func (m *systemdUnitManager) GetUnitStates(filter pkg.Set) (map[string]*unit.UnitState, error) {
// Unfortunately we need to lock for the entire operation to ensure we
// have a consistent view of the hashes. Otherwise, Load/Unload
// operations could mutate the hashes before we've retrieved the state
// for every unit in the filter, since they won't necessarily all be
// present in the initial ListUnits() call.
fallback := false
m.mutex.Lock()
defer m.mutex.Unlock()
dbusStatuses, err := m.systemd.ListUnitsByNames(filter.Values())
if err != nil {
fallback = true
log.Debugf("ListUnitsByNames is not implemented in your systemd version (requires at least systemd 230), fallback to ListUnits: %v", err)
dbusStatuses, err = m.systemd.ListUnits()
if err != nil {
return nil, err
}
}
states := make(map[string]*unit.UnitState)
for _, dus := range dbusStatuses {
if fallback && !filter.Contains(dus.Name) {
// If filter could not be applied on DBus side, we will filter unit files here
continue
}
us := &unit.UnitState{
LoadState: dus.LoadState,
ActiveState: dus.ActiveState,
SubState: dus.SubState,
}
if h, ok := m.hashes[dus.Name]; ok {
us.UnitHash = h.String()
}
states[dus.Name] = us
}
// grab data on subscribed units that didn't show up in ListUnits in fallback mode, most
// likely due to being inactive
if fallback {
for _, name := range filter.Values() {
if _, ok := states[name]; ok {
continue
}
us, err := m.getUnitState(name)
if err != nil {
return nil, err
}
if h, ok := m.hashes[name]; ok {
us.UnitHash = h.String()
}
states[name] = us
}
}
return states, nil
}
func (fum *FakeUnitManager) GetUnitStates(filter pkg.Set) (map[string]*UnitState, error) {
fum.RLock()
defer fum.RUnlock()
states := make(map[string]*UnitState)
for _, name := range filter.Values() {
if _, ok := fum.u[name]; ok {
states[name] = &UnitState{"loaded", "active", "running", "", "", name}
}
}
return states, nil
}
func (m *systemdUnitManager) GetUnitStates(filter pkg.Set) (map[string]*unit.UnitState, error) {
// Unfortunately we need to lock for the entire operation to ensure we
// have a consistent view of the hashes. Otherwise, Load/Unload
// operations could mutate the hashes before we've retrieved the state
// for every unit in the filter, since they won't necessarily all be
// present in the initial ListUnits() call.
m.mutex.Lock()
defer m.mutex.Unlock()
dbusStatuses, err := m.systemd.ListUnits()
if err != nil {
return nil, err
}
states := make(map[string]*unit.UnitState)
for _, dus := range dbusStatuses {
if !filter.Contains(dus.Name) {
continue
}
us := &unit.UnitState{
LoadState: dus.LoadState,
ActiveState: dus.ActiveState,
SubState: dus.SubState,
}
if h, ok := m.hashes[dus.Name]; ok {
us.UnitHash = h.String()
}
states[dus.Name] = us
}
// grab data on subscribed units that didn't show up in ListUnits, most
// likely due to being inactive
for _, name := range filter.Values() {
if _, ok := states[name]; ok {
continue
}
us, err := m.getUnitState(name)
if err != nil {
return nil, err
}
if h, ok := m.hashes[name]; ok {
us.UnitHash = h.String()
}
states[name] = us
}
return states, nil
}