1 /* Copyright (c) 2009, 2010, 2011. The SimGrid Team.
2 * All rights reserved. */
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. */
7 #include <pcre.h> /* regular expression library */
9 #include "simgrid/platf_interface.h" // platform creation API internal interface
11 #include "surf_routing_private.h"
12 #include "surf/surf_routing.h"
13 #include "surf/surfxml_parse_values.h"
16 * @ingroup SURF_build_api
17 * @brief A library containing all known workstations
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 level
25 int MSG_HOST_LEVEL; //Msg level
26 int SD_HOST_LEVEL; //Simdag level
27 int COORD_HOST_LEVEL=0; //Coordinates level
28 int NS3_HOST_LEVEL; //host node for ns3
31 * @ingroup SURF_build_api
32 * @brief A library containing all known links
35 int SD_LINK_LEVEL; //Simdag level
36 int SURF_LINK_LEVEL; //Surf level
37 int NS3_LINK_LEVEL; //link for ns3
39 xbt_lib_t as_router_lib;
40 int ROUTING_ASR_LEVEL; //Routing level
41 int COORD_ASR_LEVEL; //Coordinates level
42 int NS3_ASR_LEVEL; //host node for ns3
44 static xbt_dict_t random_value = NULL;
46 /** @brief Retrieve a routing edge from its name
48 * Routing edges are either CPU/workstation and routers, whatever
50 sg_routing_edge_t sg_routing_edge_by_name_or_null(const char *name) {
51 sg_routing_edge_t net_elm = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
52 if(!net_elm) net_elm = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
57 routing_global_t global_routing = NULL;
58 AS_t current_routing = NULL;
60 /* global parse functions */
61 xbt_dynar_t parsed_link_list = NULL; /* temporary store of current list link of a route */
62 extern xbt_dynar_t mount_list;
64 static const char *src = NULL; /* temporary store the source name of a route */
65 static const char *dst = NULL; /* temporary store the destination name of a route */
66 static char *gw_src = NULL; /* temporary store the gateway source name of a route */
67 static char *gw_dst = NULL; /* temporary store the gateway destination name of a route */
69 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
71 static void routing_parse_peer(sg_platf_peer_cbarg_t peer); /* peer bypass */
72 static void routing_parse_Srandom(void); /* random bypass */
74 static void routing_parse_postparse(void);
76 /* this lines are only for replace use like index in the model table */
81 SURF_MODEL_DIJKSTRACACHE,
88 struct s_model_type routing_models[] = {
90 "Full routing data (fast, large memory requirements, fully expressive)",
91 model_full_create, model_full_end},
93 "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
94 model_floyd_create, model_floyd_end},
96 "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
97 model_dijkstra_create, model_dijkstra_both_end},
99 "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
100 model_dijkstracache_create, model_dijkstra_both_end},
101 {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
102 model_none_create, NULL},
103 {"RuleBased", "Rule-Based routing data (...)",
104 model_rulebased_create, NULL},
105 {"Vivaldi", "Vivaldi routing",
106 model_vivaldi_create, NULL},
107 {"Cluster", "Cluster routing",
108 model_cluster_create, NULL},
109 {NULL, NULL, NULL, NULL}
113 * \brief Add a "host" to the network element list
115 static void parse_S_host(sg_platf_host_cbarg_t host)
117 sg_routing_edge_t info = NULL;
118 if (current_routing->hierarchy == SURF_ROUTING_NULL)
119 current_routing->hierarchy = SURF_ROUTING_BASE;
120 xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
121 "Reading a host, processing unit \"%s\" already exists", host->id);
123 info = xbt_new0(s_network_element_t, 1);
124 info->rc_component = current_routing;
125 info->rc_type = SURF_NETWORK_ELEMENT_HOST;
126 info->name = xbt_strdup(host->id);
127 info->id = current_routing->parse_PU(current_routing, (void *) info);
128 xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
129 XBT_DEBUG("Having set name '%s' id '%d'",host->id,info->id);
132 xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
136 if (host->coord && strcmp(host->coord, "")) {
140 if (!COORD_HOST_LEVEL)
141 xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
142 /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
143 xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
144 xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
145 xbt_dynar_foreach(ctn_str,cursor, str) {
146 double val = atof(str);
147 xbt_dynar_push(ctn,&val);
149 xbt_dynar_shrink(ctn, 0);
150 xbt_dynar_free(&ctn_str);
151 xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
152 XBT_DEBUG("Having set host coordinates for '%s'",host->id);
157 * \brief Add a "router" to the network element list
159 static void parse_S_router(sg_platf_router_cbarg_t router)
161 sg_routing_edge_t info = NULL;
162 if (current_routing->hierarchy == SURF_ROUTING_NULL)
163 current_routing->hierarchy = SURF_ROUTING_BASE;
164 xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
165 "Reading a router, processing unit \"%s\" already exists",
168 info = xbt_new0(s_network_element_t, 1);
169 info->rc_component = current_routing;
170 info->rc_type = SURF_NETWORK_ELEMENT_ROUTER;
171 info->name = xbt_strdup(router->id);
172 info->id = current_routing->parse_PU(current_routing, (void *) info);
173 xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
174 XBT_DEBUG("Having set name '%s' id '%d'",router->id,info->id);
176 if (strcmp(router->coord, "")) {
180 if (!COORD_ASR_LEVEL)
181 xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
182 /* Pre-parse the host coordinates */
183 xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
184 xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
185 xbt_dynar_foreach(ctn_str,cursor, str) {
186 double val = atof(str);
187 xbt_dynar_push(ctn,&val);
189 xbt_dynar_shrink(ctn, 0);
190 xbt_dynar_free(&ctn_str);
191 xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
192 XBT_DEBUG("Having set router coordinates for '%s'",router->id);
198 * \brief Set the end points for a route
200 static void routing_parse_S_route(void)
202 if (src != NULL && dst != NULL && parsed_link_list != NULL)
203 THROWF(arg_error, 0, "Route between %s to %s can not be defined",
204 A_surfxml_route_src, A_surfxml_route_dst);
205 src = A_surfxml_route_src;
206 dst = A_surfxml_route_dst;
207 xbt_assert(strlen(src) > 0 || strlen(dst) > 0,
208 "Some limits are null in the route between \"%s\" and \"%s\"",
210 parsed_link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
214 * \brief Set the end points and gateways for a ASroute
216 static void routing_parse_S_ASroute(void)
218 if (src != NULL && dst != NULL && parsed_link_list != NULL)
219 THROWF(arg_error, 0, "Route between %s to %s can not be defined",
220 A_surfxml_ASroute_src, A_surfxml_ASroute_dst);
221 src = A_surfxml_ASroute_src;
222 dst = A_surfxml_ASroute_dst;
223 gw_src = A_surfxml_ASroute_gw_src;
224 gw_dst = A_surfxml_ASroute_gw_dst;
225 xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
226 || strlen(gw_dst) > 0,
227 "Some limits are null in the route between \"%s\" and \"%s\"",
229 parsed_link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
233 * \brief Set the end points for a bypassRoute
235 static void routing_parse_S_bypassRoute(void)
237 if (src != NULL && dst != NULL && parsed_link_list != NULL)
239 "Bypass Route between %s to %s can not be defined",
240 A_surfxml_bypassRoute_src, A_surfxml_bypassRoute_dst);
241 src = A_surfxml_bypassRoute_src;
242 dst = A_surfxml_bypassRoute_dst;
245 xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
246 || strlen(gw_dst) > 0,
247 "Some limits are null in the route between \"%s\" and \"%s\"",
249 parsed_link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
253 * \brief Set the end points for a bypassASroute
255 static void routing_parse_S_bypassASroute(void)
257 if (src != NULL && dst != NULL && parsed_link_list != NULL)
259 "Bypass AS Route between %s to %s can not be defined",
260 A_surfxml_bypassASroute_src, A_surfxml_bypassASroute_dst);
261 src = A_surfxml_bypassASroute_src;
262 dst = A_surfxml_bypassASroute_dst;
263 gw_src = A_surfxml_bypassASroute_gw_src;
264 gw_dst = A_surfxml_bypassASroute_gw_dst;
265 xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
266 || strlen(gw_dst) > 0,
267 "Some limits are null in the route between \"%s\" and \"%s\"",
269 parsed_link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
272 * \brief Set a new link on the actual list of link for a route or ASroute from XML
275 static void routing_parse_link_ctn(void)
278 switch (A_surfxml_link_ctn_direction) {
279 case AU_surfxml_link_ctn_direction:
280 case A_surfxml_link_ctn_direction_NONE:
281 link_id = xbt_strdup(A_surfxml_link_ctn_id);
283 case A_surfxml_link_ctn_direction_UP:
284 link_id = bprintf("%s_UP", A_surfxml_link_ctn_id);
286 case A_surfxml_link_ctn_direction_DOWN:
287 link_id = bprintf("%s_DOWN", A_surfxml_link_ctn_id);
290 xbt_dynar_push(parsed_link_list, &link_id);
294 * \brief Store the route by calling the set_route function of the current routing component
296 static void routing_parse_E_route(void)
298 route_t route = xbt_new0(s_route_t, 1);
299 route->link_list = parsed_link_list;
300 xbt_assert(current_routing->parse_route,
301 "no defined method \"set_route\" in \"%s\"",
302 current_routing->name);
303 current_routing->parse_route(current_routing, src, dst, route);
304 generic_free_route(route);
305 parsed_link_list = NULL;
311 * \brief Store the ASroute by calling the set_ASroute function of the current routing component
313 static void routing_parse_E_ASroute(void)
315 route_t e_route = xbt_new0(s_route_t, 1);
316 e_route->link_list = parsed_link_list;
318 if (!strcmp(current_routing->model_desc->name,"RuleBased")) {
319 // DIRTY PERL HACK AHEAD: with the rulebased routing, the {src,dst}_gateway fields
320 // store the provided name instead of the entity directly (model_rulebased_parse_ASroute knows)
322 // This is because the user will provide something like "^AS_(.*)$" instead of the proper name of a given entity
323 e_route->src_gateway = (sg_routing_edge_t) gw_src;
324 e_route->dst_gateway = (sg_routing_edge_t) gw_dst;
326 e_route->src_gateway = sg_routing_edge_by_name_or_null(gw_src);
327 e_route->dst_gateway = sg_routing_edge_by_name_or_null(gw_dst);
329 xbt_assert(current_routing->parse_ASroute,
330 "no defined method \"set_ASroute\" in \"%s\"",
331 current_routing->name);
332 current_routing->parse_ASroute(current_routing, src, dst, e_route);
333 generic_free_route(e_route);
334 parsed_link_list = NULL;
342 * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
344 static void routing_parse_E_bypassRoute(void)
346 route_t e_route = xbt_new0(s_route_t, 1);
347 e_route->link_list = parsed_link_list;
349 xbt_assert(current_routing->parse_bypassroute,
350 "Bypassing mechanism not implemented by routing '%s'",
351 current_routing->name);
353 current_routing->parse_bypassroute(current_routing, src, dst, e_route);
354 parsed_link_list = NULL;
361 * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
363 static void routing_parse_E_bypassASroute(void)
365 route_t e_route = xbt_new0(s_route_t, 1);
366 e_route->link_list = parsed_link_list;
367 e_route->src_gateway = sg_routing_edge_by_name_or_null(gw_src);
368 e_route->dst_gateway = sg_routing_edge_by_name_or_null(gw_dst);
369 xbt_assert(current_routing->parse_bypassroute,
370 "Bypassing mechanism not implemented by routing '%s'",
371 current_routing->name);
372 current_routing->parse_bypassroute(current_routing, src, dst, e_route);
373 parsed_link_list = NULL;
381 * \brief Make a new routing component to the platform
383 * Add a new autonomous system to the platform. Any elements (such as host,
384 * router or sub-AS) added after this call and before the corresponding call
385 * to sg_platf_new_AS_close() will be added to this AS.
387 * Once this function was called, the configuration concerning the used
388 * models cannot be changed anymore.
390 * @param AS_id name of this autonomous system. Must be unique in the platform
391 * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
393 void routing_AS_begin(const char *AS_id, const char *wanted_routing_type)
396 routing_model_description_t model = NULL;
399 xbt_assert(!xbt_lib_get_or_null
400 (as_router_lib, AS_id, ROUTING_ASR_LEVEL),
401 "The AS \"%s\" already exists", AS_id);
403 /* search the routing model */
404 for (cpt = 0; routing_models[cpt].name; cpt++)
405 if (!strcmp(wanted_routing_type, routing_models[cpt].name))
406 model = &routing_models[cpt];
407 /* if its not exist, error */
409 fprintf(stderr, "Routing model %s not found. Existing models:\n",
410 wanted_routing_type);
411 for (cpt = 0; routing_models[cpt].name; cpt++)
412 fprintf(stderr, " %s: %s\n", routing_models[cpt].name,
413 routing_models[cpt].desc);
417 /* make a new routing component */
418 new_as = (AS_t) model->create();
419 new_as->model_desc = model;
420 new_as->hierarchy = SURF_ROUTING_NULL;
421 new_as->name = xbt_strdup(AS_id);
423 sg_routing_edge_t info = NULL;
424 info = xbt_new0(s_network_element_t, 1);
426 if (current_routing == NULL && global_routing->root == NULL) {
428 /* it is the first one */
429 new_as->routing_father = NULL;
430 global_routing->root = new_as;
432 } else if (current_routing != NULL && global_routing->root != NULL) {
434 xbt_assert(!xbt_dict_get_or_null
435 (current_routing->routing_sons, AS_id),
436 "The AS \"%s\" already exists", AS_id);
437 /* it is a part of the tree */
438 new_as->routing_father = current_routing;
439 /* set the father behavior */
440 if (current_routing->hierarchy == SURF_ROUTING_NULL)
441 current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
442 /* add to the sons dictionary */
443 xbt_dict_set(current_routing->routing_sons, AS_id,
444 (void *) new_as, NULL);
445 /* add to the father element list */
446 info->id = current_routing->parse_AS(current_routing, (void *) info);
448 THROWF(arg_error, 0, "All defined components must be belong to a AS");
451 info->rc_component = new_as->routing_father;
452 info->rc_type = SURF_NETWORK_ELEMENT_AS;
453 info->name = new_as->name;
455 xbt_lib_set(as_router_lib, new_as->name, ROUTING_ASR_LEVEL,
457 XBT_DEBUG("Having set name '%s' id '%d'",new_as->name,info->id);
459 /* set the new current component of the tree */
460 current_routing = new_as;
461 current_routing->net_elem = info;
466 * \brief Specify that the current description of AS is finished
468 * Once you've declared all the content of your AS, you have to close
469 * it with this call. Your AS is not usable until you call this function.
471 * @fixme: this call is not as robust as wanted: bad things WILL happen
472 * if you call it twice for the same AS, or if you forget calling it, or
473 * even if you add stuff to a closed AS
476 void routing_AS_end()
479 if (current_routing == NULL) {
480 THROWF(arg_error, 0, "Close an AS, but none was under construction");
482 if (current_routing->model_desc->end)
483 current_routing->model_desc->end(current_routing);
484 current_routing = current_routing->routing_father;
488 /* Aux Business methods */
491 * \brief Get the AS father and the first elements of the chain
493 * \param src the source host name
494 * \param dst the destination host name
496 * Get the common father of the to processing units, and the first different
497 * father in the chain
499 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
504 xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
505 #define ELEMENTS_FATHER_MAXDEPTH 16 /* increase if it is not enough */
507 AS_t path_src[ELEMENTS_FATHER_MAXDEPTH];
508 AS_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
516 /* (1) find the as where the src and dst are located */
517 sg_routing_edge_t src_data = src;
518 sg_routing_edge_t dst_data = dst;
519 src_as = src_data->rc_component;
520 dst_as = dst_data->rc_component;
522 char* src_name = src_data->name;
523 char* dst_name = dst_data->name;
526 xbt_assert(src_as && dst_as,
527 "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
529 /* (2) find the path to the root routing component */
530 for (current = src_as; current != NULL; current = current->routing_father) {
531 if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
532 xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
533 path_src[index_src++] = current;
535 for (current = dst_as; current != NULL; current = current->routing_father) {
536 if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
537 xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
538 path_dst[index_dst++] = current;
541 /* (3) find the common father */
543 current_src = path_src[--index_src];
544 current_dst = path_dst[--index_dst];
545 } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
547 /* (4) they are not in the same routing component, make the path */
548 if (current_src == current_dst)
549 father = current_src;
551 father = path_src[index_src + 1];
553 /* (5) result generation */
554 *res_father = father; /* first the common father of src and dst */
555 *res_src = current_src; /* second the first different father of src */
556 *res_dst = current_dst; /* three the first different father of dst */
558 #undef ELEMENTS_FATHER_MAXDEPTH
561 /* Global Business methods */
564 * \brief Recursive function for get_route_latency
566 * \param src the source host name
567 * \param dst the destination host name
568 * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
569 * \param *latency the latency, if needed
571 * This function is called by "get_route" and "get_latency". It allows to walk
572 * recursively through the ASes tree.
574 static void _get_route_and_latency(sg_routing_edge_t src, sg_routing_edge_t dst,
575 xbt_dynar_t * links, double *latency)
578 memset(&route,0,sizeof(route));
580 XBT_DEBUG("Solve route/latency \"%s\" to \"%s\"", src->name, dst->name);
581 xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
583 /* Find how src and dst are interconnected */
584 AS_t common_father, src_father, dst_father;
585 elements_father(src, dst, &common_father, &src_father, &dst_father);
586 XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
587 common_father->name,src_father->name,dst_father->name);
589 /* Check whether a direct bypass is defined */
590 route_t e_route_bypass = NULL;
591 if (common_father->get_bypass_route)
592 e_route_bypass = common_father->get_bypass_route(common_father, src, dst, latency);
594 /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
595 if (e_route_bypass) {
596 xbt_dynar_merge(links,&(e_route_bypass->link_list));
597 generic_free_route(e_route_bypass);
601 /* If src and dst are in the same AS, life is good */
602 if (src_father == dst_father) { /* SURF_ROUTING_BASE */
604 route.link_list = *links;
606 common_father->get_route_and_latency(common_father, src, dst, &route,latency);
610 /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
612 route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
613 // Find the net_card corresponding to father
614 sg_routing_edge_t src_father_net_elm = src_father->net_elem;
615 sg_routing_edge_t dst_father_net_elm = dst_father->net_elem;
617 common_father->get_route_and_latency(common_father, src_father_net_elm, dst_father_net_elm, &route,latency);
619 xbt_assert((route.src_gateway != NULL) && (route.dst_gateway != NULL),
620 "bad gateways for route from \"%s\" to \"%s\"", src->name, dst->name);
622 sg_routing_edge_t src_gateway_net_elm = route.src_gateway;
623 sg_routing_edge_t dst_gateway_net_elm = route.dst_gateway;
625 /* If source gateway is not our source, we have to recursively find our way up to this point */
626 if (src != src_gateway_net_elm)
627 _get_route_and_latency(src, src_gateway_net_elm, links, latency);
629 xbt_dynar_merge(links,&(route.link_list));
631 /* If dest gateway is not our destination, we have to recursively find our way from this point */
632 // FIXME why can't I factorize it the same way than [src;src_gw] without breaking the examples??
633 if (dst_gateway_net_elm != dst) {
634 _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
636 xbt_dynar_free(&route.link_list);
640 * \brief Find a route between hosts
642 * \param src the network_element_t for src host
643 * \param dst the network_element_t for dst host
644 * \param route where to store the list of links.
645 * If *route=NULL, create a short lived dynar. Else, fill the provided dynar
646 * \param latency where to store the latency experienced on the path (or NULL if not interested)
647 * It is the caller responsability to initialize latency to 0 (we add to provided route)
650 * walk through the routing components tree and find a route between hosts
651 * by calling the differents "get_route" functions in each routing component.
653 void routing_get_route_and_latency(sg_routing_edge_t src,
654 sg_routing_edge_t dst,
655 xbt_dynar_t * route, double *latency)
657 XBT_DEBUG("routing_get_route_and_latency from %s to %s",src->name,dst->name);
659 xbt_dynar_reset(global_routing->last_route);
660 *route = global_routing->last_route;
663 _get_route_and_latency(src, dst, route, latency);
665 xbt_assert(!latency || *latency >= 0.0,
666 "negative latency on route between \"%s\" and \"%s\"", src->name, dst->name);
669 static xbt_dynar_t recursive_get_onelink_routes(AS_t rc)
671 xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
673 //adding my one link routes
674 xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
676 xbt_dynar_merge(&ret,&onelink_mine);
680 xbt_dict_cursor_t cursor = NULL;
682 xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
683 xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
685 xbt_dynar_merge(&ret,&onelink_child);
690 static xbt_dynar_t get_onelink_routes(void)
692 return recursive_get_onelink_routes(global_routing->root);
695 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
697 sg_routing_edge_t rc = sg_routing_edge_by_name_or_null(name);
701 return SURF_NETWORK_ELEMENT_NULL;
705 * \brief Generic method: create the global routing schema
707 * Make a global routing structure and set all the parsing functions.
709 void routing_model_create( void *loopback)
711 /* config the uniq global routing */
712 global_routing = xbt_new0(s_routing_global_t, 1);
713 global_routing->root = NULL;
714 global_routing->get_onelink_routes = get_onelink_routes;
715 global_routing->loopback = loopback;
716 global_routing->last_route = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
717 /* no current routing at moment */
718 current_routing = NULL;
722 /* ************************************************** */
723 /* ********** PATERN FOR NEW ROUTING **************** */
725 /* The minimal configuration of a new routing model need the next functions,
726 * also you need to set at the start of the file, the new model in the model
727 * list. Remember keep the null ending of the list.
729 /*** Routing model structure ***/
731 // s_routing_component_t generic_routing;
732 // /* things that your routing model need */
733 // } s_routing_component_NEW_t,*routing_component_NEW_t;
735 /*** Parse routing model functions ***/
736 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
737 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
738 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
739 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
740 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
742 /*** Business methods ***/
743 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
744 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
745 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
747 /*** Creation routing model functions ***/
748 // static void* model_NEW_create(void) {
749 // routing_component_NEW_t new_component = xbt_new0(s_routing_component_NEW_t,1);
750 // new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
751 // new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
752 // new_component->generic_routing.set_route = model_NEW_set_route;
753 // new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
754 // new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
755 // new_component->generic_routing.get_route = NEW_get_route;
756 // new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
757 // new_component->generic_routing.finalize = NEW_finalize;
758 // /* initialization of internal structures */
759 // return new_component;
761 // static void model_NEW_load(void) {} /* mandatory */
762 // static void model_NEW_unload(void) {} /* mandatory */
763 // static void model_NEW_end(void) {} /* mandatory */
765 /* ************************************************************************** */
766 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
768 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
770 char *host_id, *groups, *link_id = NULL;
771 xbt_dict_t patterns = NULL;
773 s_sg_platf_host_cbarg_t host;
774 s_sg_platf_link_cbarg_t link;
778 xbt_dynar_t radical_elements;
779 xbt_dynar_t radical_ends;
781 if (strcmp(cluster->availability_trace, "")
782 || strcmp(cluster->state_trace, "")) {
783 patterns = xbt_dict_new_homogeneous(xbt_free_f);
784 xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
785 xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
786 xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
789 XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
790 sg_platf_new_AS_begin(cluster->id, "Cluster");
792 current_routing->link_up_down_list
793 = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
796 radical_elements = xbt_str_split(cluster->radical, ",");
797 xbt_dynar_foreach(radical_elements, iter, groups) {
799 radical_ends = xbt_str_split(groups, "-");
800 start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
802 switch (xbt_dynar_length(radical_ends)) {
807 end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
810 surf_parse_error("Malformed radical");
813 for (i = start; i <= end; i++) {
815 bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
816 link_id = bprintf("%s_link_%d", cluster->id, i);
818 XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
820 memset(&host, 0, sizeof(host));
822 if (strcmp(cluster->availability_trace, "")) {
823 xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
824 char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
825 XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
826 host.power_trace = tmgr_trace_new(avail_file);
827 xbt_free(avail_file);
829 XBT_DEBUG("\tavailability_file=\"\"");
832 if (strcmp(cluster->state_trace, "")) {
833 char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
834 XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
835 host.state_trace = tmgr_trace_new(avail_file);
836 xbt_free(avail_file);
838 XBT_DEBUG("\tstate_file=\"\"");
841 host.power_peak = cluster->power;
842 host.power_scale = 1.0;
843 host.core_amount = cluster->core_amount;
844 host.initial_state = SURF_RESOURCE_ON;
846 sg_platf_new_host(&host);
847 XBT_DEBUG("</host>");
849 XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
850 cluster->bw, cluster->lat);
852 memset(&link, 0, sizeof(link));
854 link.bandwidth = cluster->bw;
855 link.latency = cluster->lat;
856 link.state = SURF_RESOURCE_ON;
857 link.policy = cluster->sharing_policy;
858 sg_platf_new_link(&link);
860 s_surf_parsing_link_up_down_t info;
862 if (link.policy == SURF_LINK_FULLDUPLEX) {
863 char *tmp_link = bprintf("%s_UP", link_id);
865 xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
867 tmp_link = bprintf("%s_DOWN", link_id);
869 xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
872 info.link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
873 info.link_down = info.link_up;
875 xbt_dynar_push(current_routing->link_up_down_list,&info);
880 xbt_dynar_free(&radical_ends);
882 xbt_dynar_free(&radical_elements);
884 // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
885 // and it's very useful to connect clusters together
887 XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
889 s_sg_platf_router_cbarg_t router;
890 memset(&router, 0, sizeof(router));
891 router.id = cluster->router_id;
893 if (!router.id || !strcmp(router.id, ""))
895 bprintf("%s%s_router%s", cluster->prefix, cluster->id,
897 sg_platf_new_router(&router);
901 if ((cluster->bb_bw != 0) && (cluster->bb_lat != 0)) {
902 char *link_backbone = bprintf("%s_backbone", cluster->id);
903 XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
904 cluster->bb_bw, cluster->bb_lat);
906 memset(&link, 0, sizeof(link));
907 link.id = link_backbone;
908 link.bandwidth = cluster->bb_bw;
909 link.latency = cluster->bb_lat;
910 link.state = SURF_RESOURCE_ON;
911 link.policy = cluster->bb_sharing_policy;
913 sg_platf_new_link(&link);
915 surf_routing_cluster_add_backbone(current_routing, xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
921 sg_platf_new_AS_end();
923 xbt_dict_free(&patterns); // no op if it were never set
926 static void routing_parse_postparse(void) {
927 xbt_dict_free(&random_value);
930 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
932 static int AX_ptr = 0;
933 char *host_id = NULL;
934 char *router_id, *link_router, *link_backbone, *link_id_up, *link_id_down;
936 static unsigned int surfxml_buffer_stack_stack_ptr = 1;
937 static unsigned int surfxml_buffer_stack_stack[1024];
939 surfxml_buffer_stack_stack[0] = 0;
941 surfxml_bufferstack_push(1);
943 XBT_DEBUG("<AS id=\"%s\"\trouting=\"Full\">", peer->id);
944 sg_platf_new_AS_begin(peer->id, "Full");
947 host_id = HOST_PEER(peer->id);
948 router_id = ROUTER_PEER(peer->id);
949 link_id_up = LINK_UP_PEER(peer->id);
950 link_id_down = LINK_DOWN_PEER(peer->id);
952 link_router = bprintf("%s_link_router", peer->id);
953 link_backbone = bprintf("%s_backbone", peer->id);
955 XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
956 s_sg_platf_host_cbarg_t host;
957 memset(&host, 0, sizeof(host));
958 host.initial_state = SURF_RESOURCE_ON;
960 host.power_peak = peer->power;
961 host.power_scale = 1.0;
962 host.power_trace = peer->availability_trace;
963 host.state_trace = peer->state_trace;
964 host.core_amount = 1;
965 host.coord = peer->coord;
966 sg_platf_new_host(&host);
969 XBT_DEBUG("<router id=\"%s\"\tcoordinates=\"%s\"/>", router_id, peer->coord);
970 s_sg_platf_router_cbarg_t router;
971 memset(&router, 0, sizeof(router));
972 router.id = router_id;
973 router.coord = peer->coord;
974 sg_platf_new_router(&router);
976 XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_up,
977 peer->bw_in, peer->lat);
978 s_sg_platf_link_cbarg_t link;
979 memset(&link, 0, sizeof(link));
980 link.state = SURF_RESOURCE_ON;
981 link.policy = SURF_LINK_SHARED;
982 link.id = link_id_up;
983 link.bandwidth = peer->bw_in;
984 link.latency = peer->lat;
985 sg_platf_new_link(&link);
987 // FIXME: dealing with full duplex is not the role of this piece of code, I'd say [Mt]
988 // Instead, it should be created fullduplex, and the models will do what's needed in this case
989 XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_down,
990 peer->bw_out, peer->lat);
991 link.id = link_id_down;
992 sg_platf_new_link(&link);
997 XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", host_id, router_id);
998 XBT_DEBUG("symmetrical=\"NO\">");
999 SURFXML_BUFFER_SET(route_src, host_id);
1000 SURFXML_BUFFER_SET(route_dst, router_id);
1001 A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1002 SURFXML_START_TAG(route);
1004 XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_up);
1005 SURFXML_BUFFER_SET(link_ctn_id, link_id_up);
1006 A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1007 SURFXML_START_TAG(link_ctn);
1008 SURFXML_END_TAG(link_ctn);
1010 XBT_DEBUG("</route>");
1011 SURFXML_END_TAG(route);
1014 XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", router_id, host_id);
1015 XBT_DEBUG("symmetrical=\"NO\">");
1016 SURFXML_BUFFER_SET(route_src, router_id);
1017 SURFXML_BUFFER_SET(route_dst, host_id);
1018 A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
1019 SURFXML_START_TAG(route);
1021 XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_down);
1022 SURFXML_BUFFER_SET(link_ctn_id, link_id_down);
1023 A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
1024 SURFXML_START_TAG(link_ctn);
1025 SURFXML_END_TAG(link_ctn);
1027 XBT_DEBUG("</route>");
1028 SURFXML_END_TAG(route);
1031 sg_platf_new_AS_end();
1034 //xbt_dynar_free(&tab_elements_num);
1038 free(link_backbone);
1041 surfxml_bufferstack_pop(1);
1044 static void routing_parse_Srandom(void)
1046 double mean, std, min, max, seed;
1047 char *random_id = A_surfxml_random_id;
1048 char *random_radical = A_surfxml_random_radical;
1049 char *rd_name = NULL;
1051 mean = surf_parse_get_double(A_surfxml_random_mean);
1052 std = surf_parse_get_double(A_surfxml_random_std_deviation);
1053 min = surf_parse_get_double(A_surfxml_random_min);
1054 max = surf_parse_get_double(A_surfxml_random_max);
1055 seed = surf_parse_get_double(A_surfxml_random_seed);
1059 random_data_t random = xbt_new0(s_random_data_t, 1);
1062 xbt_dynar_t radical_elements;
1066 xbt_dynar_t radical_ends;
1068 switch (A_surfxml_random_generator) {
1069 case AU_surfxml_random_generator:
1070 case A_surfxml_random_generator_NONE:
1071 random->generator = NONE;
1073 case A_surfxml_random_generator_DRAND48:
1074 random->generator = DRAND48;
1076 case A_surfxml_random_generator_RAND:
1077 random->generator = RAND;
1079 case A_surfxml_random_generator_RNGSTREAM:
1080 random->generator = RNGSTREAM;
1083 surf_parse_error("Invalid random generator");
1086 random->seed = seed;
1090 /* Check user stupidities */
1092 THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1094 THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1096 THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1098 /* normalize the mean and standard deviation before storing */
1099 random->mean = (mean - min) / (max - min);
1100 random->std = std / (max - min);
1102 if (random->mean * (1 - random->mean) < random->std * random->std)
1103 THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1104 random->mean, random->std);
1107 ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1108 random_id, random->min, random->max, random->mean, random->std,
1109 (int)random->generator, random->seed, random_radical);
1112 random_value = xbt_dict_new_homogeneous(free);
1114 if (!strcmp(random_radical, "")) {
1115 res = random_generate(random);
1116 rd_value = bprintf("%f", res);
1117 xbt_dict_set(random_value, random_id, rd_value, NULL);
1119 radical_elements = xbt_str_split(random_radical, ",");
1120 xbt_dynar_foreach(radical_elements, iter, groups) {
1121 radical_ends = xbt_str_split(groups, "-");
1122 switch (xbt_dynar_length(radical_ends)) {
1124 xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1125 "Custom Random '%s' already exists !", random_id);
1126 res = random_generate(random);
1128 bprintf("%s%d", random_id,
1129 atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1130 xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1135 start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1136 end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1137 for (i = start; i <= end; i++) {
1138 xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1139 "Custom Random '%s' already exists !", bprintf("%s%d",
1142 res = random_generate(random);
1143 tmpbuf = bprintf("%s%d", random_id, i);
1144 xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1149 XBT_CRITICAL("Malformed radical");
1152 res = random_generate(random);
1153 rd_name = bprintf("%s_router", random_id);
1154 rd_value = bprintf("%f", res);
1155 xbt_dict_set(random_value, rd_name, rd_value, NULL);
1157 xbt_dynar_free(&radical_ends);
1160 xbt_dynar_free(&radical_elements);
1164 void routing_register_callbacks()
1166 sg_platf_host_add_cb(parse_S_host);
1167 sg_platf_router_add_cb(parse_S_router);
1169 surfxml_add_callback(STag_surfxml_random_cb_list, &routing_parse_Srandom);
1171 surfxml_add_callback(STag_surfxml_route_cb_list, &routing_parse_S_route);
1172 surfxml_add_callback(STag_surfxml_ASroute_cb_list, &routing_parse_S_ASroute);
1173 surfxml_add_callback(STag_surfxml_bypassRoute_cb_list,
1174 &routing_parse_S_bypassRoute);
1175 surfxml_add_callback(STag_surfxml_bypassASroute_cb_list,
1176 &routing_parse_S_bypassASroute);
1178 surfxml_add_callback(ETag_surfxml_link_ctn_cb_list, &routing_parse_link_ctn);
1180 surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_parse_E_route);
1181 surfxml_add_callback(ETag_surfxml_ASroute_cb_list, &routing_parse_E_ASroute);
1182 surfxml_add_callback(ETag_surfxml_bypassRoute_cb_list,
1183 &routing_parse_E_bypassRoute);
1184 surfxml_add_callback(ETag_surfxml_bypassASroute_cb_list,
1185 &routing_parse_E_bypassASroute);
1187 sg_platf_cluster_add_cb(routing_parse_cluster);
1189 sg_platf_peer_add_cb(routing_parse_peer);
1190 sg_platf_postparse_add_cb(routing_parse_postparse);
1192 /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1193 sg_platf_AS_end_add_cb(routing_AS_end);
1194 sg_platf_AS_begin_add_cb(routing_AS_begin);
1197 instr_routing_define_callbacks();
1202 * \brief Recursive function for finalize
1204 * \param rc the source host name
1206 * This fuction is call by "finalize". It allow to finalize the
1207 * AS or routing components. It delete all the structures.
1209 static void finalize_rec(AS_t as) {
1210 xbt_dict_cursor_t cursor = NULL;
1214 xbt_dict_foreach(as->routing_sons, cursor, key, elem) {
1221 /** \brief Frees all memory allocated by the routing module */
1222 void routing_exit(void) {
1223 if (!global_routing)
1225 xbt_dynar_free(&global_routing->last_route);
1226 finalize_rec(global_routing->root);
1227 xbt_free(global_routing);