[gvfs/metadata: 6/12] Add placeholder implementation of metadata adding to gvfs

[Alexander Larsson <alexl src gnome org>]

commit 77be542f6c5246f45586de0c3593955297f909fe
Author: Alexander Larsson <alexl redhat com>
Date:   Thu Jun 18 09:10:33 2009 +0200

    Add placeholder implementation of metadata adding to gvfs

 client/gdaemonvfs.c |   42 ++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 42 insertions(+), 0 deletions(-)
---
diff --git a/client/gdaemonvfs.c b/client/gdaemonvfs.c
index c9f2cc9..bbcda2c 100644
--- a/client/gdaemonvfs.c
+++ b/client/gdaemonvfs.c
@@ -1066,6 +1066,47 @@ g_daemon_vfs_parse_name (GVfs       *vfs,
   return file;
 }
 
+static void
+g_daemon_vfs_add_extra_info_for_file (GVfs       *vfs,
+				      GFileInfo  *info,
+				      GFileAttributeMatcher *matcher,
+				      const char *filename,
+				      guint64     device,
+				      guint64     parent_device_or_zero,
+				      gpointer    *extra_data)
+{
+  MetaLookupCache *cache;
+  const char *first;
+  gboolean all;
+
+  /* Filename may or may not be a symlink, but we should not follow it.
+     However, we want to follow symlinks for all parents that have the same
+     device node */
+  all = g_file_attribute_matcher_enumerate_namespace (matcher, "metadata");
+
+  first = NULL;
+  if (!all)
+    {
+      first = g_file_attribute_matcher_enumerate_next (matcher);
+
+      if (first == NULL)
+	return; /* No match */
+    }
+
+  if (*extra_data == NULL)
+    *extra_data = meta_lookup_cache_new ();
+  cache = (MetaLookupCache *)*extra_data;
+
+  g_file_info_set_attribute_string (info, "metadata::test", "Some value");
+}
+
+static void
+free_extra_data (GVfs       *vfs,
+		 gpointer    extra_data)
+{
+  meta_lookup_cache_free (extra_data);
+}
+
 DBusConnection *
 _g_daemon_vfs_get_async_bus (void)
 {
@@ -1103,6 +1144,7 @@ g_daemon_vfs_class_init (GDaemonVfsClass *class)
   vfs_class->get_file_for_uri = g_daemon_vfs_get_file_for_uri;
   vfs_class->get_supported_uri_schemes = g_daemon_vfs_get_supported_uri_schemes;
   vfs_class->parse_name = g_daemon_vfs_parse_name;
+  vfs_class->add_extra_info_for_file = g_daemon_vfs_add_extra_info_for_file;
 }
 
 /* Module API */