+++ /dev/null
-/* 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 <cstdlib>
-
-#include <algorithm>
-
-#include <xbt/dict.h>
-#include <xbt/log.h>
-#include <xbt/sysdep.h>
-#include <xbt/dynar.h>
-#include <xbt/graph.h>
-
-#include "simgrid/platf_interface.h" // platform creation API internal interface
-
-#include "surf_routing_generic.hpp"
-#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 {
-
-AsGeneric::AsGeneric(const char*name)
- : As(name)
-{
-}
-
-AsGeneric::~AsGeneric()
-{
- xbt_dict_free(&bypassRoutes_);
-}
-
-void AsGeneric::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 AsGeneric::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<simgrid::surf::Resource*>(
- 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 AsGeneric::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 AsGeneric::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 AsGeneric::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 AsGeneric::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());
- }
-}
-
-}
-}
