diff options
Diffstat (limited to 'lib/wx/src/wx_object.erl')
-rw-r--r-- | lib/wx/src/wx_object.erl | 122 |
1 files changed, 77 insertions, 45 deletions
diff --git a/lib/wx/src/wx_object.erl b/lib/wx/src/wx_object.erl index 80f8937656..40ee308358 100644 --- a/lib/wx/src/wx_object.erl +++ b/lib/wx/src/wx_object.erl @@ -1,18 +1,19 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2008-2011. All Rights Reserved. +%% Copyright Ericsson AB 2008-2016. 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 -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at %% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. %% %% %CopyrightEnd% %%%------------------------------------------------------------------- @@ -102,43 +103,45 @@ %% API -export([start/3, start/4, start_link/3, start_link/4, + stop/1, stop/3, call/2, call/3, cast/2, reply/2, - get_pid/1 + get_pid/1, + set_pid/2 ]). %% -export([behaviour_info/1]). -callback init(Args :: term()) -> - {#wx_ref{}, State :: term()} | {#wx_ref{}, State :: term(), timeout() | hibernate} | - {stop, Reason :: term()} | ignore. + {#wx_ref{}, State :: term()} | {#wx_ref{}, State :: term(), timeout() | 'hibernate'} | + {'stop', Reason :: term()} | 'ignore'. -callback handle_event(Request :: #wx{}, State :: term()) -> - {noreply, NewState :: term()} | - {noreply, NewState :: term(), timeout() | hibernate} | - {stop, Reason :: term(), NewState :: term()}. + {'noreply', NewState :: term()} | + {'noreply', NewState :: term(), timeout() | 'hibernate'} | + {'stop', Reason :: term(), NewState :: term()}. -callback handle_call(Request :: term(), From :: {pid(), Tag :: term()}, State :: term()) -> - {reply, Reply :: term(), NewState :: term()} | - {reply, Reply :: term(), NewState :: term(), timeout() | hibernate} | - {noreply, NewState :: term()} | - {noreply, NewState :: term(), timeout() | hibernate} | - {stop, Reason :: term(), Reply :: term(), NewState :: term()} | - {stop, Reason :: term(), NewState :: term()}. + {'reply', Reply :: term(), NewState :: term()} | + {'reply', Reply :: term(), NewState :: term(), timeout() | 'hibernate'} | + {'noreply', NewState :: term()} | + {'noreply', NewState :: term(), timeout() | 'hibernate'} | + {'stop', Reason :: term(), Reply :: term(), NewState :: term()} | + {'stop', Reason :: term(), NewState :: term()}. -callback handle_cast(Request :: term(), State :: term()) -> - {noreply, NewState :: term()} | - {noreply, NewState :: term(), timeout() | hibernate} | - {stop, Reason :: term(), NewState :: term()}. + {'noreply', NewState :: term()} | + {'noreply', NewState :: term(), timeout() | 'hibernate'} | + {'stop', Reason :: term(), NewState :: term()}. -callback handle_info(Info :: timeout() | term(), State :: term()) -> - {noreply, NewState :: term()} | - {noreply, NewState :: term(), timeout() | hibernate} | - {stop, Reason :: term(), NewState :: term()}. --callback terminate(Reason :: (normal | shutdown | {shutdown, term()} | + {'noreply', NewState :: term()} | + {'noreply', NewState :: term(), timeout() | 'hibernate'} | + {'stop', Reason :: term(), NewState :: term()}. +-callback terminate(Reason :: ('normal' | 'shutdown' | {'shutdown', term()} | term()), State :: term()) -> term(). --callback code_change(OldVsn :: (term() | {down, term()}), State :: term(), +-callback code_change(OldVsn :: (term() | {'down', term()}), State :: term(), Extra :: term()) -> - {ok, NewState :: term()} | {error, Reason :: term()}. + {'ok', NewState :: term()} | {'error', Reason :: term()}. %% System exports @@ -215,6 +218,42 @@ gen_response({ok, Pid}) -> gen_response(Reply) -> Reply. +%% @spec (Ref::wxObject()|atom()|pid()) -> ok +%% @doc Stops a generic wx_object server with reason 'normal'. +%% Invokes terminate(Reason,State) in the server. The call waits until +%% the process is terminated. If the process does not exist, an +%% exception is raised. +stop(Ref = #wx_ref{state=Pid}) when is_pid(Pid) -> + try + gen:stop(Pid) + catch _:ExitReason -> + erlang:error({ExitReason, {?MODULE, stop, [Ref]}}) + end; +stop(Name) when is_atom(Name) orelse is_pid(Name) -> + try + gen:stop(Name) + catch _:ExitReason -> + erlang:error({ExitReason, {?MODULE, stop, [Name]}}) + end. + +%% @spec (Ref::wxObject()|atom()|pid(), Reason::term(), Timeout::timeout()) -> ok +%% @doc Stops a generic wx_object server with the given Reason. +%% Invokes terminate(Reason,State) in the server. The call waits until +%% the process is terminated. If the call times out, or if the process +%% does not exist, an exception is raised. +stop(Ref = #wx_ref{state=Pid}, Reason, Timeout) when is_pid(Pid) -> + try + gen:stop(Pid, Reason, Timeout) + catch _:ExitReason -> + erlang:error({ExitReason, {?MODULE, stop, [Ref, Reason, Timeout]}}) + end; +stop(Name, Reason, Timeout) when is_atom(Name) orelse is_pid(Name) -> + try + gen:stop(Name, Reason, Timeout) + catch _:ExitReason -> + erlang:error({ExitReason, {?MODULE, stop, [Name, Reason, Timeout]}}) + end. + %% @spec (Ref::wxObject()|atom()|pid(), Request::term()) -> term() %% @doc Make a call to a wx_object server. %% The call waits until it gets a result. @@ -268,6 +307,11 @@ cast(Name, Request) when is_atom(Name) orelse is_pid(Name) -> get_pid(#wx_ref{state=Pid}) when is_pid(Pid) -> Pid. +%% @spec (Ref::wxObject(), pid()) -> wxObject() +%% @doc Sets the controlling process of the object handle. +set_pid(#wx_ref{}=R, Pid) when is_pid(Pid) -> + R#wx_ref{state=Pid}. + %% ----------------------------------------------------------------- %% Send a reply to the client. %% ----------------------------------------------------------------- @@ -563,22 +607,10 @@ opt(_, []) -> %% @hidden debug_options(Name, Opts) -> case opt(debug, Opts) of - {ok, Options} -> dbg_options(Name, Options); - _ -> dbg_options(Name, []) + {ok, Options} -> dbg_opts(Name, Options); + _ -> [] end. %% @hidden -dbg_options(Name, []) -> - Opts = - case init:get_argument(generic_debug) of - error -> - []; - _ -> - [log, statistics] - end, - dbg_opts(Name, Opts); -dbg_options(Name, Opts) -> - dbg_opts(Name, Opts). -%% @hidden dbg_opts(Name, Opts) -> case catch sys:debug_options(Opts) of {'EXIT',_} -> |