38 lines
837 B
Go
38 lines
837 B
Go
package retry
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import (
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"errors"
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"reflect"
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"time"
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logging "github.com/ipfs/go-log/v2"
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)
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var log = logging.Logger("retry")
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func ErrorIsIn(err error, errorTypes []error) bool {
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for _, etype := range errorTypes {
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tmp := reflect.New(reflect.PointerTo(reflect.ValueOf(etype).Elem().Type())).Interface()
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if errors.As(err, tmp) {
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return true
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}
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}
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return false
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}
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func Retry[T any](attempts int, initialBackoff time.Duration, errorTypes []error, f func() (T, error)) (result T, err error) {
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for i := 0; i < attempts; i++ {
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if i > 0 {
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log.Info("Retrying after error:", err)
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time.Sleep(initialBackoff)
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initialBackoff *= 2
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}
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result, err = f()
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if err == nil || !ErrorIsIn(err, errorTypes) {
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return result, err
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}
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}
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log.Errorf("Failed after %d attempts, last error: %s", attempts, err)
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return result, err
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}
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