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-rw-r--r--lib/mnesia/src/mnesia_schema.erl108
1 files changed, 66 insertions, 42 deletions
diff --git a/lib/mnesia/src/mnesia_schema.erl b/lib/mnesia/src/mnesia_schema.erl
index 05be474aea..179e15197e 100644
--- a/lib/mnesia/src/mnesia_schema.erl
+++ b/lib/mnesia/src/mnesia_schema.erl
@@ -39,9 +39,10 @@
change_table_load_order/2,
change_table_majority/2,
change_table_frag/2,
- clear_table/1,
+%% clear_table/1, %% removed since it is not a schema op anymore
create_table/1,
cs2list/1,
+ vsn_cs2list/1,
del_snmp/1,
del_table_copy/2,
del_table_index/2,
@@ -65,6 +66,7 @@
merge_schema/0,
merge_schema/1,
move_table/3,
+ normalize_cs/2,
opt_create_dir/2,
prepare_commit/3,
purge_dir/2,
@@ -626,6 +628,17 @@ do_insert_schema_ops(Store, [Head | Tail]) ->
do_insert_schema_ops(_Store, []) ->
ok.
+api_list2cs(List) when is_list(List) ->
+ Name = pick(unknown, name, List, must),
+ Keys = check_keys(Name, List, record_info(fields, cstruct)),
+ check_duplicates(Name, Keys),
+ list2cs(List);
+api_list2cs(Other) ->
+ mnesia:abort({badarg, Other}).
+
+vsn_cs2list(Cs) ->
+ cs2list(need_old_cstructs(), Cs).
+
cs2list(Cs) when is_record(Cs, cstruct) ->
Tags = record_info(fields, cstruct),
rec2list(Tags, Tags, 2, Cs);
@@ -648,7 +661,7 @@ cs2list(Cs) when element(1, Cs) == cstruct, tuple_size(Cs) == 17 ->
cs2list(false, Cs) ->
cs2list(Cs);
-cs2list(ver4_4_18, Cs) ->
+cs2list(ver4_4_18, Cs) -> %% Or earlier
Orig = record_info(fields, cstruct),
Tags = [name,type,ram_copies,disc_copies,disc_only_copies,
load_order,access_mode,index,snmp,local_content,
@@ -671,13 +684,19 @@ rec2list([], _, _Pos, _Rec) ->
rec2list(Tags, [_|Orig], Pos, Rec) ->
rec2list(Tags, Orig, Pos+1, Rec).
-api_list2cs(List) when is_list(List) ->
- Name = pick(unknown, name, List, must),
- Keys = check_keys(Name, List, record_info(fields, cstruct)),
- check_duplicates(Name, Keys),
- list2cs(List);
-api_list2cs(Other) ->
- mnesia:abort({badarg, Other}).
+normalize_cs(Cstructs, Node) ->
+ %% backward-compatibility hack; normalize before returning
+ case need_old_cstructs([Node]) of
+ false ->
+ Cstructs;
+ Version ->
+ %% some other format
+ [convert_cs(Version, Cs) || Cs <- Cstructs]
+ end.
+
+convert_cs(Version, Cs) ->
+ Fields = [Value || {_, Value} <- cs2list(Version, Cs)],
+ list_to_tuple([cstruct|Fields]).
list2cs(List) when is_list(List) ->
Name = pick(unknown, name, List, must),
@@ -1048,7 +1067,7 @@ unsafe_make_create_table(Cs) ->
Nodes = mnesia_lib:intersect(mnesia_lib:cs_to_nodes(Cs), RunningNodes),
Store = Ts#tidstore.store,
mnesia_locker:wlock_no_exist(Tid, Store, Tab, Nodes),
- [{op, create_table, cs2list(Cs)}].
+ [{op, create_table, vsn_cs2list(Cs)}].
check_if_exists(Tab) ->
TidTs = get_tid_ts_and_lock(schema, write),
@@ -1133,7 +1152,7 @@ make_delete_table2(Tab) ->
Cs = val({Tab, cstruct}),
ensure_active(Cs),
ensure_writable(Tab),
- {op, delete_table, cs2list(Cs)}.
+ {op, delete_table, vsn_cs2list(Cs)}.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Change fragmentation of a table
@@ -1152,10 +1171,6 @@ do_change_table_frag(Tab, _Change) ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Clear a table
-%% No need for a schema transaction
-clear_table(Tab) ->
- schema_transaction(fun() -> do_clear_table(Tab) end).
-
do_clear_table(schema) ->
mnesia:abort({bad_type, schema});
do_clear_table(Tab) ->
@@ -1166,7 +1181,7 @@ do_clear_table(Tab) ->
make_clear_table(Tab) ->
Cs = val({Tab, cstruct}),
ensure_writable(Tab),
- [{op, clear_table, cs2list(Cs)}].
+ [{op, clear_table, vsn_cs2list(Cs)}].
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -1206,7 +1221,7 @@ make_add_table_copy(Tab, Node, Storage) ->
IsRunning == false ->
mnesia:abort({not_active, schema, Node})
end,
- [{op, add_table_copy, Storage, Node, cs2list(Cs2)}].
+ [{op, add_table_copy, Storage, Node, vsn_cs2list(Cs2)}].
del_table_copy(Tab, Node) ->
schema_transaction(fun() -> do_del_table_copy(Tab, Node) end).
@@ -1235,11 +1250,11 @@ make_del_table_copy(Tab, Node) ->
ensure_not_active(Tab, Node),
verify_cstruct(Cs2),
Ops = remove_node_from_tabs(val({schema, tables}), Node),
- [{op, del_table_copy, ram_copies, Node, cs2list(Cs2)} | Ops];
+ [{op, del_table_copy, ram_copies, Node, vsn_cs2list(Cs2)} | Ops];
_ ->
ensure_active(Cs),
verify_cstruct(Cs2),
- [{op, del_table_copy, Storage, Node, cs2list(Cs2)}]
+ [{op, del_table_copy, Storage, Node, vsn_cs2list(Cs2)}]
end.
remove_node_from_tabs([], _Node) ->
@@ -1253,7 +1268,7 @@ remove_node_from_tabs([Tab|Rest], Node) ->
unknown ->
case IsFragModified of
true ->
- [{op, change_table_frag, {del_node, Node}, cs2list(Cs)} |
+ [{op, change_table_frag, {del_node, Node}, vsn_cs2list(Cs)} |
remove_node_from_tabs(Rest, Node)];
false ->
remove_node_from_tabs(Rest, Node)
@@ -1262,11 +1277,11 @@ remove_node_from_tabs([Tab|Rest], Node) ->
Cs2 = new_cs(Cs, Node, Storage, del),
case mnesia_lib:cs_to_nodes(Cs2) of
[] ->
- [{op, delete_table, cs2list(Cs)} |
+ [{op, delete_table, vsn_cs2list(Cs)} |
remove_node_from_tabs(Rest, Node)];
_Ns ->
verify_cstruct(Cs2),
- [{op, del_table_copy, ram_copies, Node, cs2list(Cs2)}|
+ [{op, del_table_copy, ram_copies, Node, vsn_cs2list(Cs2)}|
remove_node_from_tabs(Rest, Node)]
end
end.
@@ -1318,9 +1333,9 @@ make_move_table(Tab, FromNode, ToNode) ->
Cs2 = new_cs(Cs, ToNode, Storage, add),
Cs3 = new_cs(Cs2, FromNode, Storage, del),
verify_cstruct(Cs3),
- [{op, add_table_copy, Storage, ToNode, cs2list(Cs2)},
+ [{op, add_table_copy, Storage, ToNode, vsn_cs2list(Cs2)},
{op, sync_trans},
- {op, del_table_copy, Storage, FromNode, cs2list(Cs3)}].
+ {op, del_table_copy, Storage, FromNode, vsn_cs2list(Cs3)}].
%% end of functions to add and delete nodes to tables
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -1357,7 +1372,7 @@ make_change_table_copy_type(Tab, Node, ToS) ->
Cs3 = new_cs(Cs2, Node, ToS, add),
verify_cstruct(Cs3),
- [{op, change_table_copy_type, Node, FromS, ToS, cs2list(Cs3)}].
+ [{op, change_table_copy_type, Node, FromS, ToS, vsn_cs2list(Cs3)}].
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% change index functions ....
@@ -1383,7 +1398,7 @@ make_add_table_index(Tab, Pos) ->
Ix2 = lists:sort([Pos | Ix]),
Cs2 = Cs#cstruct{index = Ix2},
verify_cstruct(Cs2),
- [{op, add_index, Pos, cs2list(Cs2)}].
+ [{op, add_index, Pos, vsn_cs2list(Cs2)}].
del_table_index(Tab, Pos) ->
schema_transaction(fun() -> do_del_table_index(Tab, Pos) end).
@@ -1404,7 +1419,7 @@ make_del_table_index(Tab, Pos) ->
verify(true, lists:member(Pos, Ix), {no_exists, Tab, Pos}),
Cs2 = Cs#cstruct{index = lists:delete(Pos, Ix)},
verify_cstruct(Cs2),
- [{op, del_index, Pos, cs2list(Cs2)}].
+ [{op, del_index, Pos, vsn_cs2list(Cs2)}].
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -1427,7 +1442,7 @@ make_add_snmp(Tab, Ustruct) ->
verify(true, mnesia_snmp_hook:check_ustruct(Ustruct), Error),
Cs2 = Cs#cstruct{snmp = Ustruct},
verify_cstruct(Cs2),
- [{op, add_snmp, Ustruct, cs2list(Cs2)}].
+ [{op, add_snmp, Ustruct, vsn_cs2list(Cs2)}].
del_snmp(Tab) ->
schema_transaction(fun() -> do_del_snmp(Tab) end).
@@ -1445,7 +1460,7 @@ make_del_snmp(Tab) ->
ensure_active(Cs),
Cs2 = Cs#cstruct{snmp = []},
verify_cstruct(Cs2),
- [{op, del_snmp, cs2list(Cs2)}].
+ [{op, del_snmp, vsn_cs2list(Cs2)}].
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
@@ -1477,26 +1492,26 @@ make_transform(Tab, Fun, NewAttrs, NewRecName) ->
[] ->
Cs2 = Cs#cstruct{attributes = NewAttrs, record_name = NewRecName},
verify_cstruct(Cs2),
- [{op, transform, Fun, cs2list(Cs2)}];
+ [{op, transform, Fun, vsn_cs2list(Cs2)}];
PosList ->
DelIdx = fun(Pos, Ncs) ->
Ix = Ncs#cstruct.index,
Ncs1 = Ncs#cstruct{index = lists:delete(Pos, Ix)},
- Op = {op, del_index, Pos, cs2list(Ncs1)},
+ Op = {op, del_index, Pos, vsn_cs2list(Ncs1)},
{Op, Ncs1}
end,
AddIdx = fun(Pos, Ncs) ->
Ix = Ncs#cstruct.index,
Ix2 = lists:sort([Pos | Ix]),
Ncs1 = Ncs#cstruct{index = Ix2},
- Op = {op, add_index, Pos, cs2list(Ncs1)},
+ Op = {op, add_index, Pos, vsn_cs2list(Ncs1)},
{Op, Ncs1}
end,
{DelOps, Cs1} = lists:mapfoldl(DelIdx, Cs, PosList),
Cs2 = Cs1#cstruct{attributes = NewAttrs, record_name = NewRecName},
{AddOps, Cs3} = lists:mapfoldl(AddIdx, Cs2, PosList),
verify_cstruct(Cs3),
- lists:flatten([DelOps, {op, transform, Fun, cs2list(Cs2)}, AddOps])
+ lists:flatten([DelOps, {op, transform, Fun, vsn_cs2list(Cs2)}, AddOps])
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -1520,7 +1535,7 @@ make_change_table_access_mode(Tab, Mode) ->
verify(false, OldMode == Mode, {already_exists, Tab, Mode}),
Cs2 = Cs#cstruct{access_mode = Mode},
verify_cstruct(Cs2),
- [{op, change_table_access_mode, cs2list(Cs2), OldMode, Mode}].
+ [{op, change_table_access_mode, vsn_cs2list(Cs2), OldMode, Mode}].
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -1541,7 +1556,7 @@ make_change_table_load_order(Tab, LoadOrder) ->
OldLoadOrder = Cs#cstruct.load_order,
Cs2 = Cs#cstruct{load_order = LoadOrder},
verify_cstruct(Cs2),
- [{op, change_table_load_order, cs2list(Cs2), OldLoadOrder, LoadOrder}].
+ [{op, change_table_load_order, vsn_cs2list(Cs2), OldLoadOrder, LoadOrder}].
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -1571,14 +1586,14 @@ make_change_table_majority(Tab, Majority) ->
ensure_active(CsT),
CsT2 = CsT#cstruct{majority = Majority},
verify_cstruct(CsT2),
- {op, change_table_majority, cs2list(CsT2),
+ {op, change_table_majority, vsn_cs2list(CsT2),
OldMajority, Majority}
end, FragNames);
false -> [];
{_, _} -> mnesia:abort({bad_type, Tab})
end,
verify_cstruct(Cs2),
- [{op, change_table_majority, cs2list(Cs2), OldMajority, Majority} | FragOps].
+ [{op, change_table_majority, vsn_cs2list(Cs2), OldMajority, Majority} | FragOps].
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -1619,7 +1634,7 @@ make_write_table_properties(Tab, [Prop | Props], Cs) ->
MergedProps = lists:merge(DelProps, [Prop]),
Cs2 = Cs#cstruct{user_properties = MergedProps},
verify_cstruct(Cs2),
- [{op, write_property, cs2list(Cs2), Prop} |
+ [{op, write_property, vsn_cs2list(Cs2), Prop} |
make_write_table_properties(Tab, Props, Cs2)];
make_write_table_properties(_Tab, [], _Cs) ->
[].
@@ -1740,7 +1755,7 @@ make_delete_table_properties(Tab, [PropKey | PropKeys], Cs) ->
Props = lists:keydelete(PropKey, 1, OldProps),
Cs2 = Cs#cstruct{user_properties = Props},
verify_cstruct(Cs2),
- [{op, delete_property, cs2list(Cs2), PropKey} |
+ [{op, delete_property, vsn_cs2list(Cs2), PropKey} |
make_delete_table_properties(Tab, PropKeys, Cs2)];
make_delete_table_properties(_Tab, [], _Cs) ->
[].
@@ -2166,12 +2181,17 @@ receive_sync(Nodes, Pids) ->
{abort, Else}
end.
-lock_del_table(Tab, Node, Cs, Father) ->
+lock_del_table(Tab, NewNode, Cs0, Father) ->
Ns = val({schema, active_replicas}),
process_flag(trap_exit,true),
Lock = fun() ->
mnesia:write_lock_table(Tab),
- {Res, []} = rpc:multicall(Ns, ?MODULE, set_where_to_read, [Tab, Node, Cs]),
+ %% Sigh using cs record
+ Set = fun(Node) ->
+ [Cs] = normalize_cs([Cs0], Node),
+ rpc:call(Node, ?MODULE, set_where_to_read, [Tab, NewNode, Cs])
+ end,
+ Res = [Set(Node) || Node <- Ns],
Filter = fun(ok) ->
false;
({badrpc, {'EXIT', {undef, _}}}) ->
@@ -2353,11 +2373,12 @@ undo_prepare_op(Tid, {op, add_table_copy, Storage, Node, TabDef}) ->
undo_prepare_op(_Tid, {op, del_table_copy, _, Node, TabDef})
when Node == node() ->
+ WriteLocker = get(mnesia_lock),
+ WriteLocker =/= undefined andalso (WriteLocker ! die),
Cs = list2cs(TabDef),
Tab = Cs#cstruct.name,
mnesia_lib:set({Tab, where_to_read}, Node);
-
undo_prepare_op(_Tid, {op, change_table_copy_type, N, FromS, ToS, TabDef})
when N == node() ->
Cs = list2cs(TabDef),
@@ -2829,6 +2850,9 @@ fetch_cstructs(Node) ->
rpc:call(Node, mnesia_controller, get_remote_cstructs, [])
end.
+need_old_cstructs() ->
+ need_old_cstructs(val({schema, where_to_write})).
+
need_old_cstructs(Nodes) ->
Filter = fun(Node) -> not mnesia_monitor:needs_protocol_conversion(Node) end,
case lists:dropwhile(Filter, Nodes) of
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 10:50:28 +0000