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.
139 lines
2.8 KiB
139 lines
2.8 KiB
package p2p
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"net"
|
|
"sync"
|
|
"sync/atomic"
|
|
|
|
"github.com/tendermint/tendermint/binary"
|
|
. "github.com/tendermint/tendermint/common"
|
|
"github.com/tendermint/tendermint/types"
|
|
)
|
|
|
|
type Peer struct {
|
|
outbound bool
|
|
mconn *MConnection
|
|
running uint32
|
|
|
|
*types.NodeInfo
|
|
Key string
|
|
Data *CMap // User data.
|
|
}
|
|
|
|
func peerHandshake(conn net.Conn, ourNodeInfo *types.NodeInfo) (*types.NodeInfo, error) {
|
|
var peerNodeInfo = new(types.NodeInfo)
|
|
var wg sync.WaitGroup
|
|
var err1 error
|
|
var err2 error
|
|
wg.Add(2)
|
|
go func() {
|
|
var n int64
|
|
binary.WriteBinary(ourNodeInfo, conn, &n, &err1)
|
|
wg.Done()
|
|
}()
|
|
go func() {
|
|
var n int64
|
|
binary.ReadBinary(peerNodeInfo, conn, &n, &err2)
|
|
log.Info("Peer handshake", "peerNodeInfo", peerNodeInfo)
|
|
wg.Done()
|
|
}()
|
|
wg.Wait()
|
|
if err1 != nil {
|
|
return nil, err1
|
|
}
|
|
if err2 != nil {
|
|
return nil, err2
|
|
}
|
|
return peerNodeInfo, nil
|
|
}
|
|
|
|
func newPeer(conn net.Conn, peerNodeInfo *types.NodeInfo, outbound bool, reactorsByCh map[byte]Reactor, chDescs []*ChannelDescriptor, onPeerError func(*Peer, interface{})) *Peer {
|
|
var p *Peer
|
|
onReceive := func(chId byte, msgBytes []byte) {
|
|
reactor := reactorsByCh[chId]
|
|
if reactor == nil {
|
|
panic(Fmt("Unknown channel %X", chId))
|
|
}
|
|
reactor.Receive(chId, p, msgBytes)
|
|
}
|
|
onError := func(r interface{}) {
|
|
p.stop()
|
|
onPeerError(p, r)
|
|
}
|
|
mconn := NewMConnection(conn, chDescs, onReceive, onError)
|
|
p = &Peer{
|
|
outbound: outbound,
|
|
mconn: mconn,
|
|
running: 0,
|
|
NodeInfo: peerNodeInfo,
|
|
Key: mconn.RemoteAddress.IP.String(),
|
|
Data: NewCMap(),
|
|
}
|
|
return p
|
|
}
|
|
|
|
func (p *Peer) start() {
|
|
if atomic.CompareAndSwapUint32(&p.running, 0, 1) {
|
|
log.Debug("Starting Peer", "peer", p)
|
|
p.mconn.Start()
|
|
}
|
|
}
|
|
|
|
func (p *Peer) stop() {
|
|
if atomic.CompareAndSwapUint32(&p.running, 1, 0) {
|
|
log.Debug("Stopping Peer", "peer", p)
|
|
p.mconn.Stop()
|
|
}
|
|
}
|
|
|
|
func (p *Peer) IsRunning() bool {
|
|
return atomic.LoadUint32(&p.running) == 1
|
|
}
|
|
|
|
func (p *Peer) Connection() *MConnection {
|
|
return p.mconn
|
|
}
|
|
|
|
func (p *Peer) IsOutbound() bool {
|
|
return p.outbound
|
|
}
|
|
|
|
func (p *Peer) Send(chId byte, msg interface{}) bool {
|
|
if atomic.LoadUint32(&p.running) == 0 {
|
|
return false
|
|
}
|
|
return p.mconn.Send(chId, msg)
|
|
}
|
|
|
|
func (p *Peer) TrySend(chId byte, msg interface{}) bool {
|
|
if atomic.LoadUint32(&p.running) == 0 {
|
|
return false
|
|
}
|
|
return p.mconn.TrySend(chId, msg)
|
|
}
|
|
|
|
func (p *Peer) CanSend(chId byte) bool {
|
|
if atomic.LoadUint32(&p.running) == 0 {
|
|
return false
|
|
}
|
|
return p.mconn.CanSend(chId)
|
|
}
|
|
|
|
func (p *Peer) WriteTo(w io.Writer) (n int64, err error) {
|
|
binary.WriteString(p.Key, w, &n, &err)
|
|
return
|
|
}
|
|
|
|
func (p *Peer) String() string {
|
|
if p.outbound {
|
|
return fmt.Sprintf("Peer{->%v}", p.mconn)
|
|
} else {
|
|
return fmt.Sprintf("Peer{%v->}", p.mconn)
|
|
}
|
|
}
|
|
|
|
func (p *Peer) Equals(other *Peer) bool {
|
|
return p.Key == other.Key
|
|
}
|