lib: Add an iterator over all messages in a thread

Previously, getting the list of all messages in a thread required
recursively traversing the thread's message hierarchy, which was both
difficult and resulted in messages being out of order.  This adds a
public function to retrieve an iterator over all of the messages in a
thread in oldest-first order.

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/thread.cc b/lib/thread.cc
index 45a7d1d0..c126aac8 100644
--- a/lib/thread.cc
+++ b/lib/thread.cc
@@ -508,6 +508,12 @@ notmuch_thread_get_toplevel_messages (notmuch_thread_t *thread)
     return _notmuch_messages_create (thread->toplevel_list);
 }
 
+notmuch_messages_t *
+notmuch_thread_get_messages (notmuch_thread_t *thread)
+{
+    return _notmuch_messages_create (thread->message_list);
+}
+
 const char *
 notmuch_thread_get_thread_id (notmuch_thread_t *thread)
 {