diff options
| -rw-r--r-- | test/acceptor_SUITE.erl | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/acceptor_SUITE.erl b/test/acceptor_SUITE.erl index db9d4ff..02a5d79 100644 --- a/test/acceptor_SUITE.erl +++ b/test/acceptor_SUITE.erl @@ -41,6 +41,7 @@ -export([tcp_max_connections_and_beyond/1]). -export([tcp_set_max_connections/1]). -export([tcp_infinity_max_connections/1]). +-export([tcp_clean_set_max_connections/1]). -export([tcp_upgrade/1]). %% supervisor. @@ -62,6 +63,7 @@ groups() -> tcp_infinity_max_connections, tcp_max_connections_and_beyond, tcp_set_max_connections, + tcp_clean_set_max_connections, tcp_upgrade ]}, {ssl, [ ssl_accept_error, @@ -321,6 +323,33 @@ tcp_infinity_max_connections(_) -> 10 = receive_loop(connected, 1000), ranch:stop_listener(Name). +tcp_clean_set_max_connections(_) -> + %% This is a regression test to check that setting max connections does not + %% cause any processes to crash. + Name = tcp_clean_set_max_connections, + {ok, ListSupPid} = ranch:start_listener(Name, 4, ranch_tcp, + [{port, 0}, {max_connections, 4}], + notify_and_wait_protocol, [{msg, connected}, {pid, self()}]), + Children = supervisor:which_children(ListSupPid), + {_, AccSupPid, _, _} = lists:keyfind(ranch_acceptors_sup, 1, Children), + 1 = erlang:trace(ListSupPid, true, [procs]), + 1 = erlang:trace(AccSupPid, true, [procs]), + Port = ranch:get_port(tcp_clean_set_max_connections), + N = 20, + ok = connect_loop(Port, N*5, 0), + %% Randomly set max connections. + [spawn(ranch, set_max_connections, [tcp_clean_set_max_connections, Max]) || + Max <- lists:flatten(lists:duplicate(N, [6, 4, 8, infinity]))], + receive + {trace, _, spawn, _, _} -> + error(dirty_set_max_connections) + after + 2000 -> ok + end, + _ = erlang:trace(all, false, [all]), + ok = clean_traces(), + ranch:stop_listener(Name). + tcp_upgrade(_) -> Name = tcp_upgrade, {ok, _} = ranch:start_listener(Name, 1, |