once

Documentation

Index

• Variables
• type RetryError
  • func (o *RetryError) Do(ctx context.Context, f func() error) error

Variables

var (
	ErrPanicSuppressed = errors.New("panic suppressed")
)

Types

type RetryError

type RetryError struct {
	// contains filtered or unexported fields
}

RetryError is like sync.Once except if f returns an err Do will try again the next time it's called.

func (*RetryError) Do

func (o *RetryError) Do(ctx context.Context, f func() error) error

Do calls f if Do has not successfully been called before. Do will return before f completes if ctx is done, f will continue to run until it returns. Concurrent calls to Do will wait until the first f completes, returning that error. Subsequent calls to Do after an error will invoke f as if Do had not been called before.