$sockets = [];
        \socket_create_pair(AF_UNIX,SOCK_DGRAM,0,$sockets);
        $proc = new \Swoole\Process(function()use($sockets){
            socket_close($sockets[0]);
            $f = fopen(__FILE__,'r');
            var_dump($f);
            socket_sendmsg($sockets[1],[ 'control'=>[['level'=>SOL_SOCKET,'type'=>SCM_RIGHTS,'data'=>[$f]] ] ],0);
            sleep(10);
        },false,2,1);
        $proc->start();
        socket_close($sockets[1]);
        $data = [
            'controllen'=>socket_cmsg_space(SOL_SOCKET,SCM_RIGHTS,1)
        ];
        socket_recvmsg($sockets[0],$data,0);
        var_dump($data);
        sleep(10);