Prevent Peer Queue Close from being called more than Once on Shutdown

event/eventQueue.go

@@ -48,8 +48,10 @@ func (iq *queue) Len() int {
 // Shutdown closes our eventChannel
 func (iq *queue) Shutdown() {
 	iq.lock.Lock()
+	if !iq.closed {
 		iq.closed = true
 		iq.infChan.Close()
+	}
 	iq.lock.Unlock()
 
 }

peer/cwtch_peer.go

@@ -1124,11 +1124,14 @@ func (cp *cwtchPeer) StartServerConnections() {
 func (cp *cwtchPeer) Shutdown() {
 	cp.mutex.Lock()
 	defer cp.mutex.Unlock()
+	// don't allow this to be shutdown twice...
+	if !cp.shutdown {
 		cp.shutdown = true
 		cp.queue.Shutdown()
 		if cp.storage != nil {
 			cp.storage.Close(true)
 		}
+	}
 }
 
 func (cp *cwtchPeer) storeMessage(handle string, message string, sent time.Time) (int, error) {

testing/filesharing/file_sharing_integration_test.go

@@ -157,6 +157,9 @@ func TestFileSharing(t *testing.T) {
 	// run the same download test again...to check that we can actually download the file
 	testBobDownloadFile(t, bob, filesharingFunctionality, queueOracle)
 
+	// test that we can delete bob...
+	app.DeletePeer(bob.GetOnion(), "asdfasdf")
+
 	queueOracle.Shutdown()
 	app.Shutdown()
 	acn.Close()