Imported trunk.

git-svn-id: https://svn.apache.org/repos/asf/incubator/couchdb/trunk@642432 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 81 insertions, 0 deletions

diff --git a/src/couch_inets/tftp_sup.erl b/src/couch_inets/tftp_sup.erl
new file mode 100644
index 00000000..5a176311
--- /dev/null
+++ b/src/couch_inets/tftp_sup.erl
@@ -0,0 +1,81 @@
+%% ``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 via the world wide web 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.
+%% 
+%% The Initial Developer of the Original Code is Ericsson Utvecklings AB.
+%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
+%% AB. All Rights Reserved.''
+%% 
+%%     $Id$
+%%
+%%----------------------------------------------------------------------
+%% Purpose: The top supervisor for tftp hangs under inets_sup.
+%%----------------------------------------------------------------------
+
+-module(tftp_sup).
+
+-behaviour(supervisor).
+
+%% API
+-export([start_link/1]).
+-export([start_child/1]).
+
+%% Supervisor callback
+-export([init/1]).
+
+%%%=========================================================================
+%%%  API
+%%%=========================================================================
+
+start_link(TftpServices) ->
+    supervisor:start_link({local, ?MODULE}, ?MODULE, [TftpServices]).
+
+start_child(Args) ->
+    supervisor:start_child(?MODULE, Args).
+    
+%%%=========================================================================
+%%%  Supervisor callback
+%%%=========================================================================
+
+init([Services]) when is_list(Services) ->
+    RestartStrategy = one_for_one,
+    MaxR = 10,
+    MaxT = 3600,
+    KillAfter = timer:seconds(3),
+    Children = [worker_spec(KillAfter, Options) || {tftpd, Options} <- Services],
+    {ok, {{RestartStrategy, MaxR, MaxT}, Children}}.
+
+%%%=========================================================================
+%%%  Internal functions
+%%%=========================================================================
+
+worker_spec(KillAfter, Options) ->
+    Modules = [proc_lib, tftp, tftp_engine],
+    KA = supervisor_timeout(KillAfter),
+    Name = unique_name(Options),
+    {Name, {tftp, start, [Options]}, permanent, KA, worker, Modules}.
+
+unique_name(Options) ->
+    case lists:keysearch(port, 1, Options) of
+	{value, {_, Port}} when is_integer(Port), Port > 0 -> 
+	    {tftpd, Port};
+	_ ->
+	    {tftpd, erlang:now()}
+    end.
+
+%% supervisor_spec(Name) ->
+%%     {Name, {Name, start, []}, permanent, infinity, supervisor,
+%%      [Name, supervisor]}.
+    
+-ifdef(debug_shutdown).
+supervisor_timeout(_KillAfter) -> timer:hours(24).
+-else.
+supervisor_timeout(KillAfter) -> KillAfter.
+-endif.