// NewDHT creates a new DHT object with the given peer as the 'local' host
func NewDHT(ctx context.Context, h host.Host, dstore ds.Datastore) *IpfsDHT {
dht := new(IpfsDHT)
dht.datastore = dstore
dht.self = h.ID()
dht.peerstore = h.Peerstore()
dht.host = h
// register for network notifs.
dht.host.Network().Notify((*netNotifiee)(dht))
dht.proc = goprocess.WithTeardown(func() error {
// remove ourselves from network notifs.
dht.host.Network().StopNotify((*netNotifiee)(dht))
return nil
})
dht.ctx = ctx
h.SetStreamHandler(ProtocolDHT, dht.handleNewStream)
dht.providers = NewProviderManager(dht.ctx, dht.self)
dht.proc.AddChild(dht.providers.proc)
goprocessctx.CloseAfterContext(dht.proc, ctx)
dht.routingTable = kb.NewRoutingTable(20, kb.ConvertPeerID(dht.self), time.Minute, dht.peerstore)
dht.birth = time.Now()
dht.Validator = make(record.Validator)
dht.Validator["pk"] = record.PublicKeyValidator
dht.Selector = make(record.Selector)
dht.Selector["pk"] = record.PublicKeySelector
return dht
}
// NewDiagnostics instantiates a new diagnostics service running on the given network
func NewDiagnostics(self peer.ID, h host.Host) *Diagnostics {
d := &Diagnostics{
host: h,
self: self,
birth: time.Now(),
diagMap: make(map[string]time.Time),
}
h.SetStreamHandler(ProtocolDiag, d.handleNewStream)
return d
}
// NewFromIpfsHost returns a BitSwapNetwork supported by underlying IPFS host
func NewFromIpfsHost(host host.Host, r routing.IpfsRouting) BitSwapNetwork {
bitswapNetwork := impl{
host: host,
routing: r,
}
host.SetStreamHandler(ProtocolBitswap, bitswapNetwork.handleNewStream)
host.Network().Notify((*netNotifiee)(&bitswapNetwork))
// TODO: StopNotify.
return &bitswapNetwork
}