From cb8a7d979d1a4b2a32317ee0a77815ec2ea38b9f Mon Sep 17 00:00:00 2001
From: obscuren <geffobscura@gmail.com>
Date: Sun, 2 Feb 2014 16:15:39 +0100
Subject: upnp test

---
 ethereum.go | 107 +++++++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 66 insertions(+), 41 deletions(-)

(limited to 'ethereum.go')

diff --git a/ethereum.go b/ethereum.go
index a7a2f6b8c..eab40e93d 100644
--- a/ethereum.go
+++ b/ethereum.go
@@ -9,6 +9,7 @@ import (
 	"log"
 	"net"
 	"strconv"
+	"sync"
 	"sync/atomic"
 	"time"
 )
@@ -45,9 +46,14 @@ type Ethereum struct {
 	Addr net.Addr
 
 	nat NAT
+
+	peerMut sync.Mutex
+
+	// Capabilities for outgoing peers
+	serverCaps Caps
 }
 
-func New() (*Ethereum, error) {
+func New(caps Caps) (*Ethereum, error) {
 	//db, err := ethdb.NewLDBDatabase()
 	db, err := ethdb.NewMemDatabase()
 	if err != nil {
@@ -56,12 +62,11 @@ func New() (*Ethereum, error) {
 
 	ethutil.Config.Db = db
 
-	/*
-		nat, err := Discover()
-		if err != nil {
-			log.Printf("Can'them discover upnp: %v", err)
-		}
-	*/
+	nat, err := Discover()
+	if err != nil {
+		log.Printf("Can't discover upnp: %v", err)
+	}
+	log.Println(nat)
 
 	nonce, _ := ethutil.RandomUint64()
 	ethereum := &Ethereum{
@@ -69,7 +74,8 @@ func New() (*Ethereum, error) {
 		db:           db,
 		peers:        list.New(),
 		Nonce:        nonce,
-		//nat:          nat,
+		serverCaps:   caps,
+		nat:          nat,
 	}
 	ethereum.TxPool = ethchain.NewTxPool()
 	ethereum.TxPool.Speaker = ethereum
@@ -85,13 +91,8 @@ func (s *Ethereum) AddPeer(conn net.Conn) {
 	peer := NewPeer(conn, s, true)
 
 	if peer != nil {
-		if s.peers.Len() > 25 {
-			log.Println("SEED")
-			peer.Start(true)
-		} else {
-			s.peers.PushBack(peer)
-			peer.Start(false)
-		}
+		s.peers.PushBack(peer)
+		peer.Start(false)
 	}
 }
 
@@ -122,7 +123,7 @@ func (s *Ethereum) ConnectToPeer(addr string) error {
 		return nil
 	}
 
-	peer := NewOutboundPeer(addr, s)
+	peer := NewOutboundPeer(addr, s, s.serverCaps)
 
 	s.peers.PushBack(peer)
 
@@ -158,12 +159,18 @@ func (s *Ethereum) InboundPeers() []*Peer {
 }
 
 func (s *Ethereum) InOutPeers() []*Peer {
+	// Reap the dead peers first
+	s.reapPeers()
+
 	// Create a new peer slice with at least the length of the total peers
 	inboundPeers := make([]*Peer, s.peers.Len())
 	length := 0
 	eachPeer(s.peers, func(p *Peer, e *list.Element) {
-		inboundPeers[length] = p
-		length++
+		// Only return peers with an actual ip
+		if len(p.host) > 0 {
+			inboundPeers[length] = p
+			length++
+		}
 	})
 
 	return inboundPeers[:length]
@@ -171,6 +178,10 @@ func (s *Ethereum) InOutPeers() []*Peer {
 
 func (s *Ethereum) Broadcast(msgType ethwire.MsgType, data []interface{}) {
 	msg := ethwire.NewMessage(msgType, data)
+	s.BroadcastMsg(msg)
+}
+
+func (s *Ethereum) BroadcastMsg(msg *ethwire.Msg) {
 	eachPeer(s.peers, func(p *Peer, e *list.Element) {
 		p.QueueMessage(msg)
 	})
@@ -180,15 +191,25 @@ func (s *Ethereum) Peers() *list.List {
 	return s.peers
 }
 
-func (s *Ethereum) ReapDeadPeers() {
-	for {
-		eachPeer(s.peers, func(p *Peer, e *list.Element) {
-			if atomic.LoadInt32(&p.disconnect) == 1 || (p.inbound && (time.Now().Unix()-p.lastPong) > int64(5*time.Minute)) {
-				s.peers.Remove(e)
-			}
-		})
+func (s *Ethereum) reapPeers() {
+	s.peerMut.Lock()
+	defer s.peerMut.Unlock()
+
+	eachPeer(s.peers, func(p *Peer, e *list.Element) {
+		if atomic.LoadInt32(&p.disconnect) == 1 || (p.inbound && (time.Now().Unix()-p.lastPong) > int64(5*time.Minute)) {
+			s.peers.Remove(e)
+		}
+	})
+}
 
-		time.Sleep(processReapingTimeout * time.Second)
+func (s *Ethereum) ReapDeadPeerHandler() {
+	reapTimer := time.NewTicker(processReapingTimeout * time.Second)
+
+	for {
+		select {
+		case <-reapTimer.C:
+			s.reapPeers()
+		}
 	}
 }
 
@@ -241,29 +262,33 @@ func (s *Ethereum) Start() {
 	} else {
 		s.Addr = ln.Addr()
 		// Starting accepting connections
-		go func() {
-			log.Println("Ready and accepting connections")
-
-			for {
-				conn, err := ln.Accept()
-				if err != nil {
-					log.Println(err)
-
-					continue
-				}
-
-				go s.AddPeer(conn)
-			}
-		}()
+		log.Println("Ready and accepting connections")
+		// Start the peer handler
+		go s.peerHandler(ln)
 	}
 
+	go s.upnpUpdateThread()
+
 	// Start the reaping processes
-	go s.ReapDeadPeers()
+	go s.ReapDeadPeerHandler()
 
 	// Start the tx pool
 	s.TxPool.Start()
 }
 
+func (s *Ethereum) peerHandler(listener net.Listener) {
+	for {
+		conn, err := listener.Accept()
+		if err != nil {
+			log.Println(err)
+
+			continue
+		}
+
+		go s.AddPeer(conn)
+	}
+}
+
 func (s *Ethereum) Stop() {
 	// Close the database
 	defer s.db.Close()
-- 
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