我有一个table
进程,pid
为board
创建一个go()
作为其kills_board_test() ->
{ok, Table} = table:go(),
{BoardPid, _ ,_ } = s:s(Table, info),
gen_server:stop(Table),
undefined = process_info(BoardPid).
状态的一部分。
我正在测试终止表还终止了主板。但董事会没有按预期停止。
我的测试:
table.erl
在handle_call(stop, _From, State = {Board, _, _}) ->
gen_server:stop(Board),
{stop, normal, shutdown_ok, State};
我实施:
> 6>table_test:test(). table_test: kills_board_test (module
> 'table_test')...*failed* in function table_test:kills_board_test/0
> (table_test.erl, line 8)
> **error:{badmatch,[{current_function,{gen_server,loop,6}},
> {initial_call,{proc_lib,init_p,5}},
> {status,waiting},
> {message_queue_len,0},
> {messages,[]},
> {links,[]},
> {dictionary,[{'$initial_call',{board,init,1}},
> {'$ancestors',[<0.351.0>,<0.349.0>]}]},
> {trap_exit,false},
> {error_handler,error_handler},
> {priority,normal},
> {group_leader,<0.350.0>},
> {total_heap_size,233},
> {heap_size,233},
> {stack_size,9},
> {reductions,152},
> {garbage_collection,...},
> {...}]} output:<<"Table Terminating.{<0.352.0>,
> #{current_player => x,result => playing},
> #{o => {<0.355.0>,<0.356.0>},x => {<0.353.0>,<0.354.0>}}} ">>
>
> ======================================================= Failed: 1. Skipped: 0. Passed: 0. error
我的结果是:
S
编辑:
我看到文本“终止”,但我知道停止会在返回之前等待终止完成。
答案 0 :(得分:1)
您的自定义停止行为位于handle_call(stop, ...)
,但您正在调用gen_server:stop/1
,但不会调用该代码。您可能打算改为gen_server:call(Table, stop)
。
也就是说,您可能希望将此停止行为移至Module:terminate/2
,gen_server:stop
自动调用 (除非您有理由在handle_call
):
terminate(_Reason, _State = {Board, _, _}) ->
gen_server:stop(Board)
现在,gen_server:stop(Table)
将调用此回调并自动停止Board
。