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Enforce a min_refresh_duration #107

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Enforce a min_refresh_duration #107

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33 changes: 31 additions & 2 deletions connection_maker.go
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Original file line number Diff line number Diff line change
Expand Up @@ -220,8 +220,37 @@ func (cm *connectionMaker) refresh() {
}

func (cm *connectionMaker) queryLoop(actionChan <-chan connectionMakerAction) {
timer := time.NewTimer(maxDuration)
run := func() { timer.Reset(cm.checkStateAndAttemptConnections()) }
currentDuration := maxDuration
lastRun := time.Time{}
timer := time.NewTimer(currentDuration)

resetTimer := func(d time.Duration) {
if !timer.Stop() {
select {
case <-timer.C:
default:
}
}

currentDuration = d
timer.Reset(currentDuration)
}

run := func() {
now := time.Now()

// If run() was called too recently, we want to ensure that the duration
// is no longer than initialInterval
if now.Sub(lastRun) < initialInterval {
if currentDuration > initialInterval {
resetTimer(initialInterval)
}
} else {
// otherwise this means we hit the timer
resetTimer(cm.checkStateAndAttemptConnections())
lastRun = now
}
}
for {
select {
case action := <-actionChan:
Expand Down