You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
163 lines
3.2 KiB
163 lines
3.2 KiB
package main
|
|
|
|
// TODO: ensure Mark* gets called.
|
|
|
|
import (
|
|
"os"
|
|
"os/signal"
|
|
|
|
"github.com/tendermint/tendermint/config"
|
|
"github.com/tendermint/tendermint/p2p"
|
|
)
|
|
|
|
type Node struct {
|
|
lz []p2p.Listener
|
|
sw *p2p.Switch
|
|
book *p2p.AddrBook
|
|
pmgr *p2p.PeerManager
|
|
}
|
|
|
|
func NewNode() *Node {
|
|
// Define channels for our app
|
|
chDescs := []p2p.ChannelDescriptor{
|
|
p2p.ChannelDescriptor{
|
|
Name: "PEX",
|
|
SendBufferSize: 2,
|
|
RecvBufferSize: 2,
|
|
},
|
|
p2p.ChannelDescriptor{
|
|
Name: "block",
|
|
SendBufferSize: 10,
|
|
RecvBufferSize: 10,
|
|
},
|
|
p2p.ChannelDescriptor{
|
|
Name: "mempool",
|
|
SendBufferSize: 100,
|
|
RecvBufferSize: 100,
|
|
},
|
|
p2p.ChannelDescriptor{
|
|
Name: "consensus",
|
|
SendBufferSize: 1000,
|
|
RecvBufferSize: 1000,
|
|
},
|
|
}
|
|
sw := p2p.NewSwitch(chDescs)
|
|
book := p2p.NewAddrBook(config.AppDir + "/addrbook.json")
|
|
pmgr := p2p.NewPeerManager(sw, book)
|
|
|
|
return &Node{
|
|
sw: sw,
|
|
book: book,
|
|
pmgr: pmgr,
|
|
}
|
|
}
|
|
|
|
func (n *Node) Start() {
|
|
log.Info("Starting node")
|
|
for _, l := range n.lz {
|
|
go n.inboundConnectionHandler(l)
|
|
}
|
|
n.sw.Start()
|
|
n.book.Start()
|
|
n.pmgr.Start()
|
|
}
|
|
|
|
// Add a Listener to accept inbound peer connections.
|
|
func (n *Node) AddListener(l p2p.Listener) {
|
|
log.Info("Added %v", l)
|
|
n.lz = append(n.lz, l)
|
|
}
|
|
|
|
func (n *Node) inboundConnectionHandler(l p2p.Listener) {
|
|
for {
|
|
inConn, ok := <-l.Connections()
|
|
if !ok {
|
|
break
|
|
}
|
|
// New inbound connection!
|
|
peer, err := n.sw.AddPeerWithConnection(inConn, false)
|
|
if err != nil {
|
|
log.Info("Ignoring error from inbound connection: %v\n%v",
|
|
peer, err)
|
|
continue
|
|
}
|
|
// NOTE: We don't yet have the external address of the
|
|
// remote (if they have a listener at all).
|
|
// PeerManager's pexHandler will handle that.
|
|
}
|
|
|
|
// cleanup
|
|
}
|
|
|
|
func (n *Node) SendOurExternalAddrs(peer *p2p.Peer) {
|
|
// Send listener our external address(es)
|
|
addrs := []*p2p.NetAddress{}
|
|
for _, l := range n.lz {
|
|
addrs = append(addrs, l.ExternalAddress())
|
|
}
|
|
msg := &p2p.PexAddrsMessage{Addrs: addrs}
|
|
peer.Send(p2p.NewPacket(p2p.PexCh, msg))
|
|
// On the remote end, the pexHandler may choose
|
|
// to add these to its book.
|
|
}
|
|
|
|
func (n *Node) newPeersHandler() {
|
|
for {
|
|
peer, ok := <-n.pmgr.NewPeers()
|
|
if !ok {
|
|
break
|
|
}
|
|
// New outbound peer!
|
|
n.SendOurExternalAddrs(peer)
|
|
}
|
|
}
|
|
|
|
func (n *Node) Stop() {
|
|
log.Info("Stopping node")
|
|
// TODO: gracefully disconnect from peers.
|
|
n.sw.Stop()
|
|
n.book.Stop()
|
|
n.pmgr.Stop()
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
func main() {
|
|
|
|
// Create & start node
|
|
n := NewNode()
|
|
l := p2p.NewDefaultListener("tcp", config.Config.LAddr)
|
|
n.AddListener(l)
|
|
n.Start()
|
|
|
|
// Seed?
|
|
if config.Config.Seed != "" {
|
|
peer, err := n.sw.DialPeerWithAddress(p2p.NewNetAddressString(config.Config.Seed))
|
|
if err != nil {
|
|
log.Error("Error dialing seed: %v", err)
|
|
//n.book.MarkAttempt(addr)
|
|
return
|
|
} else {
|
|
log.Info("Connected to seed: %v", peer)
|
|
n.SendOurExternalAddrs(peer)
|
|
}
|
|
}
|
|
|
|
// Sleep forever and then...
|
|
trapSignal(func() {
|
|
n.Stop()
|
|
})
|
|
}
|
|
|
|
func trapSignal(cb func()) {
|
|
c := make(chan os.Signal, 1)
|
|
signal.Notify(c, os.Interrupt)
|
|
go func() {
|
|
for sig := range c {
|
|
log.Info("captured %v, exiting..", sig)
|
|
cb()
|
|
os.Exit(1)
|
|
}
|
|
}()
|
|
select {}
|
|
}
|