X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/d5a1db1d0b268cb9ed8f37246fd970fce7631943..6e5cfd7ff86900354c20502af95ee5f751492753:/src/xbt/graph.c

diff --git a/src/xbt/graph.c b/src/xbt/graph.c
index e3ce876fd2..d2f2edfd37 100644
--- a/src/xbt/graph.c
+++ b/src/xbt/graph.c
@@ -6,6 +6,8 @@
 /* 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_config.h" /* getline */
+#include <errno.h>
 #include <stdlib.h>
 #include "xbt/sysdep.h"
 #include "xbt/log.h"
@@ -576,10 +578,8 @@ static void __parse_node(void)
   if (__parse_node_label_and_data)
     node->data = __parse_node_label_and_data(node, A_graphxml_node_label,
                                              A_graphxml_node_data);
-  xbt_graph_parse_get_double(&(node->position_x),
-                             A_graphxml_node_position_x);
-  xbt_graph_parse_get_double(&(node->position_y),
-                             A_graphxml_node_position_y);
+  node->position_x = xbt_graph_parse_get_double(A_graphxml_node_position_x);
+  node->position_y = xbt_graph_parse_get_double(A_graphxml_node_position_y);
 
   xbt_dict_set(parsed_nodes, A_graphxml_node_name, (void *) node, NULL);
 }
@@ -597,7 +597,7 @@ static void __parse_edge(void)
     edge->data = __parse_edge_label_and_data(edge, A_graphxml_edge_label,
                                              A_graphxml_edge_data);
 
-  xbt_graph_parse_get_double(&(edge->length), A_graphxml_edge_length);
+  edge->length = xbt_graph_parse_get_double(A_graphxml_edge_length);
 
   XBT_DEBUG("<edge  source=\"%s\" target=\"%s\" length=\"%f\"/>",
          (char *) (edge->src)->data,
@@ -627,7 +627,7 @@ xbt_graph_t xbt_graph_read(const char *filename,
   ETag_graphxml_edge_fun = __parse_edge;
 
   xbt_graph_parse_open(filename);
-  int res;
+  _XBT_GNUC_UNUSED int res;
   res = (*xbt_graph_parse) ();
   xbt_assert(!res, "Parse error in %s", filename);
   xbt_graph_parse_close();
@@ -731,6 +731,7 @@ void xbt_graph_export_graphxml(xbt_graph_t g, const char *filename,
 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);
 
@@ -740,14 +741,18 @@ xbt_graph_t xbt_graph_load (const char *filename)
   //read the number of nodes
   size_t size;
   char *nnodes_str = NULL;
-  getline (&nnodes_str, &size, file);
+  read = getline (&nnodes_str, &size, file);
+  if (read == -1)
+    THROWF(system_error, 0, "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;
-    getline (&node_str, &size, file);
+    read = getline (&node_str, &size, file);
+    if (read == -1)
+      THROWF(system_error, 0, "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);
@@ -758,14 +763,18 @@ xbt_graph_t xbt_graph_load (const char *filename)
 
   //read the number of edges
   char *nedges_str = NULL;
-  getline (&nedges_str, &size, file);
+  read = getline (&nedges_str, &size, file);
+  if (read == -1)
+    THROWF(system_error, 0, "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];
-    getline (&edge_str, &size, file);
+    read = getline (&edge_str, &size, file);
+    if (read == -1)
+      THROWF(system_error, 0, "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);
@@ -774,8 +783,7 @@ xbt_graph_t xbt_graph_load (const char *filename)
 
     xbt_node_t source = xbt_dict_get (nodes_dict, node_source);
     xbt_node_t target = xbt_dict_get (nodes_dict, node_target);
-    xbt_edge_t e;
-    e = xbt_graph_new_edge (ret, source, target, xbt_strdup(edge_id));
+    xbt_graph_new_edge (ret, source, target, xbt_strdup(edge_id));
   }
   xbt_dict_free (&nodes_dict);
   return ret;