1 files changed, 133 insertions, 0 deletions
diff --git a/erts/emulator/test/socket_lib.erl b/erts/emulator/test/socket_lib.erl
new file mode 100644
index 0000000000..9d6524d467
--- /dev/null
+++ b/erts/emulator/test/socket_lib.erl
@@ -0,0 +1,133 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2018-2018. 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(socket_lib).
+
+-export([
+         sleep/1,
+         req/0, rep/0,
+         enc_req_msg/2, enc_rep_msg/2,
+         enc_msg/3, dec_msg/1,
+         request/3, reply/4,
+         f/2,
+         i/1, i/2,
+         e/2
+        ]).
+
+
+-define(REQ, 0).
+-define(REP, 1).
+
+
+%% ---
+
+sleep(T) ->
+    receive after T -> ok end.
+
+
+%% ---
+
+req() -> ?REQ.
+rep() -> ?REP.
+
+enc_req_msg(N, Data) ->
+    enc_msg(?REQ, N, Data).
+
+enc_rep_msg(N, Data) ->
+    enc_msg(?REP, N, Data).
+
+enc_msg(Type, N, Data) when is_list(Data) ->
+    enc_msg(Type, N, list_to_binary(Data));
+enc_msg(Type, N, Data) 
+  when is_integer(Type) andalso is_integer(N) andalso is_binary(Data) ->
+    <<Type:32/integer, N:32/integer, Data/binary>>.
+    
+dec_msg(<<?REQ:32/integer, N:32/integer, Data/binary>>) ->
+    {request, N, Data};
+dec_msg(<<?REP:32/integer, N:32/integer, Data/binary>>) ->
+    {reply, N, Data}.
+
+
+%% ---
+
+request(Tag, Pid, Request) ->
+    Ref = make_ref(),
+    Pid ! {Tag, self(), Ref, Request},
+    receive
+        {Tag, Pid, Ref, Reply} ->
+            Reply
+    end.
+    
+reply(Tag, Pid, Ref, Reply) ->
+    Pid ! {Tag, self(), Ref, Reply}.
+
+
+%% ---
+
+f(F, A) ->
+    lists:flatten(io_lib:format(F, A)).
+
+
+%% ---
+
+e(F, A) ->
+    p("<ERROR> " ++ F, A).
+
+i(F) ->
+    i(F, []).
+i(F, A) ->
+    p("*** " ++ F, A).
+
+p(F, A) ->
+    p(get(sname), F, A).
+
+p(SName, F, A) ->
+    io:format("[~s,~p][~s] " ++ F ++ "~n", 
+              [SName,self(),formated_timestamp()|A]).
+
+
+%% ---
+
+formated_timestamp() ->
+    format_timestamp(os:timestamp()).
+
+format_timestamp(Now) ->
+    N2T = fun(N) -> calendar:now_to_local_time(N) end,
+    format_timestamp(Now, N2T, true).
+
+format_timestamp({_N1, _N2, N3} = N, N2T, true) ->
+    FormatExtra = ".~.2.0w",
+    ArgsExtra   = [N3 div 10000],
+    format_timestamp(N, N2T, FormatExtra, ArgsExtra);
+format_timestamp({_N1, _N2, _N3} = N, N2T, false) ->
+    FormatExtra = "",
+    ArgsExtra   = [],
+    format_timestamp(N, N2T, FormatExtra, ArgsExtra).
+
+format_timestamp(N, N2T, FormatExtra, ArgsExtra) ->
+    {Date, Time}   = N2T(N),
+    {YYYY,MM,DD}   = Date,
+    {Hour,Min,Sec} = Time,
+    FormatDate =
+        io_lib:format("~.4w-~.2.0w-~.2.0w ~.2.0w:~.2.0w:~.2.0w" ++ FormatExtra,
+                      [YYYY, MM, DD, Hour, Min, Sec] ++ ArgsExtra),
+    lists:flatten(FormatDate).
+
+