[glib] Stop using g_sequence_get_length() to check if it's empty

[Xavier Claessens <xclaesse src gnome org>]

commit df352203d6eb06355e4de40006236af64181d9d6
Author: Xavier Claessens <xavier claessens collabora com>
Date:   Fri Oct 30 10:02:06 2015 -0400

    Stop using g_sequence_get_length() to check if it's empty
    
    g_sequence_is_empty() is more efficient for that task.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=756988

 gio/gdbusmenumodel.c    |    2 +-
 gio/glocalfilemonitor.c |    6 +++---
 gio/gmenuexporter.c     |    2 +-
 glib/gsequence.c        |    2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/gio/gdbusmenumodel.c b/gio/gdbusmenumodel.c
index 18c68df..aafc9ae 100644
--- a/gio/gdbusmenumodel.c
+++ b/gio/gdbusmenumodel.c
@@ -625,7 +625,7 @@ g_dbus_menu_group_changed (GDBusMenuGroup *group,
   while (g_variant_iter_loop (&iter, "@a{sv}", &item))
     g_sequence_insert_before (point, g_dbus_menu_group_create_item (item));
 
-  if (g_sequence_get_length (items) == 0)
+  if (g_sequence_is_empty (items))
     {
       g_hash_table_remove (group->menus, GINT_TO_POINTER (menu_id));
       items = NULL;
diff --git a/gio/glocalfilemonitor.c b/gio/glocalfilemonitor.c
index 62d269c..dbd62ec 100644
--- a/gio/glocalfilemonitor.c
+++ b/gio/glocalfilemonitor.c
@@ -504,7 +504,7 @@ g_file_monitor_source_dispatch (GSource     *source,
   g_mutex_lock (&fms->lock);
 
   /* Create events for any pending changes that are due to fire */
-  while (g_sequence_get_length (fms->pending_changes))
+  while (!g_sequence_is_empty (fms->pending_changes))
     {
       GSequenceIter *iter = g_sequence_get_begin_iter (fms->pending_changes);
       PendingChange *pending = g_sequence_get (iter);
@@ -572,7 +572,7 @@ g_file_monitor_source_dispose (GFileMonitorSource *fms)
       while ((event = g_queue_pop_head (&fms->event_queue)))
         queued_event_free (event);
 
-      g_assert (g_sequence_get_length (fms->pending_changes) == 0);
+      g_assert (g_sequence_is_empty (fms->pending_changes));
       g_assert (g_hash_table_size (fms->pending_changes_table) == 0);
       g_assert (fms->event_queue.length == 0);
       fms->instance = NULL;
@@ -592,7 +592,7 @@ g_file_monitor_source_finalize (GSource *source)
 
   /* should already have been cleared in dispose of the monitor */
   g_assert (fms->instance == NULL);
-  g_assert (g_sequence_get_length (fms->pending_changes) == 0);
+  g_assert (g_sequence_is_empty (fms->pending_changes));
   g_assert (g_hash_table_size (fms->pending_changes_table) == 0);
   g_assert (fms->event_queue.length == 0);
 
diff --git a/gio/gmenuexporter.c b/gio/gmenuexporter.c
index 89cc309..68a59ae 100644
--- a/gio/gmenuexporter.c
+++ b/gio/gmenuexporter.c
@@ -377,7 +377,7 @@ g_menu_exporter_group_subscribe (GMenuExporterGroup *group,
       guint id = GPOINTER_TO_INT (key);
       GMenuExporterMenu *menu = val;
 
-      if (g_sequence_get_length (menu->item_links))
+      if (!g_sequence_is_empty (menu->item_links))
         {
           g_variant_builder_open (builder, G_VARIANT_TYPE ("(uuaa{sv})"));
           g_variant_builder_add (builder, "u", group->id);
diff --git a/glib/gsequence.c b/glib/gsequence.c
index 3ed1eb8..81f3e42 100644
--- a/glib/gsequence.c
+++ b/glib/gsequence.c
@@ -883,7 +883,7 @@ g_sequence_sort_iter (GSequence                *seq,
   seq->access_prohibited = TRUE;
   tmp->access_prohibited = TRUE;
 
-  while (g_sequence_get_length (tmp) > 0)
+  while (!g_sequence_is_empty (tmp))
     {
       GSequenceNode *node = g_sequence_get_begin_iter (tmp);