52 lines
947 B
Go
52 lines
947 B
Go
|
package backoff
|
||
|
|
|
||
|
|
import "log"
|
||
|
|
|
||
|
|
func ExampleRetry() error {
|
||
|
|
operation := func() error {
|
||
|
|
// An operation that might fail.
|
||
|
|
return nil // or return errors.New("some error")
|
||
|
|
}
|
||
|
|
|
||
|
|
err := Retry(operation, NewExponentialBackOff())
|
||
|
|
if err != nil {
|
||
|
|
// Handle error.
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
// Operation is successful.
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func ExampleTicker() error {
|
||
|
|
operation := func() error {
|
||
|
|
// An operation that might fail
|
||
|
|
return nil // or return errors.New("some error")
|
||
|
|
}
|
||
|
|
|
||
|
|
b := NewExponentialBackOff()
|
||
|
|
ticker := NewTicker(b)
|
||
|
|
|
||
|
|
var err error
|
||
|
|
|
||
|
|
// Ticks will continue to arrive when the previous operation is still running,
|
||
|
|
// so operations that take a while to fail could run in quick succession.
|
||
|
|
for _ = range ticker.C {
|
||
|
|
if err = operation(); err != nil {
|
||
|
|
log.Println(err, "will retry...")
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
|
||
|
|
ticker.Stop()
|
||
|
|
break
|
||
|
|
}
|
||
|
|
|
||
|
|
if err != nil {
|
||
|
|
// Operation has failed.
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
// Operation is successful.
|
||
|
|
return nil
|
||
|
|
}
|