X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/eac77828e5174e46ff0bffc3a17149aaefb62438..018f0c4b9035f7e28796f298e85ab69bb88ca426:/src/surf/surf_routing_RoutedGraph.cpp diff --git a/src/surf/surf_routing_RoutedGraph.cpp b/src/surf/surf_routing_RoutedGraph.cpp new file mode 100644 index 0000000000..c4c598299b --- /dev/null +++ b/src/surf/surf_routing_RoutedGraph.cpp @@ -0,0 +1,429 @@ +/* Copyright (c) 2009-2015. The SimGrid Team. + * All rights reserved. */ + +/* This program is free software; you can redistribute it and/or modify it + * under the terms of the license (GNU LGPL) which comes with this package. */ + +#include "surf_routing_RoutedGraph.hpp" + +#include + +#include + +#include +#include +#include +#include +#include + +#include "simgrid/platf_interface.h" // platform creation API internal interface + +#include "surf_routing_private.hpp" +#include "network_interface.hpp" + +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_routing_generic, surf_route, "Generic implementation of the surf routing"); + +static int no_bypassroute_declared = 1; + +void routing_route_free(sg_platf_route_cbarg_t route) +{ + if (route) { + xbt_dynar_free(&route->link_list); + xbt_free(route); + } +} + +namespace simgrid { +namespace surf { + +AsRoutedGraph::AsRoutedGraph(const char*name) + : As(name) +{ +} + +AsRoutedGraph::~AsRoutedGraph() +{ + xbt_dict_free(&bypassRoutes_); +} + +void AsRoutedGraph::parseBypassroute(sg_platf_route_cbarg_t e_route) +{ + char *src = (char*)(e_route->src); + char *dst = (char*)(e_route->dst); + + if(e_route->gw_dst) + XBT_DEBUG("Load bypassASroute from \"%s\" to \"%s\"", src, dst); + else + XBT_DEBUG("Load bypassRoute from \"%s\" to \"%s\"", src, dst); + xbt_dict_t dict_bypassRoutes = bypassRoutes_; + char *route_name; + + route_name = bprintf("%s#%s", src, dst); + xbt_assert(!xbt_dynar_is_empty(e_route->link_list), + "Invalid count of links, must be greater than zero (%s,%s)", + src, dst); + xbt_assert(!xbt_dict_get_or_null(dict_bypassRoutes, route_name), + "The bypass route between \"%s\"(\"%s\") and \"%s\"(\"%s\") already exists", + src, e_route->gw_src->name(), dst, e_route->gw_dst->name()); + + sg_platf_route_cbarg_t new_e_route = NULL; + if(e_route->gw_dst) + new_e_route = newExtendedRoute(SURF_ROUTING_RECURSIVE, e_route, 1); + else + new_e_route = newExtendedRoute(SURF_ROUTING_BASE, e_route, 1); + + xbt_dynar_free(&(e_route->link_list)); + + xbt_dict_set(dict_bypassRoutes, route_name, new_e_route, NULL); + no_bypassroute_declared = 0; + xbt_free(route_name); +} + +} +} + +/* ************************************************************************** */ +/* *********************** GENERIC BUSINESS METHODS ************************* */ + +static const char *instr_node_name(xbt_node_t node) +{ + void *data = xbt_graph_node_get_data(node); + char *str = (char *) data; + return str; +} + +xbt_node_t new_xbt_graph_node(xbt_graph_t graph, const char *name, + xbt_dict_t nodes) +{ + xbt_node_t ret = (xbt_node_t) xbt_dict_get_or_null(nodes, name); + if (ret) + return ret; + + ret = xbt_graph_new_node(graph, xbt_strdup(name)); + xbt_dict_set(nodes, name, ret, NULL); + return ret; +} + +xbt_edge_t new_xbt_graph_edge(xbt_graph_t graph, xbt_node_t s, xbt_node_t d, + xbt_dict_t edges) +{ + xbt_edge_t ret; + + const char *sn = instr_node_name(s); + const char *dn = instr_node_name(d); + int len = strlen(sn) + strlen(dn) + 1; + char *name = (char *) xbt_malloc(len * sizeof(char)); + + + snprintf(name, len, "%s%s", sn, dn); + ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name); + if (ret == NULL) { + snprintf(name, len, "%s%s", dn, sn); + ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name); + } + + if (ret == NULL) { + ret = xbt_graph_new_edge(graph, s, d, NULL); + xbt_dict_set(edges, name, ret, NULL); + } + free(name); + return ret; +} + +namespace simgrid { +namespace surf { + +void AsRoutedGraph::getGraph(xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) +{ + int src, dst; + int table_size = xbt_dynar_length(vertices_); + + + for (src = 0; src < table_size; src++) { + NetCard *my_src = + xbt_dynar_get_as(vertices_, src, NetCard*); + for (dst = 0; dst < table_size; dst++) { + if (src == dst) + continue; + NetCard *my_dst = + xbt_dynar_get_as(vertices_, dst, NetCard*); + + sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t, 1); + route->link_list = xbt_dynar_new(sizeof(Link*), NULL); + + getRouteAndLatency(my_src, my_dst, route, NULL); + + XBT_DEBUG ("get_route_and_latency %s -> %s", my_src->name(), my_dst->name()); + + unsigned int cpt; + void *link; + + xbt_node_t current, previous; + const char *previous_name, *current_name; + + if (route->gw_src) { + previous = new_xbt_graph_node(graph, route->gw_src->name(), nodes); + previous_name = route->gw_src->name(); + } else { + previous = new_xbt_graph_node(graph, my_src->name(), nodes); + previous_name = my_src->name(); + } + + xbt_dynar_foreach(route->link_list, cpt, link) { + const char *link_name = static_cast( + link)->getName(); + current = new_xbt_graph_node(graph, link_name, nodes); + current_name = link_name; + new_xbt_graph_edge(graph, previous, current, edges); + XBT_DEBUG (" %s -> %s", previous_name, current_name); + previous = current; + previous_name = current_name; + } + + if (route->gw_dst) { + current = new_xbt_graph_node(graph, route->gw_dst->name(), nodes); + current_name = route->gw_dst->name(); + } else { + current = new_xbt_graph_node(graph, my_dst->name(), nodes); + current_name = my_dst->name(); + } + new_xbt_graph_edge(graph, previous, current, edges); + XBT_DEBUG (" %s -> %s", previous_name, current_name); + + xbt_dynar_free (&(route->link_list)); + xbt_free (route); + } + } +} + +sg_platf_route_cbarg_t AsRoutedGraph::getBypassRoute(NetCard *src, + NetCard *dst, + double *lat) +{ + // If never set a bypass route return NULL without any further computations + XBT_DEBUG("generic_get_bypassroute from %s to %s", src->name(), dst->name()); + if (no_bypassroute_declared) + return NULL; + + sg_platf_route_cbarg_t e_route_bypass = NULL; + xbt_dict_t dict_bypassRoutes = bypassRoutes_; + + if(dst->containingAS() == this && src->containingAS() == this ){ + char *route_name = bprintf("%s#%s", src->name(), dst->name()); + e_route_bypass = (sg_platf_route_cbarg_t) xbt_dict_get_or_null(dict_bypassRoutes, route_name); + if(e_route_bypass) + XBT_DEBUG("Find bypass route with %ld links",xbt_dynar_length(e_route_bypass->link_list)); + free(route_name); + } + else{ + As *src_as, *dst_as; + int index_src, index_dst; + xbt_dynar_t path_src = NULL; + xbt_dynar_t path_dst = NULL; + As *current = NULL; + As **current_src = NULL; + As **current_dst = NULL; + + if (src == NULL || dst == NULL) + xbt_die("Ask for route \"from\"(%s) or \"to\"(%s) no found at AS \"%s\"", + src ? src->name() : "(null)", + dst ? dst->name() : "(null)", name_); + + src_as = src->containingAS(); + dst_as = dst->containingAS(); + + /* (2) find the path to the root routing component */ + path_src = xbt_dynar_new(sizeof(As*), NULL); + current = src_as; + while (current != NULL) { + xbt_dynar_push(path_src, ¤t); + current = current->father_; + } + path_dst = xbt_dynar_new(sizeof(As*), NULL); + current = dst_as; + while (current != NULL) { + xbt_dynar_push(path_dst, ¤t); + current = current->father_; + } + + /* (3) find the common father */ + index_src = path_src->used - 1; + index_dst = path_dst->used - 1; + current_src = (As **) xbt_dynar_get_ptr(path_src, index_src); + current_dst = (As **) xbt_dynar_get_ptr(path_dst, index_dst); + while (index_src >= 0 && index_dst >= 0 && *current_src == *current_dst) { + xbt_dynar_pop_ptr(path_src); + xbt_dynar_pop_ptr(path_dst); + index_src--; + index_dst--; + current_src = (As **) xbt_dynar_get_ptr(path_src, index_src); + current_dst = (As **) xbt_dynar_get_ptr(path_dst, index_dst); + } + + int max_index_src = path_src->used - 1; + int max_index_dst = path_dst->used - 1; + + int max_index = std::max(max_index_src, max_index_dst); + int i, max; + + for (max = 0; max <= max_index; max++) { + for (i = 0; i < max; i++) { + if (i <= max_index_src && max <= max_index_dst) { + char *route_name = bprintf("%s#%s", + (*(As **) + (xbt_dynar_get_ptr(path_src, i)))->name_, + (*(As **) + (xbt_dynar_get_ptr(path_dst, max)))->name_); + e_route_bypass = (sg_platf_route_cbarg_t) xbt_dict_get_or_null(dict_bypassRoutes, route_name); + xbt_free(route_name); + } + if (e_route_bypass) + break; + if (max <= max_index_src && i <= max_index_dst) { + char *route_name = bprintf("%s#%s", + (*(As **) + (xbt_dynar_get_ptr(path_src, max)))->name_, + (*(As **) + (xbt_dynar_get_ptr(path_dst, i)))->name_); + e_route_bypass = (sg_platf_route_cbarg_t) xbt_dict_get_or_null(dict_bypassRoutes, route_name); + xbt_free(route_name); + } + if (e_route_bypass) + break; + } + + if (e_route_bypass) + break; + + if (max <= max_index_src && max <= max_index_dst) { + char *route_name = bprintf("%s#%s", + (*(As **) + (xbt_dynar_get_ptr(path_src, max)))->name_, + (*(As **) + (xbt_dynar_get_ptr(path_dst, max)))->name_); + e_route_bypass = (sg_platf_route_cbarg_t) xbt_dict_get_or_null(dict_bypassRoutes, route_name); + xbt_free(route_name); + } + if (e_route_bypass) + break; + } + + xbt_dynar_free(&path_src); + xbt_dynar_free(&path_dst); + } + + sg_platf_route_cbarg_t new_e_route = NULL; + if (e_route_bypass) { + Link* link; + unsigned int cpt = 0; + new_e_route = xbt_new0(s_sg_platf_route_cbarg_t, 1); + new_e_route->gw_src = e_route_bypass->gw_src; + new_e_route->gw_dst = e_route_bypass->gw_dst; + new_e_route->link_list = + xbt_dynar_new(sizeof(Link*), NULL); + xbt_dynar_foreach(e_route_bypass->link_list, cpt, link) { + xbt_dynar_push(new_e_route->link_list, &link); + if (lat) + *lat += link->getLatency(); + } + } + + return new_e_route; +} + +/* ************************************************************************** */ +/* ************************* GENERIC AUX FUNCTIONS ************************** */ +/* change a route containing link names into a route containing link entities */ +sg_platf_route_cbarg_t AsRoutedGraph::newExtendedRoute(e_surf_routing_hierarchy_t hierarchy, + sg_platf_route_cbarg_t routearg, int change_order) { + + sg_platf_route_cbarg_t result; + char *link_name; + unsigned int cpt; + + result = xbt_new0(s_sg_platf_route_cbarg_t, 1); + result->link_list = xbt_dynar_new(sizeof(Link*), NULL); + + xbt_assert(hierarchy == SURF_ROUTING_BASE + || hierarchy == SURF_ROUTING_RECURSIVE, + "The hierarchy of this AS is neither BASIC nor RECURSIVE, I'm lost here."); + + if (hierarchy == SURF_ROUTING_RECURSIVE) { + + xbt_assert(routearg->gw_src && routearg->gw_dst, "NULL is obviously a deficient gateway"); + + /* remember not erase the gateway names */ + result->gw_src = routearg->gw_src; + result->gw_dst = routearg->gw_dst; + } + + xbt_dynar_foreach(routearg->link_list, cpt, link_name) { + + Link *link = Link::byName(link_name); + if (link) { + if (change_order) + xbt_dynar_push(result->link_list, &link); + else + xbt_dynar_unshift(result->link_list, &link); + } else + THROWF(mismatch_error, 0, "Link '%s' not found", link_name); + } + + return result; +} + +void AsRoutedGraph::getRouteCheckParams(NetCard *src, NetCard *dst) +{ + xbt_assert(src,"Cannot find a route from NULL to %s", dst->name()); + xbt_assert(dst,"Cannot find a route from %s to NULL", src->name()); + + As *src_as = src->containingAS(); + As *dst_as = dst->containingAS(); + + xbt_assert(src_as == dst_as, "Internal error: %s@%s and %s@%s are not in the same AS as expected. Please report that bug.", + src->name(), src_as->name_, dst->name(), dst_as->name_); + + xbt_assert(this == dst_as, + "Internal error: route destination %s@%s is not in AS %s as expected (route source: %s@%s). Please report that bug.", + src->name(), dst->name(), src_as->name_, dst_as->name_, name_); +} +void AsRoutedGraph::addRouteCheckParams(sg_platf_route_cbarg_t route) { + const char *srcName = route->src; + const char *dstName = route->dst; + NetCard *src = sg_netcard_by_name_or_null(srcName); + NetCard *dst = sg_netcard_by_name_or_null(dstName); + + if(!route->gw_dst && !route->gw_src) { + XBT_DEBUG("Load Route from \"%s\" to \"%s\"", srcName, dstName); + xbt_assert(src, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, srcName); + xbt_assert(dst, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, dstName); + xbt_assert(!xbt_dynar_is_empty(route->link_list), "Empty route (between %s and %s) forbidden.", srcName, dstName); + xbt_assert(src->getRcType()==SURF_NETWORK_ELEMENT_HOST || src->getRcType()==SURF_NETWORK_ELEMENT_ROUTER, + "When defining a route, src must be an host or a router but '%s' is not. Did you meant to have an ASroute?", srcName); + xbt_assert(dst->getRcType()==SURF_NETWORK_ELEMENT_HOST || dst->getRcType()==SURF_NETWORK_ELEMENT_ROUTER, + "When defining a route, dst must be an host or a router but '%s' is not. Did you meant to have an ASroute?", dstName); + } else { + XBT_DEBUG("Load ASroute from %s@%s to %s@%s", srcName, route->gw_src->name(), dstName, route->gw_dst->name()); + xbt_assert(src->getRcType()==SURF_NETWORK_ELEMENT_AS, + "When defining an ASroute, src must be an AS but '%s' is not", srcName); + xbt_assert(dst->getRcType()==SURF_NETWORK_ELEMENT_AS, + "When defining an ASroute, dst must be an AS but '%s' is not", dstName); + + xbt_assert(route->gw_src->getRcType()==SURF_NETWORK_ELEMENT_HOST || route->gw_src->getRcType()==SURF_NETWORK_ELEMENT_ROUTER, + "When defining an ASroute, gw_src must be an host or a router but '%s' is not.", srcName); + xbt_assert(route->gw_dst->getRcType()==SURF_NETWORK_ELEMENT_HOST || route->gw_dst->getRcType()==SURF_NETWORK_ELEMENT_ROUTER, + "When defining an ASroute, gw_dst must be an host or a router but '%s' is not.", dstName); + + xbt_assert(route->gw_src != route->gw_dst, "Cannot define an ASroute from '%s' to itself", route->gw_src->name()); + + xbt_assert(src, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", + srcName,route->gw_src->name(), dstName,route->gw_dst->name(), srcName); + xbt_assert(dst, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", + srcName,route->gw_src->name(), dstName,route->gw_dst->name(), dstName); + xbt_assert(!xbt_dynar_is_empty(route->link_list), "Empty route (between %s@%s and %s@%s) forbidden.", + srcName,route->gw_src->name(), dstName,route->gw_dst->name()); + } +} + +} +}