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-rw-r--r--lib/stdlib/src/zip.erl135
1 files changed, 61 insertions, 74 deletions
diff --git a/lib/stdlib/src/zip.erl b/lib/stdlib/src/zip.erl
index b768c6d0b9..bec0bd3f6d 100644
--- a/lib/stdlib/src/zip.erl
+++ b/lib/stdlib/src/zip.erl
@@ -3,16 +3,17 @@
%%
%% Copyright Ericsson AB 2006-2013. 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/.
+%% 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
%%
-%% 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.
+%% 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%
%%
@@ -24,7 +25,7 @@
list_dir/1, list_dir/2, table/1, table/2,
t/1, tt/1]).
-%% unzipping peicemeal
+%% unzipping piecemeal
-export([openzip_open/1, openzip_open/2,
openzip_get/1, openzip_get/2,
openzip_t/1, openzip_tt/1,
@@ -214,7 +215,9 @@
-type zip_comment() :: #zip_comment{}.
-type zip_file() :: #zip_file{}.
--export_type([create_option/0, filename/0]).
+-opaque handle() :: pid().
+
+-export_type([create_option/0, filename/0, handle/0]).
%% Open a zip archive with options
%%
@@ -500,7 +503,7 @@ do_list_dir(F, Options) ->
-spec(t(Archive) -> ok when
Archive :: file:name() | binary() | ZipHandle,
- ZipHandle :: pid()).
+ ZipHandle :: handle()).
t(F) when is_pid(F) -> zip_t(F);
t(F) when is_record(F, openzip) -> openzip_t(F);
@@ -524,7 +527,7 @@ do_t(F, RawPrint) ->
-spec(tt(Archive) -> ok when
Archive :: file:name() | binary() | ZipHandle,
- ZipHandle :: pid()).
+ ZipHandle :: handle()).
tt(F) when is_pid(F) -> zip_tt(F);
tt(F) when is_record(F, openzip) -> openzip_tt(F);
@@ -1114,15 +1117,19 @@ local_file_header_from_info_method_name(#file_info{mtime = MTime},
file_name_length = length(Name),
extra_field_length = 0}.
+server_init(Parent) ->
+ %% we want to know if our parent dies
+ process_flag(trap_exit, true),
+ server_loop(Parent, not_open).
%% small, simple, stupid zip-archive server
-server_loop(OpenZip) ->
+server_loop(Parent, OpenZip) ->
receive
{From, {open, Archive, Options}} ->
case openzip_open(Archive, Options) of
{ok, NewOpenZip} ->
From ! {self(), {ok, self()}},
- server_loop(NewOpenZip);
+ server_loop(Parent, NewOpenZip);
Error ->
From ! {self(), Error}
end;
@@ -1130,43 +1137,47 @@ server_loop(OpenZip) ->
From ! {self(), openzip_close(OpenZip)};
{From, get} ->
From ! {self(), openzip_get(OpenZip)},
- server_loop(OpenZip);
+ server_loop(Parent, OpenZip);
{From, {get, FileName}} ->
From ! {self(), openzip_get(FileName, OpenZip)},
- server_loop(OpenZip);
+ server_loop(Parent, OpenZip);
{From, list_dir} ->
From ! {self(), openzip_list_dir(OpenZip)},
- server_loop(OpenZip);
+ server_loop(Parent, OpenZip);
{From, {list_dir, Opts}} ->
From ! {self(), openzip_list_dir(OpenZip, Opts)},
- server_loop(OpenZip);
+ server_loop(Parent, OpenZip);
{From, get_state} ->
From ! {self(), OpenZip},
- server_loop(OpenZip);
+ server_loop(Parent, OpenZip);
+ {'EXIT', Parent, Reason} ->
+ _ = openzip_close(OpenZip),
+ exit({parent_died, Reason});
_ ->
{error, bad_msg}
end.
-spec(zip_open(Archive) -> {ok, ZipHandle} | {error, Reason} when
Archive :: file:name() | binary(),
- ZipHandle :: pid(),
+ ZipHandle :: handle(),
Reason :: term()).
zip_open(Archive) -> zip_open(Archive, []).
-spec(zip_open(Archive, Options) -> {ok, ZipHandle} | {error, Reason} when
Archive :: file:name() | binary(),
- ZipHandle :: pid(),
+ ZipHandle :: handle(),
Options :: [Option],
Option :: cooked | memory | {cwd, CWD :: file:filename()},
Reason :: term()).
zip_open(Archive, Options) ->
- Pid = spawn(fun() -> server_loop(not_open) end),
- request(self(), Pid, {open, Archive, Options}).
+ Self = self(),
+ Pid = spawn_link(fun() -> server_init(Self) end),
+ request(Self, Pid, {open, Archive, Options}).
-spec(zip_get(ZipHandle) -> {ok, [Result]} | {error, Reason} when
- ZipHandle :: pid(),
+ ZipHandle :: handle(),
Result :: file:name() | {file:name(), binary()},
Reason :: term()).
@@ -1174,14 +1185,14 @@ zip_get(Pid) when is_pid(Pid) ->
request(self(), Pid, get).
-spec(zip_close(ZipHandle) -> ok | {error, einval} when
- ZipHandle :: pid()).
+ ZipHandle :: handle()).
zip_close(Pid) when is_pid(Pid) ->
request(self(), Pid, close).
-spec(zip_get(FileName, ZipHandle) -> {ok, Result} | {error, Reason} when
FileName :: file:name(),
- ZipHandle :: pid(),
+ ZipHandle :: handle(),
Result :: file:name() | {file:name(), binary()},
Reason :: term()).
@@ -1190,7 +1201,7 @@ zip_get(FileName, Pid) when is_pid(Pid) ->
-spec(zip_list_dir(ZipHandle) -> {ok, Result} | {error, Reason} when
Result :: [zip_comment() | zip_file()],
- ZipHandle :: pid(),
+ ZipHandle :: handle(),
Reason :: term()).
zip_list_dir(Pid) when is_pid(Pid) ->
@@ -1539,57 +1550,33 @@ unix_extra_field_and_var_from_bin(_) ->
%% A pwrite-like function for iolists (used by memory-option)
-split_iolist(B, Pos) when is_binary(B) ->
- split_binary(B, Pos);
-split_iolist(L, Pos) when is_list(L) ->
- splitter([], L, Pos).
-
-splitter(Left, Right, 0) ->
- {Left, Right};
-splitter(Left, [A | Right], RelPos) when is_list(A) or is_binary(A) ->
- Sz = erlang:iolist_size(A),
- case Sz > RelPos of
- true ->
- {Leftx, Rightx} = split_iolist(A, RelPos),
- {[Left | Leftx], [Rightx, Right]};
- _ ->
- splitter([Left | A], Right, RelPos - Sz)
- end;
-splitter(Left, [A | Right], RelPos) when is_integer(A) ->
- splitter([Left, A], Right, RelPos - 1);
-splitter(Left, Right, RelPos) when is_binary(Right) ->
- splitter(Left, [Right], RelPos).
+pwrite_binary(B, Pos, Bin) when byte_size(B) =:= Pos ->
+ append_bins(Bin, B);
+pwrite_binary(B, Pos, Bin) ->
+ erlang:iolist_to_binary(pwrite_iolist(B, Pos, Bin)).
-skip_iolist(B, Pos) when is_binary(B) ->
- case B of
- <<_:Pos/binary, Bin/binary>> -> Bin;
- _ -> <<>>
- end;
-skip_iolist(L, Pos) when is_list(L) ->
- skipper(L, Pos).
-
-skipper(Right, 0) ->
- Right;
-skipper([A | Right], RelPos) when is_list(A) or is_binary(A) ->
- Sz = erlang:iolist_size(A),
- case Sz > RelPos of
- true ->
- Rightx = skip_iolist(A, RelPos),
- [Rightx, Right];
- _ ->
- skip_iolist(Right, RelPos - Sz)
- end;
-skipper([A | Right], RelPos) when is_integer(A) ->
- skip_iolist(Right, RelPos - 1).
+append_bins([Bin|Bins], B) when is_binary(Bin) ->
+ append_bins(Bins, <<B/binary, Bin/binary>>);
+append_bins([List|Bins], B) when is_list(List) ->
+ append_bins(Bins, append_bins(List, B));
+append_bins(Bin, B) when is_binary(Bin) ->
+ <<B/binary, Bin/binary>>;
+append_bins([_|_]=List, B) ->
+ <<B/binary, (iolist_to_binary(List))/binary>>;
+append_bins([], B) ->
+ B.
-pwrite_iolist(Iolist, Pos, Bin) ->
- {Left, Right} = split_iolist(Iolist, Pos),
+pwrite_iolist(B, Pos, Bin) ->
+ {Left, Right} = split_binary(B, Pos),
Sz = erlang:iolist_size(Bin),
- R = skip_iolist(Right, Sz),
+ R = skip_bin(Right, Sz),
[Left, Bin | R].
-pwrite_binary(B, Pos, Bin) ->
- erlang:iolist_to_binary(pwrite_iolist(B, Pos, Bin)).
+skip_bin(B, Pos) when is_binary(B) ->
+ case B of
+ <<_:Pos/binary, Bin/binary>> -> Bin;
+ _ -> <<>>
+ end.
%% ZIP header manipulations
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-30 00:17:09 +0000