X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=lib%2Fnotmuch.h;h=247f6ad71ebf1223b32f1c2b5e226261a309ffc1;hp=216b1c75354bed58d08228248adfc87ecd7b9445;hb=e49398dcada520c03ccd95d6b26900f5aa2d857e;hpb=4a6371f1d80aec5947b41d7c4e1fdb60cca3c55d

diff --git a/lib/notmuch.h b/lib/notmuch.h
index 216b1c75..247f6ad7 100644
--- a/lib/notmuch.h
+++ b/lib/notmuch.h
@@ -1351,7 +1351,7 @@ notmuch_messages_collect_tags (notmuch_messages_t *messages);
  * @since libnotmuch 5.2 (notmuch 0.27)
  */
 notmuch_database_t *
-notmuch_message_get_database (notmuch_message_t *message);
+notmuch_message_get_database (const notmuch_message_t *message);
 
 /**
  * Get the message ID of 'message'.
@@ -1890,6 +1890,22 @@ typedef struct _notmuch_string_map_iterator notmuch_message_properties_t;
 notmuch_message_properties_t *
 notmuch_message_get_properties (notmuch_message_t *message, const char *key, notmuch_bool_t exact);
 
+/**
+ * Return the number of properties named "key" belonging to the specific message.
+ *
+ * @param[in] message  The message to examine
+ * @param[in] key      key to count
+ * @param[out] count   The number of matching properties associated with this message.
+ *
+ * @returns
+ *
+ * NOTMUCH_STATUS_SUCCESS: successful count, possibly some other error.
+ *
+ * @since libnotmuch 5.2 (notmuch 0.27)
+ */
+notmuch_status_t
+notmuch_message_count_properties (notmuch_message_t *message, const char *key, unsigned int *count);
+
 /**
  * Is the given *properties* iterator pointing at a valid (key,value)
  * pair.