In RBDPlugin.pm i found this part and i was wondering how it works.
my $parser = sub {
my $line = shift;
if ($line =~
m/^((vm|base)-(\d+)-disk-\d+)\s+(\d+)(M|G|T)\s((\S+)\/((vm|base)-\d+-\S+@\S+))?/)
{
my ($image, $owner, $size, $unit, $parent) = ($1, $3, $4,
$5, $8);
$list->{$pool}->{$image} = {
name => $image,
size => $size*rbd_unittobytes()->{$unit},
parent => $parent,
vmid => $owner
};
}
};
eval {
run_command($cmd, errmsg => "rbd error", errfunc => sub { },
outfunc => $parser);
};
my $err = $@;
====> under which circumstances does run_command die? errorcode != 0?
die $err if $err && $err !~ m/doesn't contain rbd images/ ;
Where does this content $@ comes from? errfunc does nothing...
Thanks!
Stefan
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