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diff --git a/erts/emulator/test/esock-ttest b/erts/emulator/test/esock-ttest
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+#!/usr/bin/env escript
+
+%%
+%% %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%
+%%
+
+%% ==========================================================================
+%%
+%% This is a simple wrapper escript on top of the socket ttest program(s).
+%% The idea is to make it simple to run in a normal shell (bash).
+%%
+%% ==========================================================================
+
+-define(SECS(I), timer:seconds(I)).
+
+-define(CLIENT_MSG_1_MAX_OUTSTANDING, 100).
+-define(CLIENT_MSG_2_MAX_OUTSTANDING, 10).
+-define(CLIENT_MSG_3_MAX_OUTSTANDING, 1).
+
+main(Args) ->
+ State = process_args(Args),
+ exec(State),
+ ok.
+
+usage(ErrorString) when is_list(ErrorString) ->
+ eprint(ErrorString),
+ usage(),
+ erlang:halt(0).
+
+usage() ->
+ io:format("usage: ~s [options]"
+ "~n"
+ "~n This erlang script is used to start the (e)socket ttest "
+ "~n units (server or client)."
+ "~n"
+ "~n options: "
+ "~n --help Display this info and exit. "
+ "~n --server [server-options] Start a server. "
+ "~n There are no mandatory server options."
+ "~n --client client-options Start a client"
+ "~n Some client options are mandatory and"
+ "~n others optional."
+ "~n --active <active> boolean() | once."
+ "~n Valid for both client and server."
+ "~n Defaults to: false"
+ "~n --transport <transport> Which transport to use: gen|sock[:plain|msg]"
+ "~n gen: gen_tcp"
+ "~n sock: socket"
+ "~n plain: recv/send (default)"
+ "~n msg: recvmsg/sendmsg"
+ "~n Defaults to: sock:plain"
+ "~n --scon <addr>:<port> Address and port of the server."
+ "~n The address part is in the standard form:"
+ "~n \"a.b.c.d\"."
+ "~n Only valid for client."
+ "~n Mandatory."
+ "~n --msg-id <1|2|3> Choose which message to use during the test."
+ "~n Basically: "
+ "~n 1: small"
+ "~n 2: medium"
+ "~n 3: large"
+ "~n Defaults to: 1"
+ "~n --max-outstanding <Num> How many messages to send before waiting for"
+ "~n a reply."
+ "~n Valid only for client."
+ "~n Defaults to: "
+ "~n MsgID 1: 100"
+ "~n MsgID 2: 10"
+ "~n MsgID 3: 1"
+ "~n --runtime <Time> Time of the test in seconds."
+ "~n Only valid for client."
+ "~n Mandatory."
+ "~n Defaults to: 60 (seconds)"
+ "~n"
+ "~n"
+ "~n",
+ [scriptname()]),
+ ok.
+
+process_args(["--help"|_]) ->
+ usage();
+process_args(["--server"|ServerArgs]) ->
+ process_server_args(ServerArgs);
+process_args(["--client"|ClientArgs]) ->
+ process_client_args(ClientArgs);
+process_args(Args) ->
+ usage(f("Invalid Args: "
+ "~n ~p", [Args])).
+
+
+process_server_args(Args) ->
+ Defaults = #{role => server,
+ active => false,
+ transport => {sock, plain}},
+ process_server_args(Args, Defaults).
+
+process_server_args([], State) ->
+ State;
+
+process_server_args(["--active", Active|Args], State)
+ when ((Active =:= "false") orelse
+ (Active =:= "once") orelse
+ (Active =:= "true")) ->
+ process_server_args(Args, State#{active => list_to_atom(Active)});
+
+process_server_args(["--transport", "gen" | Args], State) ->
+ process_server_args(Args, State#{transport => gen});
+process_server_args(["--transport", "sock" | Args], State) ->
+ process_server_args(Args, State#{transport => {sock, plain}});
+process_server_args(["--transport", "sock:plain" | Args], State) ->
+ process_server_args(Args, State#{transport => {sock, plain}});
+process_server_args(["--transport", "sock:msg" | Args], State) ->
+ process_server_args(Args, State#{transport => {sock, msg}});
+
+process_server_args([Arg|_], _State) ->
+ usage(f("Invalid Server arg: ~s", [Arg])).
+
+
+process_client_args(Args) ->
+ Defaults = #{role => client,
+ active => false,
+ transport => {sock, plain},
+ %% Will cause error if not provided
+ %% Should be "addr:port"
+ server => undefined,
+ msg_id => 1,
+ %% Will be filled in based on msg_id if not provided
+ max_outstanding => undefined,
+ runtime => ?SECS(60)},
+ process_client_args(Args, Defaults).
+
+process_client_args([], State) ->
+ process_client_args_ensure_max_outstanding(State);
+
+process_client_args(["--active", Active|Args], State)
+ when ((Active =:= "false") orelse
+ (Active =:= "once") orelse
+ (Active =:= "true")) ->
+ process_client_args(Args, State#{active => list_to_atom(Active)});
+
+process_client_args(["--transport", "gen" | Args], State) ->
+ process_client_args(Args, State#{transport => gen});
+process_client_args(["--transport", "sock" | Args], State) ->
+ process_client_args(Args, State#{transport => {sock, plain}});
+process_client_args(["--transport", "sock:plain" | Args], State) ->
+ process_client_args(Args, State#{transport => {sock, plain}});
+process_client_args(["--transport", "sock:msg" | Args], State) ->
+ process_client_args(Args, State#{transport => {sock, msg}});
+
+process_client_args(["--msg-id", MsgID|Args], State)
+ when ((MsgID =:= "1") orelse
+ (MsgID =:= "2") orelse
+ (MsgID =:= "3")) ->
+ process_client_args(Args, State#{msg_id => list_to_integer(MsgID)});
+
+process_client_args(["--max-outstanding", Max|Args], State) ->
+ try list_to_integer(Max) of
+ I when (I > 0) ->
+ process_client_args(Args, State#{max_outstanding => I});
+ _ ->
+ usage(f("Invalid Max Outstanding: ~s", [Max]))
+ catch
+ _:_:_ ->
+ usage(f("Invalid Max Outstanding: ~s", [Max]))
+ end;
+
+process_client_args(["--scon", Server|Args], State) ->
+ case string:tokens(Server, [$:]) of
+ [AddrStr,PortStr] ->
+ Addr = case inet:parse_address(AddrStr) of
+ {ok, A} ->
+ A;
+ {error, _} ->
+ usage(f("Invalid Server Address: ~s", [AddrStr]))
+ end,
+ Port = try list_to_integer(PortStr) of
+ I when (I > 0) ->
+ I;
+ _ ->
+ usage(f("Invalid Server Port: ~s", [PortStr]))
+ catch
+ _:_:_ ->
+ usage(f("Invalid Server Port: ~s", [PortStr]))
+ end,
+ process_client_args(Args, State#{server => {Addr, Port}});
+ _ ->
+ usage(f("Invalid Server: ~s", [Server]))
+ end;
+
+process_client_args(["--runtime", T|Args], State) ->
+ try list_to_integer(T) of
+ I when (I > 0) ->
+ process_client_args(Args, State#{runtime => ?SECS(I)});
+ _ ->
+ usage(f("Invalid Run Time: ~s", [T]))
+ catch
+ _:_:_ ->
+ usage(f("Invalid Run Time: ~s", [T]))
+ end;
+
+process_client_args([Arg|_], _State) ->
+ usage(f("Invalid Client arg: ~s", [Arg])).
+
+
+process_client_args_ensure_max_outstanding(
+ #{msg_id := 1,
+ max_outstanding := undefined} = State) ->
+ State#{max_outstanding => ?CLIENT_MSG_1_MAX_OUTSTANDING};
+process_client_args_ensure_max_outstanding(
+ #{msg_id := 2,
+ max_outstanding := undefined} = State) ->
+ State#{max_outstanding => ?CLIENT_MSG_2_MAX_OUTSTANDING};
+process_client_args_ensure_max_outstanding(
+ #{msg_id := 3,
+ max_outstanding := undefined} = State) ->
+ State#{max_outstanding => ?CLIENT_MSG_3_MAX_OUTSTANDING};
+process_client_args_ensure_max_outstanding(
+ #{msg_id := MsgID,
+ max_outstanding := MaxOutstanding} = State)
+ when ((MsgID =:= 1) orelse
+ (MsgID =:= 2) orelse
+ (MsgID =:= 3)) andalso
+ (is_integer(MaxOutstanding) andalso (MaxOutstanding > 0)) ->
+ State;
+process_client_args_ensure_max_outstanding(
+ #{msg_id := MsgID,
+ max_outstanding := MaxOutstanding}) ->
+ usage(f("Invalid Msg ID (~w) and Max Outstanding (~w)",
+ [MsgID, MaxOutstanding])).
+
+
+
+%% ==========================================================================
+
+exec(#{role := server,
+ active := Active,
+ transport := gen}) ->
+ case socket_test_ttest_tcp_server_gen:start(Active) of
+ {ok, {Pid, _}} ->
+ MRef = erlang:monitor(process, Pid),
+ receive
+ {'DOWN', MRef, process, Pid, Info} ->
+ Info
+ end;
+ {error, Reason} ->
+ eprint(f("Failed starting server: "
+ "~n ~p", [Reason])),
+ error
+ end;
+exec(#{role := server,
+ active := Active,
+ transport := {sock, Method}}) ->
+ case socket_test_ttest_tcp_server_socket:start(Method, Active) of
+ {ok, {Pid, _}} ->
+ MRef = erlang:monitor(process, Pid),
+ receive
+ {'DOWN', MRef, process, Pid, Info} ->
+ Info
+ end;
+ {error, Reason} ->
+ eprint(f("Failed starting server: "
+ "~n ~p", [Reason])),
+ error
+ end;
+
+exec(#{role := client,
+ server := undefined}) ->
+ usage("Mandatory option 'server' not provided");
+exec(#{role := client,
+ server := {Addr, Port},
+ active := Active,
+ transport := gen,
+ msg_id := MsgID,
+ max_outstanding := MaxOutstanding,
+ runtime := RunTime}) ->
+ case socket_test_ttest_tcp_client_gen:start(Active,
+ Addr, Port,
+ MsgID, MaxOutstanding,
+ RunTime) of
+ {ok, Pid} ->
+ MRef = erlang:monitor(process, Pid),
+ receive
+ {'DOWN', MRef, process, Pid, Info} ->
+ Info
+ end;
+ {error, Reason} ->
+ eprint(f("Failed starting server: "
+ "~n ~p", [Reason])),
+ error
+ end;
+exec(#{role := client,
+ server := {Addr, Port},
+ active := Active,
+ transport := {sock, Method},
+ msg_id := MsgID,
+ max_outstanding := MaxOutstanding,
+ runtime := RunTime}) ->
+ case socket_test_ttest_tcp_client_socket:start(Method,
+ Active,
+ Addr, Port,
+ MsgID, MaxOutstanding,
+ RunTime) of
+ {ok, Pid} ->
+ MRef = erlang:monitor(process, Pid),
+ receive
+ {'DOWN', MRef, process, Pid, Info} ->
+ Info
+ end;
+ {error, Reason} ->
+ eprint(f("Failed starting server: "
+ "~n ~p", [Reason])),
+ error
+ end;
+exec(_) ->
+ usage("Unexpected option combo"),
+ ok.
+
+
+
+%% ==========================================================================
+
+f(F, A) ->
+ socket_test_ttest_lib:format(F, A).
+
+eprint(ErrorString) when is_list(ErrorString) ->
+ print("<ERROR> " ++ ErrorString ++ "~n", []).
+
+print(F, A) ->
+ io:format(F ++ "~n", A).
+
+scriptname() ->
+ FullName = escript:script_name(),
+ filename:basename(FullName).
+
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