// Set implements org.freedesktop.Properties.Set.
func (p *Properties) Set(iface, property string, newv dbus.Variant) *dbus.Error {
p.mut.Lock()
defer p.mut.Unlock()
m, ok := p.m[iface]
if !ok {
return ErrIfaceNotFound
}
prop, ok := m[property]
if !ok {
return ErrPropNotFound
}
if !prop.Writable {
return ErrReadOnly
}
if newv.Signature() != dbus.SignatureOf(prop.Value) {
return ErrInvalidArg
}
if prop.Callback != nil {
err := prop.Callback(&Change{p, iface, property, newv.Value()})
if err != nil {
return err
}
}
p.set(iface, property, newv.Value())
return nil
}
