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Fixed tunnel race conditions. (#1094)

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This commit is contained in:
Milos Gajdos 2020-01-08 14:48:38 +00:00 committed by Asim Aslam
parent 59fccb82ec
commit 78aed5beed
1 changed files with 8 additions and 5 deletions
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13
tunnel/default.go
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@ -201,15 +201,15 @@ func (t *tun) announce(channel, session string, link *link) {
} }
// manage monitors outbound links and attempts to reconnect to the failed ones // manage monitors outbound links and attempts to reconnect to the failed ones
func (t *tun) manage() { func (t *tun) manage(reconnect time.Duration) {
reconnect := time.NewTicker(ReconnectTime) r := time.NewTicker(reconnect)
defer reconnect.Stop() defer r.Stop()
for { for {
select { select {
case <-t.closed: case <-t.closed:
return return
case <-reconnect.C: case <-r.C:
t.manageLinks() t.manageLinks()
} }
} }
@ -862,8 +862,11 @@ func (t *tun) setupLink(node string) (*link, error) {
// create a new link // create a new link
link := newLink(c) link := newLink(c)
// set link id to remote side // set link id to remote side
link.Lock()
link.id = c.Remote() link.id = c.Remote()
link.Unlock()
// send the first connect message // send the first connect message
if err := t.sendMsg("connect", link); err != nil { if err := t.sendMsg("connect", link); err != nil {
@ -984,7 +987,7 @@ func (t *tun) Connect() error {
t.setupLinks() t.setupLinks()
// manage the links // manage the links
go t.manage() go t.manage(ReconnectTime)
return nil return nil
} }