server: stop Shutdown() with no peer

After Shutdown() is called, the main goroutine waits for peers'
goroutines to stop then dies. But if no peer is configured, the main
goroutines never dies.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

1 files changed, 4 insertions, 0 deletions

diff --git a/server/server.go b/server/server.go
index bb208846..03b9cbd2 100644
--- a/server/server.go
+++ b/server/server.go
@@ -1144,6 +1144,10 @@ func (s *BgpServer) Shutdown() {
 		for _, p := range s.neighborMap {
 			p.fsm.adminStateCh <- stateOp
 		}
+		// the main goroutine waits for peers' goroutines to stop but if no peer is configured, needs to die immediately.
+		if len(s.neighborMap) == 0 {
+			os.Exit(0)
+		}
 		// TODO: call fsmincomingCh.Close()
 		return nil
 	}, false)