-
- if (context->overflow_used_source_ids)
- g_hash_table_remove (context->overflow_used_source_ids,
- GUINT_TO_POINTER (source->source_id));
-
-}
-
-static void
-assign_source_id_unlocked (GMainContext *context,
- GSource *source)
-{
- guint id;
-
- /* Are we about to overflow back to 0?
- * See https://bugzilla.gnome.org/show_bug.cgi?id=687098
- */
- if (G_UNLIKELY (context->next_id == G_MAXUINT &&
- context->overflow_used_source_ids == NULL))
- {
- GSourceIter iter;
- GSource *source;
-
- context->overflow_used_source_ids = g_hash_table_new (NULL, NULL);
-
- g_source_iter_init (&iter, context, FALSE);
- while (g_source_iter_next (&iter, &source))
- {
- g_hash_table_add (context->overflow_used_source_ids,
- GUINT_TO_POINTER (source->source_id));
- }
- id = G_MAXUINT;
- g_hash_table_add (context->overflow_used_source_ids, GUINT_TO_POINTER (id));
- }
- else if (context->overflow_used_source_ids == NULL)
- {
- id = context->next_id++;
- }
- else
- {
- /*
- * If we overran G_MAXUINT, we fall back to randomly probing the
- * source ids for the current context. This will be slower the more
- * sources there are, but we're mainly concerned right now about
- * correctness and code size. There's time for a more clever solution
- * later.
- */
- do
- id = g_random_int ();
- while (id == 0 ||
- g_hash_table_contains (context->overflow_used_source_ids,
- GUINT_TO_POINTER (id)));
- g_hash_table_add (context->overflow_used_source_ids, GUINT_TO_POINTER (id));
- }
-
- source->source_id = id;