diff options
Diffstat (limited to 'lib/kernel/src/os.erl')
| -rw-r--r-- | lib/kernel/src/os.erl | 79 |
1 files changed, 47 insertions, 32 deletions
diff --git a/lib/kernel/src/os.erl b/lib/kernel/src/os.erl index f6769df585..e20a2434b4 100644 --- a/lib/kernel/src/os.erl +++ b/lib/kernel/src/os.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2011. All Rights Reserved. +%% Copyright Ericsson AB 1997-2012. 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 @@ -24,16 +24,48 @@ -include("file.hrl"). --spec type() -> vxworks | {Osfamily, Osname} when +%%% BIFs + +-export([getenv/0, getenv/1, getpid/0, putenv/2, timestamp/0]). + +-spec getenv() -> [string()]. + +getenv() -> erlang:nif_error(undef). + +-spec getenv(VarName) -> Value | false when + VarName :: string(), + Value :: string(). + +getenv(_) -> + erlang:nif_error(undef). + +-spec getpid() -> Value when + Value :: string(). + +getpid() -> + erlang:nif_error(undef). + +-spec putenv(VarName, Value) -> true when + VarName :: string(), + Value :: string(). + +putenv(_, _) -> + erlang:nif_error(undef). + +-spec timestamp() -> Timestamp when + Timestamp :: erlang:timestamp(). + +timestamp() -> + erlang:nif_error(undef). + +%%% End of BIFs + +-spec type() -> {Osfamily, Osname} when Osfamily :: unix | win32, Osname :: atom(). type() -> - case erlang:system_info(os_type) of - {vxworks, _} -> - vxworks; - Else -> Else - end. + erlang:system_info(os_type). -spec version() -> VersionString | {Major, Minor, Release} when VersionString :: string(), @@ -83,25 +115,14 @@ find_executable1(_Name, [], _Extensions) -> verify_executable(Name0, [Ext|Rest], OrigExtensions) -> Name1 = Name0 ++ Ext, - case os:type() of - vxworks -> - %% We consider all existing VxWorks files to be executable - case file:read_file_info(Name1) of - {ok, _} -> - {ok, Name1}; - _ -> - verify_executable(Name0, Rest, OrigExtensions) - end; + case file:read_file_info(Name1) of + {ok, #file_info{type=regular,mode=Mode}} + when Mode band 8#111 =/= 0 -> + %% XXX This test for execution permission is not fool-proof + %% on Unix, since we test if any execution bit is set. + {ok, Name1}; _ -> - case file:read_file_info(Name1) of - {ok, #file_info{type=regular,mode=Mode}} - when Mode band 8#111 =/= 0 -> - %% XXX This test for execution permission is not fool-proof - %% on Unix, since we test if any execution bit is set. - {ok, Name1}; - _ -> - verify_executable(Name0, Rest, OrigExtensions) - end + verify_executable(Name0, Rest, OrigExtensions) end; verify_executable(Name, [], OrigExtensions) when OrigExtensions =/= [""] -> %% Windows %% Will only happen on windows, hence case insensitivity @@ -154,8 +175,7 @@ reverse_element(List) -> extensions() -> case type() of {win32, _} -> [".exe",".com",".cmd",".bat"]; - {unix, _} -> [""]; - vxworks -> [""] + {unix, _} -> [""] end. %% Executes the given command in the default shell for the operating system. @@ -173,11 +193,6 @@ cmd(Cmd) -> {Cspec,_} -> lists:concat([Cspec," /c",Cmd]) end, Port = open_port({spawn, Command}, [stream, in, eof, hide]), - get_data(Port, []); - %% VxWorks uses a 'sh -c hook' in 'vxcall.c' to run os:cmd. - vxworks -> - Command = lists:concat(["sh -c '", Cmd, "'"]), - Port = open_port({spawn, Command}, [stream, in, eof]), get_data(Port, []) end. |