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-rw-r--r--erts/preloaded/src/prim_file.erl224
1 files changed, 154 insertions, 70 deletions
diff --git a/erts/preloaded/src/prim_file.erl b/erts/preloaded/src/prim_file.erl
index 7316e0be99..36cbe329e8 100644
--- a/erts/preloaded/src/prim_file.erl
+++ b/erts/preloaded/src/prim_file.erl
@@ -45,13 +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]).
@@ -725,16 +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}
@@ -747,38 +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}
@@ -822,16 +862,32 @@ 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_int(Port, Link) ->
- drv_command(Port, [?FILE_LSTAT, pathname(Link)]).
+read_link_info(Link, Opts) ->
+ read_link_info_int({?DRV, [binary]}, Link, plgv(time, Opts, local)).
+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}
list_dir(Dir) ->
@@ -1075,7 +1131,7 @@ 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)}};
@@ -1129,27 +1185,37 @@ translate_response(?FILE_RESP_ALL_DATA, 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;
@@ -1162,24 +1228,22 @@ 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.
@@ -1192,11 +1256,6 @@ 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>>) ->
@@ -1275,3 +1334,28 @@ 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 2024-12-01 01:27:24 +0000