ssl: Move PEM cache to a dedicated process

The PEM cache handling has proven to be too disruptive of the manager process.

1 files changed, 101 insertions, 0 deletions

diff --git a/lib/ssl/src/ssl_connection_sup.erl b/lib/ssl/src/ssl_connection_sup.erl
new file mode 100644
index 0000000000..1a1f43e683
--- /dev/null
+++ b/lib/ssl/src/ssl_connection_sup.erl
@@ -0,0 +1,101 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1998-2016. All Rights Reserved.
+%%
+%% 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
+%%
+%%     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%
+%%
+
+%%
+
+-module(ssl_connection_sup).
+
+-behaviour(supervisor).
+
+%% API
+-export([start_link/0]).
+
+%% Supervisor callback
+-export([init/1]).
+
+%%%=========================================================================
+%%%  API
+%%%=========================================================================
+
+-spec start_link() -> {ok, pid()} | ignore | {error, term()}.
+			
+start_link() ->
+    supervisor:start_link({local, ?MODULE}, ?MODULE, []).
+
+%%%=========================================================================
+%%%  Supervisor callback
+%%%=========================================================================
+
+init([]) ->    
+  
+    TLSConnetionManager = tls_connection_manager_child_spec(),
+    %% Handles emulated options so that they inherited by the accept
+    %% socket, even when setopts is performed on the listen socket
+    ListenOptionsTracker = listen_options_tracker_child_spec(), 
+    
+    DTLSConnetionManager = dtls_connection_manager_child_spec(),
+    DTLSUdpListeners = dtls_udp_listeners_spec(),
+
+    {ok, {{one_for_one, 10, 3600}, [TLSConnetionManager, 
+				    ListenOptionsTracker,
+				    DTLSConnetionManager, 
+				    DTLSUdpListeners
+				   ]}}.
+
+    
+%%--------------------------------------------------------------------
+%%% Internal functions
+%%--------------------------------------------------------------------
+
+tls_connection_manager_child_spec() ->
+    Name = tls_connection,  
+    StartFunc = {tls_connection_sup, start_link, []},
+    Restart = permanent, 
+    Shutdown = 4000,
+    Modules = [tls_connection_sup],
+    Type = supervisor,
+    {Name, StartFunc, Restart, Shutdown, Type, Modules}.
+
+dtls_connection_manager_child_spec() ->
+    Name = dtls_connection,
+    StartFunc = {dtls_connection_sup, start_link, []},
+    Restart = permanent,
+    Shutdown = 4000,
+    Modules = [dtls_connection_sup],
+    Type = supervisor,
+    {Name, StartFunc, Restart, Shutdown, Type, Modules}.
+
+listen_options_tracker_child_spec() ->
+    Name = tls_socket,  
+    StartFunc = {ssl_listen_tracker_sup, start_link, []},
+    Restart = permanent, 
+    Shutdown = 4000,
+    Modules = [tls_socket],
+    Type = supervisor,
+    {Name, StartFunc, Restart, Shutdown, Type, Modules}.
+
+dtls_udp_listeners_spec() ->
+    Name = dtls_udp_listener,  
+    StartFunc = {dtls_udp_sup, start_link, []},
+    Restart = permanent, 
+    Shutdown = 4000,
+    Modules = [],
+    Type = supervisor,
+    {Name, StartFunc, Restart, Shutdown, Type, Modules}.