X-Git-Url: https://git.notmuchmail.org/git?a=blobdiff_plain;f=lib%2Fmessages.c;h=7ddfaf269c74b3a1cd2893bb4d64d04dba520393;hb=e9206b5ed659baa4438e3be1e30c9e806450b59a;hp=a88f974ff5949bd8d54b886c10949e538ff81909;hpb=045f0e455ac94e2393d0d729c9bbdf3459a4860f;p=notmuch

diff --git a/lib/messages.c b/lib/messages.c
index a88f974f..7ddfaf26 100644
--- a/lib/messages.c
+++ b/lib/messages.c
@@ -56,6 +56,15 @@ _notmuch_message_list_add_message (notmuch_message_list_t *list,
     list->tail = &node->next;
 }
 
+bool
+_notmuch_message_list_empty (notmuch_message_list_t *list)
+{
+    if (list == NULL)
+	return TRUE;
+
+    return (list->head == NULL);
+}
+
 notmuch_messages_t *
 _notmuch_messages_create (notmuch_message_list_t *list)
 {
@@ -101,6 +110,18 @@ notmuch_messages_valid (notmuch_messages_t *messages)
     return (messages->iterator != NULL);
 }
 
+bool
+_notmuch_messages_has_next (notmuch_messages_t *messages)
+{
+    if (! notmuch_messages_valid (messages))
+	return false;
+
+    if (! messages->is_of_list_type)
+	INTERNAL_ERROR("_notmuch_messages_has_next not implemented for msets");
+
+    return (messages->iterator->next != NULL);
+}
+
 notmuch_message_t *
 notmuch_messages_get (notmuch_messages_t *messages)
 {