1package retry
 2
 3import (
 4	"context"
 5	"time"
 6)
 7
 8// Constant is a wrapper around Retry that uses a constant backoff. It panics if
 9// the given base is less than zero.
10func Constant(ctx context.Context, t time.Duration, f RetryFunc) error {
11	return Do(ctx, NewConstant(t), f)
12}
13
14// NewConstant creates a new constant backoff using the value t. The wait time
15// is the provided constant value. It panics if the given base is less than
16// zero.
17func NewConstant(t time.Duration) Backoff {
18	if t <= 0 {
19		panic("t must be greater than 0")
20	}
21
22	return BackoffFunc(func() (time.Duration, bool) {
23		return t, false
24	})
25}