From: Jean-Baptiste Hervé <jean-baptiste.herve@esial.net>
Date: Mon, 6 Aug 2012 07:33:08 +0000 (+0200)
Subject: Platform generation : add a function to check if the graph is connected
X-Git-Tag: v3_8~200
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/e93baa98dc235c0aee125a6a2ad7c300fb92645c

Platform generation : add a function to check if the graph is connected
---

diff --git a/include/simgrid/platf_generator.h b/include/simgrid/platf_generator.h
index 38476fc0d7..963603d34e 100644
--- a/include/simgrid/platf_generator.h
+++ b/include/simgrid/platf_generator.h
@@ -55,6 +55,8 @@ XBT_PUBLIC(void) platf_graph_interconnect_zegura(double alpha, double beta, doub
 XBT_PUBLIC(void) platf_graph_interconnect_waxman(double alpha, double beta);
 XBT_PUBLIC(void) platf_graph_interconnect_barabasi(void);
 
+XBT_PUBLIC(int) platf_graph_is_connected(void);
+
 XBT_PUBLIC(void) platf_graph_promote_to_host(context_node_t node, sg_platf_host_cbarg_t parameters);
 XBT_PUBLIC(void) platf_graph_promote_to_cluster(context_node_t node, sg_platf_cluster_cbarg_t parameters);
 
diff --git a/src/surf/platf_generator.c b/src/surf/platf_generator.c
index 1726e963b2..90047bbb35 100644
--- a/src/surf/platf_generator.c
+++ b/src/surf/platf_generator.c
@@ -302,6 +302,21 @@ void platf_graph_interconnect_barabasi(void) {
   }
 }
 
+int platf_graph_is_connected(void) {
+  xbt_dynar_t dynar_nodes = NULL;
+  xbt_node_t graph_node = NULL;
+  context_node_t node_data = NULL;
+  unsigned int i;
+  dynar_nodes = xbt_graph_get_nodes(platform_graph);
+  xbt_dynar_foreach(dynar_nodes, i, graph_node) {
+    node_data = xbt_graph_node_get_data(graph_node);
+    if(node_data->degree==0) {
+      return FALSE;
+    }
+  }
+  return TRUE;
+}
+
 void platf_graph_promote_to_host(context_node_t node, sg_platf_host_cbarg_t parameters) {
   node->kind = HOST;
   memcpy(&(node->host_parameters), parameters, sizeof(s_sg_platf_host_cbarg_t));