// NewSystemdConnection establishes a private, direct connection to systemd.
// This can be used for communicating with systemd without a dbus daemon.
// Callers should call Close() when done with the connection.
func NewSystemdConnection() (*Conn, error) {
return newConnection(func() (*dbus.Conn, error) {
// We skip Hello when talking directly to systemd.
return dbusAuthConnection(func() (*dbus.Conn, error) {
return dbus.Dial("unix:path=/run/systemd/private")
})
})
}
func ConnectToDBus(bus string) (*DBusClient, error) {
c := new(DBusClient)
var err error
switch bus {
case "session":
c.bus, err = dbus.SessionBus()
case "system":
c.bus, err = dbus.SystemBus()
default:
c.bus, err = dbus.Dial(bus)
}
if err != nil {
return nil, err
}
if !c.bus.SupportsUnixFDs() {
return nil, errors.New("DBus connection does not support file descriptors")
}
c.path = dbus.ObjectPath("/com/firelizzard/teasvc/Client")
err = c.bus.Export(c, c.path, "com.firelizzard.teasvc.Client")
if err != nil {
return nil, err
}
c.sigchans = make(map[string](chan *dbus.Signal))
chsig := make(chan *dbus.Signal, 10)
go func() {
for {
sig := <-chsig
ch, ok := c.sigchans[sig.Name]
if !ok {
log.Print("Unhandled signal: " + sig.Name)
}
select {
case ch <- sig:
// sent singal, done
default:
log.Print("Unhandled signal (full channel): " + sig.Name)
}
}
}()
c.bus.Signal(chsig)
c.bus.BusObject().Call("org.freedesktop.DBus.AddMatch", 0, "type='signal',interface='com.firelizzard.teasvc',member='Pong'")
return c, nil
}
func ExportToDBus(proc *Process, bus string) (*DBusServer, error) {
s := new(DBusServer)
s.proc = proc
var err error
switch bus {
case "session":
s.bus, err = dbus.SessionBus()
case "system":
s.bus, err = dbus.SystemBus()
default:
s.bus, err = dbus.Dial(bus)
}
if err != nil {
return nil, err
}
if !s.bus.SupportsUnixFDs() {
return nil, errors.New("DBus connection does not support file descriptors")
}
s.path = dbus.ObjectPath("/com/firelizzard/teasvc/Server")
go s.handleSignals()
err = s.bus.Export(s, s.path, "com.firelizzard.teasvc.Server")
if err != nil {
return nil, err
}
c := s.bus.BusObject().Call("org.freedesktop.DBus.AddMatch", 0, "type='signal',interface='com.firelizzard.teasvc',member='Ping'")
if c.Err != nil {
return nil, c.Err
}
return s, nil
}