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-rw-r--r--lib/kernel/test/gen_tcp_misc_SUITE.erl33
1 files changed, 31 insertions, 2 deletions
diff --git a/lib/kernel/test/gen_tcp_misc_SUITE.erl b/lib/kernel/test/gen_tcp_misc_SUITE.erl
index 244bd7e2a0..52edfaee29 100644
--- a/lib/kernel/test/gen_tcp_misc_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_misc_SUITE.erl
@@ -53,7 +53,7 @@
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/0, wrapping_oct/1, otp_9389/1, otp_13939/1,
- otp_12242/1]).
+ otp_12242/1, delay_send_error/1]).
%% Internal exports.
-export([sender/3, not_owner/1, passive_sockets_server/2, priority_server/1,
@@ -97,7 +97,7 @@ all() ->
active_once_closed, send_timeout, send_timeout_active, otp_7731,
wrapping_oct,
zombie_sockets, otp_7816, otp_8102, otp_9389,
- otp_12242].
+ otp_12242, delay_send_error].
groups() ->
[].
@@ -3427,3 +3427,32 @@ otp_12242(Addr) when tuple_size(Addr) =:= 4 ->
wait(Mref) ->
receive {'DOWN',Mref,_,_,Reason} -> Reason end.
+
+%% OTP-15536
+%% Test that send error works correctly for delay_send
+delay_send_error(Config) ->
+ {ok, LS} = gen_tcp:listen(0, [{reuseaddr, true}, {packet, 1}, {active, false}]),
+ {ok,{{0,0,0,0},PortNum}}=inet:sockname(LS),
+ P = spawn_link(
+ fun() ->
+ {ok, S} = gen_tcp:accept(LS),
+ receive die -> gen_tcp:close(S) end
+ end),
+ erlang:monitor(process, P),
+ {ok, S} = gen_tcp:connect("localhost", PortNum,
+ [{packet, 1}, {active, false}, {delay_send, true}]),
+
+ %% Do a couple of sends first to see that it works
+ ok = gen_tcp:send(S, "hello"),
+ ok = gen_tcp:send(S, "hello"),
+ ok = gen_tcp:send(S, "hello"),
+
+ %% Make the receiver close
+ P ! die,
+ receive _Down -> ok end,
+
+ ok = gen_tcp:send(S, "hello"),
+ timer:sleep(500), %% Sleep in order for delay_send to have time to trigger
+
+ %% This used to result in a double free
+ {error, closed} = gen_tcp:send(S, "hello").