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-rw-r--r--lib/mnesia/src/mnesia_monitor.erl36
-rw-r--r--lib/mnesia/src/mnesia_schema.erl55
2 files changed, 78 insertions, 13 deletions
diff --git a/lib/mnesia/src/mnesia_monitor.erl b/lib/mnesia/src/mnesia_monitor.erl
index 081d746257..66a5719276 100644
--- a/lib/mnesia/src/mnesia_monitor.erl
+++ b/lib/mnesia/src/mnesia_monitor.erl
@@ -32,6 +32,7 @@
init/0,
mktab/2,
unsafe_mktab/2,
+ unsafe_create_external/4,
mnesia_down/2,
needs_protocol_conversion/1,
negotiate_protocol/1,
@@ -82,9 +83,9 @@
going_down = [], tm_started = false, early_connects = [],
connecting, mq = [], remote_node_status = []}).
--define(current_protocol_version, {8,2}).
+-define(current_protocol_version, {8,3}).
--define(previous_protocol_version, {8,1}).
+-define(previous_protocol_version, {8,2}).
start() ->
gen_server:start_link({local, ?MODULE}, ?MODULE,
@@ -129,6 +130,8 @@ close_log(Name) ->
unsafe_close_log(Name) ->
unsafe_call({unsafe_close_log, Name}).
+unsafe_create_external(Tab, Alias, Mod, Cs) ->
+ unsafe_call({unsafe_create_external, Tab, Alias, Mod, Cs}).
disconnect(Node) ->
cast({disconnect, Node}).
@@ -193,7 +196,7 @@ protocol_version() ->
%% A sorted list of acceptable protocols the
%% preferred protocols are first in the list
acceptable_protocol_versions() ->
- [protocol_version(), ?previous_protocol_version].
+ [protocol_version(), ?previous_protocol_version, {8,1}].
needs_protocol_conversion(Node) ->
case {?catch_val({protocol, Node}), protocol_version()} of
@@ -405,6 +408,14 @@ handle_call({unsafe_close_log, Name}, _From, State) ->
_ = disk_log:close(Name),
{reply, ok, State};
+handle_call({unsafe_create_external, Tab, Alias, Mod, Cs}, _From, State) ->
+ case catch Mod:create_table(Alias, Tab, mnesia_schema:cs2list(Cs)) of
+ {'EXIT', ExitReason} ->
+ {reply, {error, ExitReason}, State};
+ Reply ->
+ {reply, Reply, State}
+ end;
+
handle_call({negotiate_protocol, Mon, _Version, _Protocols}, _From, State)
when State#state.tm_started == false ->
State2 = State#state{early_connects = [node(Mon) | State#state.early_connects]},
@@ -658,6 +669,7 @@ get_env(E) ->
env() ->
[
access_module,
+ allow_index_on_key,
auto_repair,
backup_module,
debug,
@@ -671,19 +683,23 @@ env() ->
extra_db_nodes,
ignore_fallback_at_startup,
fallback_error_function,
+ fold_chunk_size,
max_wait_for_decision,
schema_location,
core_dir,
pid_sort_order,
no_table_loaders,
dc_dump_limit,
- send_compressed
+ send_compressed,
+ schema
].
default_env(access_module) ->
mnesia;
default_env(auto_repair) ->
true;
+default_env(allow_index_on_key) ->
+ false;
default_env(backup_module) ->
mnesia_backup;
default_env(debug) ->
@@ -709,6 +725,8 @@ default_env(ignore_fallback_at_startup) ->
false;
default_env(fallback_error_function) ->
{mnesia, lkill};
+default_env(fold_chunk_size) ->
+ 100;
default_env(max_wait_for_decision) ->
infinity;
default_env(schema_location) ->
@@ -722,7 +740,9 @@ default_env(no_table_loaders) ->
default_env(dc_dump_limit) ->
4;
default_env(send_compressed) ->
- 0.
+ 0;
+default_env(schema) ->
+ [].
check_type(Env, Val) ->
try do_check_type(Env, Val)
@@ -730,6 +750,7 @@ check_type(Env, Val) ->
end.
do_check_type(access_module, A) when is_atom(A) -> A;
+do_check_type(allow_index_on_key, B) -> bool(B);
do_check_type(auto_repair, B) -> bool(B);
do_check_type(backup_module, B) when is_atom(B) -> B;
do_check_type(debug, debug) -> debug;
@@ -753,6 +774,8 @@ do_check_type(extra_db_nodes, L) when is_list(L) ->
(A) when is_atom(A) -> true
end,
lists:filter(Fun, L);
+do_check_type(fold_chunk_size, I) when is_integer(I), I > 0;
+ I =:= infinity -> I;
do_check_type(max_wait_for_decision, infinity) -> infinity;
do_check_type(max_wait_for_decision, I) when is_integer(I), I > 0 -> I;
do_check_type(schema_location, M) -> media(M);
@@ -766,7 +789,8 @@ do_check_type(pid_sort_order, "standard") -> standard;
do_check_type(pid_sort_order, _) -> false;
do_check_type(no_table_loaders, N) when is_integer(N), N > 0 -> N;
do_check_type(dc_dump_limit,N) when is_number(N), N > 0 -> N;
-do_check_type(send_compressed, L) when is_integer(L), L >= 0, L =< 9 -> L.
+do_check_type(send_compressed, L) when is_integer(L), L >= 0, L =< 9 -> L;
+do_check_type(schema, L) when is_list(L) -> L.
bool(true) -> true;
bool(false) -> false.
diff --git a/lib/mnesia/src/mnesia_schema.erl b/lib/mnesia/src/mnesia_schema.erl
index 782493fb4f..76a9dbf26c 100644
--- a/lib/mnesia/src/mnesia_schema.erl
+++ b/lib/mnesia/src/mnesia_schema.erl
@@ -647,7 +647,15 @@ cs2list(Cs) when is_record(Cs, cstruct) ->
cs2list(CreateList) when is_list(CreateList) ->
CreateList;
-%% since 4.6
+cs2list(Cs) when element(1, Cs) == cstruct, tuple_size(Cs) == 20 ->
+ Tags = [name,type,
+ ram_copies,disc_copies,disc_only_copies,external_copies,
+ load_order,access_mode,majority,index,snmp,local_content,
+ record_name,attributes,
+ user_properties,frag_properties,storage_properties,
+ cookie,version],
+ rec2list(Tags, Tags, 2, Cs);
+%% since vsn-4.6 (protocol 8.2 or older)
cs2list(Cs) when element(1, Cs) == cstruct, tuple_size(Cs) == 19 ->
Tags = [name,type,ram_copies,disc_copies,disc_only_copies,
load_order,access_mode,majority,index,snmp,local_content,
@@ -657,7 +665,17 @@ cs2list(Cs) when element(1, Cs) == cstruct, tuple_size(Cs) == 19 ->
rec2list(Tags, Tags, 2, Cs).
cs2list(false, Cs) ->
- cs2list(Cs).
+ cs2list(Cs);
+cs2list({8,3}, Cs) ->
+ cs2list(Cs);
+cs2list({8,Minor}, Cs) when Minor =:= 2; Minor =:= 1 ->
+ Orig = record_info(fields, cstruct),
+ Tags = [name,type,ram_copies,disc_copies,disc_only_copies,
+ load_order,access_mode,majority,index,snmp,local_content,
+ record_name,attributes,
+ user_properties,frag_properties,storage_properties,
+ cookie,version],
+ rec2list(Tags, Orig, 2, Cs).
rec2list([Tag | Tags], [Tag | Orig], Pos, Rec) ->
Val = element(Pos, Rec),
@@ -667,8 +685,19 @@ rec2list([], _, _Pos, _Rec) ->
rec2list(Tags, [_|Orig], Pos, Rec) ->
rec2list(Tags, Orig, Pos+1, Rec).
-normalize_cs(Cstructs, _Node) ->
- Cstructs.
+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),
@@ -2795,11 +2824,23 @@ do_merge_schema(LockTabs0) ->
end.
fetch_cstructs(Node) ->
- rpc:call(Node, mnesia_controller, get_remote_cstructs, []).
+ Convert = mnesia_monitor:needs_protocol_conversion(Node),
+ case rpc:call(Node, mnesia_controller, get_remote_cstructs, []) of
+ {cstructs, Cs0, RemoteRunning1} when Convert ->
+ {cstructs, [list2cs(cs2list(Cs)) || Cs <- Cs0], RemoteRunning1};
+ Result ->
+ Result
+ end.
-need_old_cstructs() -> false.
+need_old_cstructs() ->
+ need_old_cstructs(val({schema, where_to_write})).
-need_old_cstructs(_Nodes) -> false.
+need_old_cstructs(Nodes) ->
+ Filter = fun(Node) -> mnesia_monitor:needs_protocol_conversion(Node) end,
+ case lists:filter(Filter, Nodes) of
+ [] -> false;
+ Ns -> lists:min([element(1, ?catch_val({protocol, Node})) || Node <- Ns])
+ end.
tab_to_nodes(Tab) when is_atom(Tab) ->
Cs = val({Tab, cstruct}),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 21:32:32 +0000