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more for mdb_cursor_count

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return MDB_NOTFOUND if the cursor is empty
This commit is contained in:
Howard Chu 2014-07-24 04:13:55 -07:00
parent 6cb1166635
commit 082bac1492
1 changed files with 3 additions and 0 deletions
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3
libraries/liblmdb/mdb.c
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@ -6962,6 +6962,9 @@ mdb_cursor_count(MDB_cursor *mc, size_t *countp)
if (!(mc->mc_flags & C_INITIALIZED))
return EINVAL;
if (!mc->mc_snum || (mc->mc_flags & C_EOF))
return MDB_NOTFOUND;
leaf = NODEPTR(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top]);
if (!F_ISSET(leaf->mn_flags, F_DUPDATA)) {
*countp = 1;