From 4c8df9e1c898876865f557681371b52baab970e9 Mon Sep 17 00:00:00 2001 From: Hans Bolinder Date: Tue, 22 Nov 2016 15:50:50 +0100 Subject: stdlib: Remove support for Dets version 8 tables When at it, types have been added to record fields. --- lib/stdlib/doc/src/dets.xml | 61 +- lib/stdlib/src/Makefile | 2 - lib/stdlib/src/dets.erl | 480 +++--- lib/stdlib/src/dets.hrl | 162 +- lib/stdlib/src/dets_utils.erl | 26 +- lib/stdlib/src/dets_v8.erl | 1594 -------------------- lib/stdlib/src/dets_v9.erl | 112 +- lib/stdlib/src/stdlib.app.src | 1 - lib/stdlib/test/dets_SUITE.erl | 802 +++------- lib/stdlib/test/dets_SUITE_data/dets_test_v8b.dets | Bin 37396 -> 0 bytes .../dets_test_v8b_little_endian.dets | Bin 37396 -> 0 bytes lib/stdlib/test/dets_SUITE_data/version_8.dets | Bin 0 -> 35143 bytes lib/stdlib/test/dets_SUITE_data/version_r2d.dets | Bin 33885 -> 0 bytes lib/stdlib/test/dets_SUITE_data/version_r3b02.dets | Bin 34484 -> 0 bytes 14 files changed, 543 insertions(+), 2697 deletions(-) delete mode 100644 lib/stdlib/src/dets_v8.erl delete mode 100644 lib/stdlib/test/dets_SUITE_data/dets_test_v8b.dets delete mode 100644 lib/stdlib/test/dets_SUITE_data/dets_test_v8b_little_endian.dets create mode 100644 lib/stdlib/test/dets_SUITE_data/version_8.dets delete mode 100644 lib/stdlib/test/dets_SUITE_data/version_r2d.dets delete mode 100644 lib/stdlib/test/dets_SUITE_data/version_r3b02.dets diff --git a/lib/stdlib/doc/src/dets.xml b/lib/stdlib/doc/src/dets.xml index 2e4261d72e..eb6e32aecf 100644 --- a/lib/stdlib/doc/src/dets.xml +++ b/lib/stdlib/doc/src/dets.xml @@ -100,18 +100,12 @@ provided by Dets, neither is the limited support for concurrent updates that makes a sequence of first and next calls safe to use on fixed ETS tables. Both these - features will be provided by Dets in a future release of + features may be provided by Dets in a future release of Erlang/OTP. Until then, the Mnesia application (or some user-implemented method for locking) must be used to implement safe concurrency. Currently, no Erlang/OTP library has support for ordered disk-based term storage.

-

Two versions of the format used for storing objects on file are - supported by Dets. The first version, 8, is the format always used - for tables created by Erlang/OTP R7 and earlier. The second version, 9, - is the default version of tables created by Erlang/OTP R8 (and later - releases). Erlang/OTP R8 can create version 8 tables, and convert version - 8 tables to version 9, and conversely, upon request.

All Dets functions return {error, Reason} if an error occurs (first/1 and next/2 are exceptions, they @@ -190,9 +184,6 @@ - - - @@ -385,18 +376,13 @@

{bchunk_format, binary()} - An opaque binary describing the format of the objects returned by bchunk/2. The binary can be used as argument to - is_compatible_chunk_format/2. Only available for - version 9 tables.

+ is_compatible_chunk_format/2.

{hash, Hash} - Describes which BIF is used to calculate the hash values of the objects stored in the Dets table. Possible values of Hash:

- -

hash - Implies that the erlang:hash/2 BIF - is used.

-

phash - Implies that the erlang:phash/2 BIF is used.

@@ -413,8 +399,7 @@

{no_keys, integer >= 0()} - The number of different - keys stored in the table. Only available for version 9 - tables.

+ keys stored in the table.

{no_objects, integer >= 0()} - The number of objects @@ -424,8 +409,7 @@

{no_slots, {Min, Used, Max}} - The number of slots of the table. Min is the minimum number of slots, Used is the number of currently used slots, - and Max is the maximum number of slots. Only - available for version 9 tables.

+ and Max is the maximum number of slots.

{owner, pid()} - The pid of the process that @@ -466,10 +450,6 @@ time warp safe. Time warp safe code must use safe_fixed_monotonic_time instead.

 - -

{version, integer()} - The version of the format of - the table.

- @@ -662,8 +642,8 @@ ok objects at a time, until at least one object matches or the end of the table is reached. The default, indicated by giving N the value default, is to let - the number of objects vary depending on the sizes of the objects. If - Name is a version 9 table, all objects with the + the number of objects vary depending on the sizes of the objects. + All objects with the same key are always matched at the same time, which implies that more than N objects can sometimes be matched.

The table is always to be protected using @@ -743,9 +723,9 @@ ok end of the table is reached. The default, indicated by giving N the value default, is to let the number - of objects vary depending on the sizes of the objects. If - Name is a version 9 table, all matching objects - with the same key are always returned in the same reply, which implies + of objects vary depending on the sizes of the objects. All + matching objects with the same key are always returned + in the same reply, which implies that more than N objects can sometimes be returned.

The table is always to be protected using safe_fixtable/2 @@ -842,8 +822,7 @@ ok maximal value. Notice that a higher value can increase the table fragmentation, and a smaller value can decrease the fragmentation, at - the expense of execution time. Only available for version - 9 tables.

+ the expense of execution time.

{min_no_slots, @@ -880,12 +859,7 @@ ok FileName}} is returned if the table must be repaired.

Value force means that a reparation is made even if the table is properly closed. - This is how to convert tables created by older versions of - STDLIB. An example is tables hashed with the deprecated - erlang:hash/2 BIF. Tables created with Dets from - STDLIB version 1.8.2 or later use function - erlang:phash/2 or function erlang:phash2/1, - which is preferred.

+ This is a seldom needed option.

Option repair is ignored if the table is already open.

 @@ -893,15 +867,6 @@ ok type()} - The table type. Defaults to set.

 - -

{version, - version()} - The version of the format - used for the table. Defaults to 9. Tables on the format - used before Erlang/OTP R8 can be created by specifying value - 8. A version 8 table can be converted to a version 9 - table by specifying options {version,9} - and {repair,force}.

- @@ -1041,8 +1006,8 @@ ok a time, until at least one object matches or the end of the table is reached. The default, indicated by giving N the value default, is to let the number - of objects vary depending on the sizes of the objects. If - Name is a version 9 table, all objects with the + of objects vary depending on the sizes of the objects. All + objects with the same key are always handled at the same time, which implies that the match specification can be applied to more than N objects.

diff --git a/lib/stdlib/src/Makefile b/lib/stdlib/src/Makefile index 302834f9d0..d6c0ff8d8d 100644 --- a/lib/stdlib/src/Makefile +++ b/lib/stdlib/src/Makefile @@ -51,7 +51,6 @@ MODULES= \ dets_server \ dets_sup \ dets_utils \ - dets_v8 \ dets_v9 \ dict \ digraph \ @@ -225,7 +224,6 @@ $(EBIN)/beam_lib.beam: ../include/erl_compile.hrl ../../kernel/include/file.hrl $(EBIN)/dets.beam: dets.hrl ../../kernel/include/file.hrl $(EBIN)/dets_server.beam: dets.hrl $(EBIN)/dets_utils.beam: dets.hrl -$(EBIN)/dets_v8.beam: dets.hrl $(EBIN)/dets_v9.beam: dets.hrl $(EBIN)/erl_bits.beam: ../include/erl_bits.hrl $(EBIN)/erl_compile.beam: ../include/erl_compile.hrl ../../kernel/include/file.hrl diff --git a/lib/stdlib/src/dets.erl b/lib/stdlib/src/dets.erl index 8ce29f23d3..5bc9475fc8 100644 --- a/lib/stdlib/src/dets.erl +++ b/lib/stdlib/src/dets.erl @@ -105,9 +105,6 @@ %%% the file with the split indicator, size etc is held in ram by the %%% server at all times. %%% -%%% The parts specific for formats up to and including 8(c) are -%%% implemented in dets_v8.erl, parts specific for format 9 are -%%% implemented in dets_v9.erl. %% The method of hashing is the so called linear hashing algorithm %% with segments. @@ -140,28 +137,33 @@ %%% written, and a repair is forced next time the file is opened. -record(dets_cont, { - what, % object | bindings | select | bchunk - no_objs, % requested number of objects: default | integer() > 0 - bin, % small chunk not consumed, or 'eof' at end-of-file - alloc, % the part of the file not yet scanned, mostly a binary - tab, - proc, % the pid of the Dets process - match_program % true | compiled_match_spec() | undefined + what :: 'undefined' | 'bchunk' | 'bindings' | 'object' | 'select', + no_objs :: 'default' | pos_integer(), % requested number of objects + bin :: 'eof' | binary(), % small chunk not consumed, + % or 'eof' at end-of-file + alloc :: binary() % the part of the file not yet scanned + | {From :: non_neg_integer(), + To :: non_neg_integer, + binary()}, + tab :: tab_name(), + proc :: 'undefined' | pid(), % the pid of the Dets process + match_program :: 'true' + | 'undefined' + | {'match_spec', ets:comp_match_spec()} }). -record(open_args, { - file, - type, - keypos, - repair, - min_no_slots, - max_no_slots, - ram_file, - delayed_write, - auto_save, - access, - version, - debug + file :: list(), + type :: type(), + keypos :: keypos(), + repair :: 'force' | boolean(), + min_no_slots :: no_slots(), + max_no_slots :: no_slots(), + ram_file :: boolean(), + delayed_write :: cache_parms(), + auto_save :: auto_save(), + access :: access(), + debug :: boolean() }). -define(PATTERN_TO_OBJECT_MATCH_SPEC(Pat), [{Pat,[],['$_']}]). @@ -177,20 +179,13 @@ %%-define(PROFILE(C), C). -define(PROFILE(C), void). --type access() :: 'read' | 'read_write'. --type auto_save() :: 'infinity' | non_neg_integer(). -opaque bindings_cont() :: #dets_cont{}. -opaque cont() :: #dets_cont{}. --type keypos() :: pos_integer(). -type match_spec() :: ets:match_spec(). -type object() :: tuple(). --type no_slots() :: non_neg_integer() | 'default'. -opaque object_cont() :: #dets_cont{}. -type pattern() :: atom() | tuple(). -opaque select_cont() :: #dets_cont{}. --type tab_name() :: term(). --type type() :: 'bag' | 'duplicate_bag' | 'set'. --type version() :: 8 | 9 | 'default'. %%% Some further debug code was added in R12B-1 (stdlib-1.15.1): %%% - there is a new open_file() option 'debug'; @@ -273,19 +268,20 @@ delete_all_objects(Tab) -> delete_object(Tab, O) -> badarg(treq(Tab, {delete_object, [O]}), [Tab, O]). +%% Backwards compatibility. +fsck(Fname, _Version) -> + fsck(Fname). + %% Given a filename, fsck it. Debug. fsck(Fname) -> - fsck(Fname, default). - -fsck(Fname, Version) -> catch begin {ok, Fd, FH} = read_file_header(Fname, read, false), ?DEBUGF("FileHeader: ~p~n", [FH]), - case (FH#fileheader.mod):check_file_header(FH, Fd) of + case dets_v9:check_file_header(FH, Fd) of {error, not_closed} -> - fsck(Fd, make_ref(), Fname, FH, default, default, Version); - {ok, _Head, _Extra} -> - fsck(Fd, make_ref(), Fname, FH, default, default, Version); + fsck(Fd, make_ref(), Fname, FH, default, default); + {ok, _Head} -> + fsck(Fd, make_ref(), Fname, FH, default, default); Error -> Error end @@ -372,7 +368,7 @@ info(Tab) -> Item :: 'access' | 'auto_save' | 'bchunk_format' | 'hash' | 'file_size' | 'filename' | 'keypos' | 'memory' | 'no_keys' | 'no_objects' | 'no_slots' | 'owner' | 'ram_file' - | 'safe_fixed' | 'safe_fixed_monotonic_time' | 'size' | 'type' | 'version', + | 'safe_fixed' | 'safe_fixed_monotonic_time' | 'size' | 'type', Value :: term(). info(Tab, owner) -> @@ -640,8 +636,7 @@ open_file(File) -> | {'keypos', keypos()} | {'ram_file', boolean()} | {'repair', boolean() | 'force'} - | {'type', type()} - | {'version', version()}, + | {'type', type()}, Reason :: term(). open_file(Tab, Args) when is_list(Args) -> @@ -674,13 +669,13 @@ remove_user(Pid, From) -> Continuation2 :: select_cont(), MatchSpec :: match_spec(). -repair_continuation(#dets_cont{match_program = B}=Cont, MS) - when is_binary(B) -> +repair_continuation(#dets_cont{match_program = {match_spec, B}}=Cont, MS) -> case ets:is_compiled_ms(B) of true -> Cont; false -> - Cont#dets_cont{match_program = ets:match_spec_compile(MS)} + Cont#dets_cont{match_program = {match_spec, + ets:match_spec_compile(MS)}} end; repair_continuation(#dets_cont{}=Cont, _MS) -> Cont; @@ -999,7 +994,9 @@ init_chunk_match(Tab, Pat, What, N, Safe) when is_integer(N), N >= 0; case req(Proc, {match, MP, Spec, N, Safe}) of {done, L} -> {L, #dets_cont{tab = Tab, proc = Proc, - what = What, bin = eof}}; + what = What, bin = eof, + no_objs = default, + alloc = <<>>}}; {cont, State} -> chunk_match(State#dets_cont{what = What, tab = Tab, @@ -1041,17 +1038,17 @@ chunk_match(#dets_cont{proc = Proc}=State, Safe) -> do_foldl_bins(Bins, true) -> foldl_bins(Bins, []); -do_foldl_bins(Bins, MP) -> +do_foldl_bins(Bins, {match_spec, MP}) -> foldl_bins(Bins, MP, []). foldl_bins([], Terms) -> - %% Preserve time order (version 9). + %% Preserve time order. Terms; foldl_bins([Bin | Bins], Terms) -> foldl_bins(Bins, [binary_to_term(Bin) | Terms]). foldl_bins([], _MP, Terms) -> - %% Preserve time order (version 9). + %% Preserve time order. Terms; foldl_bins([Bin | Bins], MP, Terms) -> Term = binary_to_term(Bin), @@ -1068,7 +1065,7 @@ compile_match_spec(select, ?PATTERN_TO_OBJECT_MATCH_SPEC('_') = Spec) -> compile_match_spec(select, Spec) -> case catch ets:match_spec_compile(Spec) of X when is_binary(X) -> - {Spec, X}; + {Spec, {match_spec, X}}; _ -> badarg end; @@ -1091,16 +1088,10 @@ defaults(Tab, Args) -> delayed_write = ?DEFAULT_CACHE, auto_save = timer:minutes(?DEFAULT_AUTOSAVE), access = read_write, - version = default, debug = false}, Fun = fun repl/2, Defaults = lists:foldl(Fun, Defaults0, Args), - case Defaults#open_args.version of - 8 -> - Defaults#open_args{max_no_slots = default}; - _ -> - is_comp_min_max(Defaults) - end. + is_comp_min_max(Defaults). to_list(T) when is_atom(T) -> atom_to_list(T); to_list(T) -> T. @@ -1131,7 +1122,6 @@ repl({file, File}, Defs) when is_atom(File) -> repl({keypos, P}, Defs) when is_integer(P), P > 0 -> Defs#open_args{keypos =P}; repl({max_no_slots, I}, Defs) -> - %% Version 9 only. MaxSlots = is_max_no_slots(I), Defs#open_args{max_no_slots = MaxSlots}; repl({min_no_slots, I}, Defs) -> @@ -1147,8 +1137,9 @@ repl({type, T}, Defs) -> mem(T, [set, bag, duplicate_bag]), Defs#open_args{type =T}; repl({version, Version}, Defs) -> - V = is_version(Version), - Defs#open_args{version = V}; + %% Backwards compatibility. + is_version(Version), + Defs; repl({debug, Bool}, Defs) -> %% Not documented. mem(Bool, [true, false]), @@ -1164,16 +1155,15 @@ is_max_no_slots(default) -> default; is_max_no_slots(I) when is_integer(I), I > 0, I < 1 bsl 31 -> I. is_comp_min_max(Defs) -> - #open_args{max_no_slots = Max, min_no_slots = Min, version = V} = Defs, - case V of - _ when Min =:= default -> Defs; - _ when Max =:= default -> Defs; - _ -> true = Min =< Max, Defs + #open_args{max_no_slots = Max, min_no_slots = Min} = Defs, + if + Min =:= default -> Defs; + Max =:= default -> Defs; + true -> true = Min =< Max, Defs end. -is_version(default) -> default; -is_version(8) -> 8; -is_version(9) -> 9. +is_version(default) -> true; +is_version(9) -> true. mem(X, L) -> case lists:member(X, L) of @@ -1288,17 +1278,23 @@ badarg_exit(Reply, _A) -> init(Parent, Server) -> process_flag(trap_exit, true), - open_file_loop(#head{parent = Parent, server = Server}). - -open_file_loop(Head) -> %% The Dets server pretends the file is open before %% internal_open() has been called, which means that unless the %% internal_open message is applied first, other processes can %% find the pid by calling dets_server:get_pid() and do things %% before Head has been initialized properly. receive - ?DETS_CALL(From, {internal_open, _Ref, _Args}=Op) -> - do_apply_op(Op, From, Head, 0) + ?DETS_CALL(From, {internal_open, Ref, Args}=Op) -> + try do_internal_open(Parent, Server, From, Ref, Args) of + Head -> + open_file_loop(Head, 0) + catch + exit:normal -> + exit(normal); + _:Bad -> + bug_found(no_name, Op, Bad, From), + exit(Bad) % give up + end end. open_file_loop(Head, N) when element(1, Head#head.update_mode) =:= error -> @@ -1379,28 +1375,7 @@ do_apply_op(Op, From, Head, N) -> exit:normal -> exit(normal); _:Bad -> - Name = Head#head.name, - case dets_utils:debug_mode() of - true -> - %% If stream_op/5 found more requests, this is not - %% the last operation. - error_logger:format - ("** dets: Bug was found when accessing table ~w,~n" - "** dets: operation was ~p and reply was ~w.~n" - "** dets: Stacktrace: ~w~n", - [Name, Op, Bad, erlang:get_stacktrace()]); - false -> - error_logger:format - ("** dets: Bug was found when accessing table ~w~n", - [Name]) - end, - if - From =/= self() -> - From ! {self(), {error, {dets_bug, Name, Op, Bad}}}, - ok; - true -> % auto_save | may_grow | {delayed_write, _} - ok - end, + bug_found(Head#head.name, Op, Bad, From), open_file_loop(Head, N) end. @@ -1408,10 +1383,7 @@ apply_op(Op, From, Head, N) -> case Op of {add_user, Tab, OpenArgs}-> #open_args{file = Fname, type = Type, keypos = Keypos, - ram_file = Ram, access = Access, - version = Version} = OpenArgs, - VersionOK = (Version =:= default) or - (Head#head.version =:= Version), + ram_file = Ram, access = Access} = OpenArgs, %% min_no_slots and max_no_slots are not tested Res = if Tab =:= Head#head.name, @@ -1419,7 +1391,6 @@ apply_op(Op, From, Head, N) -> Head#head.type =:= Type, Head#head.ram_file =:= Ram, Head#head.access =:= Access, - VersionOK, Fname =:= Head#head.filename -> ok; true -> @@ -1475,21 +1446,14 @@ apply_op(Op, From, Head, N) -> From ! {self(), Res}, ok; {internal_open, Ref, Args} -> - ?PROFILE(ep:do()), - case do_open_file(Args, Head#head.parent, Head#head.server,Ref) of - {ok, H2} -> - From ! {self(), ok}, - H2; - Error -> - From ! {self(), Error}, - exit(normal) - end; + do_internal_open(Head#head.parent, Head#head.server, From, + Ref, Args); may_grow when Head#head.update_mode =/= saved -> if Head#head.update_mode =:= dirty -> %% Won't grow more if the table is full. {H2, _Res} = - (Head#head.mod):may_grow(Head, 0, many_times), + dets_v9:may_grow(Head, 0, many_times), {N + 1, H2}; true -> ok @@ -1519,21 +1483,10 @@ apply_op(Op, From, Head, N) -> From ! {self(), Res}, erlang:garbage_collect(), {0, H2}; - {delete_key, Keys} when Head#head.update_mode =:= dirty -> - if - Head#head.version =:= 8 -> - {H2, Res} = fdelete_key(Head, Keys), - From ! {self(), Res}, - {N + 1, H2}; - true -> - stream_op(Op, From, [], Head, N) - end; + {delete_key, _Keys} when Head#head.update_mode =:= dirty -> + stream_op(Op, From, [], Head, N); {delete_object, Objs} when Head#head.update_mode =:= dirty -> case check_objects(Objs, Head#head.keypos) of - true when Head#head.version =:= 8 -> - {H2, Res} = fdelete_object(Head, Objs), - From ! {self(), Res}, - {N + 1, H2}; true -> stream_op(Op, From, [], Head, N); false -> @@ -1551,10 +1504,6 @@ apply_op(Op, From, Head, N) -> H2; {insert, Objs} when Head#head.update_mode =:= dirty -> case check_objects(Objs, Head#head.keypos) of - true when Head#head.version =:= 8 -> - {H2, Res} = finsert(Head, Objs), - From ! {self(), Res}, - {N + 1, H2}; true -> stream_op(Op, From, [], Head, N); false -> @@ -1565,10 +1514,6 @@ apply_op(Op, From, Head, N) -> {H2, Res} = finsert_new(Head, Objs), From ! {self(), Res}, {N + 1, H2}; - {lookup_keys, Keys} when Head#head.version =:= 8 -> - {H2, Res} = flookup_keys(Head, Keys), - From ! {self(), Res}, - H2; {lookup_keys, _Keys} -> stream_op(Op, From, [], Head, N); {match_init, State, Safe} -> @@ -1584,10 +1529,6 @@ apply_op(Op, From, Head, N) -> {H2, Res} = fmatch(Head, MP, Spec, NObjs, Safe, From), From ! {self(), Res}, H2; - {member, Key} when Head#head.version =:= 8 -> - {H2, Res} = fmember(Head, Key), - From ! {self(), Res}, - H2; {member, _Key} = Op -> stream_op(Op, From, [], Head, N); {next, Key} -> @@ -1628,7 +1569,7 @@ apply_op(Op, From, Head, N) -> apply_op(WriteOp, From, H2, 0); WriteOp when Head#head.access =:= read_write, Head#head.update_mode =:= saved -> - case catch (Head#head.mod):mark_dirty(Head) of + case catch dets_v9:mark_dirty(Head) of ok -> start_auto_save_timer(Head), H2 = Head#head{update_mode = dirty}, @@ -1643,6 +1584,40 @@ apply_op(Op, From, Head, N) -> ok end. +bug_found(Name, Op, Bad, From) -> + case dets_utils:debug_mode() of + true -> + %% If stream_op/5 found more requests, this is not + %% the last operation. + error_logger:format + ("** dets: Bug was found when accessing table ~w,~n" + "** dets: operation was ~p and reply was ~w.~n" + "** dets: Stacktrace: ~w~n", + [Name, Op, Bad, erlang:get_stacktrace()]); + false -> + error_logger:format + ("** dets: Bug was found when accessing table ~w~n", + [Name]) + end, + if + From =/= self() -> + From ! {self(), {error, {dets_bug, Name, Op, Bad}}}, + ok; + true -> % auto_save | may_grow | {delayed_write, _} + ok + end. + +do_internal_open(Parent, Server, From, Ref, Args) -> + ?PROFILE(ep:do()), + case do_open_file(Args, Parent, Server, Ref) of + {ok, Head} -> + From ! {self(), ok}, + Head; + Error -> + From ! {self(), Error}, + exit(normal) + end. + start_auto_save_timer(Head) when Head#head.auto_save =:= infinity -> ok; start_auto_save_timer(Head) -> @@ -1650,7 +1625,7 @@ start_auto_save_timer(Head) -> _Ref = erlang:send_after(Millis, self(), ?DETS_CALL(self(), auto_save)), ok. -%% Version 9: Peek the message queue and try to evaluate several +%% Peek the message queue and try to evaluate several %% lookup requests in parallel. Evalute delete_object, delete and %% insert as well. stream_op(Op, Pid, Pids, Head, N) -> @@ -1760,7 +1735,7 @@ lookup_reply(P, O) -> %% Callback functions for system messages handling. %%----------------------------------------------------------------- system_continue(_Parent, _, Head) -> - open_file_loop(Head). + open_file_loop(Head, 0). system_terminate(Reason, _Parent, _, Head) -> _NewHead = do_stop(Head), @@ -1793,7 +1768,8 @@ read_file_header(FileName, Access, RamFile) -> dets_utils:pread_close(Fd, FileName, ?FILE_FORMAT_VERSION_POS, 4), if Version =< 8 -> - dets_v8:read_file_header(Fd, FileName); + _ = file:close(Fd), + throw({error, {format_8_no_longer_supported, FileName}}); Version =:= 9 -> dets_v9:read_file_header(Fd, FileName); true -> @@ -1820,7 +1796,7 @@ perform_save(Head, DoSync) when Head#head.update_mode =:= dirty; Head#head.update_mode =:= new_dirty -> case catch begin {Head1, []} = write_cache(Head), - {Head2, ok} = (Head1#head.mod):do_perform_save(Head1), + {Head2, ok} = dets_v9:do_perform_save(Head1), ok = ensure_written(Head2, DoSync), {Head2#head{update_mode = saved}, ok} end of @@ -1853,7 +1829,7 @@ ensure_written(Head, false) when not Head#head.ram_file -> do_bchunk_init(Head, Tab) -> case catch write_cache(Head) of {H2, []} -> - case (H2#head.mod):table_parameters(H2) of + case dets_v9:table_parameters(H2) of undefined -> {H2, {error, old_version}}; Parms -> @@ -1862,9 +1838,9 @@ do_bchunk_init(Head, Tab) -> L =:= <<>> -> eof; true -> <<>> end, - C0 = #dets_cont{no_objs = default, bin = Bin, alloc = L}, BinParms = term_to_binary(Parms), - {H2, {C0#dets_cont{tab = Tab, proc = self(),what = bchunk}, + {H2, {#dets_cont{no_objs = default, bin = Bin, alloc = L, + tab = Tab, proc = self(),what = bchunk}, [BinParms]}} end; {NewHead, _} = HeadError when is_record(NewHead, head) -> @@ -1904,16 +1880,8 @@ do_delete_all_objects(Head) -> max_no_slots = MaxSlots, cache = Cache} = Head, CacheSz = dets_utils:cache_size(Cache), ok = dets_utils:truncate(Fd, Fname, bof), - (Head#head.mod):initiate_file(Fd, Tab, Fname, Type, Kp, MinSlots, MaxSlots, - Ram, CacheSz, Auto, true). - -%% -> {NewHead, Reply}, Reply = ok | Error. -fdelete_key(Head, Keys) -> - do_delete(Head, Keys, delete_key). - -%% -> {NewHead, Reply}, Reply = ok | badarg | Error. -fdelete_object(Head, Objects) -> - do_delete(Head, Objects, delete_object). + dets_v9:initiate_file(Fd, Tab, Fname, Type, Kp, MinSlots, MaxSlots, + Ram, CacheSz, Auto, true). ffirst(H) -> Ref = make_ref(), @@ -1930,7 +1898,7 @@ ffirst1(H) -> ffirst(NH, 0). ffirst(H, Slot) -> - case (H#head.mod):slot_objs(H, Slot) of + case dets_v9:slot_objs(H, Slot) of '$end_of_table' -> {H, '$end_of_table'}; [] -> ffirst(H, Slot+1); [X|_] -> {H, element(H#head.keypos, X)} @@ -2067,7 +2035,7 @@ finfo(H, auto_save) -> {H, H#head.auto_save}; finfo(H, bchunk_format) -> case catch write_cache(H) of {H2, []} -> - case (H2#head.mod):table_parameters(H2) of + case dets_v9:table_parameters(H2) of undefined = Undef -> {H2, Undef}; Parms -> @@ -2100,7 +2068,7 @@ finfo(H, no_keys) -> {H2, _} = HeadError when is_record(H2, head) -> HeadError end; -finfo(H, no_slots) -> {H, (H#head.mod):no_slots(H)}; +finfo(H, no_slots) -> {H, dets_v9:no_slots(H)}; finfo(H, pid) -> {H, self()}; finfo(H, ram_file) -> {H, H#head.ram_file}; finfo(H, safe_fixed) -> @@ -2127,7 +2095,7 @@ finfo(H, size) -> HeadError end; finfo(H, type) -> {H, H#head.type}; -finfo(H, version) -> {H, H#head.version}; +finfo(H, version) -> {H, 9}; finfo(H, _) -> {H, undefined}. file_size(Fd, FileName) -> @@ -2136,8 +2104,6 @@ file_size(Fd, FileName) -> test_bchunk_format(_Head, undefined) -> false; -test_bchunk_format(Head, _Term) when Head#head.version =:= 8 -> - false; test_bchunk_format(Head, Term) -> dets_v9:try_bchunk_header(Term, Head) =/= not_ok. @@ -2206,7 +2172,7 @@ do_finit(Head, Init, Format, NoSlots) -> #head{fptr = Fd, type = Type, keypos = Kp, auto_save = Auto, cache = Cache, filename = Fname, ram_file = Ram, min_no_slots = MinSlots0, max_no_slots = MaxSlots, - name = Tab, update_mode = UpdateMode, mod = HMod} = Head, + name = Tab, update_mode = UpdateMode} = Head, CacheSz = dets_utils:cache_size(Cache), {How, Head1} = case Format of @@ -2219,9 +2185,10 @@ do_finit(Head, Init, Format, NoSlots) -> {general_init, Head}; true -> ok = dets_utils:truncate(Fd, Fname, bof), - {ok, H} = HMod:initiate_file(Fd, Tab, Fname, Type, Kp, - MinSlots, MaxSlots, Ram, - CacheSz, Auto, false), + {ok, H} = + dets_v9:initiate_file(Fd, Tab, Fname, Type, Kp, + MinSlots, MaxSlots, Ram, + CacheSz, Auto, false), {general_init, H} end; bchunk -> @@ -2230,7 +2197,7 @@ do_finit(Head, Init, Format, NoSlots) -> end, case How of bchunk_init -> - case HMod:bchunk_init(Head1, Init) of + case dets_v9:bchunk_init(Head1, Init) of {ok, NewHead} -> {ok, NewHead#head{update_mode = dirty}}; Error -> @@ -2238,10 +2205,10 @@ do_finit(Head, Init, Format, NoSlots) -> end; general_init -> Cntrs = ets:new(dets_init, []), - Input = HMod:bulk_input(Head1, Init, Cntrs), + Input = dets_v9:bulk_input(Head1, Init, Cntrs), SlotNumbers = {Head1#head.min_no_slots, bulk_init, MaxSlots}, {Reply, SizeData} = - do_sort(Head1, SlotNumbers, Input, Cntrs, Fname, not_used), + do_sort(Head1, SlotNumbers, Input, Cntrs, Fname), Bulk = true, case Reply of {ok, NoDups, H1} -> @@ -2297,7 +2264,8 @@ fmatch(Head, MP, Spec, N, Safe, From) -> {NewHead, Reply} = flookup_keys(Head, Keys), case Reply of Objs when is_list(Objs) -> - MatchingObjs = ets:match_spec_run(Objs, MP), + {match_spec, MS} = MP, + MatchingObjs = ets:match_spec_run(Objs, MS), {NewHead, {done, MatchingObjs}}; Error -> {NewHead, Error} @@ -2377,7 +2345,7 @@ fmatch_delete(Head, C) -> {[], _} -> {Head, {done, 0}}; {RTs, NC} -> - MP = C#dets_cont.match_program, + {match_spec, MP} = C#dets_cont.match_program, case catch filter_binary_terms(RTs, MP, []) of {'EXIT', _} -> Bad = dets_utils:bad_object(fmatch_delete, RTs), @@ -2405,7 +2373,7 @@ do_fmatch_delete_var_keys(Head, MP, _Spec, From) -> C0 = init_scan(NewHead, default), {NewHead, {cont, C0#dets_cont{match_program = MP}, 0}}. -do_fmatch_constant_keys(Head, Keys, MP) -> +do_fmatch_constant_keys(Head, Keys, {match_spec, MP}) -> case flookup_keys(Head, Keys) of {NewHead, ReadTerms} when is_list(ReadTerms) -> Terms = filter_terms(ReadTerms, MP, []), @@ -2454,18 +2422,8 @@ do_delete(Head, Things, What) -> HeadError end. -fmember(Head, Key) -> - case catch begin - {Head2, [{_NoPid,Objs}]} = - update_cache(Head, [Key], {lookup, nopid}), - {Head2, Objs =/= []} - end of - {NewHead, _} = Reply when is_record(NewHead, head) -> - Reply - end. - fnext(Head, Key) -> - Slot = (Head#head.mod):db_hash(Key, Head), + Slot = dets_v9:db_hash(Key, Head), Ref = make_ref(), case catch {Ref, fnext(Head, Key, Slot)} of {Ref, {H, R}} -> @@ -2476,7 +2434,7 @@ fnext(Head, Key) -> fnext(H, Key, Slot) -> {NH, []} = write_cache(H), - case (H#head.mod):slot_objs(NH, Slot) of + case dets_v9:slot_objs(NH, Slot) of '$end_of_table' -> {NH, '$end_of_table'}; L -> fnext_search(NH, Key, Slot, L) end. @@ -2490,7 +2448,7 @@ fnext_search(H, K, Slot, L) -> %% We've got to continue to search for the next key in the next slot fnext_slot(H, K, Slot) -> - case (H#head.mod):slot_objs(H, Slot) of + case dets_v9:slot_objs(H, Slot) of '$end_of_table' -> {H, '$end_of_table'}; [] -> fnext_slot(H, K, Slot+1); L -> {H, element(H#head.keypos, hd(L))} @@ -2518,11 +2476,10 @@ fopen2(Fname, Tab) -> Acc = read_write, Ram = false, {ok, Fd, FH} = read_file_header(Fname, Acc, Ram), - Mod = FH#fileheader.mod, - Do = case Mod:check_file_header(FH, Fd) of - {ok, Head1, ExtraInfo} -> + Do = case dets_v9:check_file_header(FH, Fd) of + {ok, Head1} -> Head2 = Head1#head{filename = Fname}, - try {ok, Mod:init_freelist(Head2, ExtraInfo)} + try {ok, dets_v9:init_freelist(Head2)} catch throw:_ -> {repair, " has bad free lists, repairing ..."} @@ -2536,8 +2493,7 @@ fopen2(Fname, Tab) -> case Do of {repair, Mess} -> io:format(user, "dets: file ~tp~s~n", [Fname, Mess]), - Version = default, - case fsck(Fd, Tab, Fname, FH, default, default, Version) of + case fsck(Fd, Tab, Fname, FH, default, default) of ok -> fopen2(Fname, Tab); Error -> @@ -2570,33 +2526,23 @@ fopen_existing_file(Tab, OpenArgs) -> #open_args{file = Fname, type = Type, keypos = Kp, repair = Rep, min_no_slots = MinSlots, max_no_slots = MaxSlots, ram_file = Ram, delayed_write = CacheSz, auto_save = - Auto, access = Acc, version = Version, debug = Debug} = + Auto, access = Acc, debug = Debug} = OpenArgs, {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), MaxF = (MaxSlots =:= default) or (MaxSlots =:= FH#fileheader.max_no_slots), - Mod = (FH#fileheader.mod), - Wh = case Mod:check_file_header(FH, Fd) of - {ok, Head, true} when Rep =:= force, Acc =:= read_write, - FH#fileheader.version =:= 9, - FH#fileheader.no_colls =/= undefined, - MinF, MaxF, V9 -> - {compact, Head, true}; - {ok, _Head, _Extra} when Rep =:= force, Acc =:= read -> + Wh = case dets_v9:check_file_header(FH, Fd) of + {ok, Head} when Rep =:= force, Acc =:= read_write, + FH#fileheader.no_colls =/= undefined, + MinF, MaxF -> + {compact, Head}; + {ok, _Head} when Rep =:= force, Acc =:= read -> throw({error, {access_mode, Fname}}); - {ok, Head, need_compacting} when Acc =:= read -> - {final, Head, true}; % Version 8 only. - {ok, _Head, need_compacting} when Rep =:= true -> - %% The file needs to be compacted due to a very big - %% and fragmented free_list. Version 8 only. - M = " is now compacted ...", - {repair, M}; - {ok, _Head, _Extra} when Rep =:= force -> + {ok, _Head} when Rep =:= force -> M = ", repair forced.", {repair, M}; - {ok, Head, ExtraInfo} -> - {final, Head, ExtraInfo}; + {ok, Head} -> + {final, Head}; {error, not_closed} when Rep =:= force, Acc =:= read_write -> M = ", repair forced.", {repair, M}; @@ -2605,17 +2551,13 @@ fopen_existing_file(Tab, OpenArgs) -> {repair, M}; {error, not_closed} when Rep =:= false -> throw({error, {needs_repair, Fname}}); - {error, version_bump} when Rep =:= true, Acc =:= read_write -> - %% Version 8 only - M = " old version, upgrading ...", - {repair, M}; {error, Reason} -> throw({error, {Reason, Fname}}) end, Do = case Wh of - {Tag, Hd, Extra} when Tag =:= final; Tag =:= compact -> + {Tag, Hd} when Tag =:= final; Tag =:= compact -> Hd1 = Hd#head{filename = Fname}, - try {Tag, Mod:init_freelist(Hd1, Extra)} + try {Tag, dets_v9:init_freelist(Hd1)} catch throw:_ -> {repair, " has bad free lists, repairing ..."} @@ -2643,23 +2585,20 @@ fopen_existing_file(Tab, OpenArgs) -> "now repairing ...~n", [Fname]), {ok, Fd2, _FH} = read_file_header(Fname, Acc, Ram), do_repair(Fd2, Tab, Fname, FH, MinSlots, MaxSlots, - Version, OpenArgs) + OpenArgs) end; {repair, Mess} -> io:format(user, "dets: file ~tp~s~n", [Fname, Mess]), do_repair(Fd, Tab, Fname, FH, MinSlots, MaxSlots, - Version, OpenArgs); - _ when FH#fileheader.version =/= Version, Version =/= default -> - throw({error, {version_mismatch, Fname}}); + OpenArgs); {final, H} -> H1 = H#head{auto_save = Auto}, open_final(H1, Fname, Acc, Ram, CacheSz, Tab, Debug) end. -do_repair(Fd, Tab, Fname, FH, MinSlots, MaxSlots, Version, OpenArgs) -> - case fsck(Fd, Tab, Fname, FH, MinSlots, MaxSlots, Version) of +do_repair(Fd, Tab, Fname, FH, MinSlots, MaxSlots, OpenArgs) -> + case fsck(Fd, Tab, Fname, FH, MinSlots, MaxSlots) of ok -> - %% No need to update 'version'. erlang:garbage_collect(), fopen3(Tab, OpenArgs#open_args{repair = false}); Error -> @@ -2673,8 +2612,8 @@ open_final(Head, Fname, Acc, Ram, CacheSz, Tab, Debug) -> filename = Fname, name = Tab, cache = dets_utils:new_cache(CacheSz)}, - init_disk_map(Head1#head.version, Tab, Debug), - (Head1#head.mod):cache_segps(Head1#head.fptr, Fname, Head1#head.next), + init_disk_map(Tab, Debug), + dets_v9:cache_segps(Head1#head.fptr, Fname, Head1#head.next), check_growth(Head1), {ok, Head1}. @@ -2683,7 +2622,7 @@ fopen_init_file(Tab, OpenArgs) -> #open_args{file = Fname, type = Type, keypos = Kp, min_no_slots = MinSlotsArg, max_no_slots = MaxSlotsArg, ram_file = Ram, delayed_write = CacheSz, auto_save = Auto, - version = UseVersion, debug = Debug} = OpenArgs, + debug = Debug} = OpenArgs, MinSlots = choose_no_slots(MinSlotsArg, ?DEFAULT_MIN_NO_SLOTS), MaxSlots = choose_no_slots(MaxSlotsArg, ?DEFAULT_MAX_NO_SLOTS), FileSpec = if @@ -2691,20 +2630,11 @@ fopen_init_file(Tab, OpenArgs) -> true -> Fname end, {ok, Fd} = dets_utils:open(FileSpec, open_args(read_write, Ram)), - Version = if - UseVersion =:= default -> - case os:getenv("DETS_USE_FILE_FORMAT") of - "8" -> 8; - _ -> 9 - end; - true -> - UseVersion - end, - Mod = version2module(Version), %% No need to truncate an empty file. - init_disk_map(Version, Tab, Debug), - case catch Mod:initiate_file(Fd, Tab, Fname, Type, Kp, MinSlots, MaxSlots, - Ram, CacheSz, Auto, true) of + init_disk_map(Tab, Debug), + case catch dets_v9:initiate_file(Fd, Tab, Fname, Type, Kp, + MinSlots, MaxSlots, + Ram, CacheSz, Auto, true) of {error, Reason} when Ram -> _ = file:close(Fd), throw({error, Reason}); @@ -2719,15 +2649,13 @@ fopen_init_file(Tab, OpenArgs) -> end. %% Debug. -init_disk_map(9, Name, Debug) -> +init_disk_map(Name, Debug) -> case Debug orelse dets_utils:debug_mode() of true -> dets_utils:init_disk_map(Name); false -> ok - end; -init_disk_map(_Version, _Name, _Debug) -> - ok. + end. open_args(Access, RamFile) -> A1 = case Access of @@ -2740,15 +2668,7 @@ open_args(Access, RamFile) -> end, A1 ++ A2 ++ [binary, read]. -version2module(V) when V =< 8 -> dets_v8; -version2module(9) -> dets_v9. - -module2version(dets_v8) -> 8; -module2version(dets_v9) -> 9; -module2version(not_used) -> 9. - %% -> ok | throw(Error) -%% For version 9 tables only. compact(SourceHead) -> #head{name = Tab, filename = Fname, fptr = SFd, type = Type, keypos = Kp, ram_file = Ram, auto_save = Auto} = SourceHead, @@ -2759,7 +2679,7 @@ compact(SourceHead) -> %% It is normally not possible to have two open tables in the same %% process since the process dictionary is used for caching %% segment pointers, but here is works anyway--when reading a file - %% serially the pointers to not need to be used. + %% serially the pointers do not need to be used. Head = case catch dets_v9:prep_table_copy(Fd, Tab, Tmp, Type, Kp, Ram, CacheSz, Auto, TblParms) of {ok, H} -> @@ -2794,7 +2714,7 @@ compact(SourceHead) -> %% -> ok | Error %% Closes Fd. -fsck(Fd, Tab, Fname, FH, MinSlotsArg, MaxSlotsArg, Version) -> +fsck(Fd, Tab, Fname, FH, MinSlotsArg, MaxSlotsArg) -> %% MinSlots and MaxSlots are the option values. #fileheader{min_no_slots = MinSlotsFile, max_no_slots = MaxSlotsFile} = FH, @@ -2807,10 +2727,10 @@ fsck(Fd, Tab, Fname, FH, MinSlotsArg, MaxSlotsArg, Version) -> %% If the number of objects (keys) turns out to be significantly %% different from NoSlots, we try again with the correct number of %% objects (keys). - case fsck_try(Fd, Tab, FH, Fname, SlotNumbers, Version) of + case fsck_try(Fd, Tab, FH, Fname, SlotNumbers) of {try_again, BetterNoSlots} -> BetterSlotNumbers = {MinSlots, BetterNoSlots, MaxSlots}, - case fsck_try(Fd, Tab, FH, Fname, BetterSlotNumbers, Version) of + case fsck_try(Fd, Tab, FH, Fname, BetterSlotNumbers) of {try_again, _} -> _ = file:close(Fd), {error, {cannot_repair, Fname}}; @@ -2829,7 +2749,7 @@ choose_no_slots(NoSlots, _) -> NoSlots. %% Initiating a table using a fun and repairing (or converting) a %% file are completely different things, but nevertheless the same %% method is used in both cases... -fsck_try(Fd, Tab, FH, Fname, SlotNumbers, Version) -> +fsck_try(Fd, Tab, FH, Fname, SlotNumbers) -> Tmp = tempfile(Fname), #fileheader{type = Type, keypos = KeyPos} = FH, {_MinSlots, EstNoSlots, MaxSlots} = SlotNumbers, @@ -2838,7 +2758,7 @@ fsck_try(Fd, Tab, FH, Fname, SlotNumbers, Version) -> max_no_slots = MaxSlots, ram_file = false, delayed_write = ?DEFAULT_CACHE, auto_save = infinity, access = read_write, - version = Version, debug = false}, + debug = false}, case catch fopen3(Tab, OpenArgs) of {ok, Head} -> case fsck_try_est(Head, Fd, Fname, SlotNumbers, FH) of @@ -2888,10 +2808,9 @@ assure_no_file(File) -> %% -> {ok, NewHead} | {try_again, integer()} | Error fsck_try_est(Head, Fd, Fname, SlotNumbers, FH) -> %% Mod is the module to use for reading input when repairing. - Mod = FH#fileheader.mod, Cntrs = ets:new(dets_repair, []), - Input = Mod:fsck_input(Head, Fd, Cntrs, FH), - {Reply, SizeData} = do_sort(Head, SlotNumbers, Input, Cntrs, Fname, Mod), + Input = dets_v9:fsck_input(Head, Fd, Cntrs, FH), + {Reply, SizeData} = do_sort(Head, SlotNumbers, Input, Cntrs, Fname), Bulk = false, case Reply of {ok, NoDups, H1} -> @@ -2906,14 +2825,13 @@ fsck_try_est(Head, Fd, Fname, SlotNumbers, FH) -> Else end. -do_sort(Head, SlotNumbers, Input, Cntrs, Fname, Mod) -> - OldV = module2version(Mod), +do_sort(Head, SlotNumbers, Input, Cntrs, Fname) -> %% output_objs/4 replaces {LogSize,NoObjects} in Cntrs by %% {LogSize,Position,Data,NoObjects | NoCollections}. %% Data = {FileName,FileDescriptor} | [object()] - %% For small tables Data may be a list of objects which is more + %% For small tables Data can be a list of objects which is more %% efficient since no temporary files are created. - Output = (Head#head.mod):output_objs(OldV, Head, SlotNumbers, Cntrs), + Output = dets_v9:output_objs(Head, SlotNumbers, Cntrs), TmpDir = filename:dirname(Fname), Reply = (catch file_sorter:sort(Input, Output, [{format, binary},{tmpdir, TmpDir}])), @@ -2954,13 +2872,6 @@ fsck_copy1([SzData | L], Head, Bulk, NoDups) -> {ok, Copied} when Copied =:= ExpectedSize; NoObjects =:= 0 -> % the segments fsck_copy1(L, Head, Bulk, NoDups); - {ok, Copied} when Bulk, Head#head.version =:= 8 -> - NoZeros = ExpectedSize - Copied, - Dups = NoZeros div Size, - Addr = Pos+Copied, - NewHead = free_n_objects(Head, Addr, Size-1, NoDups), - NewNoDups = NoDups - Dups, - fsck_copy1(L, NewHead, Bulk, NewNoDups); {ok, _Copied} -> % should never happen close_files(Bulk, L, Head), Reason = if Bulk -> initialization_failed; @@ -2975,13 +2886,6 @@ fsck_copy1([], Head, _Bulk, NoDups) when NoDups =/= 0 -> fsck_copy1([], Head, _Bulk, _NoDups) -> {ok, Head#head{update_mode = dirty}}. -free_n_objects(Head, _Addr, _Size, 0) -> - Head; -free_n_objects(Head, Addr, Size, N) -> - {NewHead, _} = dets_utils:free(Head, Addr, Size), - NewAddr = Addr + Size + 1, - free_n_objects(NewHead, NewAddr, Size, N-1). - close_files(false, SizeData, Head) -> _ = file:close(Head#head.fptr), close_files(true, SizeData, Head); @@ -3000,7 +2904,7 @@ close_tmp(Fd) -> fslot(H, Slot) -> case catch begin {NH, []} = write_cache(H), - Objs = (NH#head.mod):slot_objs(NH, Slot), + Objs = dets_v9:slot_objs(NH, Slot), {NH, Objs} end of {NewHead, _Objects} = Reply when is_record(NewHead, head) -> @@ -3050,7 +2954,7 @@ where_is_object(Head, Object) -> true -> case catch write_cache(Head) of {NewHead, []} -> - {NewHead, (Head#head.mod):find_object(NewHead, Object)}; + {NewHead, dets_v9:find_object(NewHead, Object)}; {NewHead, _} = HeadError when is_record(NewHead, head) -> HeadError end; @@ -3063,13 +2967,9 @@ check_objects([T | Ts], Kp) when tuple_size(T) >= Kp -> check_objects(L, _Kp) -> L =:= []. -no_things(Head) when Head#head.no_keys =:= undefined -> - Head#head.no_objects; no_things(Head) -> Head#head.no_keys. -file_no_things(FH) when FH#fileheader.no_keys =:= undefined -> - FH#fileheader.no_objects; file_no_things(FH) -> FH#fileheader.no_keys. @@ -3110,7 +3010,7 @@ update_cache(Head, ToAdd) -> if Lookup; NewSize >= Cache#cache.tsize -> %% The cache is considered full, or some lookup. - {NewHead, LU, PwriteList} = (Head#head.mod):write_cache(Head1), + {NewHead, LU, PwriteList} = dets_v9:write_cache(Head1), {NewHead, Found ++ LU, PwriteList}; NewC =:= [] -> {Head1, Found, []}; @@ -3195,7 +3095,7 @@ delayed_write(Head, WrTime) -> %% -> {NewHead, [LookedUpObject]} | throw({NewHead, Error}) write_cache(Head) -> - {Head1, LU, PwriteList} = (Head#head.mod):write_cache(Head), + {Head1, LU, PwriteList} = dets_v9:write_cache(Head), {NewHead, ok} = dets_utils:pwrite(Head1, PwriteList), {NewHead, LU}. @@ -3248,7 +3148,7 @@ scan(Head, C) -> % when is_record(C, dets_cont) scan(Bin, Head, From, To, L, [], R, {C, Head#head.type}). scan(Bin, H, From, To, L, Ts, R, {C0, Type} = C) -> - case (H#head.mod):scan_objs(H, Bin, From, To, L, Ts, R, Type) of + case dets_v9:scan_objs(H, Bin, From, To, L, Ts, R, Type) of {more, NFrom, NTo, NL, NTs, NR, Sz} -> scan_read(H, NFrom, NTo, Sz, NL, NTs, NR, C); {stop, <<>>=B, NFrom, NTo, <<>>=NL, NTs} -> @@ -3317,7 +3217,7 @@ file_info(FileName) -> case catch read_file_header(FileName, read, false) of {ok, Fd, FH} -> _ = file:close(Fd), - (FH#fileheader.mod):file_info(FH); + dets_v9:file_info(FH); Other -> Other end. @@ -3332,15 +3232,13 @@ get_head_field(Fd, Field) -> view(FileName) -> case catch read_file_header(FileName, read, false) of {ok, Fd, FH} -> - Mod = FH#fileheader.mod, - try Mod:check_file_header(FH, Fd) of - {ok, H0, ExtraInfo} -> - Mod = FH#fileheader.mod, - case Mod:check_file_header(FH, Fd) of - {ok, H0, ExtraInfo} -> - H = Mod:init_freelist(H0, ExtraInfo), + try dets_v9:check_file_header(FH, Fd) of + {ok, H0} -> + case dets_v9:check_file_header(FH, Fd) of + {ok, H0} -> + H = dets_v9:init_freelist(H0), v_free_list(H), - Mod:v_segments(H), + dets_v9:v_segments(H), ok; X -> X diff --git a/lib/stdlib/src/dets.hrl b/lib/stdlib/src/dets.hrl index 6ebeb96156..b5e732b08f 100644 --- a/lib/stdlib/src/dets.hrl +++ b/lib/stdlib/src/dets.hrl @@ -21,7 +21,7 @@ -define(DEFAULT_MIN_NO_SLOTS, 256). -define(DEFAULT_MAX_NO_SLOTS, 32*1024*1024). -define(DEFAULT_AUTOSAVE, 3). % minutes --define(DEFAULT_CACHE, {3000, 14000}). % {delay,size} in {milliseconds,bytes} +-define(DEFAULT_CACHE, {3000, 14000}). % cache_parms() %% Type. -define(SET, 1). @@ -46,83 +46,111 @@ -define(DETS_CALL(Pid, Req), {'$dets_call', Pid, Req}). +-type access() :: 'read' | 'read_write'. +-type auto_save() :: 'infinity' | non_neg_integer(). +-type hash_bif() :: 'phash' | 'phash2'. +-type keypos() :: pos_integer(). +-type no_colls() :: [{LogSize :: non_neg_integer(), + NoCollections :: non_neg_integer()}]. +-type no_slots() :: 'default' | non_neg_integer(). +-type tab_name() :: term(). +-type type() :: 'bag' | 'duplicate_bag' | 'set'. +-type update_mode() :: 'dirty' + | 'new_dirty' + | 'saved' + | {'error', Reason :: term()}. + %% Record holding the file header and more. -record(head, { - m, % size - m2, % m * 2 - next, % next position for growth (segm mgmt only) - fptr, % the file descriptor - no_objects, % number of objects in table, - no_keys, % number of keys (version 9 only) - maxobjsize, % 2-log of the size of the biggest object - % collection (version 9 only) + m :: non_neg_integer(), % size + m2 :: non_neg_integer(), % m * 2 + next :: non_neg_integer(), % next position for growth + % (segm mgmt only) + fptr :: file:fd(), % the file descriptor + no_objects :: non_neg_integer() , % number of objects in table, + no_keys :: non_neg_integer(), % number of keys + maxobjsize :: 'undefined' | non_neg_integer(), % 2-log of + % the size of the biggest object collection n, % split indicator - type, % set | bag | duplicate_bag - keypos, % default is 1 as for ets - freelists, % tuple of free lists of buddies - % if fixed =/= false, then a pair of freelists - freelists_p, % cached FreelistsPointer - no_collections, % [{LogSize,NoCollections}] | undefined; number of - % object collections per size (version 9(b)) - auto_save, % Integer | infinity - update_mode, % saved | dirty | new_dirty | {error, Reason} - fixed = false, % false | {now_time(), [{pid(),Counter}]} - % time of first fix, and number of fixes per process - hash_bif, % hash bif used for this file (phash2, phash, hash) - has_md5, % whether the header has an MD5 sum (version 9(c)) - min_no_slots, % minimum number of slots (default or integer) - max_no_slots, % maximum number of slots (default or integer) - cache, % cache(). Write cache. - - filename, % name of the file being used - access = read_write, % read | read_write - ram_file = false, % true | false - name, % the name of the table - - parent, % The supervisor of Dets processes. - server, % The creator of Dets processes. - - %% Depending on the file format: - version, - mod, - bump, - base + type :: type(), + keypos :: keypos(), % default is 1 as for ets + freelists :: 'undefined' + | tuple(), % tuple of free lists of buddies + % if fixed =/= false, then a pair of freelists + freelists_p :: 'undefined' + | non_neg_integer(), % cached FreelistsPointer + no_collections :: 'undefined' + | no_colls(), % number of object collections + % per size (version 9(b)) + auto_save :: auto_save(), + update_mode :: update_mode(), + fixed = false :: 'false' + | {{integer(), integer()}, % time of first fix, + [{pid(), % and number of fixes per process + non_neg_integer()}]}, + hash_bif :: hash_bif(), % hash bif used for this file + has_md5 :: boolean(), % whether the header has + % an MD5 sum (version 9(c)) + min_no_slots :: no_slots(), % minimum number of slots + max_no_slots :: no_slots(), % maximum number of slots + cache :: 'undefined' | cache(), % Write cache. + + filename :: file:name(), % name of the file being used + access = read_write :: access(), + ram_file = false :: boolean(), + name :: tab_name(), % the name of the table + + parent :: 'undefined' | pid(), % The supervisor of Dets processes. + server :: 'undefined' | pid(), % The creator of Dets processes. + + bump :: non_neg_integer(), + base :: non_neg_integer() }). %% Info extracted from the file header. -record(fileheader, { - freelist, - fl_base, - cookie, - closed_properly, - type, - version, - m, - next, - keypos, - no_objects, - no_keys, - min_no_slots, - max_no_slots, - no_colls, - hash_method, - read_md5, - has_md5, - md5, - trailer, - eof, - n, - mod + freelist :: non_neg_integer(), + fl_base :: non_neg_integer(), + cookie :: non_neg_integer(), + closed_properly :: non_neg_integer(), + type :: 'badtype' | type(), + version :: non_neg_integer(), + m :: non_neg_integer(), + next :: non_neg_integer(), + keypos :: keypos(), + no_objects :: non_neg_integer(), + no_keys :: non_neg_integer(), + min_no_slots :: non_neg_integer(), + max_no_slots :: non_neg_integer(), + no_colls :: 'undefined' | no_colls(), + hash_method :: non_neg_integer(), + read_md5 :: binary(), + has_md5 :: boolean(), + md5 :: binary(), + trailer :: non_neg_integer(), + eof :: non_neg_integer(), + n }). +-type delay() :: non_neg_integer(). +-type threshold() :: non_neg_integer(). +-type cache_parms() :: + {Delay :: delay(), % max time items are kept in RAM only, + % in milliseconds + Size :: threshold()}. % threshold size of cache, in bytes + %% Write Cache. -record(cache, { - cache, % [{Key,{Seq,Item}}], write cache, last item first - csize, % current size of the cached items - inserts, % upper limit on number of inserted keys - wrtime, % last write or update time - tsize, % threshold size of cache, in bytes - delay % max time items are kept in RAM only, in milliseconds + cache :: % write cache, last item first + [{Key :: term(), + {Seq :: non_neg_integer(), Item :: term()}}], + csize :: non_neg_integer(), % current size of the cached items + inserts :: % upper limit on number of inserted keys + non_neg_integer(), + wrtime :: 'undefined' | integer(), % last write or update time + tsize :: threshold(), % threshold size of cache + delay :: delay() % max time items are kept in RAM only }). +-type cache() :: #cache{}. diff --git a/lib/stdlib/src/dets_utils.erl b/lib/stdlib/src/dets_utils.erl index 34a8ddddaa..da6ebd18f2 100644 --- a/lib/stdlib/src/dets_utils.erl +++ b/lib/stdlib/src/dets_utils.erl @@ -20,13 +20,13 @@ -module(dets_utils). %% Utility functions common to several dets file formats. -%% To be used from dets, dets_v8 and dets_v9 only. +%% To be used from modules dets and dets_v9 only. -export([cmp/2, msort/1, mkeysort/2, mkeysearch/3, family/1]). -export([rename/2, pread/2, pread/4, ipread/3, pwrite/2, write/2, truncate/2, position/2, sync/1, open/2, truncate/3, fwrite/3, - write_file/2, position/3, position_close/3, pwrite/4, + write_file/2, position/3, position_close/3, pwrite/3, pread_close/4, read_n/2, pread_n/3, read_4/2]). -export([code_to_type/1, type_to_code/1]). @@ -44,8 +44,6 @@ all_allocated_as_list/1, find_allocated/4, find_next_allocated/3, log2/1, make_zeros/1]). --export([init_slots_from_old_file/2]). - -export([list_to_tree/1, tree_to_bin/5]). -compile({inline, [{sz2pos,1}, {adjust_addr,3}]}). @@ -308,12 +306,6 @@ position_close(Fd, FileName, Pos) -> OK -> OK end. -pwrite(Fd, FileName, Position, B) -> - case file:pwrite(Fd, Position, B) of - ok -> ok; - Error -> file_error(FileName, {error, Error}) - end. - pwrite(Fd, FileName, Bins) -> case file:pwrite(Fd, Bins) of ok -> @@ -478,20 +470,6 @@ new_cache({Delay, Size}) -> %%% Ullman. I think buddy systems were invented by Knuth, a long %%% time ago. -init_slots_from_old_file([{Slot,Addr} | T], Ftab) -> - init_slot(Slot+1,[{Slot,Addr} | T], Ftab); -init_slots_from_old_file([], Ftab) -> - Ftab. - -init_slot(_Slot,[], Ftab) -> - Ftab; % should never happen -init_slot(_Slot,[{_Addr,0}|T], Ftab) -> - init_slots_from_old_file(T, Ftab); -init_slot(Slot,[{_Slot1,Addr}|T], Ftab) -> - Stree = element(Slot, Ftab), - %% io:format("init_slot ~p:~p~n",[Slot, Addr]), - init_slot(Slot,T,setelement(Slot, Ftab, bplus_insert(Stree, Addr))). - %%% The free lists are kept in RAM, and written to the end of the file %%% from time to time. It is possible that a considerable amount of %%% memory is used for a fragmented file. diff --git a/lib/stdlib/src/dets_v8.erl b/lib/stdlib/src/dets_v8.erl deleted file mode 100644 index 1bf53d91b1..0000000000 --- a/lib/stdlib/src/dets_v8.erl +++ /dev/null @@ -1,1594 +0,0 @@ -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2001-2016. All Rights Reserved. -%% -%% Licensed under the Apache License, Version 2.0 (the "License"); -%% you may not use this file except in compliance with the License. -%% You may obtain a copy of the License at -%% -%% http://www.apache.org/licenses/LICENSE-2.0 -%% -%% Unless required by applicable law or agreed to in writing, software -%% distributed under the License is distributed on an "AS IS" BASIS, -%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -%% See the License for the specific language governing permissions and -%% limitations under the License. -%% -%% %CopyrightEnd% -%% --module(dets_v8). - -%% Dets files, implementation part. This module handles versions up to -%% and including 8(c). To be called from dets.erl only. - --export([mark_dirty/1, read_file_header/2, - check_file_header/2, do_perform_save/1, initiate_file/11, - init_freelist/2, fsck_input/4, - bulk_input/3, output_objs/4, write_cache/1, may_grow/3, - find_object/2, re_hash/2, slot_objs/2, scan_objs/8, - db_hash/2, no_slots/1, table_parameters/1]). - --export([file_info/1, v_segments/1]). - --export([cache_segps/3]). - -%% For backward compatibility. --export([sz2pos/1]). - --dialyzer(no_improper_lists). - --compile({inline, [{sz2pos,1},{scan_skip,7}]}). --compile({inline, [{skip_bytes,5}, {get_segp,1}]}). --compile({inline, [{wl_lookup,5}]}). --compile({inline, [{actual_seg_size,0}]}). - --include("dets.hrl"). - -%% The layout of the file is : -%% -%% bytes decsription -%% ---------------------- File header -%% 4 FreelistsPointer -%% 4 Cookie -%% 4 ClosedProperly (pos=8) -%% 4 Type (pos=12) -%% 4 Version (pos=16) -%% 4 M -%% 4 Next -%% 4 KeyPos -%% 4 NoObjects -%% 4 N -%% ------------------ end of file header -%% 4*8192 SegmentArray -%% ------------------ -%% 4*256 First segment -%% ----------------------------- This is BASE. -%% ??? Objects (free and alive) -%% 4*256 Second segment (2 kB now, due to a bug) -%% ??? Objects (free and alive) -%% ... more objects and segments ... -%% ----------------------------- -%% ??? Free lists -%% ----------------------------- -%% 4 File size, in bytes. - -%% The first slot (0) in the segment array always points to the -%% pre-allocated first segment. -%% Before we can find an object we must find the slot where the -%% object resides. Each slot is a (possibly empty) list (or chain) of -%% objects that hash to the same slot. If the value stored in the -%% slot is zero, the slot chain is empty. If the slot value is -%% non-zero, the value points to a position in the file where the -%% chain starts. Each object in a chain has the following layout: -%% -%% bytes decsription -%% -------------------- -%% 4 Pointer to the next object of the chain. -%% 4 Size of the object in bytes (Sz). -%% 4 Status (FREE or ACTIVE) -%% Sz Binary representing the object -%% -%% The status field is used while repairing a file (but not next or size). -%% -%%|---------------| -%%| head | -%%| | -%%| | -%%|_______________| -%%| |------| -%%|___seg ptr1____| | -%%| | | -%%|__ seg ptr 2___| | -%%| | | segment 1 -%%| .... | V _____________ -%% | | -%% | | -%% |___slot 0 ____| -%% | | -%% |___slot 1 ____|-----| -%% | | | -%% | ..... | | 1:st obj in slot 1 -%% V segment 1 -%% |-----------| -%% | next | -%% |___________| -%% | size | -%% |___________| -%% | status | -%% |___________| -%% | | -%% | | -%% | obj | -%% | | - -%%% -%%% File header -%%% - --define(HEADSZ, 40). % The size of the file header, in bytes. --define(SEGSZ, 256). % Size of a segment, in words. --define(SEGSZ_LOG2, 8). --define(SEGARRSZ, 8192). % Maximal number of segments. --define(SEGADDR(SegN), (?HEADSZ + (4 * (SegN)))). --define(BASE, ?SEGADDR((?SEGSZ + ?SEGARRSZ))). --define(MAXOBJS, (?SEGSZ * ?SEGARRSZ)). % 2 M objects - --define(SLOT2SEG(S), ((S) bsr ?SEGSZ_LOG2)). - -%% BIG is used for hashing. BIG must be greater than the maximum -%% number of slots, currently MAXOBJS. --define(BIG, 16#ffffff). - -%% Hard coded positions into the file header: --define(FREELIST_POS, 0). --define(CLOSED_PROPERLY_POS, 8). --define(D_POS, 20). --define(NO_OBJECTS_POS, (?D_POS + 12)). - -%% The version of a dets file is indicated by the ClosedProperly -%% field. Version 6 was used in the R1A release, and version 7 in the -%% R1B release up to and including the R3B01 release. Both version 6 -%% and version 7 indicate properly closed files by the value -%% CLOSED_PROPERLY. -%% -%% The current version, 8, has three sub-versions: -%% -%% - 8(a), indicated by the value CLOSED_PROPERLY (same as in versions 6 -%% and 7), introduced in R3B02; -%% - 8(b), indicated by the value CLOSED_PROPERLY2(_NEED_COMPACTING), -%% introduced in R5A and used up to and including R6A; -%% - 8(c), indicated by the value CLOSED_PROPERLY_NEW_HASH(_NEED_COMPACTING), -%% in use since R6B. -%% -%% The difference between the 8(a) and the 8(b) versions is the format -%% used for free lists saved on dets files. -%% The 8(c) version uses a different hashing algorithm, erlang:phash -%% (former versions use erlang:hash). -%% Version 8(b) files are only converted to version 8(c) if repair is -%% done, so we need compatibility with 8(b) for a _long_ time. -%% -%% There are known bugs due to the fact that keys and objects are -%% sometimes compared (==) and sometimes matched (=:=). The version -%% used by default (9, see dets_v9.erl) does not have this problem. - --define(NOT_PROPERLY_CLOSED,0). --define(CLOSED_PROPERLY,1). --define(CLOSED_PROPERLY2,2). --define(CLOSED_PROPERLY2_NEED_COMPACTING,3). --define(CLOSED_PROPERLY_NEW_HASH,4). --define(CLOSED_PROPERLY_NEW_HASH_NEED_COMPACTING,5). - --define(FILE_FORMAT_VERSION, 8). --define(CAN_BUMP_BY_REPAIR, [6, 7]). --define(CAN_CONVERT_FREELIST, [8]). - -%%% -%%% Object header (next, size, status). -%%% - --define(OHDSZ, 12). % The size of the object header, in bytes. --define(STATUS_POS, 8). % Position of the status field. - -%% The size of each object is a multiple of 16. -%% BUMP is used when repairing files. --define(BUMP, 16). - --define(ReadAhead, 512). - -%%-define(DEBUGF(X,Y), io:format(X, Y)). --define(DEBUGF(X,Y), void). - -%% -> ok | throw({NewHead,Error}) -mark_dirty(Head) -> - Dirty = [{?CLOSED_PROPERLY_POS, <>}], - {_NewHead, ok} = dets_utils:pwrite(Head, Dirty), - ok = dets_utils:sync(Head), - {ok, _Pos} = dets_utils:position(Head, Head#head.freelists_p), - ok = dets_utils:truncate(Head, cur). - -%% -> {ok, head()} | throw(Error) -initiate_file(Fd, Tab, Fname, Type, Kp, MinSlots, MaxSlots, - Ram, CacheSz, Auto, _DoInitSegments) -> - Freelist = 0, - Cookie = ?MAGIC, - ClosedProperly = ?NOT_PROPERLY_CLOSED, % immediately overwritten - Version = ?FILE_FORMAT_VERSION, - Factor = est_no_segments(MinSlots), - N = 0, - M = Next = ?SEGSZ * Factor, - NoObjects = 0, - dets_utils:pwrite(Fd, Fname, 0, - <>), % Initialize first segment - %% We must set the first slot of the segment pointer array to - %% point to the first segment - Pos = ?SEGADDR(0), - SegP = (?HEADSZ + (4 * ?SEGARRSZ)), - dets_utils:pwrite(Fd, Fname, Pos, <>), - segp_cache(Pos, SegP), - - Ftab = dets_utils:init_alloc(?BASE), - H0 = #head{freelists=Ftab, fptr = Fd, base = ?BASE}, - {H1, Ws} = init_more_segments(H0, 1, Factor, undefined, []), - - %% This is not optimal but simple: always initiate the segments. - dets_utils:pwrite(Fd, Fname, Ws), - - %% Return a new nice head structure - Head = #head{ - m = M, - m2 = M * 2, - next = Next, - fptr = Fd, - no_objects = NoObjects, - n = N, - type = Type, - update_mode = dirty, - freelists = H1#head.freelists, - auto_save = Auto, - hash_bif = phash, - keypos = Kp, - min_no_slots = Factor * ?SEGSZ, - max_no_slots = no_segs(MaxSlots) * ?SEGSZ, - - ram_file = Ram, - filename = Fname, - name = Tab, - cache = dets_utils:new_cache(CacheSz), - version = Version, - bump = ?BUMP, - base = ?BASE, - mod = ?MODULE - }, - {ok, Head}. - -est_no_segments(MinSlots) when 1 + ?SLOT2SEG(MinSlots) > ?SEGARRSZ -> - ?SEGARRSZ; -est_no_segments(MinSlots) -> - 1 + ?SLOT2SEG(MinSlots). - -init_more_segments(Head, SegNo, Factor, undefined, Ws) when SegNo < Factor -> - init_more_segments(Head, SegNo, Factor, seg_zero(), Ws); -init_more_segments(Head, SegNo, Factor, SegZero, Ws) when SegNo < Factor -> - {NewHead, W} = allocate_segment(Head, SegZero, SegNo), - init_more_segments(NewHead, SegNo+1, Factor, SegZero, W++Ws); -init_more_segments(Head, _SegNo, _Factor, _SegZero, Ws) -> - {Head, Ws}. - -allocate_segment(Head, SegZero, SegNo) -> - %% may throw error: - {NewHead, Segment, _} = dets_utils:alloc(Head, 4 * ?SEGSZ), - InitSegment = {Segment, SegZero}, - Pos = ?SEGADDR(SegNo), - segp_cache(Pos, Segment), - SegPointer = {Pos, <>}, - {NewHead, [InitSegment, SegPointer]}. - -%% Read free lists (using a Buddy System) from file. -init_freelist(Head, {convert_freelist,_Version}) -> - %% This function converts the saved freelist of the form - %% [{Slot1,Addr1},{Addr1,Addr2},...,{AddrN,0},{Slot2,Addr},...] - %% i.e each slot is a linked list which ends with a 0. - %% This is stored in a bplus_tree per Slot. - %% Each Slot is a position in a tuple. - - Ftab = dets_utils:empty_free_lists(), - Pos = Head#head.freelists_p, - case catch prterm(Head, Pos, ?OHDSZ) of - {0, _Sz, Term} -> - FreeList1 = lists:reverse(Term), - FreeList = dets_utils:init_slots_from_old_file(FreeList1, Ftab), - Head#head{freelists = FreeList, base = ?BASE}; - _ -> - throw({error, {bad_freelists, Head#head.filename}}) - end; -init_freelist(Head, _) -> - %% bplus_tree stored as is - Pos = Head#head.freelists_p, - case catch prterm(Head, Pos, ?OHDSZ) of - {0, _Sz, Term} -> - Head#head{freelists = Term, base = ?BASE}; - _ -> - throw({error, {bad_freelists, Head#head.filename}}) - end. - -%% -> {ok, Fd, fileheader()} | throw(Error) -read_file_header(Fd, FileName) -> - {ok, Bin} = dets_utils:pread_close(Fd, FileName, 0, ?HEADSZ), - [Freelist, Cookie, CP, Type2, Version, M, Next, Kp, NoObjects, N] = - bin2ints(Bin), - {ok, EOF} = dets_utils:position_close(Fd, FileName, eof), - {ok, <>} = dets_utils:pread_close(Fd, FileName, EOF-4, 4), - FH = #fileheader{freelist = Freelist, - fl_base = ?BASE, - cookie = Cookie, - closed_properly = CP, - type = dets_utils:code_to_type(Type2), - version = Version, - m = M, - next = Next, - keypos = Kp, - no_objects = NoObjects, - min_no_slots = ?DEFAULT_MIN_NO_SLOTS, - max_no_slots = ?DEFAULT_MAX_NO_SLOTS, - trailer = FileSize, - eof = EOF, - n = N, - mod = ?MODULE}, - {ok, Fd, FH}. - -%% -> {ok, head(), ExtraInfo} | {error, Reason} (Reason lacking file name) -%% ExtraInfo = {convert_freelist, Version} | true | need_compacting -check_file_header(FH, Fd) -> - Test = - if - FH#fileheader.cookie =/= ?MAGIC -> - {error, not_a_dets_file}; - FH#fileheader.type =:= badtype -> - {error, invalid_type_code}; - FH#fileheader.version =/= ?FILE_FORMAT_VERSION -> - case lists:member(FH#fileheader.version, - ?CAN_BUMP_BY_REPAIR) of - true -> - {error, version_bump}; - false -> - {error, bad_version} - end; - FH#fileheader.trailer =/= FH#fileheader.eof -> - {error, not_closed}; - FH#fileheader.closed_properly =:= ?CLOSED_PROPERLY -> - case lists:member(FH#fileheader.version, - ?CAN_CONVERT_FREELIST) of - true -> - {ok, {convert_freelist, FH#fileheader.version}, hash}; - false -> - {error, not_closed} % should not happen - end; - FH#fileheader.closed_properly =:= ?CLOSED_PROPERLY2 -> - {ok, true, hash}; - FH#fileheader.closed_properly =:= - ?CLOSED_PROPERLY2_NEED_COMPACTING -> - {ok, need_compacting, hash}; - FH#fileheader.closed_properly =:= ?CLOSED_PROPERLY_NEW_HASH -> - {ok, true, phash}; - FH#fileheader.closed_properly =:= - ?CLOSED_PROPERLY_NEW_HASH_NEED_COMPACTING -> - {ok, need_compacting, phash}; - FH#fileheader.closed_properly =:= ?NOT_PROPERLY_CLOSED -> - {error, not_closed}; - FH#fileheader.closed_properly > - ?CLOSED_PROPERLY_NEW_HASH_NEED_COMPACTING -> - {error, not_closed}; - true -> - {error, not_a_dets_file} - end, - case Test of - {ok, ExtraInfo, HashAlg} -> - H = #head{ - m = FH#fileheader.m, - m2 = FH#fileheader.m * 2, - next = FH#fileheader.next, - fptr = Fd, - no_objects= FH#fileheader.no_objects, - n = FH#fileheader.n, - type = FH#fileheader.type, - update_mode = saved, - auto_save = infinity, % not saved on file - fixed = false, % not saved on file - freelists_p = FH#fileheader.freelist, - hash_bif = HashAlg, - keypos = FH#fileheader.keypos, - min_no_slots = FH#fileheader.min_no_slots, - max_no_slots = FH#fileheader.max_no_slots, - version = ?FILE_FORMAT_VERSION, - mod = ?MODULE, - bump = ?BUMP, - base = FH#fileheader.fl_base}, - {ok, H, ExtraInfo}; - Error -> - Error - end. - -cache_segps(Fd, FileName, M) -> - NSegs = no_segs(M), - {ok, Bin} = dets_utils:pread_close(Fd, FileName, ?HEADSZ, 4 * NSegs), - Fun = fun(S, P) -> segp_cache(P, S), P+4 end, - lists:foldl(Fun, ?HEADSZ, bin2ints(Bin)). - -no_segs(NoSlots) -> - ?SLOT2SEG(NoSlots - 1) + 1. - -bin2ints(<>) -> - [Int | bin2ints(B)]; -bin2ints(<<>>) -> - []. - -%%% -%%% Repair, conversion and initialization of a dets file. -%%% - -bulk_input(Head, InitFun, Cntrs) -> - bulk_input(Head, InitFun, Cntrs, make_ref()). - -bulk_input(Head, InitFun, Cntrs, Ref) -> - fun(close) -> - ok; - (read) -> - case catch {Ref, InitFun(read)} of - {Ref, end_of_input} -> - end_of_input; - {Ref, {L0, NewInitFun}} when is_list(L0), - is_function(NewInitFun) -> - Kp = Head#head.keypos, - case catch bulk_objects(L0, Head, Cntrs, Kp, []) of - {'EXIT', _Error} -> - _ = (catch NewInitFun(close)), - {error, invalid_objects_list}; - L -> - {L, bulk_input(Head, NewInitFun, Cntrs, Ref)} - end; - {Ref, Value} -> - {error, {init_fun, Value}}; - Error -> - throw({thrown, Error}) - end - end. - -bulk_objects([T | Ts], Head, Cntrs, Kp, L) -> - BT = term_to_binary(T), - Sz = byte_size(BT), - LogSz = sz2pos(Sz+?OHDSZ), - count_object(Cntrs, LogSz), - Key = element(Kp, T), - bulk_objects(Ts, Head, Cntrs, Kp, [make_object(Head, Key, LogSz, BT) | L]); -bulk_objects([], _Head, _Cntrs, _Kp, L) -> - L. - --define(FSCK_SEGMENT, 10000). - --define(DCT(D, CT), [D | CT]). - --define(VNEW(N, E), erlang:make_tuple(N, E)). --define(VSET(I, V, E), setelement(I, V, E)). --define(VGET(I, V), element(I, V)). - -%% OldVersion not used, assuming later versions have been converted already. -output_objs(OldVersion, Head, SlotNumbers, Cntrs) -> - fun(close) -> - {ok, 0, Head}; - ([]) -> - output_objs(OldVersion, Head, SlotNumbers, Cntrs); - (L) -> - %% Descending sizes. - Count = lists:sort(ets:tab2list(Cntrs)), - RCount = lists:reverse(Count), - NoObjects = lists:foldl(fun({_Sz,No}, A) -> A + No end, 0, Count), - {_, MinSlots, _} = SlotNumbers, - if - %% Using number of objects for bags and duplicate bags - %% is not ideal; number of (unique) keys should be - %% used instead. The effect is that there will be more - %% segments than "necessary". - MinSlots =/= bulk_init, - abs(?SLOT2SEG(NoObjects) - ?SLOT2SEG(MinSlots)) > 5, - (NoObjects < ?MAXOBJS) -> - {try_again, NoObjects}; - true -> - Head1 = Head#head{no_objects = NoObjects}, - SegSz = actual_seg_size(), - {_, End, _} = dets_utils:alloc(Head, SegSz-1), - %% Now {LogSize,NoObjects} in Cntrs is replaced by - %% {LogSize,Position,{FileName,FileDescriptor},NoObjects}. - {Head2, CT} = allocate_all_objects(Head1, RCount, Cntrs), - [E | Es] = bin2term(L, []), - {NE, Acc, DCT1} = - output_slots(E, Es, [E], Head2, ?DCT(0, CT)), - NDCT = write_all_sizes(DCT1, Cntrs), - Max = ets:info(Cntrs, size), - output_objs2(NE, Acc, Head2, Cntrs, NDCT, End, Max,Max) - end - end. - -output_objs2(E, Acc, Head, Cntrs, DCT, End, 0, MaxNoChunks) -> - NDCT = write_all_sizes(DCT, Cntrs), - output_objs2(E, Acc, Head, Cntrs, NDCT, End, MaxNoChunks, MaxNoChunks); -output_objs2(E, Acc, Head, Cntrs, DCT, End, ChunkI, MaxNoChunks) -> - fun(close) -> - DCT1 = output_slot(Acc, Head, DCT), - NDCT = write_all_sizes(DCT1, Cntrs), - ?DCT(NoDups, CT) = NDCT, - [SegAddr | []] = ?VGET(tuple_size(CT), CT), - FinalZ = End - SegAddr, - [{?FSCK_SEGMENT, _, {FileName, Fd}, _}] = - ets:lookup(Cntrs, ?FSCK_SEGMENT), - ok = dets_utils:fwrite(Fd, FileName, - dets_utils:make_zeros(FinalZ)), - NewHead = Head#head{no_objects = Head#head.no_objects - NoDups}, - {ok, NoDups, NewHead}; - (L) -> - Es = bin2term(L, []), - {NE, NAcc, NDCT} = output_slots(E, Es, Acc, Head, DCT), - output_objs2(NE, NAcc, Head, Cntrs, NDCT, End, - ChunkI-1, MaxNoChunks) - end. - -%% By allocating bigger objects before smaller ones, holes in the -%% buddy system memory map are avoided. Unfortunately, the segments -%% are always allocated first, so if there are objects bigger than a -%% segment, there is a hole to handle. (Haven't considered placing the -%% segments among other objects of the same size.) -allocate_all_objects(Head, Count, Cntrs) -> - SegSize = actual_seg_size(), - {Head1, HSz, HN, HA} = alloc_hole(Count, Head, SegSize), - {Max, _} = hd(Count), - CT = ?VNEW(Max+1, not_used), - {Head2, NCT} = allocate_all(Head1, Count, Cntrs, CT), - Head3 = free_hole(Head2, HSz, HN, HA), - {Head3, NCT}. - -alloc_hole([{LSize,_} | _], Head, SegSz) when ?POW(LSize-1) > SegSz -> - {_, SegAddr, _} = dets_utils:alloc(Head, SegSz-1), - Size = ?POW(LSize-1)-1, - {_, Addr, _} = dets_utils:alloc(Head, Size), - N = (Addr - SegAddr) div SegSz, - Head1 = dets_utils:alloc_many(Head, SegSz, N, SegAddr), - {Head1, SegSz-1, N, SegAddr}; -alloc_hole(_Count, Head, _SegSz) -> - {Head, 0, 0, 0}. - -free_hole(Head, _Size, 0, _Addr) -> - Head; -free_hole(Head, Size, N, Addr) -> - {Head1, _} = dets_utils:free(Head, Addr, Size), - free_hole(Head1, Size, N-1, Addr+Size+1). - -%% One (temporary) file for each buddy size, write all objects of that -%% size to the file. -allocate_all(Head, [{LSize,NoObjects} | Count], Cntrs, CT) -> - Size = ?POW(LSize-1)-1, - {_Head, Addr, _} = dets_utils:alloc(Head, Size), - NewHead = dets_utils:alloc_many(Head, Size+1, NoObjects, Addr), - {FileName, Fd} = temp_file(Head, LSize), - true = ets:insert(Cntrs, {LSize, Addr, {FileName, Fd}, NoObjects}), - NCT = ?VSET(LSize, CT, [Addr | []]), - allocate_all(NewHead, Count, Cntrs, NCT); -allocate_all(Head, [], Cntrs, CT) -> - %% Note that space for the segments has been allocated already. - %% And one file for the segments... - {FileName, Fd} = temp_file(Head, ?FSCK_SEGMENT), - Addr = ?SEGADDR(?SEGARRSZ), - true = ets:insert(Cntrs, {?FSCK_SEGMENT, Addr, {FileName, Fd}, 0}), - NCT = ?VSET(tuple_size(CT), CT, [Addr | []]), - {Head, NCT}. - -temp_file(Head, N) -> - TmpName = lists:concat([Head#head.filename, '.', N]), - {ok, Fd} = dets_utils:open(TmpName, [raw, binary, write]), - {TmpName, Fd}. - -bin2term([<> | BTs], L) -> - bin2term(BTs, [{Slot, LogSize, BinTerm} | L]); -bin2term([], L) -> - lists:reverse(L). - -write_all_sizes(?DCT(D, CT), Cntrs) -> - ?DCT(D, write_sizes(1, tuple_size(CT), CT, Cntrs)). - -write_sizes(Sz, Sz, CT, Cntrs) -> - write_size(Sz, ?FSCK_SEGMENT, CT, Cntrs); -write_sizes(Sz, MaxSz, CT, Cntrs) -> - NCT = write_size(Sz, Sz, CT, Cntrs), - write_sizes(Sz+1, MaxSz, NCT, Cntrs). - -write_size(Sz, I, CT, Cntrs) -> - case ?VGET(Sz, CT) of - not_used -> - CT; - [Addr | L] -> - {FileName, Fd} = ets:lookup_element(Cntrs, I, 3), - case file:write(Fd, lists:reverse(L)) of - ok -> - ?VSET(Sz, CT, [Addr | []]); - Error -> - dets_utils:file_error(FileName, Error) - end - end. - -output_slots(E, [E1 | Es], Acc, Head, DCT) - when element(1, E) =:= element(1, E1) -> - output_slots(E1, Es, [E1 | Acc], Head, DCT); -output_slots(_E, [E | L], Acc, Head, DCT) -> - NDCT = output_slot(Acc, Head, DCT), - output_slots(E, L, [E], Head, NDCT); -output_slots(E, [], Acc, _Head, DCT) -> - {E, Acc, DCT}. - -output_slot([E], _Head, ?DCT(D, CT)) -> - ?DCT(D, output_slot([{foo, E}], 0, foo, CT)); -output_slot(Es0, Head, ?DCT(D, CT)) -> - Kp = Head#head.keypos, - Fun = fun({_Slot, _LSize, BinTerm} = E) -> - Key = element(Kp, binary_to_term(BinTerm)), - {Key, E} - end, - Es = lists:map(Fun, Es0), - NEs = case Head#head.type of - set -> - [{Key0,_} = E | L0] = lists:sort(Es), - choose_one(lists:sort(L0), Key0, [E]); - bag -> - lists:usort(Es); - duplicate_bag -> - lists:sort(Es) - end, - Dups = D + length(Es) - length(NEs), - ?DCT(Dups, output_slot(NEs, 0, foo, CT)). - -choose_one([{Key,_} | Es], Key, L) -> - choose_one(Es, Key, L); -choose_one([{Key,_} = E | Es], _Key, L) -> - choose_one(Es, Key, [E | L]); -choose_one([], _Key, L) -> - L. - -output_slot([E | Es], Next, _Slot, CT) -> - {_Key, {Slot, LSize, BinTerm}} = E, - Size = byte_size(BinTerm), - Size2 = ?POW(LSize-1), - Pad = <<0:(Size2-Size-?OHDSZ)/unit:8>>, - BinObject = [<>, BinTerm | Pad], - [Addr | L] = ?VGET(LSize, CT), - NCT = ?VSET(LSize, CT, [Addr+Size2 | [BinObject | L]]), - output_slot(Es, Addr, Slot, NCT); -output_slot([], Next, Slot, CT) -> - I = tuple_size(CT), - [Addr | L] = ?VGET(I, CT), - {Pos, _} = slot_position(Slot), - NoZeros = Pos - Addr, - BinObject = if - NoZeros > 100 -> - [dets_utils:make_zeros(NoZeros) | <>]; - true -> - <<0:NoZeros/unit:8,Next:32>> - end, - Size = NoZeros+4, - ?VSET(I, CT, [Addr+Size | [BinObject | L]]). - -%% Does not close Fd. -fsck_input(Head, Fd, Cntrs, _FileHeader) -> - %% The file is not compressed, so the object size cannot exceed - %% the filesize, for all objects. - MaxSz = case file:position(Fd, eof) of - {ok, Pos} -> - Pos; - _ -> - (1 bsl 32) - 1 - end, - State0 = fsck_read(?BASE, Fd, []), - fsck_input1(Head, State0, Fd, MaxSz, Cntrs). - -fsck_input1(Head, State, Fd, MaxSz, Cntrs) -> - fun(close) -> - ok; - (read) -> - case State of - done -> - end_of_input; - {done, L} -> - R = count_input(Cntrs, L, []), - {R, fsck_input1(Head, done, Fd, MaxSz, Cntrs)}; - {cont, L, Bin, Pos} -> - R = count_input(Cntrs, L, []), - FR = fsck_objs(Bin, Head#head.keypos, Head, []), - NewState = fsck_read(FR, Pos, Fd, MaxSz, Head), - {R, fsck_input1(Head, NewState, Fd, MaxSz, Cntrs)} - end - end. - -%% The ets table Cntrs is used for counting objects per size. -count_input(Cntrs, [[LogSz | B] | Ts], L) -> - count_object(Cntrs, LogSz), - count_input(Cntrs, Ts, [B | L]); -count_input(_Cntrs, [], L) -> - L. - -count_object(Cntrs, LogSz) -> - case catch ets:update_counter(Cntrs, LogSz, 1) of - N when is_integer(N) -> ok; - _Badarg -> true = ets:insert(Cntrs, {LogSz, 1}) - end. - -fsck_read(Pos, F, L) -> - case file:position(F, Pos) of - {ok, _} -> - read_more_bytes(<<>>, 0, Pos, F, L); - _Error -> - {done, L} - end. - -fsck_read({more, Bin, Sz, L}, Pos, F, MaxSz, Head) when Sz > MaxSz -> - FR = skip_bytes(Bin, ?BUMP, Head#head.keypos, Head, L), - fsck_read(FR, Pos, F, MaxSz, Head); -fsck_read({more, Bin, Sz, L}, Pos, F, _MaxSz, _Head) -> - read_more_bytes(Bin, Sz, Pos, F, L); -fsck_read({new, Skip, L}, Pos, F, _MaxSz, _Head) -> - NewPos = Pos + Skip, - fsck_read(NewPos, F, L). - -read_more_bytes(B, Min, Pos, F, L) -> - Max = if - Min < ?CHUNK_SIZE -> ?CHUNK_SIZE; - true -> Min - end, - case dets_utils:read_n(F, Max) of - eof -> - {done, L}; - Bin -> - NewPos = Pos + byte_size(Bin), - {cont, L, list_to_binary([B, Bin]), NewPos} - end. - -fsck_objs(Bin = <<_N:32, Sz:32, Status:32, Tail/binary>>, Kp, Head, L) -> - if - Status =:= ?ACTIVE -> - case Tail of - <> -> - case catch element(Kp, binary_to_term(BinTerm)) of - {'EXIT', _} -> - skip_bytes(Bin, ?BUMP, Kp, Head, L); - Key -> - LogSz = sz2pos(Sz+?OHDSZ), - Obj = make_object(Head, Key, LogSz, BinTerm), - NL = [[LogSz | Obj] | L], - Skip = ?POW(LogSz-1) - Sz - ?OHDSZ, - skip_bytes(Tail2, Skip, Kp, Head, NL) - end; - _ -> - {more, Bin, Sz, L} - end; - true -> - skip_bytes(Bin, ?BUMP, Kp, Head, L) - end; -fsck_objs(Bin, _Kp, _Head, L) -> - {more, Bin, 0, L}. - -%% Version 8 has to know about version 9. -make_object(Head, Key, _LogSz, BT) when Head#head.version =:= 9 -> - Slot = dets_v9:db_hash(Key, Head), - <>; -make_object(Head, Key, LogSz, BT) -> - Slot = db_hash(Key, Head), - <>. - -%% Inlined. -skip_bytes(Bin, Skip, Kp, Head, L) -> - case Bin of - <<_:Skip/binary, Tail/binary>> -> - fsck_objs(Tail, Kp, Head, L); - _ -> - {new, Skip - byte_size(Bin), L} - end. - -%% -> {NewHead, ok} | throw({Head, Error}) -do_perform_save(H) -> - FL = dets_utils:get_freelists(H), - B = term_to_binary(FL), - Size = byte_size(B), - ?DEBUGF("size of freelist = ~p~n", [Size]), - ?DEBUGF("head.m = ~p~n", [H#head.m]), - ?DEBUGF("head.no_objects = ~p~n", [H#head.no_objects]), - - {ok, Pos} = dets_utils:position(H, eof), - H1 = H#head{freelists_p = Pos}, - W1 = {?FREELIST_POS, <>}, - W2 = {Pos, [<<0:32, Size:32, ?FREE:32>>, B]}, - - W3 = {?D_POS, <<(H1#head.m):32, - (H1#head.next):32, - (H1#head.keypos):32, - (H1#head.no_objects):32, - (H1#head.n):32>>}, - {ClosedProperly, ClosedProperlyNeedCompacitng} = - case H1#head.hash_bif of - hash -> - {?CLOSED_PROPERLY2, ?CLOSED_PROPERLY2_NEED_COMPACTING}; - phash -> - {?CLOSED_PROPERLY_NEW_HASH, - ?CLOSED_PROPERLY_NEW_HASH_NEED_COMPACTING} - end, - W4 = - if - Size > 1000, Size > H1#head.no_objects -> - {?CLOSED_PROPERLY_POS, - <>}; - true -> - {?CLOSED_PROPERLY_POS, <>} - end, - W5 = {?FILE_FORMAT_VERSION_POS, <>}, - {H2, ok} = dets_utils:pwrite(H1, [W1,W2,W3,W4,W5]), - {ok, Pos2} = dets_utils:position(H2, eof), - ?DEBUGF("Writing file size ~p, eof at ~p~n", [Pos2+4, Pos2]), - dets_utils:pwrite(H2, [{Pos2, <<(Pos2 + 4):32>>}]). - -%% -> [term()] | throw({Head, Error}) -slot_objs(H, Slot) when Slot >= H#head.next -> - '$end_of_table'; -slot_objs(H, Slot) -> - {_Pos, Chain} = chain(H, Slot), - collect_chain(H, Chain). - -collect_chain(_H, 0) -> []; -collect_chain(H, Pos) -> - {Next, _Sz, Term} = prterm(H, Pos, ?ReadAhead), - [Term | collect_chain(H, Next)]. - -db_hash(Key, Head) -> - H = h(Key, Head#head.hash_bif), - Hash = H rem Head#head.m, - if - Hash < Head#head.n -> - H rem (Head#head.m2); % H rem (2 * m) - true -> - Hash - end. - -h(I, phash) -> erlang:phash(I, ?BIG) - 1; -h(I, HF) -> erlang:HF(I, ?BIG) - 1. %% stupid BIF has 1 counts. - -no_slots(_Head) -> - undefined. - -table_parameters(_Head) -> - undefined. - -%% Re-hashing a segment, starting with SlotStart. -%% -%% On the average, half of the objects of the chain are put into a new -%% chain. If the slot of the old chain is i, then the slot of the new -%% chain is i+m. -%% Note that the insertion of objects into the new chain is simplified -%% by the fact that the chains are not sorted on key, which means that -%% each moved object can be inserted first in the new chain. -%% (It is also a fact that the objects with the same key are not sorted.) -%% -%% -> {ok, Writes} | throw({Head, Error}) -re_hash(Head, SlotStart) -> - {SlotPos, _4} = slot_position(SlotStart), - {ok, Bin} = dets_utils:pread(Head, SlotPos, 4*?SEGSZ, 0), - {Read, Cs} = split_bin(SlotPos, Bin, [], []), - re_hash_read(Head, [], Read, Cs). - -split_bin(Pos, <>, R, Cs) -> - if - P =:= 0 -> - split_bin(Pos+4, B, R, Cs); - true -> - split_bin(Pos+4, B, [{P,?ReadAhead} | R], [[Pos] | Cs]) - end; -split_bin(_Pos, <<>>, R, Cs) -> - {R, Cs}. - -re_hash_read(Head, Cs, R, RCs) -> - {ok, Bins} = dets_utils:pread(R, Head), - re_hash_read(Head, R, RCs, Bins, Cs, [], []). - -re_hash_read(Head, [{Pos, Size} | Ps], [C | Cs], - [<> | Bins], - DoneCs, R, RCs) -> - case byte_size(Bin0) of - BinSz when BinSz >= Sz -> - case catch binary_to_term(Bin0) of - {'EXIT', _Error} -> - throw(dets_utils:corrupt_reason(Head, bad_object)); - Term -> - Key = element(Head#head.keypos, Term), - New = h(Key, Head#head.hash_bif) rem Head#head.m2, - NC = case New >= Head#head.m of - true -> [{Pos,New} | C]; - false -> [Pos | C] - end, - if - Next =:= 0 -> - NDoneCs = [NC | DoneCs], - re_hash_read(Head, Ps, Cs, Bins, NDoneCs, R, RCs); - true -> - NR = [{Next,?ReadAhead} | R], - NRCs = [NC | RCs], - re_hash_read(Head, Ps, Cs, Bins, DoneCs, NR, NRCs) - end - end; - BinSz when Size =:= BinSz+?OHDSZ -> - NR = [{Pos, Sz+?OHDSZ} | R], - re_hash_read(Head, Ps, Cs, Bins, DoneCs, NR, [C | RCs]); - _BinSz -> - throw({Head, {error, {premature_eof, Head#head.filename}}}) - end; -re_hash_read(Head, [], [], [], Cs, [], []) -> - re_hash_traverse_chains(Cs, Head, [], [], []); -re_hash_read(Head, [], [], [], Cs, R, RCs) -> - re_hash_read(Head, Cs, R, RCs). - -re_hash_traverse_chains([C | Cs], Head, Rs, Ns, Ws) -> - case re_hash_find_new(C, Rs, start, start) of - false -> - re_hash_traverse_chains(Cs, Head, Rs, Ns, Ws); - {NRs, FirstNew, LastNew} -> - LastInNew = case C of - [{_,_} | _] -> true; - _ -> false - end, - N = {FirstNew, LastNew, LastInNew}, - NWs = re_hash_link(C, start, start, start, Ws), - re_hash_traverse_chains(Cs, Head, NRs, [N | Ns], NWs) - end; -re_hash_traverse_chains([], Head, Rs, Ns, Ws) -> - {ok, Bins} = dets_utils:pread(Rs, Head), - {ok, insert_new(Rs, Bins, Ns, Ws)}. - -re_hash_find_new([{Pos,NewSlot} | C], R, start, start) -> - {SPos, _4} = slot_position(NewSlot), - re_hash_find_new(C, [{SPos,4} | R], Pos, Pos); -re_hash_find_new([{Pos,_SPos} | C], R, _FirstNew, LastNew) -> - re_hash_find_new(C, R, Pos, LastNew); -re_hash_find_new([_Pos | C], R, FirstNew, LastNew) -> - re_hash_find_new(C, R, FirstNew, LastNew); -re_hash_find_new([], _R, start, start) -> - false; -re_hash_find_new([], R, FirstNew, LastNew) -> - {R, FirstNew, LastNew}. - -re_hash_link([{Pos,_SPos} | C], LastOld, start, _LastInNew, Ws) -> - re_hash_link(C, LastOld, Pos, true, Ws); -re_hash_link([{Pos,_SPos} | C], LastOld, LastNew, false, Ws) -> - re_hash_link(C, LastOld, Pos, true, [{Pos,<>} | Ws]); -re_hash_link([{Pos,_SPos} | C], LastOld, _LastNew, LastInNew, Ws) -> - re_hash_link(C, LastOld, Pos, LastInNew, Ws); -re_hash_link([Pos | C], start, LastNew, true, Ws) -> - re_hash_link(C, Pos, LastNew, false, [{Pos,<<0:32>>} | Ws]); -re_hash_link([Pos | C], LastOld, LastNew, true, Ws) -> - re_hash_link(C, Pos, LastNew, false, [{Pos,<>} | Ws]); -re_hash_link([Pos | C], _LastOld, LastNew, LastInNew, Ws) -> - re_hash_link(C, Pos, LastNew, LastInNew, Ws); -re_hash_link([], _LastOld, _LastNew, _LastInNew, Ws) -> - Ws. - -insert_new([{NewSlotPos,_4} | Rs], [<> = PB | Bins], [N | Ns], Ws) -> - {FirstNew, LastNew, LastInNew} = N, - Ws1 = case P of - 0 when LastInNew -> - Ws; - 0 -> - [{LastNew, <<0:32>>} | Ws]; - _ -> - [{LastNew, PB} | Ws] - end, - NWs = [{NewSlotPos, <>} | Ws1], - insert_new(Rs, Bins, Ns, NWs); -insert_new([], [], [], Ws) -> - Ws. - -%% When writing the cache, a 'work list' is first created: -%% WorkList = [{Key, {Delete,Lookup,[Inserted]}}] -%% Delete = keep | delete -%% Lookup = skip | lookup -%% Inserted = {object(), No} -%% No = integer() -%% If No =< 0 then there will be -No instances of object() on the file -%% when the cache has been written. If No > 0 then No instances of -%% object() will be added to the file. -%% If Delete has the value 'delete', then all objects with the key Key -%% have been deleted. (This could be viewed as a shorthand for {Object,0} -%% for each object Object on the file not mentioned in some Inserted.) -%% If Lookup has the value 'lookup', all objects with the key Key will -%% be returned. -%% - -%% -> {NewHead, [LookedUpObject], pwrite_list()} | throw({NewHead, Error}) -write_cache(Head) -> - #head{cache = C, type = Type} = Head, - case dets_utils:is_empty_cache(C) of - true -> {Head, [], []}; - false -> - {NewC, _MaxInserts, PerKey} = dets_utils:reset_cache(C), - %% NoInsertedKeys is an upper limit on the number of new keys. - {WL, NoInsertedKeys} = make_wl(PerKey, Type), - Head1 = Head#head{cache = NewC}, - case may_grow(Head1, NoInsertedKeys, once) of - {Head2, ok} -> - eval_work_list(Head2, WL); - HeadError -> - throw(HeadError) - end - end. - -make_wl(PerKey, Type) -> - make_wl(PerKey, Type, [], 0). - -make_wl([{Key,L} | PerKey], Type, WL, Ins) -> - [Cs | I] = wl(L, Type), - make_wl(PerKey, Type, [{Key,Cs} | WL], Ins+I); -make_wl([], _Type, WL, Ins) -> - {WL, Ins}. - -wl(L, Type) -> - wl(L, Type, keep, skip, 0, []). - -wl([{_Seq, delete_key} | Cs], Type, _Del, Lookup, _I, _Objs) -> - wl(Cs, Type, delete, Lookup, 0, []); -wl([{_Seq, {delete_object, Object}} | Cs], Type, Del, Lookup, I, Objs) -> - NObjs = lists:keydelete(Object, 1, Objs), - wl(Cs, Type, Del, Lookup, I, [{Object,0} | NObjs]); -wl([{_Seq, {insert, Object}} | Cs], Type, _Del, Lookup, _I, _Objs) - when Type =:= set -> - wl(Cs, Type, delete, Lookup, 1, [{Object,-1}]); -wl([{_Seq, {insert, Object}} | Cs], Type, Del, Lookup, _I, Objs) -> - NObjs = - case lists:keyfind(Object, 1, Objs) of - {_, 0} -> - lists:keyreplace(Object, 1, Objs, {Object,-1}); - {_, _C} when Type =:= bag -> % C =:= 1; C =:= -1 - Objs; - {_, C} when C < 0 -> % when Type =:= duplicate_bag - lists:keyreplace(Object, 1, Objs, {Object,C-1}); - {_, C} -> % when C > 0, Type =:= duplicate_bag - lists:keyreplace(Object, 1, Objs, {Object,C+1}); - false when Del =:= delete -> - [{Object, -1} | Objs]; - false -> - [{Object, 1} | Objs] - end, - wl(Cs, Type, Del, Lookup, 1, NObjs); -wl([{_Seq, {lookup,_Pid}=Lookup} | Cs], Type, Del, _Lookup, I, Objs) -> - wl(Cs, Type, Del, Lookup, I, Objs); -wl([], _Type, Del, Lookup, I, Objs) -> - [{Del, Lookup, Objs} | I]. - -%% -> {NewHead, ok} | {NewHead, Error} -may_grow(Head, 0, once) -> - {Head, ok}; -may_grow(Head, _N, _How) when Head#head.fixed =/= false -> - {Head, ok}; -may_grow(#head{access = read}=Head, _N, _How) -> - {Head, ok}; -may_grow(Head, _N, _How) when Head#head.next >= ?MAXOBJS -> - {Head, ok}; -may_grow(Head, N, How) -> - Extra = erlang:min(2*?SEGSZ, Head#head.no_objects + N - Head#head.next), - case catch may_grow1(Head, Extra, How) of - {error, Reason} -> % alloc may throw error - {Head, {error, Reason}}; - Reply -> - Reply - end. - -may_grow1(Head, Extra, many_times) when Extra > ?SEGSZ -> - Reply = grow(Head, 1, undefined), - self() ! ?DETS_CALL(self(), may_grow), - Reply; -may_grow1(Head, Extra, _How) -> - grow(Head, Extra, undefined). - -%% -> {Head, ok} | throw({Head, Error}) -grow(Head, Extra, _SegZero) when Extra =< 0 -> - {Head, ok}; -grow(Head, Extra, undefined) -> - grow(Head, Extra, seg_zero()); -grow(Head, Extra, SegZero) -> - #head{n = N, next = Next, m = M} = Head, - SegNum = ?SLOT2SEG(Next), - {Head0, Ws1} = allocate_segment(Head, SegZero, SegNum), - {Head1, ok} = dets_utils:pwrite(Head0, Ws1), - %% If re_hash fails, segp_cache has been called, but it does not matter. - {ok, Ws2} = re_hash(Head1, N), - {Head2, ok} = dets_utils:pwrite(Head1, Ws2), - NewHead = - if - N + ?SEGSZ =:= M -> - Head2#head{n = 0, next = Next + ?SEGSZ, m = 2 * M, m2 = 4 * M}; - true -> - Head2#head{n = N + ?SEGSZ, next = Next + ?SEGSZ} - end, - grow(NewHead, Extra - ?SEGSZ, SegZero). - -seg_zero() -> - <<0:(4*?SEGSZ)/unit:8>>. - -find_object(Head, Object) -> - Key = element(Head#head.keypos, Object), - Slot = db_hash(Key, Head), - find_object(Head, Object, Slot). - -find_object(H, _Obj, Slot) when Slot >= H#head.next -> - false; -find_object(H, Obj, Slot) -> - {_Pos, Chain} = chain(H, Slot), - case catch find_obj(H, Obj, Chain) of - {ok, Pos} -> - {ok, Pos}; - _Else -> - false - end. - -find_obj(H, Obj, Pos) when Pos > 0 -> - {Next, _Sz, Term} = prterm(H, Pos, ?ReadAhead), - if - Term == Obj -> - {ok, Pos}; - true -> - find_obj(H, Obj, Next) - end. - -%% Given, a slot, return the {Pos, Chain} in the file where the -%% objects hashed to this slot reside. Pos is the position in the -%% file where the chain pointer is written and Chain is the position -%% in the file where the first object resides. -chain(Head, Slot) -> - Pos = ?SEGADDR(?SLOT2SEG(Slot)), - Segment = get_segp(Pos), - FinalPos = Segment + (4 * ?REM2(Slot, ?SEGSZ)), - {ok, <>} = dets_utils:pread(Head, FinalPos, 4, 0), - {FinalPos, Chain}. - -%%% -%%% Cache routines depending on the dets file format. -%%% - -%% -> {Head, [LookedUpObject], pwrite_list()} | throw({Head, Error}) -eval_work_list(Head, WorkLists) -> - SWLs = tag_with_slot(WorkLists, Head, []), - P1 = dets_utils:family(SWLs), - {PerSlot, SlotPositions} = remove_slot_tag(P1, [], []), - {ok, Bins} = dets_utils:pread(SlotPositions, Head), - first_object(PerSlot, SlotPositions, Bins, Head, [], [], [], []). - -tag_with_slot([{K,_} = WL | WLs], Head, L) -> - tag_with_slot(WLs, Head, [{db_hash(K, Head), WL} | L]); -tag_with_slot([], _Head, L) -> - L. - -remove_slot_tag([{S,SWLs} | SSWLs], Ls, SPs) -> - remove_slot_tag(SSWLs, [SWLs | Ls], [slot_position(S) | SPs]); -remove_slot_tag([], Ls, SPs) -> - {Ls, SPs}. - -%% The initial chain pointers and the first object in each chain are -%% read "in parallel", that is, with one call to file:pread/2 (two -%% calls altogether). The following chain objects are read one by -%% one. This is a compromise: if the chains are long and threads are -%% active, it would be faster to keep a state for each chain and read -%% the objects of the chains in parallel, but the overhead would be -%% quite substantial. - -first_object([WorkLists | SPs], [{P1,_4} | Ss], [<> | Bs], Head, - ObjsToRead, ToRead, Ls, LU) when P2 =:= 0 -> - L0 = [{old,P1}], - {L, NLU} = eval_slot(Head, ?ReadAhead, P2, WorkLists, L0, LU), - first_object(SPs, Ss, Bs, Head, ObjsToRead, ToRead, [L | Ls], NLU); -first_object([WorkLists | SPs], [{P1,_4} | Ss], [<> | Bs], Head, - ObjsToRead, ToRead, Ls, LU) -> - E = {P1,P2,WorkLists}, - first_object(SPs, Ss, Bs, Head, - [E | ObjsToRead], [{P2, ?ReadAhead} | ToRead], Ls, LU); -first_object([], [], [], Head, ObjsToRead, ToRead, Ls, LU) -> - {ok, Bins} = dets_utils:pread(ToRead, Head), - case catch eval_first(Bins, ObjsToRead, Head, Ls, LU) of - {ok, NLs, NLU} -> - case create_writes(NLs, Head, [], 0) of - {Head1, [], 0} -> - {Head1, NLU, []}; - {Head1, Ws, No} -> - {NewHead, Ws2} = update_no_objects(Head1, Ws, No), - {NewHead, NLU, Ws2} - end; - _Error -> - throw(dets_utils:corrupt_reason(Head, bad_object)) - end. - -%% Update no_objects on the file too, if the number of segments that -%% dets:fsck/6 use for estimate has changed. -update_no_objects(Head, Ws, 0) -> {Head, Ws}; -update_no_objects(Head, Ws, Delta) -> - No = Head#head.no_objects, - NewNo = No + Delta, - NWs = - if - NewNo > ?MAXOBJS -> - Ws; - ?SLOT2SEG(No) =:= ?SLOT2SEG(NewNo) -> - Ws; - true -> - [{?NO_OBJECTS_POS, <>} | Ws] - end, - {Head#head{no_objects = NewNo}, NWs}. - -eval_first([<> | Bins], - [SP | SPs], Head, Ls, LU) -> - {P1, P2, WLs} = SP, - L0 = [{old,P1}], - case byte_size(Bin) of - BinSz when BinSz >= Sz -> - Term = binary_to_term(Bin), - Key = element(Head#head.keypos, Term), - {L, NLU} = find_key(Head, P2, Next, Sz, Term, Key, WLs, L0, LU), - eval_first(Bins, SPs, Head, [L | Ls], NLU); - _BinSz -> - {L, NLU} = eval_slot(Head, Sz+?OHDSZ, P2, WLs, L0, LU), - eval_first(Bins, SPs, Head, [L | Ls], NLU) - end; -eval_first([], [], _Head, Ls, LU) -> - {ok, Ls, LU}. - -eval_slot(_Head, _TrySize, _Pos=0, [], L, LU) -> - {L, LU}; -eval_slot(Head, _TrySize, Pos=0, [WL | WLs], L, LU) -> - {_Key, {_Delete, LookUp, Objects}} = WL, - {NL, NLU} = end_of_key(Objects, LookUp, L, []), - eval_slot(Head, ?ReadAhead, Pos, WLs, NL, NLU++LU); -eval_slot(Head, TrySize, Pos, WLs, L, LU) -> - {NextPos, Size, Term} = prterm(Head, Pos, TrySize), - Key = element(Head#head.keypos, Term), - find_key(Head, Pos, NextPos, Size, Term, Key, WLs, L, LU). - -find_key(Head, Pos, NextPos, Size, Term, Key, WLs, L, LU) -> - case lists:keyfind(Key, 1, WLs) of - {_, {Delete, LookUp, Objects}} = WL -> - NWLs = lists:delete(WL, WLs), - {NewObjects, NL, LUK} = eval_object(Size, Term, Delete, LookUp, - Objects, Head, Pos, L, []), - eval_key(Key, Delete, LookUp, NewObjects, Head, NextPos, - NWLs, NL, LU, LUK); - false -> - L0 = [{old,Pos} | L], - eval_slot(Head, ?ReadAhead, NextPos, WLs, L0, LU) - end. - -eval_key(_Key, _Delete, Lookup, _Objects, Head, Pos, WLs, L, LU, LUK) - when Head#head.type =:= set -> - NLU = case Lookup of - {lookup, Pid} -> [{Pid,LUK} | LU]; - skip -> LU - end, - eval_slot(Head, ?ReadAhead, Pos, WLs, L, NLU); -eval_key(_Key, _Delete, LookUp, Objects, Head, Pos, WLs, L, LU, LUK) - when Pos =:= 0 -> - {NL, NLU} = end_of_key(Objects, LookUp, L, LUK), - eval_slot(Head, ?ReadAhead, Pos, WLs, NL, NLU++LU); -eval_key(Key, Delete, LookUp, Objects, Head, Pos, WLs, L, LU, LUK) -> - {NextPos, Size, Term} = prterm(Head, Pos, ?ReadAhead), - case element(Head#head.keypos, Term) of - Key -> - {NewObjects, NL, LUK1} = - eval_object(Size, Term, Delete, LookUp,Objects,Head,Pos,L,LUK), - eval_key(Key, Delete, LookUp, NewObjects, Head, NextPos, WLs, - NL, LU, LUK1); - Key2 -> - {L1, NLU} = end_of_key(Objects, LookUp, L, LUK), - find_key(Head, Pos, NextPos, Size, Term, Key2, WLs, L1, NLU++LU) - end. - -%% All objects in Objects have the key Key. -eval_object(Size, Term, Delete, LookUp, Objects, Head, Pos, L, LU) -> - Type = Head#head.type, - case lists:keyfind(Term, 1, Objects) of - {_Object, N} when N =:= 0 -> - L1 = [{delete,Pos,Size} | L], - {Objects, L1, LU}; - {_Object, N} when N < 0, Type =:= set -> - L1 = [{old,Pos} | L], - wl_lookup(LookUp, Objects, Term, L1, LU); - {Object, _N} when Type =:= bag -> % when N =:= 1; N =:= -1 - L1 = [{old,Pos} | L], - Objects1 = lists:keydelete(Object, 1, Objects), - wl_lookup(LookUp, Objects1, Term, L1, LU); - {Object, N} when N < 0, Type =:= duplicate_bag -> - L1 = [{old,Pos} | L], - Objects1 = lists:keyreplace(Object, 1, Objects, {Object,N+1}), - wl_lookup(LookUp, Objects1, Term, L1, LU); - {_Object, N} when N > 0, Type =:= duplicate_bag -> - L1 = [{old,Pos} | L], - wl_lookup(LookUp, Objects, Term, L1, LU); - false when Type =:= set, Delete =:= delete -> - case lists:keyfind(-1, 2, Objects) of - false -> % no inserted object, perhaps deleted objects - L1 = [{delete,Pos,Size} | L], - {[], L1, LU}; - {Term2, -1} -> - Bin2 = term_to_binary(Term2), - NSize = byte_size(Bin2), - Overwrite = - if - NSize =:= Size -> - true; - true -> - SizePos = sz2pos(Size+?OHDSZ), - NSizePos = sz2pos(NSize+?OHDSZ), - SizePos =:= NSizePos - end, - E = if - Overwrite -> - {overwrite,Bin2,Pos}; - true -> - {replace,Bin2,Pos,Size} - end, - wl_lookup(LookUp, [], Term2, [E | L], LU) - end; - false when Delete =:= delete -> - L1 = [{delete,Pos,Size} | L], - {Objects, L1, LU}; - false -> - L1 = [{old,Pos} | L], - wl_lookup(LookUp, Objects, Term, L1, LU) - end. - -%% Inlined. -wl_lookup({lookup,_}, Objects, Term, L, LU) -> - {Objects, L, [Term | LU]}; -wl_lookup(skip, Objects, _Term, L, LU) -> - {Objects, L, LU}. - -end_of_key([{Object,N0} | Objs], LookUp, L, LU) when N0 =/= 0 -> - N = abs(N0), - NL = [{insert,N,term_to_binary(Object)} | L], - NLU = case LookUp of - {lookup, _} -> - lists:duplicate(N, Object) ++ LU; - skip -> - LU - end, - end_of_key(Objs, LookUp, NL, NLU); -end_of_key([_ | Objects], LookUp, L, LU) -> - end_of_key(Objects, LookUp, L, LU); -end_of_key([], {lookup,Pid}, L, LU) -> - {L, [{Pid,LU}]}; -end_of_key([], skip, L, LU) -> - {L, LU}. - -create_writes([L | Ls], H, Ws, No) -> - {NH, NWs, NNo} = create_writes(L, H, Ws, No, 0, true), - create_writes(Ls, NH, NWs, NNo); -create_writes([], H, Ws, No) -> - {H, lists:reverse(Ws), No}. - -create_writes([{old,Pos} | L], H, Ws, No, _Next, true) -> - create_writes(L, H, Ws, No, Pos, true); -create_writes([{old,Pos} | L], H, Ws, No, Next, false) -> - W = {Pos, <>}, - create_writes(L, H, [W | Ws], No, Pos, true); -create_writes([{insert,N,Bin} | L], H, Ws, No, Next, _NextIsOld) -> - {NH, NWs, Pos} = create_inserts(N, H, Ws, Next, byte_size(Bin), Bin), - create_writes(L, NH, NWs, No+N, Pos, false); -create_writes([{overwrite,Bin,Pos} | L], H, Ws, No, Next, _) -> - Size = byte_size(Bin), - W = {Pos, [<>, Bin]}, - create_writes(L, H, [W | Ws], No, Pos, true); -create_writes([{replace,Bin,Pos,OSize} | L], H, Ws, No, Next, _) -> - Size = byte_size(Bin), - {H1, _} = dets_utils:free(H, Pos, OSize+?OHDSZ), - {NH, NewPos, _} = dets_utils:alloc(H1, ?OHDSZ + Size), - W1 = {NewPos, [<>, Bin]}, - NWs = if - Pos =:= NewPos -> - [W1 | Ws]; - true -> - W2 = {Pos+?STATUS_POS, <>}, - [W1,W2 | Ws] - end, - create_writes(L, NH, NWs, No, NewPos, false); -create_writes([{delete,Pos,Size} | L], H, Ws, No, Next, _) -> - {NH, _} = dets_utils:free(H, Pos, Size+?OHDSZ), - NWs = [{Pos+?STATUS_POS,<>} | Ws], - create_writes(L, NH, NWs, No-1, Next, false); -create_writes([], H, Ws, No, _Next, _NextIsOld) -> - {H, Ws, No}. - -create_inserts(0, H, Ws, Next, _Size, _Bin) -> - {H, Ws, Next}; -create_inserts(N, H, Ws, Next, Size, Bin) -> - {NH, Pos, _} = dets_utils:alloc(H, ?OHDSZ + Size), - W = {Pos, [<>, Bin]}, - create_inserts(N-1, NH, [W | Ws], Pos, Size, Bin). - -slot_position(S) -> - Pos = ?SEGADDR(?SLOT2SEG(S)), - Segment = get_segp(Pos), - FinalPos = Segment + (4 * ?REM2(S, ?SEGSZ)), - {FinalPos, 4}. - -%% Twice the size of a segment due to the bug in sz2pos/1. Inlined. -actual_seg_size() -> - ?POW(sz2pos(?SEGSZ*4)-1). - -segp_cache(Pos, Segment) -> - put(Pos, Segment). - -%% Inlined. -get_segp(Pos) -> - get(Pos). - -%% Bug: If Sz0 is equal to 2**k for some k, then 2**(k+1) bytes are -%% allocated (wasting 2**k bytes). -sz2pos(N) -> - 1 + dets_utils:log2(N+1). - -scan_objs(_Head, Bin, From, To, L, Ts, R, _Type) -> - scan_objs(Bin, From, To, L, Ts, R). - -scan_objs(Bin, From, To, L, Ts, -1) -> - {stop, Bin, From, To, L, Ts}; -scan_objs(B = <<_N:32, Sz:32, St:32, T/binary>>, From, To, L, Ts, R) -> - if - St =:= ?ACTIVE; - St =:= ?FREE -> % deleted after scanning started - case T of - <> -> - NTs = [BinTerm | Ts], - OSz = Sz + ?OHDSZ, - Skip = ?POW(sz2pos(OSz)-1) - OSz, - F2 = From + OSz, - NR = if - R < 0 -> - R + 1; - true -> - R + OSz + Skip - end, - scan_skip(T2, F2, To, Skip, L, NTs, NR); - _ -> - {more, From, To, L, Ts, R, Sz+?OHDSZ} - end; - true -> % a segment - scan_skip(B, From, To, actual_seg_size(), L, Ts, R) - end; -scan_objs(_B, From, To, L, Ts, R) -> - {more, From, To, L, Ts, R, 0}. - -scan_skip(Bin, From, To, Skip, L, Ts, R) when From + Skip < To -> - SkipPos = From + Skip, - case Bin of - <<_:Skip/binary, Tail/binary>> -> - scan_objs(Tail, SkipPos, To, L, Ts, R); - _ -> - {more, SkipPos, To, L, Ts, R, 0} - end; -scan_skip(Bin, From, To, Skip, L, Ts, R) when From + Skip =:= To -> - scan_next_allocated(Bin, From, To, L, Ts, R); -scan_skip(_Bin, From, _To, Skip, L, Ts, R) -> % when From + Skip > _To - From1 = From + Skip, - {more, From1, From1, L, Ts, R, 0}. - -scan_next_allocated(_Bin, _From, To, <<>>=L, Ts, R) -> - {more, To, To, L, Ts, R, 0}; -scan_next_allocated(Bin, From0, _To, <>, Ts, R) -> - Skip = From - From0, - scan_skip(Bin, From0, To, Skip, L, Ts, R). - -%% Read term from file at position Pos -prterm(Head, Pos, ReadAhead) -> - Res = dets_utils:pread(Head, Pos, ?OHDSZ, ReadAhead), - ?DEBUGF("file:pread(~tp, ~p, ?) -> ~p~n", [Head#head.filename, Pos, Res]), - {ok, <>} = Res, - ?DEBUGF("{Next, Sz} = ~p~n", [{Next, Sz}]), - Bin = case byte_size(Bin0) of - Actual when Actual >= Sz -> - Bin0; - _ -> - {ok, Bin1} = dets_utils:pread(Head, Pos + ?OHDSZ, Sz, 0), - Bin1 - end, - Term = binary_to_term(Bin), - {Next, Sz, Term}. - -%%%%%%%%%%%%%%%%% DEBUG functions %%%%%%%%%%%%%%%% - -file_info(FH) -> - #fileheader{closed_properly = CP, keypos = Kp, - m = M, next = Next, n = N, version = Version, - type = Type, no_objects = NoObjects} - = FH, - if - CP =:= 0 -> - {error, not_closed}; - FH#fileheader.cookie =/= ?MAGIC -> - {error, not_a_dets_file}; - FH#fileheader.version =/= ?FILE_FORMAT_VERSION -> - {error, bad_version}; - true -> - {ok, [{closed_properly,CP},{keypos,Kp},{m, M}, - {n,N},{next,Next},{no_objects,NoObjects}, - {type,Type},{version,Version}]} - end. - -v_segments(H) -> - v_segments(H, 0). - -v_segments(_H, ?SEGARRSZ) -> - done; -v_segments(H, SegNo) -> - Seg = dets_utils:read_4(H#head.fptr, ?SEGADDR(SegNo)), - if - Seg =:= 0 -> - done; - true -> - io:format("SEGMENT ~w ", [SegNo]), - io:format("At position ~w~n", [Seg]), - v_segment(H, SegNo, Seg, 0), - v_segments(H, SegNo+1) - end. - -v_segment(_H, _, _SegPos, ?SEGSZ) -> - done; -v_segment(H, SegNo, SegPos, SegSlot) -> - Slot = SegSlot + (SegNo * ?SEGSZ), - Chain = dets_utils:read_4(H#head.fptr, SegPos + (4 * SegSlot)), - if - Chain =:= 0 -> %% don't print empty chains - true; - true -> - io:format(" <~p>~p: [",[SegPos + (4 * SegSlot), Slot]), - print_chain(H, Chain) - end, - v_segment(H, SegNo, SegPos, SegSlot+1). - -print_chain(_H, 0) -> - io:format("] \n", []); -print_chain(H, Pos) -> - {ok, _} = file:position(H#head.fptr, Pos), - case rterm(H#head.fptr) of - {ok, 0, _Sz, Term} -> - io:format("<~p>~p] \n",[Pos, Term]); - {ok, Next, _Sz, Term} -> - io:format("<~p>~p, ", [Pos, Term]), - print_chain(H, Next); - Other -> - io:format("~nERROR ~p~n", [Other]) - end. - -%% Can't be used at the bucket level!!!! -%% Only when we go down a chain -rterm(F) -> - case catch rterm2(F) of - {'EXIT', Reason} -> %% truncated DAT file - dets_utils:vformat("** dets: Corrupt or truncated dets file~n", - []), - {error, Reason}; - Other -> - Other - end. - -rterm2(F) -> - {ok, <>} = file:read(F, ?OHDSZ), - {ok, Bin} = file:read(F, Sz), - Term = binary_to_term(Bin), - {ok, Next, Sz, Term}. - - diff --git a/lib/stdlib/src/dets_v9.erl b/lib/stdlib/src/dets_v9.erl index 6c406fc03a..3ab8f87ebf 100644 --- a/lib/stdlib/src/dets_v9.erl +++ b/lib/stdlib/src/dets_v9.erl @@ -24,8 +24,8 @@ -export([mark_dirty/1, read_file_header/2, check_file_header/2, do_perform_save/1, initiate_file/11, - prep_table_copy/9, init_freelist/2, fsck_input/4, - bulk_input/3, output_objs/4, bchunk_init/2, + prep_table_copy/9, init_freelist/1, fsck_input/4, + bulk_input/3, output_objs/3, bchunk_init/2, try_bchunk_header/2, compact_init/3, read_bchunks/2, write_cache/1, may_grow/3, find_object/2, slot_objs/2, scan_objs/8, db_hash/2, no_slots/1, table_parameters/1]). @@ -228,8 +228,8 @@ -define(CLOSED_PROPERLY_POS, 8). -define(D_POS, 20). -%%% Dets file versions up to 8 are handled in dets_v8. This module -%%% handles version 9, introduced in R8. +%%% This module handles Dets file format version 9, introduced in +%%% Erlang/OTP R8. %%% %%% Version 9(a) tables have 256 reserved bytes in the file header, %%% all initialized to zero. @@ -249,32 +249,32 @@ -define(OHDSZ, 8). % The size of the object header, in bytes. -define(STATUS_POS, 4). % Position of the status field. --define(OHDSZ_v8, 12). % The size of the version 8 object header. - %% The size of each object is a multiple of 16. %% BUMP is used when repairing files. -define(BUMP, 16). -%%% '$hash' is the value of HASH_PARMS in R8, '$hash2' is the value in R9. +%%% '$hash' is the value of HASH_PARMS in Erlang/OTP R8, '$hash2' is +%%% the value in Erlang/OTP R9. %%% %%% The fields of the ?HASH_PARMS records are the same, but having -%%% different tags makes bchunk_init on R8 nodes reject data from R9 -%%% nodes, and vice versa. This is overkill, and due to an oversight. -%%% What should have been done in R8 was to check the hash method, not -%%% only the type of the table and the key position. R8 nodes cannot -%%% handle the phash2 method. +%%% different tags makes bchunk_init on Erlang/OTP R8 nodes reject +%%% data from Erlang/OTP R9 nodes, and vice versa. This is overkill, +%%% and due to an oversight. What should have been done in Erlang/OTP +%%% R8 was to check the hash method, not only the type of the table +%%% and the key position. Erlang/OTP R8 nodes cannot handle the phash2 +%%% method. -define(HASH_PARMS, '$hash2'). -define(BCHUNK_FORMAT_VERSION, 1). -record(?HASH_PARMS, { - file_format_version, + file_format_version, bchunk_format_version, file, type, keypos, hash_method, n,m,next, min,max, no_objects,no_keys, - no_colls % [{LogSz,NoColls}], NoColls >= 0 + no_colls :: no_colls() }). -define(ACTUAL_SEG_SIZE, (?SEGSZ*4)). @@ -364,10 +364,8 @@ init_file(Fd, Tab, Fname, Type, Kp, MinSlots, MaxSlots, Ram, CacheSz, filename = Fname, name = Tab, cache = dets_utils:new_cache(CacheSz), - version = ?FILE_FORMAT_VERSION, bump = ?BUMP, - base = ?BASE, % to be overwritten - mod = ?MODULE + base = ?BASE % to be overwritten }, FreeListsPointer = 0, @@ -457,7 +455,7 @@ alloc_seg(Head, SegZero, SegNo, Part) -> {NewHead, InitSegment, [SegPointer]}. %% Read free lists (using a Buddy System) from file. -init_freelist(Head, true) -> +init_freelist(Head) -> Pos = Head#head.freelists_p, free_lists_from_file(Head, Pos). @@ -510,12 +508,10 @@ read_file_header(Fd, FileName) -> md5 = erlang:md5(MD5DigestedPart), trailer = FileSize + FlBase, eof = EOF, - n = N, - mod = ?MODULE}, + n = N}, {ok, Fd, FH}. -%% -> {ok, head(), ExtraInfo} | {error, Reason} (Reason lacking file name) -%% ExtraInfo = true +%% -> {ok, head()} | {error, Reason} (Reason lacking file name) check_file_header(FH, Fd) -> HashBif = code_to_hash_method(FH#fileheader.hash_method), Test = @@ -534,14 +530,14 @@ check_file_header(FH, Fd) -> HashBif =:= undefined -> {error, bad_hash_bif}; FH#fileheader.closed_properly =:= ?CLOSED_PROPERLY -> - {ok, true}; + ok; FH#fileheader.closed_properly =:= ?NOT_PROPERLY_CLOSED -> {error, not_closed}; true -> {error, not_a_dets_file} end, case Test of - {ok, ExtraInfo} -> + ok -> MaxObjSize = max_objsize(FH#fileheader.no_colls), H = #head{ m = FH#fileheader.m, @@ -563,11 +559,9 @@ check_file_header(FH, Fd) -> min_no_slots = FH#fileheader.min_no_slots, max_no_slots = FH#fileheader.max_no_slots, no_collections = FH#fileheader.no_colls, - version = ?FILE_FORMAT_VERSION, - mod = ?MODULE, bump = ?BUMP, base = FH#fileheader.fl_base}, - {ok, H, ExtraInfo}; + {ok, H}; Error -> Error end. @@ -621,7 +615,7 @@ no_segs(NoSlots) -> %%% %%% bulk_input/3. Initialization, the general case (any stream of objects). -%%% output_objs/4. Initialization (general case) and repair. +%%% output_objs/3. Initialization (general case) and repair. %%% bchunk_init/2. Initialization using bchunk. bulk_input(Head, InitFun, _Cntrs) -> @@ -678,7 +672,7 @@ bulk_objects([], _Head, Kp, Seq, L) when is_integer(Kp), is_integer(Seq) -> -define(OBJ_COUNTER, 2). -define(KEY_COUNTER, 3). -output_objs(OldV, Head, SlotNums, Cntrs) when OldV =< 9 -> +output_objs(Head, SlotNums, Cntrs) -> fun(close) -> %% Make sure that the segments are initialized in case %% init_table has been called. @@ -686,31 +680,31 @@ output_objs(OldV, Head, SlotNums, Cntrs) when OldV =< 9 -> Acc = [], % This is the only way Acc can be empty. true = ets:insert(Cntrs, {?FSCK_SEGMENT,0,[],0}), true = ets:insert(Cntrs, {?COUNTERS, 0, 0}), - Fun = output_objs2(foo, Acc, OldV, Head, Cache, Cntrs, + Fun = output_objs2(foo, Acc, Head, Cache, Cntrs, SlotNums, bar), Fun(close); ([]) -> - output_objs(OldV, Head, SlotNums, Cntrs); + output_objs(Head, SlotNums, Cntrs); (L) -> %% Information about number of objects per size is not %% relevant for version 9. It is the number of collections %% that matters. true = ets:delete_all_objects(Cntrs), true = ets:insert(Cntrs, {?COUNTERS, 0, 0}), - Es = bin2term(L, OldV, Head#head.keypos), + Es = bin2term(L, Head#head.keypos), %% The cache is a tuple indexed by the (log) size. An element %% is [BinaryObject]. Cache = ?VEMPTY, {NE, NAcc, NCache} = output_slots(Es, Head, Cache, Cntrs, 0, 0), - output_objs2(NE, NAcc, OldV, Head, NCache, Cntrs, SlotNums, 1) + output_objs2(NE, NAcc, Head, NCache, Cntrs, SlotNums, 1) end. -output_objs2(E, Acc, OldV, Head, Cache, SizeT, SlotNums, 0) -> +output_objs2(E, Acc, Head, Cache, SizeT, SlotNums, 0) -> NCache = write_all_sizes(Cache, SizeT, Head, more), %% Number of handled file_sorter chunks before writing: Max = erlang:max(1, erlang:min(tuple_size(NCache), 10)), - output_objs2(E, Acc, OldV, Head, NCache, SizeT, SlotNums, Max); -output_objs2(E, Acc, OldV, Head, Cache, SizeT, SlotNums, ChunkI) -> + output_objs2(E, Acc, Head, NCache, SizeT, SlotNums, Max); +output_objs2(E, Acc, Head, Cache, SizeT, SlotNums, ChunkI) -> fun(close) -> {_, [], Cache1} = if @@ -747,11 +741,10 @@ output_objs2(E, Acc, OldV, Head, Cache, SizeT, SlotNums, ChunkI) -> end end; (L) -> - Es = bin2term(L, OldV, Head#head.keypos), + Es = bin2term(L, Head#head.keypos), {NE, NAcc, NCache} = output_slots(E, Es, Acc, Head, Cache, SizeT, 0, 0), - output_objs2(NE, NAcc, OldV, Head, NCache, SizeT, SlotNums, - ChunkI-1) + output_objs2(NE, NAcc, Head, NCache, SizeT, SlotNums, ChunkI-1) end. %%% Compaction. @@ -1245,10 +1238,8 @@ allocate_all(Head, [{LSize,_,Data,NoCollections} | DTL], L) -> E = {LSize,Addr,Data,NoCollections}, allocate_all(NewHead, DTL, [E | L]). -bin2term(Bin, 9, Kp) -> - bin2term1(Bin, Kp, []); -bin2term(Bin, 8, Kp) -> - bin2term_v8(Bin, Kp, []). +bin2term(Bin, Kp) -> + bin2term1(Bin, Kp, []). bin2term1([<> | BTs], Kp, L) -> Term = binary_to_term(BinTerm), @@ -1257,13 +1248,6 @@ bin2term1([<> | BTs], Kp, L) -> bin2term1([], _Kp, L) -> lists:reverse(L). -bin2term_v8([<> | BTs], Kp, L) -> - Term = binary_to_term(BinTerm), - Key = element(Kp, Term), - bin2term_v8(BTs, Kp, [{Slot, Key, foo, Term, BinTerm} | L]); -bin2term_v8([], _Kp, L) -> - lists:reverse(L). - write_all_sizes({}=Cache, _SizeT, _Head, _More) -> Cache; write_all_sizes(Cache, SizeT, Head, More) -> @@ -1461,7 +1445,7 @@ temp_file(Head, SizeT, N) -> %% Does not close Fd. fsck_input(Head, Fd, Cntrs, FileHeader) -> MaxSz0 = case FileHeader#fileheader.has_md5 of - true when is_integer(FileHeader#fileheader.no_colls) -> + true when is_list(FileHeader#fileheader.no_colls) -> ?POW(max_objsize(FileHeader#fileheader.no_colls)); _ -> %% The file is not compressed, so the bucket size @@ -1485,10 +1469,10 @@ fsck_input(Head, State, Fd, MaxSz, Cntrs) -> done -> end_of_input; {done, L, _Seq} -> - R = count_input(Head, Cntrs, L), + R = count_input(L), {R, fsck_input(Head, done, Fd, MaxSz, Cntrs)}; {cont, L, Bin, Pos, Seq} -> - R = count_input(Head, Cntrs, L), + R = count_input(L), FR = fsck_objs(Bin, Head#head.keypos, Head, [], Seq), NewState = fsck_read(FR, Pos, Fd, MaxSz, Head), {R, fsck_input(Head, NewState, Fd, MaxSz, Cntrs)} @@ -1496,20 +1480,9 @@ fsck_input(Head, State, Fd, MaxSz, Cntrs) -> end. %% The ets table Cntrs is used for counting objects per size. -count_input(Head, Cntrs, L) when Head#head.version =:= 8 -> - count_input1(Cntrs, L, []); -count_input(_Head, _Cntrs, L) -> +count_input(L) -> lists:reverse(L). -count_input1(Cntrs, [[LogSz | B] | Ts], L) -> - case catch ets:update_counter(Cntrs, LogSz, 1) of - N when is_integer(N) -> ok; - _Badarg -> true = ets:insert(Cntrs, {LogSz, 1}) - end, - count_input1(Cntrs, Ts, [B | L]); -count_input1(_Cntrs, [], L) -> - L. - fsck_read(Pos, F, L, Seq) -> case file:position(F, Pos) of {ok, _} -> @@ -1564,11 +1537,6 @@ fsck_objs(Bin = <>, Kp, Head, L, Seq) -> fsck_objs(Bin, _Kp, _Head, L, Seq) -> {more, Bin, 0, L, Seq}. -make_objects([{K,BT}|Os], Seq, Kp, Head, L) when Head#head.version =:= 8 -> - LogSz = dets_v8:sz2pos(byte_size(BT)+?OHDSZ_v8), - Slot = dets_v8:db_hash(K, Head), - Obj = [LogSz | <>], - make_objects(Os, Seq, Kp, Head, [Obj | L]); make_objects([{K,BT} | Os], Seq, Kp, Head, L) -> Obj = make_object(Head, K, Seq, BT), make_objects(Os, Seq+1, Kp, Head, [Obj | L]); @@ -1607,7 +1575,7 @@ do_perform_save(H) -> FileHeader = file_header(H1, FreeListsPointer, ?CLOSED_PROPERLY), case dets_utils:debug_mode() of true -> - TmpHead0 = init_freelist(H1#head{fixed = false}, true), + TmpHead0 = init_freelist(H1#head{fixed = false}), TmpHead = TmpHead0#head{base = H1#head.base}, case catch dets_utils:all_allocated_as_list(TmpHead) @@ -1794,7 +1762,7 @@ table_parameters(Head) -> (E, A) -> [E | A] end, [], CL), NoColls = lists:reverse(NoColls0), - #?HASH_PARMS{file_format_version = Head#head.version, + #?HASH_PARMS{file_format_version = ?FILE_FORMAT_VERSION, bchunk_format_version = ?BCHUNK_FORMAT_VERSION, file = filename:basename(Head#head.filename), type = Head#head.type, diff --git a/lib/stdlib/src/stdlib.app.src b/lib/stdlib/src/stdlib.app.src index 8cf46482dd..82ab484ea6 100644 --- a/lib/stdlib/src/stdlib.app.src +++ b/lib/stdlib/src/stdlib.app.src @@ -31,7 +31,6 @@ dets_server, dets_sup, dets_utils, - dets_v8, dets_v9, dict, digraph, diff --git a/lib/stdlib/test/dets_SUITE.erl b/lib/stdlib/test/dets_SUITE.erl index 8948f496c4..aa31fdde5a 100644 --- a/lib/stdlib/test/dets_SUITE.erl +++ b/lib/stdlib/test/dets_SUITE.erl @@ -35,26 +35,18 @@ -endif. -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, - init_per_group/2,end_per_group/2, - newly_started/1, basic_v8/1, basic_v9/1, - open_v8/1, open_v9/1, sets_v8/1, sets_v9/1, bags_v8/1, - bags_v9/1, duplicate_bags_v8/1, duplicate_bags_v9/1, - access_v8/1, access_v9/1, dirty_mark/1, dirty_mark2/1, - bag_next_v8/1, bag_next_v9/1, oldbugs_v8/1, oldbugs_v9/1, - unsafe_assumptions/1, truncated_segment_array_v8/1, - truncated_segment_array_v9/1, open_file_v8/1, open_file_v9/1, - init_table_v8/1, init_table_v9/1, repair_v8/1, repair_v9/1, - hash_v8b_v8c/1, phash/1, fold_v8/1, fold_v9/1, fixtable_v8/1, - fixtable_v9/1, match_v8/1, match_v9/1, select_v8/1, - select_v9/1, update_counter/1, badarg/1, cache_sets_v8/1, - cache_sets_v9/1, cache_bags_v8/1, cache_bags_v9/1, - cache_duplicate_bags_v8/1, cache_duplicate_bags_v9/1, + init_per_group/2,end_per_group/2, newly_started/1, basic/1, + open/1, sets/1, bags/1, duplicate_bags/1, access/1, dirty_mark/1, + dirty_mark2/1, bag_next/1, oldbugs/1, + truncated_segment_array/1, open_file/1, init_table/1, repair/1, + phash/1, fold/1, fixtable/1, match/1, select/1, update_counter/1, + badarg/1, cache_sets/1, cache_bags/1, cache_duplicate_bags/1, otp_4208/1, otp_4989/1, many_clients/1, otp_4906/1, otp_5402/1, simultaneous_open/1, insert_new/1, repair_continuation/1, otp_5487/1, otp_6206/1, otp_6359/1, otp_4738/1, otp_7146/1, otp_8070/1, otp_8856/1, otp_8898/1, otp_8899/1, otp_8903/1, otp_8923/1, otp_9282/1, otp_11245/1, otp_11709/1, otp_13229/1, - otp_13260/1]). + otp_13260/1, otp_13830/1]). -export([dets_dirty_loop/0]). @@ -73,8 +65,7 @@ -define(DETS_SERVER, dets). -%% HEADSZ taken from dets_v8.erl and dets_v9.erl. --define(HEADSZ_v8, 40). +%% HEADSZ taken from dets_v9.erl. -define(HEADSZ_v9, (56+28*4+16)). -define(NO_KEYS_POS_v9, 36). -define(CLOSED_PROPERLY_POS, 8). @@ -94,24 +85,16 @@ suite() -> all() -> [ - basic_v8, basic_v9, open_v8, open_v9, sets_v8, sets_v9, - bags_v8, bags_v9, duplicate_bags_v8, duplicate_bags_v9, - newly_started, open_file_v8, open_file_v9, - init_table_v8, init_table_v9, repair_v8, repair_v9, - access_v8, access_v9, oldbugs_v8, oldbugs_v9, - unsafe_assumptions, truncated_segment_array_v8, - truncated_segment_array_v9, dirty_mark, dirty_mark2, - bag_next_v8, bag_next_v9, hash_v8b_v8c, phash, fold_v8, - fold_v9, fixtable_v8, fixtable_v9, match_v8, match_v9, - select_v8, select_v9, update_counter, badarg, - cache_sets_v8, cache_sets_v9, cache_bags_v8, - cache_bags_v9, cache_duplicate_bags_v8, - cache_duplicate_bags_v9, otp_4208, otp_4989, + basic, open, sets, bags, duplicate_bags, newly_started, open_file, + init_table, repair, access, oldbugs, + truncated_segment_array, dirty_mark, dirty_mark2, bag_next, + phash, fold, fixtable, match, select, update_counter, badarg, + cache_sets, cache_bags, cache_duplicate_bags, otp_4208, otp_4989, many_clients, otp_4906, otp_5402, simultaneous_open, insert_new, repair_continuation, otp_5487, otp_6206, otp_6359, otp_4738, otp_7146, otp_8070, otp_8856, otp_8898, otp_8899, otp_8903, otp_8923, otp_9282, otp_11245, otp_11709, - otp_13229, otp_13260 + otp_13229, otp_13260, otp_13830 ]. groups() -> @@ -137,20 +120,12 @@ newly_started(Config) when is_list(Config) -> test_server:stop_node(Node), ok. -%% Basic test case. -basic_v8(Config) when is_list(Config) -> - basic(Config, 8). - -%% Basic test case. -basic_v9(Config) when is_list(Config) -> - basic(Config, 9). - -basic(Config, Version) -> +basic(Config) when is_list(Config) -> Tab = dets_basic_test, FName = filename(Tab, Config), P0 = pps(), - {ok, _} = dets:open_file(Tab,[{file, FName},{version,Version}]), + {ok, _} = dets:open_file(Tab,[{file, FName}]), ok = dets:insert(Tab,{mazda,japan}), ok = dets:insert(Tab,{toyota,japan}), ok = dets:insert(Tab,{suzuki,japan}), @@ -174,13 +149,7 @@ basic(Config, Version) -> ok. -open_v8(Config) when is_list(Config) -> - open(Config, 8). - -open_v9(Config) when is_list(Config) -> - open(Config, 9). - -open(Config, Version) -> +open(Config) when is_list(Config) -> %% Running this test twice means that the Dets server is restarted %% twice. dets_sup specifies a maximum of 4 restarts in an hour. %% If this becomes a problem, one should consider running this @@ -194,14 +163,14 @@ open(Config, Version) -> Data = make_data(1), P0 = pps(), - Tabs = open_files(1, All, Version), + Tabs = open_files(1, All), initialize(Tabs, Data), check(Tabs, Data), foreach(fun(Tab) -> ok = dets:close(Tab) end, Tabs), %% Now reopen the files ?format("Reopening closed files \n", []), - Tabs = open_files(1, All, Version), + Tabs = open_files(1, All), ?format("Checking contents of reopened files \n", []), check(Tabs, Data), %% crash the dets server @@ -216,7 +185,7 @@ open(Config, Version) -> %% Now reopen the files again ?format("Reopening crashed files \n", []), - open_files(1, All, Version), + open_files(1, All), ?format("Checking contents of repaired files \n", []), check(Tabs, Data), @@ -266,20 +235,13 @@ bad(_Tab, _Item) -> exit(badtab). %% Perform traversal and match testing on set type dets tables. -sets_v8(Config) when is_list(Config) -> - sets(Config, 8). - -%% Perform traversal and match testing on set type dets tables. -sets_v9(Config) when is_list(Config) -> - sets(Config, 9). - -sets(Config, Version) -> +sets(Config) when is_list(Config) -> {Sets, _, _} = args(Config), Data = make_data(1), delete_files(Sets), P0 = pps(), - Tabs = open_files(1, Sets, Version), + Tabs = open_files(1, Sets), Bigger = [{17,q,w,w}, {48,q,w,w,w,w,w,w}], % 48 requires a bigger buddy initialize(Tabs, Data++Bigger++Data), % overwrite Len = length(Data), @@ -302,19 +264,12 @@ sets(Config, Version) -> ok. %% Perform traversal and match testing on bag type dets tables. -bags_v8(Config) when is_list(Config) -> - bags(Config, 8). - -%% Perform traversal and match testing on bag type dets tables. -bags_v9(Config) when is_list(Config) -> - bags(Config, 9). - -bags(Config, Version) -> +bags(Config) when is_list(Config) -> {_, Bags, _} = args(Config), Data = make_data(1, bag), %% gives twice as many objects delete_files(Bags), P0 = pps(), - Tabs = open_files(1, Bags, Version), + Tabs = open_files(1, Bags), initialize(Tabs, Data++Data), Len = length(Data), foreach(fun(Tab) -> trav_test(Data, Len, Tab) end, Tabs), @@ -336,19 +291,12 @@ bags(Config, Version) -> %% Perform traversal and match testing on duplicate_bag type dets tables. -duplicate_bags_v8(Config) when is_list(Config) -> - duplicate_bags(Config, 8). - -%% Perform traversal and match testing on duplicate_bag type dets tables. -duplicate_bags_v9(Config) when is_list(Config) -> - duplicate_bags(Config, 9). - -duplicate_bags(Config, Version) when is_list(Config) -> +duplicate_bags(Config) when is_list(Config) -> {_, _, Dups} = args(Config), Data = make_data(1, duplicate_bag), %% gives twice as many objects delete_files(Dups), P0 = pps(), - Tabs = open_files(1, Dups, Version), + Tabs = open_files(1, Dups), initialize(Tabs, Data), Len = length(Data), foreach(fun(Tab) -> trav_test(Data, Len, Tab) end, Tabs), @@ -369,13 +317,7 @@ duplicate_bags(Config, Version) when is_list(Config) -> ok. -access_v8(Config) when is_list(Config) -> - access(Config, 8). - -access_v9(Config) when is_list(Config) -> - access(Config, 9). - -access(Config, Version) -> +access(Config) when is_list(Config) -> Args_acc = [[{ram_file, true}, {access, read}], [{access, read}]], Args = [[{ram_file, true}], @@ -388,9 +330,9 @@ access(Config, Version) -> P0 = pps(), {error, {file_error,_,enoent}} = dets:open_file('1', hd(Args_acc_1)), - Tabs = open_files(1, Args_1, Version), + Tabs = open_files(1, Args_1), close_all(Tabs), - Tabs = open_files(1, Args_acc_1, Version), + Tabs = open_files(1, Args_acc_1), foreach(fun(Tab) -> {error, {access_mode,_}} = dets:insert(Tab, {1,2}), @@ -522,16 +464,12 @@ dets_dirty_loop() -> %% Check that bags and next work as expected. -bag_next_v8(Config) when is_list(Config) -> - bag_next(Config, 8). - -%% Check that bags and next work as expected. -bag_next_v9(Config) when is_list(Config) -> +bag_next(Config) when is_list(Config) -> Tab = dets_bag_next_test, FName = filename(Tab, Config), %% first and next crash upon error - dets:open_file(Tab,[{file, FName}, {type, bag},{version,9}]), + dets:open_file(Tab,[{file, FName}, {type, bag}]), ok = dets:insert(Tab, [{1,1},{2,2},{3,3},{4,4}]), FirstKey = dets:first(Tab), NextKey = dets:next(Tab, FirstKey), @@ -548,13 +486,8 @@ bag_next_v9(Config) when is_list(Config) -> dets:close(Tab), file:delete(FName), - bag_next(Config, 9). - -bag_next(Config, Version) -> - Tab = dets_bag_next_test, - FName = filename(Tab, Config), P0 = pps(), - dets:open_file(Tab,[{file, FName}, {type, bag},{version,Version}]), + dets:open_file(Tab,[{file, FName}, {type, bag}]), dets:insert(Tab,{698,hopp}), dets:insert(Tab,{186,hopp}), dets:insert(Tab,{hej,hopp}), @@ -578,17 +511,10 @@ bag_next(Config, Version) -> check_pps(P0), ok. -oldbugs_v8(Config) when is_list(Config) -> - oldbugs(Config, 8). - -oldbugs_v9(Config) when is_list(Config) -> - oldbugs(Config, 9). - -oldbugs(Config, Version) -> +oldbugs(Config) when is_list(Config) -> FName = filename(dets_suite_oldbugs_test, Config), P0 = pps(), - {ok, ob} = dets:open_file(ob, [{version, Version}, - {type, bag}, {file, FName}]), + {ok, ob} = dets:open_file(ob, [{type, bag}, {file, FName}]), ok = dets:insert(ob, {1, 2}), ok = dets:insert(ob, {1,3}), ok = dets:insert(ob, {1, 2}), @@ -598,56 +524,19 @@ oldbugs(Config, Version) -> check_pps(P0), ok. -%% Test that shrinking an object and then expanding it works. -unsafe_assumptions(Config) when is_list(Config) -> - FName = filename(dets_suite_unsafe_assumptions_test, Config), - file:delete(FName), - P0 = pps(), - {ok, a} = dets:open_file(a, [{version,8},{file, FName}]), - O0 = {2,false}, - O1 = {1, false}, - O2 = {1, true}, - O3 = {1, duplicate(20,false)}, - O4 = {1, duplicate(25,false)}, % same 2-log as O3 - ok = dets:insert(a, O1), - ok = dets:insert(a, O0), - true = [O1,O0] =:= sort(get_all_objects(a)), - true = [O1,O0] =:= sort(get_all_objects_fast(a)), - ok = dets:insert(a, O2), - true = [O2,O0] =:= sort(get_all_objects(a)), - true = [O2,O0] =:= sort(get_all_objects_fast(a)), - ok = dets:insert(a, O3), - true = [O3,O0] =:= sort(get_all_objects(a)), - true = [O3,O0] =:= sort(get_all_objects_fast(a)), - ok = dets:insert(a, O4), - true = [O4,O0] =:= sort(get_all_objects(a)), - true = [O4,O0] =:= sort(get_all_objects_fast(a)), - ok = dets:close(a), - file:delete(FName), - check_pps(P0), - ok. - -%% Test that a file where the segment array has been truncated -%% is possible to repair. -truncated_segment_array_v8(Config) when is_list(Config) -> - trunc_seg_array(Config, 8). - %% Test that a file where the segment array has been truncated %% is possible to repair. -truncated_segment_array_v9(Config) when is_list(Config) -> - trunc_seg_array(Config, 9). - -trunc_seg_array(Config, V) -> +truncated_segment_array(Config) when is_list(Config) -> TabRef = dets_suite_truncated_segment_array_test, Fname = filename(TabRef, Config), %% Create file that needs to be repaired file:delete(Fname), P0 = pps(), - {ok, TabRef} = dets:open_file(TabRef, [{file, Fname},{version,V}]), + {ok, TabRef} = dets:open_file(TabRef, [{file, Fname}]), ok = dets:close(TabRef), %% Truncate the file - HeadSize = headsz(V), + HeadSize = headsz(), truncate(Fname, HeadSize + 10), %% Open the truncated file @@ -660,19 +549,13 @@ trunc_seg_array(Config, V) -> ok. %% Test open_file/1. -open_file_v8(Config) when is_list(Config) -> - open_1(Config, 8). - -%% Test open_file/1. -open_file_v9(Config) when is_list(Config) -> +open_file(Config) when is_list(Config) -> T = open_v9, Fname = filename(T, Config), - {ok, _} = dets:open_file(T, [{file,Fname},{version,9}]), - 9 = dets:info(T, version), + {ok, _} = dets:open_file(T, [{file,Fname}]), + 9 = dets:info(T, version), % Backwards compatibility. true = [self()] =:= dets:info(T, users), - {ok, _} = dets:open_file(T, [{file,Fname},{version,9}]), - {error,incompatible_arguments} = - dets:open_file(T, [{file,Fname},{version,8}]), + {ok, _} = dets:open_file(T, [{file,Fname}]), true = [self(),self()] =:= dets:info(T, users), ok = dets:close(T), true = [self()] =:= dets:info(T, users), @@ -680,9 +563,9 @@ open_file_v9(Config) when is_list(Config) -> undefined = ets:info(T, users), file:delete(Fname), - open_1(Config, 9). + open_1(Config). -open_1(Config, V) -> +open_1(Config) -> TabRef = open_file_1_test, Fname = filename(TabRef, Config), file:delete(Fname), @@ -694,8 +577,8 @@ open_1(Config, V) -> {error,{not_a_dets_file,Fname}} = dets:open_file(Fname), file:delete(Fname), - HeadSize = headsz(V), - {ok, TabRef} = dets:open_file(TabRef, [{file, Fname},{version,V}]), + HeadSize = headsz(), + {ok, TabRef} = dets:open_file(TabRef, [{file, Fname}]), ok = dets:close(TabRef), truncate(Fname, HeadSize + 10), true = dets:is_dets_file(Fname), @@ -705,7 +588,7 @@ open_1(Config, V) -> file:delete(Fname), %% truncated file header, invalid type - {ok, TabRef} = dets:open_file(TabRef, [{file,Fname},{version,V}]), + {ok, TabRef} = dets:open_file(TabRef, [{file,Fname}]), ok = ins(TabRef, 3000), ok = dets:close(TabRef), TypePos = 12, @@ -714,7 +597,7 @@ open_1(Config, V) -> truncate(Fname, HeadSize - 10), {error,{not_a_dets_file,Fname}} = dets:open_file(Fname), {error,{not_a_dets_file,Fname}} = - dets:open_file(TabRef, [{file,Fname},{version,V}]), + dets:open_file(TabRef, [{file,Fname}]), file:delete(Fname), {error,{file_error,{foo,bar},_}} = dets:is_dets_file({foo,bar}), @@ -722,35 +605,30 @@ open_1(Config, V) -> ok. %% Test initialize_table/2 and from_ets/2. -init_table_v8(Config) when is_list(Config) -> - init_table(Config, 8). - -%% Test initialize_table/2 and from_ets/2. -init_table_v9(Config) when is_list(Config) -> +init_table(Config) when is_list(Config) -> %% Objects are returned in "time order". T = init_table_v9, Fname = filename(T, Config), file:delete(Fname), L = [{1,a},{2,b},{1,c},{2,c},{1,c},{2,a},{1,b}], Input = init([L]), - {ok, _} = dets:open_file(T, [{file,Fname},{version,9}, - {type,duplicate_bag}]), + {ok, _} = dets:open_file(T, [{file,Fname},{type,duplicate_bag}]), ok = dets:init_table(T, Input), [{1,a},{1,c},{1,c},{1,b}] = dets:lookup(T, 1), [{2,b},{2,c},{2,a}] = dets:lookup(T, 2), ok = dets:close(T), file:delete(Fname), - init_table(Config, 9), + init_table_1(Config), fast_init_table(Config). -init_table(Config, V) -> +init_table_1(Config) -> TabRef = init_table_test, Fname = filename(TabRef, Config), file:delete(Fname), P0 = pps(), - Args = [{file,Fname},{version,V},{auto_save,120000}], + Args = [{file,Fname},{auto_save,120000}], {ok, _} = dets:open_file(TabRef, Args), {'EXIT', _} = (catch dets:init_table(TabRef, fun(foo) -> bar end)), @@ -800,13 +678,13 @@ init_table(Config, V) -> file:delete(Fname), L1 = [[{1,a},{2,b}],[],[{3,c}],[{4,d}],[]], - bulk_init(L1, set, 4, Config, V), + bulk_init(L1, set, 4, Config), L2 = [[{1,a},{2,b}],[],[{2,q},{3,c}],[{4,d}],[{4,e},{2,q}]], - bulk_init(L2, set, 4, Config, V), - bulk_init(L2, bag, 6, Config, V), - bulk_init(L2, duplicate_bag, 7, Config, V), - bulk_init(L1, set, 4, 512, Config, V), - bulk_init([], set, 0, 10000, Config, V), + bulk_init(L2, set, 4, Config), + bulk_init(L2, bag, 6, Config), + bulk_init(L2, duplicate_bag, 7, Config), + bulk_init(L1, set, 4, 512, Config), + bulk_init([], set, 0, 10000, Config), file:delete(Fname), %% Initiate a file that contains a lot of objects. @@ -834,16 +712,16 @@ init_table(Config, V) -> check_pps(P0), ok. -bulk_init(Ls, Type, N, Config, V) -> - bulk_init(Ls, Type, N, 256, Config, V). +bulk_init(Ls, Type, N, Config) -> + bulk_init(Ls, Type, N, 256, Config). -bulk_init(Ls, Type, N, Est, Config, V) -> +bulk_init(Ls, Type, N, Est, Config) -> T = init_table_test, Fname = filename(T, Config), file:delete(Fname), Input = init(Ls), Args = [{ram_file,false}, {type,Type},{keypos,1},{file,Fname}, - {estimated_no_objects, Est},{version,V}], + {estimated_no_objects, Est}], {ok, T} = dets:open_file(T, Args), ok = dets:init_table(T, Input), All = sort(get_all_objects(T)), @@ -882,18 +760,17 @@ init_fun(I, N) -> end. fast_init_table(Config) -> - V = 9, TabRef = init_table_test, Fname = filename(TabRef, Config), file:delete(Fname), P0 = pps(), - Args = [{file,Fname},{version,V},{auto_save,120000}], + Args = [{file,Fname},{auto_save,120000}], Source = init_table_test_source, SourceFname = filename(Source, Config), file:delete(SourceFname), - SourceArgs = [{file,SourceFname},{version,V},{auto_save,120000}], + SourceArgs = [{file,SourceFname},{auto_save,120000}], {ok, Source} = dets:open_file(Source, SourceArgs), @@ -1015,13 +892,13 @@ fast_init_table(Config) -> file:delete(SourceFname), L1 = [{1,a},{2,b},{3,c},{4,d}], - fast_bulk_init(L1, set, 4, 4, Config, V), + fast_bulk_init(L1, set, 4, 4, Config), L2 = [{1,a},{2,b},{2,q},{3,c},{4,d},{4,e},{2,q}], - fast_bulk_init(L2, set, 4, 4, Config, V), - fast_bulk_init(L2, bag, 6, 4, Config, V), - fast_bulk_init(L2, duplicate_bag, 7, 4, Config, V), - fast_bulk_init(L1, set, 4, 4, 512, Config, V), - fast_bulk_init([], set, 0, 0, 10000, Config, V), + fast_bulk_init(L2, set, 4, 4, Config), + fast_bulk_init(L2, bag, 6, 4, Config), + fast_bulk_init(L2, duplicate_bag, 7, 4, Config), + fast_bulk_init(L1, set, 4, 4, 512, Config), + fast_bulk_init([], set, 0, 0, 10000, Config), file:delete(Fname), %% Initiate a file that contains a lot of objects. @@ -1112,16 +989,16 @@ fast_init_table(Config) -> check_pps(P0), ok. -fast_bulk_init(L, Type, N, NoKeys, Config, V) -> - fast_bulk_init(L, Type, N, NoKeys, 256, Config, V). +fast_bulk_init(L, Type, N, NoKeys, Config) -> + fast_bulk_init(L, Type, N, NoKeys, 256, Config). -fast_bulk_init(L, Type, N, NoKeys, Est, Config, V) -> +fast_bulk_init(L, Type, N, NoKeys, Est, Config) -> T = init_table_test, Fname = filename(T, Config), file:delete(Fname), Args0 = [{ram_file,false}, {type,Type},{keypos,1}, - {estimated_no_objects, Est},{version,V}], + {estimated_no_objects, Est}], Args = [{file,Fname} | Args0], S = init_table_test_source, SFname = filename(S, Config), @@ -1189,35 +1066,7 @@ items(I, N, C, L) -> items(I+1, N, C-1, [{I, item(I)} | L]). %% Test open_file and repair. -repair_v8(Config) when is_list(Config) -> - repair(Config, 8). - -%% Test open_file and repair. -repair_v9(Config) when is_list(Config) -> - %% Convert from format 9 to format 8. - T = convert_98, - Fname = filename(T, Config), - file:delete(Fname), - {ok, _} = dets:open_file(T, [{file,Fname},{version,9}, - {type,duplicate_bag}]), - 9 = dets:info(T, version), - true = is_binary(dets:info(T, bchunk_format)), - ok = dets:insert(T, [{1,a},{2,b},{1,c},{2,c},{1,c},{2,a},{1,b}]), - dets:close(T), - {error, {version_mismatch, _}} = - dets:open_file(T, [{file,Fname},{version,8},{type,duplicate_bag}]), - {ok, _} = dets:open_file(T, [{file,Fname},{version,8}, - {type,duplicate_bag},{repair,force}]), - 8 = dets:info(T, version), - true = undefined =:= dets:info(T, bchunk_format), - [{1,a},{1,b},{1,c},{1,c}] = sort(dets:lookup(T, 1)), - [{2,a},{2,b},{2,c}] = sort(dets:lookup(T, 2)), - 7 = dets:info(T, no_objects), - no_keys_test(T), - _ = histogram(T, silent), - ok = dets:close(T), - file:delete(Fname), - +repair(Config) when is_list(Config) -> %% The short lived format 9(a). %% Not very throughly tested here. A9 = a9, @@ -1238,13 +1087,13 @@ repair_v9(Config) when is_list(Config) -> ok = dets:close(A9), file:delete(Version9aT), - repair(Config, 9). + repair_1(Config). -repair(Config, V) -> +repair_1(Config) -> TabRef = repair_test, Fname = filename(TabRef, Config), file:delete(Fname), - HeadSize = headsz(V), + HeadSize = headsz(), P0 = pps(), {'EXIT', {badarg, _}} = @@ -1255,7 +1104,7 @@ repair(Config, V) -> dets:open_file(TabRef, [{file, Fname}, {access, read}]), %% compacting, and some kind of test that free lists are saved OK on file - {ok, TabRef} = dets:open_file(TabRef, [{file,Fname},{version,V}]), + {ok, TabRef} = dets:open_file(TabRef, [{file,Fname}]), 0 = dets:info(TabRef, size), ok = ins(TabRef, 30000), ok = del(TabRef, 30000, 3), @@ -1268,38 +1117,20 @@ repair(Config, V) -> 20000 = count_objects_quite_fast(Ref3), % actually a test of match no_keys_test(Ref3), ok = dets:close(Ref3), - if - V =:= 8 -> - {ok, TabRef} = dets:open_file(TabRef, - [{file, Fname},{version,V},{access,read}]), - ok = dets:close(TabRef), - io:format("Expect compacting repair:~n"), - {ok, TabRef} = dets:open_file(TabRef, - [{file, Fname},{version,V}]), - 20000 = dets:info(TabRef, size), - _ = histogram(TabRef, silent), - ok = dets:close(TabRef); - true -> - ok - end, {error,{keypos_mismatch,Fname}} = dets:open_file(TabRef, [{file, Fname},{keypos,17}]), {error,{type_mismatch,Fname}} = dets:open_file(TabRef, [{file, Fname},{type,duplicate_bag}]), %% make one of the temporary files unwritable - TmpFile = if - V =:= 8 -> - Fname ++ ".TMP.10000"; - true -> Fname ++ ".TMP.1" - end, + TmpFile = Fname ++ ".TMP.1", file:delete(TmpFile), {ok, TmpFd} = file:open(TmpFile, [read,write]), ok = file:close(TmpFd), unwritable(TmpFile), - {error,{file_error,TmpFile,eacces}} = dets:fsck(Fname, V), + {error,{file_error,TmpFile,eacces}} = dets:fsck(Fname), {ok, _} = dets:open_file(TabRef, - [{repair,false},{file, Fname},{version,V}]), + [{repair,false},{file, Fname}]), 20000 = length(get_all_objects(TabRef)), _ = histogram(TabRef, silent), 20000 = length(get_all_objects_fast(TabRef)), @@ -1318,68 +1149,15 @@ repair(Config, V) -> file:delete(Fname), %% truncated file header - {ok, TabRef} = dets:open_file(TabRef, [{file,Fname},{version,V}]), + {ok, TabRef} = dets:open_file(TabRef, [{file,Fname}]), ok = ins(TabRef, 100), ok = dets:close(TabRef), file:delete(Fname), - %% version bump (v8) - Version7S = filename:join(?datadir(Config), "version_r2d.dets"), - Version7T = filename('v2.dets', Config), - {ok, _} = file:copy(Version7S, Version7T), - {error,{version_bump, Version7T}} = dets:open_file(Version7T), - {error,{version_bump, Version7T}} = - dets:open_file(Version7T, [{file,Version7T},{repair,false}]), - {error,{version_bump, Version7T}} = - dets:open_file(Version7T, [{file, Version7T}, {access, read}]), - io:format("Expect upgrade:~n"), - {ok, _} = dets:open_file(Version7T, - [{file, Version7T},{version, V}]), - [{1,a},{2,b}] = sort(get_all_objects(Version7T)), - [{1,a},{2,b}] = sort(get_all_objects_fast(Version7T)), - Phash = if - V =:= 8 -> phash; - true -> phash2 - end, - Phash = dets:info(Version7T, hash), - _ = histogram(Version7T, silent), - ok = dets:close(Version7T), - {ok, _} = dets:open_file(Version7T, [{file, Version7T}]), - Phash = dets:info(Version7T, hash), - ok = dets:close(Version7T), - file:delete(Version7T), - - %% converting free lists - Version8aS = filename:join(?datadir(Config), "version_r3b02.dets"), - Version8aT = filename('v3.dets', Config), - {ok, _} = file:copy(Version8aS, Version8aT), - %% min_no_slots and max_no_slots are ignored - no repair is taking place - {ok, _} = dets:open_file(version_8a, - [{file, Version8aT},{min_no_slots,1000}, - {max_no_slots,100000}]), - [{1,b},{2,a},{a,1},{b,2}] = sort(get_all_objects(version_8a)), - [{1,b},{2,a},{a,1},{b,2}] = sort(get_all_objects_fast(version_8a)), - ok = ins(version_8a, 1000), - 1002 = dets:info(version_8a, size), - no_keys_test(version_8a), - All8a = sort(get_all_objects(version_8a)), - 1002 = length(All8a), - FAll8a = sort(get_all_objects_fast(version_8a)), - true = sort(All8a) =:= sort(FAll8a), - ok = del(version_8a, 300, 3), - 902 = dets:info(version_8a, size), - no_keys_test(version_8a), - All8a2 = sort(get_all_objects(version_8a)), - 902 = length(All8a2), - FAll8a2 = sort(get_all_objects_fast(version_8a)), - true = sort(All8a2) =:= sort(FAll8a2), - _ = histogram(version_8a, silent), - ok = dets:close(version_8a), - file:delete(Version8aT), - + %% FIXME. %% will fail unless the slots are properly sorted when repairing (v8) BArgs = [{file, Fname},{type,duplicate_bag}, - {delayed_write,{3000,10000}},{version,V}], + {delayed_write,{3000,10000}}], {ok, TabRef} = dets:open_file(TabRef, BArgs), Seq = seq(1, 500), Small = map(fun(X) -> {X,X} end, Seq), @@ -1393,18 +1171,14 @@ repair(Config, V) -> io:format("Expect forced repair:~n"), {ok, _} = dets:open_file(TabRef, [{repair,force},{min_no_slots,2000} | BArgs]), - if - V =:= 9 -> - {MinNoSlots,_,MaxNoSlots} = dets:info(TabRef, no_slots), - ok = dets:close(TabRef), - io:format("Expect compaction:~n"), - {ok, _} = - dets:open_file(TabRef, [{repair,force}, - {min_no_slots,MinNoSlots}, - {max_no_slots,MaxNoSlots} | BArgs]); - true -> - ok - end, + + {MinNoSlots,_,MaxNoSlots} = dets:info(TabRef, no_slots), + ok = dets:close(TabRef), + io:format("Expect compaction:~n"), + {ok, _} = + dets:open_file(TabRef, [{repair,force}, + {min_no_slots,MinNoSlots}, + {max_no_slots,MaxNoSlots} | BArgs]), All2 = get_all_objects(TabRef), true = All =:= sort(All2), FAll2 = get_all_objects_fast(TabRef), @@ -1418,35 +1192,15 @@ repair(Config, V) -> file:delete(Fname), %% object bigger than segments, the "hole" is taken care of - {ok, TabRef} = dets:open_file(TabRef, [{file, Fname},{version,V}]), + {ok, TabRef} = dets:open_file(TabRef, [{file, Fname}]), Tuple = erlang:make_tuple(1000, foobar), % > 2 kB ok = dets:insert(TabRef, Tuple), %% at least one full segment (objects smaller than 2 kB): ins(TabRef, 2000), ok = dets:close(TabRef), - if - V =:= 8 -> - %% first estimated number of objects is wrong, repair once more - {ok, Fd} = file:open(Fname, [read,write]), - NoPos = HeadSize - 8, % no_objects - file:pwrite(Fd, NoPos, <<0:32>>), % NoItems - ok = file:close(Fd), - dets:fsck(Fname, V), - {ok, _} = - dets:open_file(TabRef, - [{repair,false},{file, Fname},{version,V}]), - 2001 = length(get_all_objects(TabRef)), - _ = histogram(TabRef, silent), - 2001 = length(get_all_objects_fast(TabRef)), - ok = dets:close(TabRef); - true -> - ok - end, - {ok, _} = - dets:open_file(TabRef, - [{repair,false},{file, Fname},{version,V}]), + dets:open_file(TabRef, [{repair,false},{file, Fname}]), {ok, ObjPos} = dets:where(TabRef, {66,{item,number,66}}), ok = dets:close(TabRef), %% Damaged object. @@ -1454,25 +1208,24 @@ repair(Config, V) -> crash(Fname, ObjPos+Pos), io:format( "Expect forced repair (possibly after attempted compaction):~n"), - {ok, _} = - dets:open_file(TabRef, [{repair,force},{file, Fname},{version,V}]), + {ok, _} = dets:open_file(TabRef, [{repair,force},{file, Fname}]), true = dets:info(TabRef, size) < 2001, ok = dets:close(TabRef), file:delete(Fname), %% The file is smaller than the padded object. - {ok, TabRef} = dets:open_file(TabRef, [{file,Fname},{version,V}]), + {ok, TabRef} = dets:open_file(TabRef, [{file,Fname}]), ok = dets:insert(TabRef, Tuple), ok = dets:close(TabRef), io:format("Expect forced repair or compaction:~n"), {ok, _} = - dets:open_file(TabRef, [{repair,force},{file, Fname},{version,V}]), + dets:open_file(TabRef, [{repair,force},{file, Fname}]), true = 1 =:= dets:info(TabRef, size), ok = dets:close(TabRef), file:delete(Fname), %% Damaged free lists. - {ok, TabRef} = dets:open_file(TabRef, [{file,Fname},{version,V}]), + {ok, TabRef} = dets:open_file(TabRef, [{file,Fname}]), ok = ins(TabRef, 300), ok = dets:sync(TabRef), ok = del(TabRef, 300, 3), @@ -1481,48 +1234,42 @@ repair(Config, V) -> ok = dets:close(TabRef), crash(Fname, FileSize+20), %% Used to return bad_freelists, but that changed in OTP-9622 - {ok, TabRef} = - dets:open_file(TabRef, [{file,Fname},{version,V}]), + {ok, TabRef} = dets:open_file(TabRef, [{file,Fname}]), ok = dets:close(TabRef), file:delete(Fname), %% File not closed, opening with read and read_write access tried. - {ok, TabRef} = dets:open_file(TabRef, [{file,Fname},{version,V}]), + {ok, TabRef} = dets:open_file(TabRef, [{file,Fname}]), ok = ins(TabRef, 300), ok = dets:close(TabRef), crash(Fname, ?CLOSED_PROPERLY_POS+3, ?NOT_PROPERLY_CLOSED), {error, {not_closed, Fname}} = - dets:open_file(foo, [{file,Fname},{version,V},{repair,force}, + dets:open_file(foo, [{file,Fname},{repair,force}, {access,read}]), {error, {not_closed, Fname}} = - dets:open_file(foo, [{file,Fname},{version,V},{repair,true}, + dets:open_file(foo, [{file,Fname},{repair,true}, {access,read}]), io:format("Expect repair:~n"), {ok, TabRef} = - dets:open_file(TabRef, [{file,Fname},{version,V},{repair,true}, + dets:open_file(TabRef, [{file,Fname},{repair,true}, {access,read_write}]), ok = dets:close(TabRef), crash(Fname, ?CLOSED_PROPERLY_POS+3, ?NOT_PROPERLY_CLOSED), io:format("Expect forced repair:~n"), {ok, TabRef} = - dets:open_file(TabRef, [{file,Fname},{version,V},{repair,force}, + dets:open_file(TabRef, [{file,Fname},{repair,force}, {access,read_write}]), ok = dets:close(TabRef), file:delete(Fname), %% The size of an object is huge. - {ok, TabRef} = dets:open_file(TabRef, [{file,Fname},{version,V}]), + {ok, TabRef} = dets:open_file(TabRef, [{file,Fname}]), ok = dets:insert(TabRef, [{1,2,3},{2,3,4}]), {ok, ObjPos2} = dets:where(TabRef, {1,2,3}), ok = dets:close(TabRef), - ObjPos3 = if - V =:= 8 -> ObjPos2 + 4; - V =:= 9 -> ObjPos2 - end, - crash(Fname, ObjPos3, 255), + crash(Fname, ObjPos2, 255), io:format("Expect forced repair:~n"), - {ok, TabRef} = - dets:open_file(TabRef, [{file,Fname},{version,V},{repair,force}]), + {ok, TabRef} = dets:open_file(TabRef, [{file,Fname},{repair,force}]), ok = dets:close(TabRef), file:delete(Fname), @@ -1530,82 +1277,6 @@ repair(Config, V) -> ok. -%% Test the use of different hashing algorithms in v8b and v8c of the -%% Dets file format. -hash_v8b_v8c(Config) when is_list(Config) -> - Source = - filename:join(?datadir(Config), "dets_test_v8b.dets"), - %% Little endian version of old file (there is an endianess bug in - %% the old hash). This is all about version 8 of the dets file format. - - P0 = pps(), - SourceLE = - filename:join(?datadir(Config), - "dets_test_v8b_little_endian.dets"), - Target1 = filename('oldhash1.dets', Config), - Target1LE = filename('oldhash1le.dets', Config), - Target2 = filename('oldhash2.dets', Config), - {ok, Bin} = file:read_file(Source), - {ok, BinLE} = file:read_file(SourceLE), - ok = file:write_file(Target1,Bin), - ok = file:write_file(Target1LE,BinLE), - ok = file:write_file(Target2,Bin), - {ok, d1} = dets:open_file(d1,[{file,Target1}]), - {ok, d1le} = dets:open_file(d1le,[{file,Target1LE}]), - {ok, d2} = dets:open_file(d2,[{file,Target2},{repair,force}, - {version,8}]), - FF = fun(N,_F,_T) when N > 16#FFFFFFFFFFFFFFFF -> - ok; - (N,F,T) -> - V = integer_to_list(N), - case dets:lookup(T,N) of - [{N,V}] -> - F(N*2,F,T); - _Error -> - exit({failed,{lookup,T,N}}) - end - end, - Mess = case (catch FF(1,FF,d1)) of - {'EXIT', {failed, {lookup,_,_}}} -> - ok = dets:close(d1), - FF(1,FF,d1le), - hash = dets:info(d1le,hash), - dets:insert(d1le,{33333333333,hejsan}), - [{33333333333,hejsan}] = - dets:lookup(d1le,33333333333), - ok = dets:close(d1le), - {ok, d1le} = dets:open_file(d1le, - [{file,Target1LE}]), - [{33333333333,hejsan}] = - dets:lookup(d1le,33333333333), - FF(1,FF,d1le), - ok = dets:close(d1le), - "Seems to be a little endian machine"; - {'EXIT', Fault} -> - exit(Fault); - _ -> - ok = dets:close(d1le), - hash = dets:info(d1,hash), - dets:insert(d1,{33333333333,hejsan}), - [{33333333333,hejsan}] = - dets:lookup(d1,33333333333), - ok = dets:close(d1), - {ok, d1} = dets:open_file(d1,[{file,Target1}]), - [{33333333333,hejsan}] = - dets:lookup(d1,33333333333), - FF(1,FF,d1), - ok = dets:close(d1), - "Seems to be a big endian machine" - end, - FF(1,FF,d2), - phash = dets:info(d2,hash), - ok = dets:close(d2), - file:delete(Target1), - file:delete(Target1LE), - file:delete(Target2), - check_pps(P0), - {comment, Mess}. - %% Test version 9(b) with erlang:phash/2 as hash function. phash(Config) when is_list(Config) -> T = phash, @@ -1643,9 +1314,10 @@ phash(Config) when is_list(Config) -> ok = dets:close(T), %% One cannot use the bchunk format when copying between a phash - %% table and a phash2 table. (There is no test for the case an R9 - %% (or later) node (using phash2) copies a table to an R8 node - %% (using phash).) See also the comment on HASH_PARMS in dets_v9.erl. + %% table and a phash2 table. (There is no test for the case an + %% Erlang/OTP R9 (or later) node (using phash2) copies a table to + %% an Erlang/OTP R8 node (using phash).) See also the comment on + %% HASH_PARMS in dets_v9.erl. {ok, _} = file:copy(Phash_v9bS, Fname), {ok, T} = dets:open_file(T, [{file, Fname}]), Type = dets:info(T, type), @@ -1653,7 +1325,7 @@ phash(Config) when is_list(Config) -> Input = init_bchunk(T), T2 = phash_table, Fname2 = filename(T2, Config), - Args = [{type,Type},{keypos,KeyPos},{version,9},{file,Fname2}], + Args = [{type,Type},{keypos,KeyPos},{file,Fname2}], {ok, T2} = dets:open_file(T2, Args), {error, {init_fun, _}} = dets:init_table(T2, Input, {format,bchunk}), @@ -1665,21 +1337,14 @@ phash(Config) when is_list(Config) -> ok. %% Test foldl, foldr, to_ets. -fold_v8(Config) when is_list(Config) -> - fold(Config, 8). - -%% Test foldl, foldr, to_ets. -fold_v9(Config) when is_list(Config) -> - fold(Config, 9). - -fold(Config, Version) -> +fold(Config) when is_list(Config) -> T = test_table, N = 100, Fname = filename(T, Config), file:delete(Fname), P0 = pps(), - Args = [{version, Version}, {file,Fname}, {estimated_no_objects, N}], + Args = [{file,Fname}, {estimated_no_objects, N}], {ok, _} = dets:open_file(T, Args), ok = ins(T, N), @@ -1721,10 +1386,7 @@ fold(Config, Version) -> ok = dets:close(T), %% Damaged object. - Pos = if - Version =:= 8 -> 12; - Version =:= 9 -> 8 - end, + Pos = 8, crash(Fname, ObjPos+Pos), {ok, _} = dets:open_file(T, Args), io:format("Expect corrupt table:~n"), @@ -1738,18 +1400,11 @@ fold(Config, Version) -> ok. %% Add objects to a fixed table. -fixtable_v8(Config) when is_list(Config) -> - fixtable(Config, 8). - -%% Add objects to a fixed table. -fixtable_v9(Config) when is_list(Config) -> - fixtable(Config, 9). - -fixtable(Config, Version) when is_list(Config) -> +fixtable(Config) when is_list(Config) -> T = fixtable, Fname = filename(fixtable, Config), file:delete(Fname), - Args = [{version,Version},{file,Fname}], + Args = [{file,Fname}], P0 = pps(), {ok, _} = dets:open_file(T, Args), @@ -1832,21 +1487,13 @@ fixtable(Config, Version) when is_list(Config) -> ok. %% Matching objects of a fixed table. -match_v8(Config) when is_list(Config) -> - match(Config, 8). - -%% Matching objects of a fixed table. -match_v9(Config) when is_list(Config) -> - match(Config, 9). - -match(Config, Version) -> +match(Config) when is_list(Config) -> T = match, Fname = filename(match, Config), file:delete(Fname), P0 = pps(), - Args = [{version, Version}, {file,Fname}, {type, duplicate_bag}, - {estimated_no_objects,550}], + Args = [{file,Fname}, {type, duplicate_bag}, {estimated_no_objects,550}], {ok, _} = dets:open_file(T, Args), ok = dets:insert(T, {1, a, b}), ok = dets:insert(T, {1, b, a}), @@ -1901,7 +1548,7 @@ match(Config, Version) -> {_, TmpCont} = dets:match_object(T, '_', 200), {_, TmpCont1} = dets:match_object(TmpCont), {TTL, _} = dets:match_object(TmpCont1), - DI = if Version =:= 8 -> last(TTL); Version =:= 9 -> hd(TTL) end, + DI = hd(TTL), dets:safe_fixtable(T, true), {L1, C20} = dets:match_object(T, '_', 200), true = 200 =< length(L1), @@ -1957,8 +1604,7 @@ match(Config, Version) -> ok = dets:close(T), %% Damaged size of object. - %% In v8, there is a next pointer before the size. - CrashPos = if Version =:= 8 -> 5; Version =:= 9 -> 1 end, + CrashPos = 1, crash(Fname, ObjPos2+CrashPos), {ok, _} = dets:open_file(T, Args), case dets:insert_new(T, Obj) of % OTP-12024 @@ -1986,7 +1632,7 @@ match(Config, Version) -> ok = dets:close(T), %% match_delete finds an error - CrashPos3 = if Version =:= 8 -> 12; Version =:= 9 -> 16 end, + CrashPos3 = 16, crash(Fname, ObjPos3+CrashPos3), {ok, _} = dets:open_file(T, Args), bad_object(dets:match_delete(T, Spec), Fname), @@ -2008,21 +1654,13 @@ match(Config, Version) -> ok. %% Selecting objects of a fixed table. -select_v8(Config) when is_list(Config) -> - select(Config, 8). - -%% Selecting objects of a fixed table. -select_v9(Config) when is_list(Config) -> - select(Config, 9). - -select(Config, Version) -> +select(Config) when is_list(Config) -> T = select, Fname = filename(select, Config), file:delete(Fname), P0 = pps(), - Args = [{version,Version}, {file,Fname}, {type, duplicate_bag}, - {estimated_no_objects,550}], + Args = [{file,Fname}, {type, duplicate_bag},{estimated_no_objects,550}], {ok, _} = dets:open_file(T, Args), ok = dets:insert(T, {1, a, b}), ok = dets:insert(T, {1, b, a}), @@ -2074,7 +1712,7 @@ select(Config, Version) -> {_, TmpCont} = dets:match_object(T, '_', 200), {_, TmpCont1} = dets:match_object(TmpCont), {TTL, _} = dets:match_object(TmpCont1), - DI = if Version =:= 8 -> last(TTL); Version =:= 9 -> hd(TTL) end, + DI = hd(TTL), dets:safe_fixtable(T, true), {L1, C20} = dets:select(T, AllSpec, 200), true = 200 =< length(L1), @@ -2281,28 +1919,21 @@ badarg(Config) when is_list(Config) -> ok. %% Test the write cache for sets. -cache_sets_v8(Config) when is_list(Config) -> - cache_sets(Config, 8). - -%% Test the write cache for sets. -cache_sets_v9(Config) when is_list(Config) -> - cache_sets(Config, 9). - -cache_sets(Config, Version) -> +cache_sets(Config) when is_list(Config) -> Small = 2, - cache_sets(Config, {0,0}, false, Small, Version), - cache_sets(Config, {0,0}, true, Small, Version), - cache_sets(Config, {5000,5000}, false, Small, Version), - cache_sets(Config, {5000,5000}, true, Small, Version), + cache_sets(Config, {0,0}, false, Small), + cache_sets(Config, {0,0}, true, Small), + cache_sets(Config, {5000,5000}, false, Small), + cache_sets(Config, {5000,5000}, true, Small), %% Objects of size greater than 2 kB. Big = 1200, - cache_sets(Config, {0,0}, false, Big, Version), - cache_sets(Config, {0,0}, true, Big, Version), - cache_sets(Config, {5000,5000}, false, Big, Version), - cache_sets(Config, {5000,5000}, true, Big, Version), + cache_sets(Config, {0,0}, false, Big), + cache_sets(Config, {0,0}, true, Big), + cache_sets(Config, {5000,5000}, false, Big), + cache_sets(Config, {5000,5000}, true, Big), ok. -cache_sets(Config, DelayedWrite, Extra, Sz, Version) -> +cache_sets(Config, DelayedWrite, Extra, Sz) -> %% Extra = bool(). Insert tuples until the tested key is not alone. %% Sz = integer(). Size of the inserted tuples. @@ -2311,9 +1942,8 @@ cache_sets(Config, DelayedWrite, Extra, Sz, Version) -> file:delete(Fname), P0 = pps(), - {ok, _} = - dets:open_file(T,[{version, Version}, {file,Fname}, {type,set}, - {delayed_write, DelayedWrite}]), + {ok, _} = dets:open_file(T,[{file,Fname}, {type,set}, + {delayed_write, DelayedWrite}]), Dups = 1, {Key, OtherKeys} = @@ -2430,28 +2060,21 @@ cache_sets(Config, DelayedWrite, Extra, Sz, Version) -> ok. %% Test the write cache for bags. -cache_bags_v8(Config) when is_list(Config) -> - cache_bags(Config, 8). - -%% Test the write cache for bags. -cache_bags_v9(Config) when is_list(Config) -> - cache_bags(Config, 9). - -cache_bags(Config, Version) -> +cache_bags(Config) when is_list(Config) -> Small = 2, - cache_bags(Config, {0,0}, false, Small, Version), - cache_bags(Config, {0,0}, true, Small, Version), - cache_bags(Config, {5000,5000}, false, Small, Version), - cache_bags(Config, {5000,5000}, true, Small, Version), + cache_bags(Config, {0,0}, false, Small), + cache_bags(Config, {0,0}, true, Small), + cache_bags(Config, {5000,5000}, false, Small), + cache_bags(Config, {5000,5000}, true, Small), %% Objects of size greater than 2 kB. Big = 1200, - cache_bags(Config, {0,0}, false, Big, Version), - cache_bags(Config, {0,0}, true, Big, Version), - cache_bags(Config, {5000,5000}, false, Big, Version), - cache_bags(Config, {5000,5000}, true, Big, Version), + cache_bags(Config, {0,0}, false, Big), + cache_bags(Config, {0,0}, true, Big), + cache_bags(Config, {5000,5000}, false, Big), + cache_bags(Config, {5000,5000}, true, Big), ok. -cache_bags(Config, DelayedWrite, Extra, Sz, Version) -> +cache_bags(Config, DelayedWrite, Extra, Sz) -> %% Extra = bool(). Insert tuples until the tested key is not alone. %% Sz = integer(). Size of the inserted tuples. @@ -2460,9 +2083,8 @@ cache_bags(Config, DelayedWrite, Extra, Sz, Version) -> file:delete(Fname), P0 = pps(), - {ok, _} = - dets:open_file(T,[{version, Version}, {file,Fname}, {type,bag}, - {delayed_write, DelayedWrite}]), + {ok, _} = dets:open_file(T,[{file,Fname}, {type,bag}, + {delayed_write, DelayedWrite}]), Dups = 1, {Key, OtherKeys} = @@ -2588,8 +2210,7 @@ cache_bags(Config, DelayedWrite, Extra, Sz, Version) -> R1 = {index_test,1,2,3,4}, R2 = {index_test,2,2,13,14}, R3 = {index_test,1,12,13,14}, - {ok, _} = dets:open_file(T,[{version,Version},{type,bag}, - {keypos,2},{file,Fname}]), + {ok, _} = dets:open_file(T,[{type,bag}, {keypos,2},{file,Fname}]), ok = dets:insert(T,R1), ok = dets:sync(T), ok = dets:insert(T,R2), @@ -2606,27 +2227,20 @@ cache_bags(Config, DelayedWrite, Extra, Sz, Version) -> ok. %% Test the write cache for duplicate bags. -cache_duplicate_bags_v8(Config) when is_list(Config) -> - cache_duplicate_bags(Config, 8). - -%% Test the write cache for duplicate bags. -cache_duplicate_bags_v9(Config) when is_list(Config) -> - cache_duplicate_bags(Config, 9). - -cache_duplicate_bags(Config, Version) -> +cache_duplicate_bags(Config) when is_list(Config) -> Small = 2, - cache_dup_bags(Config, {0,0}, false, Small, Version), - cache_dup_bags(Config, {0,0}, true, Small, Version), - cache_dup_bags(Config, {5000,5000}, false, Small, Version), - cache_dup_bags(Config, {5000,5000}, true, Small, Version), + cache_dup_bags(Config, {0,0}, false, Small), + cache_dup_bags(Config, {0,0}, true, Small), + cache_dup_bags(Config, {5000,5000}, false, Small), + cache_dup_bags(Config, {5000,5000}, true, Small), %% Objects of size greater than 2 kB. Big = 1200, - cache_dup_bags(Config, {0,0}, false, Big, Version), - cache_dup_bags(Config, {0,0}, true, Big, Version), - cache_dup_bags(Config, {5000,5000}, false, Big, Version), - cache_dup_bags(Config, {5000,5000}, true, Big, Version). + cache_dup_bags(Config, {0,0}, false, Big), + cache_dup_bags(Config, {0,0}, true, Big), + cache_dup_bags(Config, {5000,5000}, false, Big), + cache_dup_bags(Config, {5000,5000}, true, Big). -cache_dup_bags(Config, DelayedWrite, Extra, Sz, Version) -> +cache_dup_bags(Config, DelayedWrite, Extra, Sz) -> %% Extra = bool(). Insert tuples until the tested key is not alone. %% Sz = integer(). Size of the inserted tuples. @@ -2635,10 +2249,8 @@ cache_dup_bags(Config, DelayedWrite, Extra, Sz, Version) -> file:delete(Fname), P0 = pps(), - {ok, _} = - dets:open_file(T,[{version, Version}, {file,Fname}, - {type,duplicate_bag}, - {delayed_write, DelayedWrite}]), + {ok, _} = dets:open_file(T,[{file,Fname}, {type,duplicate_bag}, + {delayed_write, DelayedWrite}]), Dups = 2, {Key, OtherKeys} = @@ -2869,7 +2481,7 @@ otp_8899(Config) when is_list(Config) -> Server = self(), file:delete(FName), - {ok, _} = dets:open_file(Tab,[{file, FName},{version,9}]), + {ok, _} = dets:open_file(Tab,[{file, FName}]), [P1,P2,P3,P4] = new_clients(4, Tab), MC = [Tab], @@ -2895,7 +2507,7 @@ many_clients(Config) when is_list(Config) -> file:delete(FName), P0 = pps(), - {ok, _} = dets:open_file(Tab,[{file, FName},{version,9}]), + {ok, _} = dets:open_file(Tab,[{file, FName}]), [P1,P2,P3,P4] = new_clients(4, Tab), %% dets:init_table/2 is used for making sure that all processes @@ -2954,14 +2566,14 @@ many_clients(Config) when is_list(Config) -> file:delete(FName), %% Check that errors are handled correctly by the streaming operators. - {ok, _} = dets:open_file(Tab,[{file, FName},{version,9}]), + {ok, _} = dets:open_file(Tab,[{file, FName}]), ok = ins(Tab, 100), Obj = {66,{item,number,66}}, {ok, ObjPos} = dets:where(Tab, Obj), ok = dets:close(Tab), %% Damaged object. crash(FName, ObjPos+12), - {ok, _} = dets:open_file(Tab,[{file, FName},{version,9}]), + {ok, _} = dets:open_file(Tab,[{file, FName}]), BadObject1 = dets:lookup_keys(Tab, [65,66,67,68,69]), bad_object(BadObject1, FName), _Error = dets:close(Tab), @@ -3415,18 +3027,13 @@ repair_continuation(Config) -> %% OTP-5487. Growth of read-only table (again). otp_5487(Config) -> - otp_5487(Config, 9), - otp_5487(Config, 8), - ok. - -otp_5487(Config, Version) -> Tab = otp_5487, Fname = filename(otp_5487, Config), file:delete(Fname), Ets = ets:new(otp_5487, [public, set]), lists:foreach(fun(I) -> ets:insert(Ets, {I,I+1}) end, lists:seq(0,1000)), - {ok, _} = dets:open_file(Tab, [{file,Fname},{version,Version}]), + {ok, _} = dets:open_file(Tab, [{file,Fname}]), ok = dets:from_ets(Tab, Ets), ok = dets:sync(Tab), ok = dets:close(Tab), @@ -3470,14 +3077,12 @@ otp_6359(Config) -> %% OTP-4738. ==/2 and =:=/2. otp_4738(Config) -> - %% Version 8 has not been corrected. - %% (The constant -12857447 is for version 9 only.) - otp_4738_set(9, Config), - otp_4738_bag(9, Config), - otp_4738_dupbag(9, Config), + otp_4738_set(Config), + otp_4738_bag(Config), + otp_4738_dupbag(Config), ok. -otp_4738_dupbag(Version, Config) -> +otp_4738_dupbag(Config) -> Tab = otp_4738, File = filename(Tab, Config), file:delete(File), @@ -3485,7 +3090,7 @@ otp_4738_dupbag(Version, Config) -> F = float(I), One = 1, FOne = float(One), - Args = [{file,File},{type,duplicate_bag},{version,Version}], + Args = [{file,File},{type,duplicate_bag}], {ok, Tab} = dets:open_file(Tab, Args), ok = dets:insert(Tab, [{I,One},{F,One},{I,FOne},{F,FOne}]), ok = dets:sync(Tab), @@ -3530,7 +3135,7 @@ otp_4738_dupbag(Version, Config) -> file:delete(File), ok. -otp_4738_bag(Version, Config) -> +otp_4738_bag(Config) -> Tab = otp_4738, File = filename(Tab, Config), file:delete(File), @@ -3538,7 +3143,7 @@ otp_4738_bag(Version, Config) -> F = float(I), One = 1, FOne = float(One), - Args = [{file,File},{type,bag},{version,Version}], + Args = [{file,File},{type,bag}], {ok, Tab} = dets:open_file(Tab, Args), ok = dets:insert(Tab, [{I,One},{F,One},{I,FOne},{F,FOne}]), ok = dets:sync(Tab), @@ -3561,11 +3166,11 @@ otp_4738_bag(Version, Config) -> ok = dets:close(Tab), file:delete(File). -otp_4738_set(Version, Config) -> +otp_4738_set(Config) -> Tab = otp_4738, File = filename(Tab, Config), file:delete(File), - Args = [{file,File},{type,set},{version,Version}], + Args = [{file,File},{type,set}], %% I and F share the same slot. I = -12857447, @@ -3864,6 +3469,19 @@ wait_for_close(Tab) -> wait_for_close(Tab) end. +%% OTP-13830. Format 8 is no longer supported. +otp_13830(Config) -> + Tab = otp_13830, + File8 = filename:join(?datadir(Config), "version_8.dets"), + {error,{format_8_no_longer_supported,_}} = + dets:open_file(Tab, [{file, File8}]), + File = filename(Tab, Config), + %% Check the 'version' option, for backwards compatibility: + {ok, Tab} = dets:open_file(Tab, [{file, File}, {version, 9}]), + ok = dets:close(Tab), + {ok, Tab} = dets:open_file(Tab, [{file, File}, {version, default}]), + ok = dets:close(Tab). + %% %% Parts common to several test cases %% @@ -4000,9 +3618,7 @@ match_test(Data, Tab) -> %% Utilities %% -headsz(8) -> - ?HEADSZ_v8; -headsz(_) -> +headsz() -> ?HEADSZ_v9. unwritable(Fname) -> @@ -4030,13 +3646,13 @@ filename(Name, Config) when is_atom(Name) -> filename(Name, _Config) -> filename:join(?privdir(_Config), Name). -open_files(_Name, [], _Version) -> +open_files(_Name, []) -> []; -open_files(Name0, [Args | Tail], Version) -> +open_files(Name0, [Args | Tail]) -> ?format("init ~p~n", [Args]), Name = list_to_atom(integer_to_list(Name0)), - {ok, Name} = dets:open_file(Name, [{version,Version} | Args]), - [Name | open_files(Name0+1, Tail, Version)]. + {ok, Name} = dets:open_file(Name, Args), + [Name | open_files(Name0+1, Tail)]. close_all(Tabs) -> foreach(fun(Tab) -> ok = dets:close(Tab) end, Tabs). @@ -4137,20 +3753,15 @@ no_keys_test([T | Ts]) -> no_keys_test([]) -> ok; no_keys_test(T) -> - case dets:info(T, version) of - 8 -> - ok; - 9 -> - Kp = dets:info(T, keypos), - All = dets:match_object(T, '_'), - L = lists:map(fun(X) -> element(Kp, X) end, All), - NoKeys = length(lists:usort(L)), - case {dets:info(T, no_keys), NoKeys} of - {N, N} -> - ok; - {N1, N2} -> - exit({no_keys_test, N1, N2}) - end + Kp = dets:info(T, keypos), + All = dets:match_object(T, '_'), + L = lists:map(fun(X) -> element(Kp, X) end, All), + NoKeys = length(lists:usort(L)), + case {dets:info(T, no_keys), NoKeys} of + {N, N} -> + ok; + {N1, N2} -> + exit({no_keys_test, N1, N2}) end. safe_get_all_objects(Tab) -> @@ -4182,7 +3793,6 @@ count_objs_1({Ts,C}, N) when is_list(Ts) -> get_all_objects_fast(Tab) -> dets:match_object(Tab, '_'). -%% Relevant for version 8. histogram(Tab) -> OnePercent = case dets:info(Tab, no_slots) of undefined -> undefined; @@ -4244,10 +3854,6 @@ ave_histogram([{S,N1} | H], N) -> ave_histogram([], N) -> N. -bad_object({error,{bad_object,FileName}}, FileName) -> - ok; % Version 8, no debug. -bad_object({error,{{bad_object,_,_},FileName}}, FileName) -> - ok; % Version 8, debug... bad_object({error,{{bad_object,_}, FileName}}, FileName) -> ok; % No debug. bad_object({error,{{{bad_object,_,_},_,_,_}, FileName}}, FileName) -> diff --git a/lib/stdlib/test/dets_SUITE_data/dets_test_v8b.dets b/lib/stdlib/test/dets_SUITE_data/dets_test_v8b.dets deleted file mode 100644 index d0aa20fe06..0000000000 Binary files a/lib/stdlib/test/dets_SUITE_data/dets_test_v8b.dets and /dev/null differ diff --git a/lib/stdlib/test/dets_SUITE_data/dets_test_v8b_little_endian.dets b/lib/stdlib/test/dets_SUITE_data/dets_test_v8b_little_endian.dets deleted file mode 100644 index bf490afa1a..0000000000 Binary files a/lib/stdlib/test/dets_SUITE_data/dets_test_v8b_little_endian.dets and /dev/null differ diff --git a/lib/stdlib/test/dets_SUITE_data/version_8.dets b/lib/stdlib/test/dets_SUITE_data/version_8.dets new file mode 100644 index 0000000000..278187e85c Binary files /dev/null and b/lib/stdlib/test/dets_SUITE_data/version_8.dets differ diff --git a/lib/stdlib/test/dets_SUITE_data/version_r2d.dets b/lib/stdlib/test/dets_SUITE_data/version_r2d.dets deleted file mode 100644 index 327072f99e..0000000000 Binary files a/lib/stdlib/test/dets_SUITE_data/version_r2d.dets and /dev/null differ diff --git a/lib/stdlib/test/dets_SUITE_data/version_r3b02.dets b/lib/stdlib/test/dets_SUITE_data/version_r3b02.dets deleted file mode 100644 index 058cd15b31..0000000000 Binary files a/lib/stdlib/test/dets_SUITE_data/version_r3b02.dets and /dev/null differ -- cgit v1.2.3