/* Copyright (c) 2006-2016. 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 "simgrid/s4u/host.hpp"
#include "simdag_private.hpp"
#include "src/surf/HostImpl.hpp"
#include "surf/surf.h"
/** @brief Returns the route between two workstations
*
* Use SD_route_get_size() to know the array size.
*
* \param src a host
* \param dst another host
* \return an array of the \ref SD_link_t composing the route
* \see SD_route_get_size(), SD_link_t
*/
SD_link_t *SD_route_get_list(sg_host_t src, sg_host_t dst)
{
std::vector *route = new std::vector();
routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, route, nullptr);
int cpt=0;
SD_link_t *list = xbt_new(SD_link_t, route->size());
for (auto link : *route){
list[cpt] = link;
cpt++;
}
delete route;
return list;
}
/**
* \brief Returns the number of links on the route between two workstations
*
* \param src a workstation
* \param dst another workstation
* \return the number of links on the route between these two workstations
* \see SD_route_get_list()
*/
int SD_route_get_size(sg_host_t src, sg_host_t dst)
{
std::vector *route = new std::vector();
routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, route, nullptr);
int size = route->size();
delete route;
return size;
}
/**
* \brief Returns the latency of the route between two workstations.
*
* \param src the first workstation
* \param dst the second workstation
* \return the latency of the route between the two workstations (in seconds)
* \see SD_route_get_bandwidth()
*/
double SD_route_get_latency(sg_host_t src, sg_host_t dst)
{
double latency = 0;
std::vector *route = new std::vector();
routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, route, &latency);
delete route;
return latency;
}
/**
* \brief Returns the bandwidth of the route between two workstations,
* i.e. the minimum link bandwidth of all between the workstations.
*
* \param src the first workstation
* \param dst the second workstation
* \return the bandwidth of the route between the two workstations (in bytes/second)
* \see SD_route_get_latency()
*/
double SD_route_get_bandwidth(sg_host_t src, sg_host_t dst)
{
double min_bandwidth = -1.0;
std::vector *route = new std::vector();
routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, route, nullptr);
for (auto link : *route) {
double bandwidth = sg_link_bandwidth(link);
if (bandwidth < min_bandwidth || min_bandwidth < 0.0)
min_bandwidth = bandwidth;
}
delete route;
return min_bandwidth;
}