From cb97c3651b0e91ce6a3e7b41811b8b0d63f88f84 Mon Sep 17 00:00:00 2001
From: cloudwebrtc <duanweiwei1982@gmail.com>
Date: Sat, 20 Mar 2021 09:40:47 +0800
Subject: [PATCH] Cancel register-refresh goroutine after un-registered.

---
 examples/register/main.go | 2 +-
 pkg/ua/register.go        | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/examples/register/main.go b/examples/register/main.go
index 332bf03..b8d9862 100644
--- a/examples/register/main.go
+++ b/examples/register/main.go
@@ -53,7 +53,7 @@ func main() {
 			Password: "100",
 			Realm:    "b2bua",
 		},
-		30,
+		1800,
 		stack,
 	)
 
diff --git a/pkg/ua/register.go b/pkg/ua/register.go
index d4ad7e5..225ac5a 100644
--- a/pkg/ua/register.go
+++ b/pkg/ua/register.go
@@ -50,7 +50,7 @@ func (r *Register) SendRegister(expires uint32) error {
 
 	contact := profile.Contact()
 
-	if r.request == nil {
+	if r.request == nil || expires == 0 {
 		request, err := ua.buildRequest(sip.REGISTER, from, to, contact, recipient, nil)
 		if err != nil {
 			ua.Log().Errorf("Register: err = %v", err)
@@ -138,6 +138,7 @@ func (r *Register) SendRegister(expires uint32) error {
 					r.timer.Stop()
 					r.timer = nil
 				}
+				r.cancel()
 			}
 			ua.RegisterStateHandler(state)
 		}