diff options
Diffstat (limited to 'lib/mnesia/src/mnesia.erl')
| -rw-r--r-- | lib/mnesia/src/mnesia.erl | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/lib/mnesia/src/mnesia.erl b/lib/mnesia/src/mnesia.erl index e298904e2a..223dba3f90 100644 --- a/lib/mnesia/src/mnesia.erl +++ b/lib/mnesia/src/mnesia.erl @@ -168,6 +168,9 @@ -type snmp_struct() :: [{atom(), snmp_type() | tuple_of(snmp_type())}]. -type snmp_type() :: 'fix_string' | 'string' | 'integer'. -type tuple_of(_T) :: tuple(). +-type config_key() :: extra_db_nodes | dc_dump_limit. +-type config_value() :: [node()] | number(). +-type config_result() :: {ok, config_value()} | {error, term()}. -define(DEFAULT_ACCESS, ?MODULE). @@ -278,7 +281,8 @@ stop() -> Other -> Other end. --spec change_config(Config::atom(), Value::_) -> ok | {error, term()}. +-spec change_config(Config::config_key(), Value::config_value()) -> + config_result(). change_config(extra_db_nodes, Ns) when is_list(Ns) -> mnesia_controller:connect_nodes(Ns); change_config(dc_dump_limit, N) when is_number(N), N > 0 -> @@ -779,12 +783,16 @@ do_delete_object(Tid, Ts, Tab, Val, LockKind) -> ?ets_insert(Store, {Oid, Val, delete_object}); _ -> case ?ets_match_object(Store, {Oid, '_', write}) of - [] -> - ?ets_match_delete(Store, {Oid, Val, '_'}), - ?ets_insert(Store, {Oid, Val, delete_object}); - _ -> - ?ets_delete(Store, Oid), - ?ets_insert(Store, {Oid, Oid, delete}) + [] -> + ?ets_match_delete(Store, {Oid, Val, '_'}), + ?ets_insert(Store, {Oid, Val, delete_object}); + Ops -> + case lists:member({Oid, Val, write}, Ops) of + true -> + ?ets_delete(Store, Oid), + ?ets_insert(Store, {Oid, Oid, delete}); + false -> ok + end end end, ok; |