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race condition fix #56

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race condition fix #56

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5 changes: 5 additions & 0 deletions monitor_shared.go
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,12 @@ func (m *defaultInterfaceMonitor) Start() error {
return nil
}

var accessDelayCheckUpdate sync.Mutex

func (m *defaultInterfaceMonitor) delayCheckUpdate() {
accessDelayCheckUpdate.Lock()
defer accessDelayCheckUpdate.Unlock()

if m.checkUpdateTimer == nil {
m.checkUpdateTimer = time.AfterFunc(time.Second, m.postCheckUpdate)
} else {
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2 changes: 2 additions & 0 deletions stack_system_nat.go
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Expand Up @@ -66,7 +66,9 @@ func (n *TCPNat) LookupBack(port uint16) *TCPSession {
session := n.portMap[port]
n.portAccess.RUnlock()
if session != nil {
n.portAccess.Lock()
session.LastActive = time.Now()
n.portAccess.Unlock()
}
return session
}
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