]>
git.proxmox.com Git - pve-guest-common.git/blob - PVE/GuestHelpers.pm
64e26c96652f260d2adc76412e9c21792af299e6
1 package PVE
::GuestHelpers
;
9 use POSIX
qw(strftime);
11 # We use a separate lock to block migration while a replication job
14 our $lockdir = '/var/lock/pve-manager';
16 sub guest_migration_lock
{
17 my ($vmid, $timeout, $func, @param) = @_;
19 my $lockid = "pve-migrate-$vmid";
23 my $res = PVE
::Tools
::lock_file
("$lockdir/$lockid", $timeout, $func, @param);
29 sub check_hookscript
{
30 my ($volid, $storecfg) = @_;
32 $storecfg = PVE
::Storage
::config
() if !defined($storecfg);
33 my ($path, undef, $type) = PVE
::Storage
::path
($storecfg, $volid);
35 die "'$volid' is not in the snippets directory\n"
36 if $type ne 'snippets';
38 die "script '$volid' does not exists\n"
41 die "script '$volid' is not executable\n"
48 my ($conf, $vmid, $phase, $stop_on_error) = @_;
50 return if !$conf->{hookscript
};
53 my $hookscript = check_hookscript
($conf->{hookscript
});
56 PVE
::Tools
::run_command
([$hookscript, $vmid, $phase]);
59 my $errmsg = "hookscript error for $vmid on $phase: $err\n";
60 die $errmsg if ($stop_on_error);
68 my $snapshots = { map { $_->{name
} => $_ } @$res };
71 foreach my $e (@$res) {
73 if (($parent = $e->{parent
}) && defined $snapshots->{$parent}) {
74 push @{$snapshots->{$parent}->{children
}}, $e->{name
};
76 push @roots, $e->{name
};
80 # sort the elements by snaptime - with "current" (no snaptime) highest
81 my $snaptimesort = sub {
82 return +1 if !defined $snapshots->{$a}->{snaptime
};
83 return -1 if !defined $snapshots->{$b}->{snaptime
};
84 return $snapshots->{$a}->{snaptime
} <=> $snapshots->{$b}->{snaptime
};
87 # recursion function for displaying the tree
90 my ($prefix, $root, $snapshots) = @_;
91 my $e = $snapshots->{$root};
93 my $description = $e->{description
} || 'no-description';
94 ($description) = $description =~ m/(.*)$/m;
97 if (defined $e->{snaptime
}) {
98 $timestring = strftime
("%F %H:%M:%S", localtime($e->{snaptime
}));
101 my $len = 30 - length($prefix); # for aligning the description
102 printf("%s %-${len}s %-23s %s\n", $prefix, $root, $timestring, $description);
104 if ($e->{children
}) {
105 $prefix = " $prefix";
106 foreach my $child (sort $snaptimesort @{$e->{children
}}) {
107 $snapshottree->($prefix, $child, $snapshots);
112 foreach my $root (sort $snaptimesort @roots) {
113 $snapshottree->('`->', $root, $snapshots);