diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/couchdb/couch_btree.erl | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/src/couchdb/couch_btree.erl b/src/couchdb/couch_btree.erl index f8c126f3..91bc8f1b 100644 --- a/src/couchdb/couch_btree.erl +++ b/src/couchdb/couch_btree.erl @@ -105,9 +105,17 @@ full_reduce(#btree{root={_P, Red}}) -> % wraps a 2 arity function with the proper 3 arity function convert_fun_arity(Fun) when is_function(Fun, 2) -> - fun(KV, _Reds, AccIn) -> Fun(KV, AccIn) end; + fun + (visit, KV, _Reds, AccIn) -> Fun(KV, AccIn); + (traverse, _K, _Red, AccIn) -> {ok, AccIn} + end; convert_fun_arity(Fun) when is_function(Fun, 3) -> - Fun. % Already arity 3 + fun + (visit, KV, Reds, AccIn) -> Fun(KV, Reds, AccIn); + (traverse, _K, _Red, AccIn) -> {ok, AccIn} + end; +convert_fun_arity(Fun) when is_function(Fun, 4) -> + Fun. % Already arity 4 make_key_in_end_range_function(#btree{less=Less}, fwd, Options) -> case couch_util:get_value(end_key_gt, Options) of @@ -604,12 +612,17 @@ stream_node(Bt, Reds, {Pointer, _Reds}, InRange, Dir, Fun, Acc) -> stream_kp_node(_Bt, _Reds, [], _InRange, _Dir, _Fun, Acc) -> {ok, Acc}; -stream_kp_node(Bt, Reds, [{_Key, {Pointer, Red}} | Rest], InRange, Dir, Fun, Acc) -> - case stream_node(Bt, Reds, {Pointer, Red}, InRange, Dir, Fun, Acc) of +stream_kp_node(Bt, Reds, [{Key, {Pointer, Red}} | Rest], InRange, Dir, Fun, Acc) -> + case Fun(traverse, Key, Red, Acc) of {ok, Acc2} -> - stream_kp_node(Bt, [Red | Reds], Rest, InRange, Dir, Fun, Acc2); - {stop, LastReds, Acc2} -> - {stop, LastReds, Acc2} + case stream_node(Bt, Reds, {Pointer, Red}, InRange, Dir, Fun, Acc2) of + {ok, Acc3} -> + stream_kp_node(Bt, [Red | Reds], Rest, InRange, Dir, Fun, Acc3); + {stop, LastReds, Acc3} -> + {stop, LastReds, Acc3} + end; + {skip, Acc2} -> + stream_kp_node(Bt, [Red | Reds], Rest, InRange, Dir, Fun, Acc2) end. drop_nodes(_Bt, Reds, _StartKey, []) -> @@ -670,7 +683,7 @@ stream_kv_node2(Bt, Reds, PrevKVs, [{K,V} | RestKVs], InRange, Dir, Fun, Acc) -> {stop, {PrevKVs, Reds}, Acc}; true -> AssembledKV = assemble(Bt, K, V), - case Fun(AssembledKV, {PrevKVs, Reds}, Acc) of + case Fun(visit, AssembledKV, {PrevKVs, Reds}, Acc) of {ok, Acc2} -> stream_kv_node2(Bt, Reds, [AssembledKV | PrevKVs], RestKVs, InRange, Dir, Fun, Acc2); {stop, Acc2} -> |