[gtk/wip/baedert/for-master] recentmanager: Stop using linked lists

[Timm Bäder <baedert src gnome org>]

commit fd0525a4cf51ff815280f72b64e3e32ff9624ad2
Author: Timm Bäder <mail baedert org>
Date:   Fri Aug 30 08:26:25 2019 +0200

    recentmanager: Stop using linked lists
    
    It doesn't really make sense to save the applications and groups in
    recent infos as linked lists. We get them from glib as arrays, so we can
    as well just save them as such.

 gtk/gtkrecentmanager.c | 118 +++++++++++++++++++------------------------------
 1 file changed, 46 insertions(+), 72 deletions(-)
---
diff --git a/gtk/gtkrecentmanager.c b/gtk/gtkrecentmanager.c
index a1d27f701e..c4238d079a 100644
--- a/gtk/gtkrecentmanager.c
+++ b/gtk/gtkrecentmanager.c
@@ -150,10 +150,12 @@ struct _GtkRecentInfo
 
   gchar *mime_type;
 
-  GSList *applications;
+  RecentAppInfo *applications;
+  int n_applications;
   GHashTable *apps_lookup;
 
-  GSList *groups;
+  char **groups;
+  int n_groups;
 
   gboolean is_private;
 
@@ -219,9 +221,6 @@ static void     build_recent_items_list                (GtkRecentManager  *manag
 static void     purge_recent_items_list                (GtkRecentManager  *manager,
                                                         GError           **error);
 
-static RecentAppInfo *recent_app_info_new  (const gchar   *app_name);
-static void           recent_app_info_free (RecentAppInfo *app_info);
-
 static GtkRecentInfo *gtk_recent_info_new  (const gchar   *uri);
 static void           gtk_recent_info_free (GtkRecentInfo *recent_info);
 
@@ -1086,6 +1085,7 @@ build_recent_info (GBookmarkFile *bookmarks,
 {
   gchar **apps, **groups;
   gsize apps_len, groups_len, i;
+  int app_index;
 
   g_assert (bookmarks != NULL);
   g_assert (info != NULL);
@@ -1101,16 +1101,17 @@ build_recent_info (GBookmarkFile *bookmarks,
   info->visited = g_bookmark_file_get_visited (bookmarks, info->uri, NULL);
 
   groups = g_bookmark_file_get_groups (bookmarks, info->uri, &groups_len, NULL);
+  info->groups = g_malloc (sizeof (char *) * groups_len);
+  info->n_groups = groups_len;
   for (i = 0; i < groups_len; i++)
-    {
-      gchar *group_name = g_strdup (groups[i]);
-
-      info->groups = g_slist_append (info->groups, group_name);
-    }
+    info->groups[i] = g_strdup (groups[i]);
 
   g_strfreev (groups);
 
+  app_index = 0;
   apps = g_bookmark_file_get_applications (bookmarks, info->uri, &apps_len, NULL);
+  info->applications = g_malloc (sizeof (RecentAppInfo ) * apps_len);
+  info->n_applications = 0;
   for (i = 0; i < apps_len; i++)
     {
       gchar *app_name, *app_exec;
@@ -1129,13 +1130,16 @@ build_recent_info (GBookmarkFile *bookmarks,
       if (!res)
         continue;
 
-      app_info = recent_app_info_new (app_name);
+      app_info = &info->applications[app_index];
+      app_info->name= g_strdup (app_name);
       app_info->exec = app_exec;
       app_info->count = count;
       app_info->stamp = stamp;
 
-      info->applications = g_slist_prepend (info->applications, app_info);
       g_hash_table_replace (info->apps_lookup, app_info->name, app_info);
+
+      app_index ++;
+      info->n_applications ++;
     }
 
   g_strfreev (apps);
@@ -1496,6 +1500,8 @@ gtk_recent_info_new (const gchar *uri)
 static void
 gtk_recent_info_free (GtkRecentInfo *recent_info)
 {
+  int i;
+
   if (!recent_info)
     return;
 
@@ -1504,12 +1510,22 @@ gtk_recent_info_free (GtkRecentInfo *recent_info)
   g_free (recent_info->description);
   g_free (recent_info->mime_type);
 
-  g_slist_free_full (recent_info->applications, (GDestroyNotify)recent_app_info_free);
+  for (i = 0; i < recent_info->n_applications; i ++)
+    {
+      const RecentAppInfo *app_info = &recent_info->applications[i];
+
+      g_free (app_info->name);
+      g_free (app_info->exec);
+    }
+  g_free (recent_info->applications);
 
   if (recent_info->apps_lookup)
     g_hash_table_destroy (recent_info->apps_lookup);
 
-  g_slist_free_full (recent_info->groups, g_free);
+  for (i = 0; i < recent_info->n_groups; i ++)
+    g_free (recent_info->groups[i]);
+
+  g_free (recent_info->groups);
 
   g_free (recent_info);
 }
@@ -1700,35 +1716,6 @@ gtk_recent_info_get_private_hint (GtkRecentInfo *info)
   return info->is_private;
 }
 
-
-static RecentAppInfo *
-recent_app_info_new (const gchar *app_name)
-{
-  RecentAppInfo *app_info;
-
-  g_assert (app_name != NULL);
-
-  app_info = g_slice_new0 (RecentAppInfo);
-  app_info->name = g_strdup (app_name);
-  app_info->exec = NULL;
-  app_info->count = 1;
-  app_info->stamp = 0;
-
-  return app_info;
-}
-
-static void
-recent_app_info_free (RecentAppInfo *app_info)
-{
-  if (!app_info)
-    return;
-
-  g_free (app_info->name);
-  g_free (app_info->exec);
-
-  g_slice_free (RecentAppInfo, app_info);
-}
-
 /**
  * gtk_recent_info_get_application_info:
  * @info: a #GtkRecentInfo
@@ -1800,7 +1787,6 @@ gchar **
 gtk_recent_info_get_applications (GtkRecentInfo *info,
                                   gsize         *length)
 {
-  GSList *l;
   gchar **retval;
   gsize n_apps, i;
 
@@ -1814,24 +1800,20 @@ gtk_recent_info_get_applications (GtkRecentInfo *info,
       return NULL;
     }
 
-  n_apps = g_slist_length (info->applications);
+  n_apps = info->n_applications;
 
   retval = g_new0 (gchar *, n_apps + 1);
 
-  for (l = info->applications, i = 0;
-       l != NULL;
-       l = l->next)
+  for (i = 0; i < info->n_applications; i ++)
     {
-      RecentAppInfo *ai = (RecentAppInfo *) l->data;
+      const RecentAppInfo *ai = &info->applications[i];
 
-      g_assert (ai != NULL);
-
-      retval[i++] = g_strdup (ai->name);
+      retval[i] = g_strdup (ai->name);
     }
   retval[i] = NULL;
 
   if (length)
-    *length = i;
+    *length = info->n_applications;
 
   return retval;
 }
@@ -1868,15 +1850,15 @@ gtk_recent_info_has_application (GtkRecentInfo *info,
 gchar *
 gtk_recent_info_last_application (GtkRecentInfo *info)
 {
-  GSList *l;
+  int i;
   time_t last_stamp = (time_t) -1;
   gchar *name = NULL;
 
   g_return_val_if_fail (info != NULL, NULL);
 
-  for (l = info->applications; l != NULL; l = l->next)
+  for (i = 0; i < info->n_applications; i ++)
     {
-      RecentAppInfo *ai = (RecentAppInfo *) l->data;
+      const RecentAppInfo *ai = &info->applications[i];
 
       if (ai->stamp > last_stamp)
         {
@@ -2229,13 +2211,12 @@ gchar **
 gtk_recent_info_get_groups (GtkRecentInfo *info,
                             gsize         *length)
 {
-  GSList *l;
   gchar **retval;
   gsize n_groups, i;
 
   g_return_val_if_fail (info != NULL, NULL);
 
-  if (!info->groups)
+  if (!info->groups || info->n_groups == 0)
     {
       if (length)
         *length = 0;
@@ -2243,24 +2224,17 @@ gtk_recent_info_get_groups (GtkRecentInfo *info,
       return NULL;
     }
 
-  n_groups = g_slist_length (info->groups);
+  n_groups = info->n_groups;
 
   retval = g_new0 (gchar *, n_groups + 1);
 
-  for (l = info->groups, i = 0;
-       l != NULL;
-       l = l->next)
-    {
-      gchar *group_name = (gchar *) l->data;
-
-      g_assert (group_name != NULL);
+  for (i = 0; i < info->n_groups; i ++)
+    retval[i] = g_strdup (info->groups[i]);
 
-      retval[i++] = g_strdup (group_name);
-    }
   retval[i] = NULL;
 
   if (length)
-    *length = i;
+    *length = info->n_groups;
 
   return retval;
 }
@@ -2279,7 +2253,7 @@ gboolean
 gtk_recent_info_has_group (GtkRecentInfo *info,
                            const gchar   *group_name)
 {
-  GSList *l;
+  int i;
 
   g_return_val_if_fail (info != NULL, FALSE);
   g_return_val_if_fail (group_name != NULL, FALSE);
@@ -2287,9 +2261,9 @@ gtk_recent_info_has_group (GtkRecentInfo *info,
   if (!info->groups)
     return FALSE;
 
-  for (l = info->groups; l != NULL; l = l->next)
+  for (i = 0; i < info->n_groups; i ++)
     {
-      gchar *g = (gchar *) l->data;
+      const char *g = info->groups[i];
 
       if (strcmp (g, group_name) == 0)
         return TRUE;