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-rw-r--r--lib/kernel/test/gen_tcp_misc_SUITE.erl37
1 files changed, 35 insertions, 2 deletions
diff --git a/lib/kernel/test/gen_tcp_misc_SUITE.erl b/lib/kernel/test/gen_tcp_misc_SUITE.erl
index ddd9d356ee..83bfd1f69d 100644
--- a/lib/kernel/test/gen_tcp_misc_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_misc_SUITE.erl
@@ -35,7 +35,7 @@
show_econnreset_passive/1, econnreset_after_sync_send/1,
econnreset_after_async_send_active/1,
econnreset_after_async_send_active_once/1,
- econnreset_after_async_send_passive/1,
+ econnreset_after_async_send_passive/1, linger_zero/1,
default_options/1, http_bad_packet/1,
busy_send/1, busy_disconnect_passive/1, busy_disconnect_active/1,
fill_sendq/1, partial_recv_and_close/1,
@@ -101,7 +101,7 @@ all() ->
show_econnreset_passive, econnreset_after_sync_send,
econnreset_after_async_send_active,
econnreset_after_async_send_active_once,
- econnreset_after_async_send_passive,
+ econnreset_after_async_send_passive, linger_zero,
default_options, http_bad_packet, busy_send,
busy_disconnect_passive, busy_disconnect_active,
fill_sendq, partial_recv_and_close,
@@ -1358,6 +1358,39 @@ econnreset_after_async_send_passive(Config) when is_list(Config) ->
ok = ?t:sleep(20),
{error, econnreset} = gen_tcp:recv(Client1, 0).
+%%
+%% Test {linger {true, 0}} aborts a connection
+%%
+
+linger_zero(Config) when is_list(Config) ->
+ %% All the econnreset tests will prove that {linger, {true, 0}} aborts
+ %% a connection when the driver queue is empty. We will test here
+ %% that it also works when the driver queue is not empty.
+ {OS, _} = os:type(),
+ {ok, L} = gen_tcp:listen(0, [{active, false},
+ {recbuf, 4096},
+ {show_econnreset, true}]),
+ {ok, Port} = inet:port(L),
+ {ok, Client} = gen_tcp:connect(localhost, Port,
+ [{active, false},
+ {sndbuf, 4096}]),
+ {ok, S} = gen_tcp:accept(L),
+ ok = gen_tcp:close(L),
+ PayloadSize = 1024 * 1024,
+ Payload = lists:duplicate(PayloadSize, $.),
+ ok = gen_tcp:send(Client, Payload),
+ 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)
+ end,
+ ok = inet:setopts(Client, [{linger, {true, 0}}]),
+ ok = gen_tcp:close(Client),
+ ok = ?t:sleep(1),
+ undefined = erlang:port_info(Client, connected),
+ {error, econnreset} = gen_tcp:recv(S, PayloadSize).
+
+
%% Thanks to Luke Gorrie. Tests for a very specific problem with
%% corrupt data. The testcase will be killed by the timetrap timeout
%% if the bug is present.