int platf_graph_is_connected(void) {
xbt_dynar_t dynar_nodes = NULL;
+ xbt_dynar_t connected_nodes = NULL;
+ xbt_dynar_t outgoing_edges = NULL;
xbt_node_t graph_node = NULL;
+ xbt_edge_t outedge = NULL;
+ unsigned long iterator;
+ unsigned int i;
+ dynar_nodes = xbt_graph_get_nodes(platform_graph);
+ connected_nodes = xbt_dynar_new(sizeof(xbt_node_t), NULL);
+
+ //Initialize the connected node array with the first node
+ xbt_dynar_get_cpy(dynar_nodes, 0, &graph_node);
+ xbt_dynar_push(connected_nodes, &graph_node);
+ iterator = 0;
+ do {
+ //Get the next node
+ xbt_dynar_get_cpy(connected_nodes, iterator, &graph_node);
+
+ //add all the linked nodes to the connected node array
+ outgoing_edges = xbt_graph_node_get_outedges(graph_node);
+ xbt_dynar_foreach(outgoing_edges, i, outedge) {
+ xbt_node_t src = xbt_graph_edge_get_source(outedge);
+ xbt_node_t dst = xbt_graph_edge_get_target(outedge);
+ if(!xbt_dynar_member(connected_nodes, &src)) {
+ xbt_dynar_push(connected_nodes, &src);
+ }
+ if(!xbt_dynar_member(connected_nodes, &dst)) {
+ xbt_dynar_push(connected_nodes, &dst);
+ }
+ }
+ } while(++iterator < xbt_dynar_length(connected_nodes));
+
+ // The graph is connected if the connected node array has the same length
+ // as the graph node array
+ return xbt_dynar_length(connected_nodes) == xbt_dynar_length(dynar_nodes);
+}
+
+void platf_graph_clear_links(void) {
+ xbt_dynar_t dynar_nodes = NULL;
+ xbt_dynar_t dynar_edges = NULL;
+ xbt_node_t graph_node = NULL;
+ xbt_edge_t graph_edge = NULL;
context_node_t node_data = NULL;
unsigned int i;
+
+ //Delete edges from the graph
+ dynar_edges = xbt_graph_get_edges(platform_graph);
+ xbt_dynar_foreach(dynar_edges, i, graph_edge) {
+ xbt_graph_free_edge(platform_graph, graph_edge, xbt_free);
+ }
+
+ //All the nodes will be of degree 0
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;
- }
+ node_data->degree = 0;
}
- return TRUE;
}
void platf_graph_promote_to_host(context_node_t node, sg_platf_host_cbarg_t parameters) {
