src/plugin.c: Copy the data-sets before inserting them in the list.

Thus memory management is done by `plugin.c' and overwritten DSes can be freed.

diff --git a/src/plugin.c b/src/plugin.c
index 495e169..ee1240c 100644 (file)
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -417,7 +417,32 @@ int plugin_register_shutdown (char *name,
 
 int plugin_register_data_set (const data_set_t *ds)
 {
-       return (register_callback (&list_data_set, ds->type, (void *) ds));
+       data_set_t *ds_copy;
+       int i;
+
+       if (llist_search (list_data_set, ds->type) != NULL)
+       {
+               NOTICE ("Replacing DS `%s' with another version.", ds->type);
+               plugin_unregister_data_set (ds->type);
+       }
+
+       ds_copy = (data_set_t *) malloc (sizeof (data_set_t));
+       if (ds_copy == NULL)
+               return (-1);
+       memcpy(ds_copy, ds, sizeof (data_set_t));
+
+       ds_copy->ds = (data_source_t *) malloc (sizeof (data_source_t)
+                       * ds->ds_num);
+       if (ds_copy->ds == NULL)
+       {
+               free (ds_copy);
+               return (-1);
+       }
+
+       for (i = 0; i < ds->ds_num; i++)
+               memcpy (ds_copy->ds + i, ds->ds + i, sizeof (data_source_t));
+
+       return (register_callback (&list_data_set, ds->type, (void *) ds_copy));
 } /* int plugin_register_data_set */
 
 int plugin_register_log (char *name,
@@ -465,8 +490,23 @@ int plugin_unregister_shutdown (const char *name)
 
 int plugin_unregister_data_set (const char *name)
 {
-       return (plugin_unregister (list_data_set, name));
-}
+       llentry_t  *e;
+       data_set_t *ds;
+
+       e = llist_search (list_data_set, name);
+
+       if (e == NULL)
+               return (-1);
+
+       llist_remove (list_data_set, e);
+       ds = (data_set_t *) e->value;
+       llentry_destroy (e);
+
+       sfree (ds->ds);
+       sfree (ds);
+
+       return (0);
+} /* int plugin_unregister_data_set */
 
 int plugin_unregister_log (const char *name)
 {

diff --git a/src/types_list.c b/src/types_list.c
index 6fce019..3963897 100644 (file)
--- a/src/types_list.c
+++ b/src/types_list.c
@@ -129,8 +129,9 @@ static void parse_line (char *buf, size_t buf_len)
       ds->type, ds->ds_num, (void *) ds->ds);
 
   plugin_register_data_set (ds);
-  /* Do NOT free `ds' and `ds->ds', because it's NOT copied by
-   * `plugin_register_data_set'!. */
+
+  sfree (ds->ds);
+  sfree (ds);
 } /* void parse_line */
 
 static void parse_file (FILE *fh)