lib: cache user prefixes in database object

[notmuch] / lib / notmuch-private.h

diff --git a/lib/notmuch-private.h b/lib/notmuch-private.h
index 39d11a917b20a7f256f707829438b88ea0cfe379..09f828abfffbaec47aa57611728191ef9975cba4 100644 (file)
--- a/lib/notmuch-private.h
+++ b/lib/notmuch-private.h
@@ -678,6 +678,8 @@ struct _notmuch_indexopts {
 
 #define CONFIG_HEADER_PREFIX "index.header."
 
+#define EMPTY_STRING(s) ((s)[0] == '\0')
+
 NOTMUCH_END_DECLS
 
 #ifdef __cplusplus