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@ -13,14 +13,14 @@ import ( |
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// SendMessage is to connect a socket given a port and send the given message.
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// TODO(minhdoan, rj): need to check if a peer is reachable or not.
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func SendMessage(host Host, p p2p.Peer, message []byte) { |
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func SendMessage(host Host, p p2p.Peer, message []byte, lostPeer chan p2p.Peer) { |
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// Construct normal p2p message
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content := ConstructP2pMessage(byte(0), message) |
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go send(host, p, content) |
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go send(host, p, content, lostPeer) |
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} |
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// BroadcastMessage sends the message to a list of peers
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func BroadcastMessage(h Host, peers []p2p.Peer, msg []byte) { |
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func BroadcastMessage(h Host, peers []p2p.Peer, msg []byte, lostPeer chan p2p.Peer) { |
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if len(peers) == 0 { |
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return |
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} |
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@ -32,7 +32,7 @@ func BroadcastMessage(h Host, peers []p2p.Peer, msg []byte) { |
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start := time.Now() |
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for _, peer := range peers { |
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peerCopy := peer |
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go send(h, peerCopy, content) |
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go send(h, peerCopy, content, lostPeer) |
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} |
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log.Info("Broadcasting Done", "time spent(s)", time.Since(start).Seconds()) |
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@ -43,6 +43,13 @@ func BroadcastMessage(h Host, peers []p2p.Peer, msg []byte) { |
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} |
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} |
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// BroadcastMessageFromLeader sends the message to a list of peers from a leader.
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func BroadcastMessageFromLeader(h Host, peers []p2p.Peer, msg []byte, lostPeer chan p2p.Peer) { |
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// TODO(minhdoan): Enable back for multicast.
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peers = SelectMyPeers(peers, 1, MaxBroadCast) |
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BroadcastMessage(h, peers, msg, lostPeer) |
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} |
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// ConstructP2pMessage constructs the p2p message as [messageType, contentSize, content]
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func ConstructP2pMessage(msgType byte, content []byte) []byte { |
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@ -58,19 +65,10 @@ func ConstructP2pMessage(msgType byte, content []byte) []byte { |
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return byteBuffer.Bytes() |
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} |
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// BroadcastMessageFromLeader sends the message to a list of peers from a leader.
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func BroadcastMessageFromLeader(h Host, peers []p2p.Peer, msg []byte) { |
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// TODO(minhdoan): Enable back for multicast.
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peers = SelectMyPeers(peers, 1, MaxBroadCast) |
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BroadcastMessage(h, peers, msg) |
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log.Info("Done sending from leader") |
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} |
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// BroadcastMessageFromValidator sends the message to a list of peers from a validator.
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func BroadcastMessageFromValidator(h Host, selfPeer p2p.Peer, peers []p2p.Peer, msg []byte) { |
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peers = SelectMyPeers(peers, selfPeer.ValidatorID*MaxBroadCast+1, (selfPeer.ValidatorID+1)*MaxBroadCast) |
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BroadcastMessage(h, peers, msg) |
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log.Info("Done sending from validator") |
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BroadcastMessage(h, peers, msg, nil) |
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} |
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// MaxBroadCast is the maximum number of neighbors to broadcast
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@ -89,14 +87,14 @@ func SelectMyPeers(peers []p2p.Peer, min int, max int) []p2p.Peer { |
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} |
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// Send a message to another node with given port.
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func send(h Host, peer p2p.Peer, message []byte) { |
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func send(h Host, peer p2p.Peer, message []byte, lostPeer chan p2p.Peer) { |
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// Add attack code here.
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//attack.GetInstance().Run()
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backoff := p2p.NewExpBackoff(250*time.Millisecond, 10*time.Second, 2) |
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backoff := p2p.NewExpBackoff(150*time.Millisecond, 5*time.Second, 2) |
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for trial := 0; trial < 10; trial++ { |
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var err error |
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h.SendMessage(peer, message) |
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err = h.SendMessage(peer, message) |
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if err == nil { |
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if trial > 0 { |
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log.Warn("retry send", "rety", trial) |
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@ -108,6 +106,11 @@ func send(h Host, peer p2p.Peer, message []byte) { |
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backoff.Sleep() |
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} |
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log.Error("gave up sending a message", "addr", net.JoinHostPort(peer.IP, peer.Port)) |
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if lostPeer != nil { |
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// Notify lostPeer channel
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lostPeer <- peer |
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} |
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} |
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// DialWithSocketClient joins host port and establishes connection
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ak
6 years ago