diff options
Diffstat (limited to 'lib/kernel/test/gen_tcp_misc_SUITE.erl')
| -rw-r--r-- | lib/kernel/test/gen_tcp_misc_SUITE.erl | 1171 |
1 files changed, 733 insertions, 438 deletions
diff --git a/lib/kernel/test/gen_tcp_misc_SUITE.erl b/lib/kernel/test/gen_tcp_misc_SUITE.erl index 81c6dcd0fd..04c0c48e3a 100644 --- a/lib/kernel/test/gen_tcp_misc_SUITE.erl +++ b/lib/kernel/test/gen_tcp_misc_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1998-2014. All Rights Reserved. +%% Copyright Ericsson AB 1998-2018. 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. @@ -19,15 +19,15 @@ %% -module(gen_tcp_misc_SUITE). --include_lib("test_server/include/test_server.hrl"). - -%-compile(export_all). +-include_lib("common_test/include/ct.hrl"). -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2, controlling_process/1, controlling_process_self/1, no_accept/1, close_with_pending_output/1, active_n/1, - data_before_close/1, iter_max_socks/1, get_status/1, + data_before_close/1, + iter_max_socks/0, iter_max_socks/1, + get_status/1, passive_sockets/1, accept_closed_by_other_process/1, init_per_testcase/2, end_per_testcase/2, otp_3924/1, otp_3924_sender/4, closed_socket/1, @@ -41,7 +41,8 @@ busy_send/1, busy_disconnect_passive/1, busy_disconnect_active/1, fill_sendq/1, partial_recv_and_close/1, partial_recv_and_close_2/1,partial_recv_and_close_3/1,so_priority/1, - % Accept tests + recvtos/1, recvttl/1, recvtosttl/1, recvtclass/1, + %% Accept tests primitive_accept/1,multi_accept_close_listen/1,accept_timeout/1, accept_timeouts_in_order/1,accept_timeouts_in_order2/1, accept_timeouts_in_order3/1,accept_timeouts_in_order4/1, @@ -50,49 +51,24 @@ killing_acceptor/1,killing_multi_acceptors/1,killing_multi_acceptors2/1, several_accepts_in_one_go/1, accept_system_limit/1, active_once_closed/1, send_timeout/1, send_timeout_active/1, - otp_7731/1, zombie_sockets/1, otp_7816/1, otp_8102/1, wrapping_oct/1, - otp_9389/1]). + otp_7731/1, zombie_sockets/1, otp_7816/1, otp_8102/1, + wrapping_oct/0, wrapping_oct/1, otp_9389/1, otp_13939/1, + otp_12242/1]). %% Internal exports. -export([sender/3, not_owner/1, passive_sockets_server/2, priority_server/1, oct_acceptor/1, otp_7731_server/1, zombie_server/2, do_iter_max_socks/2]). -init_per_testcase(wrapping_oct, Config) when is_list(Config) -> - Dog = case os:type() of - {ose,_} -> - test_server:timetrap(test_server:minutes(20)); - _Else -> - test_server:timetrap(test_server:seconds(600)) - end, - [{watchdog, Dog}|Config]; -init_per_testcase(iter_max_socks, Config) when is_list(Config) -> - Dog = case os:type() of - {win32,_} -> - test_server:timetrap(test_server:minutes(30)); - _Else -> - test_server:timetrap(test_server:seconds(240)) - end, - [{watchdog, Dog}|Config]; -init_per_testcase(accept_system_limit, Config) when is_list(Config) -> - case os:type() of - {ose,_} -> - {skip,"Skip in OSE"}; - _ -> - Dog = test_server:timetrap(test_server:seconds(240)), - [{watchdog,Dog}|Config] - end; -init_per_testcase(wrapping_oct, Config) when is_list(Config) -> - Dog = test_server:timetrap(test_server:seconds(600)), - [{watchdog, Dog}|Config]; -init_per_testcase(_Func, Config) when is_list(Config) -> - Dog = test_server:timetrap(test_server:seconds(240)), - [{watchdog, Dog}|Config]. -end_per_testcase(_Func, Config) -> - Dog = ?config(watchdog, Config), - test_server:timetrap_cancel(Dog). - -suite() -> [{ct_hooks,[ts_install_cth]}]. +init_per_testcase(_Func, Config) -> + Config. + +end_per_testcase(_Func, _Config) -> + ok. + +suite() -> + [{ct_hooks,[ts_install_cth]}, + {timetrap,{minutes,4}}]. all() -> [controlling_process, controlling_process_self, no_accept, @@ -109,7 +85,8 @@ all() -> busy_disconnect_passive, busy_disconnect_active, fill_sendq, partial_recv_and_close, partial_recv_and_close_2, partial_recv_and_close_3, - so_priority, primitive_accept, + so_priority, recvtos, recvttl, recvtosttl, + recvtclass, primitive_accept, multi_accept_close_listen, accept_timeout, accept_timeouts_in_order, accept_timeouts_in_order2, accept_timeouts_in_order3, accept_timeouts_in_order4, @@ -119,7 +96,8 @@ all() -> killing_multi_acceptors2, several_accepts_in_one_go, accept_system_limit, active_once_closed, send_timeout, send_timeout_active, otp_7731, wrapping_oct, - zombie_sockets, otp_7816, otp_8102, otp_9389]. + zombie_sockets, otp_7816, otp_8102, otp_9389, + otp_12242]. groups() -> []. @@ -136,11 +114,13 @@ init_per_group(_GroupName, Config) -> end_per_group(_GroupName, Config) -> Config. -default_options(doc) -> - ["Tests kernel application variables inet_default_listen_options and " - "inet_default_connect_options"]; -default_options(suite) -> - []; +-define(UNIQ_NODE_NAME, + list_to_atom(?MODULE_STRING ++ "__" ++ + atom_to_list(?FUNCTION_NAME) ++ "_" ++ + integer_to_list(erlang:unique_integer([positive])))). + +%% Tests kernel application variables inet_default_listen_options and +%% inet_default_connect_options. default_options(Config) when is_list(Config) -> %% First check the delay_send option {true,true,true}=do_delay_send_1(), @@ -215,7 +195,7 @@ default_options(Config) when is_list(Config) -> do_delay_on_other_node(XArgs, Function) -> Dir = filename:dirname(code:which(?MODULE)), - {ok,Node} = test_server:start_node(test_default_options_slave,slave, + {ok,Node} = test_server:start_node(?UNIQ_NODE_NAME, slave, [{args,"-pa " ++ Dir ++ " " ++ XArgs}]), Res = rpc:call(Node,erlang,apply,[Function,[]]), test_server:stop_node(Node), @@ -312,11 +292,9 @@ do_delay_send_7() -> gen_tcp:close(LS), {B1,B2,B3}. -controlling_process(doc) -> - ["Open a listen port and change controlling_process for it", - "The result should be ok of done by the owner process," - "Otherwise is should return {error,not_owner} or similar"]; -controlling_process(suite) -> []; +%% Open a listen port and change controlling_process for it +%% The result should be ok of done by the owner process, +%% Otherwise is should return {error,not_owner} or similar. controlling_process(Config) when is_list(Config) -> {ok,S} = gen_tcp:listen(0,[]), Pid2 = spawn(?MODULE,not_owner,[S]), @@ -345,9 +323,8 @@ not_owner(S) -> ok end. -controlling_process_self(doc) -> - ["Open a listen port and assign the controlling process to " - "it self, then exit and make sure the port is closed properly."]; +%% Open a listen port and assign the controlling process to +%% it self, then exit and make sure the port is closed properly. controlling_process_self(Config) when is_list(Config) -> S = self(), process_flag(trap_exit,true), @@ -371,11 +348,9 @@ controlling_process_self(Config) when is_list(Config) -> end. -no_accept(doc) -> - ["Open a listen port and connect to it, then close the listen port ", - "without doing any accept. The connected socket should receive ", - "a tcp_closed message."]; -no_accept(suite) -> []; +%% Open a listen port and connect to it, then close the listen port +%% without doing any accept. The connected socket should receive +%% a tcp_closed message. no_accept(Config) when is_list(Config) -> {ok, L} = gen_tcp:listen(0, []), {ok, {_, Port}} = inet:sockname(L), @@ -385,14 +360,12 @@ no_accept(Config) when is_list(Config) -> {tcp_closed, Client} -> ok after 5000 -> - test_server:fail(never_closed) + ct:fail(never_closed) end. -close_with_pending_output(doc) -> - ["Send several packets to a socket and close it. All packets should arrive ", - "to the other end."]; -close_with_pending_output(suite) -> []; +%% Send several packets to a socket and close it. All packets should +%% arrive to the other end. close_with_pending_output(Config) when is_list(Config) -> {ok, L} = gen_tcp:listen(0, [binary, {active, false}]), {ok, {_, Port}} = inet:sockname(L), @@ -408,16 +381,16 @@ close_with_pending_output(Config) when is_list(Config) -> gen_tcp:close(A), gen_tcp:close(L); {ok, Bin} -> - test_server:fail({small_packet, + ct:fail({small_packet, byte_size(Bin)}); Error -> - test_server:fail({unexpected, Error}) + ct:fail({unexpected, Error}) end, ok; {error, no_remote_hosts} -> {skipped,"No remote hosts"}; {error, Other} -> - ?t:fail({failed_to_start_slave_node, Other}) + ct:fail({failed_to_start_slave_node, Other}) end. sender(Port, Packets, Host) -> @@ -435,9 +408,7 @@ send_loop(Sock, Data, Left) -> send_loop(Sock, Data, Left-1). %% Test {active,N} option -active_n(doc) -> - ["Verify operation of the {active,N} option."]; -active_n(suite) -> []; +%% Verify operation of the {active,N} option. active_n(Config) when is_list(Config) -> N = 3, LS = ok(gen_tcp:listen(0, [{active,N}])), @@ -547,9 +518,7 @@ active_n(Config) when is_list(Config) -> %% I expect propagation of a close to be quite fast %% so 100 ms seems reasonable. -otp_3924(doc) -> - ["Tests that a socket can be closed fast enough."]; -otp_3924(suite) -> []; +%% Tests that a socket can be closed fast enough. otp_3924(Config) when is_list(Config) -> MaxDelay = (case has_superfluous_schedulers() of true -> 4; @@ -567,8 +536,8 @@ otp_3924_1(MaxDelay) -> {ok, Node} = start_node(otp_3924), DataLen = 100*1024, Data = otp_3924_data(DataLen), - % Repeat the test a couple of times to prevent the test from passing - % by chance. + %% Repeat the test a couple of times to prevent the test from passing + %% by chance. repeat(10, fun(N) -> ok = otp_3924(MaxDelay, Node, Data, DataLen, N) end), @@ -607,17 +576,17 @@ otp_3924_receive_data(LSock, Sender, MaxDelay, Len, N) -> process_flag(priority, OP), receive {'EXIT', _, TimeoutRef} -> - test_server:fail({close_not_fast_enough,MaxDelay,N}); + ct:fail({close_not_fast_enough,MaxDelay,N}); {'EXIT', Sender, Reason} -> - test_server:fail({sender_exited, Reason}); + ct:fail({sender_exited, Reason}); {'EXIT', _Other, Reason} -> - test_server:fail({linked_process_exited, Reason}) + ct:fail({linked_process_exited, Reason}) after 0 -> case Data of {'EXIT', {A,B}} -> - test_server:fail({A,B,N}); + ct:fail({A,B,N}); {'EXIT', Failure} -> - test_server:fail(Failure); + ct:fail(Failure); _ -> Data end @@ -676,8 +645,7 @@ otp_3924_sender(Receiver, Host, Port, Data) -> end. -data_before_close(doc) -> - ["Tests that a huge amount of data can be received before a close."]; +%% Tests that a huge amount of data can be received before a close. data_before_close(Config) when is_list(Config) -> {ok, L} = gen_tcp:listen(0, [binary]), {ok, {_, TcpPort}} = inet:sockname(L), @@ -689,7 +657,7 @@ data_before_close(Config) when is_list(Config) -> io:format("Result: ~p", [Result]); {Wrong, Result} -> io:format("Result: ~p", [Result]), - test_server:fail({wrong_count, Wrong}) + ct:fail({wrong_count, Wrong}) end, ok. @@ -714,11 +682,9 @@ make_zero_packet(N) when N rem 2 == 0 -> make_zero_packet(N) -> P = make_zero_packet(N div 2), [0, P|P]. -get_status(doc) -> - ["OTP-2924", - "test that the socket process does not crash when sys:get_status(Pid)", - "is called."]; -get_status(suite) -> []; + +%% OTP-2924. Test that the socket process does not crash when +%% sys:get_status(Pid) is called. get_status(Config) when is_list(Config) -> {ok,{socket,Pid,_,_}} = gen_tcp:listen(5678,[]), {status,Pid,_,_} = sys:get_status(Pid). @@ -726,9 +692,11 @@ get_status(Config) when is_list(Config) -> -define(RECOVER_SLEEP, 60000). -define(RETRY_SLEEP, 15000). -iter_max_socks(doc) -> - ["Open as many sockets as possible. Do this several times and check ", - "that we get the same number of sockets every time."]; +iter_max_socks() -> + [{timetrap,{minutes,30}}]. + +%% Open as many sockets as possible. Do this several times and check +%% that we get the same number of sockets every time. iter_max_socks(Config) when is_list(Config) -> N = case os:type() of {win32,_} -> 10; _ -> 20 end, %% Run on a different node in order to limit the effect if this test fails. @@ -757,7 +725,7 @@ do_iter_max_socks(N, First) when is_integer(First) -> true -> io:format("Sleeping for ~p seconds...~n", [?RETRY_SLEEP/1000]), - ?t:sleep(?RETRY_SLEEP), + ct:sleep(?RETRY_SLEEP), io:format("Trying again...~n", []), RetryMS = max_socks(), if RetryMS == First -> @@ -775,10 +743,10 @@ all_equal([Rule | T]) -> all_equal(Rule, [Rule | T]) -> all_equal(Rule, T); all_equal(_, [_ | _]) -> - ?t:sleep(?RECOVER_SLEEP), % Wait a while and *hope* that we'll - % recover so other tests won't be - % affected. - ?t:fail(max_socket_mismatch); + ct:sleep(?RECOVER_SLEEP), % Wait a while and *hope* that we'll + %% recover so other tests won't be + %% affected. + ct:fail(max_socket_mismatch); all_equal(_Rule, []) -> ok. @@ -820,21 +788,20 @@ start_remote(Name) -> Pa = filename:dirname(code:which(?MODULE)), test_server:start_node(Name, slave, [{remote, true}, {args, "-pa " ++ Pa}]). -passive_sockets(doc) -> - ["Tests that when 'the other side' on a passive socket closes, the connecting", - "side still can read until the end of data."]; +%% Tests that when 'the other side' on a passive socket closes, the +%% connecting, side still can read until the end of data. passive_sockets(Config) when is_list(Config) -> spawn_link(?MODULE, passive_sockets_server, [[{active,false}],self()]), receive {socket,Port} -> ok end, - ?t:sleep(500), + ct:sleep(500), case gen_tcp:connect("localhost", Port, [{active, false}]) of {ok, Sock} -> passive_sockets_read(Sock); Error -> - ?t:fail({"Could not connect to server", Error}) + ct:fail({"Could not connect to server", Error}) end. %% @@ -850,7 +817,7 @@ passive_sockets_read(Sock) -> gen_tcp:close(Sock); Error -> gen_tcp:close(Sock), - ?t:fail({"Did not get {error, closed} before other error", Error}) + ct:fail({"Did not get {error, closed} before other error", Error}) end. passive_sockets_server(Opts, Parent) -> @@ -860,17 +827,17 @@ passive_sockets_server(Opts, Parent) -> Parent ! {socket,Port}, passive_sockets_server_accept(LSock); Error -> - ?t:fail({"Could not create listen socket", Error}) + ct:fail({"Could not create listen socket", Error}) end. passive_sockets_server_accept(Sock) -> case gen_tcp:accept(Sock) of {ok, Socket} -> - ?t:sleep(500), % Simulate latency + timer:sleep(500), % Simulate latency passive_sockets_server_send(Socket, 5), passive_sockets_server_accept(Sock); Error -> - ?t:fail({"Could not accept connection", Error}) + ct:fail({"Could not accept connection", Error}) end. passive_sockets_server_send(Socket, 0) -> @@ -880,16 +847,15 @@ passive_sockets_server_send(Socket, X) -> Data = lists:duplicate(1024*X, $a), case gen_tcp:send(Socket, Data) of ok -> - ?t:sleep(50), % Simulate some processing. + ct:sleep(50), % Simulate some processing. passive_sockets_server_send(Socket, X-1); {error, _Reason} -> - ?t:fail("Failed to send data") + ct:fail("Failed to send data") end. -accept_closed_by_other_process(doc) -> - ["Tests the return value from gen_tcp:accept when ", - "the socket is closed from another process. (OTP-3817)"]; +%% Tests the return value from gen_tcp:accept when +%% the socket is closed from another process. (OTP-3817) accept_closed_by_other_process(Config) when is_list(Config) -> Parent = self(), {ok, ListenSocket} = gen_tcp:listen(0, []), @@ -904,7 +870,7 @@ accept_closed_by_other_process(Config) when is_list(Config) -> {Child, {error, closed}} -> ok; {Child, Other} -> - ?t:fail({"Wrong result of gen_tcp:accept", Other}) + ct:fail({"Wrong result of gen_tcp:accept", Other}) end. repeat(N, Fun) -> @@ -917,10 +883,7 @@ repeat(_, _, _) -> ok. -closed_socket(suite) -> - []; -closed_socket(doc) -> - ["Tests the response when using a closed socket as argument"]; +%% Tests the response when using a closed socket as argument. closed_socket(Config) when is_list(Config) -> {ok, LS1} = gen_tcp:listen(0, []), erlang:yield(), @@ -932,7 +895,7 @@ closed_socket(Config) when is_list(Config) -> %% in inet_db processes the 'EXIT' message from the port, %% the socket is unregistered. %% - %% test_server:sleep(test_server:seconds(2)), + %% ct:sleep({seconds,2}) %% {error, R_send} = gen_tcp:send(LS1, "data"), {error, R_recv} = gen_tcp:recv(LS1, 17), @@ -974,7 +937,7 @@ shutdown_common(Active) -> do_sort(P, []), receive Any -> - ?t:fail({unexpected_message,Any}) + ct:fail({unexpected_message,Any}) after 0 -> ok end. @@ -1055,7 +1018,7 @@ shutdown_pending(Config) when is_list(Config) -> io:format("~p\n", [Msg]), N = list_to_integer(Msg) - 5; Other -> - ?t:fail({unexpected,Other}) + ct:fail({unexpected,Other}) end, ok. @@ -1107,9 +1070,9 @@ show_econnreset_active(Config) when is_list(Config) -> {tcp_closed, S} -> ok; Other -> - ?t:fail({unexpected1, Other}) + ct:fail({unexpected1, Other}) after 1000 -> - ?t:fail({timeout, {server, no_tcp_closed}}) + ct:fail({timeout, {server, no_tcp_closed}}) end, %% Now test with option switched on. @@ -1128,14 +1091,14 @@ show_econnreset_active(Config) when is_list(Config) -> {tcp_closed, S1} -> ok; Other1 -> - ?t:fail({unexpected2, Other1}) + ct:fail({unexpected2, Other1}) after 1 -> - ?t:fail({timeout, {server, no_tcp_closed}}) + ct:fail({timeout, {server, no_tcp_closed}}) end; Other2 -> - ?t:fail({unexpected3, Other2}) + ct:fail({unexpected3, Other2}) after 1000 -> - ?t:fail({timeout, {server, no_tcp_error}}) + ct:fail({timeout, {server, no_tcp_error}}) end. show_econnreset_active_once(Config) when is_list(Config) -> @@ -1149,7 +1112,7 @@ show_econnreset_active_once(Config) when is_list(Config) -> ok = gen_tcp:close(L), ok = inet:setopts(Client, [{linger, {true, 0}}]), ok = gen_tcp:close(Client), - ok = ?t:sleep(20), + ok = ct:sleep(20), ok = receive Msg -> {unexpected_msg, Msg} after 0 -> ok end, ok = inet:setopts(S, [{active, once}]), receive @@ -1158,14 +1121,14 @@ show_econnreset_active_once(Config) when is_list(Config) -> {tcp_closed, S} -> ok; Other1 -> - ?t:fail({unexpected1, Other1}) + ct:fail({unexpected1, Other1}) after 1 -> - ?t:fail({timeout, {server, no_tcp_closed}}) + ct:fail({timeout, {server, no_tcp_closed}}) end; Other2 -> - ?t:fail({unexpected2, Other2}) + ct:fail({unexpected2, Other2}) after 1000 -> - ?t:fail({timeout, {server, no_tcp_error}}) + ct:fail({timeout, {server, no_tcp_error}}) end. show_econnreset_passive(Config) when is_list(Config) -> @@ -1177,7 +1140,7 @@ show_econnreset_passive(Config) when is_list(Config) -> ok = gen_tcp:close(L), ok = inet:setopts(S, [{linger, {true, 0}}]), ok = gen_tcp:close(S), - ok = ?t:sleep(1), + ok = ct:sleep(1), {error, closed} = gen_tcp:recv(Client, 0), %% Now test with option switched on. @@ -1190,7 +1153,7 @@ show_econnreset_passive(Config) when is_list(Config) -> ok = gen_tcp:close(L1), ok = inet:setopts(S1, [{linger, {true, 0}}]), ok = gen_tcp:close(S1), - ok = ?t:sleep(1), + ok = ct:sleep(1), {error, econnreset} = gen_tcp:recv(Client1, 0). econnreset_after_sync_send(Config) when is_list(Config) -> @@ -1202,7 +1165,7 @@ econnreset_after_sync_send(Config) when is_list(Config) -> ok = gen_tcp:close(L), ok = inet:setopts(S, [{linger, {true, 0}}]), ok = gen_tcp:close(S), - ok = ?t:sleep(20), + ok = ct:sleep(20), {error, closed} = gen_tcp:send(Client, "Whatever"), %% Now test with option switched on. @@ -1215,7 +1178,7 @@ econnreset_after_sync_send(Config) when is_list(Config) -> ok = gen_tcp:close(L1), ok = inet:setopts(S1, [{linger, {true, 0}}]), ok = gen_tcp:close(S1), - ok = ?t:sleep(20), + ok = ct:sleep(20), {error, econnreset} = gen_tcp:send(Client1, "Whatever"). econnreset_after_async_send_active(Config) when is_list(Config) -> @@ -1232,23 +1195,23 @@ econnreset_after_async_send_active(Config) when is_list(Config) -> case erlang:port_info(Client, queue_size) of {queue_size, N} when N > 0 -> ok; {queue_size, 0} when OS =:= win32 -> ok; - {queue_size, 0} = T -> ?t:fail(T) + {queue_size, 0} = T -> ct:fail(T) end, ok = gen_tcp:send(S, "Whatever"), - ok = ?t:sleep(20), + ok = ct:sleep(20), ok = inet:setopts(S, [{linger, {true, 0}}]), ok = gen_tcp:close(S), - ok = ?t:sleep(20), + ok = ct:sleep(20), receive {tcp, Client, "Whatever"} -> receive {tcp_closed, Client} -> ok; Other1 -> - ?t:fail({unexpected1, Other1}) + ct:fail({unexpected1, Other1}) end; Other2 -> - ?t:fail({unexpected2, Other2}) + ct:fail({unexpected2, Other2}) end, %% Now test with option switched on. @@ -1263,13 +1226,13 @@ econnreset_after_async_send_active(Config) when is_list(Config) -> case erlang:port_info(Client1, queue_size) of {queue_size, N1} when N1 > 0 -> ok; {queue_size, 0} when OS =:= win32 -> ok; - {queue_size, 0} = T1 -> ?t:fail(T1) + {queue_size, 0} = T1 -> ct:fail(T1) end, ok = gen_tcp:send(S1, "Whatever"), - ok = ?t:sleep(20), + ok = ct:sleep(20), ok = inet:setopts(S1, [{linger, {true, 0}}]), ok = gen_tcp:close(S1), - ok = ?t:sleep(20), + ok = ct:sleep(20), receive {tcp, Client1, "Whatever"} -> receive @@ -1278,13 +1241,13 @@ econnreset_after_async_send_active(Config) when is_list(Config) -> {tcp_closed, Client1} -> ok; Other3 -> - ?t:fail({unexpected3, Other3}) + ct:fail({unexpected3, Other3}) end; Other4 -> - ?t:fail({unexpected4, Other4}) + ct:fail({unexpected4, Other4}) end; Other5 -> - ?t:fail({unexpected5, Other5}) + ct:fail({unexpected5, Other5}) end. econnreset_after_async_send_active_once(Config) when is_list(Config) -> @@ -1302,13 +1265,13 @@ econnreset_after_async_send_active_once(Config) when is_list(Config) -> case erlang:port_info(Client, queue_size) of {queue_size, N} when N > 0 -> ok; {queue_size, 0} when OS =:= win32 -> ok; - {queue_size, 0} = T -> ?t:fail(T) + {queue_size, 0} = T -> ct:fail(T) end, ok = gen_tcp:send(S, "Whatever"), - ok = ?t:sleep(20), + ok = ct:sleep(20), ok = inet:setopts(S, [{linger, {true, 0}}]), ok = gen_tcp:close(S), - ok = ?t:sleep(20), + ok = ct:sleep(20), ok = receive Msg -> {unexpected_msg, Msg} after 0 -> ok end, ok = inet:setopts(Client, [{active, once}]), receive @@ -1317,10 +1280,10 @@ econnreset_after_async_send_active_once(Config) when is_list(Config) -> {tcp_closed, Client} -> ok; Other -> - ?t:fail({unexpected1, Other}) + ct:fail({unexpected1, Other}) end; Other -> - ?t:fail({unexpected2, Other}) + ct:fail({unexpected2, Other}) end. econnreset_after_async_send_passive(Config) when is_list(Config) -> @@ -1341,10 +1304,10 @@ econnreset_after_async_send_passive(Config) when is_list(Config) -> case erlang:port_info(Client, queue_size) of {queue_size, N} when N > 0 -> ok; {queue_size, 0} when OS =:= win32 -> ok; - {queue_size, 0} = T -> ?t:fail(T) + {queue_size, 0} = T -> ct:fail(T) end, ok = gen_tcp:close(S), - ok = ?t:sleep(20), + ok = ct:sleep(20), {error, closed} = gen_tcp:recv(Client, 0), %% Now test with option switched on. @@ -1360,7 +1323,7 @@ econnreset_after_async_send_passive(Config) when is_list(Config) -> ok = gen_tcp:send(S1, "Whatever"), ok = gen_tcp:send(Client1, Payload), ok = gen_tcp:close(S1), - ok = ?t:sleep(20), + ok = ct:sleep(20), {error, econnreset} = gen_tcp:recv(Client1, 0). %% @@ -1387,11 +1350,11 @@ linger_zero(Config) when is_list(Config) -> case erlang:port_info(Client, queue_size) of {queue_size, N} when N > 0 -> ok; {queue_size, 0} when OS =:= win32 -> ok; - {queue_size, 0} = T -> ?t:fail(T) + {queue_size, 0} = T -> ct:fail(T) end, ok = inet:setopts(Client, [{linger, {true, 0}}]), ok = gen_tcp:close(Client), - ok = ?t:sleep(1), + ok = ct:sleep(1), undefined = erlang:port_info(Client, connected), {error, econnreset} = gen_tcp:recv(S, PayloadSize). @@ -1466,7 +1429,7 @@ busy_send_loop(Server, Client, N) -> busy_send_2(Server, Client, N+1) after 10000 -> %% If this happens, see busy_send_srv - ?t:fail({timeout,{server,not_send,flush([])}}) + ct:fail({timeout,{server,not_send,flush([])}}) end end. @@ -1477,7 +1440,7 @@ busy_send_2(Server, Client, _N) -> {Server,[closed]} -> receive {Client,[0,{error,closed}]} -> ok end after 10000 -> - ?t:fail({timeout,{server,not_closed,flush([])}}) + ct:fail({timeout,{server,not_closed,flush([])}}) end. busy_send_srv(L, Master, Msg) -> @@ -1567,7 +1530,7 @@ busy_disconnect_active_send(S, Data) -> {error,closed} -> receive {tcp_closed,S} -> ok; - _Other -> ?t:fail() + _Other -> ct:fail(failed) end end. @@ -1613,52 +1576,56 @@ fill_sendq(Config) when is_list(Config) -> Master = self(), Server = spawn_link(fun () -> - {ok,L} = gen_tcp:listen - (0, [{active,false},binary, - {reuseaddr,true},{packet,0}]), + {ok,L} = gen_tcp:listen(0, [{active,false},binary, + {reuseaddr,true},{packet,0}]), {ok,Port} = inet:port(L), Master ! {self(),client, fill_sendq_client(Port, Master)}, fill_sendq_srv(L, Master) end), io:format("~p Server~n", [Server]), - receive {Server,client,Client} -> - io:format("~p Client~n", [Client]), - receive {Server,reader,Reader} -> - io:format("~p Reader~n", [Reader]), - fill_sendq_loop(Server, Client, Reader) + receive + {Server,client,Client} -> + io:format("~p Client~n", [Client]), + receive + {Server,reader,Reader} -> + io:format("~p Reader~n", [Reader]), + fill_sendq_loop(Server, Client, Reader) end end. fill_sendq_loop(Server, Client, Reader) -> %% Master %% - receive {Server,send} -> + receive + {Server,send} -> fill_sendq_loop(Server, Client, Reader) after 2000 -> %% Send queue full, sender blocked -> close client. io:format("Send timeout, closing Client...~n", []), Client ! {self(),close}, - receive {Server,[{error,closed}]} -> - io:format("Got server closed.~n"), - receive {Reader,[{error,closed}]} -> - io:format - ("Got reader closed.~n"), - ok - after 3000 -> - ?t:fail({timeout,{closed,reader}}) - end; - {Reader,[{error,closed}]} -> - io:format("Got reader closed.~n"), - receive {Server,[{error,closed}]} -> - io:format("Got server closed~n"), - ok - after 3000 -> - ?t:fail({timeout,{closed,server}}) - end - after 3000 -> - ?t:fail({timeout,{closed,[server,reader]}}) - end + receive + {Server,[{error,closed}]} -> + io:format("Got server closed.~n"), + receive + {Reader,[{error,closed}]} -> + io:format("Got reader closed.~n"), + ok + after 3000 -> + ct:fail({timeout,{closed,reader}}) + end; + {Reader,[{error,closed}]} -> + io:format("Got reader closed.~n"), + receive + {Server,[{error,closed}]} -> + io:format("Got server closed~n"), + ok + after 3000 -> + ct:fail({timeout,{closed,server}}) + end + after 3000 -> + ct:fail({timeout,{closed,[server,reader]}}) + end end. fill_sendq_srv(L, Master) -> @@ -1865,7 +1832,7 @@ test_prio_accept_async() -> spawn(?MODULE,priority_server,[{self(),Ref}]), Port = receive {Ref,P} -> P - after 5000 -> ?t:fail({error,"helper process timeout"}) + after 5000 -> ct:fail({error,"helper process timeout"}) end, receive after 3000 -> ok @@ -1879,15 +1846,15 @@ test_prio_accept_async() -> {Ref,{ok,[{priority,4},{tos,Tos1}]}} -> ok; {Ref,Error} -> - ?t:fail({missmatch,Error}) - after 5000 -> ?t:fail({error,"helper process timeout"}) + ct:fail({missmatch,Error}) + after 5000 -> ct:fail({error,"helper process timeout"}) end, receive {Ref,{ok,[{priority,4},{tos,Tos1}]}} -> ok; {Ref,Error2} -> - ?t:fail({missmatch,Error2}) - after 5000 -> ?t:fail({error,"helper process timeout"}) + ct:fail({missmatch,Error2}) + after 5000 -> ct:fail({error,"helper process timeout"}) end, {ok,[{priority,4},{tos,Tos2}]} = inet:getopts(Sock2,[priority,tos]), @@ -1909,10 +1876,6 @@ priority_server({Parent,Ref}) -> test_prio_fail() -> {ok,L} = gen_tcp:listen(0, [{active,false}]), {error,_} = inet:setopts(L,[{priority,1000}]), -% This error could only happen in linux kernels earlier than 2.6.24.4 -% Privilege check is now disabled and IP_TOS can never fail (only silently -% be masked). -% {error,_} = inet:setopts(L,[{tos,6 bsl 5}]), gen_tcp:close(L), ok. @@ -1924,10 +1887,7 @@ test_prio_udp() -> gen_udp:close(S), ok. -so_priority(doc) -> - ["Tests the so_priority and ip_tos options on sockets when applicable."]; -so_priority(suite) -> - []; +%% Tests the so_priority and ip_tos options on sockets when applicable. so_priority(Config) when is_list(Config) -> {ok,L} = gen_tcp:listen(0, [{active,false}]), ok = inet:setopts(L,[{priority,1}]), @@ -1947,7 +1907,7 @@ so_priority(Config) when is_list(Config) -> {unix,linux} -> case os:version() of {X,Y,_} when (X > 2) or ((X =:= 2) and (Y >= 4)) -> - ?t:fail({error, + ct:fail({error, "so_priority should work on this " "OS, but does not"}); _ -> @@ -1958,10 +1918,236 @@ so_priority(Config) when is_list(Config) -> end end. + + +%% IP_RECVTOS and IP_RECVTCLASS for IP_PKTOPTIONS +%% does not seem to be implemented in Linux until kernel 3.1 +%% +%% It seems pktoptions does not return valid values +%% for IPv4 connect sockets. On the accept socket +%% we get valid values, but on the connect socket we get +%% the default values for TOS and TTL. +%% +%% Therefore the argument CheckConnect that enables +%% checking the returned values for the connect socket. +%% It is only used for recvtclass that is an IPv6 option +%% and there we get valid values from both socket ends. + +recvtos(_Config) -> + test_pktoptions( + inet, [{recvtos,tos,96}], + fun recvtos_ok/2, + false). + +recvtosttl(_Config) -> + test_pktoptions( + inet, [{recvtos,tos,96},{recvttl,ttl,33}], + fun (OSType, OSVer) -> + recvtos_ok(OSType, OSVer) andalso recvttl_ok(OSType, OSVer) + end, + false). + +recvttl(_Config) -> + test_pktoptions( + inet, [{recvttl,ttl,33}], + fun recvttl_ok/2, + false). + +recvtclass(_Config) -> + {ok,IFs} = inet:getifaddrs(), + case + [Name || + {Name,Opts} <- IFs, + lists:member({addr,{0,0,0,0,0,0,0,1}}, Opts)] + of + [_] -> + test_pktoptions( + inet6, [{recvtclass,tclass,224}], + fun recvtclass_ok/2, + true); + [] -> + {skip,{ipv6_not_supported,IFs}} + end. + +%% These version numbers are the highest noted in daily tests +%% where the test fails for a plausible reason, so +%% skip on that platform. +%% +%% On newer versions it might be fixed, but we'll see about that +%% when machines with newer versions gets installed... +%% If the test still fails for a plausible reason these +%% version numbers simply should be increased. +%% Or maybe we should change to only test on known good +%% platforms - change {unix,_} to false? + +%% pktoptions is not supported for IPv4 +recvtos_ok({unix,openbsd}, OSVer) -> not semver_lt(OSVer, {6,4,0}); +recvtos_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {17,6,0}); +%% Using the option returns einval, so it is not implemented. +recvtos_ok({unix,freebsd}, OSVer) -> not semver_lt(OSVer, {11,2,0}); +recvtos_ok({unix,sunos}, OSVer) -> not semver_lt(OSVer, {5,12,0}); +%% Does not return any value - not implemented for pktoptions +recvtos_ok({unix,linux}, OSVer) -> not semver_lt(OSVer, {3,1,0}); +%% +recvtos_ok({unix,_}, _) -> true; +recvtos_ok(_, _) -> false. + +%% pktoptions is not supported for IPv4 +recvttl_ok({unix,openbsd}, OSVer) -> not semver_lt(OSVer, {6,4,0}); +recvttl_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {17,6,0}); +%% Using the option returns einval, so it is not implemented. +recvttl_ok({unix,freebsd}, OSVer) -> not semver_lt(OSVer, {11,2,0}); +recvttl_ok({unix,sunos}, OSVer) -> not semver_lt(OSVer, {5,12,0}); +%% +recvttl_ok({unix,linux}, _) -> true; +recvttl_ok({unix,_}, _) -> true; +recvttl_ok(_, _) -> false. + +%% pktoptions is not supported for IPv6 +recvtclass_ok({unix,openbsd}, OSVer) -> not semver_lt(OSVer, {6,4,0}); +recvtclass_ok({unix,darwin}, OSVer) -> not semver_lt(OSVer, {17,6,0}); +recvtclass_ok({unix,sunos}, OSVer) -> not semver_lt(OSVer, {5,12,0}); +%% Using the option returns einval, so it is not implemented. +recvtclass_ok({unix,freebsd}, OSVer) -> not semver_lt(OSVer, {11,2,0}); +%% Does not return any value - not implemented for pktoptions +recvtclass_ok({unix,linux}, OSVer) -> not semver_lt(OSVer, {3,1,0}); +%% +recvtclass_ok({unix,_}, _) -> true; +recvtclass_ok(_, _) -> false. + +semver_lt({X1,Y1,Z1}, {X2,Y2,Z2}) -> + if + X1 > X2 -> false; + X1 < X2 -> true; + Y1 > Y2 -> false; + Y1 < Y2 -> true; + Z1 > Z2 -> false; + Z1 < Z2 -> true; + true -> false + end; +semver_lt(_, {_,_,_}) -> false. + +test_pktoptions(Family, Spec, OSFilter, CheckConnect) -> + OSType = os:type(), + OSVer = os:version(), + case OSFilter(OSType, OSVer) of + true -> + io:format("Os: ~p, ~p~n", [OSType,OSVer]), + test_pktoptions(Family, Spec, CheckConnect, OSType, OSVer); + false -> + {skip,{not_supported_for_os_version,{OSType,OSVer}}} + end. +%% +test_pktoptions(Family, Spec, CheckConnect, OSType, OSVer) -> + Timeout = 5000, + RecvOpts = [RecvOpt || {RecvOpt,_,_} <- Spec], + TrueRecvOpts = [{RecvOpt,true} || {RecvOpt,_,_} <- Spec], + FalseRecvOpts = [{RecvOpt,false} || {RecvOpt,_,_} <- Spec], + Opts = [Opt || {_,Opt,_} <- Spec], + OptsVals = [{Opt,Val} || {_,Opt,Val} <- Spec], + Address = + case Family of + inet -> + {127,0,0,1}; + inet6 -> + {0,0,0,0,0,0,0,1} + end, + %% + %% Set RecvOpts on listen socket + {ok,L} = + gen_tcp:listen( + 0, + [Family,binary,{active,false},{send_timeout,Timeout} + |TrueRecvOpts]), + {ok,P} = inet:port(L), + {ok,TrueRecvOpts} = inet:getopts(L, RecvOpts), + {ok,OptsValsDefault} = inet:getopts(L, Opts), + %% + %% Set RecvOpts and Option values on connect socket + {ok,S2} = + gen_tcp:connect( + Address, P, + [Family,binary,{active,false},{send_timeout,Timeout} + |TrueRecvOpts ++ OptsVals], + Timeout), + {ok,TrueRecvOpts} = inet:getopts(S2, RecvOpts), + {ok,OptsVals} = inet:getopts(S2, Opts), + %% + %% Accept socket inherits the options from listen socket + {ok,S1} = gen_tcp:accept(L, Timeout), + {ok,TrueRecvOpts} = inet:getopts(S1, RecvOpts), + {ok,OptsValsDefault} = inet:getopts(S1, Opts), +%%% %% +%%% %% Handshake +%%% ok = gen_tcp:send(S1, <<"hello">>), +%%% {ok,<<"hello">>} = gen_tcp:recv(S2, 5, Timeout), +%%% ok = gen_tcp:send(S2, <<"hi">>), +%%% {ok,<<"hi">>} = gen_tcp:recv(S1, 2, Timeout), + %% + %% Verify returned remote options + {ok,[{pktoptions,OptsVals1}]} = inet:getopts(S1, [pktoptions]), + {ok,[{pktoptions,OptsVals2}]} = inet:getopts(S2, [pktoptions]), + (Result1 = sets_eq(OptsVals1, OptsVals)) + orelse io:format( + "Accept differs: ~p neq ~p~n", [OptsVals1,OptsVals]), + (Result2 = sets_eq(OptsVals2, OptsValsDefault)) + orelse io:format( + "Connect differs: ~p neq ~p~n", + [OptsVals2,OptsValsDefault]), + %% + ok = gen_tcp:close(S2), + ok = gen_tcp:close(S1), + %% + %% + %% Clear RecvOpts on listen socket and set Option values + ok = inet:setopts(L, FalseRecvOpts ++ OptsVals), + {ok,FalseRecvOpts} = inet:getopts(L, RecvOpts), + {ok,OptsVals} = inet:getopts(L, Opts), + %% + %% Set RecvOpts on connecting socket + %% + {ok,S4} = + gen_tcp:connect( + Address, P, + [Family,binary,{active,false},{send_timeout,Timeout} + |TrueRecvOpts], + Timeout), + {ok,TrueRecvOpts} = inet:getopts(S4, RecvOpts), + {ok,OptsValsDefault} = inet:getopts(S4, Opts), + %% + %% Accept socket inherits the options from listen socket + {ok,S3} = gen_tcp:accept(L, Timeout), + {ok,FalseRecvOpts} = inet:getopts(S3, RecvOpts), + {ok,OptsVals} = inet:getopts(S3, Opts), + %% + %% Verify returned remote options + {ok,[{pktoptions,[]}]} = inet:getopts(S3, [pktoptions]), + {ok,[{pktoptions,OptsVals4}]} = inet:getopts(S4, [pktoptions]), + (Result3 = sets_eq(OptsVals4, OptsVals)) + orelse io:format( + "Accept2 differs: ~p neq ~p~n", [OptsVals4,OptsVals]), + %% + ok = gen_tcp:close(S4), + ok = gen_tcp:close(S3), + ok = gen_tcp:close(L), + (Result1 and ((not CheckConnect) or (Result2 and Result3))) + orelse + exit({failed, + [{OptsVals1,OptsVals4,OptsVals}, + {OptsVals2,OptsValsDefault}], + {OSType,OSVer}}), +%% exit({{OSType,OSVer},success}), % In search for the truth + ok. + +sets_eq(L1, L2) -> + lists:sort(L1) == lists:sort(L2). + + + %% Accept test utilities (suites are below) millis() -> - erlang:monotonic_time(milli_seconds). + erlang:monotonic_time(millisecond). collect_accepts(0,_) -> []; collect_accepts(N,Tmo) -> @@ -2006,10 +2192,7 @@ mktmofun(Tmo,Parent,LS) -> fun() -> Parent ! {accepted,self(), catch gen_tcp:accept(LS,Tmo)} end. %% Accept tests -primitive_accept(suite) -> - []; -primitive_accept(doc) -> - ["Test singular accept"]; +%% Test singular accept. primitive_accept(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), {ok,PortNo}=inet:port(LS), @@ -2027,10 +2210,7 @@ primitive_accept(Config) when is_list(Config) -> end. -multi_accept_close_listen(suite) -> - []; -multi_accept_close_listen(doc) -> - ["Closing listen socket when multi-accepting"]; +%% Closing listen socket when multi-accepting. multi_accept_close_listen(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2043,10 +2223,7 @@ multi_accept_close_listen(Config) when is_list(Config) -> ok = ?EXPECT_ACCEPTS([{_,{error,closed}},{_,{error,closed}}, {_,{error,closed}},{_,{error,closed}}],4,500). -accept_timeout(suite) -> - []; -accept_timeout(doc) -> - ["Single accept with timeout"]; +%% Single accept with timeout. accept_timeout(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2054,10 +2231,7 @@ accept_timeout(Config) when is_list(Config) -> P = spawn(F), ok = ?EXPECT_ACCEPTS([{P,{error,timeout}}],1,2000). -accept_timeouts_in_order(suite) -> - []; -accept_timeouts_in_order(doc) -> - ["Check that multi-accept timeouts happen in the correct order"]; +%% Check that multi-accept timeouts happen in the correct order. accept_timeouts_in_order(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2068,10 +2242,7 @@ accept_timeouts_in_order(Config) when is_list(Config) -> ok = ?EXPECT_ACCEPTS([{P1,{error,timeout}},{P2,{error,timeout}}, {P3,{error,timeout}},{P4,{error,timeout}}],infinity,2000). -accept_timeouts_in_order2(suite) -> - []; -accept_timeouts_in_order2(doc) -> - ["Check that multi-accept timeouts happen in the correct order (more)"]; +%% Check that multi-accept timeouts happen in the correct order (more). accept_timeouts_in_order2(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2082,10 +2253,7 @@ accept_timeouts_in_order2(Config) when is_list(Config) -> ok = ?EXPECT_ACCEPTS([{P4,{error,timeout}},{P3,{error,timeout}}, {P2,{error,timeout}},{P1,{error,timeout}}],infinity,2000). -accept_timeouts_in_order3(suite) -> - []; -accept_timeouts_in_order3(doc) -> - ["Check that multi-accept timeouts happen in the correct order (even more)"]; +%% Check that multi-accept timeouts happen in the correct order (even more). accept_timeouts_in_order3(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2096,11 +2264,8 @@ accept_timeouts_in_order3(Config) when is_list(Config) -> ok = ?EXPECT_ACCEPTS([{P4,{error,timeout}},{P1,{error,timeout}}, {P3,{error,timeout}},{P2,{error,timeout}}],infinity,2000). -accept_timeouts_in_order4(suite) -> - []; -accept_timeouts_in_order4(doc) -> - ["Check that multi-accept timeouts happen in the correct order after " - "mixing millsec and sec timeouts"]; +%% Check that multi-accept timeouts happen in the correct order after +%% mixing millsec and sec timeouts. accept_timeouts_in_order4(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2111,11 +2276,8 @@ accept_timeouts_in_order4(Config) when is_list(Config) -> ok = ?EXPECT_ACCEPTS([{P1,{error,timeout}},{P2,{error,timeout}}, {P4,{error,timeout}},{P3,{error,timeout}}],infinity,2000). -accept_timeouts_in_order5(suite) -> - []; -accept_timeouts_in_order5(doc) -> - ["Check that multi-accept timeouts happen in the correct order after " - "mixing millsec and sec timeouts (more)"]; +%% Check that multi-accept timeouts happen in the correct order after +%% mixing millsec and sec timeouts (more). accept_timeouts_in_order5(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2126,11 +2288,8 @@ accept_timeouts_in_order5(Config) when is_list(Config) -> ok = ?EXPECT_ACCEPTS([{P4,{error,timeout}},{P1,{error,timeout}}, {P3,{error,timeout}},{P2,{error,timeout}}],infinity,2000). -accept_timeouts_in_order6(suite) -> - []; -accept_timeouts_in_order6(doc) -> - ["Check that multi-accept timeouts happen in the correct order after " - "mixing millsec and sec timeouts (even more)"]; +%% Check that multi-accept timeouts happen in the correct order after +%% mixing millsec and sec timeouts (even more). accept_timeouts_in_order6(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2141,11 +2300,8 @@ accept_timeouts_in_order6(Config) when is_list(Config) -> ok = ?EXPECT_ACCEPTS([{P4,{error,timeout}},{P2,{error,timeout}}, {P3,{error,timeout}},{P1,{error,timeout}}],infinity,2000). -accept_timeouts_in_order7(suite) -> - []; -accept_timeouts_in_order7(doc) -> - ["Check that multi-accept timeouts happen in the correct order after " - "mixing millsec and sec timeouts (even more++)"]; +%% Check that multi-accept timeouts happen in the correct order after +%% mixing millsec and sec timeouts (even more++). accept_timeouts_in_order7(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2162,10 +2318,7 @@ accept_timeouts_in_order7(Config) when is_list(Config) -> {P1,{error,timeout}},{P3,{error,timeout}}, {P8,{error,timeout}},{P7,{error,timeout}}],infinity,2000). -accept_timeouts_mixed(suite) -> - []; -accept_timeouts_mixed(doc) -> - ["Check that multi-accept timeouts behave correctly when mixed with successful timeouts"]; +%% Check that multi-accept timeouts behave correctly when mixed with successful timeouts. accept_timeouts_mixed(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2185,10 +2338,7 @@ accept_timeouts_mixed(Config) when is_list(Config) -> gen_tcp:connect("localhost",PortNo,[]), ok = ?EXPECT_ACCEPTS([{P4,{ok,Port1}}] when is_port(Port1),infinity,100). -killing_acceptor(suite) -> - []; -killing_acceptor(doc) -> - ["Check that single acceptor behaves as expected when killed"]; +%% Check that single acceptor behaves as expected when killed. killing_acceptor(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Pid = spawn(fun() -> erlang:display({accepted,self(),gen_tcp:accept(LS)}) end), @@ -2203,10 +2353,7 @@ killing_acceptor(Config) when is_list(Config) -> false = lists:member(accepting, L2), ok. -killing_multi_acceptors(suite) -> - []; -killing_multi_acceptors(doc) -> - ["Check that multi acceptors behaves as expected when killed"]; +%% Check that multi acceptors behaves as expected when killed. killing_multi_acceptors(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2228,10 +2375,7 @@ killing_multi_acceptors(Config) when is_list(Config) -> false = lists:member(accepting, L3), ok. -killing_multi_acceptors2(suite) -> - []; -killing_multi_acceptors2(doc) -> - ["Check that multi acceptors behaves as expected when killed (more)"]; +%% Check that multi acceptors behaves as expected when killed (more). killing_multi_acceptors2(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2265,11 +2409,8 @@ killing_multi_acceptors2(Config) when is_list(Config) -> false = lists:member(accepting, L5), ok. -several_accepts_in_one_go(suite) -> - []; -several_accepts_in_one_go(doc) -> - ["checks that multi-accept works when more than one accept can be " - "done at once (wb test of inet_driver)"]; +%% Checks that multi-accept works when more than one accept can be +%% done at once (wb test of inet_driver). several_accepts_in_one_go(Config) when is_list(Config) -> {ok,LS}=gen_tcp:listen(0,[]), Parent = self(), @@ -2294,7 +2435,7 @@ wait_until_accepting(Proc,0) -> exit({timeout_waiting_for_accepting,Proc}); wait_until_accepting(Proc,N) -> case process_info(Proc,current_function) of - {current_function,{prim_inet,accept0,2}} -> + {current_function,{prim_inet,accept0,3}} -> case process_info(Proc,status) of {status,waiting} -> ok; @@ -2312,11 +2453,8 @@ wait_until_accepting(Proc,N) -> end. -accept_system_limit(suite) -> - []; -accept_system_limit(doc) -> - ["Check that accept returns {error, system_limit} " - "(and not {error, enfile}) when running out of ports"]; +%% Check that accept returns {error, system_limit} +%% (and not {error, enfile}) when running out of ports. accept_system_limit(Config) when is_list(Config) -> {ok, LS} = gen_tcp:listen(0, []), {ok, TcpPort} = inet:port(LS), @@ -2365,10 +2503,7 @@ open_ports(L) -> end. -active_once_closed(suite) -> - []; -active_once_closed(doc) -> - ["Check that active once and tcp_close messages behave as expected"]; +%% Check that active once and tcp_close messages behave as expected. active_once_closed(Config) when is_list(Config) -> (fun() -> {Loop,A} = setup_closed_ao(), @@ -2416,75 +2551,84 @@ active_once_closed(Config) when is_list(Config) -> ok = receive {tcp_closed, A} -> ok after 1000 -> error end end)(). -send_timeout(suite) -> - []; -send_timeout(doc) -> - ["Test the send_timeout socket option"]; +%% Test the send_timeout socket option. send_timeout(Config) when is_list(Config) -> + Dir = filename:dirname(code:which(?MODULE)), + {ok,RNode} = test_server:start_node(?UNIQ_NODE_NAME, slave, + [{args,"-pa " ++ Dir}]), + %% Basic - BasicFun = - fun(AutoClose) -> - {Loop,A,RNode} = setup_timeout_sink(1000, AutoClose), - {error,timeout} = - Loop(fun() -> - Res = gen_tcp:send(A,<<1:10000>>), - %%erlang:display(Res), - Res - end), - %% Check that the socket is not busy/closed... - Error = after_send_timeout(AutoClose), - {error,Error} = gen_tcp:send(A,<<"Hej">>), - test_server:stop_node(RNode) - end, - BasicFun(false), - BasicFun(true), - %% Check timeout length + send_timeout_basic(false, RNode), + send_timeout_basic(true, RNode), + + BinData = <<1:10000>>, + + %% Check timeout length. Self = self(), Pid = spawn(fun() -> - {Loop,A,RNode} = setup_timeout_sink(1000, true), - {error,timeout} = Loop(fun() -> - Res = gen_tcp:send(A,<<1:10000>>), - %%erlang:display(Res), - Self ! Res, - Res - end), - test_server:stop_node(RNode) + A = setup_timeout_sink(RNode, 1000, true), + Send = fun() -> + Res = gen_tcp:send(A, BinData), + Self ! Res, + Res + end, + {error,timeout} = timeout_sink_loop(Send) end), Diff = get_max_diff(), io:format("Max time for send: ~p~n",[Diff]), true = (Diff > 500) and (Diff < 1500), - %% Let test_server slave die... + + %% Wait for the process to die. Mon = erlang:monitor(process, Pid), receive {'DOWN',Mon,process,Pid,_} -> ok end, + %% Check that parallell writers do not hang forever - ParaFun = - fun(AutoClose) -> - {Loop,A,RNode} = setup_timeout_sink(1000, AutoClose), - SenderFun = fun() -> - {error,Error} = - Loop(fun() -> - gen_tcp:send(A, <<1:10000>>) - end), - Self ! {error,Error} - end, - spawn_link(SenderFun), - spawn_link(SenderFun), - receive - {error,timeout} -> ok - after 10000 -> - exit(timeout) - end, - NextErr = after_send_timeout(AutoClose), - receive - {error,NextErr} -> ok - after 10000 -> - exit(timeout) - end, - {error,NextErr} = gen_tcp:send(A,<<"Hej">>), - test_server:stop_node(RNode) - end, - ParaFun(false), - ParaFun(true), + send_timeout_para(false, RNode), + send_timeout_para(true, RNode), + + test_server:stop_node(RNode), + + ok. + +send_timeout_basic(AutoClose, RNode) -> + BinData = <<1:10000>>, + + A = setup_timeout_sink(RNode, 1000, AutoClose), + Send = fun() -> gen_tcp:send(A, BinData) end, + {error,timeout} = timeout_sink_loop(Send), + + %% Check that the socket is not busy/closed... + Error = after_send_timeout(AutoClose), + {error,Error} = gen_tcp:send(A, <<"Hej">>), + ok. + +send_timeout_para(AutoClose, RNode) -> + BinData = <<1:10000>>, + + A = setup_timeout_sink(RNode, 1000, AutoClose), + Self = self(), + SenderFun = fun() -> + Send = fun() -> gen_tcp:send(A, BinData) end, + {error,Error} = timeout_sink_loop(Send), + Self ! {error,Error} + end, + spawn_link(SenderFun), + spawn_link(SenderFun), + + receive + {error,timeout} -> ok + after 10000 -> + exit(timeout) + end, + + NextErr = after_send_timeout(AutoClose), + receive + {error,NextErr} -> ok + after 10000 -> + exit(timeout) + end, + + {error,NextErr} = gen_tcp:send(A, <<"Hej">>), ok. mad_sender(S) -> @@ -2500,46 +2644,41 @@ mad_sender(S) -> flush() -> receive _X -> - %erlang:display(_X), flush() after 0 -> ok end. -send_timeout_active(suite) -> - []; -send_timeout_active(doc) -> - ["Test the send_timeout socket option for active sockets"]; +%% Test the send_timeout socket option for active sockets. send_timeout_active(Config) when is_list(Config) -> - Dog = test_server:timetrap(test_server:seconds(20)), - %% Basic - BasicFun = - fun(AutoClose) -> - {Loop,A,RNode,C} = setup_active_timeout_sink(1, AutoClose), - inet:setopts(A, [{active, once}]), - Mad = spawn_link(RNode,fun() -> mad_sender(C) end), - {error,timeout} = - Loop(fun() -> - receive - {tcp, _Sock, _Data} -> - inet:setopts(A, [{active, once}]), - Res = gen_tcp:send(A,lists:duplicate(1000, $a)), - %erlang:display(Res), - Res; - Err -> - io:format("sock closed: ~p~n", [Err]), - Err - end - end), - unlink(Mad), - exit(Mad,kill), - test_server:stop_node(RNode) + Dir = filename:dirname(code:which(?MODULE)), + {ok,RNode} = test_server:start_node(?UNIQ_NODE_NAME, slave, + [{args,"-pa " ++ Dir}]), + do_send_timeout_active(false, RNode), + do_send_timeout_active(true, RNode), + test_server:stop_node(RNode), + ok. + +do_send_timeout_active(AutoClose, RNode) -> + {A,C} = setup_active_timeout_sink(RNode, 1, AutoClose), + inet:setopts(A, [{active, once}]), + Mad = spawn_link(RNode, fun() -> mad_sender(C) end), + ListData = lists:duplicate(1000, $a), + F = fun() -> + receive + {tcp, _Sock, _Data} -> + inet:setopts(A, [{active, once}]), + Res = gen_tcp:send(A, ListData), + Res; + Err -> + io:format("sock closed: ~p~n", [Err]), + Err + end end, - BasicFun(false), - flush(), - BasicFun(true), + {error,timeout} = timeout_sink_loop(F), + unlink(Mad), + exit(Mad, kill), flush(), - test_server:timetrap_cancel(Dog), ok. after_send_timeout(AutoClose) -> @@ -2581,9 +2720,9 @@ get_max_diff(Max) -> setup_closed_ao() -> Dir = filename:dirname(code:which(?MODULE)), - {ok,R} = test_server:start_node(test_default_options_slave,slave, + {ok,R} = test_server:start_node(?UNIQ_NODE_NAME, slave, [{args,"-pa " ++ Dir}]), - Host = list_to_atom(lists:nth(2,string:tokens(atom_to_list(node()),"@"))), + Host = get_hostname(node()), {ok, L} = gen_tcp:listen(0, [{active,false},{packet,2}]), Fun = fun(F) -> receive @@ -2622,11 +2761,8 @@ setup_closed_ao() -> test_server:stop_node(R), {Loop,A}. -setup_timeout_sink(Timeout, AutoClose) -> - Dir = filename:dirname(code:which(?MODULE)), - {ok,R} = test_server:start_node(test_default_options_slave,slave, - [{args,"-pa " ++ Dir}]), - Host = list_to_atom(lists:nth(2,string:tokens(atom_to_list(node()),"@"))), +setup_timeout_sink(RNode, Timeout, AutoClose) -> + Host = get_hostname(node()), {ok, L} = gen_tcp:listen(0, [{active,false},{packet,2}, {send_timeout,Timeout}, {send_timeout_close,AutoClose}]), @@ -2637,7 +2773,7 @@ setup_timeout_sink(Timeout, AutoClose) -> die -> ok end end, - Pid = rpc:call(R,erlang,spawn,[fun() -> Fun(Fun) end]), + Pid = rpc:call(RNode, erlang, spawn, [fun() -> Fun(Fun) end]), {ok, Port} = inet:port(L), Remote = fun(Fu) -> Pid ! {self(), Fu}, @@ -2651,36 +2787,23 @@ setup_timeout_sink(Timeout, AutoClose) -> {ok,A} = gen_tcp:accept(L), gen_tcp:send(A,"Hello"), {ok, "Hello"} = Remote(fun() -> gen_tcp:recv(C,0) end), - Loop2 = fun(_,_,0) -> - {failure, timeout}; - (L2,F2,N) -> - Ret = F2(), - io:format("~p~n",[Ret]), - case Ret of - ok -> receive after 1 -> ok end, - L2(L2,F2,N-1); - Other -> Other - end - end, - Loop = fun(F3) -> Loop2(Loop2,F3,1000) end, - {Loop,A,R}. - -setup_active_timeout_sink(Timeout, AutoClose) -> - Dir = filename:dirname(code:which(?MODULE)), - {ok,R} = test_server:start_node(test_default_options_slave,slave, - [{args,"-pa " ++ Dir}]), - Host = list_to_atom(lists:nth(2,string:tokens(atom_to_list(node()),"@"))), - {ok, L} = gen_tcp:listen(0, [binary,{active,false},{packet,0},{nodelay, true},{keepalive, true}, - {send_timeout,Timeout}, - {send_timeout_close,AutoClose}]), + A. + +setup_active_timeout_sink(RNode, Timeout, AutoClose) -> + Host = get_hostname(node()), + ListenOpts = [binary,{active,false},{packet,0}, + {nodelay,true},{keepalive,true}, + {send_timeout,Timeout},{send_timeout_close,AutoClose}], + {ok, L} = gen_tcp:listen(0, ListenOpts), Fun = fun(F) -> receive {From,X} when is_function(X) -> - From ! {self(),X()}, F(F); + From ! {self(),X()}, + F(F); die -> ok end end, - Pid = rpc:call(R,erlang,spawn,[fun() -> Fun(Fun) end]), + Pid = rpc:call(RNode, erlang, spawn, [fun() -> Fun(Fun) end]), {ok, Port} = inet:port(L), Remote = fun(Fu) -> Pid ! {self(), Fu}, @@ -2688,26 +2811,22 @@ setup_active_timeout_sink(Timeout, AutoClose) -> end end, {ok, C} = Remote(fun() -> - gen_tcp:connect(Host,Port, - [{active,false}]) + gen_tcp:connect(Host, Port, [{active,false}]) end), {ok,A} = gen_tcp:accept(L), - gen_tcp:send(A,"Hello"), - {ok, "H"++_} = Remote(fun() -> gen_tcp:recv(C,0) end), - Loop2 = fun(_,_,0) -> - {failure, timeout}; - (L2,F2,N) -> - Ret = F2(), - io:format("~p~n",[Ret]), - case Ret of - ok -> receive after 1 -> ok end, - L2(L2,F2,N-1); - Other -> Other - end - end, - Loop = fun(F3) -> Loop2(Loop2,F3,1000) end, - {Loop,A,R,C}. + gen_tcp:send(A, "Hello"), + {ok, "H"++_} = Remote(fun() -> gen_tcp:recv(C, 0) end), + {A,C}. +timeout_sink_loop(Action) -> + Ret = Action(), + case Ret of + ok -> + receive after 1 -> ok end, + timeout_sink_loop(Action); + Other -> + Other + end. has_superfluous_schedulers() -> case {erlang:system_info(schedulers), @@ -2718,10 +2837,8 @@ has_superfluous_schedulers() -> end. -otp_7731(suite) -> []; -otp_7731(doc) -> - "Leaking message from inet_drv {inet_reply,P,ok} " - "when a socket sending resumes working after a send_timeout"; +%% Leaking message from inet_drv {inet_reply,P,ok} +%% when a socket sending resumes working after a send_timeout. otp_7731(Config) when is_list(Config) -> ServerPid = spawn_link(?MODULE, otp_7731_server, [self()]), receive {ServerPid, ready, PortNum} -> ok end, @@ -2738,7 +2855,7 @@ otp_7731(Config) when is_list(Config) -> %% Now make sure inet_drv does not leak any internal messages. receive Msg -> - test_server:fail({unexpected, Msg}) + ct:fail({unexpected, Msg}) after 1000 -> ok end, @@ -2791,8 +2908,7 @@ otp_7731_recv(Socket) -> %% OTP-7615: TCP-ports hanging in CLOSING state when sending large %% buffer followed by a recv() that returns error due to closed %% connection. -zombie_sockets(suite) -> []; -zombie_sockets(doc) -> ["OTP-7615 Leaking closed ports."]; +%% OTP-7615 Leaking closed ports. zombie_sockets(Config) when is_list(Config) -> register(zombie_collector,self()), Calls = 10, @@ -2872,9 +2988,7 @@ zombie_serve_client(Socket, Bin) -> gen_tcp:close(Socket), zombie_collector ! {closed, Socket}. -otp_7816(suite) -> []; -otp_7816(doc) -> - "Hanging send on windows when sending iolist with more than 16 binaries."; +%% Hanging send on windows when sending iolist with more than 16 binaries. otp_7816(Config) when is_list(Config) -> Client = self(), Server = spawn_link(fun()-> otp_7816_server(Client) end), @@ -2963,8 +3077,7 @@ otp_7816_recv(CSocket, BytesLeft) -> error end. -otp_8102(doc) -> ["Receive a packet with a faulty packet header"]; -otp_8102(suite) -> []; +%% Receive a packet with a faulty packet header. otp_8102(Config) when is_list(Config) -> {ok, LSocket} = gen_tcp:listen(0, []), {ok, {_, PortNum}} = inet:sockname(LSocket), @@ -3004,8 +3117,7 @@ otp_8102_do(LSocket, PortNum, {Bin,PType}) -> gen_tcp:close(SSocket), gen_tcp:close(RSocket). -otp_9389(doc) -> ["Verify packet_size handles long HTTP header lines"]; -otp_9389(suite) -> []; +%% Verify packet_size handles long HTTP header lines. otp_9389(Config) when is_list(Config) -> {ok, LS} = gen_tcp:listen(0, [{active,false}]), {ok, {_, PortNum}} = inet:sockname(LS), @@ -3064,10 +3176,10 @@ otp_9389_loop(S, OrigLinkHdr, State) -> error({timeout,header}) end. -wrapping_oct(doc) -> - "Check that 64bit octet counters work."; -wrapping_oct(suite) -> - []; +wrapping_oct() -> + [{timetrap,{minutes,10}}]. + +%% Check that 64bit octet counters work. wrapping_oct(Config) when is_list(Config) -> {ok,Sock} = gen_tcp:listen(0,[{active,false},{mode,binary}]), {ok,Port} = inet:port(Sock), @@ -3131,3 +3243,186 @@ oct_aloop(S,X,Times) -> end. ok({ok,V}) -> V. + +get_hostname(Name) -> + "@"++Host = lists:dropwhile(fun(C) -> C =/= $@ end, atom_to_list(Name)), + Host. + +otp_13939(doc) -> + ["Check that writing to a remotely closed socket doesn't block forever " + "when exit_on_close is false."]; +otp_13939(suite) -> + []; +otp_13939(Config) when is_list(Config) -> + {Pid, Ref} = spawn_opt( + fun() -> + {ok, Listener} = gen_tcp:listen(0, [{exit_on_close, false}]), + {ok, Port} = inet:port(Listener), + + spawn_link( + fun() -> + {ok, Client} = gen_tcp:connect("localhost", Port, + [{active, false}]), + ok = gen_tcp:close(Client) + end), + + {ok, Accepted} = gen_tcp:accept(Listener), + + ok = gen_tcp:send(Accepted, <<0:(10*1024*1024*8)>>), + + %% The bug surfaces when there's a delay between the send + %% operations; inet:getstat is a red herring. + timer:sleep(100), + + {error, Code} = gen_tcp:send(Accepted, <<0:(10*1024*1024*8)>>), + ct:pal("gen_tcp:send returned ~p~n", [Code]) + end, [link, monitor]), + + receive + {'DOWN', Ref, process, Pid, normal} -> + ok + after 1000 -> + demonitor(Ref, [flush]), + exit(Pid, normal), + ct:fail("Server process blocked on send.") + end. + +otp_12242(Config) when is_list(Config) -> + case os:type() of + {win32,_} -> + %% Even if we set sndbuf and recbuf to small sizes + %% Windows either happily accepts to send GBytes of data + %% in no time, so the second send below that is supposed + %% to time out just succedes, or the first send that + %% is supposed to fill the inet_drv I/O queue and + %% start waiting for when more data can be sent + %% instead sends all data but suffers a send + %% failure that closes the socket + {skipped,backpressure_broken_on_win32}; + _ -> + %% Find the IPv4 address of an up and running interface + %% that is not loopback nor pointtopoint + {ok,IFList} = inet:getifaddrs(), + ct:pal("IFList ~p~n", [IFList]), + case + lists:flatten( + [lists:filtermap( + fun ({addr,Addr}) when tuple_size(Addr) =:= 4 -> + {true,Addr}; + (_) -> + false + end, Opts) + || {_,Opts} <- IFList, + case lists:keyfind(flags, 1, Opts) of + {_,Flags} -> + lists:member(up, Flags) + andalso + lists:member(running, Flags) + andalso + not lists:member(loopback, Flags) + andalso + not lists:member(pointtopoint, Flags); + false -> + false + end]) + of + [Addr|_] -> + otp_12242(Addr); + Other -> + {skipped,{no_external_address,Other}} + end + end; +%% +otp_12242(Addr) when tuple_size(Addr) =:= 4 -> + ct:timetrap(30000), + ct:pal("Using address ~p~n", [Addr]), + Bufsize = 16 * 1024, + Datasize = 128 * 1024 * 1024, % At least 1 s on GBit interface + Blob = binary:copy(<<$x>>, Datasize), + LOpts = + [{backlog,4},{reuseaddr,true},{ip,Addr}, + binary,{active,false}, + {recbuf,Bufsize},{sndbuf,Bufsize},{buffer,Bufsize}], + COpts = + [binary,{active,false},{ip,Addr}, + {linger,{true,1}}, % 1 s + {send_timeout,500}, + {recbuf,Bufsize},{sndbuf,Bufsize},{buffer,Bufsize}], + Dir = filename:dirname(code:which(?MODULE)), + {ok,ListenerNode} = + test_server:start_node( + ?UNIQ_NODE_NAME, slave, [{args,"-pa " ++ Dir}]), + Tester = self(), + Listener = + spawn( + ListenerNode, + fun () -> + {ok,L} = gen_tcp:listen(0, LOpts), + {ok,LPort} = inet:port(L), + Tester ! {self(),port,LPort}, + {ok,A} = gen_tcp:accept(L), + ok = gen_tcp:close(L), + receive + {Tester,stop} -> + ok = gen_tcp:close(A) + end + end), + ListenerMref = monitor(process, Listener), + LPort = receive {Listener,port,P} -> P end, + {ok,C} = gen_tcp:connect(Addr, LPort, COpts, infinity), + {ok,ReadCOpts} = inet:getopts(C, [recbuf,sndbuf,buffer]), + ct:pal("ReadCOpts ~p~n", [ReadCOpts]), + %% + %% Fill the buffers + ct:pal("Sending ~p bytes~n", [Datasize]), + ok = gen_tcp:send(C, Blob), + ct:pal("Sent ~p bytes~n", [Datasize]), + %% Spawn the Closer, + %% try to ensure that the close call is in progress + %% before the owner proceeds with sending + Owner = self(), + {_Closer,CloserMref} = + spawn_opt( + fun () -> + Owner ! {tref, erlang:start_timer(50, Owner, closing)}, + ct:pal("Calling gen_tcp:close(C)~n"), + try gen_tcp:close(C) of + Result -> + ct:pal("gen_tcp:close(C) -> ~p~n", [Result]), + ok = Result + catch + Class:Reason:Stacktrace -> + ct:pal( + "gen_tcp:close(C) >< ~p:~p~n ~p~n", + [Class,Reason,Stacktrace]), + erlang:raise(Class, Reason, Stacktrace) + end + end, [link,monitor]), + receive + {tref,Tref} -> + receive {timeout,Tref,_} -> ok end, + ct:pal("Sending ~p bytes again~n", [Datasize]), + %% Now should the close be in progress... + %% All buffers are full, remote end is not reading, + %% and the send timeout is 1 s so this will timeout: + {error,timeout} = gen_tcp:send(C, Blob), + ct:pal("Sending ~p bytes again timed out~n", [Datasize]), + ok = inet:setopts(C, [{send_timeout,10000}]), + %% There is a hidden timeout here. Port close is sampled + %% every 5 s by prim_inet:send_recv_reply. + %% Linger is 3 s so the Closer will finish this send: + ct:pal("Sending ~p bytes with 10 s timeout~n", [Datasize]), + {error,closed} = gen_tcp:send(C, Blob), + ct:pal("Sending ~p bytes with 10 s timeout was closed~n", + [Datasize]), + normal = wait(CloserMref), + ct:pal("The Closer has exited~n"), + Listener ! {Tester,stop}, + receive {'DOWN',ListenerMref,_,_,_} -> ok end, + ct:pal("The Listener has exited~n"), + test_server:stop_node(ListenerNode), + ok + end. + +wait(Mref) -> + receive {'DOWN',Mref,_,_,Reason} -> Reason end. |