From e7b0c8c6e72d8b0b60eb00e7e66fea2769963dc2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= Date: Mon, 27 Jun 2011 11:17:04 +0200 Subject: Teach file.erl datetime conversions --- lib/kernel/src/file.erl | 73 +++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 68 insertions(+), 5 deletions(-) (limited to 'lib/kernel/src/file.erl') diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl index 0b0f91d86a..bdafcf2cfb 100644 --- a/lib/kernel/src/file.erl +++ b/lib/kernel/src/file.erl @@ -28,9 +28,10 @@ %% File system and metadata. -export([get_cwd/0, get_cwd/1, set_cwd/1, delete/1, rename/2, make_dir/1, del_dir/1, list_dir/1, - read_file_info/1, write_file_info/2, + read_file_info/1, read_file_info/2, + write_file_info/2, write_file_info/3, altname/1, - read_link_info/1, read_link/1, + read_link_info/1, read_link_info/2, read_link/1, make_link/2, make_symlink/2, read_file/1, write_file/2, write_file/3]). %% Specialized @@ -212,7 +213,10 @@ del_dir(Name) -> Reason :: posix() | badarg. read_file_info(Name) -> - check_and_call(read_file_info, [file_name(Name)]). + file_info_time(local, check_and_call(read_file_info, [file_name(Name)])). + +read_file_info(Name, Opts) when is_list(Opts) -> + file_info_time(proplists:get_value(time, Opts, local), check_and_call(read_file_info, [file_name(Name)])). -spec altname(Name :: name()) -> any(). @@ -225,7 +229,10 @@ altname(Name) -> Reason :: posix() | badarg. read_link_info(Name) -> - check_and_call(read_link_info, [file_name(Name)]). + read_link_info(Name, [{time, local}]). + +read_link_info(Name, Opts) when is_list(Opts) -> + file_info_time(proplists:get_value(time, Opts, local), check_and_call(read_link_info, [file_name(Name)])). -spec read_link(Name) -> {ok, Filename} | {error, Reason} when Name :: name(), @@ -241,7 +248,10 @@ read_link(Name) -> Reason :: posix() | badarg. write_file_info(Name, Info = #file_info{}) -> - check_and_call(write_file_info, [file_name(Name), Info]). + check_and_call(write_file_info, [file_name(Name), file_info_epochs(local, Info)]). + +write_file_info(Name, Info = #file_info{}, Opts) when is_list(Opts) -> + check_and_call(write_file_info, [file_name(Name), file_info_epochs(proplists:get_value(time, Opts, local), Info)]). -spec list_dir(Dir) -> {ok, Filenames} | {error, Reason} when Dir :: name(), @@ -1321,6 +1331,59 @@ fname_join(Dir, Name) -> %%%----------------------------------------------------------------- %%% Utility functions. +%% convert file times. +%% all times from prime_file (and file_server) are in unix epochs + +%% from_epochs +file_info_time(epoch, {ok, FI}) -> FI; +file_info_time(local, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> + {ok, FI#file_info{ + atime = time_epochs_to_local(Atime), + ctime = time_epochs_to_local(Ctime), + mtime = time_epochs_to_local(Mtime) + } + }; +file_info_time(utc, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> + {ok, FI#file_info{ + atime = time_epochs_to_utc(Atime), + ctime = time_epochs_to_utc(Ctime), + mtime = time_epochs_to_utc(Mtime) + } + }; +file_info_time(_, Error) -> Error. + +%% from_epochs +file_info_epochs(epoch, FI) -> FI; +file_info_epochs(local, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI) -> + FI#file_info{ + atime = time_local_to_epochs(Atime), + ctime = time_local_to_epochs(Ctime), + mtime = time_local_to_epochs(Mtime) + }; +file_info_epochs(utc, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> + FI#file_info{ + atime = time_utc_to_epochs(Atime), + ctime = time_utc_to_epochs(Ctime), + mtime = time_utc_to_epochs(Mtime) + }. + + +-define(DAYS_FROM_0_TO_1970, 719528). +-define(SECONDS_PER_DAY, 86400). + +time_epochs_to_utc(Seconds) when is_integer(Seconds) -> + calendar:gregorian_seconds_to_datetime(Seconds + ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970). + +time_epochs_to_local(Seconds) when is_integer(Seconds) -> + erlang:universaltime_to_localtime(calendar:gregorian_seconds_to_datetime(Seconds + ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970)). + +time_utc_to_epochs({_, _} = Datetime) -> + calendar:datetime_to_gregorian_seconds(Datetime) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970. + +time_local_to_epochs({_, _} = Datetime) -> + calendar:datetime_to_gregorian_seconds(erlang:localtime_to_universaltime(Datetime)) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970. + + %% file_name(FileName) %% Generates a flat file name from a deep list of atoms and %% characters (integers). -- cgit v1.2.3 From c489db32a796be2d7de7a683544c333a77d917b8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= Date: Wed, 29 Jun 2011 15:20:38 +0200 Subject: Fix undefined datetimes --- lib/kernel/src/file.erl | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'lib/kernel/src/file.erl') diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl index bdafcf2cfb..8f027f5a40 100644 --- a/lib/kernel/src/file.erl +++ b/lib/kernel/src/file.erl @@ -1378,10 +1378,15 @@ time_epochs_to_local(Seconds) when is_integer(Seconds) -> erlang:universaltime_to_localtime(calendar:gregorian_seconds_to_datetime(Seconds + ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970)). time_utc_to_epochs({_, _} = Datetime) -> - calendar:datetime_to_gregorian_seconds(Datetime) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970. + calendar:datetime_to_gregorian_seconds(Datetime) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970; +time_utc_to_epochs(undefined) -> + time_utc_to_epochs(erlang:universaltime()). + time_local_to_epochs({_, _} = Datetime) -> - calendar:datetime_to_gregorian_seconds(erlang:localtime_to_universaltime(Datetime)) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970. + calendar:datetime_to_gregorian_seconds(erlang:localtime_to_universaltime(Datetime)) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970; +time_local_to_epochs(undefined) -> + time_utc_to_epochs(erlang:universaltime()). %% file_name(FileName) -- cgit v1.2.3 From f21b72789018cf5ac581d851685162194b049d11 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= Date: Wed, 30 Nov 2011 19:08:38 +0100 Subject: stdlib: Fix return file_info on epoch --- lib/kernel/src/file.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'lib/kernel/src/file.erl') diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl index 8f027f5a40..dafd2c6909 100644 --- a/lib/kernel/src/file.erl +++ b/lib/kernel/src/file.erl @@ -1335,7 +1335,7 @@ fname_join(Dir, Name) -> %% all times from prime_file (and file_server) are in unix epochs %% from_epochs -file_info_time(epoch, {ok, FI}) -> FI; +file_info_time(epoch, {ok, FI} = R) -> R; file_info_time(local, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> {ok, FI#file_info{ atime = time_epochs_to_local(Atime), -- cgit v1.2.3 From f356bb25df7fe4d6a20d7427b4b4249e9219157c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= Date: Fri, 18 Nov 2011 18:02:12 +0100 Subject: Move datetime into prim_file --- lib/kernel/src/file.erl | 135 +++++++++++++++++++++++++++--------------------- 1 file changed, 75 insertions(+), 60 deletions(-) (limited to 'lib/kernel/src/file.erl') diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl index dafd2c6909..d8ade07336 100644 --- a/lib/kernel/src/file.erl +++ b/lib/kernel/src/file.erl @@ -31,7 +31,8 @@ read_file_info/1, read_file_info/2, write_file_info/2, write_file_info/3, altname/1, - read_link_info/1, read_link_info/2, read_link/1, + read_link_info/1, read_link_info/2, + read_link/1, make_link/2, make_symlink/2, read_file/1, write_file/2, write_file/3]). %% Specialized @@ -213,10 +214,16 @@ del_dir(Name) -> Reason :: posix() | badarg. read_file_info(Name) -> - file_info_time(local, check_and_call(read_file_info, [file_name(Name)])). + check_and_call(read_file_info, [file_name(Name)]). + +-spec read_file_info(Filename, Opts) -> {ok, FileInfo} | {error, Reason} when + Filename :: name(), + Opts :: list(), + FileInfo :: file_info(), + Reason :: posix() | badarg. read_file_info(Name, Opts) when is_list(Opts) -> - file_info_time(proplists:get_value(time, Opts, local), check_and_call(read_file_info, [file_name(Name)])). + check_and_call(read_file_info, [file_name(Name), Opts]). -spec altname(Name :: name()) -> any(). @@ -229,10 +236,11 @@ altname(Name) -> Reason :: posix() | badarg. read_link_info(Name) -> - read_link_info(Name, [{time, local}]). + check_and_call(read_link_info, [file_name(Name)]). read_link_info(Name, Opts) when is_list(Opts) -> - file_info_time(proplists:get_value(time, Opts, local), check_and_call(read_link_info, [file_name(Name)])). + check_and_call(read_link_info, [file_name(Name),Opts]). + -spec read_link(Name) -> {ok, Filename} | {error, Reason} when Name :: name(), @@ -248,10 +256,17 @@ read_link(Name) -> Reason :: posix() | badarg. write_file_info(Name, Info = #file_info{}) -> - check_and_call(write_file_info, [file_name(Name), file_info_epochs(local, Info)]). + check_and_call(write_file_info, [file_name(Name), Info]). + +-spec write_file_info(Filename, FileInfo, Opts) -> ok | {error, Reason} when + Filename :: name(), + Opts :: list(), + FileInfo :: file_info(), + Reason :: posix() | badarg. + write_file_info(Name, Info = #file_info{}, Opts) when is_list(Opts) -> - check_and_call(write_file_info, [file_name(Name), file_info_epochs(proplists:get_value(time, Opts, local), Info)]). + check_and_call(write_file_info, [file_name(Name), Info, Opts]). -spec list_dir(Dir) -> {ok, Filenames} | {error, Reason} when Dir :: name(), @@ -1335,59 +1350,59 @@ fname_join(Dir, Name) -> %% all times from prime_file (and file_server) are in unix epochs %% from_epochs -file_info_time(epoch, {ok, FI} = R) -> R; -file_info_time(local, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> - {ok, FI#file_info{ - atime = time_epochs_to_local(Atime), - ctime = time_epochs_to_local(Ctime), - mtime = time_epochs_to_local(Mtime) - } - }; -file_info_time(utc, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> - {ok, FI#file_info{ - atime = time_epochs_to_utc(Atime), - ctime = time_epochs_to_utc(Ctime), - mtime = time_epochs_to_utc(Mtime) - } - }; -file_info_time(_, Error) -> Error. - -%% from_epochs -file_info_epochs(epoch, FI) -> FI; -file_info_epochs(local, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI) -> - FI#file_info{ - atime = time_local_to_epochs(Atime), - ctime = time_local_to_epochs(Ctime), - mtime = time_local_to_epochs(Mtime) - }; -file_info_epochs(utc, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> - FI#file_info{ - atime = time_utc_to_epochs(Atime), - ctime = time_utc_to_epochs(Ctime), - mtime = time_utc_to_epochs(Mtime) - }. - - --define(DAYS_FROM_0_TO_1970, 719528). --define(SECONDS_PER_DAY, 86400). - -time_epochs_to_utc(Seconds) when is_integer(Seconds) -> - calendar:gregorian_seconds_to_datetime(Seconds + ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970). - -time_epochs_to_local(Seconds) when is_integer(Seconds) -> - erlang:universaltime_to_localtime(calendar:gregorian_seconds_to_datetime(Seconds + ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970)). - -time_utc_to_epochs({_, _} = Datetime) -> - calendar:datetime_to_gregorian_seconds(Datetime) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970; -time_utc_to_epochs(undefined) -> - time_utc_to_epochs(erlang:universaltime()). - - -time_local_to_epochs({_, _} = Datetime) -> - calendar:datetime_to_gregorian_seconds(erlang:localtime_to_universaltime(Datetime)) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970; -time_local_to_epochs(undefined) -> - time_utc_to_epochs(erlang:universaltime()). - +%file_info_time(epoch, {ok, FI} = R) -> R; +%file_info_time(local, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> +% {ok, FI#file_info{ +% atime = time_epochs_to_local(Atime), +% ctime = time_epochs_to_local(Ctime), +% mtime = time_epochs_to_local(Mtime) +% } +% }; +%file_info_time(utc, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> +% {ok, FI#file_info{ +% atime = time_epochs_to_utc(Atime), +% ctime = time_epochs_to_utc(Ctime), +% mtime = time_epochs_to_utc(Mtime) +% } +% }; +%file_info_time(_, Error) -> Error. +% +%%% from_epochs +%file_info_epochs(epoch, FI) -> FI; +%file_info_epochs(local, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI) -> +% FI#file_info{ +% atime = time_local_to_epochs(Atime), +% ctime = time_local_to_epochs(Ctime), +% mtime = time_local_to_epochs(Mtime) +% }; +%file_info_epochs(utc, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> +% FI#file_info{ +% atime = time_utc_to_epochs(Atime), +% ctime = time_utc_to_epochs(Ctime), +% mtime = time_utc_to_epochs(Mtime) +% }. +% +% +%-define(DAYS_FROM_0_TO_1970, 719528). +%-define(SECONDS_PER_DAY, 86400). +% +%time_epochs_to_utc(Seconds) when is_integer(Seconds) -> +% calendar:gregorian_seconds_to_datetime(Seconds + ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970). +% +%time_epochs_to_local(Seconds) when is_integer(Seconds) -> +% erlang:universaltime_to_localtime(calendar:gregorian_seconds_to_datetime(Seconds + ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970)). +% +%time_utc_to_epochs({_, _} = Datetime) -> +% calendar:datetime_to_gregorian_seconds(Datetime) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970; +%time_utc_to_epochs(undefined) -> +% time_utc_to_epochs(erlang:universaltime()). +% +% +%time_local_to_epochs({_, _} = Datetime) -> +% calendar:datetime_to_gregorian_seconds(erlang:localtime_to_universaltime(Datetime)) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970; +%time_local_to_epochs(undefined) -> +% time_utc_to_epochs(erlang:universaltime()). +% %% file_name(FileName) %% Generates a flat file name from a deep list of atoms and -- cgit v1.2.3 From 4ee95bc5c0113da005feeded022876383879d55c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= Date: Wed, 30 Nov 2011 18:12:31 +0100 Subject: Add spec for file:read_link_info/2 --- lib/kernel/src/file.erl | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'lib/kernel/src/file.erl') diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl index d8ade07336..80780700ab 100644 --- a/lib/kernel/src/file.erl +++ b/lib/kernel/src/file.erl @@ -238,6 +238,12 @@ altname(Name) -> read_link_info(Name) -> check_and_call(read_link_info, [file_name(Name)]). +-spec read_link_info(Name, Opts) -> {ok, FileInfo} | {error, Reason} when + Name :: name(), + Opts :: list(), + FileInfo :: file_info(), + Reason :: posix() | badarg. + read_link_info(Name, Opts) when is_list(Opts) -> check_and_call(read_link_info, [file_name(Name),Opts]). @@ -264,7 +270,6 @@ write_file_info(Name, Info = #file_info{}) -> FileInfo :: file_info(), Reason :: posix() | badarg. - write_file_info(Name, Info = #file_info{}, Opts) when is_list(Opts) -> check_and_call(write_file_info, [file_name(Name), Info, Opts]). -- cgit v1.2.3 From 9158448a508e3e919739dbee0e8e0cad32445941 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= Date: Wed, 7 Dec 2011 15:35:43 +0100 Subject: Remove dead code --- lib/kernel/src/file.erl | 58 ------------------------------------------------- 1 file changed, 58 deletions(-) (limited to 'lib/kernel/src/file.erl') diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl index 80780700ab..7a48d34a09 100644 --- a/lib/kernel/src/file.erl +++ b/lib/kernel/src/file.erl @@ -1351,64 +1351,6 @@ fname_join(Dir, Name) -> %%%----------------------------------------------------------------- %%% Utility functions. -%% convert file times. -%% all times from prime_file (and file_server) are in unix epochs - -%% from_epochs -%file_info_time(epoch, {ok, FI} = R) -> R; -%file_info_time(local, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> -% {ok, FI#file_info{ -% atime = time_epochs_to_local(Atime), -% ctime = time_epochs_to_local(Ctime), -% mtime = time_epochs_to_local(Mtime) -% } -% }; -%file_info_time(utc, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> -% {ok, FI#file_info{ -% atime = time_epochs_to_utc(Atime), -% ctime = time_epochs_to_utc(Ctime), -% mtime = time_epochs_to_utc(Mtime) -% } -% }; -%file_info_time(_, Error) -> Error. -% -%%% from_epochs -%file_info_epochs(epoch, FI) -> FI; -%file_info_epochs(local, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI) -> -% FI#file_info{ -% atime = time_local_to_epochs(Atime), -% ctime = time_local_to_epochs(Ctime), -% mtime = time_local_to_epochs(Mtime) -% }; -%file_info_epochs(utc, {ok, #file_info{ atime = Atime, ctime = Ctime, mtime = Mtime } = FI}) -> -% FI#file_info{ -% atime = time_utc_to_epochs(Atime), -% ctime = time_utc_to_epochs(Ctime), -% mtime = time_utc_to_epochs(Mtime) -% }. -% -% -%-define(DAYS_FROM_0_TO_1970, 719528). -%-define(SECONDS_PER_DAY, 86400). -% -%time_epochs_to_utc(Seconds) when is_integer(Seconds) -> -% calendar:gregorian_seconds_to_datetime(Seconds + ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970). -% -%time_epochs_to_local(Seconds) when is_integer(Seconds) -> -% erlang:universaltime_to_localtime(calendar:gregorian_seconds_to_datetime(Seconds + ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970)). -% -%time_utc_to_epochs({_, _} = Datetime) -> -% calendar:datetime_to_gregorian_seconds(Datetime) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970; -%time_utc_to_epochs(undefined) -> -% time_utc_to_epochs(erlang:universaltime()). -% -% -%time_local_to_epochs({_, _} = Datetime) -> -% calendar:datetime_to_gregorian_seconds(erlang:localtime_to_universaltime(Datetime)) - ?SECONDS_PER_DAY * ?DAYS_FROM_0_TO_1970; -%time_local_to_epochs(undefined) -> -% time_utc_to_epochs(erlang:universaltime()). -% - %% file_name(FileName) %% Generates a flat file name from a deep list of atoms and %% characters (integers). -- cgit v1.2.3 From 965db6494f80e4c784aa3bb1cd96dd925ce8b284 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= Date: Wed, 7 Dec 2011 23:37:11 +0100 Subject: Document file:*_file_info/2 * file:read_file_info/2 * file:write_file_info/3 Document options and time behavior. --- lib/kernel/src/file.erl | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'lib/kernel/src/file.erl') diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl index 7a48d34a09..b253b3e901 100644 --- a/lib/kernel/src/file.erl +++ b/lib/kernel/src/file.erl @@ -109,6 +109,10 @@ -type posix_file_advise() :: 'normal' | 'sequential' | 'random' | 'no_reuse' | 'will_need' | 'dont_need'. -type sendfile_option() :: {chunk_size, non_neg_integer()}. +-type file_info_option() :: {'time', 'local'} | {'time', 'universal'} + | {'time', 'posix'}. + + %%%----------------------------------------------------------------- %%% General functions @@ -218,7 +222,7 @@ read_file_info(Name) -> -spec read_file_info(Filename, Opts) -> {ok, FileInfo} | {error, Reason} when Filename :: name(), - Opts :: list(), + Opts :: [file_info_option()], FileInfo :: file_info(), Reason :: posix() | badarg. @@ -240,7 +244,7 @@ read_link_info(Name) -> -spec read_link_info(Name, Opts) -> {ok, FileInfo} | {error, Reason} when Name :: name(), - Opts :: list(), + Opts :: [file_info_option()], FileInfo :: file_info(), Reason :: posix() | badarg. @@ -266,7 +270,7 @@ write_file_info(Name, Info = #file_info{}) -> -spec write_file_info(Filename, FileInfo, Opts) -> ok | {error, Reason} when Filename :: name(), - Opts :: list(), + Opts :: [file_info_option()], FileInfo :: file_info(), Reason :: posix() | badarg. -- cgit v1.2.3