X-Git-Url: https://git.proxmox.com/?p=pve-common.git;a=blobdiff_plain;f=src%2FPVE%2FSystemD.pm;fp=src%2FPVE%2FSystemD.pm;h=0000000000000000000000000000000000000000;hp=a5d92500294eb720e2c401963c6033d2aae50729;hb=eae436871c7f155295f58f32be69ac0f97020678;hpb=f024a872c45c4519617b87f772b046e1574f7306 diff --git a/src/PVE/SystemD.pm b/src/PVE/SystemD.pm deleted file mode 100644 index a5d9250..0000000 --- a/src/PVE/SystemD.pm +++ /dev/null @@ -1,81 +0,0 @@ -package PVE::SystemD; - -use strict; -use warnings; - -use Net::DBus qw(dbus_uint32 dbus_uint64); -use Net::DBus::Callback; -use Net::DBus::Reactor; - -# NOTE: This calls the dbus main loop and must not be used when another dbus -# main loop is being used as we need to wait for the JobRemoved signal. -# Polling the job status instead doesn't work because this doesn't give us the -# distinction between success and failure. -# -# Note that the description is mandatory for security reasons. -sub enter_systemd_scope { - my ($unit, $description, %extra) = @_; - die "missing description\n" if !defined($description); - - my $timeout = delete $extra{timeout}; - - $unit .= '.scope'; - my $properties = [ [PIDs => [dbus_uint32($$)]] ]; - - foreach my $key (keys %extra) { - if ($key eq 'Slice' || $key eq 'KillMode') { - push @{$properties}, [$key, $extra{$key}]; - } elsif ($key eq 'CPUShares') { - push @{$properties}, [$key, dbus_uint64($extra{$key})]; - } elsif ($key eq 'CPUQuota') { - push @{$properties}, ['CPUQuotaPerSecUSec', - dbus_uint64($extra{$key} * 10_000)]; - } else { - die "Don't know how to encode $key for systemd scope\n"; - } - } - - my $job; - my $done = 0; - - my $bus = Net::DBus->system(); - my $reactor = Net::DBus::Reactor->main(); - - my $service = $bus->get_service('org.freedesktop.systemd1'); - my $if = $service->get_object('/org/freedesktop/systemd1', 'org.freedesktop.systemd1.Manager'); - # Connect to the JobRemoved signal since we want to wait for it to finish - my $sigid; - my $timer; - my $cleanup = sub { - my ($no_shutdown) = @_; - $if->disconnect_from_signal('JobRemoved', $sigid) if defined($if); - $if = undef; - $sigid = undef; - $reactor->remove_timeout($timer) if defined($timer); - $timer = undef; - return if $no_shutdown; - $reactor->shutdown(); - }; - - $sigid = $if->connect_to_signal('JobRemoved', sub { - my ($id, $removed_job, $signaled_unit, $result) = @_; - return if $signaled_unit ne $unit || $removed_job ne $job; - $cleanup->(0); - die "systemd job failed\n" if $result ne 'done'; - $done = 1; - }); - - my $on_timeout = sub { - $cleanup->(0); - die "systemd job timed out\n"; - }; - - $timer = $reactor->add_timeout($timeout * 1000, Net::DBus::Callback->new(method => $on_timeout)) - if defined($timeout); - $job = $if->StartTransientUnit($unit, 'fail', $properties, []); - $reactor->run(); - $cleanup->(1); - die "systemd job never completed\n" if !$done; -} - -1;