From 4bc270a2cb5d5a4ef1f01c70faa2bdfe5019ef16 Mon Sep 17 00:00:00 2001 From: Hallvard Furuseth Date: Wed, 21 Dec 2016 21:40:14 +0100 Subject: More MDB_node doc --- libraries/liblmdb/mdb.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c index 5b799e1..5ca0e0a 100644 --- a/libraries/liblmdb/mdb.c +++ b/libraries/liblmdb/mdb.c @@ -978,6 +978,11 @@ typedef struct MDB_page { * pgno on branch nodes. On 64 bit platforms, #mn_flags is also used * for pgno. (Branch nodes have no flags). Lo and hi are in host byte * order in case some accesses can be optimized to 32-bit word access. + * + * Leaf node flags describe node contents. #F_BIGDATA says the node's + * data part is the page number of an overflow page with actual data. + * #F_DUPDATA and #F_SUBDATA can be combined giving duplicate data in + * a sub-page/sub-database, and named databases (just #F_SUBDATA). */ typedef struct MDB_node { /** part of data size or pgno -- cgit v1.2.3