1.只留下BlockingQueueCache

2.为了避免循环引用，重新整理package结构

stat/tunnelstatus.go

@@ -4,6 +4,7 @@ import (
 	"container/list"
 	"fmt"
 	"github.com/TransX/log"
+	"github.com/TransX/model"
 	"sync"
 )
 
@@ -40,12 +41,25 @@ func (this *TunnelStatusManager) unregister(t interface{}) {
 	this.mux.Lock()
 	defer this.mux.Unlock()
 	l := this.tunnelList
+	log.Debug("%d tunnels before remove.", this.tunnelList.Len())
+	n := 0
+	nl := new(list.List)
 	for e := l.Front(); e != nil; e = e.Next() {
-		if e == t {
-			l.Remove(e)
-			break
+		if e.Value != t {
+			// log.Debug("Found")
+			// l.Remove(e)
+			// break
+			n++
+			nl.PushBack(e.Value)
 		}
+
 	}
+	if n == this.tunnelList.Len() {
+		m := t.(*model.Tunnel)
+		log.Debug("check tunntel %s", m.GetID())
+	}
+	this.tunnelList = *nl
+	log.Debug("%d tunnels after remove.", this.tunnelList.Len())
 
 }