Курнат Андрей
42 lines
738 B
Go
42 lines
738 B
Go
package kuberesolver
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import (
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"runtime/debug"
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"time"
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"google.golang.org/grpc/grpclog"
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)
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func until(f func(), initialPeriod, maxPeriod time.Duration, stopCh <-chan struct{}) {
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select {
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case <-stopCh:
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return
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default:
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}
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period := initialPeriod
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for {
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func() {
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defer handleCrash()
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f()
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}()
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select {
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case <-stopCh:
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return
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case <-time.After(period):
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if period*2 <= maxPeriod {
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period *= 2
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} else {
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period = initialPeriod
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}
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}
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}
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}
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// HandleCrash simply catches a crash and logs an error. Meant to be called via defer.
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func handleCrash() {
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if r := recover(); r != nil {
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callers := string(debug.Stack())
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grpclog.Errorf("kuberesolver: recovered from panic: %#v (%v)\n%v", r, r, callers)
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}
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}
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