lib: add private function to extract the database for a message.

This is needed by logging in functions outside message.cc that take
only a notmuch_message_t object.

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/message.cc b/lib/message.cc
index 956a70a9..b84e5e1c 100644
--- a/lib/message.cc
+++ b/lib/message.cc
@@ -1626,3 +1626,9 @@ notmuch_message_destroy (notmuch_message_t *message)
 {
     talloc_free (message);
 }
+
+notmuch_database_t *
+_notmuch_message_database (notmuch_message_t *message)
+{
+    return message->notmuch;
+}