diff options
Diffstat (limited to 'lib/kernel/test/gen_tcp_misc_SUITE.erl')
| -rw-r--r-- | lib/kernel/test/gen_tcp_misc_SUITE.erl | 59 |
1 files changed, 54 insertions, 5 deletions
diff --git a/lib/kernel/test/gen_tcp_misc_SUITE.erl b/lib/kernel/test/gen_tcp_misc_SUITE.erl index 826d9ff088..1592399996 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 1998-2011. All Rights Reserved. +%% Copyright Ericsson AB 1998-2012. All Rights Reserved. %% %% 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 @@ -40,7 +40,8 @@ accept_timeouts_in_order/1,accept_timeouts_in_order2/1, accept_timeouts_in_order3/1,accept_timeouts_mixed/1, killing_acceptor/1,killing_multi_acceptors/1,killing_multi_acceptors2/1, - several_accepts_in_one_go/1,active_once_closed/1, send_timeout/1, send_timeout_active/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, otp_9389/1]). @@ -72,7 +73,7 @@ all() -> accept_timeouts_in_order, accept_timeouts_in_order2, accept_timeouts_in_order3, accept_timeouts_mixed, killing_acceptor, killing_multi_acceptors, - killing_multi_acceptors2, several_accepts_in_one_go, + killing_multi_acceptors2, several_accepts_in_one_go, accept_system_limit, active_once_closed, send_timeout, send_timeout_active, otp_7731, zombie_sockets, otp_7816, otp_8102, otp_9389]. @@ -1864,6 +1865,54 @@ 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"]; +accept_system_limit(Config) when is_list(Config) -> + ?line {ok, LS} = gen_tcp:listen(0, []), + ?line {ok, TcpPort} = inet:port(LS), + ?line Connector = spawn_link(fun () -> connector(TcpPort) end), + ?line ok = acceptor(LS, false, []), + ?line Connector ! stop, + ok. + +acceptor(LS, GotSL, A) -> + case gen_tcp:accept(LS, 1000) of + {ok, S} -> + acceptor(LS, GotSL, [S|A]); + {error, system_limit} -> + acceptor(LS, true, A); + {error, timeout} when GotSL -> + ok; + {error, timeout} -> + error + end. + +connector(TcpPort) -> + ManyPorts = open_ports([]), + ConnF = fun (Port) -> + case catch gen_tcp:connect({127,0,0,1}, TcpPort, []) of + {ok, Sock} -> + Sock; + _Error -> + port_close(Port) + end + end, + R = [ConnF(Port) || Port <- lists:sublist(ManyPorts, 10)], + receive stop -> R end. + +open_ports(L) -> + case catch open_port({spawn_driver, "ram_file_drv"}, []) of + Port when is_port(Port) -> + open_ports([Port|L]); + {'EXIT', {system_limit, _}} -> + {L1, L2} = lists:split(5, L), + [port_close(Port) || Port <- L1], + L2 + end. + active_once_closed(suite) -> []; @@ -2022,7 +2071,7 @@ send_timeout_active(Config) when is_list(Config) -> ?line {error,timeout} = Loop(fun() -> receive - {tcp, Sock, _Data} -> + {tcp, _Sock, _Data} -> inet:setopts(A, [{active, once}]), Res = gen_tcp:send(A,lists:duplicate(1000, $a)), %erlang:display(Res), @@ -2514,7 +2563,7 @@ otp_8102_do(LSocket, PortNum, {Bin,PType}) -> otp_9389(doc) -> ["Verify packet_size handles long HTTP header lines"]; otp_9389(suite) -> []; otp_9389(Config) when is_list(Config) -> - ?line {ok, LS} = gen_tcp:listen(0, []), + ?line {ok, LS} = gen_tcp:listen(0, [{active,false}]), ?line {ok, {_, PortNum}} = inet:sockname(LS), io:format("Listening on ~w with port number ~p\n", [LS, PortNum]), OrigLinkHdr = "/" ++ string:chars($S, 8192), |