diff options
Diffstat (limited to 'lib/kernel/src')
| -rw-r--r-- | lib/kernel/src/application.erl | 20 | ||||
| -rw-r--r-- | lib/kernel/src/application_controller.erl | 48 |
2 files changed, 48 insertions, 20 deletions
diff --git a/lib/kernel/src/application.erl b/lib/kernel/src/application.erl index 4e8ba1b78a..b797d7d362 100644 --- a/lib/kernel/src/application.erl +++ b/lib/kernel/src/application.erl @@ -285,16 +285,18 @@ info() -> set_env(Application, Key, Val) -> application_controller:set_env(Application, Key, Val). --spec set_env(Application, Par, Val, Timeout) -> 'ok' when +-spec set_env(Application, Par, Val, Opts) -> 'ok' when Application :: atom(), Par :: atom(), Val :: term(), - Timeout :: timeout(). + Opts :: [{timeout, timeout()} | {persistent, boolean()}]. set_env(Application, Key, Val, infinity) -> - application_controller:set_env(Application, Key, Val, infinity); + set_env(Application, Key, Val, [{timeout, infinity}]); set_env(Application, Key, Val, Timeout) when is_integer(Timeout), Timeout>=0 -> - application_controller:set_env(Application, Key, Val, Timeout). + set_env(Application, Key, Val, [{timeout, Timeout}]); +set_env(Application, Key, Val, Opts) when is_list(Opts) -> + application_controller:set_env(Application, Key, Val, Opts). -spec unset_env(Application, Par) -> 'ok' when Application :: atom(), @@ -303,15 +305,17 @@ set_env(Application, Key, Val, Timeout) when is_integer(Timeout), Timeout>=0 -> unset_env(Application, Key) -> application_controller:unset_env(Application, Key). --spec unset_env(Application, Par, Timeout) -> 'ok' when +-spec unset_env(Application, Par, Opts) -> 'ok' when Application :: atom(), Par :: atom(), - Timeout :: timeout(). + Opts :: [{timeout, timeout()} | {persistent, boolean()}]. unset_env(Application, Key, infinity) -> - application_controller:unset_env(Application, Key, infinity); + unset_env(Application, Key, [{timeout, infinity}]); unset_env(Application, Key, Timeout) when is_integer(Timeout), Timeout>=0 -> - application_controller:unset_env(Application, Key, Timeout). + unset_env(Application, Key, [{timeout, Timeout}]); +unset_env(Application, Key, Opts) when is_list(Opts) -> + application_controller:unset_env(Application, Key, Opts). -spec get_env(Par) -> 'undefined' | {'ok', Val} when Par :: atom(), diff --git a/lib/kernel/src/application_controller.erl b/lib/kernel/src/application_controller.erl index 9ed2c7a7d9..9e3c746f6e 100644 --- a/lib/kernel/src/application_controller.erl +++ b/lib/kernel/src/application_controller.erl @@ -461,14 +461,16 @@ permit_application(ApplName, Flag) -> set_env(AppName, Key, Val) -> - gen_server:call(?AC, {set_env, AppName, Key, Val}). -set_env(AppName, Key, Val, Timeout) -> - gen_server:call(?AC, {set_env, AppName, Key, Val}, Timeout). + gen_server:call(?AC, {set_env, AppName, Key, Val, []}). +set_env(AppName, Key, Val, Opts) -> + Timeout = proplists:get_value(timeout, Opts, 5000), + gen_server:call(?AC, {set_env, AppName, Key, Val, Opts}, Timeout). unset_env(AppName, Key) -> - gen_server:call(?AC, {unset_env, AppName, Key}). -unset_env(AppName, Key, Timeout) -> - gen_server:call(?AC, {unset_env, AppName, Key}, Timeout). + gen_server:call(?AC, {unset_env, AppName, Key, []}). +unset_env(AppName, Key, Opts) -> + Timeout = proplists:get_value(timeout, Opts, 5000), + gen_server:call(?AC, {unset_env, AppName, Key, Opts}, Timeout). %%%----------------------------------------------------------------- %%% call-back functions from gen_server @@ -609,8 +611,8 @@ check_para([Else | _ParaList], AppName) -> | {'change_application_data', _, _} | {'permit_application', atom() | {'application',atom(),_},_} | {'start_application', _, _} - | {'unset_env', _, _} - | {'set_env', _, _, _}. + | {'unset_env', _, _, _} + | {'set_env', _, _, _, _}. -spec handle_call(calls(), {pid(), term()}, state()) -> {'noreply', state()} | {'reply', term(), state()}. @@ -858,13 +860,25 @@ handle_call(which_applications, _From, S) -> end, S#state.running), {reply, Reply, S}; -handle_call({set_env, AppName, Key, Val}, _From, S) -> +handle_call({set_env, AppName, Key, Val, Opts}, _From, S) -> ets:insert(ac_tab, {{env, AppName, Key}, Val}), - {reply, ok, S}; + case proplists:get_value(persistent, Opts, false) of + true -> + Fun = fun(Env) -> lists:keystore(Key, 1, Env, {Key, Val}) end, + {reply, ok, S#state{conf_data = change_app_env(S#state.conf_data, AppName, Fun)}}; + false -> + {reply, ok, S} + end; -handle_call({unset_env, AppName, Key}, _From, S) -> +handle_call({unset_env, AppName, Key, Opts}, _From, S) -> ets:delete(ac_tab, {env, AppName, Key}), - {reply, ok, S}; + case proplists:get_value(persistent, Opts, false) of + true -> + Fun = fun(Env) -> lists:keydelete(Key, 1, Env) end, + {reply, ok, S#state{conf_data = change_app_env(S#state.conf_data, AppName, Fun)}}; + false -> + {reply, ok, S} + end; handle_call({control_application, AppName}, {Pid, _Tag}, S) -> Control = S#state.control, @@ -1640,6 +1654,16 @@ merge_env([{App, AppEnv1} | T], Env2, Res) -> merge_env([], Env2, Res) -> Env2 ++ Res. +%% Changes the environment for the given application +%% If there is no application, an empty one is created +change_app_env(Env, App, Fun) -> + case get_env_key(App, Env) of + {value, AppEnv, RestEnv} -> + [{App, Fun(AppEnv)} | RestEnv]; + _ -> + [{App, Fun([])} | Env] + end. + %% Merges envs for an application. Env2 overrides Env1 merge_app_env(Env1, Env2) -> merge_app_env(Env1, Env2, []). |