id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1366	ngx_epoll_notify override original handler	yuguang.hu.vnner.com@…		"static ngx_int_t
ngx_epoll_notify(ngx_event_handler_pt handler)
{
    static uint64_t inc = 1;

    notify_event.data = handler;
    ...
}

If two modules call ngx_notify(handler), the notify_event.data will be overwrite. 

Maybe the notify_event->data should be a pointer which point to a function pointer array? 

Now only ngx_thread_pool call ngx_notify, so I wondered if 3rd part modules (which have their own thread pool) can call it.

If ngx_notify do not want 3rd part modules call it, that is, only ngx_thread_pool can call it, maybe a better way is let ngx_epoll_notify do not has parameter and set the ngx_thread_pool_handler through ngx_epoll_init?

ps: My ngx version is 1.12, I check the latest code(1.13.x), the related code is same.
"	defect	closed	minor		nginx-core	1.12.x	wontfix	ngx_epoll_notify			"nginx version: nginx/1.12.1
built by gcc 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4)
configure arguments: --add-module=./third_part_module/echo --with-debug --with-cc-opt='-O0 -g' --prefix=./prefix"