   simgrid::surf::As *as = surf_AS_recursive_get_by_name(routing_platf->p_root, name);
1212   if(as == NULL)
1213     XBT_WARN("Impossible to find an AS with name %s, please check your input", name);
1214   return as;
1215 }
1216
1217 xbt_dict_t surf_AS_get_routing_sons(simgrid::surf::As *as)
1218 {
1219   return as->p_routingSons;
1220 }
1221
1222 const char *surf_AS_get_model(simgrid::surf::As *as)
1223 {
1224   return as->p_modelDesc->name;
1225 }
1226
1227 xbt_dynar_t surf_AS_get_hosts(simgrid::surf::As *as)
1228 {
1229   xbt_dynar_t elms = as->p_indexNetworkElm;
1230   int count = xbt_dynar_length(elms);
1231   xbt_dynar_t res =  xbt_dynar_new(sizeof(sg_host_t), NULL);
1232   for (int index = 0; index < count; index++) {
1233      sg_netcard_t relm =
1234       xbt_dynar_get_as(elms, index, simgrid::surf::NetCard*);
1235      sg_host_t delm = simgrid::s4u::Host::by_name_or_null(relm->getName());
1236      if (delm!=NULL) {
1237        xbt_dynar_push(res, &delm);
1238      }
1239   }
1240   return res;
1241 }
1242
1243 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1244   as->getGraph(graph, nodes, edges);
1245 }