我正在使用Sys :: Virt CPAN模块与我的kvm虚拟机管理程序“交谈”并管理域名。除了virsh控制台之外,我几乎可以使用bash virsh命令可以执行的所有操作,其中(谁会猜到它)打开域的文本控制台。但无论我对sys :: virt做什么,我只是得到一个闪烁的光标,没有任何反应。我也无法在整个网络上找到一个例子......所以我想我会问你我错过了什么。这是我到目前为止的代码 - 以及我测试的内容:
use 5.010;
use warnings;
use Sys::Virt;
use Sys::Virt::Stream;
my $data;
my $url = "someurl";
my $con = Sys::Virt->new('uri' => "qemu+tls://$url/system");
my $dom = $con->get_domain_by_name("name");
#Until here everything is just like in every other function i wrote.
my $st = $con->new_stream();
$dom->open_console($st, undef);
#I guess that i'm also fine until here - because there are no errors..
#And now i'm trying to do something with this stream object i made...
#If i would type virsh console i would get a promt to log in, so i try to fetch this promt.
#Here are two examples of how i was trying to get it:
#Result of this block: Blinking cursor - no "test"
my $rv = $st->recv($data, "1");
say "test";
say $rv;
say $data;
#Result of this block: Blinking cursor - no "test"
$st->recv_all(sub{
my ($st, $data, $nbytes) = @_;
});
say "test";
say $st;
say $data;
say $nbytes;
$st->finish();
我错过了什么 - 或者做错了什么?有什么想法吗?
答案 0 :(得分:0)
好吧,我终于发现了我做错了什么,我只是使用了默认流。正确定义流后,我可以发送和接收文本。
my $st=$con->new_stream(Sys::Virt::Stream::NONBLOCK);
$dom->open_console($st, undef, 0);
当一个流被正确定义并且程序不只是采用默认值 - 显然不起作用 - 一切正常 - 非常慢但很好。
以防有人遇到同样的问题。