diff options
Diffstat (limited to 'lib/stdlib/src')
| -rw-r--r-- | lib/stdlib/src/dets.erl | 87 |
1 files changed, 57 insertions, 30 deletions
diff --git a/lib/stdlib/src/dets.erl b/lib/stdlib/src/dets.erl index fa0641ffd9..7ed9c4b695 100644 --- a/lib/stdlib/src/dets.erl +++ b/lib/stdlib/src/dets.erl @@ -2475,10 +2475,25 @@ fopen2(Fname, Tab) -> %% Fd is not always closed upon error, but exit is soon called. {ok, Fd, FH} = read_file_header(Fname, Acc, Ram), Mod = FH#fileheader.mod, - case Mod:check_file_header(FH, Fd) of - {error, not_closed} -> - io:format(user,"dets: file ~p not properly closed, " - "repairing ...~n", [Fname]), + Do = case Mod:check_file_header(FH, Fd) of + {ok, Head1, ExtraInfo} -> + Head2 = Head1#head{filename = Fname}, + try Mod:init_freelist(Head2, ExtraInfo) of + Ftab -> + {ok, Head1#head{freelists = Ftab}} + catch + throw:_ -> + {repair, " has bad free lists, repairing ..."} + end; + {error, not_closed} -> + M = " not properly closed, repairing ...", + {repair, M}; + Else -> + Else + end, + case Do of + {repair, Mess} -> + io:format(user, "dets: file ~p~s~n", [Fname, Mess]), Version = default, case fsck(Fd, Tab, Fname, FH, default, default, Version) of ok -> @@ -2486,9 +2501,9 @@ fopen2(Fname, Tab) -> Error -> throw(Error) end; - {ok, Head, ExtraInfo} -> + {ok, Head} -> open_final(Head, Fname, Acc, Ram, ?DEFAULT_CACHE, - Tab, ExtraInfo, false); + Tab, false); {error, Reason} -> throw({error, {Reason, Fname}}) end; @@ -2520,12 +2535,13 @@ fopen_existing_file(Tab, OpenArgs) -> 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), - Do = case (FH#fileheader.mod):check_file_header(FH, Fd) of + 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}; + {compact, Head, true}; {ok, _Head, _Extra} when Rep =:= force, Acc =:= read -> throw({error, {access_mode, Fname}}); {ok, Head, need_compacting} when Acc =:= read -> @@ -2555,6 +2571,19 @@ fopen_existing_file(Tab, OpenArgs) -> {error, Reason} -> throw({error, {Reason, Fname}}) end, + Do = case Wh of + {Tag, Hd, Extra} when Tag =:= final; Tag =:= compact -> + Hd1 = Hd#head{filename = Fname}, + try Mod:init_freelist(Hd1, Extra) of + Ftab -> + {Tag, Hd#head{freelists = Ftab}} + catch + throw:_ -> + {repair, " has bad free lists, repairing ..."} + end; + Else -> + Else + end, case Do of _ when FH#fileheader.type =/= Type -> throw({error, {type_mismatch, Fname}}); @@ -2563,8 +2592,7 @@ fopen_existing_file(Tab, OpenArgs) -> {compact, SourceHead} -> io:format(user, "dets: file ~p is now compacted ...~n", [Fname]), {ok, NewSourceHead} = open_final(SourceHead, Fname, read, false, - ?DEFAULT_CACHE, Tab, true, - Debug), + ?DEFAULT_CACHE, Tab, Debug), case catch compact(NewSourceHead) of ok -> erlang:garbage_collect(), @@ -2584,9 +2612,9 @@ fopen_existing_file(Tab, OpenArgs) -> Version, OpenArgs); _ when FH#fileheader.version =/= Version, Version =/= default -> throw({error, {version_mismatch, Fname}}); - {final, H, EI} -> + {final, H} -> H1 = H#head{auto_save = Auto}, - open_final(H1, Fname, Acc, Ram, CacheSz, Tab, EI, Debug) + open_final(H1, Fname, Acc, Ram, CacheSz, Tab, Debug) end. do_repair(Fd, Tab, Fname, FH, MinSlots, MaxSlots, Version, OpenArgs) -> @@ -2600,19 +2628,16 @@ do_repair(Fd, Tab, Fname, FH, MinSlots, MaxSlots, Version, OpenArgs) -> end. %% -> {ok, head()} | throw(Error) -open_final(Head, Fname, Acc, Ram, CacheSz, Tab, ExtraInfo, Debug) -> +open_final(Head, Fname, Acc, Ram, CacheSz, Tab, Debug) -> Head1 = Head#head{access = Acc, ram_file = Ram, filename = Fname, name = Tab, cache = dets_utils:new_cache(CacheSz)}, init_disk_map(Head1#head.version, Tab, Debug), - Mod = Head#head.mod, - Mod:cache_segps(Head1#head.fptr, Fname, Head1#head.next), - Ftab = Mod:init_freelist(Head1, ExtraInfo), + (Head1#head.mod):cache_segps(Head1#head.fptr, Fname, Head1#head.next), check_growth(Head1), - NewHead = Head1#head{freelists = Ftab}, - {ok, NewHead}. + {ok, Head1}. %% -> {ok, head()} | throw(Error) fopen_init_file(Tab, OpenArgs) -> @@ -3241,18 +3266,20 @@ view(FileName) -> case catch read_file_header(FileName, read, false) of {ok, Fd, FH} -> Mod = FH#fileheader.mod, - case Mod:check_file_header(FH, Fd) of - {ok, H0, ExtraInfo} -> - Ftab = Mod:init_freelist(H0, ExtraInfo), - {_Bump, Base} = constants(FH, FileName), - H = H0#head{freelists=Ftab, base = Base}, - v_free_list(H), - Mod:v_segments(H), - file:close(Fd); - X -> - file:close(Fd), - X - end; + try + case Mod:check_file_header(FH, Fd) of + {ok, H0, ExtraInfo} -> + Ftab = Mod:init_freelist(H0, ExtraInfo), + {_Bump, Base} = constants(FH, FileName), + H = H0#head{freelists=Ftab, base = Base}, + v_free_list(H), + Mod:v_segments(H), + ok; + X -> + X + end + after file:close(Fd) + end; X -> X end. |