The R13B03 release.OTP_R13B03

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
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+++ 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]}}.