godbus server example

server.go

package main

import (
	"fmt"
	"github.com/godbus/dbus"
	"github.com/godbus/dbus/introspect"
	"os"
	//"encoding/xml"

)

const (
	path_name = "/com/github/guelfey/Demo"
	iface_name = "com.github.guelfey.Demo"
)

type foo string

func (f foo) Foo() (string, *dbus.Error) {
	fmt.Println(f)
	return string(f), nil
}


func main() {
	conn, err := dbus.SessionBus()
	if err != nil {
		panic(err)
	}
	reply, err := conn.RequestName(iface_name,
		dbus.NameFlagDoNotQueue)
	if err != nil {
		panic(err)
	}
	if reply != dbus.RequestNameReplyPrimaryOwner {
		fmt.Fprintln(os.Stderr, "name already taken")
		os.Exit(1)
	}

	f := foo("NeedsExternalCalls")
	conn.Export(f, path_name, iface_name)
	
	node := &introspect.Node{}
	node.Name = iface_name
	iface := &introspect.Interface{}
	
	iface.Name = iface_name
	
	mts  := introspect.Methods(f)
	iface.Methods = mts
	
	node.Interfaces = append(node.Interfaces,*iface)

	dbus_xml_str := introspect.NewIntrospectable(node)

	fmt.Println(dbus_xml_str)

	conn.Export(dbus_xml_str  , path_name,
		"org.freedesktop.DBus.Introspectable")

	fmt.Println(fmt.Sprintf("Listening on %s / %s ...",iface_name,path_name))
	select {}
}