track

type Context interface {
	// Done returns a channel that's closed when work done on behalf of this
	// context should be closed. Successive calls to Done return the same value.
	// The close of the Done channel may happen asynchronously after the close or
	// cancel function called.
	// a Done channel for cancellation.
	Done() <-chan struct{}
	// Err returns the err for the goroutine death provided via Close
	// If Done is not yet closed, Err returns nil.
	// If Done is closed, Err returns ErrDying.
	// If Done is closed with Cancel function, Err returns custom error.
	Err() error
	// Close flags the goroutine as dying.
	Close() error
	// Cancel flags the goroutine as dying with custom error.
	// if error is nil, it will use ErrDying.
	Cancel(err error) error
}

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