diff options
Diffstat (limited to 'lib/stdlib/src/gen_server.erl')
| -rw-r--r-- | lib/stdlib/src/gen_server.erl | 62 |
1 files changed, 39 insertions, 23 deletions
diff --git a/lib/stdlib/src/gen_server.erl b/lib/stdlib/src/gen_server.erl index f1a9a31c63..ac81df9cab 100644 --- a/lib/stdlib/src/gen_server.erl +++ b/lib/stdlib/src/gen_server.erl @@ -1,19 +1,19 @@ %% %% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. -%% +%% +%% Copyright Ericsson AB 1996-2010. 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/. -%% +%% %% 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. -%% +%% %% %CopyrightEnd% %% -module(gen_server). @@ -103,7 +103,7 @@ format_status/2]). %% Internal exports --export([init_it/6, print_event/3]). +-export([init_it/6]). -import(error_logger, [format/2]). @@ -353,7 +353,7 @@ decode_msg(Msg, Parent, Name, State, Mod, Time, Debug, Hib) -> _Msg when Debug =:= [] -> handle_msg(Msg, Parent, Name, State, Mod); _Msg -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, + Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, {in, Msg}), handle_msg(Msg, Parent, Name, State, Mod, Debug1) end. @@ -589,11 +589,11 @@ handle_msg({'$gen_call', From, Msg}, Parent, Name, State, Mod, Debug) -> Debug1 = reply(Name, From, Reply, NState, Debug), loop(Parent, Name, NState, Mod, Time1, Debug1); {noreply, NState} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, + Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, {noreply, NState}), loop(Parent, Name, NState, Mod, infinity, Debug1); {noreply, NState, Time1} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, + Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, {noreply, NState}), loop(Parent, Name, NState, Mod, Time1, Debug1); {stop, Reason, Reply, NState} -> @@ -625,11 +625,11 @@ handle_common_reply(Reply, Parent, Name, Msg, Mod, State) -> handle_common_reply(Reply, Parent, Name, Msg, Mod, State, Debug) -> case Reply of {noreply, NState} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, + Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, {noreply, NState}), loop(Parent, Name, NState, Mod, infinity, Debug1); {noreply, NState, Time1} -> - Debug1 = sys:handle_debug(Debug, {?MODULE, print_event}, Name, + Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, {noreply, NState}), loop(Parent, Name, NState, Mod, Time1, Debug1); {stop, Reason, NState} -> @@ -642,7 +642,7 @@ handle_common_reply(Reply, Parent, Name, Msg, Mod, State, Debug) -> reply(Name, {To, Tag}, Reply, State, Debug) -> reply({To, Tag}, Reply), - sys:handle_debug(Debug, {?MODULE, print_event}, Name, + sys:handle_debug(Debug, fun print_event/3, Name, {out, Reply, To, State} ). @@ -705,7 +705,18 @@ terminate(Reason, Name, Msg, Mod, State, Debug) -> {shutdown,_}=Shutdown -> exit(Shutdown); _ -> - error_info(Reason, Name, Msg, State, Debug), + FmtState = + case erlang:function_exported(Mod, format_status, 2) of + true -> + Args = [get(), State], + case catch Mod:format_status(terminate, Args) of + {'EXIT', _} -> State; + Else -> Else + end; + _ -> + State + end, + error_info(Reason, Name, Msg, FmtState, Debug), exit(Reason) end end. @@ -829,22 +840,27 @@ name_to_pid(Name) -> %%----------------------------------------------------------------- format_status(Opt, StatusData) -> [PDict, SysState, Parent, Debug, [Name, State, Mod, _Time]] = StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for generic server ", NameTag]), + StatusHdr = "Status for generic server", + Header = if + is_pid(Name) -> + lists:concat([StatusHdr, " ", pid_to_list(Name)]); + is_atom(Name); is_list(Name) -> + lists:concat([StatusHdr, " ", Name]); + true -> + {StatusHdr, Name} + end, Log = sys:get_debug(log, Debug, []), - Specfic = + DefaultStatus = [{data, [{"State", State}]}], + Specfic = case erlang:function_exported(Mod, format_status, 2) of true -> case catch Mod:format_status(Opt, [PDict, State]) of - {'EXIT', _} -> [{data, [{"State", State}]}]; - Else -> Else + {'EXIT', _} -> DefaultStatus; + StatusList when is_list(StatusList) -> StatusList; + Else -> [Else] end; _ -> - [{data, [{"State", State}]}] + DefaultStatus end, [{header, Header}, {data, [{"Status", SysState}, |