From 62aabaa4aa8d3abcc345a85ff004baaa663bab57 Mon Sep 17 00:00:00 2001 From: Hallvard Furuseth Date: Sat, 11 Jul 2015 21:09:36 +0200 Subject: [PATCH] Simpler mdb_node_add() --- libraries/liblmdb/mdb.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c index 9ccac2c..a0b7766 100644 --- a/libraries/liblmdb/mdb.c +++ b/libraries/liblmdb/mdb.c @@ -7016,6 +7016,7 @@ mdb_node_add(MDB_cursor *mc, indx_t indx, MDB_node *node; MDB_page *mp = mc->mc_pg[mc->mc_top]; MDB_page *ofp = NULL; /* overflow page */ + void *ndata; DKBUF; mdb_cassert(mc, mp->mp_upper >= mp->mp_lower); @@ -7046,7 +7047,7 @@ mdb_node_add(MDB_cursor *mc, indx_t indx, if (key != NULL) node_size += key->mv_size; if (IS_LEAF(mp)) { - mdb_cassert(mc, data); + mdb_cassert(mc, key && data); if (F_ISSET(flags, F_BIGDATA)) { /* Data already on overflow page. */ node_size += sizeof(pgno_t); @@ -7097,23 +7098,21 @@ update: memcpy(NODEKEY(node), key->mv_data, key->mv_size); if (IS_LEAF(mp)) { - mdb_cassert(mc, key); + ndata = NODEDATA(node); if (ofp == NULL) { if (F_ISSET(flags, F_BIGDATA)) - memcpy(node->mn_data + key->mv_size, data->mv_data, - sizeof(pgno_t)); + memcpy(ndata, data->mv_data, sizeof(pgno_t)); else if (F_ISSET(flags, MDB_RESERVE)) - data->mv_data = node->mn_data + key->mv_size; + data->mv_data = ndata; else - memcpy(node->mn_data + key->mv_size, data->mv_data, - data->mv_size); + memcpy(ndata, data->mv_data, data->mv_size); } else { - memcpy(node->mn_data + key->mv_size, &ofp->mp_pgno, - sizeof(pgno_t)); + memcpy(ndata, &ofp->mp_pgno, sizeof(pgno_t)); + ndata = METADATA(ofp); if (F_ISSET(flags, MDB_RESERVE)) - data->mv_data = METADATA(ofp); + data->mv_data = ndata; else - memcpy(METADATA(ofp), data->mv_data, data->mv_size); + memcpy(ndata, data->mv_data, data->mv_size); } }