X-Git-Url: https://git.notmuchmail.org/git?a=blobdiff_plain;f=lib%2Fmessages.c;h=04fa19f8ec16e4c140e506e1f39f084ba47e09dc;hb=46dce33abc82ea6ebd3be2e0887506af4185c739;hp=b5363bb8f6750d18efac91afdb9b5be0d6922670;hpb=07dff496304d6dc2e8033a18691b095ed9cd212f;p=notmuch

diff --git a/lib/messages.c b/lib/messages.c
index b5363bb8..04fa19f8 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)
 {
@@ -68,7 +77,7 @@ _notmuch_messages_create (notmuch_message_list_t *list)
     if (unlikely (messages == NULL))
 	return NULL;
 
-    messages->is_of_list_type = TRUE;
+    messages->is_of_list_type = true;
     messages->iterator = list->head;
 
     return messages;
@@ -93,7 +102,7 @@ notmuch_bool_t
 notmuch_messages_valid (notmuch_messages_t *messages)
 {
     if (messages == NULL)
-	return FALSE;
+	return false;
 
     if (! messages->is_of_list_type)
 	return _notmuch_mset_messages_valid (messages);
@@ -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 implimented for msets");
+
+    return (messages->iterator->next != NULL);
+}
+
 notmuch_message_t *
 notmuch_messages_get (notmuch_messages_t *messages)
 {