/* Copyright (c) 2009-2016. 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 "xbt/dict.h"
#include "xbt/log.h"
#include "xbt/sysdep.h"
#include "xbt/dynar.h"
#include "xbt/graph.h"
#include "src/surf/AsRoutedGraph.hpp"
#include "src/surf/network_interface.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_routing_generic, surf_route, "Generic implementation of the surf routing");
void routing_route_free(sg_platf_route_cbarg_t route)
{
if (route) {
delete route->link_list;
xbt_free(route);
}
}
namespace simgrid {
namespace surf {
AsRoutedGraph::AsRoutedGraph(const char*name)
: AsImpl(name)
{
}
AsRoutedGraph::~AsRoutedGraph()
{
}
}
}
/* ************************************************************************** */
/* *********************** 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)
{
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);
xbt_edge_t 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 {
xbt_dynar_t AsRoutedGraph::getOneLinkRoutes()
{
xbt_dynar_t ret = xbt_dynar_new(sizeof(Onelink*), xbt_free_f);
sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t,1);
route->link_list = new std::vector();
int table_size = (int)xbt_dynar_length(vertices_);
for(int src=0; src < table_size; src++) {
for(int dst=0; dst< table_size; dst++) {
route->link_list->clear();
NetCard *src_elm = xbt_dynar_get_as(vertices_, src, NetCard*);
NetCard *dst_elm = xbt_dynar_get_as(vertices_, dst, NetCard*);
this->getRouteAndLatency(src_elm, dst_elm,route, NULL);
if (route->link_list->size() == 1) {
Link *link = route->link_list->at(0);
Onelink *onelink;
if (hierarchy_ == RoutingMode::base)
onelink = new Onelink(link, src_elm, dst_elm);
else if (hierarchy_ == RoutingMode::recursive)
onelink = new Onelink(link, route->gw_src, route->gw_dst);
else
onelink = new Onelink(link, NULL, NULL);
xbt_dynar_push(ret, &onelink);
}
}
}
return ret;
}
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 = new std::vector();
getRouteAndLatency(my_src, my_dst, route, NULL);
XBT_DEBUG ("get_route_and_latency %s -> %s", my_src->name(), my_dst->name());
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();
}
for (auto link: *route->link_list) {
const char *link_name = 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);
delete route->link_list;
xbt_free (route);
}
}
}
/* ************************************************************************** */
/* ************************* GENERIC AUX FUNCTIONS ************************** */
/* change a route containing link names into a route containing link entities */
sg_platf_route_cbarg_t AsRoutedGraph::newExtendedRoute(RoutingMode hierarchy, sg_platf_route_cbarg_t routearg, int change_order)
{
sg_platf_route_cbarg_t result;
result = xbt_new0(s_sg_platf_route_cbarg_t, 1);
result->link_list = new std::vector();
xbt_assert(hierarchy == RoutingMode::base || hierarchy == RoutingMode::recursive,
"The hierarchy of this AS is neither BASIC nor RECURSIVE, I'm lost here.");
if (hierarchy == RoutingMode::recursive) {
xbt_assert(routearg->gw_src && routearg->gw_dst, "NULL is obviously a deficient gateway");
result->gw_src = routearg->gw_src;
result->gw_dst = routearg->gw_dst;
}
for (auto link : *routearg->link_list) {
if (change_order)
result->link_list->push_back(link);
else
result->link_list->insert(result->link_list->begin(), link);
}
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(! route->link_list->empty(), "Empty route (between %s and %s) forbidden.", srcName, dstName);
xbt_assert(! src->isAS(), "When defining a route, src cannot be an AS such as '%s'. Did you meant to have an ASroute?", srcName);
xbt_assert(! dst->isAS(), "When defining a route, dst cannot be an AS such as '%s'. 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->isAS(), "When defining an ASroute, src must be an AS but '%s' is not", srcName);
xbt_assert(dst->isAS(), "When defining an ASroute, dst must be an AS but '%s' is not", dstName);
xbt_assert(route->gw_src->isHost() || route->gw_src->isRouter(),
"When defining an ASroute, gw_src must be an host or a router but '%s' is not.", srcName);
xbt_assert(route->gw_dst->isHost() || route->gw_dst->isRouter(),
"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(! route->link_list->empty(), "Empty route (between %s@%s and %s@%s) forbidden.",
srcName,route->gw_src->name(), dstName,route->gw_dst->name());
}
}
}
}