-
-/** @brief Export the given graph in the GraphXML format */
-void xbt_graph_export_graphxml(xbt_graph_t g, const char *filename,
- const char *(node_name) (xbt_node_t),
- const char *(edge_name) (xbt_edge_t),
- const char *(node_data_print) (void *),
- const char *(edge_data_print) (void *))
-{
- unsigned int cursor = 0;
- xbt_node_t node = NULL;
- xbt_edge_t edge = NULL;
- FILE *file = NULL;
- const char *name = NULL;
-
- file = fopen(filename, "w");
- xbt_assert(file, "Failed to open %s \n", filename);
-
- fprintf(file, "<?xml version='1.0'?>\n");
- fprintf(file, "<!DOCTYPE graph SYSTEM \"graphxml.dtd\">\n");
- if (g->directed)
- fprintf(file, "<graph isDirected=\"true\">\n");
- else
- fprintf(file, "<graph isDirected=\"false\">\n");
- xbt_dynar_foreach(g->nodes, cursor, node) {
- fprintf(file, " <node name=\"%p\" ", node);
- if ((node_name) && ((name = node_name(node))))
- fprintf(file, "label=\"%s\" ", name);
- if ((node_data_print) && ((name = node_data_print(node->data))))
- fprintf(file, "data=\"%s\" ", name);
- fprintf(file, "/>\n");
- }
- xbt_dynar_foreach(g->edges, cursor, edge) {
- fprintf(file, " <edge source=\"%p\" target =\"%p\" ",
- edge->src, edge->dst);
- if ((edge_name) && ((name = edge_name(edge))))
- fprintf(file, "label=\"%s\" ", name);
- if (edge->length >= 0.0)
- fprintf(file, "length=\"%g\" ", edge->length);
- if ((edge_data_print) && ((name = edge_data_print(edge->data))))
- fprintf(file, "data=\"%s\" ", name);
- fprintf(file, "/>\n");
- }
- fprintf(file, "</graph>\n");
- fclose(file);
-}
-
-/** @brief Load a graph from a file (in the SimGrid Graph format) */
-xbt_graph_t xbt_graph_load (const char *filename)
-{
- FILE *file = NULL;
- ssize_t read;
- file = fopen (filename, "r");
- xbt_assert(file, "Failed to open %s \n", filename);
-
- xbt_dict_t nodes_dict = xbt_dict_new_homogeneous(NULL);
- xbt_graph_t ret = xbt_graph_new_graph (0, NULL);
-
- //read the number of nodes
- size_t size;
- char *nnodes_str = NULL;
- read = xbt_getline (&nnodes_str, &size, file);
- if (read == -1)
- THROWF(system_error, 0, "xbt_getline failed to read the number of nodes (errno = %d)", errno);
- int i, nnodes = atoi (nnodes_str);
- free (nnodes_str);
-
- //read all nodes
- for (i = 0; i < nnodes; i++){
- char *node_str = NULL;
- read = xbt_getline (&node_str, &size, file);
- if (read == -1)
- THROWF(system_error, 0, "xbt_getline failed to read all nodes (errno = %d)", errno);
- xbt_node_t n;
- char *name = xbt_strdup (node_str);
- xbt_str_subst (name, '\n', '\0', 0);
- n = xbt_graph_new_node (ret, name);
- xbt_dict_set (nodes_dict, name, n, NULL);
- free (node_str);
- }
-
- //read the number of edges
- char *nedges_str = NULL;
- read = xbt_getline (&nedges_str, &size, file);
- if (read == -1)
- THROWF(system_error, 0, "xbt_getline failed to read the number of edges (errno = %d)", errno);
- int nedges = atoi (nedges_str);
- free (nedges_str);
-
- //read all edges
- for (i = 0; i < nedges; i++){
- char *edge_str = NULL, edge_id[200], node_source[200], node_target[200];
- read = xbt_getline (&edge_str, &size, file);
- if (read == -1)
- THROWF(system_error, 0, "xbt_getline failed to read all edges (errno = %d)", errno);
- sscanf (edge_str, "%s %s %s", edge_id, node_source, node_target);
- free (edge_str);
- xbt_str_subst (edge_id, '\n', '\0', 0);
- xbt_str_subst (node_source, '\n', '\0', 0);
- xbt_str_subst (node_target, '\n', '\0', 0);
-
- xbt_node_t source = xbt_dict_get (nodes_dict, node_source);
- xbt_node_t target = xbt_dict_get (nodes_dict, node_target);
- xbt_graph_new_edge (ret, source, target, xbt_strdup(edge_id));
- }
- xbt_dict_free (&nodes_dict);
- return ret;
-}
-
-/** @brief Save a graph from a file (in the SimGrid Graph format) */
-void xbt_graph_save (xbt_graph_t span,
- const char *filename,
- const char *(nname) (xbt_node_t),
- const char *(ename) (xbt_edge_t))
-{
- FILE *file = NULL;
- file = fopen(filename, "w");
- xbt_assert(file, "Failed to open %s \n", filename);
-
- xbt_dynar_t nodes = xbt_graph_get_nodes (span);
- xbt_dynar_t edges = xbt_graph_get_edges (span);
- unsigned int cpt;
- xbt_node_t node;
- fprintf (file, "%lu\n", xbt_dynar_length (nodes));
- xbt_dynar_foreach (nodes, cpt, node) {
- if (nname){
- fprintf (file, "%s\n", nname(node));
- }else{
- fprintf (file, "%p\n", node);
- }
- }
- fprintf (file, "%lu\n", xbt_dynar_length (edges));
- xbt_edge_t edge;
- xbt_dynar_foreach (edges, cpt, edge) {
- xbt_node_t source = xbt_graph_edge_get_source (edge);
- xbt_node_t target = xbt_graph_edge_get_target (edge);
- if (ename){
- if (nname){
- fprintf (file, "%s %s %s\n", ename(edge), nname(source), nname(target));
- }else{
- fprintf (file, "%s %p %p\n", ename(edge), source, target);
- }
- }else{
- if (nname){
- fprintf (file, "%p %s %s\n", edge, nname(source), nname(target));
- }else{
- fprintf (file, "%p %p %p\n", edge, source, target);
- }
- }
- }
- fclose (file);
-}
