// Searches for new syncgroups being advertised, sends found syncgroups to sgChan
func ScanForSG(ctx *context.T, quit chan bool, u *uistate.UIState) {
mdns, err := mdns.New("")
if err != nil {
ctx.Fatalf("Plugin failed: %v", err)
}
ds := ldiscovery.NewWithPlugins([]ldiscovery.Plugin{mdns})
fmt.Printf("Start scanning...\n")
ch, err := ds.Scan(ctx, fmt.Sprintf("v.InterfaceName = \"%s\"", util.CroupierInterface))
if err != nil {
ctx.Fatalf("Scan failed: %v", err)
}
instances := make(map[string]string)
loop:
for {
select {
case update := <-ch:
GetSG(instances, update, u)
view.LoadDiscoveryView(u)
case <-signals.ShutdownOnSignals(ctx):
break loop
case <-quit:
break loop
}
}
}
func serve(ctx *context.T, env *cmdline.Env, args []string) error {
name := ""
if len(args) > 0 {
name = args[0]
fmt.Printf("mounting under: %s\n", name)
}
_, server, err := v23.WithNewServer(ctx, name, defaultMediaServer(), security.AllowEveryone())
if err != nil {
return err
}
fmt.Printf("Listening at: %s", server.Status().Endpoints[0].Name())
<-signals.ShutdownOnSignals(ctx)
return nil
}
func runLockD(ctx *context.T, env *cmdline.Env, args []string) error {
if len(configDir) == 0 {
return errors.New("--config-dir must be specified")
}
if finfo, err := os.Stat(configDir); os.IsNotExist(err) {
if err := os.MkdirAll(configDir, os.FileMode(0700)); err != nil {
return fmt.Errorf("could not create configuration directory %v: %v", configDir, err)
}
} else if err != nil || !finfo.IsDir() {
return fmt.Errorf("--config-dir=%v is not a directory", configDir)
}
shutdown, err := startServer(ctx, configDir)
if err != nil {
return fmt.Errorf("failed to start server: %v", err)
}
<-signals.ShutdownOnSignals(ctx)
shutdown()
return nil
}
// Advertises a set of game log and game settings syncgroups
func Advertise(logAddress, settingsAddress, gameStartData string, quit chan bool, ctx *context.T) {
ctx, stop := context.WithCancel(ctx)
mdns, err := mdns.New("")
if err != nil {
ctx.Fatalf("mDNS failed: %v", err)
}
discoveryService := ldiscovery.NewWithPlugins([]ldiscovery.Plugin{mdns})
gameService := discovery.Service{
InstanceName: "A sample game service",
InterfaceName: util.CroupierInterface,
Attrs: map[string]string{"settings_sgname": settingsAddress, "game_start_data": gameStartData},
Addrs: []string{logAddress},
}
if _, err := discoveryService.Advertise(ctx, &gameService, nil); err != nil {
ctx.Fatalf("Advertise failed: %v", err)
}
select {
case <-signals.ShutdownOnSignals(ctx):
stop()
case <-quit:
stop()
}
}
func main() {
ctx, shutdown := v23.Init()
defer shutdown()
// Run server
if *to == "" {
// We are not the caller, so make the RPC available for the
// caller to call in on.
bsrv := ifc.BridgeServer(makeImpl())
_, server, err := v23.WithNewServer(ctx, *serviceName, bsrv,
security.DefaultAuthorizer())
if err != nil {
ctx.Error("Error serving service: ", err)
return
}
endpoint := server.Status().Endpoints[0]
fmt.Printf("Listening at: %v\n", endpoint)
// Wait forever.
<-signals.ShutdownOnSignals(ctx)
} else if *to != "" && *from != "" {
// pipe mode
ifct := ifcTopics(*topics)
tmout := options.ChannelTimeout(*timeout)
leftc := ifc.BridgeClient(*to)
rightc := ifc.BridgeClient(*from)
leftcc, err := leftc.Link(ctx, ifct, tmout)
if err != nil {
ctx.Error(err)
return
}
rightcc, err := rightc.Link(ctx, ifct, tmout)
if err != nil {
ctx.Error(err)
return
}
errCh := make(chan error, 2)
wg := &sync.WaitGroup{}
wg.Add(2)
go linkToLink(leftcc.RecvStream(), rightcc.SendStream(), errCh, wg)
go linkToLink(rightcc.RecvStream(), leftcc.SendStream(), errCh, wg)
wg.Wait()
select {
case err := <-errCh:
log.Print("pipe error: ", err)
default:
// don't block on channel read
}
} else {
cc, mu, err := mqttConnect()
if err != nil {
ctx.Error("mqtt connect: ", err)
return
}
bc := ifc.BridgeClient(*to)
ifct := ifcTopics(*topics)
bcc, err := bc.Link(ctx, ifct, options.ChannelTimeout(*timeout))
if err != nil {
ctx.Error(err)
return
}
done := make(chan error, 2)
go func() {
done <- transmitter(ifct, bcc.SendStream(), cc, mu)
println("send done")
}()
go func() {
done <- receiver(bcc.RecvStream(), cc, mu)
println("recv done")
}()
err = <-done
log.Print("Stopped with error ", err)
// Stop sender by closing cc.Incoming
cc.Disconnect()
}
}