Hi, Marc Lehmann.
First.
1. I create object AnyEvent::DNS:
my $resolver = AnyEvent::DNS->new()
2. Resolve some hosts.
2. Fetch some urls asynchronously if it's host has been resolved.
3. remove AnyEvent::DNS object:
undef $resolver;
4. I create new object AnyEvent::DNS. Resolve some host. And get
problem: some old watchers rise and run old callback function in new
environment.
Old watchers wasn't removed after "undef $resolver;" and continue
working. Why? Timeout dosn't work correctly in AnyEvent::DNS I think.
It dosn't remove watchers.
#! /usr/bin/perl
use strict;
use warnings;
use AnyEvent::DNS;
my $resolver = AnyEvent::DNS->new(timeout => [2], server =>
[AnyEvent::Socket::parse_address('127.0.0.201')]);
my $cv = AnyEvent->condvar();
my $resolve_sub = sub {
warn "mindmix.ru resolved\n";
};
$resolver->resolve('mindmix.ru', 'a', accept => ["a"], $resolve_sub);
my $timer = AnyEvent->timer(
after => 1,
cb => sub {
warn "timeout for mindmix.ru\n";
$cv->send();
}
);
$cv->recv();
undef $timer;
undef $resolver; # here all watchers have to remove
undef $resolve_sub;
undef $cv;
$resolver = AnyEvent::DNS->new(timeout => [2], server =>
[AnyEvent::Socket::parse_address('127.0.0.201')]);
$cv = AnyEvent->condvar();
my $resolve_sub2 = sub {
warn "beon.ru resolved\n";
};
$resolver->resolve('google.com', 'a', accept => ["a"], $resolve_sub2);
$timer = AnyEvent->timer(
after => 3,
cb => sub {
warn "timeout for beon.ru\n";
$cv->send();
}
);
$cv->recv();
timeout for mindmix.ru
mindmix.ru resolved
beon.ru resolved
timeout for beon.ru
Why "mindmix.ru resolved" appear after "undef $resolver;" ?
Second.
Also some memory leaks found. Just add
use Devel::Leak::Object qw(GLOBAL_bless);
and run script:
Tracked objects by class:
AnyEvent::DNS 1
Config 1
Errno 1
--
Michael
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