future

Documentation

Index

• type Future
  • func New() *Future
  • func (f *Future) Get() (interface{}, error)
  • func (f *Future) GetContext(ctx context.Context) (interface{}, error)
  • func (f *Future) Set(val interface{}, err error)

Types

type Future

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

The Future object implements a container for (value, error) pair that "will be populated later" and allows multiple users to wait for it to be set.

It should not be copied after first use.

func New

func New() *Future

func (*Future) Get

func (f *Future) Get() (interface{}, error)

func (*Future) GetContext

func (f *Future) GetContext(ctx context.Context) (interface{}, error)

func (*Future) Set

func (f *Future) Set(val interface{}, err error)

Set sets the Future (value, error) pair. All currently blocked and future Get calls will return it.