func TestMemberSimple(t *testing.T) {
st := store.New()
defer close(st.Ops)
fp := &test.FakeProposer{Store: st}
c := make(chan string)
go Clean(c, fp.Store, fp)
fp.Propose([]byte(store.MustEncodeSet("/ctl/node/a/x", "a", store.Missing)))
fp.Propose([]byte(store.MustEncodeSet("/ctl/node/a/y", "b", store.Missing)))
fp.Propose([]byte(store.MustEncodeSet("/ctl/node/a/addr", "1.2.3.4", store.Missing)))
fp.Propose([]byte(store.MustEncodeSet("/ctl/cal/0", "a", store.Missing)))
calCh, err := fp.Wait(store.MustCompileGlob("/ctl/cal/0"), 1+<-fp.Seqns)
if err != nil {
panic(err)
}
nodeCh, err := fp.Wait(store.MustCompileGlob("/ctl/node/a/?"), 1+<-fp.Seqns)
if err != nil {
panic(err)
}
// indicate that this peer is inactive
go func() { c <- "1.2.3.4" }()
ev := <-calCh
assert.T(t, ev.IsSet())
assert.Equal(t, "", ev.Body)
cs := []int{}
ev = <-nodeCh
assert.T(t, ev.IsDel())
cs = append(cs, int(ev.Path[len(ev.Path)-1]))
nodeCh, err = fp.Wait(store.MustCompileGlob("/ctl/node/a/?"), ev.Seqn+1)
if err != nil {
panic(err)
}
ev = <-nodeCh
assert.T(t, ev.IsDel())
cs = append(cs, int(ev.Path[len(ev.Path)-1]))
sort.Ints(cs)
assert.Equal(t, []int{'x', 'y'}, cs)
}
package member
import (
"github.com/musicglue/doozerd/consensus"
"github.com/musicglue/doozerd/store"
"log"
)
var (
calGlob = store.MustCompileGlob("/ctl/cal/*")
)
func Clean(c chan string, st *store.Store, p consensus.Proposer) {
for addr := range c {
_, g := st.Snap()
name := getName(addr, g)
if name != "" {
go func() {
clearSlot(p, g, name)
removeInfo(p, g, name)
}()
}
}
}
func getName(addr string, g store.Getter) string {
for _, name := range store.Getdir(g, "/ctl/node") {
if store.GetString(g, "/ctl/node/"+name+"/addr") == addr {
return name
}
}
"io"
"log"
"net"
"os"
"syscall"
"time"
)
const (
alpha = 50
maxUDPLen = 3000
)
const calDir = "/ctl/cal"
var calGlob = store.MustCompileGlob(calDir + "/*")
type proposer struct {
seqns chan int64
props chan *consensus.Prop
st *store.Store
}
func (p *proposer) Propose(v []byte) (e store.Event) {
for e.Mut != string(v) {
n := <-p.seqns
w, err := p.st.Wait(store.Any, n)
if err != nil {
panic(err) // can't happen
}
p.props <- &consensus.Prop{n, v}