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Neighbour is now peer. Neighbourhood is Peers. Small refactor.

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This commit is contained in:
Milos Gajdos
2019-09-10 01:14:23 +01:00
parent f91d0408ab
commit 195c6a8c90
7 changed files with 385 additions and 394 deletions
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152
network/default.go
View File

@@ -1,7 +1,6 @@
package network package network
import ( import (
"container/list"
"errors" "errors"
"sync" "sync"
"time" "time"
@@ -109,7 +108,7 @@ func newNetwork(opts ...Option) Network {
node: &node{ node: &node{
id: options.Id, id: options.Id,
address: options.Address, address: options.Address,
neighbours: make(map[string]*node), peers: make(map[string]*node),
}, },
options: options, options: options,
Router: options.Router, Router: options.Router,
@@ -261,70 +260,69 @@ func (n *network) processNetChan(client transport.Client, listener tunnel.Listen
n.Lock() n.Lock()
log.Debugf("Network received connect message from: %s", pbNetConnect.Node.Id) log.Debugf("Network received connect message from: %s", pbNetConnect.Node.Id)
// if the entry already exists skip adding it // if the entry already exists skip adding it
if neighbour, ok := n.neighbours[pbNetConnect.Node.Id]; ok { if peer, ok := n.peers[pbNetConnect.Node.Id]; ok {
// update lastSeen timestamp // update lastSeen timestamp
if n.neighbours[pbNetConnect.Node.Id].lastSeen.Before(now) { if n.peers[pbNetConnect.Node.Id].lastSeen.Before(now) {
neighbour.lastSeen = now peer.lastSeen = now
} }
n.Unlock() n.Unlock()
continue continue
} }
// add a new neighbour // add a new peer to the node peers
// NOTE: new node does not have any neighbours // NOTE: new node does not have any peers, yet
n.neighbours[pbNetConnect.Node.Id] = &node{ n.peers[pbNetConnect.Node.Id] = &node{
id: pbNetConnect.Node.Id, id: pbNetConnect.Node.Id,
address: pbNetConnect.Node.Address, address: pbNetConnect.Node.Address,
neighbours: make(map[string]*node), peers: make(map[string]*node),
lastSeen: now, lastSeen: now,
} }
n.Unlock() n.Unlock()
// advertise yourself to the network // advertise yourself to the network
if err := n.sendMsg("neighbour", NetworkChannel); err != nil { if err := n.sendMsg("peer", NetworkChannel); err != nil {
log.Debugf("Network failed to advertise neighbours: %v", err) log.Debugf("Network failed to advertise peers: %v", err)
} }
// advertise all the routes when a new node has connected // advertise all the routes when a new node has connected
if err := n.Router.Solicit(); err != nil { if err := n.Router.Solicit(); err != nil {
log.Debugf("Network failed to solicit routes: %s", err) log.Debugf("Network failed to solicit routes: %s", err)
} }
case "neighbour": case "peer":
// mark the time the message has been received // mark the time the message has been received
now := time.Now() now := time.Now()
pbNetNeighbour := &pbNet.Neighbour{} pbNetPeer := &pbNet.Peer{}
if err := proto.Unmarshal(m.Body, pbNetNeighbour); err != nil { if err := proto.Unmarshal(m.Body, pbNetPeer); err != nil {
log.Debugf("Network tunnel [%s] neighbour unmarshal error: %v", NetworkChannel, err) log.Debugf("Network tunnel [%s] peer unmarshal error: %v", NetworkChannel, err)
continue continue
} }
// don't process your own messages // don't process your own messages
if pbNetNeighbour.Node.Id == n.options.Id { if pbNetPeer.Node.Id == n.options.Id {
continue continue
} }
n.Lock() n.Lock()
log.Debugf("Network received neighbour message from: %s", pbNetNeighbour.Node.Id) log.Debugf("Network received peer message from: %s", pbNetPeer.Node.Id)
// only add the neighbour if it is NOT already in node's list of neighbours // only add the peer if it is NOT already in node's list of peers
_, exists := n.neighbours[pbNetNeighbour.Node.Id] _, exists := n.peers[pbNetPeer.Node.Id]
if !exists { if !exists {
n.neighbours[pbNetNeighbour.Node.Id] = &node{ n.peers[pbNetPeer.Node.Id] = &node{
id: pbNetNeighbour.Node.Id, id: pbNetPeer.Node.Id,
address: pbNetNeighbour.Node.Address, address: pbNetPeer.Node.Address,
neighbours: make(map[string]*node), peers: make(map[string]*node),
lastSeen: now, lastSeen: now,
} }
n.Unlock() n.Unlock()
// send a solicit message when discovering new neighbour // send a solicit message when discovering new peer
// NOTE: we need to release the Lock here as sendMsg locsk, too // NOTE: we need to release the Lock here as sendMsg locsk, too
if err := n.sendMsg("solicit", ControlChannel); err != nil { if err := n.sendMsg("solicit", ControlChannel); err != nil {
log.Debugf("Network failed to send solicit message: %s", err) log.Debugf("Network failed to send solicit message: %s", err)
} }
continue continue
} }
// update/store the node neighbour neighbours up to (MaxDepth-1) topology depth
// NOTE: we don't update max topology depth as we dont include this network node // NOTE: we don't update max topology depth as we dont include this network node
if err := n.node.updateNeighbour(pbNetNeighbour, MaxDepth-1); err != nil { if err := n.node.updatePeerTopology(pbNetPeer, MaxDepth-1); err != nil {
log.Debugf("Network failed to update neighbours") log.Debugf("Network failed to update peers")
} }
// update lastSeen timestamp if outdated // update lastSeen timestamp if outdated
if n.neighbours[pbNetNeighbour.Node.Id].lastSeen.Before(now) { if n.peers[pbNetPeer.Node.Id].lastSeen.Before(now) {
n.neighbours[pbNetNeighbour.Node.Id].lastSeen = now n.peers[pbNetPeer.Node.Id].lastSeen = now
} }
n.Unlock() n.Unlock()
case "close": case "close":
@@ -373,13 +371,13 @@ func (n *network) sendMsg(msgType string, channel string) error {
protoMsg = &pbNet.Solicit{ protoMsg = &pbNet.Solicit{
Node: node, Node: node,
} }
case "neighbour": case "peer":
n.RLock() n.RLock()
var err error var err error
// get all the neighbours down to MaxDepth // get all the node peers down to MaxDepth
protoMsg, err = n.node.getNeighbours(MaxDepth) protoMsg, err = n.node.getProtoTopology(MaxDepth)
if err != nil { if err != nil {
log.Debugf("Network unable to retrieve node neighbours: %s", err) log.Debugf("Network unable to retrieve node peers: %s", err)
return err return err
} }
n.RUnlock() n.RUnlock()
@@ -416,7 +414,7 @@ func (n *network) sendMsg(msgType string, channel string) error {
return nil return nil
} }
// announce announces node neighbourhood to the network // announce announces node peers to the network
func (n *network) announce(client transport.Client) { func (n *network) announce(client transport.Client) {
announce := time.NewTicker(AnnounceTime) announce := time.NewTicker(AnnounceTime)
defer announce.Stop() defer announce.Stop()
@@ -427,18 +425,18 @@ func (n *network) announce(client transport.Client) {
return return
case <-announce.C: case <-announce.C:
// advertise yourself to the network // advertise yourself to the network
if err := n.sendMsg("neighbour", NetworkChannel); err != nil { if err := n.sendMsg("peer", NetworkChannel); err != nil {
log.Debugf("Network failed to advertise neighbours: %v", err) log.Debugf("Network failed to advertise peers: %v", err)
continue continue
} }
} }
} }
} }
// pruneNode removes a node with given id from the list of neighbours. It also removes all routes originted by this node. // pruneNode removes a node with given id from the list of peers. It also removes all routes originted by this node.
// NOTE: this method is not thread-safe; when calling it make sure you lock the particular code segment // NOTE: this method is not thread-safe; when calling it make sure you lock the particular code segment
func (n *network) pruneNode(id string) error { func (n *network) pruneNode(id string) error {
delete(n.neighbours, id) delete(n.peers, id)
// lookup all the routes originated at this node // lookup all the routes originated at this node
q := router.NewQuery( q := router.NewQuery(
router.QueryRouter(id), router.QueryRouter(id),
@@ -470,7 +468,7 @@ func (n *network) prune() {
return return
case <-prune.C: case <-prune.C:
n.Lock() n.Lock()
for id, node := range n.neighbours { for id, node := range n.peers {
if id == n.options.Id { if id == n.options.Id {
continue continue
} }
@@ -528,8 +526,8 @@ func (n *network) acceptCtrlConn(l tunnel.Listener, recv chan *transport.Message
// setRouteMetric calculates metric of the route and updates it in place // setRouteMetric calculates metric of the route and updates it in place
// - Local route metric is 1 // - Local route metric is 1
// - Routes with ID of adjacent neighbour are 10 // - Routes with ID of adjacent nodes are 10
// - Routes of neighbours of the advertiser are 100 // - Routes by peers of the advertiser are 100
// - Routes beyond your neighbourhood are 1000 // - Routes beyond your neighbourhood are 1000
func (n *network) setRouteMetric(route *router.Route) { func (n *network) setRouteMetric(route *router.Route) {
// we are the origin of the route // we are the origin of the route
@@ -539,16 +537,16 @@ func (n *network) setRouteMetric(route *router.Route) {
} }
n.RLock() n.RLock()
// check if the route origin is our neighbour // check if the route origin is our peer
if _, ok := n.neighbours[route.Router]; ok { if _, ok := n.peers[route.Router]; ok {
route.Metric = 10 route.Metric = 10
n.RUnlock() n.RUnlock()
return return
} }
// check if the route origin is the neighbour of our neighbour // check if the route origin is the peer of our peer
for _, node := range n.neighbours { for _, peer := range n.peers {
for id := range node.neighbours { for id := range peer.peers {
if route.Router == id { if route.Router == id {
route.Metric = 100 route.Metric = 100
n.RUnlock() n.RUnlock()
@@ -586,19 +584,19 @@ func (n *network) processCtrlChan(client transport.Client, listener tunnel.Liste
if pbRtrAdvert.Id == n.options.Id { if pbRtrAdvert.Id == n.options.Id {
continue continue
} }
// loookup advertising node in our neighbourhood // loookup advertising node in our peers
n.RLock() n.RLock()
log.Debugf("Network received advert message from: %s", pbRtrAdvert.Id) log.Debugf("Network received advert message from: %s", pbRtrAdvert.Id)
advertNode, ok := n.neighbours[pbRtrAdvert.Id] advertNode, ok := n.peers[pbRtrAdvert.Id]
if !ok { if !ok {
// advertising node has not been registered as our neighbour, yet // advertising node has not been registered as our peer, yet
// let's add it to the map of our neighbours // let's add it to our peers
advertNode = &node{ advertNode = &node{
id: pbRtrAdvert.Id, id: pbRtrAdvert.Id,
neighbours: make(map[string]*node), peers: make(map[string]*node),
lastSeen: now, lastSeen: now,
} }
n.neighbours[pbRtrAdvert.Id] = advertNode n.peers[pbRtrAdvert.Id] = advertNode
// send a solicit message when discovering a new node // send a solicit message when discovering a new node
if err := n.sendMsg("solicit", NetworkChannel); err != nil { if err := n.sendMsg("solicit", NetworkChannel); err != nil {
log.Debugf("Network failed to send solicit message: %s", err) log.Debugf("Network failed to send solicit message: %s", err)
@@ -611,16 +609,16 @@ func (n *network) processCtrlChan(client transport.Client, listener tunnel.Liste
// set the address of the advertising node // set the address of the advertising node
// we know Route.Gateway is the address of advertNode // we know Route.Gateway is the address of advertNode
// NOTE: this is true only when advertNode had not been registered // NOTE: this is true only when advertNode had not been registered
// as our neighbour when we received the advert from it // as our peer when we received the advert from it
if advertNode.address == "" { if advertNode.address == "" {
advertNode.address = event.Route.Gateway advertNode.address = event.Route.Gateway
} }
// if advertising node id is not the same as Route.Router // if advertising node id is not the same as Route.Router
// we know the advertising node is not the origin of the route // we know the advertising node is not the origin of the route
if advertNode.id != event.Route.Router { if advertNode.id != event.Route.Router {
// if the origin router is not in the advertising node neighbourhood // if the origin router is not the advertising node peer
// we can't rule out potential routing loops so we bail here // we can't rule out potential routing loops so we bail here
if _, ok := advertNode.neighbours[event.Route.Router]; !ok { if _, ok := advertNode.peers[event.Route.Router]; !ok {
continue continue
} }
} }
@@ -821,7 +819,7 @@ func (n *network) Connect() error {
// go resolving network nodes // go resolving network nodes
go n.resolve() go n.resolve()
// broadcast neighbourhood // broadcast peers
go n.announce(netClient) go n.announce(netClient)
// prune stale nodes // prune stale nodes
go n.prune() go n.prune()
@@ -839,48 +837,6 @@ func (n *network) Connect() error {
return nil return nil
} }
// Nodes returns a list of all network nodes
func (n *network) Nodes() []Node {
//track the visited nodes
visited := make(map[string]*node)
// queue of the nodes to visit
queue := list.New()
// we need to freeze the network graph here
// otherwise we might get invalid results
n.RLock()
defer n.RUnlock()
// push network node to the back of queue
queue.PushBack(n.node)
// mark the node as visited
visited[n.node.id] = n.node
// keep iterating over the queue until its empty
for queue.Len() > 0 {
// pop the node from the front of the queue
qnode := queue.Front()
// iterate through all of its neighbours
// mark the visited nodes; enqueue the non-visted
for id, node := range qnode.Value.(*node).neighbours {
if _, ok := visited[id]; !ok {
visited[id] = node
queue.PushBack(node)
}
}
// remove the node from the queue
queue.Remove(qnode)
}
var nodes []Node
// collect all the nodes and return them
for _, node := range visited {
nodes = append(nodes, node)
}
return nodes
}
func (n *network) close() error { func (n *network) close() error {
// stop the server // stop the server
if err := n.server.Stop(); err != nil { if err := n.server.Stop(); err != nil {

136
network/handler/handler.go
View File

@@ -16,6 +16,74 @@ type Network struct {
Network network.Network Network network.Network
} }
// ListNodes returns a list of all accessible nodes in the network
func (n *Network) ListNodes(ctx context.Context, req *pbNet.ListRequest, resp *pbNet.ListResponse) error {
nodes := n.Network.Nodes()
var respNodes []*pbNet.Node
for _, node := range nodes {
respNode := &pbNet.Node{
Id: node.Id(),
Address: node.Address(),
}
respNodes = append(respNodes, respNode)
}
resp.Nodes = respNodes
return nil
}
// ListPeers returns a list of all the nodes the node has a direct link with
func (n *Network) ListPeers(ctx context.Context, req *pbNet.PeerRequest, resp *pbNet.PeerResponse) error {
// extract the id of the node to query
id := req.Id
// if no id is passed, we assume local node
if id == "" {
id = n.Network.Id()
}
// get all the nodes in the network
nodes := n.Network.Nodes()
// sort the slice of nodes
sort.Slice(nodes, func(i, j int) bool { return nodes[i].Id() <= nodes[j].Id() })
// find a node with a given id
i := sort.Search(len(nodes), func(j int) bool { return nodes[j].Id() >= id })
var nodePeers []*pbNet.Node
// collect all the node peers into slice
if i < len(nodes) && nodes[i].Id() == id {
for _, peer := range nodes[i].Peers() {
// don't return yourself in response
if peer.Id() == n.Network.Id() {
continue
}
pbPeer := &pbNet.Node{
Id: peer.Id(),
Address: peer.Address(),
}
nodePeers = append(nodePeers, pbPeer)
}
}
// requested node
node := &pbNet.Node{
Id: nodes[i].Id(),
Address: nodes[i].Address(),
}
// creaate peers answer
peers := &pbNet.Peers{
Node: node,
Peers: nodePeers,
}
resp.Peers = peers
return nil
}
// ListRoutes returns a list of routing table routes // ListRoutes returns a list of routing table routes
func (n *Network) ListRoutes(ctx context.Context, req *pbRtr.Request, resp *pbRtr.ListResponse) error { func (n *Network) ListRoutes(ctx context.Context, req *pbRtr.Request, resp *pbRtr.ListResponse) error {
routes, err := n.Network.Options().Router.Table().List() routes, err := n.Network.Options().Router.Table().List()
@@ -41,71 +109,3 @@ func (n *Network) ListRoutes(ctx context.Context, req *pbRtr.Request, resp *pbRt
return nil return nil
} }
// ListNodes returns a list of all accessible nodes in the network
func (n *Network) ListNodes(ctx context.Context, req *pbNet.ListRequest, resp *pbNet.ListResponse) error {
nodes := n.Network.Nodes()
var respNodes []*pbNet.Node
for _, node := range nodes {
respNode := &pbNet.Node{
Id: node.Id(),
Address: node.Address(),
}
respNodes = append(respNodes, respNode)
}
resp.Nodes = respNodes
return nil
}
// Neighbourhood returns a list of immediate neighbours
func (n *Network) Neighbourhood(ctx context.Context, req *pbNet.NeighbourhoodRequest, resp *pbNet.NeighbourhoodResponse) error {
// extract the id of the node to query
id := req.Id
// if no id is passed, we assume local node
if id == "" {
id = n.Network.Id()
}
// get all the nodes in the network
nodes := n.Network.Nodes()
// sort the slice of nodes
sort.Slice(nodes, func(i, j int) bool { return nodes[i].Id() <= nodes[j].Id() })
// find a node with a given id
i := sort.Search(len(nodes), func(j int) bool { return nodes[j].Id() >= id })
var neighbours []*pbNet.Node
// collect all the nodes in the neighbourhood of the found node
if i < len(nodes) && nodes[i].Id() == id {
for _, neighbour := range nodes[i].Neighbourhood() {
// don't return yourself in response
if neighbour.Id() == n.Network.Id() {
continue
}
pbNeighbour := &pbNet.Node{
Id: neighbour.Id(),
Address: neighbour.Address(),
}
neighbours = append(neighbours, pbNeighbour)
}
}
// requested neighbourhood node
node := &pbNet.Node{
Id: nodes[i].Id(),
Address: nodes[i].Address(),
}
// creaate neighbourhood answer
neighbourhood := &pbNet.Neighbourhood{
Node: node,
Neighbours: neighbours,
}
resp.Neighbourhood = neighbourhood
return nil
}

4
network/network.go
View File

@@ -28,8 +28,8 @@ type Node interface {
Id() string Id() string
// Address is node bind address // Address is node bind address
Address() string Address() string
// Neighbourhood is node neighbourhood // Peers returns node peers
Neighbourhood() []Node Peers() []Node
// Network is the network node is in // Network is the network node is in
Network() Network Network() Network
} }

168
network/node.go
View File

@@ -1,6 +1,7 @@
package network package network
import ( import (
"container/list"
"errors" "errors"
"sync" "sync"
"time" "time"
@@ -20,11 +21,11 @@ type node struct {
id string id string
// address is node address // address is node address
address string address string
// neighbours maps the node neighbourhood // peers are nodes with direct link to this node
neighbours map[string]*node peers map[string]*node
// network returns the node network // network returns the node network
network Network network Network
// lastSeen stores the time the node has been seen last time // lastSeen keeps track of node lifetime and updates
lastSeen time.Time lastSeen time.Time
} }
@@ -43,112 +44,147 @@ func (n *node) Network() Network {
return n.network return n.network
} }
// Neighbourhood returns node neighbourhood // Nodes returns a slice if all nodes in node topology
func (n *node) Neighbourhood() []Node { func (n *node) Nodes() []Node {
var nodes []Node //track the visited nodes
visited := make(map[string]*node)
// queue of the nodes to visit
queue := list.New()
// we need to freeze the network graph here
// otherwise we might get invalid results
n.RLock() n.RLock()
for _, neighbourNode := range n.neighbours { defer n.RUnlock()
// make a copy of the node
n := &node{ // push node to the back of queue
id: neighbourNode.id, queue.PushBack(n)
address: neighbourNode.address, // mark the node as visited
network: neighbourNode.network, visited[n.id] = n
// keep iterating over the queue until its empty
for queue.Len() > 0 {
// pop the node from the front of the queue
qnode := queue.Front()
// iterate through all of the node peers
// mark the visited nodes; enqueue the non-visted
for id, node := range qnode.Value.(*node).peers {
if _, ok := visited[id]; !ok {
visited[id] = node
queue.PushBack(node)
} }
// NOTE: we do not care about neighbour's neighbours
nodes = append(nodes, n)
} }
n.RUnlock() // remove the node from the queue
queue.Remove(qnode)
}
var nodes []Node
// collect all the nodes and return them
for _, node := range visited {
nodes = append(nodes, node)
}
return nodes return nodes
} }
// getNeighbours collects node neighbours up to given depth into pbNeighbours // Peers returns node peers
// NOTE: this method is not thread safe, so make sure you serialize access to it func (n *node) Peers() []Node {
// NOTE: we should be able to read-Lock this, even though it's recursive var peers []Node
func (n *node) getNeighbours(depth int) (*pbNet.Neighbour, error) { n.RLock()
for _, peer := range n.peers {
// make a copy of the node
p := &node{
id: peer.id,
address: peer.address,
network: peer.network,
}
// NOTE: we do not care about peer's peers
peers = append(peers, p)
}
n.RUnlock()
return peers
}
// getProtoTopology returns node peers up to given depth encoded in protobufs
// NOTE: this method is NOT thread-safe, so make sure you serialize access to it
func (n *node) getProtoTopology(depth int) (*pbNet.Peer, error) {
node := &pbNet.Node{ node := &pbNet.Node{
Id: n.id, Id: n.id,
Address: n.address, Address: n.address,
} }
pbNeighbours := &pbNet.Neighbour{
pbPeers := &pbNet.Peer{
Node: node, Node: node,
Neighbours: make([]*pbNet.Neighbour, 0), Peers: make([]*pbNet.Peer, 0),
} }
// return if have either reached the depth or have no more neighbours // return if have either reached the depth or have no more peers
if depth == 0 || len(n.neighbours) == 0 { if depth == 0 || len(n.peers) == 0 {
return pbNeighbours, nil return pbPeers, nil
} }
// decrement the depth // decrement the depth
depth-- depth--
var neighbours []*pbNet.Neighbour var peers []*pbNet.Peer
for _, neighbour := range n.neighbours { for _, peer := range n.peers {
// get neighbours of the neighbour // get peers of the node peers
// NOTE: this is [not] a recursive call // NOTE: this is [not] a recursive call
pbNodeNeighbour, err := neighbour.getNeighbours(depth) pbPeerPeer, err := peer.getProtoTopology(depth)
if err != nil { if err != nil {
return nil, err return nil, err
} }
// add current neighbour to explored neighbours // add current peer to explored peers
neighbours = append(neighbours, pbNodeNeighbour) peers = append(peers, pbPeerPeer)
} }
// add neighbours to the parent topology // add peers to the parent topology
pbNeighbours.Neighbours = neighbours pbPeers.Peers = peers
return pbNeighbours, nil return pbPeers, nil
} }
// unpackNeighbour unpacks pbNet.Neighbour into node of given depth // unpackPeer unpacks pbNet.Peer into node topology of given depth
// NOTE: this method is not thread safe, so make sure you serialize access to it // NOTE: this method is NOT thread-safe, so make sure you serialize access to it
func unpackNeighbour(pbNeighbour *pbNet.Neighbour, depth int) (*node, error) { func unpackPeer(pbPeer *pbNet.Peer, depth int) *node {
if pbNeighbour == nil { peerNode := &node{
return nil, errors.New("neighbour not initialized") id: pbPeer.Node.Id,
address: pbPeer.Node.Address,
peers: make(map[string]*node),
} }
neighbourNode := &node{ // return if have either reached the depth or have no more peers
id: pbNeighbour.Node.Id, if depth == 0 || len(pbPeer.Peers) == 0 {
address: pbNeighbour.Node.Address, return peerNode
neighbours: make(map[string]*node),
}
// return if have either reached the depth or have no more neighbours
if depth == 0 || len(pbNeighbour.Neighbours) == 0 {
return neighbourNode, nil
} }
// decrement the depth // decrement the depth
depth-- depth--
neighbours := make(map[string]*node) peers := make(map[string]*node)
for _, pbNode := range pbNeighbour.Neighbours { for _, pbPeer := range pbPeer.Peers {
node, err := unpackNeighbour(pbNode, depth) peer := unpackPeer(pbPeer, depth)
if err != nil { peers[pbPeer.Node.Id] = peer
return nil, err
}
neighbours[pbNode.Node.Id] = node
} }
neighbourNode.neighbours = neighbours peerNode.peers = peers
return neighbourNode, nil return peerNode
} }
// updateNeighbour updates node neighbour up to given depth // updatePeer updates node peer up to given depth
// NOTE: this method is not thread safe, so make sure you serialize access to it // NOTE: this method is not thread safe, so make sure you serialize access to it
func (n *node) updateNeighbour(neighbour *pbNet.Neighbour, depth int) error { func (n *node) updatePeerTopology(pbPeer *pbNet.Peer, depth int) error {
// unpack neighbour into topology of size MaxDepth-1 if pbPeer == nil {
// NOTE: we need MaxDepth-1 because node n is the parent adding which return errors.New("peer not initialized")
// gives us the max neighbour topology we maintain and propagate
node, err := unpackNeighbour(neighbour, MaxDepth-1)
if err != nil {
return err
} }
// update node neighbours with new topology // NOTE: we need MaxDepth-1 because node n is the parent adding which
n.neighbours[neighbour.Node.Id] = node // gives us the max peer topology we maintain and propagate
peer := unpackPeer(pbPeer, MaxDepth-1)
// update node peers with new topology
n.peers[pbPeer.Node.Id] = peer
return nil return nil
} }

16
network/proto/network.micro.go
View File

@@ -36,7 +36,7 @@ var _ server.Option
type NetworkService interface { type NetworkService interface {
ListNodes(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error) ListNodes(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error)
Neighbourhood(ctx context.Context, in *NeighbourhoodRequest, opts ...client.CallOption) (*NeighbourhoodResponse, error) ListPeers(ctx context.Context, in *PeerRequest, opts ...client.CallOption) (*PeerResponse, error)
ListRoutes(ctx context.Context, in *proto1.Request, opts ...client.CallOption) (*proto1.ListResponse, error) ListRoutes(ctx context.Context, in *proto1.Request, opts ...client.CallOption) (*proto1.ListResponse, error)
} }
@@ -68,9 +68,9 @@ func (c *networkService) ListNodes(ctx context.Context, in *ListRequest, opts ..
return out, nil return out, nil
} }
func (c *networkService) Neighbourhood(ctx context.Context, in *NeighbourhoodRequest, opts ...client.CallOption) (*NeighbourhoodResponse, error) { func (c *networkService) ListPeers(ctx context.Context, in *PeerRequest, opts ...client.CallOption) (*PeerResponse, error) {
req := c.c.NewRequest(c.name, "Network.Neighbourhood", in) req := c.c.NewRequest(c.name, "Network.ListPeers", in)
out := new(NeighbourhoodResponse) out := new(PeerResponse)
err := c.c.Call(ctx, req, out, opts...) err := c.c.Call(ctx, req, out, opts...)
if err != nil { if err != nil {
return nil, err return nil, err
@@ -92,14 +92,14 @@ func (c *networkService) ListRoutes(ctx context.Context, in *proto1.Request, opt
type NetworkHandler interface { type NetworkHandler interface {
ListNodes(context.Context, *ListRequest, *ListResponse) error ListNodes(context.Context, *ListRequest, *ListResponse) error
Neighbourhood(context.Context, *NeighbourhoodRequest, *NeighbourhoodResponse) error ListPeers(context.Context, *PeerRequest, *PeerResponse) error
ListRoutes(context.Context, *proto1.Request, *proto1.ListResponse) error ListRoutes(context.Context, *proto1.Request, *proto1.ListResponse) error
} }
func RegisterNetworkHandler(s server.Server, hdlr NetworkHandler, opts ...server.HandlerOption) error { func RegisterNetworkHandler(s server.Server, hdlr NetworkHandler, opts ...server.HandlerOption) error {
type network interface { type network interface {
ListNodes(ctx context.Context, in *ListRequest, out *ListResponse) error ListNodes(ctx context.Context, in *ListRequest, out *ListResponse) error
Neighbourhood(ctx context.Context, in *NeighbourhoodRequest, out *NeighbourhoodResponse) error ListPeers(ctx context.Context, in *PeerRequest, out *PeerResponse) error
ListRoutes(ctx context.Context, in *proto1.Request, out *proto1.ListResponse) error ListRoutes(ctx context.Context, in *proto1.Request, out *proto1.ListResponse) error
} }
type Network struct { type Network struct {
@@ -117,8 +117,8 @@ func (h *networkHandler) ListNodes(ctx context.Context, in *ListRequest, out *Li
return h.NetworkHandler.ListNodes(ctx, in, out) return h.NetworkHandler.ListNodes(ctx, in, out)
} }
func (h *networkHandler) Neighbourhood(ctx context.Context, in *NeighbourhoodRequest, out *NeighbourhoodResponse) error { func (h *networkHandler) ListPeers(ctx context.Context, in *PeerRequest, out *PeerResponse) error {
return h.NetworkHandler.Neighbourhood(ctx, in, out) return h.NetworkHandler.ListPeers(ctx, in, out)
} }
func (h *networkHandler) ListRoutes(ctx context.Context, in *proto1.Request, out *proto1.ListResponse) error { func (h *networkHandler) ListRoutes(ctx context.Context, in *proto1.Request, out *proto1.ListResponse) error {

215
network/proto/network.pb.go
View File

@@ -93,129 +93,129 @@ func (m *ListResponse) GetNodes() []*Node {
return nil return nil
} }
// NeighbourhoodRequest is sent to query node neighbourhood // PeerRequest is sent to query node peers
type NeighbourhoodRequest struct { type PeerRequest struct {
Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"` Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"` XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"` XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"` XXX_sizecache int32 `json:"-"`
} }
func (m *NeighbourhoodRequest) Reset() { *m = NeighbourhoodRequest{} } func (m *PeerRequest) Reset() { *m = PeerRequest{} }
func (m *NeighbourhoodRequest) String() string { return proto.CompactTextString(m) } func (m *PeerRequest) String() string { return proto.CompactTextString(m) }
func (*NeighbourhoodRequest) ProtoMessage() {} func (*PeerRequest) ProtoMessage() {}
func (*NeighbourhoodRequest) Descriptor() ([]byte, []int) { func (*PeerRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_8571034d60397816, []int{2} return fileDescriptor_8571034d60397816, []int{2}
} }
func (m *NeighbourhoodRequest) XXX_Unmarshal(b []byte) error { func (m *PeerRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_NeighbourhoodRequest.Unmarshal(m, b) return xxx_messageInfo_PeerRequest.Unmarshal(m, b)
} }
func (m *NeighbourhoodRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { func (m *PeerRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_NeighbourhoodRequest.Marshal(b, m, deterministic) return xxx_messageInfo_PeerRequest.Marshal(b, m, deterministic)
} }
func (m *NeighbourhoodRequest) XXX_Merge(src proto.Message) { func (m *PeerRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_NeighbourhoodRequest.Merge(m, src) xxx_messageInfo_PeerRequest.Merge(m, src)
} }
func (m *NeighbourhoodRequest) XXX_Size() int { func (m *PeerRequest) XXX_Size() int {
return xxx_messageInfo_NeighbourhoodRequest.Size(m) return xxx_messageInfo_PeerRequest.Size(m)
} }
func (m *NeighbourhoodRequest) XXX_DiscardUnknown() { func (m *PeerRequest) XXX_DiscardUnknown() {
xxx_messageInfo_NeighbourhoodRequest.DiscardUnknown(m) xxx_messageInfo_PeerRequest.DiscardUnknown(m)
} }
var xxx_messageInfo_NeighbourhoodRequest proto.InternalMessageInfo var xxx_messageInfo_PeerRequest proto.InternalMessageInfo
func (m *NeighbourhoodRequest) GetId() string { func (m *PeerRequest) GetId() string {
if m != nil { if m != nil {
return m.Id return m.Id
} }
return "" return ""
} }
// NeighbourhoodResponse returns node neighbourhood // PeerResponse returns node neighbourhood
type NeighbourhoodResponse struct { type PeerResponse struct {
Neighbourhoodi *Neighbourhood `protobuf:"bytes,1,opt,name=neighbourhoodi,proto3" json:"neighbourhoodi,omitempty"` Peers *Peers `protobuf:"bytes,1,opt,name=peers,proto3" json:"peers,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"` XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"` XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"` XXX_sizecache int32 `json:"-"`
} }
func (m *NeighbourhoodResponse) Reset() { *m = NeighbourhoodResponse{} } func (m *PeerResponse) Reset() { *m = PeerResponse{} }
func (m *NeighbourhoodResponse) String() string { return proto.CompactTextString(m) } func (m *PeerResponse) String() string { return proto.CompactTextString(m) }
func (*NeighbourhoodResponse) ProtoMessage() {} func (*PeerResponse) ProtoMessage() {}
func (*NeighbourhoodResponse) Descriptor() ([]byte, []int) { func (*PeerResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_8571034d60397816, []int{3} return fileDescriptor_8571034d60397816, []int{3}
} }
func (m *NeighbourhoodResponse) XXX_Unmarshal(b []byte) error { func (m *PeerResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_NeighbourhoodResponse.Unmarshal(m, b) return xxx_messageInfo_PeerResponse.Unmarshal(m, b)
} }
func (m *NeighbourhoodResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { func (m *PeerResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_NeighbourhoodResponse.Marshal(b, m, deterministic) return xxx_messageInfo_PeerResponse.Marshal(b, m, deterministic)
} }
func (m *NeighbourhoodResponse) XXX_Merge(src proto.Message) { func (m *PeerResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_NeighbourhoodResponse.Merge(m, src) xxx_messageInfo_PeerResponse.Merge(m, src)
} }
func (m *NeighbourhoodResponse) XXX_Size() int { func (m *PeerResponse) XXX_Size() int {
return xxx_messageInfo_NeighbourhoodResponse.Size(m) return xxx_messageInfo_PeerResponse.Size(m)
} }
func (m *NeighbourhoodResponse) XXX_DiscardUnknown() { func (m *PeerResponse) XXX_DiscardUnknown() {
xxx_messageInfo_NeighbourhoodResponse.DiscardUnknown(m) xxx_messageInfo_PeerResponse.DiscardUnknown(m)
} }
var xxx_messageInfo_NeighbourhoodResponse proto.InternalMessageInfo var xxx_messageInfo_PeerResponse proto.InternalMessageInfo
func (m *NeighbourhoodResponse) GetNeighbourhoodi() *Neighbourhood { func (m *PeerResponse) GetPeers() *Peers {
if m != nil { if m != nil {
return m.Neighbourhoodi return m.Peers
} }
return nil return nil
} }
type Neighbourhood struct { type Peers struct {
Node *Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"` Node *Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
Neighbours []*Node `protobuf:"bytes,2,rep,name=neighbours,proto3" json:"neighbours,omitempty"` Peers []*Node `protobuf:"bytes,2,rep,name=peers,proto3" json:"peers,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"` XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"` XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"` XXX_sizecache int32 `json:"-"`
} }
func (m *Neighbourhood) Reset() { *m = Neighbourhood{} } func (m *Peers) Reset() { *m = Peers{} }
func (m *Neighbourhood) String() string { return proto.CompactTextString(m) } func (m *Peers) String() string { return proto.CompactTextString(m) }
func (*Neighbourhood) ProtoMessage() {} func (*Peers) ProtoMessage() {}
func (*Neighbourhood) Descriptor() ([]byte, []int) { func (*Peers) Descriptor() ([]byte, []int) {
return fileDescriptor_8571034d60397816, []int{4} return fileDescriptor_8571034d60397816, []int{4}
} }
func (m *Neighbourhood) XXX_Unmarshal(b []byte) error { func (m *Peers) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Neighbourhood.Unmarshal(m, b) return xxx_messageInfo_Peers.Unmarshal(m, b)
} }
func (m *Neighbourhood) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { func (m *Peers) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Neighbourhood.Marshal(b, m, deterministic) return xxx_messageInfo_Peers.Marshal(b, m, deterministic)
} }
func (m *Neighbourhood) XXX_Merge(src proto.Message) { func (m *Peers) XXX_Merge(src proto.Message) {
xxx_messageInfo_Neighbourhood.Merge(m, src) xxx_messageInfo_Peers.Merge(m, src)
} }
func (m *Neighbourhood) XXX_Size() int { func (m *Peers) XXX_Size() int {
return xxx_messageInfo_Neighbourhood.Size(m) return xxx_messageInfo_Peers.Size(m)
} }
func (m *Neighbourhood) XXX_DiscardUnknown() { func (m *Peers) XXX_DiscardUnknown() {
xxx_messageInfo_Neighbourhood.DiscardUnknown(m) xxx_messageInfo_Peers.DiscardUnknown(m)
} }
var xxx_messageInfo_Neighbourhood proto.InternalMessageInfo var xxx_messageInfo_Peers proto.InternalMessageInfo
func (m *Neighbourhood) GetNode() *Node { func (m *Peers) GetNode() *Node {
if m != nil { if m != nil {
return m.Node return m.Node
} }
return nil return nil
} }
func (m *Neighbourhood) GetNeighbours() []*Node { func (m *Peers) GetPeers() []*Node {
if m != nil { if m != nil {
return m.Neighbours return m.Peers
} }
return nil return nil
} }
@@ -393,52 +393,52 @@ func (m *Solicit) GetNode() *Node {
return nil return nil
} }
// Neighbour is used to nnounce node neighbourhood // Peer is used to announce node peers
type Neighbour struct { type Peer struct {
// network node // network node
Node *Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"` Node *Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
// neighbours // neighbours
Neighbours []*Neighbour `protobuf:"bytes,2,rep,name=neighbours,proto3" json:"neighbours,omitempty"` Peers []*Peer `protobuf:"bytes,2,rep,name=peers,proto3" json:"peers,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"` XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"` XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"` XXX_sizecache int32 `json:"-"`
} }
func (m *Neighbour) Reset() { *m = Neighbour{} } func (m *Peer) Reset() { *m = Peer{} }
func (m *Neighbour) String() string { return proto.CompactTextString(m) } func (m *Peer) String() string { return proto.CompactTextString(m) }
func (*Neighbour) ProtoMessage() {} func (*Peer) ProtoMessage() {}
func (*Neighbour) Descriptor() ([]byte, []int) { func (*Peer) Descriptor() ([]byte, []int) {
return fileDescriptor_8571034d60397816, []int{9} return fileDescriptor_8571034d60397816, []int{9}
} }
func (m *Neighbour) XXX_Unmarshal(b []byte) error { func (m *Peer) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Neighbour.Unmarshal(m, b) return xxx_messageInfo_Peer.Unmarshal(m, b)
} }
func (m *Neighbour) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { func (m *Peer) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Neighbour.Marshal(b, m, deterministic) return xxx_messageInfo_Peer.Marshal(b, m, deterministic)
} }
func (m *Neighbour) XXX_Merge(src proto.Message) { func (m *Peer) XXX_Merge(src proto.Message) {
xxx_messageInfo_Neighbour.Merge(m, src) xxx_messageInfo_Peer.Merge(m, src)
} }
func (m *Neighbour) XXX_Size() int { func (m *Peer) XXX_Size() int {
return xxx_messageInfo_Neighbour.Size(m) return xxx_messageInfo_Peer.Size(m)
} }
func (m *Neighbour) XXX_DiscardUnknown() { func (m *Peer) XXX_DiscardUnknown() {
xxx_messageInfo_Neighbour.DiscardUnknown(m) xxx_messageInfo_Peer.DiscardUnknown(m)
} }
var xxx_messageInfo_Neighbour proto.InternalMessageInfo var xxx_messageInfo_Peer proto.InternalMessageInfo
func (m *Neighbour) GetNode() *Node { func (m *Peer) GetNode() *Node {
if m != nil { if m != nil {
return m.Node return m.Node
} }
return nil return nil
} }
func (m *Neighbour) GetNeighbours() []*Neighbour { func (m *Peer) GetPeers() []*Peer {
if m != nil { if m != nil {
return m.Neighbours return m.Peers
} }
return nil return nil
} }
@@ -446,42 +446,41 @@ func (m *Neighbour) GetNeighbours() []*Neighbour {
func init() { func init() {
proto.RegisterType((*ListRequest)(nil), "go.micro.network.ListRequest") proto.RegisterType((*ListRequest)(nil), "go.micro.network.ListRequest")
proto.RegisterType((*ListResponse)(nil), "go.micro.network.ListResponse") proto.RegisterType((*ListResponse)(nil), "go.micro.network.ListResponse")
proto.RegisterType((*NeighbourhoodRequest)(nil), "go.micro.network.NeighbourhoodRequest") proto.RegisterType((*PeerRequest)(nil), "go.micro.network.PeerRequest")
proto.RegisterType((*NeighbourhoodResponse)(nil), "go.micro.network.NeighbourhoodResponse") proto.RegisterType((*PeerResponse)(nil), "go.micro.network.PeerResponse")
proto.RegisterType((*Neighbourhood)(nil), "go.micro.network.Neighbourhood") proto.RegisterType((*Peers)(nil), "go.micro.network.Peers")
proto.RegisterType((*Node)(nil), "go.micro.network.Node") proto.RegisterType((*Node)(nil), "go.micro.network.Node")
proto.RegisterType((*Connect)(nil), "go.micro.network.Connect") proto.RegisterType((*Connect)(nil), "go.micro.network.Connect")
proto.RegisterType((*Close)(nil), "go.micro.network.Close") proto.RegisterType((*Close)(nil), "go.micro.network.Close")
proto.RegisterType((*Solicit)(nil), "go.micro.network.Solicit") proto.RegisterType((*Solicit)(nil), "go.micro.network.Solicit")
proto.RegisterType((*Neighbour)(nil), "go.micro.network.Neighbour") proto.RegisterType((*Peer)(nil), "go.micro.network.Peer")
} }
func init() { proto.RegisterFile("network.proto", fileDescriptor_8571034d60397816) } func init() { proto.RegisterFile("network.proto", fileDescriptor_8571034d60397816) }
var fileDescriptor_8571034d60397816 = []byte{ var fileDescriptor_8571034d60397816 = []byte{
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0xfc, 0x03, 0x00, 0x00,
} }

22
network/proto/network.proto
View File

@@ -7,7 +7,7 @@ import "github.com/micro/go-micro/router/proto/router.proto";
// Network service is usesd to gain visibility into networks // Network service is usesd to gain visibility into networks
service Network { service Network {
rpc ListNodes(ListRequest) returns (ListResponse) {}; rpc ListNodes(ListRequest) returns (ListResponse) {};
rpc Neighbourhood(NeighbourhoodRequest) returns (NeighbourhoodResponse) {}; rpc ListPeers(PeerRequest) returns (PeerResponse) {};
rpc ListRoutes(go.micro.router.Request) returns (go.micro.router.ListResponse) {}; rpc ListRoutes(go.micro.router.Request) returns (go.micro.router.ListResponse) {};
} }
@@ -19,19 +19,19 @@ message ListResponse {
repeated Node nodes = 1; repeated Node nodes = 1;
} }
// NeighbourhoodRequest is sent to query node neighbourhood // PeerRequest is sent to query node peers
message NeighbourhoodRequest { message PeerRequest {
string id = 1; string id = 1;
} }
// NeighbourhoodResponse returns node neighbourhood // PeerResponse returns node neighbourhood
message NeighbourhoodResponse { message PeerResponse {
Neighbourhood neighbourhoodi = 1; Peers peers = 1;
} }
message Neighbourhood { message Peers {
Node node = 1; Node node = 1;
repeated Node neighbours = 2; repeated Node peers = 2;
} }
// Node is network node // Node is network node
@@ -60,10 +60,10 @@ message Solicit {
Node node = 1; Node node = 1;
} }
// Neighbour is used to nnounce node neighbourhood // Peer is used to announce node peers
message Neighbour { message Peer {
// network node // network node
Node node = 1; Node node = 1;
// neighbours // neighbours
repeated Neighbour neighbours = 2; repeated Peer peers = 2;
} }