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-rw-r--r--lib/stdlib/src/dets.erl9
-rw-r--r--lib/stdlib/test/dets_SUITE.erl54
2 files changed, 37 insertions, 26 deletions
diff --git a/lib/stdlib/src/dets.erl b/lib/stdlib/src/dets.erl
index 8c5c86f3b9..c32da1624f 100644
--- a/lib/stdlib/src/dets.erl
+++ b/lib/stdlib/src/dets.erl
@@ -2114,6 +2114,8 @@ test_bchunk_format(Head, Term) ->
do_open_file([Fname, Verbose], Parent, Server, Ref) ->
case catch fopen2(Fname, Ref) of
+ {error, {tooshort, _}} ->
+ err({error, {not_a_dets_file, Fname}});
{error, _Reason} = Error ->
err(Error);
{ok, Head} ->
@@ -2127,11 +2129,10 @@ do_open_file([Fname, Verbose], Parent, Server, Ref) ->
[Bad]),
{error, {dets_bug, Fname, Bad}}
end;
-do_open_file([Tab, OpenArgs, Verb], Parent, Server, Ref) ->
+do_open_file([Tab, OpenArgs, Verb], Parent, Server, _Ref) ->
case catch fopen3(Tab, OpenArgs) of
{error, {tooshort, _}} ->
- _ = file:delete(OpenArgs#open_args.file),
- do_open_file([Tab, OpenArgs, Verb], Parent, Server, Ref);
+ err({error, {not_a_dets_file, OpenArgs#open_args.file}});
{error, _Reason} = Error ->
err(Error);
{ok, Head} ->
@@ -2487,7 +2488,6 @@ fopen2(Fname, Tab) ->
{ok, _} ->
Acc = read_write,
Ram = false,
- %% Fd is not always closed upon error, but exit is soon called.
{ok, Fd, FH} = read_file_header(Fname, Acc, Ram),
Mod = FH#fileheader.mod,
Do = case Mod:check_file_header(FH, Fd) of
@@ -2543,7 +2543,6 @@ fopen_existing_file(Tab, OpenArgs) ->
ram_file = Ram, delayed_write = CacheSz, auto_save =
Auto, access = Acc, version = Version, debug = Debug} =
OpenArgs,
- %% Fd is not always closed upon error, but exit is soon called.
{ok, Fd, FH} = read_file_header(Fname, Acc, Ram),
V9 = (Version =:= 9) or (Version =:= default),
MinF = (MinSlots =:= default) or (MinSlots =:= FH#fileheader.min_no_slots),
diff --git a/lib/stdlib/test/dets_SUITE.erl b/lib/stdlib/test/dets_SUITE.erl
index 0f6b76a629..00a5da42ad 100644
--- a/lib/stdlib/test/dets_SUITE.erl
+++ b/lib/stdlib/test/dets_SUITE.erl
@@ -772,9 +772,9 @@ open_1(Config, V) ->
crash(Fname, TypePos),
{error, {invalid_type_code,Fname}} = dets:open_file(Fname),
truncate(Fname, HeadSize - 10),
- {error, {tooshort,Fname}} = dets:open_file(Fname),
- {ok, TabRef} = dets:open_file(TabRef, [{file,Fname},{version,V}]),
- ok = dets:close(TabRef),
+ {error,{not_a_dets_file,Fname}} = dets:open_file(Fname),
+ {error,{not_a_dets_file,Fname}} =
+ dets:open_file(TabRef, [{file,Fname},{version,V}]),
file:delete(Fname),
{error,{file_error,{foo,bar},_}} = dets:is_dets_file({foo,bar}),
@@ -967,10 +967,12 @@ fast_init_table(Config) ->
{'EXIT', _} =
(catch dets:init_table(TabRef, fun(foo) -> bar end, {format,bchunk})),
dets:close(TabRef),
+ file:delete(Fname),
{ok, _} = dets:open_file(TabRef, Args),
{'EXIT', _} = (catch dets:init_table(TabRef, fun() -> foo end,
{format,bchunk})),
dets:close(TabRef),
+ file:delete(Fname),
{ok, _} = dets:open_file(TabRef, Args),
{'EXIT', {badarg, _}} =
(catch dets:init_table(TabRef, nofun, {format,bchunk})),
@@ -979,10 +981,12 @@ fast_init_table(Config) ->
away = (catch dets:init_table(TabRef, fun(_) -> throw(away) end,
{format,bchunk})),
dets:close(TabRef),
+ file:delete(Fname),
{ok, _} = dets:open_file(TabRef, Args),
{error, {init_fun, fopp}} =
dets:init_table(TabRef, fun(read) -> fopp end, {format,bchunk}),
dets:close(TabRef),
+ file:delete(Fname),
{ok, _} = dets:open_file(TabRef, Args),
dets:safe_fixtable(TabRef, true),
{error, {fixed_table, TabRef}} =
@@ -1389,23 +1393,6 @@ repair(Config, V) ->
{ok, TabRef} = dets:open_file(TabRef, [{file,Fname},{version,V}]),
ok = ins(TabRef, 100),
ok = dets:close(TabRef),
- truncate(Fname, HeadSize - 10),
- %% a new file is created ('tooshort')
- {ok, TabRef} = dets:open_file(TabRef,
- [{file,Fname},{version,V},
- {min_no_slots,1000},
- {max_no_slots,1000000}]),
- case dets:info(TabRef, no_slots) of
- undefined -> ok;
- {Min1,Slot1,Max1} ->
- true = Min1 =< Slot1, true = Slot1 =< Max1,
- true = 1000 < Min1, true = 1000+256 > Min1,
- true = 1000000 < Max1, true = (1 bsl 20)+256 > Max1
- end,
- 0 = dets:info(TabRef, size),
- no_keys_test(TabRef),
- _ = histogram(TabRef, silent),
- ok = dets:close(TabRef),
file:delete(Fname),
%% version bump (v8)
@@ -3925,6 +3912,7 @@ otp_11709(doc) ->
otp_11709(suite) ->
[];
otp_11709(Config) when is_list(Config) ->
+ Short = <<"foo">>,
Long = <<"a sufficiently long text">>,
%% Bug: leaking file descriptor
@@ -3934,7 +3922,31 @@ otp_11709(Config) when is_list(Config) ->
false = dets:is_dets_file(File),
check_pps(P0),
- file:delete(File),
+ %% Bug: deleting file
+ Args = [[{access, A}, {repair, R}] ||
+ A <- [read, read_write],
+ R <- [true, false, force]],
+ Fun1 = fun(S, As) ->
+ P1 = pps(),
+ ok = file:write_file(File, S),
+ {error,{not_a_dets_file,File}} = dets:open_file(File, As),
+ {ok, S} = file:read_file(File),
+ check_pps(P1)
+ end,
+ Fun2 = fun(S) ->
+ _ = [Fun1(S, As) || As <- Args],
+ ok
+ end,
+ ok = Fun2(Long), % no change here
+ ok = Fun2(Short), % mimic the behaviour for longer files
+
+ %% open_file/1
+ ok = file:write_file(File, Long),
+ {error,{not_a_dets_file,File}} = dets:open_file(File), % no change
+ ok = file:write_file(File, Short),
+ {error,{not_a_dets_file,File}} = dets:open_file(File), % mimic
+
+ _ = file:delete(File),
ok.
%%