func newDelayingQueue(clock clock.Clock) DelayingInterface {
ret := &delayingType{
Interface: New(),
clock: clock,
heartbeat: clock.Tick(maxWait),
stopCh: make(chan struct{}),
waitingTimeByEntry: map[t]time.Time{},
waitingForAddCh: make(chan waitFor, 1000),
}
go ret.waitingLoop()
return ret
}
// newExecWorker is a constructor for execWorker.
func newExecWorker(probeCmd, probePath string, execPeriod time.Duration, exec utilexec.Interface, clock clock.Clock, readyCh chan<- struct{}) *execWorker {
return &execWorker{
// Initializing the result with a timestamp here allows us to
// wait maxLatency for the worker goroutine to start, and for each
// iteration of the worker to complete.
exec: exec,
clock: clock,
result: execResult{[]byte{}, nil, clock.Now()},
period: execPeriod,
probeCmd: probeCmd,
probePath: probePath,
stopCh: make(chan struct{}),
readyCh: readyCh,
}
}
func sinceInMicroseconds(clock clock.Clock, start time.Time) float64 {
return float64(clock.Since(start).Nanoseconds() / time.Microsecond.Nanoseconds())
}