* programmatically. */
#define NOTMUCH_TERM_MAX 245
+#define NOTMUCH_METADATA_THREAD_ID_PREFIX "thread_id_"
+
+/* For message IDs we have to be even more restrictive. Beyond fitting
+ * into the term limit, we also use message IDs to construct
+ * metadata-key values. And the documentation says that these should
+ * be restricted to about 200 characters. (The actual limit for the
+ * chert backend at least is 252.)
+ */
+#define NOTMUCH_MESSAGE_ID_MAX (200 - sizeof (NOTMUCH_METADATA_THREAD_ID_PREFIX))
+
typedef enum _notmuch_private_status {
/* First, copy all the public status values. */
NOTMUCH_PRIVATE_STATUS_SUCCESS = NOTMUCH_STATUS_SUCCESS,
const char *
_notmuch_database_get_directory_db_path (const char *path);
+unsigned int
+_notmuch_database_generate_doc_id (notmuch_database_t *notmuch);
+
notmuch_private_status_t
_notmuch_database_find_unique_doc_id (notmuch_database_t *notmuch,
const char *prefix_name,