1 /* Copyright (c) 2009-2011, 2013-2015. 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 "surf_routing.hpp"
9 #include "simgrid/sg_config.h"
10 #include "storage_interface.hpp"
12 #include "src/surf/AsImpl.hpp"
13 #include "src/surf/xml/platf.hpp" // FIXME: move that back to the parsing area
17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
23 simgrid::xbt::signal<void(simgrid::surf::NetCard*)> netcardCreatedCallbacks;
24 simgrid::xbt::signal<void(simgrid::s4u::As*)> asCreatedCallbacks;
27 }} // namespace simgrid::surf
30 * @ingroup SURF_build_api
31 * @brief A library containing all known hosts
33 xbt_dict_t host_list = nullptr;
35 int COORD_HOST_LEVEL=0; //Coordinates level
37 int MSG_FILE_LEVEL; //Msg file level
39 int SIMIX_STORAGE_LEVEL; //Simix storage level
40 int MSG_STORAGE_LEVEL; //Msg storage level
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
48 /** @brief Retrieve a netcard from its name
50 * Netcards are the thing that connect host or routers to the network
52 simgrid::surf::NetCard *sg_netcard_by_name_or_null(const char *name)
54 sg_host_t h = sg_host_by_name(name);
55 simgrid::surf::NetCard *netcard = h==NULL ? NULL: h->pimpl_netcard;
57 netcard = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
62 simgrid::surf::RoutingPlatf *routing_platf = NULL;
65 void sg_platf_new_trace(sg_platf_trace_cbarg_t trace)
67 tmgr_trace_t tmgr_trace;
68 if (trace->file && strcmp(trace->file, "") != 0) {
69 tmgr_trace = tmgr_trace_new_from_file(trace->file);
71 xbt_assert(strcmp(trace->pc_data, ""),
72 "Trace '%s' must have either a content, or point to a file on disk.",trace->id);
73 tmgr_trace = tmgr_trace_new_from_string(trace->id, trace->pc_data, trace->periodicity);
75 xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
82 * \brief Find a route between hosts
84 * \param src the network_element_t for src host
85 * \param dst the network_element_t for dst host
86 * \param route where to store the list of links.
87 * If *route=NULL, create a short lived dynar. Else, fill the provided dynar
88 * \param latency where to store the latency experienced on the path (or NULL if not interested)
89 * It is the caller responsability to initialize latency to 0 (we add to provided route)
92 * walk through the routing components tree and find a route between hosts
93 * by calling each "get_route" function in each routing component.
95 void RoutingPlatf::getRouteAndLatency(NetCard *src, NetCard *dst, std::vector<Link*> * route, double *latency)
97 XBT_DEBUG("getRouteAndLatency from %s to %s", src->name(), dst->name());
99 AsImpl::getRouteRecursive(src, dst, route, latency);
102 static xbt_dynar_t _recursiveGetOneLinkRoutes(surf::AsImpl *as)
104 xbt_dynar_t ret = xbt_dynar_new(sizeof(Onelink*), xbt_free_f);
106 //adding my one link routes
107 xbt_dynar_t onelink_mine = as->getOneLinkRoutes();
109 xbt_dynar_merge(&ret,&onelink_mine);
113 xbt_dict_cursor_t cursor = NULL;
115 xbt_dict_foreach(as->children(), cursor, key, rc_child) {
116 xbt_dynar_t onelink_child = _recursiveGetOneLinkRoutes(rc_child);
118 xbt_dynar_merge(&ret,&onelink_child);
123 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
124 return _recursiveGetOneLinkRoutes(root_);
130 /** @brief create the root AS */
131 void routing_model_create(Link *loopback)
133 routing_platf = new simgrid::surf::RoutingPlatf(loopback);
136 /* ************************************************************************** */
137 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
139 static void check_disk_attachment()
141 xbt_lib_cursor_t cursor;
144 simgrid::surf::NetCard *host_elm;
145 xbt_lib_foreach(storage_lib, cursor, key, data) {
146 if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
147 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));
148 host_elm = sg_netcard_by_name_or_null(storage->p_attach);
150 surf_parse_error("Unable to attach storage %s: host %s doesn't exist.", storage->getName(), storage->p_attach);
155 void routing_register_callbacks()
157 simgrid::surf::on_postparse.connect(check_disk_attachment);
159 instr_routing_define_callbacks();
162 /** \brief Frees all memory allocated by the routing module */
163 void routing_exit(void) {
164 delete routing_platf;
167 simgrid::surf::RoutingPlatf::RoutingPlatf(simgrid::surf::Link *loopback)
168 : loopback_(loopback)
171 simgrid::surf::RoutingPlatf::~RoutingPlatf()