From 5bed0413f34c2e514d24bd544c92c54c838ca973 Mon Sep 17 00:00:00 2001 From: Hallvard Furuseth Date: Wed, 21 Dec 2016 21:40:14 +0100 Subject: [PATCH] mdbx: backport - More MDB_node doc. Change-Id: I2a4d2596af8d2c551d891b567e4d3366b2d6ad8c --- mdb.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/mdb.c b/mdb.c index cbee8489..27df5516 100644 --- a/mdb.c +++ b/mdb.c @@ -619,6 +619,11 @@ 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