+ return &messages->base;
+}
+
+notmuch_bool_t
+_notmuch_mset_messages_has_more (notmuch_messages_t *messages)
+{
+ notmuch_mset_messages_t *mset_messages;
+
+ mset_messages = (notmuch_mset_messages_t *) messages;
+
+ return (mset_messages->iterator != mset_messages->iterator_end);
+}
+
+notmuch_message_t *
+_notmuch_mset_messages_get (notmuch_messages_t *messages)
+{
+ notmuch_message_t *message;
+ Xapian::docid doc_id;
+ notmuch_private_status_t status;
+ notmuch_mset_messages_t *mset_messages;
+
+ mset_messages = (notmuch_mset_messages_t *) messages;
+
+ if (! _notmuch_mset_messages_has_more (&mset_messages->base))
+ return NULL;
+
+ doc_id = *mset_messages->iterator;
+
+ message = _notmuch_message_create (mset_messages,
+ mset_messages->notmuch, doc_id,
+ &status);
+
+ if (message == NULL &&
+ status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND)
+ {
+ INTERNAL_ERROR ("a messages iterator contains a non-existent document ID.\n");
+ }
+
+ return message;
+}
+
+void
+_notmuch_mset_messages_advance (notmuch_messages_t *messages)
+{
+ notmuch_mset_messages_t *mset_messages;
+
+ mset_messages = (notmuch_mset_messages_t *) messages;
+
+ mset_messages->iterator++;