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-rw-r--r--erts/preloaded/src/prim_file.erl345
1 files changed, 249 insertions, 96 deletions
diff --git a/erts/preloaded/src/prim_file.erl b/erts/preloaded/src/prim_file.erl
index 8e0790e74a..0fc56c8c8e 100644
--- a/erts/preloaded/src/prim_file.erl
+++ b/erts/preloaded/src/prim_file.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2000-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2012. 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
@@ -26,7 +26,8 @@
%% Generic file contents operations
-export([open/2, close/1, datasync/1, sync/1, advise/4, position/2, truncate/1,
- write/2, pwrite/2, pwrite/3, read/2, read_line/1, pread/2, pread/3, copy/3]).
+ write/2, pwrite/2, pwrite/3, read/2, read_line/1, pread/2, pread/3,
+ copy/3, sendfile/10]).
%% Specialized file operations
-export([open/1, open/3]).
@@ -44,13 +45,13 @@
rename/2, rename/3,
make_dir/1, make_dir/2,
del_dir/1, del_dir/2,
- read_file_info/1, read_file_info/2,
+ read_file_info/1, read_file_info/2, read_file_info/3,
altname/1, altname/2,
- write_file_info/2, write_file_info/3,
+ write_file_info/2, write_file_info/3, write_file_info/4,
make_link/2, make_link/3,
make_symlink/2, make_symlink/3,
read_link/1, read_link/2,
- read_link_info/1, read_link_info/2,
+ read_link_info/1, read_link_info/2, read_link_info/3,
list_dir/1, list_dir/2]).
%% How to start and stop the ?DRV port.
-export([start/0, stop/1]).
@@ -63,7 +64,7 @@
-include("file.hrl").
--define(DRV, efile).
+-define(DRV, "efile").
-define(FD_DRV, "efile").
-define(LARGEFILESIZE, (1 bsl 63)).
@@ -98,6 +99,7 @@
-define(FILE_READ_LINE, 29).
-define(FILE_FDATASYNC, 30).
-define(FILE_ADVISE, 31).
+-define(FILE_SENDFILE, 32).
%% Driver responses
-define(FILE_RESP_OK, 0).
@@ -111,6 +113,7 @@
-define(FILE_RESP_EOF, 8).
-define(FILE_RESP_FNAME, 9).
-define(FILE_RESP_ALL_DATA, 10).
+-define(FILE_RESP_LFNAME, 11).
%% Open modes for the driver's open function.
-define(EFILE_MODE_READ, 1).
@@ -265,7 +268,7 @@ advise(#file_descriptor{module = ?MODULE, data = {Port, _}},
%% Returns {error, Reason} | ok.
write(#file_descriptor{module = ?MODULE, data = {Port, _}}, Bytes) ->
- case drv_command(Port, [?FILE_WRITE,Bytes]) of
+ case drv_command_nt(Port, [?FILE_WRITE,erlang:dt_prepend_vm_tag_data(Bytes)],undefined) of
{ok, _Size} ->
ok;
Error ->
@@ -280,8 +283,8 @@ pwrite(#file_descriptor{module = ?MODULE, data = {Port, _}}, L)
pwrite_int(_, [], 0, [], []) ->
ok;
pwrite_int(Port, [], N, Spec, Data) ->
- Header = list_to_binary([<<?FILE_PWRITEV, N:32>> | reverse(Spec)]),
- case drv_command_raw(Port, [Header | reverse(Data)]) of
+ Header = list_to_binary([?FILE_PWRITEV, erlang:dt_prepend_vm_tag_data(<<N:32>>) | reverse(Spec)]),
+ case drv_command_nt(Port, [Header | reverse(Data)], undefined) of
{ok, _Size} ->
ok;
Error ->
@@ -374,7 +377,7 @@ read(#file_descriptor{module = ?MODULE, data = {Port, _}}, Size)
{ok, Data};
{error, enomem} ->
%% Garbage collecting here might help if
- %% the current processes has some old binaries left.
+ %% the current processes have some old binaries left.
erlang:garbage_collect(),
case drv_command(Port, <<?FILE_READ, Size:64>>) of
{ok, {0, _Data}} when Size =/= 0 ->
@@ -399,7 +402,7 @@ pread(#file_descriptor{module = ?MODULE, data = {Port, _}}, L)
pread_int(_, [], 0, []) ->
{ok, []};
pread_int(Port, [], N, Spec) ->
- drv_command(Port, [<<?FILE_PREADV, 0:32, N:32>> | reverse(Spec)]);
+ drv_command_nt(Port, [?FILE_PREADV, erlang:dt_prepend_vm_tag_data(<<0:32, N:32>>) | reverse(Spec)],undefined);
pread_int(Port, [{Offs, Size} | T], N, Spec)
when is_integer(Offs), is_integer(Size), 0 =< Size ->
if
@@ -420,9 +423,9 @@ pread(#file_descriptor{module = ?MODULE, data = {Port, _}}, Offs, Size)
if
-(?LARGEFILESIZE) =< Offs, Offs < ?LARGEFILESIZE,
Size < ?LARGEFILESIZE ->
- case drv_command(Port,
- <<?FILE_PREADV, 0:32, 1:32,
- Offs:64/signed, Size:64>>) of
+ case drv_command_nt(Port,
+ [?FILE_PREADV, erlang:dt_prepend_vm_tag_data(<<0:32, 1:32,
+ Offs:64/signed, Size:64>>)], undefined) of
{ok, [eof]} ->
eof;
{ok, [Data]} ->
@@ -536,7 +539,31 @@ write_file(File, Bin) when (is_list(File) orelse is_binary(File)) ->
end;
write_file(_, _) ->
{error, badarg}.
-
+
+
+%% Returns {error, Reason} | {ok, BytesCopied}
+%sendfile(_,_,_,_,_,_,_,_,_,_) ->
+% {error, enotsup};
+sendfile(#file_descriptor{module = ?MODULE, data = {Port, _}},
+ Dest, Offset, Bytes, _ChunkSize, Headers, Trailers,
+ _Nodiskio, _MNowait, _Sync) ->
+ case erlang:port_get_data(Dest) of
+ Data when Data == inet_tcp; Data == inet6_tcp ->
+ ok = inet:lock_socket(Dest,true),
+ {ok, DestFD} = prim_inet:getfd(Dest),
+ try drv_command(Port, [<<?FILE_SENDFILE, DestFD:32,
+ 0:8,
+ Offset:64/unsigned,
+ Bytes:64/unsigned,
+ (iolist_size(Headers)):32/unsigned,
+ (iolist_size(Trailers)):32/unsigned>>,
+ Headers,Trailers])
+ after
+ ok = inet:lock_socket(Dest,false)
+ end;
+ _Else ->
+ {error,badarg}
+ end.
%%%-----------------------------------------------------------------
@@ -549,7 +576,7 @@ write_file(_, _) ->
%% Returns {ok, Port}, the Port should be used as first argument in all
%% the following functions. Returns {error, Reason} upon failure.
start() ->
- try erlang:open_port({spawn, atom_to_list(?DRV)}, [binary]) of
+ try erlang:open_port({spawn, ?DRV}, [binary]) of
Port ->
{ok, Port}
catch
@@ -698,16 +725,33 @@ del_dir_int(Port, Dir) ->
-%% read_file_info/{1,2}
+%% read_file_info/{1,2,3}
read_file_info(File) ->
- read_file_info_int({?DRV, [binary]}, File).
+ read_file_info_int({?DRV, [binary]}, File, local).
read_file_info(Port, File) when is_port(Port) ->
- read_file_info_int(Port, File).
+ read_file_info_int(Port, File, local);
+read_file_info(File, Opts) ->
+ read_file_info_int({?DRV, [binary]}, File, plgv(time, Opts, local)).
+
+read_file_info(Port, File, Opts) when is_port(Port) ->
+ read_file_info_int(Port, File, plgv(time, Opts, local)).
+
+read_file_info_int(Port, File, TimeType) ->
+ try
+ case drv_command(Port, [?FILE_FSTAT, pathname(File)]) of
+ {ok, FI} -> {ok, FI#file_info{
+ ctime = from_seconds(FI#file_info.ctime, TimeType),
+ mtime = from_seconds(FI#file_info.mtime, TimeType),
+ atime = from_seconds(FI#file_info.atime, TimeType)
+ }};
+ Error -> Error
+ end
+ catch
+ error:_ -> {error, badarg}
+ end.
-read_file_info_int(Port, File) ->
- drv_command(Port, [?FILE_FSTAT, pathname(File)]).
%% altname/{1,2}
@@ -720,38 +764,61 @@ altname(Port, File) when is_port(Port) ->
altname_int(Port, File) ->
drv_command(Port, [?FILE_ALTNAME, pathname(File)]).
-%% write_file_info/{2,3}
+%% write_file_info/{2,3,4}
write_file_info(File, Info) ->
- write_file_info_int({?DRV, [binary]}, File, Info).
+ write_file_info_int({?DRV, [binary]}, File, Info, local).
write_file_info(Port, File, Info) when is_port(Port) ->
- write_file_info_int(Port, File, Info).
+ write_file_info_int(Port, File, Info, local);
+write_file_info(File, Info, Opts) ->
+ write_file_info_int({?DRV, [binary]}, File, Info, plgv(time, Opts, local)).
+
+write_file_info(Port, File, Info, Opts) when is_port(Port) ->
+ write_file_info_int(Port, File, Info, plgv(time, Opts, local)).
-write_file_info_int(Port,
- File,
+write_file_info_int(Port, File,
#file_info{mode=Mode,
uid=Uid,
gid=Gid,
atime=Atime0,
mtime=Mtime0,
- ctime=Ctime}) ->
- {Atime, Mtime} =
- case {Atime0, Mtime0} of
- {undefined, Mtime0} -> {erlang:localtime(), Mtime0};
- {Atime0, undefined} -> {Atime0, Atime0};
- Complete -> Complete
- end,
- drv_command(Port, [?FILE_WRITE_INFO,
- int_to_bytes(Mode),
- int_to_bytes(Uid),
- int_to_bytes(Gid),
- date_to_bytes(Atime),
- date_to_bytes(Mtime),
- date_to_bytes(Ctime),
- pathname(File)]).
+ ctime=Ctime0},
+ TimeType) ->
+
+ % Atime and/or Mtime might be undefined
+ % - use localtime() for atime, if atime is undefined
+ % - use atime as mtime if mtime is undefined
+ % - use mtime as ctime if ctime is undefined
+
+ try
+ Atime = file_info_validate_atime(Atime0, TimeType),
+ Mtime = file_info_validate_mtime(Mtime0, Atime),
+ Ctime = file_info_validate_ctime(Ctime0, Mtime),
+
+ drv_command(Port, [?FILE_WRITE_INFO,
+ int_to_int32bytes(Mode),
+ int_to_int32bytes(Uid),
+ int_to_int32bytes(Gid),
+ int_to_int64bytes(to_seconds(Atime, TimeType)),
+ int_to_int64bytes(to_seconds(Mtime, TimeType)),
+ int_to_int64bytes(to_seconds(Ctime, TimeType)),
+ pathname(File)])
+ catch
+ error:_ -> {error, badarg}
+ end.
+file_info_validate_atime(Atime, _) when Atime =/= undefined -> Atime;
+file_info_validate_atime(undefined, local) -> erlang:localtime();
+file_info_validate_atime(undefined, universal) -> erlang:universaltime();
+file_info_validate_atime(undefined, posix) -> erlang:universaltime_to_posixtime(erlang:universaltime()).
+
+file_info_validate_mtime(undefined, Atime) -> Atime;
+file_info_validate_mtime(Mtime, _) -> Mtime.
+
+file_info_validate_ctime(undefined, Mtime) -> Mtime;
+file_info_validate_ctime(Ctime, _) -> Ctime.
%% make_link/{2,3}
@@ -795,15 +862,31 @@ read_link_int(Port, Link) ->
%% read_link_info/{2,3}
read_link_info(Link) ->
- read_link_info_int({?DRV, [binary]}, Link).
+ read_link_info_int({?DRV, [binary]}, Link, local).
read_link_info(Port, Link) when is_port(Port) ->
- read_link_info_int(Port, Link).
+ read_link_info_int(Port, Link, local);
+
+read_link_info(Link, Opts) ->
+ read_link_info_int({?DRV, [binary]}, Link, plgv(time, Opts, local)).
-read_link_info_int(Port, Link) ->
- drv_command(Port, [?FILE_LSTAT, pathname(Link)]).
+read_link_info(Port, Link, Opts) when is_port(Port) ->
+ read_link_info_int(Port, Link, plgv(time, Opts, local)).
+read_link_info_int(Port, Link, TimeType) ->
+ try
+ case drv_command(Port, [?FILE_LSTAT, pathname(Link)]) of
+ {ok, FI} -> {ok, FI#file_info{
+ ctime = from_seconds(FI#file_info.ctime, TimeType),
+ mtime = from_seconds(FI#file_info.mtime, TimeType),
+ atime = from_seconds(FI#file_info.atime, TimeType)
+ }};
+ Error -> Error
+ end
+ catch
+ error:_ -> {error, badarg}
+ end.
%% list_dir/{1,2}
@@ -824,7 +907,7 @@ list_dir_int(Port, Dir) ->
%% Opens a driver port and converts any problems into {error, emfile}.
-%% Returns {ok, Port} when succesful.
+%% Returns {ok, Port} when successful.
drv_open(Driver, Portopts) ->
try erlang:open_port({spawn, Driver}, Portopts) of
@@ -840,12 +923,17 @@ drv_open(Driver, Portopts) ->
%% Closes a port in a safe way. Returns ok.
drv_close(Port) ->
- try erlang:port_close(Port) catch error:_ -> ok end,
- receive %% Ugly workaround in case the caller==owner traps exits
- {'EXIT', Port, _Reason} ->
- ok
- after 0 ->
- ok
+ Save = erlang:dt_spread_tag(false),
+ try
+ try erlang:port_close(Port) catch error:_ -> ok end,
+ receive %% Ugly workaround in case the caller==owner traps exits
+ {'EXIT', Port, _Reason} ->
+ ok
+ after 0 ->
+ ok
+ end
+ after
+ erlang:dt_restore_tag(Save)
end.
@@ -855,9 +943,6 @@ drv_close(Port) ->
%% then closed after the result has been received.
%% Returns {ok, Result} or {error, Reason}.
-drv_command_raw(Port, Command) ->
- drv_command(Port, Command, false, undefined).
-
drv_command(Port, Command) ->
drv_command(Port, Command, undefined).
@@ -873,7 +958,8 @@ drv_command(Port, Command, R) ->
end.
drv_command(Port, Command, Validated, R) when is_port(Port) ->
- try erlang:port_command(Port, Command) of
+ Save = erlang:dt_spread_tag(false),
+ try erlang:port_command(Port, erlang:dt_append_vm_tag_data(Command)) of
true ->
drv_get_response(Port, R)
catch
@@ -892,6 +978,8 @@ drv_command(Port, Command, Validated, R) when is_port(Port) ->
end;
error:Reason ->
{error, Reason}
+ after
+ erlang:dt_restore_tag(Save)
end;
drv_command({Driver, Portopts}, Command, Validated, R) ->
case drv_open(Driver, Portopts) of
@@ -902,6 +990,25 @@ drv_command({Driver, Portopts}, Command, Validated, R) ->
Error ->
Error
end.
+drv_command_nt(Port, Command, R) when is_port(Port) ->
+ Save = erlang:dt_spread_tag(false),
+ try erlang:port_command(Port, Command) of
+ true ->
+ drv_get_response(Port, R)
+ catch
+ error:badarg ->
+ try erlang:iolist_size(Command) of
+ _ -> % Valid
+ {error, einval}
+ catch
+ error:_ ->
+ {error, badarg}
+ end;
+ error:Reason ->
+ {error, Reason}
+ after
+ erlang:dt_restore_tag(Save)
+ end.
@@ -914,6 +1021,8 @@ drv_get_response(Port, R) when is_list(R) ->
{ok, R};
{ok, Name} ->
drv_get_response(Port, [Name|R]);
+ {append, Names} ->
+ drv_get_response(Port, append(Names, R));
Error ->
Error
end;
@@ -938,9 +1047,11 @@ drv_get_response(Port) ->
%%%-----------------------------------------------------------------
%%% Utility functions.
+append([I | Is], R) when is_list(R) -> append(Is, [I | R]);
+append([], R) -> R.
-%% Converts a list of mode atoms into an mode word for the driver.
+%% Converts a list of mode atoms into a mode word for the driver.
%% Returns {Mode, Portopts, Setopts} where Portopts is a list of
%% options for erlang:open_port/2 and Setopts is a list of
%% setopt commands to send to the port, or error Reason upon failure.
@@ -1044,7 +1155,7 @@ translate_response(?FILE_RESP_DATA, List) ->
{_N, _Data} = ND = get_uint64(List),
{ok, ND};
translate_response(?FILE_RESP_INFO, List) when is_list(List) ->
- {ok, transform_info_ints(get_uint32s(List))};
+ {ok, transform_info(List)};
translate_response(?FILE_RESP_NUMERR, L0) ->
{N, L1} = get_uint64(L0),
{error, {N, list_to_atom(L1)}};
@@ -1067,7 +1178,7 @@ translate_response(?FILE_RESP_N2DATA,
{ok, {Size, Offset, D}};
translate_response(?FILE_RESP_N2DATA = X, L0) when is_list(L0) ->
{Offset, L1} = get_uint64(L0),
- {ReadSize, L2} = get_uint64(L1),
+ {ReadSize, L2} = get_uint64(L1),
{Size, L3} = get_uint64(L2),
case {ReadSize, L3} of
{0, []} ->
@@ -1087,32 +1198,48 @@ translate_response(?FILE_RESP_FNAME, Data) when is_binary(Data) ->
{ok, prim_file:internal_native2name(Data)};
translate_response(?FILE_RESP_FNAME, Data) ->
{ok, Data};
+translate_response(?FILE_RESP_LFNAME, []) ->
+ ok;
+translate_response(?FILE_RESP_LFNAME, Data) when is_binary(Data) ->
+ {append, transform_lfname(Data)};
+translate_response(?FILE_RESP_LFNAME, Data) ->
+ {append, transform_lfname(Data)};
translate_response(?FILE_RESP_ALL_DATA, Data) ->
{ok, Data};
translate_response(X, Data) ->
{error, {bad_response_from_port, [X | Data]}}.
-transform_info_ints(Ints) ->
- [HighSize, LowSize, Type|Tail0] = Ints,
- Size = HighSize * 16#100000000 + LowSize,
- [Ay, Am, Ad, Ah, Ami, As|Tail1] = Tail0,
- [My, Mm, Md, Mh, Mmi, Ms|Tail2] = Tail1,
- [Cy, Cm, Cd, Ch, Cmi, Cs|Tail3] = Tail2,
- [Mode, Links, Major, Minor, Inode, Uid, Gid, Access] = Tail3,
+transform_info([
+ Hsize1, Hsize2, Hsize3, Hsize4,
+ Lsize1, Lsize2, Lsize3, Lsize4,
+ Type1, Type2, Type3, Type4,
+ Atime1, Atime2, Atime3, Atime4, Atime5, Atime6, Atime7, Atime8,
+ Mtime1, Mtime2, Mtime3, Mtime4, Mtime5, Mtime6, Mtime7, Mtime8,
+ Ctime1, Ctime2, Ctime3, Ctime4, Ctime5, Ctime6, Ctime7, Ctime8,
+ Mode1, Mode2, Mode3, Mode4,
+ Links1, Links2, Links3, Links4,
+ Major1, Major2, Major3, Major4,
+ Minor1, Minor2, Minor3, Minor4,
+ Inode1, Inode2, Inode3, Inode4,
+ Uid1, Uid2, Uid3, Uid4,
+ Gid1, Gid2, Gid3, Gid4,
+ Access1,Access2,Access3,Access4]) ->
#file_info {
- size = Size,
- type = file_type(Type),
- access = file_access(Access),
- atime = {{Ay, Am, Ad}, {Ah, Ami, As}},
- mtime = {{My, Mm, Md}, {Mh, Mmi, Ms}},
- ctime = {{Cy, Cm, Cd}, {Ch, Cmi, Cs}},
- mode = Mode,
- links = Links,
- major_device = Major,
- minor_device = Minor,
- inode = Inode,
- uid = Uid,
- gid = Gid}.
+ size = uint32(Hsize1,Hsize2,Hsize3,Hsize4)*16#100000000 + uint32(Lsize1,Lsize2,Lsize3,Lsize4),
+ type = file_type(uint32(Type1,Type2,Type3,Type4)),
+ access = file_access(uint32(Access1,Access2,Access3,Access4)),
+ atime = sint64(Atime1, Atime2, Atime3, Atime4, Atime5, Atime6, Atime7, Atime8),
+ mtime = sint64(Mtime1, Mtime2, Mtime3, Mtime4, Mtime5, Mtime6, Mtime7, Mtime8),
+ ctime = sint64(Ctime1, Ctime2, Ctime3, Ctime4, Ctime5, Ctime6, Ctime7, Ctime8),
+ mode = uint32(Mode1,Mode2,Mode3,Mode4),
+ links = uint32(Links1,Links2,Links3,Links4),
+ major_device = uint32(Major1,Major2,Major3,Major4),
+ minor_device = uint32(Minor1,Minor2,Minor3,Minor4),
+ inode = uint32(Inode1,Inode2,Inode3,Inode4),
+ uid = uint32(Uid1,Uid2,Uid3,Uid4),
+ gid = uint32(Gid1,Gid2,Gid3,Gid4)
+ }.
+
file_type(1) -> device;
file_type(2) -> directory;
@@ -1125,24 +1252,22 @@ file_access(1) -> write;
file_access(2) -> read;
file_access(3) -> read_write.
-int_to_bytes(Int) when is_integer(Int) ->
+int_to_int32bytes(Int) when is_integer(Int) ->
<<Int:32>>;
-int_to_bytes(undefined) ->
+int_to_int32bytes(undefined) ->
<<-1:32>>.
-date_to_bytes(undefined) ->
- <<-1:32, -1:32, -1:32, -1:32, -1:32, -1:32>>;
-date_to_bytes({{Y, Mon, D}, {H, Min, S}}) ->
- <<Y:32, Mon:32, D:32, H:32, Min:32, S:32>>.
+int_to_int64bytes(Int) when is_integer(Int) ->
+ <<Int:64/signed>>.
-%% uint64([[X1, X2, X3, X4] = Y1 | [X5, X6, X7, X8] = Y2]) ->
-%% (uint32(Y1) bsl 32) bor uint32(Y2).
-%% uint64(X1, X2, X3, X4, X5, X6, X7, X8) ->
-%% (uint32(X1, X2, X3, X4) bsl 32) bor uint32(X5, X6, X7, X8).
+sint64(I1,I2,I3,I4,I5,I6,I7,I8) when I1 > 127 ->
+ ((I1 bsl 56) bor (I2 bsl 48) bor (I3 bsl 40) bor (I4 bsl 32) bor
+ (I5 bsl 24) bor (I6 bsl 16) bor (I7 bsl 8) bor I8) - (1 bsl 64);
+sint64(I1,I2,I3,I4,I5,I6,I7,I8) ->
+ ((I1 bsl 56) bor (I2 bsl 48) bor (I3 bsl 40) bor (I4 bsl 32) bor
+ (I5 bsl 24) bor (I6 bsl 16) bor (I7 bsl 8) bor I8).
-%% uint32([X1,X2,X3,X4]) ->
-%% (X1 bsl 24) bor (X2 bsl 16) bor (X3 bsl 8) bor X4.
uint32(X1,X2,X3,X4) ->
(X1 bsl 24) bor (X2 bsl 16) bor (X3 bsl 8) bor X4.
@@ -1155,11 +1280,6 @@ get_uint64(L0) ->
get_uint32([X1,X2,X3,X4|List]) ->
{(((((X1 bsl 8) bor X2) bsl 8) bor X3) bsl 8) bor X4, List}.
-get_uint32s([X1,X2,X3,X4|Tail]) ->
- [uint32(X1,X2,X3,X4) | get_uint32s(Tail)];
-get_uint32s([]) -> [].
-
-
%% Binary mode
transform_ldata(<<0:32, 0:32>>) ->
@@ -1199,6 +1319,14 @@ transform_ldata(0, List, [Size | Sizes], R) ->
{Front, Rear} = lists_split(List, Size),
transform_ldata(0, Rear, Sizes, [Front | R]).
+transform_lfname(<<>>) -> [];
+transform_lfname(<<L:16, Name:L/binary, Names/binary>>) ->
+ [ prim_file:internal_native2name(Name) | transform_lfname(Names)];
+transform_lfname([]) -> [];
+transform_lfname([L1,L2|Names]) ->
+ L = (L1 bsl 8) bor L2,
+ {Name, Rest} = lists_split(Names, L),
+ [Name | transform_lfname(Rest)].
lists_split(List, 0) when is_list(List) ->
@@ -1230,3 +1358,28 @@ reverse(L, T) -> lists:reverse(L, T).
% in list_to_binary, which is caught and generates the {error,badarg} return
pathname(File) ->
(catch prim_file:internal_name2native(File)).
+
+
+%% proplist:get_value/3
+plgv(K, [{K, V}|_], _) -> V;
+plgv(K, [_|KVs], D) -> plgv(K, KVs, D);
+plgv(_, [], D) -> D.
+
+%%
+%% We don't actually want this here
+%% We want to use posix time in all prim but erl_prim_loader makes that tricky
+%% It is probably needed to redo the whole erl_prim_loader
+
+from_seconds(Seconds, posix) when is_integer(Seconds) ->
+ Seconds;
+from_seconds(Seconds, universal) when is_integer(Seconds) ->
+ erlang:posixtime_to_universaltime(Seconds);
+from_seconds(Seconds, local) when is_integer(Seconds) ->
+ erlang:universaltime_to_localtime(erlang:posixtime_to_universaltime(Seconds)).
+
+to_seconds(Seconds, posix) when is_integer(Seconds) ->
+ Seconds;
+to_seconds({_,_} = Datetime, universal) ->
+ erlang:universaltime_to_posixtime(Datetime);
+to_seconds({_,_} = Datetime, local) ->
+ erlang:universaltime_to_posixtime(erlang:localtime_to_universaltime(Datetime)).
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-17 09:51:54 +0000