diff options
Diffstat (limited to 'erts/emulator/test/port_SUITE.erl')
| -rw-r--r-- | erts/emulator/test/port_SUITE.erl | 434 |
1 files changed, 359 insertions, 75 deletions
diff --git a/erts/emulator/test/port_SUITE.erl b/erts/emulator/test/port_SUITE.erl index 79abcbde5f..ee07699884 100644 --- a/erts/emulator/test/port_SUITE.erl +++ b/erts/emulator/test/port_SUITE.erl @@ -74,27 +74,68 @@ %% --export([all/0, suite/0, groups/0, - init_per_testcase/2, end_per_testcase/2, - init_per_suite/1, end_per_suite/1, - stream_small/1, stream_big/1, - basic_ping/1, slow_writes/1, bad_packet/1, bad_port_messages/1, - mul_basic/1, mul_slow_writes/1, - dying_port/1, port_program_with_path/1, - open_input_file_port/1, open_output_file_port/1, - count_fds/1, - iter_max_ports/1, eof/1, input_only/1, output_only/1, - name1/1, - t_binary/1, parallell/1, t_exit/1, - env/1, huge_env/1, bad_env/1, cd/1, exit_status/1, - bad_args/1, - tps_16_bytes/1, tps_1K/1, line/1, stderr_to_stdout/1, - otp_3906/1, otp_4389/1, win_massive/1, win_massive_client/1, - mix_up_ports/1, otp_5112/1, otp_5119/1, otp_6224/1, - exit_status_multi_scheduling_block/1, ports/1, - spawn_driver/1, spawn_executable/1, close_deaf_port/1, - port_setget_data/1, - unregister_name/1, parallelism_option/1]). +-export([all/0, suite/0, groups/0, init_per_testcase/2, end_per_testcase/2, + init_per_suite/1, end_per_suite/1]). +-export([ + bad_args/1, + bad_env/1, + bad_packet/1, + bad_port_messages/1, + basic_ping/1, + cd/1, + close_deaf_port/1, + count_fds/1, + dying_port/1, + env/1, + eof/1, + exit_status/1, + exit_status_multi_scheduling_block/1, + huge_env/1, + input_only/1, + iter_max_ports/1, + line/1, + mix_up_ports/1, + mon_port_invalid_type/1, + mon_port_bad_named/1, + mon_port_bad_remote_on_local/1, + mon_port_local/1, + mon_port_name_demonitor/1, + mon_port_named/1, + mon_port_origin_dies/1, + mon_port_pid_demonitor/1, + mon_port_remote_on_remote/1, + mon_port_driver_die/1, + mon_port_driver_die_demonitor/1, + mul_basic/1, + mul_slow_writes/1, + name1/1, + open_input_file_port/1, + open_output_file_port/1, + otp_3906/1, + otp_4389/1, + otp_5112/1, + otp_5119/1, + otp_6224/1, + output_only/1, + parallelism_option/1, + parallell/1, + port_program_with_path/1, + port_setget_data/1, + ports/1, + slow_writes/1, + spawn_driver/1, + spawn_executable/1, + stderr_to_stdout/1, + stream_big/1, + stream_small/1, + t_binary/1, + t_exit/1, + tps_16_bytes/1, + tps_1K/1, + unregister_name/1, + win_massive/1, + win_massive_client/1 +]). -export([do_iter_max_ports/2]). @@ -105,12 +146,13 @@ -include_lib("common_test/include/ct.hrl"). -include_lib("kernel/include/file.hrl"). +-include_lib("eunit/include/eunit.hrl"). suite() -> [{ct_hooks,[ts_install_cth]}, {timetrap, {seconds, 10}}]. -all() -> +all() -> [otp_6224, {group, stream}, basic_ping, slow_writes, bad_packet, bad_port_messages, {group, options}, {group, multiple_packets}, parallell, dying_port, @@ -123,14 +165,32 @@ all() -> exit_status_multi_scheduling_block, ports, spawn_driver, spawn_executable, close_deaf_port, unregister_name, port_setget_data, - parallelism_option]. - -groups() -> + parallelism_option, + mon_port_invalid_type, + mon_port_local, + mon_port_remote_on_remote, + mon_port_bad_remote_on_local, + mon_port_origin_dies, + mon_port_named, + mon_port_bad_named, + mon_port_pid_demonitor, + mon_port_name_demonitor, + mon_port_driver_die, + mon_port_driver_die_demonitor + ]. + +groups() -> [{stream, [], [stream_small, stream_big]}, {options, [], [t_binary, eof, input_only, output_only]}, {multiple_packets, [], [mul_basic, mul_slow_writes]}, {tps, [], [tps_16_bytes, tps_1K]}]. +init_per_testcase(Case, Config) when Case =:= mon_port_driver_die; + Case =:= mon_port_driver_die_demonitor -> + case erlang:system_info(schedulers_online) of + 1 -> {skip, "Need 2 schedulers to run testcase"}; + _ -> Config + end; init_per_testcase(Case, Config) -> [{testcase, Case} |Config]. @@ -160,7 +220,7 @@ do_win_massive() -> ct:timetrap({minutes, 6}), SuiteDir = filename:dirname(code:which(?MODULE)), Ports = " +Q 8192", - {ok, Node} = + {ok, Node} = test_server:start_node(win_massive, slave, [{args, " -pa " ++ SuiteDir ++ Ports}]), @@ -169,7 +229,7 @@ do_win_massive() -> ok. win_massive_client(N) -> - {ok,P}=gen_tcp:listen(?WIN_MASSIVE_PORT,[{reuseaddr,true}]), + {ok,P}=gen_tcp:listen(?WIN_MASSIVE_PORT,[{reuseaddr,true}]), L = win_massive_loop(P,N), Len = length(L), lists:foreach(fun(E) -> @@ -278,7 +338,7 @@ bad_port_messages(Config) when is_list(Config) -> bad_message(PortTest, {self(),{connect,no_pid}}), ok. -bad_message(PortTest, Message) -> +bad_message(PortTest, Message) -> P = open_port({spawn,PortTest}, []), P ! Message, receive @@ -773,7 +833,7 @@ line(Config) when is_list(Config) -> S1 = lists:flatten(io_lib:format("-l~w", [length(L1)])), io:format("S1 = ~w, L1 = ~w~n", [S1,L1]), port_expect(Config,[{L1, - [{eol, Packet1}, {noeol, Packet2}, eof]}], 0, + [{eol, Packet1}, {noeol, Packet2}, eof]}], 0, S1, [{line,Siz},eof]), %% Test that lonely <CR> Don't get treated as newlines port_expect(Config,[{lists:append([Packet1, [13], Packet2, @@ -844,9 +904,9 @@ env(Config) when is_list(Config) -> {"glurf","a glorfy string"}]), %% A lot of non existing variables (mingled with existing) - NotExistingList = [{lists:flatten(io_lib:format("V~p_not_existing",[X])),false} + NotExistingList = [{lists:flatten(io_lib:format("V~p_not_existing",[X])),false} || X <- lists:seq(1,150)], - ExistingList = [{lists:flatten(io_lib:format("V~p_existing",[X])),"a_value"} + ExistingList = [{lists:flatten(io_lib:format("V~p_existing",[X])),"a_value"} || X <- lists:seq(1,150)], env_slave(Temp, lists:sort(ExistingList ++ NotExistingList)), ok. @@ -1320,22 +1380,22 @@ spawn_driver(Config) when is_list(Config) -> ok = load_driver(Path, "echo_drv"), Port = erlang:open_port({spawn_driver, "echo_drv"}, []), Port ! {self(), {command, "Hello port!"}}, - receive - {Port, {data, "Hello port!"}} = Msg1 -> + receive + {Port, {data, "Hello port!"}} = Msg1 -> io:format("~p~n", [Msg1]), - ok; + ok; Other -> ct:fail({unexpected, Other}) end, Port ! {self(), close}, receive {Port, closed} -> ok end, - Port2 = erlang:open_port({spawn_driver, "echo_drv -Hello port?"}, + Port2 = erlang:open_port({spawn_driver, "echo_drv -Hello port?"}, []), - receive - {Port2, {data, "Hello port?"}} = Msg2 -> + receive + {Port2, {data, "Hello port?"}} = Msg2 -> io:format("~p~n", [Msg2]), - ok; + ok; Other2 -> ct:fail({unexpected2, Other2}) end, @@ -1354,23 +1414,23 @@ parallelism_option(Config) when is_list(Config) -> [{parallelism, true}]), {parallelism, true} = erlang:port_info(Port, parallelism), Port ! {self(), {command, "Hello port!"}}, - receive - {Port, {data, "Hello port!"}} = Msg1 -> + receive + {Port, {data, "Hello port!"}} = Msg1 -> io:format("~p~n", [Msg1]), - ok; + ok; Other -> ct:fail({unexpected, Other}) end, Port ! {self(), close}, receive {Port, closed} -> ok end, - Port2 = erlang:open_port({spawn_driver, "echo_drv -Hello port?"}, + Port2 = erlang:open_port({spawn_driver, "echo_drv -Hello port?"}, [{parallelism, false}]), {parallelism, false} = erlang:port_info(Port2, parallelism), - receive - {Port2, {data, "Hello port?"}} = Msg2 -> + receive + {Port2, {data, "Hello port?"}} = Msg2 -> io:format("~p~n", [Msg2]), - ok; + ok; Other2 -> ct:fail({unexpected2, Other2}) end, @@ -1389,20 +1449,20 @@ spawn_executable(Config) when is_list(Config) -> ["echo_args"] = run_echo_args(DataDir,[binary, "echo_args"]), ["echo_arguments"] = run_echo_args(DataDir,["echo_arguments"]), ["echo_arguments"] = run_echo_args(DataDir,[binary, "echo_arguments"]), - [ExactFile1,"hello world","dlrow olleh"] = + [ExactFile1,"hello world","dlrow olleh"] = run_echo_args(DataDir,[ExactFile1,"hello world","dlrow olleh"]), [ExactFile1] = run_echo_args(DataDir,[default]), [ExactFile1] = run_echo_args(DataDir,[binary, default]), - [ExactFile1,"hello world","dlrow olleh"] = + [ExactFile1,"hello world","dlrow olleh"] = run_echo_args(DataDir,[switch_order,ExactFile1,"hello world", "dlrow olleh"]), - [ExactFile1,"hello world","dlrow olleh"] = + [ExactFile1,"hello world","dlrow olleh"] = run_echo_args(DataDir,[binary,switch_order,ExactFile1,"hello world", "dlrow olleh"]), [ExactFile1,"hello world","dlrow olleh"] = run_echo_args(DataDir,[default,"hello world","dlrow olleh"]), - [ExactFile1,"hello world","dlrow olleh"] = + [ExactFile1,"hello world","dlrow olleh"] = run_echo_args_2("\""++ExactFile1++"\" "++"\"hello world\" \"dlrow olleh\""), [ExactFile1,"hello world","dlrow olleh"] = run_echo_args_2(unicode:characters_to_binary("\""++ExactFile1++"\" "++"\"hello world\" \"dlrow olleh\"")), @@ -1418,7 +1478,7 @@ spawn_executable(Config) when is_list(Config) -> [ExactFile2] = run_echo_args(SpaceDir,[]), ["echo_args"] = run_echo_args(SpaceDir,["echo_args"]), ["echo_arguments"] = run_echo_args(SpaceDir,["echo_arguments"]), - [ExactFile2,"hello world","dlrow olleh"] = + [ExactFile2,"hello world","dlrow olleh"] = run_echo_args(SpaceDir,[ExactFile2,"hello world","dlrow olleh"]), [ExactFile2,"hello world","dlrow olleh"] = run_echo_args(SpaceDir,[binary, ExactFile2,"hello world","dlrow olleh"]), @@ -1429,16 +1489,16 @@ spawn_executable(Config) when is_list(Config) -> run_echo_args(SpaceDir,[binary, ExactFile2,"hello \"world\"","\"dlrow\" olleh"]), [ExactFile2] = run_echo_args(SpaceDir,[default]), - [ExactFile2,"hello world","dlrow olleh"] = + [ExactFile2,"hello world","dlrow olleh"] = run_echo_args(SpaceDir,[switch_order,ExactFile2,"hello world", "dlrow olleh"]), - [ExactFile2,"hello world","dlrow olleh"] = + [ExactFile2,"hello world","dlrow olleh"] = run_echo_args(SpaceDir,[default,"hello world","dlrow olleh"]), - [ExactFile2,"hello world","dlrow olleh"] = + [ExactFile2,"hello world","dlrow olleh"] = run_echo_args_2("\""++ExactFile2++"\" "++"\"hello world\" \"dlrow olleh\""), [ExactFile2,"hello world","dlrow olleh"] = run_echo_args_2(unicode:characters_to_binary("\""++ExactFile2++"\" "++"\"hello world\" \"dlrow olleh\"")), - ExeExt = + ExeExt = case string:to_lower(lists:last(string:tokens(ExactFile2,"."))) of "exe" -> ".exe"; @@ -1452,17 +1512,17 @@ spawn_executable(Config) when is_list(Config) -> [ExactFile3] = run_echo_args(SpaceDir,Executable2,[]), ["echo_args"] = run_echo_args(SpaceDir,Executable2,["echo_args"]), ["echo_arguments"] = run_echo_args(SpaceDir,Executable2,["echo_arguments"]), - [ExactFile3,"hello world","dlrow olleh"] = + [ExactFile3,"hello world","dlrow olleh"] = run_echo_args(SpaceDir,Executable2,[ExactFile3,"hello world","dlrow olleh"]), [ExactFile3] = run_echo_args(SpaceDir,Executable2,[default]), - [ExactFile3,"hello world","dlrow olleh"] = + [ExactFile3,"hello world","dlrow olleh"] = run_echo_args(SpaceDir,Executable2, [switch_order,ExactFile3,"hello world", "dlrow olleh"]), - [ExactFile3,"hello world","dlrow olleh"] = + [ExactFile3,"hello world","dlrow olleh"] = run_echo_args(SpaceDir,Executable2, [default,"hello world","dlrow olleh"]), - [ExactFile3,"hello world","dlrow olleh"] = + [ExactFile3,"hello world","dlrow olleh"] = run_echo_args_2("\""++ExactFile3++"\" "++"\"hello world\" \"dlrow olleh\""), [ExactFile3,"hello world","dlrow olleh"] = run_echo_args_2(unicode:characters_to_binary("\""++ExactFile3++"\" "++"\"hello world\" \"dlrow olleh\"")), @@ -1510,11 +1570,11 @@ test_bat_file(Dir) -> <<"\r\n">>], file:write_file(Full,list_to_binary(D)), EF = filename:basename(FN), - [DN,"hello","world"] = + [DN,"hello","world"] = run_echo_args(Dir,FN, [default,"hello","world"]), %% The arg0 argumant should be ignored when running batch files - [DN,"hello","world"] = + [DN,"hello","world"] = run_echo_args(Dir,FN, ["knaskurt","hello","world"]), EF = filename:basename(DN), @@ -1533,10 +1593,10 @@ test_sh_file(Dir) -> <<"done\n">>], file:write_file(Full,list_to_binary(D)), chmodplusx(Full), - [Full,"hello","world"] = + [Full,"hello","world"] = run_echo_args(Dir,FN, [default,"hello","world"]), - [Full,"hello","world of spaces"] = + [Full,"hello","world of spaces"] = run_echo_args(Dir,FN, [default,"hello","world of spaces"]), file:write_file(filename:join([Dir,"testfile1"]),<<"testdata1">>), @@ -1544,7 +1604,7 @@ test_sh_file(Dir) -> Pattern = filename:join([Dir,"testfile*"]), L = filelib:wildcard(Pattern), 2 = length(L), - [Full,"hello",Pattern] = + [Full,"hello",Pattern] = run_echo_args(Dir,FN, [default,"hello",Pattern]), ok. @@ -1620,10 +1680,10 @@ mix_up_ports(Config) when is_list(Config) -> ok = load_driver(Path, "echo_drv"), Port = erlang:open_port({spawn, "echo_drv"}, []), Port ! {self(), {command, "Hello port!"}}, - receive - {Port, {data, "Hello port!"}} = Msg1 -> + receive + {Port, {data, "Hello port!"}} = Msg1 -> io:format("~p~n", [Msg1]), - ok; + ok; Other -> ct:fail({unexpected, Other}) end, @@ -1631,7 +1691,7 @@ mix_up_ports(Config) when is_list(Config) -> receive {Port, closed} -> ok end, loop(start, done, fun(P) -> - Q = + Q = (catch erlang:open_port({spawn, "echo_drv"}, [])), %% io:format("~p ", [Q]), if is_port(Q) -> @@ -1642,7 +1702,7 @@ mix_up_ports(Config) when is_list(Config) -> end end), Port ! {self(), {command, "Hello again port!"}}, - receive + receive Msg2 -> ct:fail({unexpected, Msg2}) after 1000 -> @@ -1802,7 +1862,7 @@ exit_status_msb_test(Config, SleepSecs) when is_list(Config) -> %% We want to start port programs from as many schedulers as possible %% and we want these port programs to terminate while multi-scheduling %% is blocked. - %% + %% NoSchedsOnln = erlang:system_info(schedulers_online), Parent = self(), io:format("SleepSecs = ~p~n", [SleepSecs]), @@ -2214,7 +2274,7 @@ ports_snapshots(0, _, _) -> ok; ports_snapshots(Iter, TrafficPid, OtherPorts) -> - TrafficPid ! start, + TrafficPid ! start, receive after 1 -> ok end, Snapshot = erlang:ports(), @@ -2243,7 +2303,7 @@ ports_traffic_stopped(MaxPorts, {PortList, PortCnt}) -> end. ports_traffic_started(MaxPorts, {PortList, PortCnt}, EventList) -> - receive + receive {Pid, stop} -> %%io:format("Traffic stopped in ~p\n",[self()]), Pid ! {self(), EventList, PortList}, @@ -2256,7 +2316,7 @@ ports_traffic_started(MaxPorts, {PortList, PortCnt}, EventList) -> ports_traffic_do(MaxPorts, {PortList, PortCnt}, EventList) -> N = uniform(MaxPorts), case N > PortCnt of - true -> % Open port + true -> % Open port P = open_port({spawn, "exit_drv"}, []), %%io:format("Created port ~p\n",[P]), ports_traffic_started(MaxPorts, {[P|PortList], PortCnt+1}, @@ -2270,7 +2330,7 @@ ports_traffic_do(MaxPorts, {PortList, PortCnt}, EventList) -> [{close,P}|EventList]) end. -ports_verify(Ports, PortsAfter, EventList) -> +ports_verify(Ports, PortsAfter, EventList) -> %%io:format("Candidate=~p\nEvents=~p\n", [PortsAfter, EventList]), case lists:sort(Ports) =:= lists:sort(PortsAfter) of true -> @@ -2280,10 +2340,10 @@ ports_verify(Ports, PortsAfter, EventList) -> %% Note that we track the event list "backwards", undoing open/close: case EventList of [{open,P} | Tail] -> - ports_verify(Ports, lists:delete(P,PortsAfter), Tail); + ports_verify(Ports, lists:delete(P,PortsAfter), Tail); [{close,P} | Tail] -> - ports_verify(Ports, [P | PortsAfter], Tail); + ports_verify(Ports, [P | PortsAfter], Tail); [] -> ct:fail("Inconsistent snapshot from erlang:ports()") @@ -2391,3 +2451,227 @@ wait_until(Fun) -> receive after 100 -> ok end, wait_until(Fun) end. + +%% Attempt to monitor pid as port, and port as pid +mon_port_invalid_type(_Config) -> + Port = hd(erlang:ports()), + ?assertError(badarg, erlang:monitor(port, self())), + ?assertError(badarg, erlang:monitor(process, Port)), + ok. + +%% With local port +mon_port_local(Config) -> + Port1 = create_port(Config, ["-h1", "-q"]), % will close after we send 1 byte + Ref1 = erlang:monitor(port, Port1), + ?assertMatch({proc_monitors, true, port_monitored_by, true}, + port_is_monitored(self(), Port1)), + Port1 ! {self(), {command, <<"1">>}}, % port test will close self immediately + receive ExitP1 -> ?assertMatch({'DOWN', Ref1, port, Port1, _}, ExitP1) + after 1000 -> ?assert(false) end, + ?assertMatch({proc_monitors, false, port_monitored_by, false}, + port_is_monitored(self(), Port1)), + + %% Trying to re-monitor a port which exists but is not healthy will + %% succeed but then will immediately send DOWN + Ref2 = erlang:monitor(port, Port1), + receive ExitP2 -> ?assertMatch({'DOWN', Ref2, port, Port1, _}, ExitP2) + after 1000 -> ?assert(false) end, + ok. + +%% With remote port on remote node (should fail) +mon_port_remote_on_remote(_Config) -> + Port3 = binary_to_term(<<131, 102, % Ext term format: PORT_EXT + 100, 0, 13, "fgsfds@fgsfds", % Node :: ATOM_EXT + 1:32/big, % Id + 0>>), % Creation + ?assertError(badarg, erlang:monitor(port, Port3)), + ok. + +%% Remote port belongs to this node and does not exist +%% Port4 produces #Port<0.167772160> which should not exist in a test run +mon_port_bad_remote_on_local(_Config) -> + Port4 = binary_to_term(<<131, 102, % Ext term format: PORT_EXT + 100, 0, 13, "nonode@nohost", % Node + 167772160:32/big, % Id + 0>>), % Creation + ?assertError(badarg, erlang:monitor(port, Port4)), + ok. + +%% Monitor owner (origin) dies before port is closed +mon_port_origin_dies(Config) -> + Port5 = create_port(Config, ["-h1", "-q"]), % will close after we send 1 byte + Self5 = self(), + Proc5 = spawn(fun() -> + Self5 ! test5_started, + erlang:monitor(port, Port5), + receive stop -> ok end + end), + erlang:monitor(process, Proc5), % we want to sync with its death + receive test5_started -> ok + after 1000 -> ?assert(false) end, + ?assertMatch({proc_monitors, true, port_monitored_by, true}, + port_is_monitored(Proc5, Port5)), + Proc5 ! stop, + % receive from monitor (removing race condition) + receive ExitP5 -> ?assertMatch({'DOWN', _, process, Proc5, _}, ExitP5) + after 1000 -> ?assert(false) end, + ?assertMatch({proc_monitors, false, port_monitored_by, false}, + port_is_monitored(Proc5, Port5)), + Port5 ! {self(), {command, <<"1">>}}, % make port quit + ok. + +%% Monitor a named port +mon_port_named(Config) -> + Name6 = test_port6, + Port6 = create_port(Config, ["-h1", "-q"]), % will close after we send 1 byte + erlang:register(Name6, Port6), + erlang:monitor(port, Name6), + ?assertMatch({proc_monitors, true, port_monitored_by, true}, + port_is_monitored(self(), Name6)), + Port6 ! {self(), {command, <<"1">>}}, % port test will close self immediately + receive ExitP6 -> ?assertMatch({'DOWN', _, port, {Name6, _}, _}, ExitP6) + after 1000 -> ?assert(false) end, + ?assertMatch({proc_monitors, false, port_monitored_by, false}, + port_is_monitored(self(), Name6)), + ok. + +%% Named does not exist: Should succeed but immediately send 'DOWN' +mon_port_bad_named(_Config) -> + Name7 = test_port7, + erlang:monitor(port, Name7), + receive {'DOWN', _, port, {Name7, _}, noproc} -> ok + after 1000 -> ?assert(false) end, + ok. + +%% Monitor a pid and demonitor by ref +mon_port_pid_demonitor(Config) -> + Port8 = create_port(Config, ["-h1", "-q"]), % will close after we send 1 byte + Ref8 = erlang:monitor(port, Port8), + ?assertMatch({proc_monitors, true, port_monitored_by, true}, + port_is_monitored(self(), Port8)), + erlang:demonitor(Ref8), + ?assertMatch({proc_monitors, false, port_monitored_by, false}, + port_is_monitored(self(), Port8)), + Port8 ! {self(), {command, <<"1">>}}, % port test will close self immediately + ok. + +%% Monitor by name and demonitor by ref +mon_port_name_demonitor(Config) -> + Name9 = test_port9, + Port9 = create_port(Config, ["-h1", "-q"]), % will close after we send 1 byte + erlang:register(Name9, Port9), + Ref9 = erlang:monitor(port, Name9), + ?assertMatch({proc_monitors, true, port_monitored_by, true}, + port_is_monitored(self(), Name9)), + erlang:demonitor(Ref9), + ?assertMatch({proc_monitors, false, port_monitored_by, false}, + port_is_monitored(self(), Name9)), + Port9 ! {self(), {command, <<"1">>}}, % port test will close self immediately + ok. + +%% 1. Spawn a port which will sleep 3 seconds +%% 2. Port driver and dies horribly (via C driver_failure call). This should +%% mark port as exiting or something. +%% 3. While the command happens, a monitor is requested on the port +mon_port_driver_die(Config) -> + erlang:process_flag(scheduler, 1), + + Path = proplists:get_value(data_dir, Config), + ok = load_driver(Path, "sleep_failure_drv"), + Port = open_port({spawn, "sleep_failure_drv"}, []), + + Self = self(), + erlang:spawn_opt(fun() -> + timer:sleep(250), + Ref = erlang:monitor(port, Port), + %% Now check that msg actually arrives + receive + {'DOWN', Ref, _Port2, _, _} = M -> Self ! M + after 3000 -> Self ! no_down_message + end + end,[{scheduler, 2}]), + Port ! {self(), {command, "Fail, please!"}}, + receive + A when is_atom(A) -> ?assertEqual(A, 'A_should_be_printed'); + {'DOWN', _R, port, Port, noproc} -> ok; + {'DOWN', _R, _P, _, _} = M -> ct:fail({got_wrong_down,M}) + after 5000 -> ?assert(false) + end, + ok. + + +%% 1. Spawn a port which will sleep 3 seconds +%% 2. Monitor port +%% 3. Port driver and dies horribly (via C driver_failure call). This should +%% mark port as exiting or something. +%% 4. While the command happens, a demonitor is requested on the port +mon_port_driver_die_demonitor(Config) -> + erlang:process_flag(scheduler, 1), + + Path = proplists:get_value(data_dir, Config), + ok = load_driver(Path, "sleep_failure_drv"), + Port = open_port({spawn, "sleep_failure_drv"}, []), + + Self = self(), + erlang:spawn_opt( + fun() -> + Ref = erlang:monitor(port, Port), + Self ! Ref, + timer:sleep(250), + erlang:demonitor(Ref), + %% Now check that msg still arrives, + %% the demon should have arrived after + %% the port exited + receive + {'DOWN', Ref, _Port2, _, _} = M -> Self ! M + after 3000 -> Self ! no_down_message + end + end,[{scheduler, 2}]), + Ref = receive R -> R end, + Port ! {self(), {command, "Fail, please!"}}, + receive + {'DOWN', Ref, port, Port, normal} -> ok; + {'DOWN', _R, _P, _, _} = M -> ct:fail({got_wrong_down,M}) + after 5000 -> ?assert(false) + end, + ok. + +%% @doc Makes a controllable port for testing. Underlying mechanism of this +%% port is not important, only important is our ability to close/kill it or +%% have it monitored. +create_port(Config, Args) -> + DataDir = ?config(data_dir, Config), + %% Borrow port test utility from port SUITE + Program = filename:join([DataDir, "port_test"]), + erlang:open_port({spawn_executable, Program}, [{args, Args}]). + +%% @doc Checks if process Pid exists, and if so, if its monitoring (or not) +%% the Port (or if port doesn't exist, we assume answer is no). +port_is_monitored(Pid, Port) when is_pid(Pid), is_port(Port) -> + %% Variant for when port is a port id (port()) + A = case erlang:process_info(Pid, monitors) of + undefined -> false; + {monitors, ProcMTargets} -> lists:member({port, Port}, ProcMTargets) + end, + B = case erlang:port_info(Port, monitored_by) of + undefined -> false; + {monitored_by, PortMonitors} -> lists:member(Pid, PortMonitors) + end, + {proc_monitors, A, port_monitored_by, B}; +port_is_monitored(Pid, PortName) when is_pid(Pid), is_atom(PortName) -> + %% Variant for when port is an atom + A = case erlang:process_info(Pid, monitors) of + undefined -> false; + {monitors, ProcMTargets} -> + lists:member({port, {PortName, node()}}, ProcMTargets) + end, + B = case erlang:whereis(PortName) of + undefined -> false; % name is not registered or is dead + PortId -> + case erlang:port_info(PortId, monitored_by) of + undefined -> false; % is dead + {monitored_by, PortMonitors} -> + lists:member(Pid, PortMonitors) + end + end, + {proc_monitors, A, port_monitored_by, B}. |