func server(c *cli.Context) {
println("CIRCUIT 2014 gocircuit.org")
var err error
if c.Bool("docker") {
cmd, err := docker.Init()
if err != nil {
log.Fatalf("cannot use docker: %v", err)
}
log.Printf("Enabling docker elements, using %s", cmd)
}
// parse arguments
var tcpaddr = parseAddr(c) // server bind address
var join n.Addr // join address of another circuit server
if c.IsSet("join") {
if join, err = n.ParseAddr(c.String("join")); err != nil {
log.Fatalf("join address does not parse (%s)", err)
}
}
var multicast = parseDiscover(c)
// server instance working directory
var varDir string
if !c.IsSet("var") {
varDir = path.Join(os.TempDir(), fmt.Sprintf("%s-%%W-P%04d", n.Scheme, os.Getpid()))
} else {
varDir = c.String("var")
}
// start circuit runtime
addr := load(tcpaddr, varDir, readkey(c))
// tissue + locus
kin, xkin, rip := tissue.NewKin()
xlocus := locus.NewLocus(kin, rip)
// joining
switch {
case join != nil:
kin.ReJoin(join)
case multicast != nil:
log.Printf("Using UDP multicast discovery on address %s", multicast.String())
go assemble.NewAssembler(addr, multicast).AssembleServer(
func(joinAddr n.Addr) {
kin.ReJoin(joinAddr)
},
)
default:
log.Println("Singleton server.")
}
circuit.Listen(tissue.ServiceName, xkin)
circuit.Listen(LocusName, xlocus)
<-(chan int)(nil)
}
func DialDiscover(multicast string, authkey []byte) *Client {
mcast, err := net.ResolveUDPAddr("udp", multicast)
if err != nil {
panic(err)
}
_once.Do(func() {
_init(authkey)
})
c := &Client{}
dialback := assemble.NewAssembler(circuit.ServerAddr(), mcast).AssembleClient()
c.y = locus.YLocus{circuit.Dial(dialback, "locus")}
return c
}