X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/5faf49cdf3f8ad8751317b857a6d3134fe07eda3..7cad4f0d54aafeabb7ee95007fc370514c4923a9:/src/surf/surf_routing_floyd.cpp

diff --git a/src/surf/surf_routing_floyd.cpp b/src/surf/surf_routing_floyd.cpp
index 28d759635c..7d4e9423f8 100644
--- a/src/surf/surf_routing_floyd.cpp
+++ b/src/surf/surf_routing_floyd.cpp
@@ -1,14 +1,318 @@
-#include "surf_routing_private.h"
+/* Copyright (c) 2009-2014. 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_floyd.hpp"
+#include "network_interface.hpp"
 
-extern "C" {
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_floyd, surf, "Routing part of surf");
-}
+
+#define TO_FLOYD_COST(i,j) (p_costTable)[(i)+(j)*table_size]
+#define TO_FLOYD_PRED(i,j) (p_predecessorTable)[(i)+(j)*table_size]
+#define TO_FLOYD_LINK(i,j) (p_linkTable)[(i)+(j)*table_size]
 
 AS_t model_floyd_create(void)
-{//FIXME:
+{
+  return new AsFloyd();
 }
 
 void model_floyd_end(AS_t current_routing)
 {
-//FIXME:
+  static_cast<AsFloydPtr>(current_routing)->end();
+}
+
+AsFloyd::AsFloyd(): AsGeneric() {
+  p_predecessorTable = NULL;
+  p_costTable = NULL;
+  p_linkTable = NULL;
+}
+
+AsFloyd::~AsFloyd(){
+  int i, j;
+  int table_size;
+  table_size = (int)xbt_dynar_length(p_indexNetworkElm);
+    /* Delete link_table */
+    for (i = 0; i < table_size; i++)
+      for (j = 0; j < table_size; j++)
+        generic_free_route(TO_FLOYD_LINK(i, j));
+    xbt_free(p_linkTable);
+    /* Delete bypass dict */
+    xbt_dict_free(&p_bypassRoutes);
+    /* Delete predecessor and cost table */
+    xbt_free(p_predecessorTable);
+    xbt_free(p_costTable);
+}
+
+/* Business methods */
+xbt_dynar_t AsFloyd::getOneLinkRoutes()
+{
+  xbt_dynar_t ret = xbt_dynar_new(sizeof(OnelinkPtr), xbt_free_f);
+  sg_platf_route_cbarg_t route =   xbt_new0(s_sg_platf_route_cbarg_t, 1);
+  route->link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
+
+  int src,dst;
+  sg_routing_edge_t src_elm, dst_elm;
+  int table_size = xbt_dynar_length(p_indexNetworkElm);
+  for(src=0; src < table_size; src++) {
+    for(dst=0; dst< table_size; dst++) {
+      xbt_dynar_reset(route->link_list);
+      src_elm = xbt_dynar_get_as(p_indexNetworkElm, src, RoutingEdgePtr);
+      dst_elm = xbt_dynar_get_as(p_indexNetworkElm, dst, RoutingEdgePtr);
+      this->getRouteAndLatency(src_elm, dst_elm, route, NULL);
+
+      if (xbt_dynar_length(route->link_list) == 1) {
+        void *link = *(void **) xbt_dynar_get_ptr(route->link_list, 0);
+        OnelinkPtr onelink;
+        if (p_hierarchy == SURF_ROUTING_BASE)
+          onelink = new Onelink(link, src_elm, dst_elm);
+        else if (p_hierarchy == SURF_ROUTING_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 AsFloyd::getRouteAndLatency(RoutingEdgePtr src, RoutingEdgePtr dst, sg_platf_route_cbarg_t res, double *lat)
+{
+
+  /* set utils vars */
+  size_t table_size = xbt_dynar_length(p_indexNetworkElm);
+
+  this->srcDstCheck(src, dst);
+
+  /* create a result route */
+  xbt_dynar_t route_stack = xbt_dynar_new(sizeof(sg_platf_route_cbarg_t), NULL);
+  int pred;
+  int cur = dst->getId();
+  do {
+    pred = TO_FLOYD_PRED(src->getId(), cur);
+    if (pred == -1)
+      THROWF(arg_error, 0, "No route from '%s' to '%s'", src->getName(), dst->getName());
+    xbt_dynar_push_as(route_stack, sg_platf_route_cbarg_t, TO_FLOYD_LINK(pred, cur));
+    cur = pred;
+  } while (cur != src->getId());
+
+  if (p_hierarchy == SURF_ROUTING_RECURSIVE) {
+    res->gw_src = xbt_dynar_getlast_as(route_stack, sg_platf_route_cbarg_t)->gw_src;
+    res->gw_dst = xbt_dynar_getfirst_as(route_stack, sg_platf_route_cbarg_t)->gw_dst;
+  }
+
+  sg_routing_edge_t prev_dst_gw = NULL;
+  while (!xbt_dynar_is_empty(route_stack)) {
+    sg_platf_route_cbarg_t e_route = xbt_dynar_pop_as(route_stack, sg_platf_route_cbarg_t);
+    xbt_dynar_t links;
+    void *link;
+    unsigned int cpt;
+
+    if (p_hierarchy == SURF_ROUTING_RECURSIVE && prev_dst_gw != NULL
+        && strcmp(prev_dst_gw->getName(), e_route->gw_src->getName())) {
+      routing_get_route_and_latency(prev_dst_gw, e_route->gw_src,
+                                    &res->link_list, lat);
+    }
+
+    links = e_route->link_list;
+    xbt_dynar_foreach(links, cpt, link) {
+      xbt_dynar_push_as(res->link_list, sg_routing_link_t, link);
+      if (lat)
+        *lat += static_cast<NetworkLinkPtr>(link)->getLatency();
+    }
+
+    prev_dst_gw = e_route->gw_dst;
+  }
+  xbt_dynar_free(&route_stack);
+}
+
+static int floyd_pointer_resource_cmp(const void *a, const void *b) {
+  return a != b;
+}
+
+void AsFloyd::parseASroute(sg_platf_route_cbarg_t route){
+  parseRoute(route);
+}
+
+void AsFloyd::parseRoute(sg_platf_route_cbarg_t route)
+{
+  char *src = (char*)(route->src);
+  char *dst = (char*)(route->dst);
+
+  int as_route = 0;
+
+  /* set the size of table routing */
+  int table_size = (int)xbt_dynar_length(p_indexNetworkElm);
+  RoutingEdgePtr src_net_elm, dst_net_elm;
+
+  src_net_elm = sg_routing_edge_by_name_or_null(src);
+  dst_net_elm = sg_routing_edge_by_name_or_null(dst);
+
+  xbt_assert(src_net_elm, "Network elements %s not found", src);
+  xbt_assert(dst_net_elm, "Network elements %s not found", dst);
+
+  if(!p_linkTable)
+  {
+    int i,j;
+    /* Create Cost, Predecessor and Link tables */
+    p_costTable = xbt_new0(double, table_size * table_size);       /* link cost from host to host */
+    p_predecessorTable = xbt_new0(int, table_size * table_size);  /* predecessor host numbers */
+    p_linkTable = xbt_new0(sg_platf_route_cbarg_t, table_size * table_size);    /* actual link between src and dst */
+
+    /* Initialize costs and predecessors */
+    for (i = 0; i < table_size; i++)
+      for (j = 0; j < table_size; j++) {
+        TO_FLOYD_COST(i, j) = DBL_MAX;
+        TO_FLOYD_PRED(i, j) = -1;
+        TO_FLOYD_LINK(i, j) = NULL;       /* fixed, missing in the previous version */
+      }
+  }
+  if(!route->gw_dst && !route->gw_src)
+    XBT_DEBUG("Load Route from \"%s\" to \"%s\"", src, dst);
+  else{
+    as_route = 1;
+    XBT_DEBUG("Load ASroute from \"%s(%s)\" to \"%s(%s)\"", src,
+        route->gw_src->getName(), dst, route->gw_dst->getName());
+    if(route->gw_dst->getRcType() == SURF_NETWORK_ELEMENT_NULL)
+      surf_parse_error("The dst_gateway '%s' does not exist!",route->gw_dst->getName());
+    if(route->gw_src->getRcType() == SURF_NETWORK_ELEMENT_NULL)
+      surf_parse_error("The src_gateway '%s' does not exist!",route->gw_src->getName());
+  }
+
+  if(TO_FLOYD_LINK(src_net_elm->getId(), dst_net_elm->getId()))
+  {
+
+    char * link_name;
+    unsigned int cpt;
+    xbt_dynar_t link_route_to_test = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
+    xbt_dynar_foreach(route->link_list,cpt,link_name)
+    {
+      void *link = xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
+      xbt_assert(link,"Link : '%s' doesn't exists.",link_name);
+      xbt_dynar_push(link_route_to_test,&link);
+    }
+    xbt_assert(!xbt_dynar_compare(
+        TO_FLOYD_LINK(src_net_elm->getId(), dst_net_elm->getId())->link_list,
+        link_route_to_test,
+        (int_f_cpvoid_cpvoid_t) floyd_pointer_resource_cmp),
+        "The route between \"%s\" and \"%s\" already exists", src,dst);
+  }
+  else
+  {
+    TO_FLOYD_LINK(src_net_elm->getId(), dst_net_elm->getId()) =
+        newExtendedRoute(p_hierarchy, route, 1);
+    TO_FLOYD_PRED(src_net_elm->getId(), dst_net_elm->getId()) = src_net_elm->getId();
+    TO_FLOYD_COST(src_net_elm->getId(), dst_net_elm->getId()) =
+        ((TO_FLOYD_LINK(src_net_elm->getId(), dst_net_elm->getId()))->link_list)->used;   /* count of links, old model assume 1 */
+  }
+
+  if ( (route->symmetrical == TRUE && as_route == 0)
+      || (route->symmetrical == TRUE && as_route == 1)
+  )
+  {
+    if(TO_FLOYD_LINK(dst_net_elm->getId(), src_net_elm->getId()))
+    {
+      if(!route->gw_dst && !route->gw_src)
+        XBT_DEBUG("See Route from \"%s\" to \"%s\"", dst, src);
+      else
+        XBT_DEBUG("See ASroute from \"%s(%s)\" to \"%s(%s)\"", dst,
+            route->gw_src->getName(), src, route->gw_dst->getName());
+      char * link_name;
+      unsigned int i;
+      xbt_dynar_t link_route_to_test = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
+      for(i=xbt_dynar_length(route->link_list) ;i>0 ;i--)
+      {
+        link_name = xbt_dynar_get_as(route->link_list,i-1,char *);
+        void *link = xbt_lib_get_or_null(link_lib, link_name, SURF_LINK_LEVEL);
+        xbt_assert(link,"Link : '%s' doesn't exists.",link_name);
+        xbt_dynar_push(link_route_to_test,&link);
+      }
+      xbt_assert(!xbt_dynar_compare(
+          TO_FLOYD_LINK(dst_net_elm->getId(), src_net_elm->getId())->link_list,
+          link_route_to_test,
+          (int_f_cpvoid_cpvoid_t) floyd_pointer_resource_cmp),
+          "The route between \"%s\" and \"%s\" already exists", src,dst);
+    }
+    else
+    {
+      if(route->gw_dst && route->gw_src)
+      {
+        sg_routing_edge_t gw_src = route->gw_src;
+        sg_routing_edge_t gw_dst = route->gw_dst;
+        route->gw_src = gw_dst;
+        route->gw_dst = gw_src;
+      }
+
+      if(!route->gw_src && !route->gw_dst)
+        XBT_DEBUG("Load Route from \"%s\" to \"%s\"", dst, src);
+      else
+        XBT_DEBUG("Load ASroute from \"%s(%s)\" to \"%s(%s)\"", dst,
+            route->gw_src->getName(), src, route->gw_dst->getName());
+
+      TO_FLOYD_LINK(dst_net_elm->getId(), src_net_elm->getId()) =
+    		 newExtendedRoute(p_hierarchy, route, 0);
+      TO_FLOYD_PRED(dst_net_elm->getId(), src_net_elm->getId()) = dst_net_elm->getId();
+      TO_FLOYD_COST(dst_net_elm->getId(), src_net_elm->getId()) =
+          ((TO_FLOYD_LINK(dst_net_elm->getId(), src_net_elm->getId()))->link_list)->used;   /* count of links, old model assume 1 */
+    }
+  }
+  xbt_dynar_free(&route->link_list);
+}
+
+void AsFloyd::end(){
+  unsigned int i, j, a, b, c;
+
+  /* set the size of table routing */
+  size_t table_size = xbt_dynar_length(p_indexNetworkElm);
+
+  if(!p_linkTable) {
+    /* Create Cost, Predecessor and Link tables */
+    p_costTable = xbt_new0(double, table_size * table_size);       /* link cost from host to host */
+    p_predecessorTable = xbt_new0(int, table_size * table_size);  /* predecessor host numbers */
+    p_linkTable = xbt_new0(sg_platf_route_cbarg_t, table_size * table_size);    /* actual link between src and dst */
+
+    /* Initialize costs and predecessors */
+    for (i = 0; i < table_size; i++)
+      for (j = 0; j < table_size; j++) {
+        TO_FLOYD_COST(i, j) = DBL_MAX;
+        TO_FLOYD_PRED(i, j) = -1;
+        TO_FLOYD_LINK(i, j) = NULL;       /* fixed, missing in the previous version */
+      }
+  }
+
+  /* Add the loopback if needed */
+  if (routing_platf->p_loopback && p_hierarchy == SURF_ROUTING_BASE) {
+    for (i = 0; i < table_size; i++) {
+      sg_platf_route_cbarg_t e_route = TO_FLOYD_LINK(i, i);
+      if (!e_route) {
+        e_route = xbt_new0(s_sg_platf_route_cbarg_t, 1);
+        e_route->gw_src = NULL;
+        e_route->gw_dst = NULL;
+        e_route->link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
+        xbt_dynar_push(e_route->link_list, &routing_platf->p_loopback);
+        TO_FLOYD_LINK(i, i) = e_route;
+        TO_FLOYD_PRED(i, i) = i;
+        TO_FLOYD_COST(i, i) = 1;
+      }
+    }
+  }
+  /* Calculate path costs */
+  for (c = 0; c < table_size; c++) {
+    for (a = 0; a < table_size; a++) {
+      for (b = 0; b < table_size; b++) {
+        if (TO_FLOYD_COST(a, c) < DBL_MAX && TO_FLOYD_COST(c, b) < DBL_MAX) {
+          if (TO_FLOYD_COST(a, b) == DBL_MAX ||
+              (TO_FLOYD_COST(a, c) + TO_FLOYD_COST(c, b) <
+                  TO_FLOYD_COST(a, b))) {
+            TO_FLOYD_COST(a, b) =
+                TO_FLOYD_COST(a, c) + TO_FLOYD_COST(c, b);
+            TO_FLOYD_PRED(a, b) = TO_FLOYD_PRED(c, b);
+          }
+        }
+      }
+    }
+  }
 }