forked from muka/go-bluetooth
/
service_expose.go
88 lines (73 loc) · 1.75 KB
/
service_expose.go
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package api
import (
"github.com/godbus/dbus/v5"
"github.com/godbus/dbus/v5/introspect"
"github.com/godbus/dbus/v5/prop"
"github.com/muka/go-bluetooth/bluez"
log "github.com/sirupsen/logrus"
)
type ExposedDBusService interface {
Path() dbus.ObjectPath
Interface() string
GetProperties() bluez.Properties
// App() *App
DBusProperties() *DBusProperties
DBusObjectManager() *DBusObjectManager
DBusConn() *dbus.Conn
// ExportTree() error
}
func RemoveDBusService(s ExposedDBusService) error {
err := s.DBusObjectManager().RemoveObject(s.Path())
if err != nil {
return err
}
return nil
}
// Expose
// - Interface() (Service, Char or Descr)
// - Properties interface
func ExposeDBusService(s ExposedDBusService) (err error) {
conn := s.DBusConn()
if conn == nil {
conn, err = dbus.SystemBus()
if err != nil {
return err
}
}
log.Tracef("Expose %s (%s)", s.Path(), s.Interface())
err = conn.Export(s, s.Path(), s.Interface())
if err != nil {
return err
}
err = s.DBusProperties().AddProperties(s.Interface(), s.GetProperties())
if err != nil {
return err
}
log.Tracef("Expose Properties interface (%s)", s.Path())
s.DBusProperties().Expose(s.Path())
node := &introspect.Node{
Interfaces: []introspect.Interface{
//Introspect
introspect.IntrospectData,
//Properties
prop.IntrospectData,
// Exposed service introspectable
{
Name: s.Interface(),
Methods: introspect.Methods(s),
Properties: s.DBusProperties().Introspection(s.Interface()),
},
},
}
err = conn.Export(
introspect.NewIntrospectable(node),
s.Path(),
"org.freedesktop.DBus.Introspectable",
)
if err != nil {
return err
}
// v, _ := intrsp.Introspect()
// fmt.Println("service_expose introspection", v)
return nil
}