Be fix goroutine leak (#252)

* fix(gateway):fix goroutine leak

* fix(term):remove useless code

* fix(be):add pprof for debug mode

server/global/gateway/manager.go

@@ -1,7 +1,13 @@
 package gateway
 
+import (
+	"sync"
+
+	"next-terminal/server/log"
+)
+
 type Manager struct {
-	gateways map[string]*Gateway
+	gateways *sync.Map
 
 	Add chan *Gateway
 	Del chan string
@@ -11,7 +17,7 @@ func NewManager() *Manager {
 	return &Manager{
 		Add:      make(chan *Gateway),
 		Del:      make(chan string),
-		gateways: map[string]*Gateway{},
+		gateways: new(sync.Map),
 	}
 }
 
@@ -19,19 +25,26 @@ func (m *Manager) Start() {
 	for {
 		select {
 		case g := <-m.Add:
-			m.gateways[g.ID] = g
+			m.gateways.Store(g.ID, g)
+			log.Info("add gateway: %s", g.ID)
 			go g.Run()
 		case k := <-m.Del:
-			if _, ok := m.gateways[k]; ok {
-				m.gateways[k].Close()
-				delete(m.gateways, k)
+			if val, ok := m.gateways.Load(k); ok {
+				if vv, vok := val.(*Gateway); vok {
+					vv.Close()
+					m.gateways.Delete(k)
+				}
+
 			}
 		}
 	}
 }
 
 func (m Manager) GetById(id string) *Gateway {
-	return m.gateways[id]
+	if val, ok := m.gateways.Load(id); ok {
+		return val.(*Gateway)
+	}
+	return nil
 }
 
 var GlobalGatewayManager *Manager