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-rw-r--r--erts/emulator/test/busy_port_SUITE.erl42
1 files changed, 40 insertions, 2 deletions
diff --git a/erts/emulator/test/busy_port_SUITE.erl b/erts/emulator/test/busy_port_SUITE.erl
index b1600c31bb..644848daf5 100644
--- a/erts/emulator/test/busy_port_SUITE.erl
+++ b/erts/emulator/test/busy_port_SUITE.erl
@@ -20,7 +20,7 @@
-module(busy_port_SUITE).
--export([all/0, suite/0, end_per_testcase/2,
+-export([all/0, suite/0, init_per_testcase/2, end_per_testcase/2,
io_to_busy/1, message_order/1, send_3/1,
system_monitor/1, no_trap_exit/1,
no_trap_exit_unlinked/1, trap_exit/1, multiple_writers/1,
@@ -45,6 +45,11 @@ all() ->
scheduling_delay_busy,scheduling_delay_busy_nosuspend,
scheduling_busy_link].
+init_per_testcase(_Case, Config) when is_list(Config) ->
+ Killer = spawn(fun() -> killer_loop([]) end),
+ register(killer_process, Killer),
+ Config.
+
end_per_testcase(_Case, Config) when is_list(Config) ->
case whereis(busy_drv_server) of
undefined ->
@@ -58,8 +63,38 @@ end_per_testcase(_Case, Config) when is_list(Config) ->
ok
end
end,
+ kill_processes(),
Config.
+kill_processes() ->
+ killer_process ! {get_pids,self()},
+ receive
+ {pids_to_kill,Pids} -> ok
+ end,
+ _ = [begin
+ case erlang:is_process_alive(P) of
+ true ->
+ io:format("Killing ~p\n", [P]);
+ false ->
+ ok
+ end,
+ unlink(P),
+ exit(P, kill)
+ end || P <- Pids],
+ ok.
+
+killer_loop(Pids) ->
+ receive
+ {add_pid,Pid} ->
+ killer_loop([Pid|Pids]);
+ {get_pids,To} ->
+ To ! {pids_to_kill,Pids}
+ end.
+
+kill_me(Pid) ->
+ killer_process ! {add_pid,Pid},
+ Pid.
+
%% Tests I/O operations to a busy port, to make sure a suspended send
%% operation is correctly restarted. This used to crash Beam.
@@ -713,6 +748,7 @@ run_scenario([],Vars) ->
run_command(_M,spawn,{Args,Opts}) ->
Pid = spawn_opt(fun() -> apply(?MODULE,process_init,Args) end,[link|Opts]),
+ kill_me(Pid),
pal("spawn(~p): ~p",[Args,Pid]),
Pid;
run_command(M,spawn,Args) ->
@@ -808,7 +844,9 @@ fun_spawn(Fun) ->
fun_spawn(Fun, []).
fun_spawn(Fun, Args) ->
- spawn_link(erlang, apply, [Fun, Args]).
+ Pid = spawn_link(erlang, apply, [Fun, Args]),
+ kill_me(Pid),
+ Pid.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% These routines provide a port which will become busy when the