lib: fix clang build warnings

[notmuch] / lib / notmuch.h

diff --git a/lib/notmuch.h b/lib/notmuch.h
index fe2340bbcbf62470307138aee548427c65a47d3b..220839b732a94ee95a37e3958d8acffb9d59162e 100644 (file)
--- a/lib/notmuch.h
+++ b/lib/notmuch.h
@@ -55,7 +55,7 @@ NOTMUCH_BEGIN_DECLS
  * The library version number.  This must agree with the soname
  * version in Makefile.local.
  */
-#define LIBNOTMUCH_MAJOR_VERSION       3
+#define LIBNOTMUCH_MAJOR_VERSION       4
 #define LIBNOTMUCH_MINOR_VERSION       1
 #define LIBNOTMUCH_MICRO_VERSION       0
 
@@ -281,7 +281,7 @@ notmuch_database_open (const char *path,
                       notmuch_database_t **database);
 
 /**
- * Close the given notmuch database.
+ * Commit changes and close the given notmuch database.
  *
  * After notmuch_database_close has been called, calls to other
  * functions on objects derived from this database may either behave
@@ -292,6 +292,13 @@ notmuch_database_open (const char *path,
  * notmuch_database_close can be called multiple times.  Later calls
  * have no effect.
  *
+ * For writable databases, notmuch_database_close commits all changes
+ * to disk before closing the database.  If the caller is currently in
+ * an atomic section (there was a notmuch_database_begin_atomic
+ * without a matching notmuch_database_end_atomic), this will discard
+ * changes made in that atomic section (but still commit changes made
+ * prior to entering the atomic section).
+ *
  * Return value:
  *
  * NOTMUCH_STATUS_SUCCESS: Successfully closed the database.
@@ -1214,7 +1221,14 @@ notmuch_message_get_filenames (notmuch_message_t *message);
  */
 typedef enum _notmuch_message_flag {
     NOTMUCH_MESSAGE_FLAG_MATCH,
-    NOTMUCH_MESSAGE_FLAG_EXCLUDED
+    NOTMUCH_MESSAGE_FLAG_EXCLUDED,
+
+    /* This message is a "ghost message", meaning it has no filenames
+     * or content, but we know it exists because it was referenced by
+     * some other message.  A ghost message has only a message ID and
+     * thread ID.
+     */
+    NOTMUCH_MESSAGE_FLAG_GHOST,
 } notmuch_message_flag_t;
 
 /**