示例#1
0
// 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
}
示例#2
0
// Introspection returns the introspection data that represents the properties
// of iface.
func (p *Properties) Introspection(iface string) []introspect.Property {
	p.mut.RLock()
	defer p.mut.RUnlock()
	m := p.m[iface]
	s := make([]introspect.Property, 0, len(m))
	for k, v := range m {
		p := introspect.Property{Name: k, Type: dbus.SignatureOf(v.Value).String()}
		if v.Writable {
			p.Access = "readwrite"
		} else {
			p.Access = "read"
		}
		s = append(s, p)
	}
	return s
}