diff options
Diffstat (limited to 'erts/emulator/test/port_SUITE.erl')
| -rw-r--r-- | erts/emulator/test/port_SUITE.erl | 158 |
1 files changed, 150 insertions, 8 deletions
diff --git a/erts/emulator/test/port_SUITE.erl b/erts/emulator/test/port_SUITE.erl index ee07699884..4323849465 100644 --- a/erts/emulator/test/port_SUITE.erl +++ b/erts/emulator/test/port_SUITE.erl @@ -83,6 +83,7 @@ bad_port_messages/1, basic_ping/1, cd/1, + cd_relative/1, close_deaf_port/1, count_fds/1, dying_port/1, @@ -91,6 +92,7 @@ exit_status/1, exit_status_multi_scheduling_block/1, huge_env/1, + pipe_limit_env/1, input_only/1, iter_max_ports/1, line/1, @@ -102,6 +104,7 @@ mon_port_name_demonitor/1, mon_port_named/1, mon_port_origin_dies/1, + mon_port_owner_dies/1, mon_port_pid_demonitor/1, mon_port_remote_on_remote/1, mon_port_driver_die/1, @@ -137,7 +140,7 @@ win_massive_client/1 ]). --export([do_iter_max_ports/2]). +-export([do_iter_max_ports/2, relative_cd/0]). %% Internal exports. -export([tps/3]). @@ -158,7 +161,7 @@ all() -> {group, multiple_packets}, parallell, dying_port, port_program_with_path, open_input_file_port, open_output_file_port, name1, env, huge_env, bad_env, cd, - bad_args, + cd_relative, pipe_limit_env, bad_args, exit_status, iter_max_ports, count_fds, t_exit, {group, tps}, line, stderr_to_stdout, otp_3906, otp_4389, win_massive, mix_up_ports, otp_5112, otp_5119, @@ -171,6 +174,7 @@ all() -> mon_port_remote_on_remote, mon_port_bad_remote_on_local, mon_port_origin_dies, + mon_port_owner_dies, mon_port_named, mon_port_bad_named, mon_port_pid_demonitor, @@ -1002,6 +1006,55 @@ huge_env(Config) when is_list(Config) -> ct:fail("Open port failed ~p:~p",[E,R]) end. +%% Test to spawn program with command payload buffer +%% just around pipe capacity (9f779819f6bda734c5953468f7798) +pipe_limit_env(Config) when is_list(Config) -> + Cmd = "true", + CmdSize = command_payload_size(Cmd), + Limits = [4096, 16384, 65536], % Try a couple of common pipe buffer sizes + + lists:foreach(fun(Lim) -> + lists:foreach(fun(L) -> pipe_limit_env_do(L, Cmd, CmdSize) + end, lists:seq(Lim-5, Lim+5)) + end, Limits), + ok. + +pipe_limit_env_do(Bytes, Cmd, CmdSize) -> + case env_of_bytes(Bytes-CmdSize) of + [] -> skip; + Env -> + try erlang:open_port({spawn,Cmd},[exit_status, {env, Env}]) of + P -> + receive + {P, {exit_status,N}} = M -> + %% Bug caused exit_status 150 (EINVAL+128) + 0 = N + end + catch E:R -> + %% Have to catch the error here, as printing the stackdump + %% in the ct log is way to heavy for some test machines. + ct:fail("Open port failed ~p:~p",[E,R]) + end + end. + +%% environ format: KEY=VALUE\0 +env_of_bytes(Bytes) when Bytes > 3 -> + Env = [{"X",lists:duplicate(Bytes-3, $x)}]; +env_of_bytes(_) -> []. + +%% White box assumption about payload written to pipe +%% for Cmd and current environment (see spawn_start in sys_driver.c) +command_payload_size(Cmd) -> + EnvSize = lists:foldl(fun(E,Acc) -> length(E) + 1 + Acc end, + 0, os:getenv()), + {ok, PWD} = file:get_cwd(), + (4 % buffsz + + 4 % flags + + 5 + length(Cmd) + 1 % "exec $Cmd" + + length(PWD) + 1 % $PWD + + 1 % nullbuff + + 4 % env_len + + EnvSize). %% Test bad 'args' options. bad_args(Config) when is_list(Config) -> @@ -1036,8 +1089,7 @@ cd(Config) when is_list(Config) -> Cmd = Program ++ " -pz " ++ DataDir ++ " -noshell -s port_test pwd -s erlang halt", _ = open_port({spawn, Cmd}, - [{cd, TestDir}, - {line, 256}]), + [{cd, TestDir}, {line, 256}]), receive {_, {data, {eol, String}}} -> case filename_equal(String, TestDir) of @@ -1063,7 +1115,74 @@ cd(Config) when is_list(Config) -> Other3 -> ct:fail({env, Other3}) end, - ok. + + InvalidDir = filename:join(DataDir, "invaliddir"), + try open_port({spawn, Cmd}, + [{cd, InvalidDir}, exit_status, {line, 256}]) of + _ -> + receive + {_, {exit_status, _}} -> + ok; + Other4 -> + ct:fail({env, Other4}) + end + catch error:eacces -> + %% This happens on Windows + ok + end, + + %% Check that there are no lingering messages + receive + Other5 -> + ct:fail({env, Other5}) + after 10 -> + ok + end. + +%% Test that an emulator that has set it's cwd to +%% something other then when it started, can use +%% relative {cd,"./"} to open port and that cd will +%% be relative the new cwd and not the original +cd_relative(Config) -> + + Program = atom_to_list(lib:progname()), + DataDir = proplists:get_value(data_dir, Config), + TestDir = filename:join(DataDir, "dir"), + + Cmd = Program ++ " -pz " ++ filename:dirname(code:where_is_file("port_SUITE.beam")) ++ + " -noshell -s port_SUITE relative_cd -s erlang halt", + + _ = open_port({spawn, Cmd}, [{line, 256}, {cd, TestDir}]), + + receive + {_, {data, {eol, String}}} -> + case filename_equal(String, TestDir) of + true -> + ok; + false -> + ct:fail({cd_relative, String}) + end; + Other -> + ct:fail(Other) + end. + +relative_cd() -> + + Program = atom_to_list(lib:progname()), + ok = file:set_cwd(".."), + {ok, Cwd} = file:get_cwd(), + + Cmd = Program ++ " -pz " ++ Cwd ++ + " -noshell -s port_test pwd -s erlang halt", + + _ = open_port({spawn, Cmd}, [{line, 256}, {cd, "./dir"}, exit_status]), + + receive + {_, {data, {eol, String}}} -> + io:format("~s~n",[String]); + Other -> + io:format("ERROR: ~p~n",[Other]) + end. filename_equal(A, B) -> case os:type() of @@ -1867,7 +1986,7 @@ exit_status_msb_test(Config, SleepSecs) when is_list(Config) -> Parent = self(), io:format("SleepSecs = ~p~n", [SleepSecs]), PortProg = "sleep " ++ integer_to_list(SleepSecs), - Start = erlang:monotonic_time(micro_seconds), + Start = erlang:monotonic_time(microsecond), NoProcs = case NoSchedsOnln of NProcs when NProcs < ?EXIT_STATUS_MSB_MAX_PROCS -> NProcs; @@ -1941,12 +2060,12 @@ exit_status_msb_test(Config, SleepSecs) when is_list(Config) -> receive {P, started, SIds} -> SIds end end, Procs), - StartedTime = (erlang:monotonic_time(micro_seconds) - Start)/1000000, + StartedTime = (erlang:monotonic_time(microsecond) - Start)/1000000, io:format("StartedTime = ~p~n", [StartedTime]), true = StartedTime < SleepSecs, erlang:system_flag(multi_scheduling, block), lists:foreach(fun (P) -> receive {P, done} -> ok end end, Procs), - DoneTime = (erlang:monotonic_time(micro_seconds) - Start)/1000000, + DoneTime = (erlang:monotonic_time(microsecond) - Start)/1000000, io:format("DoneTime = ~p~n", [DoneTime]), true = DoneTime > SleepSecs, ok = verify_multi_scheduling_blocked(), @@ -2520,6 +2639,29 @@ mon_port_origin_dies(Config) -> Port5 ! {self(), {command, <<"1">>}}, % make port quit ok. +%% Port and Monitor owner dies before port is closed +%% This testcase checks for a regression memory leak in erts +%% when the controlling and monitoring process is the same process +%% and the process dies +mon_port_owner_dies(Config) -> + Self = self(), + Proc = spawn(fun() -> + Port = create_port(Config, ["-h1", "-q"]), + Self ! {test_started, Port}, + erlang:monitor(port, Port), + receive stop -> ok end + end), + erlang:monitor(process, Proc), % we want to sync with its death + Port = receive {test_started,P} -> P + after 1000 -> ?assert(false) end, + ?assertMatch({proc_monitors, true, port_monitored_by, true}, + port_is_monitored(Proc, Port)), + Proc ! stop, + %% receive from monitor + receive ExitP5 -> ?assertMatch({'DOWN', _, process, Proc, _}, ExitP5) + after 1000 -> ?assert(false) end, + ok. + %% Monitor a named port mon_port_named(Config) -> Name6 = test_port6, |