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-rw-r--r--erts/preloaded/src/erl_prim_loader.erl201
1 files changed, 122 insertions, 79 deletions
diff --git a/erts/preloaded/src/erl_prim_loader.erl b/erts/preloaded/src/erl_prim_loader.erl
index 399c2bb55d..c0785083de 100644
--- a/erts/preloaded/src/erl_prim_loader.erl
+++ b/erts/preloaded/src/erl_prim_loader.erl
@@ -1,19 +1,19 @@
%%
%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
-%%
+%%
+%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
+%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
-%%
+%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
-%%
+%%
%% %CopyrightEnd%
%%
@@ -49,7 +49,7 @@
prim_read_file_info/2, prim_get_cwd/2]).
%% Used by escript and code
--export([set_primary_archive/2, release_archives/0]).
+-export([set_primary_archive/3, release_archives/0]).
%% Internal function. Exported to avoid dialyzer warnings
-export([concat/1]).
@@ -220,14 +220,15 @@ get_cwd(Drive) ->
check_file_result(get_cwd, Drive, request({get_cwd,[Drive]})).
-spec set_primary_archive(File :: string() | 'undefined',
- ArchiveBin :: binary() | 'undefined')
- -> {ok, [string()]} | {error,_}.
+ ArchiveBin :: binary() | 'undefined',
+ FileInfo :: #file_info{} | 'undefined')
+ -> {ok, [string()]} | {error,_}.
-set_primary_archive(undefined, undefined) ->
- request({set_primary_archive, undefined, undefined});
-set_primary_archive(File, ArchiveBin)
- when is_list(File), is_binary(ArchiveBin) ->
- request({set_primary_archive, File, ArchiveBin}).
+set_primary_archive(undefined, undefined, undefined) ->
+ request({set_primary_archive, undefined, undefined, undefined});
+set_primary_archive(File, ArchiveBin, FileInfo)
+ when is_list(File), is_binary(ArchiveBin), is_record(FileInfo, file_info) ->
+ request({set_primary_archive, File, ArchiveBin, FileInfo}).
-spec release_archives() -> 'ok' | {'error', _}.
@@ -315,8 +316,8 @@ loop(State, Parent, Paths) ->
{get_cwd,[_]=Args} ->
{Res,State1} = handle_get_cwd(State, Args),
{Res,State1,Paths};
- {set_primary_archive,File,Bin} ->
- {Res,State1} = handle_set_primary_archive(State, File, Bin),
+ {set_primary_archive,File,Bin,FileInfo} ->
+ {Res,State1} = handle_set_primary_archive(State, File, Bin,FileInfo),
{Res,State1,Paths};
release_archives ->
{Res,State1} = handle_release_archives(State),
@@ -356,8 +357,8 @@ handle_get_file(State = #state{loader = efile}, Paths, File) ->
handle_get_file(State = #state{loader = inet}, Paths, File) ->
?SAFE2(inet_get_file_from_port(State, File, Paths), State).
-handle_set_primary_archive(State= #state{loader = efile}, File, Bin) ->
- ?SAFE2(efile_set_primary_archive(State, File, Bin), State).
+handle_set_primary_archive(State= #state{loader = efile}, File, Bin, FileInfo) ->
+ ?SAFE2(efile_set_primary_archive(State, File, Bin, FileInfo), State).
handle_release_archives(State= #state{loader = efile}) ->
?SAFE2(efile_release_archives(State), State).
@@ -481,8 +482,8 @@ efile_get_file_from_port3(State, File, [P | Paths]) ->
efile_get_file_from_port3(State, _File, []) ->
{{error,enoent},State}.
-efile_set_primary_archive(#state{prim_state = PS} = State, File, Bin) ->
- {Res, PS2} = prim_set_primary_archive(PS, File, Bin),
+efile_set_primary_archive(#state{prim_state = PS} = State, File, Bin, FileInfo) ->
+ {Res, PS2} = prim_set_primary_archive(PS, File, Bin, FileInfo),
{Res,State#state{prim_state = PS2}}.
efile_release_archives(#state{prim_state = PS} = State) ->
@@ -572,13 +573,14 @@ find_loop(U, Retry, AL, ReqDelay, SReSleep, Ignore, Tries, LReSleep) ->
case find_loop(U, Retry, AL, ReqDelay, []) of
[] -> % no response from any server
erlang:display({erl_prim_loader,'no server found'}), % lifesign
- Tries1 = if Tries > 0 ->
- sleep(SReSleep),
- Tries - 1;
- true ->
- sleep(LReSleep),
- 0
- end,
+ Tries1 =
+ if Tries > 0 ->
+ sleep(SReSleep),
+ Tries - 1;
+ true ->
+ sleep(LReSleep),
+ 0
+ end,
find_loop(U, Retry, AL, ReqDelay, SReSleep, Ignore, Tries1, LReSleep);
Servers ->
keysort(1, Servers -- Ignore)
@@ -787,9 +789,9 @@ prim_release_archives(PS) ->
prim_do_release_archives(PS, [{ArchiveFile, DictVal} | KeyVals], Acc) ->
Res =
case DictVal of
- {primary, _PrimZip} ->
+ {primary, _PrimZip, _FI} ->
ok; % Keep primary archive
- {_Mtime, Cache} ->
+ {Cache, _FI} ->
debug(PS, {release, cache, ArchiveFile}),
erase(ArchiveFile),
clear_cache(ArchiveFile, Cache)
@@ -805,7 +807,7 @@ prim_do_release_archives(PS, [], []) ->
prim_do_release_archives(PS, [], Errors) ->
{{error, Errors}, PS#prim_state{primary_archive = undefined}}.
-prim_set_primary_archive(PS, undefined, undefined) ->
+prim_set_primary_archive(PS, undefined, undefined, undefined) ->
debug(PS, {set_primary_archive, clean}),
case PS#prim_state.primary_archive of
undefined ->
@@ -813,15 +815,15 @@ prim_set_primary_archive(PS, undefined, undefined) ->
debug(PS, {return, Res}),
{Res, PS};
ArchiveFile ->
- {primary, PrimZip} = erase(ArchiveFile),
+ {primary, PrimZip, _FI} = erase(ArchiveFile),
ok = prim_zip:close(PrimZip),
PS2 = PS#prim_state{primary_archive = undefined},
Res = {ok, []},
debug(PS2, {return, Res}),
{Res, PS2}
end;
-prim_set_primary_archive(PS, ArchiveFile, ArchiveBin)
- when is_list(ArchiveFile), is_binary(ArchiveBin) ->
+prim_set_primary_archive(PS, ArchiveFile, ArchiveBin, FileInfo)
+ when is_list(ArchiveFile), is_binary(ArchiveBin), is_record(FileInfo, file_info) ->
%% Try the archive file
debug(PS, {set_primary_archive, ArchiveFile, byte_size(ArchiveBin)}),
{Res3, PS3} =
@@ -833,17 +835,17 @@ prim_set_primary_archive(PS, ArchiveFile, ArchiveBin)
["", "nibe", RevApp] -> % Reverse ebin
%% Collect ebin directories in archive
Ebin = reverse(RevApp) ++ "/ebin",
- {true, [Ebin | A]};
+ {true, [Ebin | A]};
_ ->
{true, A}
end
end,
Ebins0 = [ArchiveFile],
- case open_archive({ArchiveFile, ArchiveBin}, Ebins0, Fun) of
- {ok, PrimZip, RevEbins} ->
+ case open_archive({ArchiveFile, ArchiveBin}, FileInfo, Ebins0, Fun) of
+ {ok, PrimZip, {RevEbins, FI, _}} ->
Ebins = reverse(RevEbins),
debug(PS, {set_primary_archive, Ebins}),
- put(ArchiveFile, {primary, PrimZip}),
+ put(ArchiveFile, {primary, PrimZip, FI}),
{{ok, Ebins}, PS#prim_state{primary_archive = ArchiveFile}};
Error ->
debug(PS, {set_primary_archive, Error}),
@@ -851,10 +853,10 @@ prim_set_primary_archive(PS, ArchiveFile, ArchiveBin)
end;
OldArchiveFile ->
debug(PS, {set_primary_archive, clean}),
- PrimZip = erase(OldArchiveFile),
+ {primary, PrimZip, _FI} = erase(OldArchiveFile),
ok = prim_zip:close(PrimZip),
PS2 = PS#prim_state{primary_archive = undefined},
- prim_set_primary_archive(PS2, ArchiveFile, ArchiveBin)
+ prim_set_primary_archive(PS2, ArchiveFile, ArchiveBin, FileInfo)
end,
debug(PS3, {return, Res3}),
{Res3, PS3}.
@@ -956,15 +958,15 @@ prim_read_file_info(PS, File) ->
FunnyFile = funny_split(FileInArchive, $/),
Fun =
fun({Funny, GetInfo, _GetBin}, Acc) ->
- if
- hd(Funny) =:= "",
- tl(Funny) =:= FunnyFile ->
+ case Funny of
+ [H | T] when H =:= "",
+ T =:= FunnyFile ->
%% Directory
{false, {ok, GetInfo()}};
- Funny =:= FunnyFile ->
+ F when F =:= FunnyFile ->
%% Plain file
{false, {ok, GetInfo()}};
- true ->
+ _ ->
%% No match
{true, Acc}
end
@@ -990,33 +992,36 @@ prim_get_cwd(PS, [Drive]) ->
apply_archive(PS, Fun, Acc, Archive) ->
case get(Archive) of
undefined ->
+ case open_archive(Archive, Acc, Fun) of
+ {ok, PrimZip, {Acc2, FI, _}} ->
+ debug(PS, {cache, ok}),
+ put(Archive, {{ok, PrimZip}, FI}),
+ {Acc2, PS};
+ Error ->
+ debug(PS, {cache, Error}),
+ %% put(Archive, {Error, FI}),
+ {Error, PS}
+ end;
+ {primary, PrimZip, FI} ->
+ case prim_file:read_file_info(Archive) of
+ {ok, FI2}
+ when FI#file_info.mtime =:= FI2#file_info.mtime ->
+ case foldl_archive(PrimZip, Acc, Fun) of
+ {ok, _PrimZip2, Acc2} ->
+ {Acc2, PS};
+ Error ->
+ debug(PS, {primary, Error}),
+ {Error, PS}
+ end;
+ Error ->
+ debug(PS, {cache, {clear, Error}}),
+ clear_cache(Archive, {ok, PrimZip}),
+ apply_archive(PS, Fun, Acc, Archive)
+ end;
+ {Cache, FI} ->
case prim_file:read_file_info(Archive) of
- {ok, #file_info{mtime = Mtime}} ->
- case open_archive(Archive, Acc, Fun) of
- {ok, PrimZip, Acc2} ->
- debug(PS, {cache, ok}),
- put(Archive, {Mtime, {ok, PrimZip}}),
- {Acc2, PS};
- Error ->
- debug(PS, {cache, Error}),
- put(Archive, {Mtime, Error}),
- {Error, PS}
- end;
- Error ->
- debug(PS, {cache, Error}),
- {Error, PS}
- end;
- {primary, PrimZip} ->
- case foldl_archive(PrimZip, Acc, Fun) of
- {ok, _PrimZip2, Acc2} ->
- {Acc2, PS};
- Error ->
- debug(PS, {primary, Error}),
- {Error, PS}
- end;
- {Mtime, Cache} ->
- case prim_file:read_file_info(Archive) of
- {ok, #file_info{mtime = Mtime2}} when Mtime2 =:= Mtime ->
+ {ok, FI2}
+ when FI#file_info.mtime =:= FI2#file_info.mtime ->
case Cache of
{ok, PrimZip} ->
case foldl_archive(PrimZip, Acc, Fun) of
@@ -1026,7 +1031,8 @@ apply_archive(PS, Fun, Acc, Archive) ->
debug(PS, {cache, {clear, Error}}),
clear_cache(Archive, Cache),
debug(PS, {cache, Error}),
- put(Archive, {Mtime, Error}),
+ erase(Archive),
+ %% put(Archive, {Error, FI}),
{Error, PS}
end;
Error ->
@@ -1041,20 +1047,57 @@ apply_archive(PS, Fun, Acc, Archive) ->
end.
open_archive(Archive, Acc, Fun) ->
+ case prim_file:read_file_info(Archive) of
+ {ok, FileInfo} ->
+ open_archive(Archive, FileInfo, Acc, Fun);
+ {error, Reason} ->
+ {error, Reason}
+ end.
+
+open_archive(Archive, FileInfo, Acc, Fun) ->
+ FakeFI = FileInfo#file_info{type = directory},
Wrapper =
- fun({N, GI, GB}, A) ->
- %% Ensure full iteration at open
- Funny = funny_split(N, $/),
- {_Continue, A2} = Fun({Funny, GI, GB}, A),
- {true, {true, Funny}, A2}
- end,
- prim_zip:open(Wrapper, Acc, Archive).
+ fun({N, GI, GB}, {A, I, FunnyDirs}) -> % Full iteration at open
+ Funny = funny_split(N, $/),
+ FunnyDirs2 =
+ case Funny of
+ ["" | FunnyDir] ->
+ [FunnyDir | FunnyDirs];
+ _ ->
+ FunnyDirs
+ end,
+ {Includes, FunnyDirs3, A2} =
+ ensure_virtual_dirs(Funny, Fun, FakeFI, [{true, Funny}], FunnyDirs2, A),
+ {_Continue, A3} = Fun({Funny, GI, GB}, A2),
+ {true, Includes, {A3, I, FunnyDirs3}}
+ end,
+ prim_zip:open(Wrapper, {Acc, FakeFI, []}, Archive).
+
+ensure_virtual_dirs(Funny, Fun, FakeFI, Includes, FunnyDirs, Acc) ->
+ case Funny of
+ [_ | FunnyDir] ->
+ case lists:member(FunnyDir, FunnyDirs) of % BIF
+ false ->
+ GetInfo = fun() -> FakeFI end,
+ GetBin = fun() -> <<>> end,
+ VirtualDir = ["" | FunnyDir],
+ Includes2 = [{true, VirtualDir, GetInfo, GetBin} | Includes],
+ FunnyDirs2 = [FunnyDir | FunnyDirs],
+ {I, F, Acc2} = ensure_virtual_dirs(FunnyDir, Fun, FakeFI, Includes2, FunnyDirs2, Acc),
+ {_Continue, Acc3} = Fun({VirtualDir, GetInfo, GetBin}, Acc2),
+ {I, F, Acc3};
+ true ->
+ {reverse(Includes), FunnyDirs, Acc}
+ end;
+ [] ->
+ {reverse(Includes), FunnyDirs, Acc}
+ end.
foldl_archive(PrimZip, Acc, Fun) ->
Wrapper =
- fun({N, GI, GB}, A) ->
+ fun({Funny, GI, GB}, A) ->
%% Allow partial iteration at foldl
- {Continue, A2} = Fun({N, GI, GB}, A),
+ {Continue, A2} = Fun({Funny, GI, GB}, A),
{Continue, true, A2}
end,
prim_zip:foldl(Wrapper, Acc, PrimZip).
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 05:23:04 +0000