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ifcfg-rh: sort paths in read_connections()

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Presort the files in read_connections() as we do it
for keyfile.

This alone has not much consequences. Do this patch first, to
keep the next patches more self-contained.
This commit is contained in:
Thomas Haller 2014-12-11 14:38:03 +01:00
parent a609dd12d3
commit 0cf00ff3aa
1 changed files with 63 additions and 7 deletions
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70
src/settings/plugins/ifcfg-rh/plugin.c
View file

@ -464,6 +464,43 @@ setup_ifcfg_monitoring (SCPluginIfcfg *plugin)
}
}
static GHashTable *
_paths_from_connections (GHashTable *connections)
{
GHashTableIter iter;
NMIfcfgConnection *connection;
GHashTable *paths = g_hash_table_new (g_str_hash, g_str_equal);
g_hash_table_iter_init (&iter, connections);
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &connection)) {
const char *path = nm_settings_connection_get_filename (NM_SETTINGS_CONNECTION (connection));
if (path)
g_hash_table_add (paths, (void *) path);
}
return paths;
}
static int
_sort_paths (const char **f1, const char **f2, GHashTable *paths)
{
struct stat st;
gboolean c1, c2;
gint64 m1, m2;
c1 = !!g_hash_table_contains (paths, *f1);
c2 = !!g_hash_table_contains (paths, *f2);
if (c1 != c2)
return c1 ? -1 : 1;
m1 = stat (*f1, &st) == 0 ? (gint64) st.st_mtime : G_MININT64;
m2 = stat (*f2, &st) == 0 ? (gint64) st.st_mtime : G_MININT64;
if (m1 != m2)
return m1 > m2 ? -1 : 1;
return strcmp (*f1, *f2);
}
static void
read_connections (SCPluginIfcfg *plugin)
{
@ -475,6 +512,9 @@ read_connections (SCPluginIfcfg *plugin)
GHashTableIter iter;
gpointer key, value;
NMIfcfgConnection *connection;
guint i;
GPtrArray *filenames;
GHashTable *paths;
dir = g_dir_open (IFCFG_DIR, 0, &err);
if (!dir) {
@ -491,8 +531,9 @@ read_connections (SCPluginIfcfg *plugin)
g_hash_table_insert (oldconns, g_strdup (ifcfg_path), value);
}
filenames = g_ptr_array_new_with_free_func (g_free);
while ((item = g_dir_read_name (dir))) {
char *full_path, *old_path;
char *full_path;
if (utils_should_ignore_file (item, TRUE))
continue;
@ -501,8 +542,27 @@ read_connections (SCPluginIfcfg *plugin)
full_path = g_build_filename (IFCFG_DIR, item, NULL);
if (!utils_get_ifcfg_name (full_path, TRUE))
goto next;
g_free (full_path);
else
g_ptr_array_add (filenames, full_path);
}
g_dir_close (dir);
/* While reloading, we don't replace connections that we already loaded while
* iterating over the files.
*
* To have sensible, reproducible behavior, sort the paths by last modification
* time prefering older files.
*/
paths = _paths_from_connections (priv->connections);
g_ptr_array_sort_with_data (filenames, (GCompareDataFunc) _sort_paths, paths);
g_hash_table_destroy (paths);
for (i = 0; i < filenames->len; i++) {
const char *full_path;
char *old_path;
full_path = filenames->pdata[i];
connection = g_hash_table_lookup (oldconns, full_path);
g_hash_table_remove (oldconns, full_path);
update_connection (plugin, NULL, full_path, connection, NULL, &old_path, NULL);
@ -511,12 +571,8 @@ read_connections (SCPluginIfcfg *plugin)
g_hash_table_remove (oldconns, old_path);
g_free (old_path);
}
next:
g_free (full_path);
}
g_dir_close (dir);
g_ptr_array_free (filenames, TRUE);
g_hash_table_iter_init (&iter, oldconns);
while (g_hash_table_iter_next (&iter, &key, &value)) {