diff options
Diffstat (limited to 'lib/sasl/src/sasl.erl')
| -rw-r--r-- | lib/sasl/src/sasl.erl | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/lib/sasl/src/sasl.erl b/lib/sasl/src/sasl.erl new file mode 100644 index 0000000000..979d80159e --- /dev/null +++ b/lib/sasl/src/sasl.erl @@ -0,0 +1,162 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1996-2009. 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(sasl). + +%% External exports +-export([start/2, stop/1]). + +%% Internal exports +-export([init/1, pred/1]). + +%%%----------------------------------------------------------------- +%%% This module implements the application SASL, +%%% and a supervisor for SASL. +%%%----------------------------------------------------------------- +-behaviour(application). + +-record(state, {sasl_error_logger, error_logger_mf}). + +start(_, []) -> + Handler = get_sasl_error_logger(), + Type = get_sasl_error_logger_type(), + Mf = get_error_logger_mf(), + add_sasl_error_logger(Handler, Type), + add_error_logger_mf(Mf), + State = #state{sasl_error_logger = Handler, error_logger_mf = Mf}, + case supervisor:start_link({local, sasl_sup}, sasl, []) of + {ok, Pid} -> {ok, Pid, State}; + Error -> Error + end. + +stop(State) -> + delete_sasl_error_logger(State#state.sasl_error_logger), + delete_error_logger_mf(State#state.error_logger_mf). + +%%----------------------------------------------------------------- +%% Internal functions +%%----------------------------------------------------------------- +get_sasl_error_logger() -> + case application:get_env(sasl, sasl_error_logger) of + {ok, false} -> undefined; + {ok, tty} -> tty; + {ok, {file, File}} when is_list(File) -> {file, File}; + {ok, Bad} -> exit({bad_config, {sasl, {sasl_error_logger, Bad}}}); + _ -> undefined + end. + +get_sasl_error_logger_type() -> + case application:get_env(sasl, errlog_type) of + {ok, error} -> error; + {ok, progress} -> progress; + {ok, all} -> all; + {ok, Bad} -> exit({bad_config, {sasl, {errlog_type, Bad}}}); + _ -> all + end. + +get_error_logger_mf() -> + case catch get_mf() of + {'EXIT', Reason} -> + exit(Reason); + Mf -> + Mf + end. + +get_mf() -> + Dir = get_mf_dir(), + MaxB = get_mf_maxb(), + MaxF = get_mf_maxf(), + {Dir, MaxB, MaxF}. + +get_mf_dir() -> + case application:get_env(sasl, error_logger_mf_dir) of + {ok, false} -> throw(undefined); + {ok, Dir} when is_list(Dir) -> Dir; + undefined -> throw(undefined); + {ok, Bad} -> exit({bad_config, {sasl, {error_logger_mf_dir, Bad}}}) + end. + +get_mf_maxb() -> + case application:get_env(sasl, error_logger_mf_maxbytes) of + {ok, MaxB} when is_integer(MaxB) -> MaxB; + undefined -> throw(undefined); + {ok, Bad} -> exit({bad_config, {sasl, {error_logger_mf_maxbytes, Bad}}}) + end. + +get_mf_maxf() -> + case application:get_env(sasl, error_logger_mf_maxfiles) of + {ok, MaxF} when is_integer(MaxF), MaxF > 0, MaxF < 256 -> MaxF; + undefined -> throw(undefined); + {ok, Bad} -> exit({bad_config, {sasl, {error_logger_mf_maxfiles, Bad}}}) + end. + +add_sasl_error_logger(undefined, _Type) -> ok; +add_sasl_error_logger(Handler, Type) -> + error_logger:add_report_handler(mod(Handler), args(Handler, Type)). + +delete_sasl_error_logger(undefined) -> ok; +delete_sasl_error_logger(Type) -> + error_logger:delete_report_handler(mod(Type)). + +mod(tty) -> sasl_report_tty_h; +mod({file, _File}) -> sasl_report_file_h. + +args({file, File}, Type) -> {File, type(Type)}; +args(_, Type) -> type(Type). + +type(error) -> error; +type(progress) -> progress; +type(_) -> all. + +add_error_logger_mf(undefined) -> ok; +add_error_logger_mf({Dir, MaxB, MaxF}) -> + error_logger:add_report_handler( + log_mf_h, log_mf_h:init(Dir, MaxB, MaxF, {sasl, pred})). + +delete_error_logger_mf(undefined) -> ok; +delete_error_logger_mf(_) -> + error_logger:delete_report_handler(log_mf_h). + +pred({_Type, GL, _Msg}) when node(GL) /= node() -> false; +pred(_) -> true. + +%%%----------------------------------------------------------------- +%%% supervisor functionality +%%%----------------------------------------------------------------- +init([]) -> + SupFlags = {one_for_one, 0, 1}, + %% Reboot node if release_handler crashes! + SafeSupervisor = {sasl_safe_sup, + {supervisor, start_link, + [{local, sasl_safe_sup}, ?MODULE, safe]}, + permanent, infinity, supervisor, [?MODULE]}, + ReleaseH = {release_handler, + {release_handler, start_link, []}, + permanent, 2000, worker, []}, % Note! [] for modules! We + % can't change code on r_h + % this way!! + {ok, {SupFlags, [SafeSupervisor, ReleaseH]}}; +init(safe) -> + SupFlags = {one_for_one, 4, 3600}, + AlarmH = {alarm_handler, + {alarm_handler, start_link, []}, + permanent, 2000, worker, dynamic}, + Overload = {overload, + {overload, start_link, []}, + permanent, 2000, worker, [overload]}, + {ok, {SupFlags, [AlarmH, Overload]}}. |