implmented dbus server

src/go/tsgo/dbus.go

@@ -1,12 +1,59 @@
 package tsgo
 
-import "github.com/godbus/dbus"
+import (
+	"errors"
+
+	"github.com/godbus/dbus"
+	"github.com/godbus/dbus/introspect"
+)
 
 var dbusConn *dbus.Conn
 
-func initDbus() {
-	dbusConn, _ = dbus.ConnectSessionBus()
-	// Add error handling
+const intro = `
+<node>
+	<interface name="org.kapelle.ts3">
+		<method name="ToggleMute"></method>
+	</interface>` + introspect.IntrospectDataString + `
+</node> `
+
+type dbusHandler int
+
+func (d dbusHandler) ToggleMute() *dbus.Error {
+	Ts3Functions.PrintMessage(1, "toggle", PLUGIN_MESSAGE_TARGET_SERVER) // TODO placeholder
+	return nil
+}
+
+func initDbus() error {
+	var err error
+	dbusConn, err = dbus.ConnectSessionBus()
+
+	if err != nil {
+		return err
+	}
+
+	err = dbusConn.Export(introspect.Introspectable(intro), "/", "org.freedesktop.DBus.Introspectable")
+	if err != nil {
+		return err
+	}
+
+	err = dbusConn.Export(dbusHandler(1), "/", "org.kapelle.ts3")
+	if err != nil {
+		return err
+	}
+
+	reply, err2 := dbusConn.RequestName("org.kapelle.ts3", dbus.NameFlagDoNotQueue)
+	if err2 != nil {
+		return err2
+	}
+	if reply != dbus.RequestNameReplyPrimaryOwner {
+		return errors.New("name already taken")
+	}
+
+	return nil
+}
+
+func closeConn() {
+	dbusConn.Close()
 }
 
 func notifyPoke(from, message string) {

src/go/tsgo/tsgo.go

@@ -36,7 +36,7 @@ func Ts3pluginInit() int {
 
 //Ts3pluginShutdown shutdown plugin function
 func Ts3pluginShutdown() {
-
+	closeConn()
 }
 
 /*