Allow fold_range_wait in snapshot mode (#14)
This is just a convenience function in case the calling code happens
to supply an erlfdb_snapshot structure instead of an erlfdb_transaction.
It has no actual effect on the semantics since this is merely waiting
on the previously-created future.
diff --git a/src/erlfdb.erl b/src/erlfdb.erl
index 506b4b0..cbe738f 100644
--- a/src/erlfdb.erl
+++ b/src/erlfdb.erl
@@ -402,7 +402,10 @@
fold_range_wait(?IS_TX = Tx, ?IS_FOLD_FUTURE = FI, Fun, Acc) ->
fold_range_int(Tx, FI, fun(Rows, InnerAcc) ->
lists:foldl(Fun, InnerAcc, Rows)
- end, Acc).
+ end, Acc);
+
+fold_range_wait(?IS_SS = SS, ?IS_FOLD_FUTURE = FI, Fun, Acc) ->
+ fold_range_wait(?GET_TX(SS), FI, Fun, Acc).
set(?IS_DB = Db, Key, Value) ->
