Refresh prepared domain every 30 minutes

libv2ray_main.go

@@ -87,9 +87,13 @@ func (v *V2RayPoint) RunLoop(prefIPv6 bool) (err error) {
 		}()
 
 		if v.AsyncResolve {
-			go v.dialer.PrepareDomain(v.DomainName, v.closeChan, prefIPv6)
+			go func() {
+				v.dialer.PrepareDomain(v.DomainName, v.closeChan, prefIPv6)
+				close(v.dialer.ResolveChan())
+			}()
 		} else {
 			v.dialer.PrepareDomain(v.DomainName, v.closeChan, prefIPv6)
+			close(v.dialer.ResolveChan())
 		}
 
 		err = v.pointloop()