update the gossiper
This commit is contained in:
Asim Aslam
parent
1ed2b589a2
commit
b343420af6
30
cmd/cmd.go
30
cmd/cmd.go
@ -10,6 +10,7 @@ import (
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"time"
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"github.com/micro/cli"
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"github.com/micro/go-log"
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"github.com/micro/go-micro/client"
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"github.com/micro/go-micro/server"
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@ -301,10 +302,15 @@ func (c *cmd) Before(ctx *cli.Context) error {
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serverOpts = append(serverOpts, server.Registry(*c.opts.Registry))
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clientOpts = append(clientOpts, client.Registry(*c.opts.Registry))
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(*c.opts.Selector).Init(selector.Registry(*c.opts.Registry))
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if err := (*c.opts.Selector).Init(selector.Registry(*c.opts.Registry)); err != nil {
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log.Fatalf("Error configuring registry: %v", err)
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}
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clientOpts = append(clientOpts, client.Selector(*c.opts.Selector))
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(*c.opts.Broker).Init(broker.Registry(*c.opts.Registry))
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if err := (*c.opts.Broker).Init(broker.Registry(*c.opts.Registry)); err != nil {
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log.Fatalf("Error configuring broker: %v", err)
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}
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}
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// Set the selector
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@ -349,15 +355,21 @@ func (c *cmd) Before(ctx *cli.Context) error {
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}
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if len(ctx.String("broker_address")) > 0 {
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(*c.opts.Broker).Init(broker.Addrs(strings.Split(ctx.String("broker_address"), ",")...))
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if err := (*c.opts.Broker).Init(broker.Addrs(strings.Split(ctx.String("broker_address"), ",")...)); err != nil {
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log.Fatalf("Error configuring broker: %v", err)
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}
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}
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if len(ctx.String("registry_address")) > 0 {
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(*c.opts.Registry).Init(registry.Addrs(strings.Split(ctx.String("registry_address"), ",")...))
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if err := (*c.opts.Registry).Init(registry.Addrs(strings.Split(ctx.String("registry_address"), ",")...)); err != nil {
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log.Fatalf("Error configuring registry: %v", err)
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}
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}
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if len(ctx.String("transport_address")) > 0 {
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(*c.opts.Transport).Init(transport.Addrs(strings.Split(ctx.String("transport_address"), ",")...))
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if err := (*c.opts.Transport).Init(transport.Addrs(strings.Split(ctx.String("transport_address"), ",")...)); err != nil {
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log.Fatalf("Error configuring transport: %v", err)
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}
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}
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if len(ctx.String("server_name")) > 0 {
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@ -412,12 +424,16 @@ func (c *cmd) Before(ctx *cli.Context) error {
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// We have some command line opts for the server.
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// Lets set it up
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if len(serverOpts) > 0 {
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(*c.opts.Server).Init(serverOpts...)
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if err := (*c.opts.Server).Init(serverOpts...); err != nil {
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log.Fatalf("Error configuring server: %v", err)
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}
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}
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// Use an init option?
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if len(clientOpts) > 0 {
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(*c.opts.Client).Init(clientOpts...)
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if err := (*c.opts.Client).Init(clientOpts...); err != nil {
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log.Fatalf("Error configuring client: %v", err)
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}
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}
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return nil
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@ -1,4 +1,4 @@
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// Package gossip provides a zero dependency registry using the gossip protocol SWIM
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// Package Gossip provides a gossip registry based on hashicorp/memberlist
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package gossip
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import (
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@ -15,22 +15,13 @@ import (
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"github.com/micro/go-log"
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"github.com/micro/go-micro/registry"
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pb "github.com/micro/go-micro/registry/gossip/proto"
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"github.com/mitchellh/hashstructure"
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)
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type gossipRegistry struct {
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opts registry.Options
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queue *memberlist.TransmitLimitedQueue
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memberlist *memberlist.Memberlist
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delegate *delegate
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sync.RWMutex
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services map[string][]*registry.Service
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watchers map[string]*watcher
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}
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var (
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// defaults to random port
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defaultPort = 0
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const (
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addAction = "update"
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delAction = "delete"
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syncAction = "sync"
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)
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type broadcast struct {
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@ -39,8 +30,134 @@ type broadcast struct {
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}
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type delegate struct {
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queue *memberlist.TransmitLimitedQueue
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updates chan *update
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}
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type gossipRegistry struct {
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queue *memberlist.TransmitLimitedQueue
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registry *gossipRegistry
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updates chan *update
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options registry.Options
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member *memberlist.Memberlist
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interval time.Duration
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sync.RWMutex
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services map[string][]*registry.Service
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s sync.RWMutex
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watchers map[string]chan *registry.Result
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}
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type update struct {
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Update *pb.Update
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Service *registry.Service
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sync chan *registry.Service
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}
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var (
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// You should change this if using secure
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DefaultSecret = []byte("gossip")
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ExpiryTick = time.Second * 5
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)
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func configure(g *gossipRegistry, opts ...registry.Option) error {
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// loop through address list and get valid entries
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addrs := func(curAddrs []string) []string {
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var newAddrs []string
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for _, addr := range curAddrs {
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if trimAddr := strings.TrimSpace(addr); len(trimAddr) > 0 {
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newAddrs = append(newAddrs, trimAddr)
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}
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}
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return newAddrs
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}
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// current address list
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curAddrs := addrs(g.options.Addrs)
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// parse options
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for _, o := range opts {
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o(&g.options)
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}
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// new address list
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newAddrs := addrs(g.options.Addrs)
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// no new nodes and existing member. no configure
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if (len(newAddrs) == len(curAddrs)) && g.member != nil {
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return nil
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}
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// shutdown old member
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if g.member != nil {
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g.member.Shutdown()
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}
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// replace addresses
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curAddrs = newAddrs
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// create a queue
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queue := &memberlist.TransmitLimitedQueue{
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NumNodes: func() int {
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return len(curAddrs)
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},
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RetransmitMult: 3,
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}
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// machine hostname
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hostname, _ := os.Hostname()
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// create a new default config
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c := memberlist.DefaultLocalConfig()
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// set bind to random port
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c.BindPort = 0
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// set the name
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c.Name = strings.Join([]string{"micro", hostname, uuid.New().String()}, "-")
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// set the delegate
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c.Delegate = &delegate{
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updates: g.updates,
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queue: queue,
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}
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// log to dev null
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c.LogOutput = ioutil.Discard
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// set a secret key if secure
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if g.options.Secure {
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k, ok := g.options.Context.Value(contextSecretKey{}).([]byte)
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if !ok {
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// use the default secret
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k = DefaultSecret
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}
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c.SecretKey = k
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}
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// TODO: set advertise addr to advertise behind nat
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// create the memberlist
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m, err := memberlist.Create(c)
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if err != nil {
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return err
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}
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// join the memberlist
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if len(curAddrs) > 0 {
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_, err := m.Join(curAddrs)
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if err != nil {
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return err
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}
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}
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// set internals
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g.queue = queue
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g.member = m
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g.interval = c.GossipInterval
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log.Logf("Registry Listening on %s", m.LocalNode().Address())
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return nil
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}
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func (b *broadcast) Invalidates(other memberlist.Broadcast) bool {
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@ -91,56 +208,35 @@ func (d *delegate) NotifyMsg(b []byte) {
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return
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}
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up := new(pb.Update)
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if err := proto.Unmarshal(b, up); err != nil {
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return
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}
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// only process service action
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if up.Type != "service" {
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return
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}
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var service *registry.Service
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switch up.Metadata["Content-Type"] {
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case "application/json":
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if err := json.Unmarshal(up.Data, &service); err != nil {
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go func() {
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up := new(pb.Update)
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if err := proto.Unmarshal(b, up); err != nil {
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return
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}
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// no other content type
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default:
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return
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}
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d.registry.Lock()
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defer d.registry.Unlock()
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// get existing service
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s := d.registry.services[service.Name]
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// save update
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switch up.Action {
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case "update":
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d.registry.services[service.Name] = addServices(s, []*registry.Service{service})
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case "delete":
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services := delServices(s, []*registry.Service{service})
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if len(services) == 0 {
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delete(d.registry.services, service.Name)
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// only process service action
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if up.Type != "service" {
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return
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}
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d.registry.services[service.Name] = services
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default:
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return
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}
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// notify watchers
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for _, w := range d.registry.watchers {
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select {
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case w.ch <- ®istry.Result{Action: up.Action, Service: service}:
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var service *registry.Service
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switch up.Metadata["Content-Type"] {
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case "application/json":
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if err := json.Unmarshal(up.Data, &service); err != nil {
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return
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}
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// no other content type
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default:
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return
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}
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}
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// send update
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d.updates <- &update{
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Update: up,
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Service: service,
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}
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}()
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}
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func (d *delegate) GetBroadcasts(overhead, limit int) [][]byte {
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@ -148,9 +244,25 @@ func (d *delegate) GetBroadcasts(overhead, limit int) [][]byte {
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}
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func (d *delegate) LocalState(join bool) []byte {
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d.registry.RLock()
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b, _ := json.Marshal(d.registry.services)
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d.registry.RUnlock()
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if !join {
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return []byte{}
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}
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syncCh := make(chan *registry.Service, 1)
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services := map[string][]*registry.Service{}
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d.updates <- &update{
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Update: &pb.Update{
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Action: syncAction,
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},
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sync: syncCh,
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}
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for srv := range syncCh {
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services[srv.Name] = append(services[srv.Name], srv)
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}
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b, _ := json.Marshal(services)
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return b
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}
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@ -161,37 +273,164 @@ func (d *delegate) MergeRemoteState(buf []byte, join bool) {
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if !join {
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return
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}
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var services map[string][]*registry.Service
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if err := json.Unmarshal(buf, &services); err != nil {
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return
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}
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d.registry.Lock()
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for k, v := range services {
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d.registry.services[k] = addServices(d.registry.services[k], v)
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for _, service := range services {
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for _, srv := range service {
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d.updates <- &update{
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Update: &pb.Update{Action: addAction},
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Service: srv,
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sync: nil,
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}
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}
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}
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}
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func (g *gossipRegistry) publish(action string, services []*registry.Service) {
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g.s.RLock()
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for _, sub := range g.watchers {
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go func(sub chan *registry.Result) {
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for _, service := range services {
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sub <- ®istry.Result{Action: action, Service: service}
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}
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}(sub)
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}
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g.s.RUnlock()
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}
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func (g *gossipRegistry) subscribe() (chan *registry.Result, chan bool) {
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next := make(chan *registry.Result, 10)
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exit := make(chan bool)
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id := uuid.New().String()
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g.s.Lock()
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g.watchers[id] = next
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g.s.Unlock()
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go func() {
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<-exit
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g.s.Lock()
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delete(g.watchers, id)
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close(next)
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g.s.Unlock()
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}()
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return next, exit
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}
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func (g *gossipRegistry) run() {
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var mtx sync.Mutex
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updates := map[uint64]*update{}
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// expiry loop
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go func() {
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t := time.NewTicker(ExpiryTick)
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defer t.Stop()
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for _ = range t.C {
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now := uint64(time.Now().UnixNano())
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mtx.Lock()
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// process all the updates
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for k, v := range updates {
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// check if expiry time has passed
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if d := (v.Update.Timestamp + v.Update.Expires); d < now {
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// delete from records
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delete(updates, k)
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// set to delete
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v.Update.Action = delAction
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// fire a new update
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g.updates <- v
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}
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}
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mtx.Unlock()
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}
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}()
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// process the updates
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for u := range g.updates {
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switch u.Update.Action {
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case addAction:
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g.Lock()
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if service, ok := g.services[u.Service.Name]; !ok {
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g.services[u.Service.Name] = []*registry.Service{u.Service}
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} else {
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g.services[u.Service.Name] = addServices(service, []*registry.Service{u.Service})
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}
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g.Unlock()
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// publish update to watchers
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go g.publish(addAction, []*registry.Service{u.Service})
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// we need to expire the node at some point in the future
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if u.Update.Expires > 0 {
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// create a hash of this service
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if hash, err := hashstructure.Hash(u.Service, nil); err == nil {
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mtx.Lock()
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updates[hash] = u
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mtx.Unlock()
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}
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}
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case delAction:
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g.Lock()
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if service, ok := g.services[u.Service.Name]; ok {
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if services := delServices(service, []*registry.Service{u.Service}); len(services) == 0 {
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delete(g.services, u.Service.Name)
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} else {
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g.services[u.Service.Name] = services
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}
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}
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g.Unlock()
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// publish update to watchers
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go g.publish(delAction, []*registry.Service{u.Service})
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// delete from expiry checks
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if hash, err := hashstructure.Hash(u.Service, nil); err == nil {
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mtx.Lock()
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delete(updates, hash)
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mtx.Unlock()
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}
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case syncAction:
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// no sync channel provided
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if u.sync == nil {
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continue
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}
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g.RLock()
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// push all services through the sync chan
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for _, service := range g.services {
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for _, srv := range service {
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u.sync <- srv
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}
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// publish to watchers
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go g.publish(addAction, service)
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}
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g.RUnlock()
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// close the sync chan
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close(u.sync)
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}
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}
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d.registry.Unlock()
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}
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func (g *gossipRegistry) Init(opts ...registry.Option) error {
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addrs := g.opts.Addrs
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for _, o := range opts {
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o(&g.opts)
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}
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// if we have memberlist join it
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if len(addrs) != len(g.opts.Addrs) {
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_, err := g.memberlist.Join(g.opts.Addrs)
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if err != nil {
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return err
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}
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}
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return nil
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return configure(g, opts...)
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}
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func (g *gossipRegistry) Options() registry.Options {
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return g.opts
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return g.options
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}
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|
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func (g *gossipRegistry) Register(s *registry.Service, opts ...registry.RegisterOption) error {
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@ -201,12 +440,22 @@ func (g *gossipRegistry) Register(s *registry.Service, opts ...registry.Register
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}
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g.Lock()
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g.services[s.Name] = addServices(g.services[s.Name], []*registry.Service{s})
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if service, ok := g.services[s.Name]; !ok {
|
||||
g.services[s.Name] = []*registry.Service{s}
|
||||
} else {
|
||||
g.services[s.Name] = addServices(service, []*registry.Service{s})
|
||||
}
|
||||
g.Unlock()
|
||||
|
||||
var options registry.RegisterOptions
|
||||
for _, o := range opts {
|
||||
o(&options)
|
||||
}
|
||||
|
||||
up := &pb.Update{
|
||||
Id: uuid.New().String(),
|
||||
Timestamp: uint64(time.Now().UnixNano()),
|
||||
Expires: uint64(options.TTL.Nanoseconds()),
|
||||
Action: "update",
|
||||
Type: "service",
|
||||
Metadata: map[string]string{
|
||||
@ -220,6 +469,9 @@ func (g *gossipRegistry) Register(s *registry.Service, opts ...registry.Register
|
||||
notify: nil,
|
||||
})
|
||||
|
||||
// wait
|
||||
<-time.After(g.interval * 2)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
@ -230,7 +482,13 @@ func (g *gossipRegistry) Deregister(s *registry.Service) error {
|
||||
}
|
||||
|
||||
g.Lock()
|
||||
g.services[s.Name] = delServices(g.services[s.Name], []*registry.Service{s})
|
||||
if service, ok := g.services[s.Name]; ok {
|
||||
if services := delServices(service, []*registry.Service{s}); len(services) == 0 {
|
||||
delete(g.services, s.Name)
|
||||
} else {
|
||||
g.services[s.Name] = services
|
||||
}
|
||||
}
|
||||
g.Unlock()
|
||||
|
||||
up := &pb.Update{
|
||||
@ -249,135 +507,59 @@ func (g *gossipRegistry) Deregister(s *registry.Service) error {
|
||||
notify: nil,
|
||||
})
|
||||
|
||||
// wait
|
||||
<-time.After(g.interval * 2)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (g *gossipRegistry) GetService(name string) ([]*registry.Service, error) {
|
||||
g.RLock()
|
||||
if s, ok := g.services[name]; ok {
|
||||
service := cp(s)
|
||||
g.RUnlock()
|
||||
return service, nil
|
||||
}
|
||||
service, ok := g.services[name]
|
||||
g.RUnlock()
|
||||
return nil, registry.ErrNotFound
|
||||
if !ok {
|
||||
return nil, registry.ErrNotFound
|
||||
}
|
||||
return service, nil
|
||||
}
|
||||
|
||||
func (g *gossipRegistry) ListServices() ([]*registry.Service, error) {
|
||||
var services []*registry.Service
|
||||
g.RLock()
|
||||
for name, _ := range g.services {
|
||||
services = append(services, ®istry.Service{Name: name})
|
||||
for _, service := range g.services {
|
||||
services = append(services, service...)
|
||||
}
|
||||
g.RUnlock()
|
||||
return services, nil
|
||||
}
|
||||
|
||||
func (g *gossipRegistry) Watch(opts ...registry.WatchOption) (registry.Watcher, error) {
|
||||
var options registry.WatchOptions
|
||||
for _, o := range opts {
|
||||
o(&options)
|
||||
}
|
||||
|
||||
// watcher id
|
||||
id := uuid.New().String()
|
||||
|
||||
// create watcher
|
||||
w := &watcher{
|
||||
ch: make(chan *registry.Result, 1),
|
||||
exit: make(chan bool),
|
||||
id: id,
|
||||
// filter service
|
||||
srv: options.Service,
|
||||
// delete self
|
||||
fn: func() {
|
||||
g.Lock()
|
||||
delete(g.watchers, id)
|
||||
g.Unlock()
|
||||
},
|
||||
}
|
||||
|
||||
// save watcher
|
||||
g.Lock()
|
||||
g.watchers[w.id] = w
|
||||
g.Unlock()
|
||||
|
||||
return w, nil
|
||||
n, e := g.subscribe()
|
||||
return newGossipWatcher(n, e, opts...)
|
||||
}
|
||||
|
||||
func (g *gossipRegistry) String() string {
|
||||
return "gossip"
|
||||
}
|
||||
|
||||
func (g *gossipRegistry) run() error {
|
||||
hostname, _ := os.Hostname()
|
||||
|
||||
// delegates
|
||||
d := new(delegate)
|
||||
|
||||
// create a new default config
|
||||
c := memberlist.DefaultLocalConfig()
|
||||
|
||||
// assign the delegate
|
||||
c.Delegate = d
|
||||
|
||||
// Set the bind port
|
||||
c.BindPort = defaultPort
|
||||
|
||||
// set the name
|
||||
c.Name = strings.Join([]string{"micro", hostname, uuid.New().String()}, "-")
|
||||
|
||||
// log to dev null
|
||||
c.LogOutput = ioutil.Discard
|
||||
|
||||
// TODO: set advertise addr to advertise behind nat
|
||||
|
||||
// create the memberlist
|
||||
m, err := memberlist.Create(c)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// if we have memberlist join it
|
||||
if len(g.opts.Addrs) > 0 {
|
||||
_, err := m.Join(g.opts.Addrs)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// Set the broadcast limit and number of nodes
|
||||
d.queue = &memberlist.TransmitLimitedQueue{
|
||||
NumNodes: func() int {
|
||||
return m.NumMembers()
|
||||
},
|
||||
RetransmitMult: 3,
|
||||
}
|
||||
|
||||
g.queue = d.queue
|
||||
g.memberlist = m
|
||||
g.delegate = d
|
||||
d.registry = g
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// NewRegistry returns a new gossip registry
|
||||
func NewRegistry(opts ...registry.Option) registry.Registry {
|
||||
var options registry.Options
|
||||
for _, o := range opts {
|
||||
o(&options)
|
||||
}
|
||||
|
||||
g := &gossipRegistry{
|
||||
opts: options,
|
||||
gossip := &gossipRegistry{
|
||||
options: registry.Options{},
|
||||
updates: make(chan *update, 100),
|
||||
services: make(map[string][]*registry.Service),
|
||||
}
|
||||
if err := g.run(); err != nil {
|
||||
log.Fatal(err)
|
||||
watchers: make(map[string]chan *registry.Result),
|
||||
}
|
||||
|
||||
log.Logf("Registry Listening on %s", g.memberlist.LocalNode().Address())
|
||||
// return gossip registry
|
||||
return g
|
||||
// configure the gossiper
|
||||
if err := configure(gossip, opts...); err != nil {
|
||||
log.Fatal("Error configuring registry: %v", err)
|
||||
}
|
||||
|
||||
// run the updater
|
||||
go gossip.run()
|
||||
|
||||
// wait for setup
|
||||
<-time.After(gossip.interval * 2)
|
||||
|
||||
return gossip
|
||||
}
|
||||
|
||||
17
registry/gossip/options.go
Normal file
17
registry/gossip/options.go
Normal file
@ -0,0 +1,17 @@
|
||||
package gossip
|
||||
|
||||
import (
|
||||
"context"
|
||||
|
||||
"github.com/micro/go-micro/registry"
|
||||
)
|
||||
|
||||
type contextSecretKey struct{}
|
||||
|
||||
// Secret specifies an encryption key. The value should be either
|
||||
// 16, 24, or 32 bytes to select AES-128, AES-192, or AES-256.
|
||||
func Secret(k []byte) registry.Option {
|
||||
return func(o *registry.Options) {
|
||||
o.Context = context.WithValue(o.Context, contextSecretKey{}, k)
|
||||
}
|
||||
}
|
||||
@ -1,20 +1,13 @@
|
||||
// Code generated by protoc-gen-go. DO NOT EDIT.
|
||||
// source: github.com/micro/go-micro/registry/gossip/proto/gossip.proto
|
||||
|
||||
/*
|
||||
Package gossip is a generated protocol buffer package.
|
||||
|
||||
It is generated from these files:
|
||||
github.com/micro/go-micro/registry/gossip/proto/gossip.proto
|
||||
|
||||
It has these top-level messages:
|
||||
Update
|
||||
*/
|
||||
package gossip
|
||||
|
||||
import proto "github.com/golang/protobuf/proto"
|
||||
import fmt "fmt"
|
||||
import math "math"
|
||||
import (
|
||||
fmt "fmt"
|
||||
proto "github.com/golang/protobuf/proto"
|
||||
math "math"
|
||||
)
|
||||
|
||||
// Reference imports to suppress errors if they are not otherwise used.
|
||||
var _ = proto.Marshal
|
||||
@ -25,28 +18,53 @@ var _ = math.Inf
|
||||
// is compatible with the proto package it is being compiled against.
|
||||
// A compilation error at this line likely means your copy of the
|
||||
// proto package needs to be updated.
|
||||
const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
|
||||
const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
|
||||
|
||||
// Update is the message broadcast
|
||||
type Update struct {
|
||||
// unique id of update
|
||||
Id string `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
|
||||
Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
|
||||
// unix nano timestamp of update
|
||||
Timestamp uint64 `protobuf:"varint,2,opt,name=timestamp" json:"timestamp,omitempty"`
|
||||
Timestamp uint64 `protobuf:"varint,2,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
|
||||
// time to live for entry
|
||||
Expires uint64 `protobuf:"varint,3,opt,name=expires,proto3" json:"expires,omitempty"`
|
||||
// type of update; service
|
||||
Type string `protobuf:"bytes,3,opt,name=type" json:"type,omitempty"`
|
||||
Type string `protobuf:"bytes,4,opt,name=type,proto3" json:"type,omitempty"`
|
||||
// what action is taken; add, del, put
|
||||
Action string `protobuf:"bytes,4,opt,name=action" json:"action,omitempty"`
|
||||
Action string `protobuf:"bytes,5,opt,name=action,proto3" json:"action,omitempty"`
|
||||
// any other associated metadata about the data
|
||||
Metadata map[string]string `protobuf:"bytes,5,rep,name=metadata" json:"metadata,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
|
||||
Metadata map[string]string `protobuf:"bytes,6,rep,name=metadata,proto3" json:"metadata,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
|
||||
// the payload data;
|
||||
Data []byte `protobuf:"bytes,6,opt,name=data,proto3" json:"data,omitempty"`
|
||||
Data []byte `protobuf:"bytes,7,opt,name=data,proto3" json:"data,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *Update) Reset() { *m = Update{} }
|
||||
func (m *Update) String() string { return proto.CompactTextString(m) }
|
||||
func (*Update) ProtoMessage() {}
|
||||
func (*Update) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
|
||||
func (m *Update) Reset() { *m = Update{} }
|
||||
func (m *Update) String() string { return proto.CompactTextString(m) }
|
||||
func (*Update) ProtoMessage() {}
|
||||
func (*Update) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_18cba623e76e57f3, []int{0}
|
||||
}
|
||||
|
||||
func (m *Update) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_Update.Unmarshal(m, b)
|
||||
}
|
||||
func (m *Update) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_Update.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (m *Update) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_Update.Merge(m, src)
|
||||
}
|
||||
func (m *Update) XXX_Size() int {
|
||||
return xxx_messageInfo_Update.Size(m)
|
||||
}
|
||||
func (m *Update) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_Update.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_Update proto.InternalMessageInfo
|
||||
|
||||
func (m *Update) GetId() string {
|
||||
if m != nil {
|
||||
@ -62,6 +80,13 @@ func (m *Update) GetTimestamp() uint64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *Update) GetExpires() uint64 {
|
||||
if m != nil {
|
||||
return m.Expires
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *Update) GetType() string {
|
||||
if m != nil {
|
||||
return m.Type
|
||||
@ -92,27 +117,29 @@ func (m *Update) GetData() []byte {
|
||||
|
||||
func init() {
|
||||
proto.RegisterType((*Update)(nil), "gossip.Update")
|
||||
proto.RegisterMapType((map[string]string)(nil), "gossip.Update.MetadataEntry")
|
||||
}
|
||||
|
||||
func init() {
|
||||
proto.RegisterFile("github.com/micro/go-micro/registry/gossip/proto/gossip.proto", fileDescriptor0)
|
||||
proto.RegisterFile("github.com/micro/go-micro/registry/gossip/proto/gossip.proto", fileDescriptor_18cba623e76e57f3)
|
||||
}
|
||||
|
||||
var fileDescriptor0 = []byte{
|
||||
// 237 bytes of a gzipped FileDescriptorProto
|
||||
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x54, 0x8f, 0xcf, 0x4a, 0xc4, 0x30,
|
||||
0x10, 0xc6, 0x49, 0xdb, 0x0d, 0x76, 0xfc, 0x83, 0x0c, 0x22, 0x41, 0xf6, 0x50, 0x3c, 0xf5, 0x62,
|
||||
0x0b, 0x7a, 0x59, 0xd4, 0xab, 0x47, 0x2f, 0x01, 0x1f, 0x20, 0xdb, 0x86, 0x1a, 0x34, 0x9b, 0x90,
|
||||
0xce, 0x0a, 0x7d, 0x68, 0xdf, 0x41, 0x9a, 0x04, 0xc5, 0xdb, 0xef, 0x37, 0xf9, 0xc2, 0x7c, 0x03,
|
||||
0xcf, 0x93, 0xa1, 0xf7, 0xe3, 0xbe, 0x1b, 0x9c, 0xed, 0xad, 0x19, 0x82, 0xeb, 0x27, 0x77, 0x97,
|
||||
0x20, 0xe8, 0xc9, 0xcc, 0x14, 0x96, 0x7e, 0x72, 0xf3, 0x6c, 0x7c, 0xef, 0x83, 0x23, 0x97, 0xa5,
|
||||
0x8b, 0x82, 0x3c, 0xd9, 0xed, 0x37, 0x03, 0xfe, 0xe6, 0x47, 0x45, 0x1a, 0x2f, 0xa0, 0x30, 0xa3,
|
||||
0x60, 0x0d, 0x6b, 0x6b, 0x59, 0x98, 0x11, 0xb7, 0x50, 0x93, 0xb1, 0x7a, 0x26, 0x65, 0xbd, 0x28,
|
||||
0x1a, 0xd6, 0x56, 0xf2, 0x6f, 0x80, 0x08, 0x15, 0x2d, 0x5e, 0x8b, 0x32, 0xe6, 0x23, 0xe3, 0x35,
|
||||
0x70, 0x35, 0x90, 0x71, 0x07, 0x51, 0xc5, 0x69, 0x36, 0xdc, 0xc1, 0x89, 0xd5, 0xa4, 0x46, 0x45,
|
||||
0x4a, 0x6c, 0x9a, 0xb2, 0x3d, 0xbd, 0xdf, 0x76, 0xb9, 0x4d, 0xda, 0xdd, 0xbd, 0xe6, 0xe7, 0x97,
|
||||
0x03, 0x85, 0x45, 0xfe, 0xa6, 0xd7, 0x2d, 0xf1, 0x17, 0x6f, 0x58, 0x7b, 0x26, 0x23, 0xdf, 0x3c,
|
||||
0xc1, 0xf9, 0xbf, 0x38, 0x5e, 0x42, 0xf9, 0xa1, 0x97, 0xdc, 0x7c, 0x45, 0xbc, 0x82, 0xcd, 0x97,
|
||||
0xfa, 0x3c, 0xea, 0x58, 0xbb, 0x96, 0x49, 0x1e, 0x8b, 0x1d, 0xdb, 0xf3, 0x78, 0xfe, 0xc3, 0x4f,
|
||||
0x00, 0x00, 0x00, 0xff, 0xff, 0xf0, 0x49, 0xa9, 0xd7, 0x3e, 0x01, 0x00, 0x00,
|
||||
var fileDescriptor_18cba623e76e57f3 = []byte{
|
||||
// 251 bytes of a gzipped FileDescriptorProto
|
||||
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x54, 0x90, 0xcf, 0x4a, 0xc4, 0x30,
|
||||
0x10, 0x87, 0x69, 0xb6, 0x9b, 0xb5, 0xe3, 0x1f, 0x64, 0x10, 0x09, 0xb2, 0x87, 0xe2, 0xa9, 0x17,
|
||||
0x5b, 0xd0, 0xcb, 0xa2, 0x5e, 0x3d, 0x7a, 0x09, 0xf8, 0x00, 0xd9, 0x36, 0xd4, 0xa0, 0xd9, 0x84,
|
||||
0x64, 0x56, 0xec, 0x13, 0xf8, 0xda, 0xb2, 0x69, 0x54, 0xbc, 0x7d, 0xdf, 0xcc, 0x24, 0x99, 0x5f,
|
||||
0xe0, 0x71, 0x34, 0xf4, 0xba, 0xdf, 0xb6, 0xbd, 0xb3, 0x9d, 0x35, 0x7d, 0x70, 0xdd, 0xe8, 0x6e,
|
||||
0x66, 0x08, 0x7a, 0x34, 0x91, 0xc2, 0xd4, 0x8d, 0x2e, 0x46, 0xe3, 0x3b, 0x1f, 0x1c, 0xb9, 0x2c,
|
||||
0x6d, 0x12, 0xe4, 0xb3, 0x5d, 0x7f, 0x31, 0xe0, 0x2f, 0x7e, 0x50, 0xa4, 0xf1, 0x0c, 0x98, 0x19,
|
||||
0x44, 0x51, 0x17, 0x4d, 0x25, 0x99, 0x19, 0x70, 0x0d, 0x15, 0x19, 0xab, 0x23, 0x29, 0xeb, 0x05,
|
||||
0xab, 0x8b, 0xa6, 0x94, 0x7f, 0x05, 0x14, 0xb0, 0xd2, 0x9f, 0xde, 0x04, 0x1d, 0xc5, 0x22, 0xf5,
|
||||
0x7e, 0x14, 0x11, 0x4a, 0x9a, 0xbc, 0x16, 0x65, 0xba, 0x29, 0x31, 0x5e, 0x02, 0x57, 0x3d, 0x19,
|
||||
0xb7, 0x13, 0xcb, 0x54, 0xcd, 0x86, 0x1b, 0x38, 0xb2, 0x9a, 0xd4, 0xa0, 0x48, 0x09, 0x5e, 0x2f,
|
||||
0x9a, 0xe3, 0xdb, 0x75, 0x9b, 0xf7, 0x9c, 0xb7, 0x6a, 0x9f, 0x73, 0xfb, 0x69, 0x47, 0x61, 0x92,
|
||||
0xbf, 0xd3, 0x87, 0x57, 0xd2, 0xa9, 0x55, 0x5d, 0x34, 0x27, 0x32, 0xf1, 0xd5, 0x03, 0x9c, 0xfe,
|
||||
0x1b, 0xc7, 0x73, 0x58, 0xbc, 0xe9, 0x29, 0x67, 0x3a, 0x20, 0x5e, 0xc0, 0xf2, 0x43, 0xbd, 0xef,
|
||||
0x75, 0x0a, 0x54, 0xc9, 0x59, 0xee, 0xd9, 0xa6, 0xd8, 0xf2, 0xf4, 0x31, 0x77, 0xdf, 0x01, 0x00,
|
||||
0x00, 0xff, 0xff, 0x06, 0x6e, 0x00, 0x3c, 0x58, 0x01, 0x00, 0x00,
|
||||
}
|
||||
|
||||
@ -8,12 +8,14 @@ message Update {
|
||||
string id = 1;
|
||||
// unix nano timestamp of update
|
||||
uint64 timestamp = 2;
|
||||
// time to live for entry
|
||||
uint64 expires = 3;
|
||||
// type of update; service
|
||||
string type = 3;
|
||||
string type = 4;
|
||||
// what action is taken; add, del, put
|
||||
string action = 4;
|
||||
string action = 5;
|
||||
// any other associated metadata about the data
|
||||
map<string, string> metadata = 5;
|
||||
map<string, string> metadata = 6;
|
||||
// the payload data;
|
||||
bytes data = 6;
|
||||
bytes data = 7;
|
||||
}
|
||||
|
||||
@ -4,37 +4,48 @@ import (
|
||||
"github.com/micro/go-micro/registry"
|
||||
)
|
||||
|
||||
type watcher struct {
|
||||
id string
|
||||
srv string
|
||||
ch chan *registry.Result
|
||||
exit chan bool
|
||||
fn func()
|
||||
type gossipWatcher struct {
|
||||
wo registry.WatchOptions
|
||||
next chan *registry.Result
|
||||
stop chan bool
|
||||
}
|
||||
|
||||
func (w *watcher) Next() (*registry.Result, error) {
|
||||
func newGossipWatcher(ch chan *registry.Result, stop chan bool, opts ...registry.WatchOption) (registry.Watcher, error) {
|
||||
var wo registry.WatchOptions
|
||||
for _, o := range opts {
|
||||
o(&wo)
|
||||
}
|
||||
|
||||
return &gossipWatcher{
|
||||
wo: wo,
|
||||
next: ch,
|
||||
stop: stop,
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (m *gossipWatcher) Next() (*registry.Result, error) {
|
||||
for {
|
||||
select {
|
||||
case r := <-w.ch:
|
||||
if r.Service == nil {
|
||||
continue
|
||||
case r, ok := <-m.next:
|
||||
if !ok {
|
||||
return nil, registry.ErrWatcherStopped
|
||||
}
|
||||
if len(w.srv) > 0 && (r.Service.Name != w.srv) {
|
||||
// check watch options
|
||||
if len(m.wo.Service) > 0 && r.Service.Name != m.wo.Service {
|
||||
continue
|
||||
}
|
||||
return r, nil
|
||||
case <-w.exit:
|
||||
case <-m.stop:
|
||||
return nil, registry.ErrWatcherStopped
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (w *watcher) Stop() {
|
||||
func (m *gossipWatcher) Stop() {
|
||||
select {
|
||||
case <-w.exit:
|
||||
case <-m.stop:
|
||||
return
|
||||
default:
|
||||
close(w.exit)
|
||||
w.fn()
|
||||
close(m.stop)
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user