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-rw-r--r--lib/kernel/src/code.erl129
1 files changed, 63 insertions, 66 deletions
diff --git a/lib/kernel/src/code.erl b/lib/kernel/src/code.erl
index feb5131aad..b0f99305f2 100644
--- a/lib/kernel/src/code.erl
+++ b/lib/kernel/src/code.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2011. 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
@@ -72,39 +72,42 @@
%% User interface.
%%
-%% objfile_extension() -> ".beam"
-%% set_path(Dir*) -> true
-%% get_path() -> Dir*
-%% add_path(Dir) -> true | {error, What}
-%% add_patha(Dir) -> true | {error, What}
-%% add_pathz(Dir) -> true | {error, What}
-%% add_paths(DirList) -> true | {error, What}
-%% add_pathsa(DirList) -> true | {error, What}
-%% add_pathsz(DirList) -> true | {error, What}
-%% del_path(Dir) -> true | {error, What}
-%% replace_path(Name,Dir) -> true | {error, What}
-%% load_file(File) -> {error,What} | {module, Mod}
-%% load_abs(File) -> {error,What} | {module, Mod}
-%% load_abs(File,Mod) -> {error,What} | {module, Mod}
-%% load_binary(Mod,File,Bin) -> {error,What} | {module,Mod}
-%% ensure_loaded(Module) -> {error,What} | {module, Mod}
-%% delete(Module)
-%% purge(Module) kills all procs running old code
-%% soft_purge(Module) -> true | false
-%% is_loaded(Module) -> {file, File} | false
-%% all_loaded() -> {Module, File}*
-%% get_object_code(Mod) -> error | {Mod, Bin, Filename}
-%% stop() -> true
-%% root_dir()
-%% compiler_dir()
-%% lib_dir()
-%% priv_dir(Name)
-%% stick_dir(Dir) -> ok | error
-%% unstick_dir(Dir) -> ok | error
-%% is_sticky(Module) -> true | false
-%% which(Module) -> Filename
-%% set_primary_archive((FileName, Bin, FileInfo) -> ok | {error, Reason}
-%% clash() -> -> print out
+%% objfile_extension() -> ".beam"
+%% get_path() -> [Dir]
+%% set_path([Dir]) -> true | {error, bad_directory | bad_path}
+%% add_path(Dir) -> true | {error, bad_directory}
+%% add_patha(Dir) -> true | {error, bad_directory}
+%% add_pathz(Dir) -> true | {error, bad_directory}
+%% add_paths([Dir]) -> ok
+%% add_pathsa([Dir]) -> ok
+%% add_pathsz([Dir]) -> ok
+%% del_path(Dir) -> boolean() | {error, bad_name}
+%% replace_path(Name, Dir) -> true | replace_path_error()
+%% load_file(Module) -> {module, Module} | {error, What :: atom()}
+%% load_abs(File) -> {module, Module} | {error, What :: atom()}
+%% load_abs(File, Module) -> {module, Module} | {error, What :: atom()}
+%% load_binary(Module, File, Bin)-> {module, Module} | {error, What :: atom()}
+%% ensure_loaded(Module) -> {module, Module} | {error, What :: atom()}
+%% delete(Module) -> boolean()
+%% purge(Module) -> boolean() kills all procs running old code
+%% soft_purge(Module) -> boolean()
+%% is_loaded(Module) -> {file, loaded_filename()} | false
+%% all_loaded() -> [{Module, loaded_filename()}]
+%% get_object_code(Module) -> {Module, Bin, Filename} | error
+%% stop() -> no_return()
+%% root_dir() -> Dir
+%% compiler_dir() -> Dir
+%% lib_dir() -> Dir
+%% lib_dir(Application) -> Dir | {error, bad_name}
+%% priv_dir(Application) -> Dir | {error, bad_name}
+%% stick_dir(Dir) -> ok | error
+%% unstick_dir(Dir) -> ok | error
+%% stick_mod(Module) -> true
+%% unstick_mod(Module) -> true
+%% is_sticky(Module) -> boolean()
+%% which(Module) -> Filename | loaded_ret_atoms() | non_existing
+%% set_primary_archive((FileName, Bin, FileInfo) -> ok | {error, Reason}
+%% clash() -> ok prints out number of clashes
%%----------------------------------------------------------------------------
%% Some types for basic exported functions of this module
@@ -120,7 +123,7 @@
%% User interface
%%----------------------------------------------------------------------------
--spec objfile_extension() -> file:filename().
+-spec objfile_extension() -> nonempty_string().
objfile_extension() ->
init:objfile_extension().
@@ -138,21 +141,21 @@ load_abs(File) when is_list(File); is_atom(File) -> call({load_abs,File,[]}).
%% XXX Filename is also an atom(), e.g. 'cover_compiled'
-spec load_abs(Filename :: loaded_filename(), Module :: atom()) -> load_ret().
-load_abs(File,M) when (is_list(File) orelse is_atom(File)), is_atom(M) ->
+load_abs(File, M) when (is_list(File) orelse is_atom(File)), is_atom(M) ->
call({load_abs,File,M}).
%% XXX Filename is also an atom(), e.g. 'cover_compiled'
-spec load_binary(Module :: atom(), Filename :: loaded_filename(), Binary :: binary()) -> load_ret().
-load_binary(Mod,File,Bin)
+load_binary(Mod, File, Bin)
when is_atom(Mod), (is_list(File) orelse is_atom(File)), is_binary(Bin) ->
call({load_binary,Mod,File,Bin}).
-spec load_native_partial(Module :: atom(), Binary :: binary()) -> load_ret().
-load_native_partial(Mod,Bin) when is_atom(Mod), is_binary(Bin) ->
+load_native_partial(Mod, Bin) when is_atom(Mod), is_binary(Bin) ->
call({load_native_partial,Mod,Bin}).
-spec load_native_sticky(Module :: atom(), Binary :: binary(), WholeModule :: 'false' | binary()) -> load_ret().
-load_native_sticky(Mod,Bin,WholeModule)
+load_native_sticky(Mod, Bin, WholeModule)
when is_atom(Mod), is_binary(Bin),
(is_binary(WholeModule) orelse WholeModule =:= false) ->
call({load_native_sticky,Mod,Bin,WholeModule}).
@@ -160,7 +163,7 @@ load_native_sticky(Mod,Bin,WholeModule)
-spec delete(Module :: atom()) -> boolean().
delete(Mod) when is_atom(Mod) -> call({delete,Mod}).
--spec purge/1 :: (Module :: atom()) -> boolean().
+-spec purge(Module :: atom()) -> boolean().
purge(Mod) when is_atom(Mod) -> call({purge,Mod}).
-spec soft_purge(Module :: atom()) -> boolean().
@@ -195,7 +198,7 @@ lib_dir(App, SubDir) when is_atom(App), is_atom(SubDir) -> call({dir,{lib_dir,Ap
compiler_dir() -> call({dir,compiler_dir}).
%% XXX is_list() is for backwards compatibility -- take out in future version
--spec priv_dir(Appl :: atom()) -> file:filename() | {'error', 'bad_name'}.
+-spec priv_dir(App :: atom()) -> file:filename() | {'error', 'bad_name'}.
priv_dir(App) when is_atom(App) ; is_list(App) -> call({dir,{priv_dir,App}}).
-spec stick_dir(Directory :: file:filename()) -> 'ok' | 'error'.
@@ -220,13 +223,14 @@ set_path(PathList) when is_list(PathList) -> call({set_path,PathList}).
-spec get_path() -> [file:filename()].
get_path() -> call(get_path).
--spec add_path(Directory :: file:filename()) -> 'true' | {'error', 'bad_directory'}.
+-type add_path_ret() :: 'true' | {'error', 'bad_directory'}.
+-spec add_path(Directory :: file:filename()) -> add_path_ret().
add_path(Dir) when is_list(Dir) -> call({add_path,last,Dir}).
--spec add_pathz(Directory :: file:filename()) -> 'true' | {'error', 'bad_directory'}.
+-spec add_pathz(Directory :: file:filename()) -> add_path_ret().
add_pathz(Dir) when is_list(Dir) -> call({add_path,last,Dir}).
--spec add_patha(Directory :: file:filename()) -> 'true' | {'error', 'bad_directory'}.
+-spec add_patha(Directory :: file:filename()) -> add_path_ret().
add_patha(Dir) when is_list(Dir) -> call({add_path,first,Dir}).
-spec add_paths(Directories :: [file:filename()]) -> 'ok'.
@@ -243,8 +247,8 @@ del_path(Name) when is_list(Name) ; is_atom(Name) -> call({del_path,Name}).
-type replace_path_error() :: {'error', 'bad_directory' | 'bad_name' | {'badarg',_}}.
-spec replace_path(Name:: atom(), Dir :: file:filename()) -> 'true' | replace_path_error().
-replace_path(Name, Dir) when (is_atom(Name) or is_list(Name)) and
- (is_atom(Dir) or is_list(Dir)) ->
+replace_path(Name, Dir) when (is_atom(Name) orelse is_list(Name)),
+ (is_atom(Dir) orelse is_list(Dir)) ->
call({replace_path,Name,Dir}).
-spec rehash() -> 'ok'.
@@ -275,21 +279,14 @@ start_link(Flags) ->
do_start(Flags) ->
%% The following module_info/1 calls are here to ensure
- %% that the modules are loaded prior to their use elsewhere in
+ %% that these modules are loaded prior to their use elsewhere in
%% the code_server.
%% Otherwise a deadlock may occur when the code_server is starting.
- code_server:module_info(module),
- packages:module_info(module),
+ code_server = code_server:module_info(module),
+ packages = packages:module_info(module),
catch hipe_unified_loader:load_hipe_modules(),
- gb_sets:module_info(module),
- gb_trees:module_info(module),
-
- ets:module_info(module),
- os:module_info(module),
- binary:module_info(module),
- unicode:module_info(module),
- filename:module_info(module),
- lists:module_info(module),
+ Modules2 = [gb_sets, gb_trees, ets, os, binary, unicode, filename, lists],
+ lists:foreach(fun (M) -> M = M:module_info(module) end, Modules2),
Mode = get_mode(Flags),
case init:get_argument(root) of
@@ -297,7 +294,7 @@ do_start(Flags) ->
Root = filename:join([Root0]), % Normalize. Use filename
case code_server:start_link([Root,Mode]) of
{ok,_Pid} = Ok2 ->
- if
+ if
Mode =:= interactive ->
case lists:member(stick, Flags) of
true -> do_stick_dirs();
@@ -306,14 +303,14 @@ do_start(Flags) ->
true ->
ok
end,
- % Quietly load the native code for all modules loaded so far.
+ %% Quietly load native code for all modules loaded so far
catch load_native_code_for_all_loaded(),
Ok2;
Other ->
Other
end;
Other ->
- error_logger:error_msg("Can not start code server ~w ~n",[Other]),
+ error_logger:error_msg("Can not start code server ~w ~n", [Other]),
{error, crash}
end.
@@ -330,7 +327,7 @@ do_s(Lib) ->
%% The return value is intentionally ignored. Missing
%% directories is not a fatal error. (In embedded systems,
%% there is usually no compiler directory.)
- stick_dir(filename:append(Dir, "ebin")),
+ _ = stick_dir(filename:append(Dir, "ebin")),
ok
end.
@@ -428,7 +425,7 @@ where_is_file(Path, File) when is_list(Path), is_list(File) ->
-spec set_primary_archive(ArchiveFile :: file:filename(),
ArchiveBin :: binary(),
- FileInfo :: #file_info{})
+ FileInfo :: file:file_info())
-> 'ok' | {'error', atom()}.
set_primary_archive(ArchiveFile0, ArchiveBin, #file_info{} = FileInfo)
@@ -485,13 +482,13 @@ filter(Ext, _, {ok,Files}) ->
filter2(Ext, length(Ext), Files).
filter2(_Ext, _Extlen, []) -> [];
-filter2(Ext, Extlen,[File|Tail]) ->
- case has_ext(Ext,Extlen, File) of
+filter2(Ext, Extlen, [File|Tail]) ->
+ case has_ext(Ext, Extlen, File) of
true -> [File | filter2(Ext, Extlen, Tail)];
false -> filter2(Ext, Extlen, Tail)
end.
-has_ext(Ext, Extlen,File) ->
+has_ext(Ext, Extlen, File) ->
L = length(File),
case catch lists:nthtail(L - Extlen, File) of
Ext -> true;