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-rw-r--r--lib/mnesia/src/mnesia_lib.erl72
1 files changed, 39 insertions, 33 deletions
diff --git a/lib/mnesia/src/mnesia_lib.erl b/lib/mnesia/src/mnesia_lib.erl
index ae6631646c..a32c69c59e 100644
--- a/lib/mnesia/src/mnesia_lib.erl
+++ b/lib/mnesia/src/mnesia_lib.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2014. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -115,6 +115,8 @@
mkcore/1,
not_active_here/1,
other_val/2,
+ other_val/1,
+ pr_other/2,
overload_read/0,
overload_read/1,
overload_set/2,
@@ -296,11 +298,7 @@ active_here(Tab) ->
not_active_here(Tab) ->
not active_here(Tab).
-exists(Fname) ->
- case file:open(Fname, [raw,read]) of
- {ok, F} ->file:close(F), true;
- _ -> false
- end.
+exists(Fname) -> filelib:is_regular(Fname).
dir() -> mnesia_monitor:get_env(dir).
@@ -393,16 +391,19 @@ unset(Var) ->
?ets_delete(mnesia_gvar, Var).
other_val(Var, Other) ->
+ case other_val(Var) of
+ error -> pr_other(Var, Other);
+ Val -> Val
+ end.
+
+other_val(Var) ->
case Var of
{_, where_to_read} -> nowhere;
{_, where_to_write} -> [];
{_, active_replicas} -> [];
- _ ->
- pr_other(Var, Other)
+ _ -> error
end.
--spec pr_other(_,_) -> no_return().
-
pr_other(Var, Other) ->
Why =
case is_running() of
@@ -596,7 +597,7 @@ coredump(CrashInfo) ->
Core = mkcore(CrashInfo),
Out = core_file(),
important("Writing Mnesia core to file: ~p...~p~n", [Out, CrashInfo]),
- file:write_file(Out, Core),
+ _ = file:write_file(Out, Core),
Out.
core_file() ->
@@ -620,7 +621,7 @@ mkcore(CrashInfo) ->
Core = [
CrashInfo,
{time, {date(), time()}},
- {self, catch process_info(self())},
+ {self, proc_dbg_info(self())},
{nodes, catch rpc:multicall(Nodes, ?MODULE, get_node_number, [])},
{applications, catch lists:sort(application:loaded_applications())},
{flags, catch init:get_arguments()},
@@ -697,7 +698,7 @@ relatives() ->
Info = fun(Name) ->
case whereis(Name) of
undefined -> false;
- Pid -> {true, {Name, Pid, catch process_info(Pid)}}
+ Pid -> {true, {Name, Pid, proc_dbg_info(Pid)}}
end
end,
lists:zf(Info, mnesia:ms()).
@@ -706,14 +707,14 @@ workers({workers, Loaders, Senders, Dumper}) ->
Info = fun({Pid, {send_table, Tab, _Receiver, _St}}) ->
case Pid of
undefined -> false;
- Pid -> {true, {Pid, Tab, catch process_info(Pid)}}
+ Pid -> {true, {Pid, Tab, proc_dbg_info(Pid)}}
end;
({Pid, What}) when is_pid(Pid) ->
- {true, {Pid, What, catch process_info(Pid)}};
+ {true, {Pid, What, proc_dbg_info(Pid)}};
({Name, Pid}) ->
case Pid of
undefined -> false;
- Pid -> {true, {Name, Pid, catch process_info(Pid)}}
+ Pid -> {true, {Name, Pid, proc_dbg_info(Pid)}}
end
end,
SInfo = lists:zf(Info, Senders),
@@ -727,13 +728,21 @@ locking_procs(LockList) when is_list(LockList) ->
Pid = Tid#tid.pid,
case node(Pid) == node() of
true ->
- {true, {Pid, catch process_info(Pid)}};
+ {true, {Pid, proc_dbg_info(Pid)}};
_ ->
false
end
end,
lists:zf(Info, UT).
+proc_dbg_info(Pid) ->
+ try
+ [process_info(Pid, current_stacktrace)|
+ process_info(Pid)]
+ catch _:R ->
+ [{process_info,crashed,R}]
+ end.
+
view() ->
Bin = mkcore({crashinfo, {"view only~n", []}}),
vcore(Bin).
@@ -806,9 +815,9 @@ vcore(File) ->
vcore_elem({schema_file, {ok, B}}) ->
Fname = "/tmp/schema.DAT",
- file:write_file(Fname, B),
- dets:view(Fname),
- file:delete(Fname);
+ _ = file:write_file(Fname, B),
+ _ = dets:view(Fname),
+ _ = file:delete(Fname);
vcore_elem({logfile, {ok, BinList}}) ->
Fun = fun({F, Info}) ->
@@ -922,7 +931,7 @@ random_time(Retries, _Counter0) ->
case get(random_seed) of
undefined ->
{X, Y, Z} = erlang:now(), %% time()
- random:seed(X, Y, Z),
+ _ = random:seed(X, Y, Z),
Time = Dup + random:uniform(MaxIntv),
%% dbg_out("---random_test rs ~w max ~w val ~w---~n", [Retries, MaxIntv, Time]),
Time;
@@ -958,20 +967,17 @@ report_system_event({'EXIT', Reason}, Event) ->
unlink(Pid),
%% We get an exit signal if server dies
- receive
- {'EXIT', Pid, _Reason} ->
- {error, {node_not_running, node()}}
- after 0 ->
- gen_event:stop(mnesia_event),
- ok
+ receive {'EXIT', Pid, _Reason} -> ok
+ after 0 -> gen_event:stop(mnesia_event)
end;
Error ->
Msg = "Mnesia(~p): Cannot report event ~p: ~p (~p)~n",
error_logger:format(Msg, [node(), Event, Reason, Error])
- end;
+ end,
+ ok;
report_system_event(_Res, _Event) ->
- ignore.
+ ok.
%% important messages are reported regardless of debug level
important(Format, Args) ->
@@ -1025,8 +1031,8 @@ copy_file(From, To) ->
case file:open(To, [raw, binary, write]) of
{ok, T} ->
Res = copy_file_loop(F, T, 8000),
- file:close(F),
- file:close(T),
+ ok = file:close(F),
+ ok = file:close(T),
Res;
{error, Reason} ->
{error, Reason}
@@ -1038,7 +1044,7 @@ copy_file(From, To) ->
copy_file_loop(F, T, ChunkSize) ->
case file:read(F, ChunkSize) of
{ok, Bin} ->
- file:write(T, Bin),
+ ok = file:write(T, Bin),
copy_file_loop(F, T, ChunkSize);
eof ->
ok;
@@ -1205,7 +1211,7 @@ dets_to_ets(Tabname, Tab, File, Type, Rep, Lock) ->
{keypos, 2}, {repair, Rep}]) of
{ok, Tabname} ->
Res = dets:to_ets(Tabname, Tab),
- Close(Tabname),
+ ok = Close(Tabname),
trav_ret(Res, Tab);
Other ->
Other